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WO2018127969A1 - Système de source de chaleur - Google Patents

Système de source de chaleur Download PDF

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Publication number
WO2018127969A1
WO2018127969A1 PCT/JP2017/000267 JP2017000267W WO2018127969A1 WO 2018127969 A1 WO2018127969 A1 WO 2018127969A1 JP 2017000267 W JP2017000267 W JP 2017000267W WO 2018127969 A1 WO2018127969 A1 WO 2018127969A1
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WO
WIPO (PCT)
Prior art keywords
heat source
heat
compressor
flow rate
source system
Prior art date
Application number
PCT/JP2017/000267
Other languages
English (en)
Japanese (ja)
Inventor
充博 石垣
▲高▼田　茂生
麻里夫 佐藤
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2018560299A priority Critical patent/JP6667673B2/ja
Priority to DE112017006742.1T priority patent/DE112017006742T5/de
Priority to PCT/JP2017/000267 priority patent/WO2018127969A1/fr
Publication of WO2018127969A1 publication Critical patent/WO2018127969A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0257—Central heating systems using heat accumulated in storage masses using heat pumps air heating system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/12—Hot-air central heating systems; Exhaust gas central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/526—Indication arrangements, e.g. displays giving audible indications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/13—Hot air central heating systems using heat pumps

Definitions

  • the present invention relates to a heat source system that heats or cools a heat medium and supplies the heat medium to a load device.
  • Patent Document 1 a heat source system that supplies hot or cold generated by a heat source device to a load device via a heat medium is known (for example, see Patent Document 1).
  • the heat source system of Patent Document 1 uses heat generated by a heat source device to heat the heat medium flowing to the load side and send the heated heat medium to the load device.
  • the conventional heat source system such as Patent Document 1
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a heat source system that detects abnormalities such as aging and equipment failure in the system.
  • a heat source system is a heat source system that supplies hot or cold heat to a load device, and heat medium heat that exchanges heat between the compressor that compresses the refrigerant and the heat medium that flows in from the refrigerant and the load side.
  • a heat source device including a refrigerant circuit in which an exchanger, a decompression device that decompresses the refrigerant, and a heat source side heat exchanger that exchanges heat between air and the refrigerant are connected via a refrigerant pipe, and the refrigerant circulates;
  • a flow rate adjusting pump that adjusts the flow rate of the heat medium flowing through the load device, a control device that controls the operation of the compressor and the flow rate adjusting pump, and a relationship that indicates the relationship between the output value of the flow rate adjusting pump and the operating frequency of the compressor
  • a control device that obtains a reference operating frequency that serves as a reference for the operating frequency of the compressor by comparing the current output value of the flow rate adjustment pump with the relationship data, and the compressor Current driving lap Compared with the number, the reference operating frequency determined, those having an abnormality determination unit that determines whether an abnormality in the system has occurred.
  • the operation frequency of the reference compressor is obtained using the above relationship data, it is possible to capture the operation state of the entire system in consideration of not only the heat source machine but also the load side situation. Therefore, abnormalities such as aging and equipment failure can be detected in the system.
  • FIG. 1 is a schematic view illustrating the configuration of the heat source system according to the first embodiment of the invention.
  • the heat source system 100 includes a heat source device 10 including a refrigerant circuit 20.
  • the refrigerant circuit 20 is configured such that a compressor 21, a heat medium heat exchanger 22, a decompressor 23, and a heat source side heat exchanger 24 are connected via a refrigerant pipe 25 so that the refrigerant circulates.
  • the compressor 21 has a compressor motor (not shown) driven by an inverter, for example, and compresses the refrigerant. That is, the compressor 21 can arbitrarily change the operating frequency by inverter control.
  • the heat medium heat exchanger 22 includes, for example, a fin-and-tube heat exchanger, and performs heat exchange between the refrigerant flowing through the refrigerant circuit 20 and the heat medium flowing from the load side.
  • the decompression device 23 is composed of, for example, an electronic expansion valve, and decompresses the refrigerant.
  • the heat source side heat exchanger 24 is composed of, for example, a fin-and-tube heat exchanger, and performs heat exchange between the refrigerant flowing in the refrigerant circuit 20 and the air.
  • the heat source device 10 is configured such that the refrigerant compressed by the compressor 21 flows to the heat medium heat exchanger 22 when supplying heat to the load side.
  • the heat source device 10 is configured such that the refrigerant compressed by the compressor 21 flows to the heat source side heat exchanger 24 when supplying cold energy to the load side.
  • the heat source side pump 63, the heat medium heat exchanger 22, and the load side heat exchanger 64 are connected by the outgoing pipe 61 and the return pipe 62, and the first heat medium circulates.
  • a heat medium circuit 60 is included.
  • the forward pipe 61 has one end connected to the heat medium heat exchanger 22 and the other end connected to the load side heat exchanger 64.
  • One end of the return pipe 62 is connected to the load side heat exchanger 64, and the other end is connected to the heat medium heat exchanger 22 via the heat source side pump 63.
  • the first heat medium circulates in the direction of the white arrow shown in FIG. 1 by driving the heat source side pump 63.
  • the heat source system 100 includes a temperature sensor 65 that is provided in the outgoing pipe 61 and measures the temperature of the heat medium flowing through the outgoing pipe 61.
  • the heat source system 100 includes a forward pipe 71 and a return pipe 72 that connect the load-side heat exchanger 64 and the load device 500, and a flow rate adjustment pump 73 provided in the return pipe 72.
  • the flow rate adjusting pump 73 has a motor (not shown) controlled by the control device 30 described later, and the output value of the flow rate adjusting pump 73 can be adjusted by adjusting the frequency.
  • the output value of the flow rate adjusting pump 73 is a ratio to the maximum frequency of the flow rate adjusting pump 73. For example, when the frequency of the flow rate adjusting pump 73 is maximized, the output value is 100%.
  • the forward piping 71 has one end connected to the load-side heat exchanger 64 and the other end connected to the load device 500.
  • One end of the return pipe 72 is connected to the load device 500, and the other end is connected to the load side heat exchanger 64 via the flow rate adjusting pump 73.
  • the flow rate adjusting pump 73 is for adjusting the flow rate of the heat medium flowing through the load device 500. That is, on the load side of the heat source device 10, the flow rate adjusting pump 73, the load side heat exchanger 64, and the load device 500 are connected by the forward piping 71 and the return piping 72, and the second heat medium circulates.
  • Two heat medium circuits 70 are formed. In the second heat medium circuit 70, the second heat medium circulates in the direction of the white arrow shown in FIG.
  • water, brine, or the like can be used as the first heat medium and the second heat medium.
  • the first heat medium and the second heat medium may be the same or different.
  • the heat source device 10 includes a control device 30, an input device 40, an output device 45, and a storage device 50.
  • the control device 30 controls the compressor 21, the decompression device 23, the heat source side pump 63, and the flow rate adjustment pump 73.
  • the control device 30 is a test operation mode for creating relationship data as an operation mode for starting and operating the heat source device 10, and a normal control for controlling various actuators in the heat source device 10 according to the load. A normal operation mode in which operation is performed.
  • the input device 40 receives an input operation by the user, and transmits an operation signal indicating the content of the received input operation to the control device 30.
  • the input device 40 includes, for example, a plurality of physical operation buttons.
  • the input device 40 has a function of accepting, for example, an operation for turning on or off the power source of the heat source device 10 by the user, an operation for setting an operation mode, and an operation for instructing activation of the heat source device 10.
  • the output device 45 outputs abnormality information indicating that the heat source system 100 is in an abnormal state.
  • the output device 45 includes, for example, a display device including a liquid crystal display (Liquid Crystal Display) or the like, a notification device including a speaker, or a combination of the display device and the notification device.
  • the display device as the output device 45 displays abnormality information by at least one of characters and images.
  • the notification device as the output device 45 notifies abnormality information by at least one of sound and sound.
  • the storage device 50 includes a nonvolatile memory.
  • the storage device 50 stores relationship data indicating the relationship between the output value of the flow rate adjusting pump 73 and the operating frequency of the compressor 21.
  • the relationship data is used by the control device 30 when estimating the reference range corresponding to the normal operation state of the heat source system 100. That is, the relationship data serves as a reference for determining whether or not the heat source system 100 is operating normally, and is used to detect an abnormal operating state of the heat source system 100.
  • the storage device 50 stores a plurality of set output values that are set in advance for creating the relationship data for the output value of the flow rate adjusting pump 73. Furthermore, the storage device 50 stores a set operation frequency associated with each set output value for the operation frequency of the compressor 21. In addition, the storage device 50 stores an operation program of the control device 30 and the like.
  • the load device 500 includes an electric valve 510 whose opening degree can be adjusted, and a heat exchanger 520 that exchanges heat between the second heat medium and air.
  • the load device 500 is, for example, an air conditioner, and can perform a heating operation when the heat source unit 10 supplies heat to the load side, and the heat source unit 10 supplies cold energy to the load side. Cooling operation can be performed.
  • the heat exchanger 520 provided in the load device 500 may exchange heat between the second heat medium and another heat medium. If it does in this way, floor heating etc. can be applied as load device 500 in the case where heat source machine 10 is the composition which supplies warm temperature to the load side. If the other heat medium to exchange heat with the second heat medium is water, a water heater can be applied as the load device 500. Furthermore, in the case where the heat source device 10 is configured to supply cold heat to the load side, if the other heat medium that exchanges heat with the second heat medium is water, the load device 500 is used in a factory, for example. It can be used as an apparatus for supplying industrial cold water.
  • FIG. 2 is a block diagram showing a functional configuration of a control device included in the heat source apparatus of FIG.
  • the control device 30 includes an operation mode determination unit 31, a data processing unit 32, a normal operation processing unit 33, and an operation control unit 34.
  • the operation mode determination unit 31 determines whether or not the user has instructed activation in the test operation mode. More specifically, the operation mode determination unit 31 outputs an operation command to the data processing unit 32 when an operation signal indicating activation in the test operation mode is transmitted from the input device 40. On the other hand, the operation mode determination unit 31 outputs an operation command to the normal operation processing unit 33 when an operation signal indicating activation in the normal operation mode is transmitted from the input device 40.
  • the data processing unit 32 adjusts the operating frequency of the compressor 21 for each set output value while changing the output value of the flow rate adjusting pump 73 to two or more set output values, and measures the temperature measured by the temperature sensor 65.
  • the operating frequency of the compressor 21 when the temperature reaches the temperature equilibrium point is stored in the storage device 50 as equilibrium data in association with the set output value at that time.
  • the data processing unit 32 creates relationship data based on two or more pieces of equilibrium data.
  • the data processing unit 32 includes a command processing unit 32a, a temperature determination unit 32b, and a data creation unit 32c.
  • the command processing unit 32a acquires the set output value and the set operation frequency associated with the set output value from the storage device 50, and sends an operation command including the acquired set output value and set operation frequency to the operation control unit 34. To be sent.
  • the command processing unit 32a acquires a determination result indicating that the measured temperature has reached the temperature equilibrium point from the temperature determination unit 32b, the output value of the flow rate adjustment pump 73 at that time corresponds to the operating frequency of the compressor 21. Then, it is stored in the storage device 50 as balanced data. In this case, if there is a set output value that is not transmitted to the operation control unit 34 in the storage device 50, the command processing unit 32a acquires a set operation frequency associated with the set output value together with one of them. It is like that.
  • the command processing unit 32a adjusts the operating frequency of the compressor 21 when a determination result indicating that the measured temperature has not reached the temperature equilibrium point is acquired from the temperature determination unit 32b. That is, the command processing unit 32 a has a function of transmitting an operation command indicating the adjustment amount of the operating frequency of the compressor 21 to the operation control unit 34. For example, the command processing unit 32a transmits to the operation control unit 34 an operation command for decreasing the operation frequency of the compressor 21 by a certain amount or an operation command for increasing the operation frequency of the compressor 21 by a certain amount.
  • the fixed amount corresponding to the adjustment amount of the operating frequency of the compressor 21 is appropriately changed according to the configuration content of the heat source system 100 and the like.
  • the temperature determination unit 32b determines whether or not the temperature measured by the temperature sensor 65 reaches the temperature equilibrium point after the set time elapses after the command processing unit 32a transmits the operation command. More specifically, the temperature determination unit 32b is configured to acquire the measured temperature from the temperature sensor 65 at regular time intervals. And the temperature determination part 32b determines with the measured temperature by the temperature sensor 65 having reached the temperature equilibrium point, when the same measured temperature is continuously acquired from the temperature sensor 65 by the set number of times until the set time. Is.
  • the set time, the fixed time, and the set number of times can be appropriately changed according to the configuration content, size, installation environment, and the like of the heat source system 100. For example, the set number of times can be arbitrarily set to two or more times.
  • the temperature determination unit 32b is configured to output the determination result to the command processing unit 32a.
  • the data creation unit 32c creates relationship data based on the equilibrium data stored by the command processing unit 32a.
  • the command processing unit 32a creates graph data in which equilibrium data is smoothly connected as the relationship data.
  • the normal operation processing unit 33 includes an operation command unit 33a and an abnormality determination unit 33b.
  • the operation command unit 33a controls various actuators provided in the heat source system 100 according to the load. In other words, the operation command unit 33 a transmits an operation command corresponding to the load to the operation control unit 34.
  • the abnormality determination unit 33b obtains a reference operating frequency that serves as a reference for the operating frequency of the compressor 21 by comparing the current output value of the flow rate adjusting pump 73 with the relationship data. Moreover, the abnormality determination part 33b compares the present operating frequency of the compressor 21 with the obtained reference operating frequency, and determines whether or not an abnormality has occurred in the system. Further, the abnormality determination unit 33b transmits an output command to the operation control unit 34 when it is determined that an abnormality has occurred in the system.
  • the abnormality determination unit 33b determines that the system is in a normal state if the current operating frequency of the compressor 21 is within a reference range determined around the reference operating frequency, and the current state of the compressor 21 is determined. If the operating frequency is outside the reference range, it is determined that an abnormality has occurred in the system.
  • the reference range is a range that is larger than the value obtained by multiplying the reference operation frequency by the lower limit determination ratio and smaller than the value obtained by multiplying the reference operation frequency by the upper limit determination ratio.
  • the lower limit determination ratio is set to a value smaller than 1
  • the upper limit determination ratio is set to a value larger than 1.
  • the abnormality determination unit 33b operates normally when the relationship of “reference operation frequency ⁇ lower limit determination ratio ⁇ current operation frequency of the compressor 21 ⁇ reference operation frequency ⁇ upper limit determination ratio” is established. It is determined that Further, the abnormality determination unit 33b has a relationship of “current operation frequency of the compressor 21 ⁇ reference operation frequency ⁇ lower limit determination ratio” or “reference operation frequency ⁇ upper determination ratio ⁇ current operation frequency of the compressor 21”. In this case, it is determined that an abnormality has occurred in the heat source system 100.
  • the abnormality determination unit 33b may detect an abnormality in the system when a difference of 10% or more occurs between the operation frequency of the compressor 21 and the reference operation frequency during normal operation. Good.
  • the threshold value of the difference between the operating frequency of the compressor 21 and the reference operating frequency is 10%
  • the lower limit determination ratio is set to 0.9
  • the upper limit determination ratio is set to 1.1.
  • the threshold value of the difference between the operation frequency of the compressor 21 and the reference operation frequency is not limited to 10%, and can be changed as appropriate according to the operation state of the heat source system 100, the installation environment, and the like.
  • the lower limit determination ratio and the upper limit determination ratio may be set so that the difference between the lower limit determination ratio and 100% and the difference between the upper limit determination ratio and 100% are different.
  • the lower limit determination ratio is set to 0.87
  • the upper limit determination ratio is set to 1.08
  • the difference between the lower limit determination ratio and 1 is different from the difference between the upper limit determination ratio and 1. You may do it.
  • a different lower limit determination ratio and upper limit determination ratio may be set for each output value of the flow rate adjustment pump 73.
  • the operation control unit 34 is configured to respond to the operation command transmitted from the command processing unit 32a or the operation command unit 33a or the output command transmitted from the abnormality determination unit 33b, the compressor 21, the pressure reducing device 23, the heat source side pump 63, The operation of the flow rate adjusting pump 73 is also controlled. Further, the operation control unit 34 causes the output device 45 to output abnormality information in response to the output command transmitted from the abnormality determination unit 33b. If the output device 45 is a display device, the operation control unit 34 causes the output device 45 to display abnormality information generated by at least one of characters and images. If the output device 45 is a notification device, the operation control unit 34 causes the output device 45 to notify the abnormality information by at least one of sound and sound.
  • the operation control unit 34 When the output device 45 includes a display device and a notification device, the operation control unit 34 outputs abnormality information from at least one of the display device and the notification device. In this way, the user or the like can recognize that an abnormality has occurred in the heat source system 100, so that a quick response can be made. For example, a user who recognizes the occurrence of an abnormality can quickly check the state of the heat source system 100 by contacting a service person or the like.
  • the control device 30 can be realized by hardware such as a circuit device that realizes each of the above functions.
  • arithmetic device such as a microcomputer, a DSP (Digital Signal Processor), or a CPU (Central Processing Unit). It can also be realized as executed software.
  • the storage device 50 can be configured by a RAM (Random Access Memory) and ROM (Read Only Memory), a PROM (Programmable ROM) such as a flash memory, an HDD (Hard Disk Drive), or the like.
  • FIG. 3 is a flowchart showing a process of creating relationship data among the operations of the heat source system of FIG. With reference to FIG. 3, the processing content of the control apparatus 30 in case the heat-source equipment 10 starts in trial operation mode is demonstrated concretely.
  • the user turns on the power source device 10 with the input device 40, sets the operation mode, and causes the heat source device 10 to start a startup process (step S101). Then, the operation mode determination part 31 determines whether the set operation mode is a trial operation mode (step S102). When the operation mode determination unit 31 determines that it is not the test operation mode (step S102 / No), the process proceeds to step S201 in FIG. 5 described later, and starts the operation in the normal operation mode.
  • step S102 when the operation mode determination unit 31 determines that the test operation mode is set (step S102 / Yes), the command processing unit 32a acquires the set output value and the set operation frequency from the storage device 50. Then, the command processing unit 32a transmits an operation command including the acquired set output value and the set operation frequency to the operation control unit 34 (step S103).
  • the operation control unit 34 drives the flow rate adjustment pump 73 with the set output value according to the operation command from the command processing unit 32a (step S104), and drives the compressor 21 with the set operation frequency (step S105).
  • the temperature determination unit 32b determines whether or not the temperature measured by the temperature sensor 65 reaches the temperature equilibrium point until the set time elapses (step S106).
  • the command processing unit 32a adjusts the operation frequency of the compressor 21. That is, the command processing unit 32 a transmits an operation command indicating the adjustment amount of the operating frequency of the compressor 21 to the operation control unit 34. Then, the operation control unit 34 decreases the operating frequency of the compressor 21 by a certain amount or increases it by a certain amount in accordance with the operation command from the command processing unit 32a (step S107).
  • Step S106 when the temperature determination unit 32b determines that the temperature equilibrium point has not been reached (No at Step S106), the process proceeds to Step S106 via Step S107, and the temperature measured by the temperature sensor 65 becomes the temperature equilibrium point. Until it reaches, a series of steps S106 to S107 is repeated.
  • step S106 when it is determined by the temperature determination unit 32b that the temperature equilibrium point has been reached (step S106 / Yes), the command processing unit 32a determines the output value of the flow rate adjustment pump 73 and the operating frequency of the compressor 21 at that time. Corresponding data are stored in the storage device 50 as balanced data (step S108).
  • the command processing unit 32a determines whether or not there is a remaining set output value in the storage device 50, that is, a set output value that has not been output to the operation control unit 34 (step S109). If there is a remaining set output value in the storage device 50, the command processing unit 32a proceeds to step S103. On the other hand, if there is no remaining set output value in the storage device 50, the command processing unit 32a transmits a data creation command to the data creation unit 32c. The data creation unit 32c reads the equilibrium data from the storage device 50 in response to the data creation command from the command processing unit 32a, and creates the relationship data using the read balance data (step S110).
  • FIG. 4 is a graph illustrating the relationship data created by the control device of FIG. With reference to FIG. 3 together with FIG. 4, an example of processing in which the control device 30 creates relationship data will be described.
  • the output value of the flow rate adjusting pump 73 is taken on the vertical axis, and the operating frequency of the compressor is taken on the horizontal axis.
  • FIG. 4 it is assumed that three set output values are stored in the storage device 50, and that each set output value is 100%, Z1%, and Z2%, respectively.
  • Z1% is a ratio smaller than 100% and larger than Z2%.
  • the data processing unit 32 acquires 100% which is the set output value from the storage device 50 and the set operation frequency associated with 100%, and transmits an operation command to the operation control unit 34 (step S103).
  • the operation control unit 34 drives the flow rate adjustment pump 73 with an output value of 100% in accordance with the operation command from the data processing unit 32 (step S104), and the temperature measured by the temperature sensor 65 becomes the temperature equilibrium point.
  • the compressor 21 is controlled so as to reach it (steps S105 to S107).
  • the data processing unit 32 associates the output value of the flow rate adjusting pump 73 and the operating frequency of the compressor 21 at that time. And stored in the storage device 50 as balanced data. In the example of FIG. 4, the data processing unit 32 stores the balance data in which the output value 100% is associated with the operation frequency Y 0 [Hz] in the storage device 50 (step S108).
  • the data processing unit 32 acquires the set output value Z 1 % and the set operation frequency associated with Z 1 % from the storage device 50, and transmits an operation command to the operation control unit 34 (step S103). ).
  • the operation control unit 34 drives the flow rate adjustment pump 73 with an output value of Z 1 % in accordance with an operation command from the data processing unit 32 (step S104), and the temperature measured by the temperature sensor 65 is a temperature equilibrium point.
  • the compressor 21 is controlled so as to arrive at (steps S105 to S107).
  • the data processing unit 32 associates the output value of the flow rate adjusting pump 73 and the operating frequency of the compressor 21 at that time. And stored in the storage device 50 as balanced data.
  • the data processing unit 32 stores the equilibrium data in which the output value Z 1 % is associated with the operation frequency Y 1 [Hz] in the storage device 50 (step S108).
  • the data processing unit 32 acquires the set output value Z 2 % and the set operation frequency associated with Z 2 % from the storage device 50, and transmits an operation command to the operation control unit 34 (step S103). ).
  • the operation control unit 34 drives the flow rate adjusting pump 73 with an output value of Z 2 % in accordance with an operation command from the data processing unit 32 (step S104), and the temperature measured by the temperature sensor 65 is a temperature equilibrium point.
  • the compressor 21 is controlled so as to arrive at (steps S105 to S107).
  • the data processing unit 32 associates the output value of the flow rate adjusting pump 73 and the operating frequency of the compressor 21 at that time. And stored in the storage device 50 as balanced data.
  • the data processing unit 32 stores the equilibrium data in which the output value Z 2 % is associated with the operation frequency Y 2 [Hz] in the storage device 50 (step S108).
  • the data processing unit 32 creates graph data obtained by smoothly connecting the three balanced data stored in the storage device 50, and stores the created graph data in the storage device 50 as relationship data.
  • the three pieces of equilibrium data stored in the storage device 50 are indicated as a point (100, Y 0 ), a point (Z 1 , Y 1 ), and a point (Z 2 , Y 2 ), respectively. Yes.
  • a graph G obtained by smoothly connecting these points corresponds to the relationship data.
  • FIG. 4 illustrates the case where three setting output values are stored in the storage device 50, but the present invention is not limited to this, and the number of setting output values may be two or four or more. If the set output value is increased, more balanced data can be extracted, and the accuracy of the graph as the relationship data is improved, so that the accuracy of detecting an abnormality in the system can be increased.
  • 100% is exemplified as one of the set output values of the flow rate adjusting pump 73, but 100% may not be included in the plurality of set output values. However, if the set output value includes 100%, the equilibrium data corresponding to the maximum load value can be acquired, and the critical point of the graph as the relationship data can be acquired.
  • the heat source system 100 operates most efficiently.
  • the generated heat is suitably transmitted to the load device 500. From the above viewpoint, it is more preferable to include 100% in the set output value.
  • FIG. 5 is a flowchart showing processing for detecting an abnormality of the heat source system in the operation of the heat source system of FIG.
  • FIG. 4 together with FIG. 5, the processing content of the control device 30 when the heat source device 10 is activated in the normal operation mode will be specifically described.
  • Step S102 of FIG. 3 when the operation mode determination unit 31 determines that it is not the test operation mode (Step S102 / No), the heat source device 10 starts in the normal operation mode. In other words, the control device 30 controls the various actuators according to the load by the operation command unit 33a (step S201).
  • the abnormality determination unit 33b acquires the output value of the flow rate adjustment pump 73 set by the operation control unit 34 and the operating frequency of the compressor 21 (step S202). Next, the abnormality determination unit 33b obtains a reference operation frequency by referring to the acquired output value of the flow rate adjustment pump 73 in relation to the relationship data.
  • FIG. 4 illustrates a case where the output value acquired in step S202 is Z 3 %. Therefore, in the example of FIG. 4, the abnormality determination unit 33b obtains the reference operating frequency Y 3 [Hz] by illuminating the output value Z 3 % against the graph G as the relationship data (step S203).
  • the abnormality determination unit 33b determines whether or not the operation frequency of the compressor 21 acquired in step S202 is within a reference range determined around the reference operation frequency (step S204). If the current operating frequency of the compressor 21 is within the reference range (step S204 / Yes), the abnormality determination unit 33b returns to step S202.
  • the abnormality determination unit 33b may return to step S202 after waiting for a predetermined period.
  • the predetermined period may be set to a relatively long period such as one day, one week, or one month, particularly for the purpose of detecting aging deterioration.
  • the abnormality determination unit 33b transmits an output command to the operation control unit 34. Then, in response to the output command, the operation control unit 34 causes the output device 45 to output abnormality information and stops the operation of the heat source system 100 (step S205).
  • the heat source system 100 obtains the reference operating frequency of the compressor 21 using the relationship data, the operation state of the entire system is considered in consideration of not only the heat source unit 10 but also the load side situation. Therefore, it is possible to detect abnormalities such as aging and equipment failure in the system.
  • an external system such as a system controller or a server is used to detect the aging or various failures of the external configuration of the heat source device 10, that is, the load side configuration of the heat source device 10.
  • the heat source system 100 is based on the relationship data in which the operation state of the flow rate adjusting pump 73 disposed on the load side and the operation state of the compressor 21 provided in the heat source device 10 are associated with each other. A range of 100 normal operating conditions is estimated. Therefore, it is possible to detect aged deterioration or various failures of the load side configuration of the heat source device 10 without using an external system.
  • the reference range corresponding to the normal operation state of the heat source system 100 is determined centering on the reference operation frequency derived from the relationship data, and is appropriately changed according to the installation environment, the operation state, and the like of the heat source system 100. Can do. Therefore, according to the heat source system 100, the abnormality detection adapted to the installation environment or the like can be performed.
  • control device 30 obtains the operation frequency of the compressor 21 corresponding to each of the plurality of set output values based on the temperature measured by the temperature sensor 65, and associates the obtained operation frequency with the set output value. Create relationship data based on equilibrium data. Therefore, since more accurate relationship data according to the installation environment and the actual machine can be used for the determination of the abnormal state, it is possible to improve the accuracy of abnormality detection. In addition, since the control device 30 creates the data of the graph connecting the equilibrium data as the relationship data, the reference operation frequency corresponding to each of the output values of the flow rate adjustment pump 73 can be obtained with high accuracy. The accuracy of abnormality detection can be further increased.
  • control device 30 when it is determined that an abnormality has occurred, causes the abnormality information to be notified by at least one of sound and voice, or causes the abnormality information to be displayed by at least one of characters and images. Can be. Therefore, the user or the like can recognize that an abnormality has occurred in the heat source system 100, and prompt action can be promoted.
  • FIG. FIG. 6 is a schematic view illustrating the configuration of the heat source system according to the second embodiment of the invention.
  • FIG. 7 is a block diagram showing a functional configuration of a control device included in the heat source apparatus of FIG. Based on FIG. 6 and FIG. 7, the structure of the heat-source system 200 which concerns on this Embodiment 2 is demonstrated.
  • the same components as those of the heat source system 100 according to Embodiment 1 described above are denoted by the same reference numerals and description thereof is omitted.
  • the heat source system 200 includes a storage tank 80 that functions as a heat storage tank between the heat medium heat exchanger 22 and the load-side heat exchanger 64.
  • the heat source system 200 includes a heat storage circuit 161 and a supply circuit 162 as the first heat medium circuit 160.
  • the heat source side pump 63, the heat medium heat exchanger 22, and the storage tank 80 are connected by a forward pipe 61 and a return pipe 62, and the first heat medium circulates.
  • the forward pipe 61 has one end connected to the heat medium heat exchanger 22 and the other end connected to the storage tank 80.
  • One end of the return pipe 62 is connected to the storage tank 80, and the other end is connected to the heat medium heat exchanger 22 via the heat source side pump 63.
  • the first heat medium circulates in the direction of the white arrow shown in FIG. 6 by driving the heat source side pump 63.
  • the supply circuit 162 is configured such that the storage tank 80 and the load-side heat exchanger 64 are connected by the forward piping 81 and the return piping 82, and the first heat medium circulates.
  • the forward pipe 81 has one end connected to the storage tank 80 and the other end connected to the load-side heat exchanger 64.
  • the return pipe 82 has one end connected to the load-side heat exchanger 64 and the other end connected to the storage tank 80.
  • the first heat medium circulates in the direction of the white arrow shown in FIG. 6 by natural convection of the first heat medium stored in the storage tank 80.
  • the first heat medium flowing in from the forward pipe 61 and the first heat medium flowing in from the return pipe 82 are mixed and flow out from the return pipe 62 and the forward pipe 81. Moreover, in the storage tank 80, the temperature stratification of the 1st heat carrier which becomes high temperature from the downward toward the upper direction is formed.
  • the heat source device 110 has a control device 130.
  • the control device 130 includes a normal operation processing unit 133 having an operation command unit 33a, an abnormality determination unit 33b, and an efficiency processing unit 133c.
  • the abnormality determination unit 33b in the second embodiment has a function of transmitting the reference operation frequency to the efficiency processing unit 133c when the current operation frequency of the compressor 21 is within the reference range.
  • the storage device 50 of the second embodiment stores a maximum efficiency frequency Yc [Hz] that is an operation frequency of the compressor 21 when the heat source apparatus 10 operates at the maximum efficiency.
  • the maximum efficiency frequency Yc [Hz] is an operating frequency of the compressor 21 when the COP (Coefficient of Performance) of the heat source device 110 is maximized.
  • the efficiency processing unit 133c reads the maximum efficiency frequency Yc from the storage device 50, and subtracts the maximum efficiency frequency Yc from the reference operation frequency acquired from the abnormality determination unit 33b to obtain a subtraction value Yca. Then, the efficiency processing unit 133c determines whether or not the subtraction value Yca is a negative value, that is, whether or not the subtraction value Yca is less than zero.
  • the heat source device 110 is operating with a control value lower than the operating state in which the COP is the best. Therefore, when the subtraction value Yca is less than 0, the efficiency processing unit 133c transmits the operation command including the maximum efficiency frequency Yc to the operation control unit 34, thereby driving the compressor 21 at the maximum efficiency frequency Yc. Thereby, the amount of heat generated by the subtraction value Yca can be stored in the storage tank 80.
  • the efficiency processing unit 133c transmits a release command to the operation control unit 34 when the heat storage set time has elapsed since the operation command including the maximum efficiency frequency Yc is transmitted to the operation control unit 34.
  • the frequency is adjusted to the operating frequency according to the load.
  • the release command is an operation command for canceling the drive of the compressor 21 at the maximum efficiency frequency Yc.
  • the heat storage setting time is determined according to the configuration content of the heat source system 200, the installation environment, and the like.
  • the heat source system 200 has a load-side control device 90 that adjusts the output value of the flow rate adjusting pump 73.
  • the load-side control device 90 has a plurality of set output values in an internal memory or the like (not shown), and when the heat source device 110 is started in the test operation mode, the output value of the flow rate adjusting pump 73 is set to each set output value. It controls to become.
  • the command processing unit 32a in the second embodiment also includes a control signal sent from the load side control device 90 to the flow rate adjustment pump 73 when the load side control device 90 adjusts the output value of the flow rate adjustment pump 73.
  • the output value after adjustment is configured to be acquired.
  • the control device 130 acquires the output value 100% when the load-side control device 90 sets the output value of the flow rate adjustment pump 73 to 100%. That is, the control device 130 is configured to acquire balance data in cooperation with the load-side control device 90. Further, as in the example of FIG. 4, during normal operation, the control device 130 acquires the output value Z 3 % when the load-side control device 90 sets the output value of the flow rate adjustment pump 73 to Z 3 %. . That is, the control device 130 is configured to obtain the reference operation frequency in cooperation with the load side control device 90.
  • control device 30 and the load-side control device 90 may be connected to each other by wire or wireless so that data communication can be performed.
  • the load-side control device 90 may transmit the adjusted output value to the control device 30 when the output value of the flow rate adjustment pump 73 is adjusted. Further, the control device 30 transmits an operation command including the output value of the flow rate adjusting pump 73 to the load side control device 90, and the load side control device 90 responds to the operation command from the control device 30.
  • the output value may be adjusted.
  • the load-side control device 90 may not have a plurality of set output values in the internal memory or the like.
  • FIG. 8 is a flowchart showing processing for detecting an abnormality of the heat source system in the operation of the heat source system of FIG.
  • the processing contents of the control device 130 when the heat source device 110 is activated in the normal operation mode will be described.
  • description is abbreviate
  • the process of creating the relationship data by the heat source system 200 is the same as the process described with reference to FIG.
  • step S102 of FIG. 3 when the operation mode determination unit 31 determines that the test operation mode is not in effect (step S102 / No), the heat source apparatus 10 is activated in the normal operation mode, and executes a series of processes of steps S201 to S204. . If the current operating frequency of the compressor 21 is outside the reference range (step S204 / No), the output device 45 is caused to output abnormality information (step S205).
  • the abnormality determination unit 33b transmits the reference operation frequency to the efficiency processing unit 133c.
  • the abnormality determination unit 33b obtains the reference operating frequency Y 3 [Hz] by comparing the output value Z 3 % with the graph G as the relationship data. Therefore, the abnormality determination unit 33b transmits the reference operation frequency Y 3 [Hz] to the efficiency processing unit 133c (Step S301).
  • the efficiency processing unit 133c reads the maximum efficiency frequency Yc from the storage device 50, and subtracts the maximum efficiency frequency Yc from the reference operation frequency acquired from the abnormality determination unit 33b to obtain a subtraction value Yca. Then, the efficiency processing unit 133c determines whether or not the subtraction value Yca is less than 0 (step S302).
  • the efficiency processing unit 133c If the subtraction value Yca is not less than 0 (No at Step S302), the efficiency processing unit 133c returns to Step S202. On the other hand, if the subtraction value Yca is less than 0 (step S302 / Yes), the efficiency processing unit 133c transmits an operation command including the maximum efficiency frequency Yc to the operation control unit 34. The operation control unit 34 drives the compressor 21 at the maximum efficiency frequency Yc in accordance with the operation command from the efficiency processing unit 133c (step S303).
  • the efficiency processing unit 133c waits until the heat storage set time elapses (step S304 / No), and transmits the release command to the operation control unit 34 when the heat storage set time elapses (step S304 / Yes).
  • the operation control unit 34 adjusts the operation frequency of the compressor 21 to the operation frequency corresponding to the load (step S305), and returns to step S202.
  • the abnormality determination unit 33b transmits the reference operation frequency to the efficiency processing unit 133c when the current operation frequency of the compressor 21 is within the reference range
  • the abnormality determination unit 33b may transmit the current operation frequency of the compressor 21 instead of the reference operation frequency to the efficiency processing unit 133c.
  • the efficiency processing unit 133c obtains a subtraction value Yca by subtracting the maximum efficiency frequency Yc from the current operating frequency of the compressor 21 acquired from the abnormality determination unit 33b.
  • the obtained subtraction value Yca is less than 0,
  • the compressor 21 may be driven at the maximum efficiency frequency Yc.
  • the heat source system 200 obtains the reference operating frequency of the compressor 21 using the relationship data, the operation state of the entire system in consideration of not only the heat source device 110 but also the load side situation. Therefore, it is possible to detect abnormalities such as aging and equipment failure in the system. Further, when the current operation frequency of the compressor 21 is within the reference range, the control device 130 operates the compressor 21 at the maximum efficiency frequency and stores the heat in the storage tank 80. In addition, the operating efficiency of the heat source system 200 can be improved. Other effects are the same as in the first embodiment.
  • FIG. 1 and FIG. 6 illustrate the case where the heat source systems 100 and 200 supply hot or cold to one load device 500.
  • the heat source systems 100 and 200 include a plurality of heat source systems 100 and 200.
  • the load device 500 may be configured to supply hot or cold heat. That is, for example, a configuration in which a plurality of load devices 500 are connected in parallel to the heat source systems 100 and 200 may be adopted. In this case, the heat source systems 100 and 200 may supply hot or cold to a plurality of air conditioners as the load device 500.
  • the heat source systems 100 and 200 may be connected as a load device 500 by combining at least two of an air conditioner, floor heating, and a water heater, and supplying hot or cold energy to these. Even in this way, according to the heat source systems 100 and 200, an abnormality in the system can be similarly detected.
  • the load device 500 includes the motor-operated valve 510.
  • the present invention is not limited thereto, and the load device 500 may not include the motor-operated valve 510.
  • the electric valve 510 may be provided outside the load device 500 or may not be provided in the second heat medium circuit 70.
  • the heat source systems 100 and 200 include the load-side heat exchanger 64
  • the present invention is not limited thereto, and the heat source systems 100 and 200 are configured without providing the load-side heat exchanger 64.
  • the outgoing pipe 81 and the outgoing pipe 71 are connected, the return pipe 82 and the return pipe 72 are connected, and the flow rate adjusting pump 73, the storage tank 80, and the load device 500 are connected, and the heat source system 200 is heated.
  • the storage tank 80 is provided between the heat medium heat exchanger 22 and the load device 500.
  • the heat source devices 10 and 110 may have a fan (not shown) that is attached to the heat source side heat exchanger 24 and blows air to the heat source side heat exchanger 24.
  • the fan includes a fan motor (not shown) driven by an inverter, for example, and rotates using the fan motor as a power source.
  • FIG. 6 exemplify the case where the flow rate adjustment pump 73 is provided in the return pipe 72, the present invention is not limited to this, and the flow rate adjustment pump 73 may be provided in the forward pipe 71. .
  • the relationship data may be table information in which the output value range of the flow rate adjusting pump 73 is associated with the reference operation frequency.
  • the relationship data may be table information in which the output value of the flow rate adjustment pump 73 is associated with the reference range.
  • the control devices 30 and 130 may obtain a reference range from the table information and determine whether or not the current operating frequency of the compressor 21 is within the reference range.
  • control devices 30 and 130 start the operation in response to the operation signal from the input device 40 is illustrated, but the present invention is not limited to this.
  • the control devices 30 and 130 may start operation in response to an instruction from an external device such as a centralized controller or a remote controller of the load device 500.
  • the present invention is not limited to this, and the storage device 50 includes one set output value.
  • a plurality of set operation frequencies may be associated with each other.
  • a priority order may be set for a plurality of set operation frequencies associated with one set output value, and the command processing unit 32a may acquire the set operation frequencies in descending order of priority. That is, when the temperature determination unit 32b determines that the measured temperature has not reached the temperature equilibrium point, the command processing unit 32a acquires the setting operation frequency having the next highest priority from the storage device 50 and acquires the setting.
  • the operation command including the operation frequency may be transmitted to the operation control unit 34.
  • control devices 30 and 130 may perform control to reduce the operating frequency of the compressor 21 by a set amount in accordance with the degree of deviation between the current operating frequency of the compressor 21 and the reference operating frequency. .
  • the heat source device 10 or 110 may have a wireless communication unit that performs wireless communication with an external communication terminal. Then, the operation control unit 34 may transmit the abnormality information to an external communication terminal via the wireless communication unit when the output command is transmitted from the abnormality determination unit 33b. In this way, for example, abnormality information can be transmitted directly to a communication terminal such as a service person who repairs the heat source system 100 or 200, etc. It can be dealt with more quickly.
  • the heat source system 100 according to the first embodiment may include the load-side control device 90 as in the heat source system 200 according to the second embodiment.
  • the heat source system 200 according to the second embodiment may be configured without providing the load-side control device 90, similarly to the heat source system 100 according to the first embodiment.
  • the heat source machine 10 is the input device 40. You may have the touch panel which combines the function of and the function of a display apparatus.

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Abstract

La présente invention concerne un système de source de chaleur qui fournit, à un dispositif de charge, de la chaleur chaude ou de la chaleur froide. Le système de source de chaleur comprend une machine de source de chaleur pourvue d'un circuit de fluide frigorigène dans lequel un compresseur, un échangeur de chaleur de milieu de chauffage, un dispositif de décompression et un échangeur de chaleur côté source de chaleur sont reliés par l'intermédiaire d'un tuyau de fluide frigorigène, et à travers lesquels circule un fluide frigorigène. De plus, le système de source de chaleur comprend : une pompe de réglage de débit qui règle le débit d'un milieu de chauffage s'écoulant à travers le dispositif de charge; un dispositif de commande qui commande les opérations du compresseur et de la pompe de réglage de débit; et un dispositif de stockage dans lequel des données de relation, qui représentent la relation entre une valeur de sortie de la pompe de réglage de débit et la fréquence de fonctionnement du compresseur, sont stockées. Le dispositif de commande comporte une unité de détermination d'anomalie qui calcule une fréquence de fonctionnement de référence, qui est une référence de la fréquence de fonctionnement du compresseur, en collationnant une valeur de sortie actuelle de la pompe de réglage de débit avec les données de relation, et qui détermine si une anomalie se produit dans le système par comparaison de la fréquence de fonctionnement actuelle du compresseur avec la fréquence de fonctionnement de référence obtenue.
PCT/JP2017/000267 2017-01-06 2017-01-06 Système de source de chaleur WO2018127969A1 (fr)

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