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WO2013045361A1 - Pompe à chaleur à haute température et procédé d'utilisation d'un fluide de travail dans une pompe à chaleur à haute température - Google Patents

Pompe à chaleur à haute température et procédé d'utilisation d'un fluide de travail dans une pompe à chaleur à haute température Download PDF

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Publication number
WO2013045361A1
WO2013045361A1 PCT/EP2012/068645 EP2012068645W WO2013045361A1 WO 2013045361 A1 WO2013045361 A1 WO 2013045361A1 EP 2012068645 W EP2012068645 W EP 2012068645W WO 2013045361 A1 WO2013045361 A1 WO 2013045361A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat pump
temperature heat
reservoir
working medium
hydrofluoroether
Prior art date
Application number
PCT/EP2012/068645
Other languages
German (de)
English (en)
Inventor
Bernd Gromoll
Jochen SCHÄFER
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CA2850396A priority Critical patent/CA2850396A1/fr
Priority to JP2014532328A priority patent/JP2014528053A/ja
Priority to EP12769355.4A priority patent/EP2742298A1/fr
Priority to US14/348,795 priority patent/US20140245763A1/en
Priority to RU2014117522/06A priority patent/RU2014117522A/ru
Priority to CN201280047153.0A priority patent/CN103827599A/zh
Publication of WO2013045361A1 publication Critical patent/WO2013045361A1/fr

Links

Classifications

    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • the present invention relates to a high-temperature ⁇ turebenpumpe with a fluid circuit for receiving thermal energy by the fluid from at least one ers ⁇ th reservoir under application of technical work and for the delivery of thermal energy by the fluid at at least a second reservoir for heating the at least one second reservoir. Furthermore, the present invention relates to a method of using a working medium in such a high-temperature heat pump.
  • a heat pump is a machine which, by applying technical work, absorbs thermal energy from a reservoir at a lower temperature and, together with the drive energy, transfers it as useful heat to a system with a higher temperature to be heated.
  • the lower temperature reservoir may e.g. Be air from the environment or liquid and rock of the soil when using geothermal energy.
  • waste heat sources in industrial processes can also be used.
  • Heat pumps can be used to heat buildings or extract heat for industrial processes.
  • High-temperature heat pumps ⁇ lead to a useful heat to be heated system which be found ⁇ at a high temperature level.
  • the temperatures that can be achieved with the help of heat pumps for heating depend essentially on the working medium used in the heat pump.
  • the working medium is usually a fluid which is liquefied when compressed under pressure and gives off thermal energy. When expanded to a gas, the fluid cools and can absorb thermal energy from the first reservoir. In the cycle so can amount of heat be transmitted continuously or in pulses from a cooler reservoir by the application of mechanical energy to a warmer reservoir.
  • the temperature reached by a heat pump during heating depends not only on the working fluid used but also on the pressure in the condenser, which is also referred to as condenser or condenser.
  • the working fluid is liquefied by absorbing heat from the first, cooler reservoir.
  • carbon dioxide is used as the working medium.
  • the boiling point of carbon dioxide at 1 bar is, for example at -57 ° C and the Verflüs ⁇ s Trentstemperatur located at 26 bar, for example at -26 ° C.
  • carbon dioxide is an ideal working medium, but the critical temperature of carbon dioxide is only 31 ° C. Above the ⁇ ser temperature carbon dioxide can no longer be liquefied even by expending the highest pressures.
  • Hydrocarbons such as butane or pentane are more suitable for providing heat at a high temperature level because of their physical properties.
  • Butane has, for example, a boiling point at 1 bar of -12 ° C. and a liquefaction temperature at 26 bar of 114 ° C.
  • their use is problematic because of their good flammability for safety ⁇ technical reasons.
  • Object of the present invention is therefore to provide a high-temperature heat pump and a method for using a working medium in a high-temperature heat pump, which are suitable to provide heat at high temperatures such as higher 70 ° C, are environmentally friendly and simple, inexpensive and without high risk, for example by clotting ⁇ flammability can be operated.
  • the specified object is with respect to the high temperature heat pump with the features of claim 1 and with respect to the method for using a working medium in a high ⁇ temperature heat pump with the features of claim 7 ge ⁇ triggers.
  • the high-temperature heat pump comprises a fluid circuit for receiving thermal energy from a fluid from at least one first reservoir using technical work and for delivering thermal energy through the fluid to at least a second reservoir for heating the at least one second reservoir.
  • the fluid circuit is filled with a hydrofluoroether or with fluoroketone as fluid or working medium. It is also possible to use mixtures of hydrofluoroether and fluoroketone.
  • Hydrofluoroether or fluoroketone are not flammable and therefore safe to use eg in processes with high temperature. Hydrofluoroethers or fluoroketones are environmentally friendly, as they do not contribute to global warming or to increase the Ozone hole is done by these classes.
  • the known hydrofluoroethers or fluoroketones have higher critical temperatures than eg carbon dioxide. As a result, a large part of the amount of heat absorbed after compression at a temperature, especially the condensation temperature, can be released again. This facilitates, for example, the use of heat in the case of a process steam supply.
  • Transcritical in this context means that compared to subcritical process control, in which the working fluid is liquefied at a constant temperature, in transcritical process control, the heat release occurs in the supercritical region, ie when the temperature changes.
  • the high-temperature heat pump according to the invention may comprise at least one evaporator, at least one compressor, at least one condenser and / or at least one throttle as part of the fluid circuit.
  • the individual components are known in the art, e.g. from the
  • expansion valve ver ⁇ turns can be used for the compressor as a synonym and compressor, for condenser and condenser or condensers, and for the reactor, depending on the particular function of the component.
  • the fluid flowing in the fluid circuit fluid is compressed in the Kom ⁇ pressor cooled in the condenser, giving off heat to the second reservoir from flows depending on the opening of the throttle with a given speed and pressure reduction through the throttle into the evaporator where it is expanded and heat quantity deprives the first reservoir.
  • a multi-stage compressor can be used, in particular a two-stage compressor.
  • An economizer may be part of the fluid circuit.
  • An Econo miser is an additional intermediate heat exchanger in the fluid circuit. It transfers part of the heat which is present after the heat release to the second reservoir in the liquid working medium to the gaseously superheated working medium in front of the compressor.
  • a strong overheating of the Ar beitsmediums be achieved as a suction gas, whereby a Ver ⁇ seal in the wet steam region of the working mediumberichtge ⁇ can be made.
  • the economizer leads to an increase in the efficiency or the effectiveness of the high temperature ⁇ heat exchanger.
  • the fluid circuit may be closed or completed. Especially with regard to avoiding losses of working fluid, a closed fluid circuit can be selected.
  • the hydrofluoroether may be a hydrofluoroether having the chemical formula C x F y -O-C m H n , where x is 3, y is 7, 1 and n is 3, or x is 4, Y is 9, m is 1 and n is 3, or x is 4, Y is 9, m is 2 and n is 5, or x is 6, Y is 13,] is 1 and n is 3.
  • the hydrofluoroether may also be a hydrofluoroether having the chemical formula 1
  • hydrofluoroether may be a hydrofluoroether having the chemical formula
  • the inventive method for using a working ⁇ medium in a high-temperature heat pump comprises that the working fluid when flowing in a fluid circuit thermal energy from at least a first reservoir un ⁇ ter expenditure of technical work and receives thermal energy to a second reservoir for heating emits at least the at least one second reservoir.
  • hydrofluoroether or fluoroketone is used as the working medium.
  • the thermal energy can be delivered to the at least one second reservoir after the compression of the working medium at or in the region of the condensation temperature of the working medium.
  • the thermal energy can be used for process steam ⁇ ready position.
  • the at least one second reservoir, to which the thermi ⁇ specific energy is emitted, a temperature of greater than 70 ° C may have.
  • the high temperature heat pump can be operated transcritical be to Errei ⁇ chen high temperatures at low pressure.
  • the compression of the working medium can be done more stages, in particular two stages.
  • the gaseous working medium can be greatly overheated, since each with the compression in front of a wet steam area of the high-temperature heat exchanger is completely completed.
  • the overheating can be carried out by an economizer, in particular with a heat transfer of heat at the end of a high-pressure heat exchanger or the condenser to the output of the working medium on the evaporator.
  • Fig. 2 is a schematic representation of a high-temperature heat pump according to Fig. 1 with additional multi-stage compression and economizer.
  • Fig. 1 is a schematic representation of an exporting ⁇ approximately example of a high-temperature heat ⁇ pump according to the invention is shown.
  • the high temperature heat pump comprises a fluid circuit 1, in which a hydrofluoroether or fluoro ketone flows as a working medium.
  • the hydrofluoroether or the fluoroketone is a fluid which may be liquid or gaseous.
  • the hydrofluoroethers include substances having the chemical formula C x F y -O-C m H n , where x is 3, y is 7, m is 1 and n is 3, or x is 4, y is 9, m is equal to 1 and n is 3, or x is 4, y is 9, m is 2 and n is 5, or x is 6, y is 13, m is 1 and n is 3, or substances with the chemical formula C 3 F 7 CF (OC 2 H 5 ) CF (CF 3 ) 2 ,
  • CH 3 CHO (CF2CFHCF 3 ) 2 or as fluoroketone is a substance with the chemical formula CF3CF2C (0) CF (CF3) 2 in question.
  • fluoroketones with suitable physical properties can be used to provide heat at a high temperature level.
  • a first reservoir 2 is in thermal contact with an evaporator 4.
  • a second reservoir 3 is in thermal contact with a condenser 6 for the working medium.
  • the first reservoir 2 has a temperature ⁇ on which is able to dress ⁇ ner than the temperature T2 of the second reservoir 3.
  • the temperature T2 GroE SSER may be 70 ° C.
  • the working fluid heat which the first reservoir. 2 is withdrawn.
  • a gaseous working medium is sucked from the evaporator 4 by a compressor 5 and compressed.
  • the working medium with the increased pressure p 2 from the compressor 5 flows into a condenser 6, where it is liquefied with the release of heat to the second reservoir 3.
  • Characterized by the first heat quantity Re ⁇ servoir 2 having a lower temperature ⁇ is pumped to the second reservoir 3 with the higher temperature T 2, with the expenditure of work by the compressor 5, and transported.
  • the first reservoir 2 serves as a heat source and heat is supplied to the second reservoir 3 via the condenser 6 as a heater.
  • the working medium from the condenser 6 can flow back into the evaporator 4 at high pressure p 2 via a throttle valve 7 at a pressure pi.
  • the fluid circuit 1 is closed.
  • the compressor 5 in the form of a compressor increases the pressure of the working medium from pi to p 2 and via the throttle 7 in the form of an expansion valve, the pressure of p 2 is reduced to pi.
  • the fluid circuit can be classified into a low-pressure cold side pi, ie, a low-pressure side, and a high-pressure hot side p 2 , that is, a high-pressure side.
  • the low-pressure side comprises the Ver ⁇ evaporator 4 and the high pressure side comprising the capacitor. 6
  • the efficiency of the high-temperature heat exchanger ie the ratio of pumped heat quantity to work done for pumping, eg in the form of mechanical work of the compressor 5, can be improved.
  • the economizer 8 may be designed as a heat exchanger, which receives heat quantity from the liquid working medium at the outlet of the condenser 6 and to the gaseous working medium at the outlet of the evaporator 4 emits. As a result, an overheating of the gaseous working medium can be achieved, whereby a compression in the wet steam region of the condenser 6 can be ensured.
  • hydrofluoroether or fluoroketone as a working medium or fluid in the inventive high temperature heat exchanger and process a safe, environmentally friendly and effective pumping of heat from the first re ⁇ servoir 2 with low temperature ⁇ is possible in the second reservoir 3 with a high temperature T 2 ,
  • Hydrofluoroethers and fluoroketones are non-flammable and therefore safe to use, eg in processes with high temperature and during compression. Hydrofluoroethers and fluoroketone are environmentally friendly, as no contribution to global warming or to increase the ozone hole by this class he ⁇ follows.
  • the known hydrofluoroethers and fluoroketones have higher critical temperatures than, for example, carbon dioxide, as a result of which a large part of the heat absorbed can be released again after compression.
  • hydrofluoroether and / or fluoroketone high-temperature heat pumps can be operated transcritically to achieve very high temperatures, as a result of which only moderate pressures are necessary, for example less than when using carbon dioxide.
  • hydrofluoroether and / or fluoroketone have fiction, modern ⁇ high temperature heat exchanger, and methods to a number of advantages over the prior art where, typical working media butane, pentane or carbon dioxide.
  • typical working media butane, pentane or carbon dioxide typically butane, pentane or carbon dioxide.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Lubricants (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne une pompe à chaleur à haute température comprenant un circuit de fluide (1) pour l'absorption d'énergie thermique par le fluide provenant d'au moins un premier réservoir (2) faisant intervenir un travail technique et pour la cession d'énergie thermique par le fluide à au moins un deuxième réservoir (3) pour chauffer ce dernier (3). L'invention concerne également un procédé d'utilisation d'un fluide de travail dans une telle pompe à chaleur à haute température, le fluide de travail étant de l'éther hydrofluorique ou de la fluorocétone.
PCT/EP2012/068645 2011-09-30 2012-09-21 Pompe à chaleur à haute température et procédé d'utilisation d'un fluide de travail dans une pompe à chaleur à haute température WO2013045361A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA2850396A CA2850396A1 (fr) 2011-09-30 2012-09-21 Pompe a chaleur a haute temperature et procede d'utilisation d'un fluide de travail dans une pompe a chaleur a haute temperature
JP2014532328A JP2014528053A (ja) 2011-09-30 2012-09-21 高温ヒートポンプおよび高温ヒートポンプにおける作動媒体の使用方法
EP12769355.4A EP2742298A1 (fr) 2011-09-30 2012-09-21 Pompe à chaleur à haute température et procédé d'utilisation d'un fluide de travail dans une pompe à chaleur à haute température
US14/348,795 US20140245763A1 (en) 2011-09-30 2012-09-21 High-temperature heat pump and method of using working medium in a high-temperature heat pump
RU2014117522/06A RU2014117522A (ru) 2011-09-30 2012-09-21 Высокотемпературный тепловой насос и способ для использования рабочей среды в высокотемпературном тепловом насосе
CN201280047153.0A CN103827599A (zh) 2011-09-30 2012-09-21 高温热泵和在高温热泵内工质的使用方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102011083840 2011-09-30
DE102011083840.6 2011-09-30
DE102011086476A DE102011086476A1 (de) 2011-09-30 2011-11-16 Hochtemperaturwärmepumpe und Verfahren zur Verwendung eines Arbeitsmediums in einer Hochtemperaturwärmepumpe
DE102011086476.8 2011-11-16

Publications (1)

Publication Number Publication Date
WO2013045361A1 true WO2013045361A1 (fr) 2013-04-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/068645 WO2013045361A1 (fr) 2011-09-30 2012-09-21 Pompe à chaleur à haute température et procédé d'utilisation d'un fluide de travail dans une pompe à chaleur à haute température

Country Status (8)

Country Link
US (1) US20140245763A1 (fr)
EP (1) EP2742298A1 (fr)
JP (1) JP2014528053A (fr)
CN (1) CN103827599A (fr)
CA (1) CA2850396A1 (fr)
DE (1) DE102011086476A1 (fr)
RU (1) RU2014117522A (fr)
WO (1) WO2013045361A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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WO2014198593A1 (fr) * 2013-06-14 2014-12-18 Siemens Aktiengesellschaft Procédé de fonctionnement d'un ensemble pompe à chaleur et ensemble pompe à chaleur
WO2015014648A1 (fr) * 2013-07-30 2015-02-05 Siemens Aktiengesellschaft Connexion thermotechnique d'une source géothermique à un réseau de chauffage à distance
JP2016529334A (ja) * 2013-06-04 2016-09-23 ザ ケマーズ カンパニー エフシー リミテッド ライアビリティ カンパニー 高温熱ポンプにおけるアルキルペルフルオロアルケンエーテル及びその混合物の使用

Families Citing this family (7)

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DE102017208078A1 (de) * 2017-05-12 2018-11-15 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Erhöhung der Wärmeleistung einer Wärmequelle
DE102020117899B4 (de) 2020-07-07 2022-11-17 SPH Sustainable Process Heat GmbH Hochtemperaturwärmepumpe
DE102020118854B4 (de) 2020-07-16 2022-12-29 SPH Sustainable Process Heat GmbH Temperaturmanagementsystem, Wärmepumpe sowie Verfahren zum Regeln einer Schmiermittel-Temperatur
DE102021102648B4 (de) 2021-02-04 2022-11-17 SPH Sustainable Process Heat GmbH Kolbenkompressor, insbesondere für eine Wärmepumpe
EP4095286A1 (fr) 2021-05-25 2022-11-30 Siemens Energy Global GmbH & Co. KG Agencement et procédé de génération d'hydrogène respectueux de l'environnement
DE102022101440A1 (de) 2022-01-21 2023-07-27 SPH Sustainable Process Heat GmbH Wärmepumpe zur Erzeugung von Prozesswärme
NO20230126A1 (en) 2023-02-08 2024-08-09 Heaten As Piston compressor valve arrangement and method of use

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US5650089A (en) * 1991-12-03 1997-07-22 The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Refrigerant compositions with fluorinated dimethyl ether and either difluoroethane or cyclopropane, and use thereof
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US5650089A (en) * 1991-12-03 1997-07-22 The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Refrigerant compositions with fluorinated dimethyl ether and either difluoroethane or cyclopropane, and use thereof
WO1996040834A1 (fr) * 1995-06-07 1996-12-19 E.I. Du Pont De Nemours And Company Frigorigenes a base d'hydrofluoroether ou de fluoroether
JP2002364939A (ja) * 2001-06-06 2002-12-18 Matsushita Electric Ind Co Ltd 冷凍装置
DE102007010646A1 (de) 2007-03-02 2008-09-04 Stiebel Eltron Gmbh & Co. Kg Wärmepumpenvorrichtung
EP2163838A1 (fr) * 2007-05-25 2010-03-17 Mitsubishi Electric Corporation Dispositif à cycle de réfrigération

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016529334A (ja) * 2013-06-04 2016-09-23 ザ ケマーズ カンパニー エフシー リミテッド ライアビリティ カンパニー 高温熱ポンプにおけるアルキルペルフルオロアルケンエーテル及びその混合物の使用
US10287469B2 (en) 2013-06-04 2019-05-14 The Chemours Company Fc, Llc Use of alkyl perfluoroalkene ethers and mixtures thereof in high temperature heat pumps
WO2014198593A1 (fr) * 2013-06-14 2014-12-18 Siemens Aktiengesellschaft Procédé de fonctionnement d'un ensemble pompe à chaleur et ensemble pompe à chaleur
WO2015014648A1 (fr) * 2013-07-30 2015-02-05 Siemens Aktiengesellschaft Connexion thermotechnique d'une source géothermique à un réseau de chauffage à distance
JP2016525669A (ja) * 2013-07-30 2016-08-25 シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 地熱源を地域熱供給網へ熱技術的に接続する方法

Also Published As

Publication number Publication date
DE102011086476A1 (de) 2013-04-04
EP2742298A1 (fr) 2014-06-18
US20140245763A1 (en) 2014-09-04
RU2014117522A (ru) 2015-11-10
CN103827599A (zh) 2014-05-28
JP2014528053A (ja) 2014-10-23
CA2850396A1 (fr) 2013-04-04

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