WO2018180481A1 - バルブ装置 - Google Patents
バルブ装置 Download PDFInfo
- Publication number
- WO2018180481A1 WO2018180481A1 PCT/JP2018/009871 JP2018009871W WO2018180481A1 WO 2018180481 A1 WO2018180481 A1 WO 2018180481A1 JP 2018009871 W JP2018009871 W JP 2018009871W WO 2018180481 A1 WO2018180481 A1 WO 2018180481A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuator
- valve device
- generation unit
- power
- power generation
- Prior art date
Links
- 238000010248 power generation Methods 0.000 claims abstract description 39
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 35
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910003266 NiCo Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
- F16K31/0658—Armature and valve member being one single element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/48—Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot
- F16K31/485—Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot and specially adapted for gas valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/80—Size or power range of the machines
- F05D2250/82—Micromachines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/064—Circuit arrangements for actuating electromagnets
Definitions
- the present invention relates to a gas-driven valve device.
- One of the objects of the present invention is to provide a gas-driven valve device in which various electronic devices can be mounted and the problems of wiring and battery replacement are solved.
- a valve device is a valve device that is opened and closed by a driving gas, A drive member for driving the valve body; An actuator that receives the supply of driving gas to drive the driving member; A spring member for biasing the drive member in a direction opposite to the drive direction of the actuator; A power generation unit that is provided in a drive gas supply path to the actuator and includes a screw that is rotated by a gas flow, and a generator to which the screw is connected; The power generation unit generates power using a part of energy stored in the drive gas and the spring member supplied to the actuator.
- the power generation unit may employ a configuration in which power is generated by rotation of the screw by gas flowing through the supply path when driving gas supplied to the actuator is discharged to the outside.
- the power generation unit can employ a configuration in which the screw is idled in order to suppress a pressure loss of the supplied gas when the driving gas is supplied to the actuator.
- the driving gas supplied to the actuator has a circuit for taking out only the electric power generated by the rotation of the screw by the gas flowing through the supply path when the driving gas is released to the outside of the actuator. Can be adopted.
- the power source circuit includes a power source circuit that boosts a voltage generated by the generator, and a load that operates by power supplied from the power source circuit, and includes a secondary battery or a capacitor that receives power supply from the power source circuit.
- a configuration can also be employed.
- the power generation unit does not interfere with the operation of the actuator because the power is generated by using a part of the energy stored in the driving gas and the spring member that is originally supplied to the actuator, and A valve device capable of generating electricity without supplying additional energy is obtained.
- FIG. 1 is an external perspective view of a valve device according to an embodiment of the present invention.
- 1B is a longitudinal sectional view of the valve device of FIG. 1A in a valve closed state.
- FIG. 2B is a longitudinal sectional view of FIG. 2A.
- 1B is a schematic configuration diagram of an example of a valve system that operates the valve device of FIG. 1A.
- FIG. The figure for demonstrating the flow of energy at the time of an actuator drive (at the time of valve opening) in the system of FIG. 3A.
- the functional block diagram which shows an example of a
- FIGS. 1B and 1C are views showing a configuration of a valve device according to an embodiment of the present invention, in which FIG. 1A is an external perspective view, FIG. 1B is a longitudinal sectional view in an open state, and FIG. 1C is in a closed state. It is a certain longitudinal cross-sectional view.
- arrows A1 and A2 indicate the vertical direction, A1 indicates the upward direction, and A2 indicates the downward direction.
- the valve device 1 includes a pipe joint 3, a power generation unit housing portion 5, an actuator portion 10, a valve body 20, and a circuit housing portion 50.
- the pipe joint 3 has an air flow passage 3a, is connected to a pipe (not shown), is supplied with compressed air as a drive gas to the actuator unit 10 through the flow passage 3a, or air that has been released from the actuator unit flows. It is discharged to the outside through the path 3a.
- the power generation unit housing portion 5 is formed of a cylindrical member and is connected to the pipe joint 3 by a cylindrical connecting member 4.
- the power generation unit accommodating portion 5 accommodates the power generation unit 100 and also serves as an air flow path.
- the power generation unit 100 includes a commutator generator 110, a screw 120 fixed to the rotating shaft of the commutator generator 110, and four sheets for fixing the casing of the commutator generator 110 to the inner cavity 5 a of the power generation unit housing 5. And a support plate 130.
- the inner cavity 5a also serves as an air flow path.
- the four support plates 130 are fixed around the commutator generator 110 at equal intervals, and are held between the connection member 4 and the power generation unit housing 5.
- the four support plates 130 define four flow paths 5c through which air flows. As a result, air can flow between the connection member 4 and the flow passage 5b of the power generation unit housing 5.
- the screw 120 rotates in one direction by the air flow from the connection member 4 side toward the power generation unit housing 5, and rotates in the opposite direction by the air flow from the flow path 5b toward the connection member 4 side.
- the rotation of the screw 120 is transmitted to the commutator generator 110.
- power is generated when the commutator generator 110 is electrically connected to the load circuit, but the commutator generator 110 is connected to the load circuit. In a state where the screw 120 is not electrically connected to the power, no power is generated and the screw 120 idles.
- the circuit housing unit 50 houses a diode D1, a power supply IC 601, a microcomputer 603, a wireless unit 605, a secondary battery 602, and the like, which will be described later.
- the electrical wiring of the power generation unit 100 is guided to the circuit housing portion 50 through the communication hole 5 h formed in the power generation unit housing portion 5.
- the actuator unit 10 includes a cylindrical actuator cap 11, an actuator body 12, a piston member 13, and a diaphragm presser 14 as an operation member.
- the actuator cap 11 is connected to the lower end of the power generation unit housing 5 at the center of the ceiling, and has a cylindrical portion 11a extending from the ceiling toward the downward direction A2.
- the inner peripheral surface of the cylindrical portion 11 a defines an air flow passage 11 b, and the flow passage 11 b communicates with the flow passage 5 b of the power generation unit housing portion 5.
- the actuator body 12 has a guide hole 12a for guiding the diaphragm retainer 14 in the vertical directions A1 and A2 on the lower side thereof, and a through hole 12b is formed in communication with the upper side of the guide hole 12a.
- a cylinder chamber 12c is formed on the upper side of the actuator body 12 to guide the piston portion 13b of the piston member 13 in the up and down directions A1 and A2 via an O-ring OR.
- the piston member 13 has a flow passage 13a communicating with the cylinder chamber 12c at the center.
- the flow passage 13 a communicates with the flow passage 3 a of the pipe joint 3.
- the piston portion 13b and the tip shaft portion 13c are movable in the vertical directions A1 and A2 through the cylinder chamber 12c and the through hole 12b via an O-ring OR.
- the diaphragm retainer 14 is movable in the vertical directions A1 and A2 by the guide hole 12a of the actuator body 12.
- the upper side of the valve body 20 is connected to the lower side of the actuator body 12, and gas flow paths 21 and 22 having openings 21 a and 22 a on the bottom surface thereof are defined.
- the flow paths 21 and 22 are connected to other flow path members via a seal member (not shown).
- the valve seat 16 is provided around the flow path 21 of the valve body 20.
- the valve seat 16 is formed of a resin such as PFA or PTFE so as to be elastically deformable.
- the diaphragm 15 functions as a valve body, has a larger diameter than the valve seat 16, and is formed in a spherical shell shape so as to be elastically deformable with a metal such as stainless steel or a NiCo alloy, or a fluorine resin.
- the diaphragm 15 is supported by the valve body 20 so as to be in contact with and separated from the valve seat 16 by being pressed toward the valve body 20 by the lower end surface of the actuator body 12 through the presser adapter 18.
- the diaphragm 15 is pressed by the diaphragm retainer 14, is elastically deformed, and is pressed against the valve seat 16.
- the pressure by the diaphragm presser 14 is released, it is restored to a spherical shell shape.
- the flow path 21 is closed. As shown in FIG. To do.
- the coil spring 30 is interposed between the ceiling portion of the actuator cap 11 and the piston portion 13b of the piston member 13, and always urges the piston member 13 by a restoring force in the downward direction A2.
- the upper end surface of the diaphragm retainer 14 is urged in the downward direction A2 by the piston member 13 and presses the diaphragm 15 toward the valve seat 16.
- FIG. 3A shows an example of a system for operating the valve device 1 configured as described above.
- the valve operating unit 500 is a part related to the flow of energy when the valve device 1 operates, and refers to the actuator unit 10 and the coil spring 30.
- the gas supply source 300 has a function of supplying a driving gas to the valve device 1 through an air line AL fluidly connected to the pipe joint 3 of the valve device 1, and is, for example, an accumulator or a gas cylinder.
- a solenoid valve EV1 is provided in the middle of the air line AL, and a solenoid valve EV2 is provided in the air line AL branched on the downstream side of the solenoid valve EV1.
- the control circuit 310 outputs control signals SG1 and SG2 to the electromagnetic valves EV1 and EV2 in order to control opening and closing of the electromagnetic valves EV1 and EV2.
- the load circuit 600 is an electric circuit that is electrically connected as a load to the commutator generator 110 of the power generation unit 100.
- the load circuit 600 is electrically connected to the power generation unit 100 by an electric wiring EL.
- the load circuit 600 includes a diode D1, a power supply IC 601, a secondary battery 602, a microcomputer 603, various sensors 604 such as a pressure sensor and a temperature sensor, and a wireless unit 605 that can transmit data detected by the various sensors 604 to the outside.
- the diode D ⁇ b> 1 of the load circuit 600 serves to electrically connect the load circuit 600 to the commutator generator 110 only when generating electric power using a part of the energy stored in the coil spring 30.
- the power generation unit 100 can generate power regardless of whether the screw 120 rotates in the forward or reverse direction, and can generate positive and negative DC power, but when the driving gas supplied to the valve device 1 is released.
- a diode D1 is provided to consume the power generated only in the positive direction.
- the power supply IC 601 boosts the power from the commutator generator 110 and stores it in the secondary battery 602 while adjusting the power sent to the power supply destination such as the microcomputer 603, various sensors 604, and the wireless unit 605. It also functions. For example, what is generally distributed for energy harvesting can be employed.
- the secondary battery 602 stores DC power supplied from the power supply IC 601. It is also possible to substitute a capacitor having a relatively large capacity.
- Other than the various sensors 604 are housed in the circuit housing section 50 described above, and the various sensors 604 are disposed near the flow path of the valve device 1 to detect pressure and temperature.
- the power supply IC 601 and the microcomputer 603 are electrically connected by wiring.
- the actuator unit 10 needs to be driven.
- the electromagnetic valve EV1 is opened and the electromagnetic valve EV2 is closed.
- the driving gas is supplied from the gas supply source 300 to the valve device 1.
- the driving gas is, for example, compressed air, and has a sufficiently high pressure to drive the valve device 1.
- the screw 120 rotates in the negative direction by the driving gas passing through the power generation unit 100.
- the load circuit 600 does not consume power. Since no power is consumed in the load circuit 600, no load is applied to the screw 120, and the screw is idle.
- the piston member 13 can be operated in a desired manner with almost no pressure loss of the supplied driving gas.
- the piston member 13 By supplying the driving gas to the valve device 1, as shown in FIG. 1B, the piston member 13 is pushed up in the upward direction A ⁇ b> 1, the coil spring 30 is compressed, and energy is stored in the coil spring 30.
- the contact surface 13f of the piston member 13 inelastically collides with the contact surface 11f of the actuator cap 11, so that the energy supplied from the gas supply source 300 to the valve device 1 is reduced. Some are converted into heat and vibration and released.
- the driving gas stored in the valve device 1 is released, and the energy stored in the coil spring 30 is released.
- the electromagnetic valve EV1 is closed and the electromagnetic valve EV2 is opened.
- the driving gas drives the screw 120 of the power generation unit 100 in the forward direction, whereby electric power is supplied to the load circuit 600. Supplied.
- the supplied power is charged in the secondary battery 602 while being consumed by the various sensors 604 and the like. Since the secondary battery 602 is charged while using the valve, the secondary battery 602 having a smaller capacity than the case of using the primary battery can be operated for a long time. Since the energy stored in the battery can be reduced, damage to the surroundings can be minimized even if a failure caused by the battery occurs.
- the power generation unit 100 can generate electric power without interrupting the operation of the actuator unit 10 and without supplying additional energy. Thereby, the response speed of the valve can be maintained while maintaining the supplied air pressure.
- the energy that is originally consumed due to the release to the outside through the electromagnetic valve EV2 the inelastic collision that the diaphragm retainer 14 collides with the valve seat 16 through the diaphragm 15, and the like. Since power is generated using a part, it contributes to the mitigation of impact in the inelastic collision. As a result, the remarkable effect of suppressing the occurrence of cracking of the diaphragm 15 and extending the life of the valve device 1 is brought about.
- a so-called normally closed valve is illustrated, but the present invention is not limited to this, and the present invention can also be applied to a so-called normally open valve.
- valve device 1 is driven by compressed air
- other gases than air can also be used.
- the diaphragm type valve is exemplified, but the present invention is not limited to this and can be applied to other types of valves.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Description
弁体を駆動する駆動部材と、
駆動ガスの供給を受けて前記駆動部材を駆動するアクチュエータと、
前記アクチュエータの駆動方向とは逆方向に前記駆動部材を付勢するばね部材と、
前記アクチュエータへの駆動ガスの供給経路に設けられ、ガスの流れによって回転するスクリューと、前記スクリューが連結されたジェネレータとを含む発電ユニットと、を有し、
前記発電ユニットは、前記アクチュエータに供給された駆動ガスおよび前記ばね部材に蓄えられたエネルギーの一部を利用して発電する、ことを特徴とする。
図1A~図1Cは、本発明の一実施形態に係るバルブ装置の構成を示す図であって、図1Aは外観斜視図、図1Bは開状態にある縦断面図、図1Cは閉状態にある縦断面図である。なお、図1B、図1Cにおいて、矢印A1,A2は上下方向を示しており、A1が上方向、A2が下方向を示している。
発電ユニット収容部5は円筒状部材で形成され、円筒状の接続部材4により管継手3と接続されている。発電ユニット収容部5は、発電ユニット100を収容するとともにエアの流通路を兼ねている。
発電ユニット100は、整流子ジェネレータ110と、整流子ジェネレータ110の回転軸に固定されたスクリュー120と、整流子ジェネレータ110のケーシングを発電ユニット収容部5の内腔5aに固定するための4枚の支持板130とを有する。内腔5aはエアの流通路を兼ねる。
4枚の支持板130は、整流子ジェネレータ110の周囲に等間隔に固定され、接続部材4と発電ユニット収容部5との間で保持されている。また、4枚の支持板130は、エアの流通する4つの流通路5cを画定している。これにより、接続部材4と発電ユニット収容部5の流通路5bとの間でエアが流通可能になる。
スクリュー120は、接続部材4側から発電ユニット収容部5に向かうエアの流れによって一方向に回転するとともに、流通路5bから接続部材4側に向かうエアの流れにより前記とは逆方向に回転する。スクリュー120の回転は、整流子ジェネレータ110に伝達されるが、後述するように、整流子ジェネレータ110が負荷回路に電気的に接続された状態では電力が発電するが、整流子ジェネレータ110が負荷回路と電気的に接続されていない状態では、電力は発電されずスクリュー120は空転する。
アクチュエータ部10は、円筒状のアクチュエータキャップ11、アクチュエータボディ12、ピストン部材13および操作部材としてのダイヤフラム押え14を有する。
アクチュエータキャップ11は、天井部の中心部に、上記した発電ユニット収容部5の下端部が接続されており、この天井部から下方向A2に向けて延びる円筒部11aを有する。円筒部11aの内周面はエアの流通路11bを画定しており、流通路11bは発電ユニット収容部5の流通路5bと連通している。
アクチュエータボディ12は、その下側にダイヤフラム押え14を上下方向A1,A2にガイドするガイド孔12aを有し、ガイド孔12aの上側に連通して貫通孔12bが形成されている。アクチュエータボディ12の上側には、OリングORを介してピストン部材13のピストン部13bを摺動自在に上下方向A1,A2に案内するシリンダ室12cが形成されている。
ピストン部材13は、中心部にシリンダ室12cに連通する流通路13aを有する。流通路13aは、管継手3の流通路3aと連通している。ピストン部材13は、ピストン部13bおよび先端軸部13cがOリングORを介してシリンダ室12cおよび貫通孔12bを上下方向A1,A2に移動自在となっている。
ダイヤフラム押え14はアクチュエータボディ12のガイド孔12aにより上下方向A1,A2に移動自在となっている。
バルブシート16は、バルブボディ20の流路21の周囲に設けられている。バルブシート16は、PFA、PTFE等の樹脂で弾性変形可能に形成されている。
ダイヤフラム15は、弁体として機能し、バルブシート16よりも大きな直径を有し、ステンレス、NiCo系合金などの金属やフッ素系樹脂で球殻状に弾性変形可能に形成されている。ダイヤフラム15は、押えアダプタ18を介してアクチュエータボディ12の下端面によりバルブボディ20に向けて押し付けられることによりバルブシート16に対して当接離隔可能にバルブボディ20に支持されている。図1Cにおいて、ダイヤフラム15はダイヤフラム押え14により押圧されて弾性変形し、バルブシート16に押し付けられている状態にある。ダイヤフラム押え14による押圧を開放すると、球殻状に復元する。ダイヤフラム15がバルブシート16に押し付けられている状態では、流路21が閉鎖され、図1Bに示すように、ダイヤフラム15がバルブシート16から離れると、流路21は開放され、流路22と連通する。
コイルばね30は、アクチュエータキャップ11の天井部とピストン部材13のピストン部13bとの間に介在し、ピストン部材13を常に下方向A2に向けて復元力により付勢している。これにより、ダイヤフラム押え14の上端面がピストン部材13により下方向A2に付勢され、ダイヤフラム15をバルブシート16に向けて押圧する。
負荷回路600は、発電ユニット100の整流子ジェネレータ110に負荷として電気的に接続される電気回路である。負荷回路600は、電気配線ELにより発電ユニット100に電気的に接続されている。
負荷回路600は、ダイオードD1、電源IC601、二次電池602、マイクロコンピュータ603、圧力センサ、温度センサなどの各種センサ604、各種センサ604で検出したデータを外部に送信することができる無線部605を含む。
負荷回路600のダイオードD1は、コイルばね30に蓄えられたエネルギーの一部を利用して発電する際にのみ、負荷回路600を整流子ジェネレータ110に電気的に接続させる役割を果たす。発電ユニット100は、スクリュー120が正逆のいずれの方向に回転しても発電可能であり、正および負の直流電力が発電されうるが、バルブ装置1に供給された駆動ガスが解放される際(正方向とする)にのみ発電された電力を消費させるために、ダイオードD1が設けられている。
電源IC601は、整流子ジェネレータ110からの電力を昇圧して二次電池602に蓄えつつ、マイクロコンピュータ603、各種センサ604、無線部605等の電力供給先へ送る電力を調節する電力管理ICとしての機能を兼ねている。例えば、エナジーハーベスティング用として一般的に流通しているものを採用できる。
二次電池602は、電源IC601から供給される直流電力を蓄える。容量の比較的大きいキャパシタを代用することも可能である。
各種センサ604以外は、上記した回路収容部50に収容され、各種センサ604は圧力や温度を検出すべく、バルブ装置1の流路近辺等に配置され、
電源IC601やマイクロコンピュータ603と配線によって電気的に接続される。
バルブを開くときには、アクチュエータ部10を駆動する必要があり、このため、図3Bに示すように、電磁弁EV1を開き、電磁弁EV2を閉じる。これにより、ガス供給源300から駆動ガスがバルブ装置1に供給される。駆動ガスは例えば圧縮空気であり、バルブ装置1を駆動するのに十分高い圧力を持つ。
このとき、発電ユニット100内を通過する駆動ガスにより、スクリュー120は負方向に回転する。このため、負荷回路600では、電力が消費されない。負荷回路600で電力が消費されていないので、スクリュー120には負荷がかからずスクリューは空転する。この結果、供給された駆動ガスの圧力損失をほとんど発生させずに、ピストン部材13を所望に作動させることができる。
バルブ装置1への駆動ガスの供給により、図1Bに示したように、ピストン部材13が上方向A1に押し上げられ、コイルばね30が圧縮されてコイルばね30にエネルギーが蓄えられる。このとき、図1Bに示したように、ピストン部材13の当接面13fは、アクチュエータキャップ11の当接面11fに非弾性衝突するため、ガス供給源300からバルブ装置1に供給されたエネルギーの一部は、熱や振動に変換されて放出される。
バルブを使用しながら二次電池602が充電されるため、一次電池を用いる場合と比べて小さな容量の二次電池602で、長期間動作させることができる。電池に蓄えられているエネルギーを小さくできるため、仮に電池に起因する故障が発生したとしても周囲への被害を最小限に抑えることができる。
3 管継手
5 発電ユニット収容部
10 アクチュエータ部(アクチュエータ)
11 アクチュエータキャップ
12 アクチュエータボディ
13 ピストン部材(駆動部材)
14 ダイヤフラム押え
15 ダイヤフラム
16 バルブシート
18 押えアダプタ
20 バルブボディ
30 コイルばね(ばね部材)
50 回路収容部
100 発電ユニット
110 整流子ジェネレータ
120 スクリュー
130 支持板
300 ガス供給源
310 制御回路
500 バルブ作動部
600 負荷回路
Claims (7)
- 弁体を駆動する駆動部材と、
駆動ガスの供給を受けて前記駆動部材を駆動するアクチュエータと、
前記アクチュエータへの駆動ガスの供給経路に設けられ、ガスの流れによって回転するスクリューと、前記スクリューが連結されたジェネレータとを含む発電ユニットと、を有するバルブ装置。 - 前記アクチュエータの駆動方向とは逆方向に前記駆動部材を付勢するばね部材を有し、
前記発電ユニットは、前記アクチュエータに供給された駆動ガスおよび前記ばね部材に蓄えられたエネルギーの一部を利用して発電する、請求項1に記載のバルブ装置。 - 前記発電ユニットは、前記アクチュエータに供給される駆動ガスが外部に放出される際に前記供給経路を流れるガスによる前記スクリューの回転により発電する、請求項2に記載のバルブ装置。
- 前記発電ユニットは、前記アクチュエータへの駆動ガスの供給の際に、前記スクリューを空転させる、請求項3に記載のバルブ装置。
- 前記アクチュエータに供給される駆動ガスが当該アクチュエータの外部に解放される際に前記供給経路を流れるガスによる前記スクリューの回転により発電される方向の電流のみを取り出すための回路を有する、請求項4に記載のバルブ装置。
- 前記ジェネレータにより発電した電力の電圧を昇圧する電源回路と、
前記電源回路から供給される電力により作動する負荷と、を有する請求項5に記載のバルブ装置。 - 前記電源回路から電力供給を受ける二次電池又はキャパシタを有する請求項6に記載のバルブ装置。
Priority Applications (4)
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JP2019509218A JPWO2018180481A1 (ja) | 2017-03-30 | 2018-03-14 | バルブ装置 |
KR1020197028027A KR20190122234A (ko) | 2017-03-30 | 2018-03-14 | 밸브 장치 |
CN201880021952.8A CN110462268A (zh) | 2017-03-30 | 2018-03-14 | 阀装置 |
US16/498,706 US20210102636A1 (en) | 2017-03-30 | 2018-03-14 | Valve device |
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JP2017-067398 | 2017-03-30 |
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US (1) | US20210102636A1 (ja) |
JP (1) | JPWO2018180481A1 (ja) |
KR (1) | KR20190122234A (ja) |
CN (1) | CN110462268A (ja) |
TW (1) | TWI677640B (ja) |
WO (1) | WO2018180481A1 (ja) |
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WO2020261952A1 (ja) * | 2019-06-27 | 2020-12-30 | 株式会社フジキン | ダイヤフラムバルブ |
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JP2005282712A (ja) * | 2004-03-30 | 2005-10-13 | Dainippon Screen Mfg Co Ltd | 単動空気シリンダ弁およびそれを備えた基板処理装置 |
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JP5976346B2 (ja) * | 2012-03-09 | 2016-08-23 | 株式会社ネリキ | 開閉弁操作機構及び開閉弁操作装置 |
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US20210102636A1 (en) | 2021-04-08 |
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TW201842288A (zh) | 2018-12-01 |
KR20190122234A (ko) | 2019-10-29 |
CN110462268A (zh) | 2019-11-15 |
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