WO2013031191A1 - Vanne bidirectionnelle normalement fermée par un gaz et système de remplissage/évacuation de gaz haute pression associé à cette vanne - Google Patents

Vanne bidirectionnelle normalement fermée par un gaz et système de remplissage/évacuation de gaz haute pression associé à cette vanne Download PDF

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Publication number
WO2013031191A1
WO2013031191A1 PCT/JP2012/005395 JP2012005395W WO2013031191A1 WO 2013031191 A1 WO2013031191 A1 WO 2013031191A1 JP 2012005395 W JP2012005395 W JP 2012005395W WO 2013031191 A1 WO2013031191 A1 WO 2013031191A1
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WO
WIPO (PCT)
Prior art keywords
valve
gas
valve body
pressure gas
tank
Prior art date
Application number
PCT/JP2012/005395
Other languages
English (en)
Japanese (ja)
Inventor
二宮　誠
野道　薫
鈴木　豊
Original Assignee
川崎重工業株式会社
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Filing date
Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Publication of WO2013031191A1 publication Critical patent/WO2013031191A1/fr

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/304—Shut-off valves with additional means
    • F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
    • 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
    • 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
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
    • F16K31/408—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston the discharge being effected through the piston and being blockable by an electrically-actuated member making contact with the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a normally closed gas valve device in which a valve passage is closed in a normal state where the driving force of a valve body driving means does not act on a main valve body, and a high-pressure gas filling / output system including the same.
  • the high-pressure tank is provided with a high-pressure gas filling / output system to enable filling of the high-pressure gas into the tank and output of the high-pressure gas in the tank.
  • a high-pressure gas filling / output system for example, a system described in Patent Document 1 is adopted.
  • the system described in Patent Document 1 includes an output line connected to a high-pressure tank and a filling line.
  • an output side filter and an electromagnetic opening / closing valve are interposed in order from the high pressure tank side, and in the filling line, a check valve and a filling side filter are interposed in order from the high pressure tank side.
  • the output line and the filling line are joined together to reduce the number of high-pressure pipes, so that one external connection port is provided.
  • an electromagnetic on-off valve described in Patent Document 2 is employed.
  • the electromagnetic on-off valve described in Patent Document 2 employed in such a system employs a pilot direct acting structure in which the valve element moves in the axial direction.
  • the valve body receives the pressure of the gas on the output side in the direction to open the valve passage. Therefore, the high pressure tank of the high pressure tank is filled in the outflow port that outputs high pressure gas at the time of output.
  • a high-pressure gas having a pressure higher than the internal pressure is introduced, the valve body is lifted by the high-pressure gas and the valve passage is forcibly opened. Therefore, when high-pressure gas flows to the inflow port during filling, the high-pressure gas flows back to the high-pressure tank through the output side filter. By flowing backward, the contamination (foreign matter) captured by the output side filter at the time of output is detached, and the filter element is damaged by the separation. Further, new contamination occurs due to the damage of the filter element.
  • an object of the present invention is to provide a bidirectional normally closed gas valve device capable of preventing the flow of bidirectional high-pressure gas from the inflow port to the outflow port and from the outflow port to the inflow port in the normal state.
  • the bidirectional normally closed gas valve device of the present invention includes an inflow port through which a gas flows in, an outflow port through which the gas flows out, a housing having a valve passage connecting the inflow port and the outflow port, and the housing A seat member provided in the housing that is movable between a closed position that sits on the seat member and closes the upstream side of the valve passage and an open position that opens the valve passage away from the seat member;
  • the main valve element receiving an acting force in the direction toward the closed position from the gas on the inflow port side, and a driving force that resists the acting force in the direction toward the closed position when a current or voltage is applied.
  • a valve body drive means for applying to the main valve body to move the main valve body to the open position; a shut-off position for sitting between the inflow port and the outflow port by sitting on the seat member; It is provided in the housing so as to be movable between an allowable position that allows gas flow from the inlet port to the outlet port away from the member, and pushes the gas flowing from the upstream side of the valve passage in the direction toward the allowable position.
  • a check valve body that receives pressure and receives a pressing force in a direction from the gas on the outflow port side toward the shut-off position; and a bias that applies a biasing force to the check valve body in a direction toward the shut-off position. And a member.
  • the main valve body driving means when current or voltage is applied to the valve body driving means, the main valve body moves to the open position, the valve passage is opened, and the gas in the inflow port is guided toward the check valve body. Then, the check valve body receives the pressing force in the direction from the gas from the inflow port toward the allowable position and moves to the allowable position. Thereby, gas can be flowed from an inflow port to an outflow port.
  • the valve passage is closed by the main valve body, and the flow of gas from the inflow port to the outflow port is blocked.
  • the check valve body receives the pressing force in the direction toward the blocking position from the gas and moves to the blocking position. Thereby, it is possible to prevent the high-pressure gas led to the outflow port from flowing back to the inflow port through the valve passage.
  • gas when current or voltage is applied to the valve body driving means, gas can flow from the inflow port to the outflow port, and when the current or voltage is interrupted, bidirectional flow from the inflow port to the outflow port and from the outflow port to the inflow port can be performed.
  • the flow of high-pressure gas can be prevented.
  • the present invention has a compact configuration, but unless the valve body driving means is operated, the bidirectional gas flow (the gas flow from the inflow port to the outflow port and the gas from the outflow port to the inflow port) The flow can be interrupted.
  • the housing is preferably a valve block provided at an opening of a tank for storing the gas.
  • the bidirectional normally closed gas valve device can be disposed in the tank, and the overall length of the tank and the bidirectional normally closed gas valve device can be shortened for miniaturization. Can do.
  • the high-pressure gas filling / output system of the above invention is connected to the above-described bidirectional normally closed gas valve device, an output line connected to a tank filled with high-pressure gas and an external connection port, and the tank.
  • a stop valve and a filter that is interposed on the tank side from the confluence of the filling line in the output line and captures foreign matter contained in the high-pressure gas
  • the bidirectional normally closed gas valve device includes: An output line is interposed between the confluence of the filling line and the filter, the inflow port is located on the tank side, and the outflow port is Those that are positioned on the parts connecting port side.
  • the high-pressure gas filled in the tank can pass through the filter and the output side check valve and be output through the external connection port. At this time, since the high-pressure gas passes through the filter, foreign matter contained in the high-pressure gas can be captured by the filter.
  • the injected high-pressure gas when high-pressure gas is injected into the external connection port, the injected high-pressure gas can be guided to the tank through the filling-side check valve, and the high-pressure tank can be filled with gas.
  • the output line the flow of the high-pressure gas flowing into the tank is stopped by the output-side check valve, so that the high-pressure gas can be prevented from flowing back through the output line and reaching the filter. Thereby, it can suppress that the foreign material caught by the filter at the time of output returns to the tank side.
  • bidirectional high-pressure gas flow from the inflow port to the outflow port and from the outflow port to the inflow port can be prevented.
  • FIG. 1 is a circuit diagram showing a high-pressure gas filling / output system including a bidirectional normally closed valve device according to an embodiment of the present invention. It is sectional drawing which shows the bidirectional
  • system 1 a high-pressure gas filling / output system (hereinafter, also simply referred to as “system”) 1 according to an embodiment of the present invention will be described with reference to the drawings described above.
  • system also simply referred to as “system”
  • the concept of the direction such as up and down in the embodiment is used for convenience of explanation, and it is suggested that the arrangement and orientation of the configuration of the system 1 and the valve device 16 are limited to that direction. Not what you want.
  • the structure of the system 1 and the valve device 16 described below is only one embodiment of the present invention, and the present invention is not limited to the embodiment, and additions, deletions, and modifications are made without departing from the spirit of the invention. Is possible.
  • the system 1 is provided in vehicles such as a compressed natural gas vehicle, a hydrogen gas vehicle, and a fuel cell vehicle.
  • Compressed natural gas vehicles and hydrogen gas vehicles have a gas engine, and fuel gas (compressed natural gas (CNG), hydrogen gas, etc.) is burned in this gas engine to obtain driving force and drive wheels. It is designed to move.
  • the fuel cell automobile has a fuel cell stack.
  • the fuel cell stack consumes fuel gas to generate electric power, and the generated electric power is supplied to a motor to generate driving force.
  • a fuel gas consumer (not shown) that consumes fuel gas and generates driving force, such as a gas engine or a fuel cell stack, is connected to the high-pressure tank 2 via the system 1.
  • the high-pressure tank 2 can store a high-pressure fuel gas of, for example, 35 to 70 MPa or more, and the system 1 fills the high-pressure tank 2 with the high-pressure gas and is stored there.
  • the fuel gas is output to the fuel gas consumer. Below, the structure of the system 1 is demonstrated.
  • the system 1 includes a valve block 11, and the valve block 11 includes a filling-side check valve 12, an output-side filter 13, and a bidirectional normally closed valve device (hereinafter, referred to as “the valve block 11”). 16) (also referred to simply as “valve device”).
  • the valve block 11 is screwed into an opening of the high-pressure tank 2, and an external connection port 20 connected to a filling port for filling high-pressure gas and a fuel gas consumer is formed there.
  • an output line 21 that connects the external connection port 20 and the inside of the high-pressure tank 2 is formed inside the valve block 11, and a filling line 22 is formed inside the valve block 11 separately from the output line 21. ing.
  • One end of the filling line 22 is connected to the inside of the high-pressure tank 2, and the other end is joined to the output line 21. Thereby, the filling line 22 is connected to the external connection port 20 via the output line 21.
  • the filling side check valve 12 is interposed in the filling line 22 configured as described above.
  • the filling-side check valve 12 allows the flow of high-pressure gas flowing from the merging point 23 of the filling line 22 and the output line 21 to the high-pressure tank 2 through the filling line 22, and in the opposite direction, that is, filling from the high-pressure tank 2.
  • the flow of the high-pressure gas flowing through the line 22 to the junction 23 is prevented.
  • the output side filter 13 is interposed on the high pressure tank 2 side from the junction 23.
  • the output-side filter 13 is configured in a sponge shape or a mesh shape, and captures contamination (foreign matter) contained in the high-pressure gas. Similar to the output side filter 13, the filling side filter for capturing the contamination contained in the high pressure gas flowing from the merging point 23 through the filling line 22 to the high pressure tank 2 is used as the merging point 23 and the filling side check valve. 12 may be provided. In the output line 21, the valve device 16 is interposed between the output side filter 13 and the junction 23.
  • the valve device 16 is a valve device in which the electromagnetic valve 14 and the output side check valve 15 are integrally formed.
  • the electromagnetic valve 14 opens and closes the output line 21 according to whether or not a current (or voltage) is applied.
  • the output-side check valve 15 allows the flow of high-pressure gas flowing from the high-pressure tank 2 through the output line 21 to the external connection port 20, and in the reverse direction, that is, from the external connection port 20 through the output line 21. The flow of high-pressure gas flowing through the high-pressure tank 2 is prevented.
  • the valve device 16 can reduce the size of the system 1.
  • a passage (corresponding to a valve hole 32a to be described later) connecting the electromagnetic valve 14 and the output side check valve 15 can be shortened, the pressure loss of the output line 21 is reduced, and the opening / closing operation of the electromagnetic valve 14 is prevented.
  • the responsiveness of the output side check valve 15 can be improved.
  • the valve device 16 includes a housing 31, a seat member 32, a main valve body 33, a pilot valve body 34, an electromagnetic solenoid 35, a check valve body 36, and a check valve side spring member 37.
  • the electromagnetic valve 14 is configured by the housing 31, the seat member 32, the main valve body 33, the pilot valve body 34, and the electromagnetic solenoid 35, and the housing 31, the seat member 32, and the check valve
  • the output check valve 15 is constituted by the body 36 and the check valve side spring member 37. That is, the output side check valve 15 is assembled to the electromagnetic valve 14 by sharing the seat member 32 with the electromagnetic valve 14. Below, the structure and operation
  • a housing 31 provided in the electromagnetic valve 14 is a part of the valve block 11 and has an inflow port 31a and an outflow port 31b.
  • the inflow port 31 a is connected to the high pressure tank 2, and the outflow port 31 b is connected to the external connection port 20 through the junction 23.
  • the housing 31 is formed with a valve body hole 31c extending along the axis L1, and the two ports 31a and 31b are connected to the valve body hole 31c via the inflow passage 31d and the outflow passage 31e, respectively. ing.
  • the valve body hole 31c is formed in a substantially circular cross section, and the seat member 32 is fitted in a sealed state in an intermediate portion of the inner peripheral portion of the housing 31 that defines the valve body hole 31c. . Further, a step 31f is formed in the intermediate portion, and the hole diameter of the opening side portion (upper portion in FIG. 2) of the valve body hole 31c is reduced by the step 31f to the bottom side portion (lower portion in FIG. 2). It is larger than the hole diameter.
  • the sheet member 32 is positioned above the step 31f and supported by contacting the lower end of the sheet member 32 to the step 31f.
  • the sheet member 32 supported in this manner is formed in a substantially cylindrical shape, and has a valve hole 32a extending along the axis.
  • An annular projecting piece 41 is formed at one end of the seat member 32 so as to surround one opening of the valve hole 32a.
  • the seat member 32 is opposed to the projecting piece 41 from the seat member 32 of the valve body hole 31c.
  • a main valve element 33 is inserted on the upper side.
  • the main valve body 33 is formed in a substantially bottomed cylindrical shape, and has a closed position in which the bottom portion is seated on the protruding piece 41 to close the valve hole 32a, and an open position in which the valve hole 32a is opened away from the protruding piece 41.
  • the main valve body 33 has an outer peripheral portion on the bottom side smaller in diameter than the outer peripheral portion on the opening end side, and an annular valve space 43 between the outer peripheral portion and the inner peripheral portion of the housing 31. Is formed.
  • the valve space 43 is connected to the inflow passage 31d, and an orifice (not shown) formed between the protruding piece 41 and the bottom of the main valve body 33 when the main valve body 33 is located at the open position. It connects with the valve hole 32a via.
  • the solenoid valve side portion of the valve passage 38 is constituted by the valve hole 32a, the valve space 43, and the inflow passage 31d.
  • a groove (not shown) extending in the axial direction is formed in the outer peripheral portion of the base end side portion of the main valve body 33, and the valve space 43 is in the main valve body 33 by this groove. It is connected to the inner hole 33b.
  • a communication passage 33 a is formed at the bottom of the main valve body 33. The communication passage 33a extends along the axis of the main valve body 33 so as to communicate between the inside and the outside of the main valve body 33.
  • the inner hole 33b of the main valve body 33 can be connected to the valve hole 32a.
  • the tip end portion of the pilot valve body 34 is inserted into the inner hole 33b of the main valve body 33 so as to be relatively movable in the axial direction.
  • the pilot valve body 34 is formed in a substantially cylindrical shape, and has a tapered portion 34a at the tip thereof.
  • the taper portion 34a has a taper shape protruding toward the main valve body 33, and is seated on a seat portion 33c formed around the inner opening (that is, the upper opening) of the communication passage 33a.
  • the passage 33a is closed.
  • a through hole 34b extending in the radial direction is formed in the tip side portion of the pilot valve body 34, and a connecting pin 44 is inserted into the through hole 34b.
  • the connecting pin 44 extends in the radial direction of the pilot valve body 34, and both ends thereof are fitted and fixed to the main valve body 33. Thereby, the main valve body 33 and the pilot valve body 34 are connected by the connection pin 44.
  • the connecting pin 44 is formed to have a smaller diameter than the through hole 34 b, and the pilot valve body 34 can move relative to the main valve body 33 in the axial direction.
  • the pilot valve body 34 moves relative to the main valve body 33 upward, the taper portion 34a is detached from the seat portion 33c, and the communication passage 33a is opened.
  • the remaining portion of the pilot valve body 34 configured in this way is formed to have a larger diameter than the distal end portion, and the proximal end portion protrudes from the housing 31.
  • An electromagnetic solenoid 35 is externally provided on the outer peripheral portion of the protruding proximal end portion.
  • the electromagnetic solenoid 35 which is a valve body driving means, applies an exciting force (driving force) to the pilot valve body 34 so as to pull the pilot valve body 34 in the open position direction (upward in FIG. 2). 31 is fixed. More specifically, the electromagnetic solenoid 35 includes a solenoid case 51, a bobbin 52, a coil wire 53, a guide member 54, and a fixed magnetic pole 55.
  • the solenoid case 51 is formed in a substantially cylindrical shape, and is fixed to the housing 31 so that one opening thereof is connected to the valve body hole 31c.
  • inwardly extending flanges 51 a and 51 b extending inward in the radial direction are formed in the openings on both sides of the solenoid case 51 over the entire circumference.
  • a substantially cylindrical coil storage space 51c is formed between the inward flanges 51a and 51b, and the bobbin 52 is stored in the coil storage space 51c.
  • the bobbin 52 is formed in a substantially cylindrical shape, and a coil wire 53 is wound around the outer peripheral surface thereof.
  • the coil wire 53 is electrically connected to a controller (not shown).
  • a base end portion of the pilot valve body 34 is inserted in the inner peripheral portion of the bobbin 52, and a guide member is provided between the base end portion of the pilot valve body 34 and the inner peripheral portion of the bobbin 52. 54 is interposed.
  • the guide member 54 is a substantially cylindrical member. One end side of the guide member 54 protrudes from one opening of the solenoid case 51 and extends to the valve body hole 31c, and the pilot valve body 34 inserted therein passes through the guide member 54. It can move in the axial direction.
  • a fixed magnetic pole 55 is fitted into the other opening of the solenoid case 51.
  • the fixed magnetic pole 55 is a substantially disk-shaped member made of a magnetic material, and is fixed to the other opening so as to close the other opening of the solenoid case 51.
  • the fixed magnetic pole 55 faces the base end of the pilot valve body 34, and an electromagnetic valve side spring member 56 is interposed between the pilot valve body 34 and the fixed magnetic pole 55.
  • the solenoid valve side spring member 56 biases the main valve body 33 in the direction of the closed position via the pilot valve body 34.
  • the pilot valve body 34 when a current is applied to the coil wire 53 by the controller, the pilot valve body 34 is excited and attracted to the fixed magnetic pole 55, and moves to the upper side (that is, the fixed magnetic pole 55 side). . That is, by applying a current to the coil wire 53, an exciting force against the urging force of the solenoid valve side spring member 56 is generated, and the pilot valve body 34 is moved to the fixed magnetic pole 55 side. At this time, the internal pressure of the valve hole 32a is lower than the internal pressure of the internal hole 33b of the main valve body 33, and the main valve body 33 is pressed against the protruding piece 41 by the pressure. Only the possible pilot valve element 34 moves to the fixed magnetic pole 55 side.
  • the tapered portion 34a of the pilot valve body 34 is separated from the seat portion 33c, and the communication passage 33a is opened.
  • the inflow passage 31d and the valve hole 32a are connected via the valve space 43, the groove on the outer peripheral portion of the main valve body 33, the inner hole 33b of the main valve body 33 and the communication passage 33a, and the high pressure tank 2 is connected to the valve hole 32a.
  • the high pressure gas from is led and the internal pressure increases.
  • the pilot valve body 34 When the pilot valve body 34 further moves to the fixed magnetic pole 55 side, the pilot valve body 34 hits the connection pin 44 and pulls the main valve body 33 in the open position direction via the connection pin 44. At this time, since the internal pressure of the valve hole 32a is increased, the main valve body 33 can be pulled with a small excitation force. By pulling in the open position direction, the main valve element 33 is separated from the protruding piece 41 and one opening of the valve hole 32a is opened, that is, the electromagnetic valve side portion of the valve passage 38 is opened. As a result, the high-pressure gas guided from the high-pressure tank 2 through the inflow port 31a flows through the inflow passage 31d and the valve space 43 to the valve hole 32a.
  • the pilot valve body 34 moves downward (that is, the seat member 32 side) because it is urged by the solenoid valve side spring member 56, and accordingly, The valve body 33 moves in the direction of the closed position.
  • the main valve element 33 is seated on the protruding piece 41
  • the pilot valve element 34 is seated on the seat portion 33c, and one opening of the valve hole 32a and the communication passage 33a are closed. That is, the solenoid valve side portion of the valve passage 38 is closed.
  • one opening of the valve hole 32 a is opened and closed according to whether or not a current is applied to the electromagnetic solenoid 35.
  • An output-side check valve 15 is provided near the other opening of the valve hole 32a on the side opposite to the one opening thus opened and closed, and the check valve of the output-side check valve 15 is provided.
  • the body 36 can block the other opening of the valve hole 32a.
  • the check valve body 36 of the output-side check valve 15 has a generally bottomed cylindrical shape, and the side surface portion of the bottom portion is tapered.
  • a valve seat 32b is formed around the other opening of the valve hole 32a, and the bottom portion 36a of the check valve body 36 has its side surface seated on the valve seat 32b and the other opening of the valve hole 32a. It is inserted in the valve body hole 31c and provided in the housing 31 so that it can move between a blocking position for closing the valve seat and an allowable position for opening the valve hole 32a away from the valve seat 32b.
  • the bottom side portion of the check valve body 36 is formed to have a smaller diameter than the opening end side portion, and a cylindrical valve space 61 is formed around the bottom side portion.
  • the valve space 61 is connected to the valve hole 32a when the check valve body 36 is located at the allowable position.
  • the valve space 61 is connected to a communication passage 62 formed inside the check valve body 36, and the communication passage 62 is connected to an inner hole 36 b of the check valve body 36.
  • the inner hole 36b is connected to the outflow passage 31e via the valve element hole 31c.
  • valve space 61 is connected to the outflow passage 31e through the communication passage 62 and the inner hole 36b, and is formed by the valve hole 32a, the valve space 61, the communication passage 62, the inner hole 36b, and the outflow passage 31e.
  • a check valve side portion of the valve passage 38 is configured.
  • a check valve side spring member 37 is accommodated in the inner hole 36 b of the check valve body 36.
  • the check valve side spring member 37 which is an urging member, urges the check valve body 36 toward the blocking position.
  • the output-side check valve 15 configured as described above is a high-pressure gas (upstream side of the valve passage 38) that guides the acting force against the biasing force of the check valve-side spring member 37 to the valve hole 32 a of the seat member 32. Gas). Therefore, when the internal pressure of the valve hole 32a rises and the acting force becomes larger than the urging force of the check valve side spring member 37, the check valve body 36 moves away from the valve seat 32b to an allowable position and moves to the valve hole. The other opening of 32a is opened, that is, the check valve side portion of the valve passage 38 is opened. Thereby, the high-pressure gas led to the valve hole 32a is led to the outflow passage 31e through the valve space 61 and the inner hole 36b. That is, by applying a current to the electromagnetic valve 14, the entire valve passage 38 is opened, and the high-pressure gas in the high-pressure tank 2 is guided to the external connection port 20 through the valve passage 38.
  • the high pressure gas is filled, the high pressure gas is led from the external connection port 20 to the outflow passage 31e, and the internal pressure of the inner hole 36b becomes higher than the internal pressure of the valve hole 32a.
  • the internal pressure of the inner hole 36b gives an acting force in the direction toward the blocking position to the check valve body 36.
  • the check valve body 36 The valve moves to the blocking position, sits on the valve seat 32b, and closes the valve hole 32a. Therefore, the high pressure gas guided to the outflow passage 31e during filling can be prevented from flowing back to the valve hole 32a, and the backflowed high pressure gas further pushes the main valve body 33 to the open position to open the valve passage 38. Backflow to the inflow port 31a can be prevented. That is, it is possible to prevent the high pressure gas from flowing back through the output line 21 during filling.
  • valve device 16 prevents bidirectional flow in the direction from the inflow port 31a to the outflow port 31b and in the direction from the outflow port 31b to the inflow port 31a in a normal state where no current is applied to the electromagnetic solenoid 35. can do.
  • the valve device 16 allows a flow in the direction from the inflow port 31a to the outflow port 31b, and prevents a reverse flow in the direction from the outflow port 31b to the inflow port 31a. It has become.
  • the system 1 using such a valve device 16 operates as follows.
  • the valve passage 38 of the valve device 16 is opened by applying a current to the electromagnetic valve 14 by the controller. Thereby, the front and back of the valve device 16 in the output line 21 are connected, and the output line 21 is opened.
  • the output line 21 is opened, the high-pressure gas stored in the high-pressure tank 2 is guided to the external connection port 20 through the output-side filter 13 and further output to the fuel consumer via the external connection port 20. Consumed by the fuel consumer.
  • the contamination contained in the high-pressure gas can be captured by passing the high-pressure gas through the output side filter 13, and the contamination can be prevented from reaching the fuel consumer.
  • the filling side check valve 12 is interposed in the filling line 22, high pressure gas is not output from the filling line 22.
  • the high-pressure gas when the high-pressure gas is supplied to the filling port, the high-pressure gas is guided to the filling line 22 and the output line 21 via the external connection port 20.
  • the high pressure gas guided to the filling line 22 operates the filling side check valve 12 to open the filling line 22 and flows to the high pressure tank 2.
  • the high-pressure tank 2 is filled with the high-pressure gas.
  • the high-pressure gas guided to the output line 21 is guided to the outflow port 31b of the output-side check valve 15 and holds the check valve body 36 in the shut-off position.
  • the valve passage 38 can be closed before the electromagnetic valve 14, and high pressure gas can be prevented from flowing back to the electromagnetic valve 14 during filling.
  • the output line 21 is closed by closing the valve passage 38, and the flow of the high-pressure gas that flows back to the high-pressure tank 2 through the output line 21 can be prevented.
  • the output line 21 is closed by closing the valve passage 38, and the flow of the high-pressure gas that flows back to the high-pressure tank 2 through the output line 21 can be prevented.
  • the valve device 16 is not limited to the shape as described above, and may have a shape as shown in FIGS. That is, as shown in FIG. 3, the valve device 16 has a front end portion of the main valve body 33A formed in a tapered shape, and the front end portion is seated by being partially fitted to the opening end portion of the valve hole 32a of the seat member 32A. Thus, the main valve body 33A may be configured to close the valve hole 32a. Further, as shown in FIG. 4, the valve device 16 is configured such that a projecting piece 33d is formed around the opening on the pilot valve body 34B side of the communication passage 33a, and the pilot valve body 34B is seated on the projecting piece 33d. May be. As shown in FIG.
  • the outer diameter of the tapered portion of the pilot valve body 34C is formed larger than the hole diameter of the communication passage 33a, and the pilot valve body 34C is seated around the opening of the communication passage 33a. It may be configured as follows. Further, as shown in FIG. 6, in the valve device 16, a protrusion 41D is formed around an opening on the check valve body 36D side of the valve hole 32a in the seat member 32D, and the check valve body is formed on the protrusion 41D. The bottom 36a of 36D may be seated and configured to close the valve hole 32a.
  • the electromagnetic valve 14 that drives the valve element 33 by the electromagnetic solenoid 35 is employed, but the actuator that drives the valve element 33 is not limited to the electromagnetic solenoid 35.
  • a force motor may be used, or a piezoelectric actuator that generates a driving force when a voltage is applied may be used as long as the valve body 33 can be linearly moved in the axial direction thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fluid-Driven Valves (AREA)
  • Check Valves (AREA)

Abstract

L'invention concerne une vanne (16) pourvue d'un corps (31) à l'intérieur duquel se trouve un siège (32), un élément de vanne principal (33), une électrovanne (35) et un élément de vanne (36) anti-refoulement. L'électrovanne (35) entraîne l'élément de vanne principal (33) vers une position ouverte pour ouvrir un passage (38) de la vanne, et le gaz provenant d'un orifice d'admission (31a) pousse l'élément de vanne principal (33) vers une position fermée pour placer ce dernier sur un siège (32) et fermer le passage (38) de la vanne. L'élément de vanne anti-refoulement (36) peut se déplacer entre une position de fermeture dans laquelle il est placé sur le siège (32), et une position de passage d'écoulement au niveau d'une séparation depuis le siège (32). L'élément de vanne anti-refoulement (36) est conçu pour être poussé vers la position de fermeture par le gaz provenant d'un orifice d'évacuation (31b) de façon à fermer le passage (38) de la vanne.
PCT/JP2012/005395 2011-09-02 2012-08-28 Vanne bidirectionnelle normalement fermée par un gaz et système de remplissage/évacuation de gaz haute pression associé à cette vanne WO2013031191A1 (fr)

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JP2011191809A JP2013053660A (ja) 2011-09-02 2011-09-02 双方向ノーマルクローズ形ガス用弁装置、及びそれを備える高圧ガス充填・出力システム
JP2011-191809 2011-09-02

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Cited By (6)

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JP2019203108A (ja) * 2018-05-25 2019-11-28 旭化成株式会社 微細セルロース含有樹脂組成物
WO2022063493A1 (fr) * 2020-09-23 2022-03-31 Robert Bosch Gmbh Dispositif de réservoir pour stocker un milieu gazeux, comprenant un dispositif de soupape
WO2023285117A1 (fr) * 2021-07-12 2023-01-19 Robert Bosch Gmbh Vanne d'arrêt et procédé de commande pour commander un écoulement de gaz sous pression à partir d'un réservoir sous pression
US20240019083A1 (en) * 2020-09-23 2024-01-18 Robert Bosch Gmbh Tank device with a valve device
WO2024028013A1 (fr) * 2022-08-03 2024-02-08 Robert Bosch Gmbh Ensemble soupape pour un réservoir de gaz combustible, réservoir de gaz combustible comprenant un ensemble soupape et système de réservoir de gaz combustible
US12078297B2 (en) 2020-09-23 2024-09-03 Robert Bosch Gmbh Tank device for storing a gaseous medium, comprising a valve device

Families Citing this family (1)

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CN105605010B (zh) * 2015-12-15 2017-10-13 南昌工程学院 一种磁致伸缩悬臂梁驱动的流量控制阀及调节方法

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JP2003240148A (ja) * 2002-02-13 2003-08-27 Aisan Ind Co Ltd タンク内に装着される電磁弁
JP2005083533A (ja) * 2003-09-10 2005-03-31 Kawasaki Precision Machinery Ltd 電磁弁装置
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JP2009540252A (ja) * 2006-06-16 2009-11-19 キュレイターズ オブ ザ ユニバーシティー オブ ミズーリ 流体制御弁
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Publication number Priority date Publication date Assignee Title
JP2019203108A (ja) * 2018-05-25 2019-11-28 旭化成株式会社 微細セルロース含有樹脂組成物
WO2022063493A1 (fr) * 2020-09-23 2022-03-31 Robert Bosch Gmbh Dispositif de réservoir pour stocker un milieu gazeux, comprenant un dispositif de soupape
US20240019083A1 (en) * 2020-09-23 2024-01-18 Robert Bosch Gmbh Tank device with a valve device
US12078297B2 (en) 2020-09-23 2024-09-03 Robert Bosch Gmbh Tank device for storing a gaseous medium, comprising a valve device
WO2023285117A1 (fr) * 2021-07-12 2023-01-19 Robert Bosch Gmbh Vanne d'arrêt et procédé de commande pour commander un écoulement de gaz sous pression à partir d'un réservoir sous pression
WO2024028013A1 (fr) * 2022-08-03 2024-02-08 Robert Bosch Gmbh Ensemble soupape pour un réservoir de gaz combustible, réservoir de gaz combustible comprenant un ensemble soupape et système de réservoir de gaz combustible

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