JP2007242304A - Valve, valve control device, and fuel cell system - Google Patents

Valve, valve control device, and fuel cell system Download PDF

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Publication number
JP2007242304A
JP2007242304A JP2006060128A JP2006060128A JP2007242304A JP 2007242304 A JP2007242304 A JP 2007242304A JP 2006060128 A JP2006060128 A JP 2006060128A JP 2006060128 A JP2006060128 A JP 2006060128A JP 2007242304 A JP2007242304 A JP 2007242304A
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JP
Japan
Prior art keywords
valve
tank
injector
fuel cell
gas
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP2006060128A
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Japanese (ja)
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JP2007242304A5 (en
Inventor
Masahiro Takeshita
昌宏 竹下
Jinsei Ishidoya
尽生 石戸谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
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Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2006060128A priority Critical patent/JP2007242304A/en
Priority to PCT/JP2007/052438 priority patent/WO2007102297A1/en
Priority to US12/223,484 priority patent/US20090014089A1/en
Priority to CNA2007800080108A priority patent/CN101395423A/en
Priority to DE112007000513T priority patent/DE112007000513T5/en
Publication of JP2007242304A publication Critical patent/JP2007242304A/en
Publication of JP2007242304A5 publication Critical patent/JP2007242304A5/ja
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • F16K31/02—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
    • F16K31/0648—One-way valve the armature and the valve member forming one element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04228—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during shut-down
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2205/0305—Bosses, e.g. boss collars
    • 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
    • F17C2205/0311—Closure means
    • F17C2205/0317—Closure means fusing or melting
    • 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
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    • 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
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    • F17C2205/0332—Safety valves or pressure relief valves
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    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
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    • 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
    • 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
    • F17C2205/0338—Pressure regulators
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
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    • 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
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    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
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    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
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    • 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
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    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/015—Facilitating maintenance
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • 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
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • 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
    • 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
    • F17C2270/0173—Railways
    • 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
    • F17C2270/0184—Fuel cells
    • 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
    • F17C2270/05—Applications for industrial use
    • 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
    • F17C2270/05—Applications for industrial use
    • F17C2270/0518—Semiconductors
    • 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
    • F17C2270/07—Applications for household use
    • F17C2270/0763—Fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • 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
    • 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
    • Y02E60/50—Fuel cells

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  • Fuel Cell (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve and a valve control device capable of adjusting in good precision the discharge flow-rate of fluid to the outside of a tank, and to provide a fuel cell system. <P>SOLUTION: The valve is constructed capable of adjusting flow-rate of fluid to the secondary side. The secondary side is installed in the tank so as to become a discharge side of the fluid from inside the tank, and the discharge flow-rate of the fluid from inside the tank can be adjusted by a duty control. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、二次側への流体の流量を調整可能に構成されたバルブ、バルブ制御装置及び燃料電池システムに関する。   The present invention relates to a valve, a valve control device, and a fuel cell system configured to be able to adjust a flow rate of a fluid to a secondary side.

従来、タンクに貯蔵した燃料を燃料消費装置に供給する供給システムが広く知られている。例えば、特許文献１に記載の供給システムでは、タンクに貯蔵した水素化物流体を半導体製造設備に供給している。このタンクには、タンク外に供給される水素化物流体の圧力を調整する機械式のレギュレータが設けられている。
特開２００５−４２９２４号公報 Conventionally, a supply system for supplying fuel stored in a tank to a fuel consuming device is widely known. For example, in the supply system described in Patent Document 1, a hydride fluid stored in a tank is supplied to a semiconductor manufacturing facility. This tank is provided with a mechanical regulator that adjusts the pressure of the hydride fluid supplied to the outside of the tank.
JP-A-2005-42924

しかしながら、タンクに付随するレギュレータでは、タンク外への燃料の放出流量を精緻に調整することができなかった。また、機械式のレギュレータであるため、応答性が比較的低かった。   However, the regulator attached to the tank cannot precisely adjust the fuel discharge flow rate to the outside of the tank. Moreover, since it is a mechanical regulator, the response was relatively low.

本発明は、タンク外への流体の放出流量を精度良く調整できるバルブ、バルブ制御装置及び燃料電池システムを提供することを目的とする。   An object of this invention is to provide the valve | bulb which can adjust the discharge | release flow volume of the fluid out of a tank accurately, a valve control apparatus, and a fuel cell system.

上記目的を達成するための本発明のバルブは、二次側への流体の流量を調整可能に構成されたバルブであって、二次側がタンク内からの流体の放出側となるようにタンクに設けられ、タンク内からの流体の放出流量をデューティ制御により調整可能に構成されたものである。   In order to achieve the above object, the valve of the present invention is a valve configured to be able to adjust the flow rate of the fluid to the secondary side, and in the tank so that the secondary side becomes the fluid discharge side from the inside of the tank. It is provided and configured to be able to adjust the fluid discharge flow rate from the tank by duty control.

この構成によれば、流体の流量をデューティ制御により調整可能なバルブをタンクに設けているので、タンク外への流体の放出流量を精度良く調整することができる。   According to this configuration, since the tank is provided with the valve capable of adjusting the fluid flow rate by duty control, the fluid discharge flow rate to the outside of the tank can be accurately adjusted.

ここで、バルブをタンクに設ける構成としては、例えばバルブをタンクの内部に配置する構成、バルブをタンクの構成要素に直接的に又は間接的に取り付けながらタンクの外部に配置する構成、又は、バルブの一部をタンク内に配置し且つバルブの他の部分をタンク外に配置する構成を採用できる。これらのバルブの配置方法としては、バルブをタンクの口金に取り付けてもよいし、あるいは、バルブ及びその他のバルブをバルブアッセンブリとして構成し、バルブアッセンブリをタンクの口金にねじ込むように取り付けてもよい。   Here, as a configuration in which the valve is provided in the tank, for example, a configuration in which the valve is disposed inside the tank, a configuration in which the valve is directly or indirectly attached to the component of the tank, and is disposed outside the tank, or a valve It is possible to adopt a configuration in which a part of the valve is disposed in the tank and the other part of the valve is disposed outside the tank. As a method of arranging these valves, the valves may be attached to the base of the tank, or the valves and other valves may be configured as a valve assembly so that the valve assembly is screwed into the base of the tank.

本発明のバルブは、放出流量をデューティ制御により調整する流量調整機構を有し、流量調整機構は、タンク内からの流体の放出を遮断可能に構成されていることが好ましい。   The valve of the present invention preferably has a flow rate adjustment mechanism that adjusts the discharge flow rate by duty control, and the flow rate adjustment mechanism is preferably configured to be able to block the release of fluid from the tank.

この構成によれば、バルブを遮断弁としても機能させることができる。   According to this configuration, the valve can also function as a shutoff valve.

ここで、バルブの流量調整機構は、弁体と、弁体が離接可能な弁座と、弁体を弁座に対して離接方向に移動させるソレノイドと、を備えることができる。この構成では、通常、バルブの軸線方向は、弁体の離接方向に合致する。また、弁座は、バルブの基体又は弁体よりも弾性を有することが好ましく、こうすることで、バルブの遮断弁としての機能を高めることができる。さらに、バルブは、弁体がタンクの圧力（一次圧）により弁座に当接して、流体の流出を遮断する構成であることが好ましい。   Here, the flow rate adjusting mechanism of the valve can include a valve body, a valve seat to which the valve body is detachable, and a solenoid that moves the valve body in a detaching direction with respect to the valve seat. In this configuration, normally, the axial direction of the valve coincides with the contact / separation direction of the valve body. Moreover, it is preferable that the valve seat has more elasticity than the base or valve body of the valve, and by doing so, the function of the valve as a shut-off valve can be enhanced. Further, the valve is preferably configured such that the valve body abuts against the valve seat by the pressure (primary pressure) of the tank to block outflow of fluid.

好ましくは、バルブの軸線とタンクの軸線とは、略平行である又は合致する。   Preferably, the valve axis and the tank axis are substantially parallel or coincident.

この構成によれば、バルブを自己清浄し易い構造とし得る。例えばバルブを上記のように構成した場合に、弁体の移動時に発生し得る磨耗粉などのコンタミを、一次側から二次側への流体の流れによって二次側へと排出することが可能となる。   According to this configuration, the valve can be configured to be easily cleaned. For example, when the valve is configured as described above, it is possible to discharge contamination such as abrasion powder that may be generated when the valve body moves to the secondary side by the flow of fluid from the primary side to the secondary side. Become.

一方で、一般に、バルブは全体としてみれば軸線方向に長さを長くとる傾向にある。このため、バルブの軸線方向とタンクの軸線方向とを合致させると、バルブ及びタンクの全体の長さが長くなり易い。   On the other hand, generally, the valve tends to have a long length in the axial direction as a whole. For this reason, if the axial direction of a valve and the axial direction of a tank are made to correspond, the whole length of a valve and a tank tends to become long.

そこで、バルブ及びタンクの全体の長さを比較的短くする観点からすれば、本発明のバルブはタンクのボディよりも外側に位置し、バルブの軸線とタンクの軸線とは略直交する構成であってもよい。   Therefore, from the viewpoint of relatively shortening the overall length of the valve and the tank, the valve of the present invention is located outside the tank body, and the valve axis and the tank axis are substantially orthogonal to each other. May be.

この構成によれば、バルブ及びタンクが設置される設置スペースを大きく占有しないで済むようになる。   According to this configuration, it is not necessary to occupy a large installation space in which the valve and the tank are installed.

本発明の一態様によれば、タンクにはバルブとは別体の主止弁が設けられ、主止弁はバルブの一次側に位置していることが好ましい。   According to one aspect of the present invention, the tank is provided with a main stop valve that is separate from the valve, and the main stop valve is preferably located on the primary side of the valve.

この構成によれば、主止弁を閉じることで、バルブに作用する流体圧を抑制することができる。また、フェールセーフも達成できる。   According to this configuration, the fluid pressure acting on the valve can be suppressed by closing the main stop valve. Fail safe can also be achieved.

この場合、主止弁がタンク口金よりもタンク内側に位置し、且つバルブがタンクのボディよりも外側に位置することが好ましい。   In this case, it is preferable that the main stop valve is located on the inner side of the tank than the tank base, and the valve is located on the outer side of the tank body.

上記目的を達成するための本発明のバルブ制御装置は、上記した本発明のバルブをデューティ制御するものである。   In order to achieve the above object, a valve control device of the present invention performs duty control on the above-described valve of the present invention.

この構成によれば、バルブを適切にデューティ制御でき、タンク外への流体の放出流量を精緻に調整することができる。   According to this configuration, the valve can be appropriately duty-controlled, and the discharge flow rate of the fluid to the outside of the tank can be precisely adjusted.

上記目的を達成するための本発明の燃料電池システムは、上記した本発明のバルブ及びタンクと、酸化ガス及び燃料ガスが供給される燃料電池とを備えた燃料電池システムであって、タンク内の前記流体は燃料ガスである。   In order to achieve the above object, a fuel cell system of the present invention is a fuel cell system comprising the above-described valve and tank of the present invention, and a fuel cell to which an oxidizing gas and a fuel gas are supplied. The fluid is a fuel gas.

この構成によれば、バルブにより放出流量が調整された燃料ガスを燃料電池に供給することができる。これにより、燃料電池における燃料ガスの消費量に対応して、タンクから所望の燃料ガスを応答性良く供給することができる。   According to this structure, the fuel gas whose discharge flow rate is adjusted by the valve can be supplied to the fuel cell. Thereby, the desired fuel gas can be supplied from the tank with high responsiveness in accordance with the consumption amount of the fuel gas in the fuel cell.

本発明のバルブ、バルブ制御装置及び燃料電池システムによれば、タンク外への流体の放出流量を精度良く調整することができる。   According to the valve, the valve control device, and the fuel cell system of the present invention, the fluid discharge flow rate to the outside of the tank can be accurately adjusted.

以下、添付図面を参照して、本発明のバルブを備えた燃料電池システムについて説明する。この燃料電池システムは、デューティ制御されるバルブをタンクに設け、タンク外への燃料ガスの放出流量を調整するようにしたものである。以下では、デューティ制御されるバルブとして、インジェクタを例に説明する。   Hereinafter, a fuel cell system including a valve of the present invention will be described with reference to the accompanying drawings. In this fuel cell system, a duty-controlled valve is provided in a tank to adjust the flow rate of fuel gas discharged to the outside of the tank. Hereinafter, an injector will be described as an example of a valve that is duty controlled.

＜第１実施形態＞
図１は、燃料電池システムの構成図である。
燃料電池システム１は、燃料電池２と、酸化ガスとしての空気（酸素）を燃料電池２に供給する酸化ガス配管系３と、燃料ガスとしての水素ガスを燃料電池２に供給する燃料ガス配管系４と、システム全体を統括制御する制御部７と、を備えている。 <First Embodiment>
FIG. 1 is a configuration diagram of a fuel cell system.
The fuel cell system 1 includes a fuel cell 2, an oxidizing gas piping system 3 that supplies air (oxygen) as an oxidizing gas to the fuel cell 2, and a fuel gas piping system that supplies hydrogen gas as a fuel gas to the fuel cell 2. 4 and a control unit 7 that performs overall control of the entire system.

燃料電池２は、例えば固体高分子電解質型で構成され、多数の単セルを積層したスタック構造を備えている。燃料電池２の単セルは、イオン交換膜からなる電解質の一方の面に空気極を有し、他方の面に燃料極を有し、さらに空気極及び燃料極を両側から挟みこむように一対のセパレータを有している。一方のセパレータの燃料ガス流路に燃料ガスが供給され、他方のセパレータの酸化ガス流路に酸化ガスが供給され、このガス供給により燃料電池２は電力を発生する。   The fuel cell 2 is formed of, for example, a solid polymer electrolyte type and has a stack structure in which a large number of single cells are stacked. A single cell of the fuel cell 2 has an air electrode on one surface of an electrolyte made of an ion exchange membrane, a fuel electrode on the other surface, and a pair of separators so as to sandwich the air electrode and the fuel electrode from both sides. have. The fuel gas is supplied to the fuel gas flow path of one separator and the oxidizing gas is supplied to the oxidizing gas flow path of the other separator, and the fuel cell 2 generates electric power by this gas supply.

酸化ガス配管系３は、燃料電池２に供給される酸化ガスが流れる供給路１１と、燃料電池２から排出された酸化オフガスが流れる排出路１２と、を有している。供給路１１には、フィルタ１３を介して酸化ガスを取り込むコンプレッサ１４と、コンプレッサ１４により圧送される酸化ガスを加湿する加湿器１５と、が設けられている。排出路１２を流れる酸化オフガスは、背圧調整弁１６を通って加湿器１５で水分交換に供された後、最終的に排ガスとしてシステム外の大気中に排気される。   The oxidizing gas piping system 3 has a supply path 11 through which the oxidizing gas supplied to the fuel cell 2 flows, and a discharge path 12 through which the oxidizing off gas discharged from the fuel cell 2 flows. The supply path 11 is provided with a compressor 14 that takes in the oxidizing gas via the filter 13, and a humidifier 15 that humidifies the oxidizing gas fed by the compressor 14. The oxidizing off-gas flowing through the discharge path 12 is subjected to moisture exchange by the humidifier 15 through the back pressure regulating valve 16, and is finally exhausted into the atmosphere outside the system as exhaust gas.

燃料ガス配管系４は、燃料供給源としての水素タンク２１と、水素タンク２１から燃料電池２に供給される水素ガスが流れる供給路２２と、燃料電池２から排出された水素オフガス（燃料オフガス）を供給路２２の合流点Ａに戻すための循環路２３と、循環路２３内の水素オフガスを供給路２２に圧送するポンプ２４と、循環路２３に分岐接続された排出路２５と、を有している。   The fuel gas piping system 4 includes a hydrogen tank 21 as a fuel supply source, a supply path 22 through which hydrogen gas supplied from the hydrogen tank 21 to the fuel cell 2 flows, and hydrogen offgas (fuel offgas) discharged from the fuel cell 2. A circulation path 23 for returning the gas to the junction A of the supply path 22, a pump 24 for pumping the hydrogen off-gas in the circulation path 23 to the supply path 22, and a discharge path 25 branched and connected to the circulation path 23. is doing.

水素タンク２１は、例えば３５ＭＰａ又は７０ＭＰａの水素ガスを貯留可能に構成されている。水素タンク２１の主止弁２６を開くと、供給路２２に水素ガスが流出する。その後、水素ガスは、インジェクタ２９により流量及び圧力を調整された後、さらに下流において機械式の調圧弁２７その他の減圧弁により、最終的に例えば２００ｋＰａ程度まで減圧されて、燃料電池２に供給される。主止弁２６及びインジェクタ２９は、図１において点線の枠線で示すバルブアッセンブリ３０に組み込まれ、バルブアッセンブリ３０が水素タンク２１に接続されている（詳細は後述する）。   The hydrogen tank 21 is configured to be able to store, for example, 35 MPa or 70 MPa of hydrogen gas. When the main stop valve 26 of the hydrogen tank 21 is opened, hydrogen gas flows out to the supply path 22. Thereafter, the flow rate and pressure of the hydrogen gas are adjusted by the injector 29, and then the pressure is further reduced to, for example, about 200 kPa by the mechanical pressure regulating valve 27 and other pressure reducing valves downstream, and supplied to the fuel cell 2. The The main stop valve 26 and the injector 29 are incorporated in a valve assembly 30 indicated by a dotted frame in FIG. 1, and the valve assembly 30 is connected to the hydrogen tank 21 (details will be described later).

供給路２２の合流点Ａの上流側には、遮断弁２８が設けられている。水素ガスの循環系は、供給路２２の合流点Ａの下流側流路と、燃料電池２のセパレータに形成される燃料ガス流路と、循環路２３とを順番に連通することで構成されている。排出路２５上のパージ弁３３が燃料電池システム１の稼動時に適宜開弁することで、水素オフガス中の不純物が水素オフガスと共に図示省略した水素希釈器に排出される。パージ弁３３の開弁により、循環路２３内の水素オフガス中の不純物の濃度が下がり、循環供給される水素オフガス中の水素濃度が上がる。   A shutoff valve 28 is provided on the upstream side of the junction point A of the supply path 22. The hydrogen gas circulation system is configured by sequentially communicating a flow path downstream from the confluence point A of the supply path 22, a fuel gas flow path formed in the separator of the fuel cell 2, and the circulation path 23. Yes. The purge valve 33 on the discharge path 25 is appropriately opened when the fuel cell system 1 is in operation, so that impurities in the hydrogen off gas are discharged together with the hydrogen off gas to a hydrogen diluter (not shown). By opening the purge valve 33, the concentration of impurities in the hydrogen off-gas in the circulation path 23 decreases, and the concentration of hydrogen in the hydrogen off-gas supplied in circulation increases.

制御部７は、内部にＣＰＵ，ＲＯＭ，ＲＡＭを備えたマイクロコンピュータとして構成される。ＣＰＵは、制御プラグラムに従って所望の演算を実行して、インジェクタ２９の流量制御など、種々の処理や制御を行う。ＲＯＭは、ＣＰＵで処理する制御プログラムや制御データを記憶する。ＲＡＭは、主として制御処理のための各種作業領域として使用される。制御部７は、ガス系統（３，４）や図示省略の冷媒系統に用いられる各種の圧力センサや温度センサなどの検出信号を入力し、各構成要素に制御信号を出力する。後述するように、制御部７は、インジェクタ２９をデューティ制御するバルブ制御装置として機能するものである。   The control unit 7 is configured as a microcomputer including a CPU, a ROM, and a RAM inside. The CPU executes a desired calculation according to the control program and performs various processes and controls such as a flow rate control of the injector 29. The ROM stores control programs and control data processed by the CPU. The RAM is mainly used as various work areas for control processing. The control unit 7 inputs detection signals from various pressure sensors and temperature sensors used in the gas system (3, 4) and a refrigerant system (not shown), and outputs a control signal to each component. As will be described later, the control unit 7 functions as a valve control device that controls the duty of the injector 29.

図２は、水素タンク２１に設けられたインジェクタ２９周りの断面図である。
先ず、水素タンク２１について説明する。
水素タンク２１は、水素タンク２１のボディを構成する密閉円筒状のタンク本体１０１と、タンク本体１０１の長手方向の一端部に位置する口金部１０２と、を備えている。タンク本体１０１の内部は、水素ガスを高圧で貯留する貯留空間１０４となっている。タンク本体２は、ガスバリア性を有する内側の樹脂ライナー１０７と、樹脂ライナー１０７の外側を覆うＦＲＰからなるシェル１０８と、の二層構造を有している。 FIG. 2 is a cross-sectional view around the injector 29 provided in the hydrogen tank 21.
First, the hydrogen tank 21 will be described.
The hydrogen tank 21 includes a sealed cylindrical tank body 101 that constitutes the body of the hydrogen tank 21, and a base portion 102 that is positioned at one end of the tank body 101 in the longitudinal direction. The inside of the tank body 101 is a storage space 104 for storing hydrogen gas at a high pressure. The tank body 2 has a two-layer structure of an inner resin liner 107 having gas barrier properties and a shell 108 made of FRP that covers the outer side of the resin liner 107.

口金部１０２（口部）は、例えばステンレスなどの金属で形成され、タンク本体１０１の球面状をした端壁部の中心に設けられている。口金部１０２の内周面に形成されためねじを介して、バルブアッセンブリ３０を口金部１０２にねじ込み接続することができるように構成されている。   The base part 102 (mouth part) is formed of a metal such as stainless steel, for example, and is provided at the center of the spherical end wall part of the tank body 101. The valve assembly 30 is formed on the inner peripheral surface of the base portion 102 and is configured so that the valve assembly 30 can be screwed into the base portion 102 via a screw.

バルブアッセンブリ３０は、水素タンク２１の内外に亘るように設けられ、水素タンク２１におけるガス排出部を構成している。バルブアセンブリ３０は、例えば単一のハウジング３００を有し、ハウジング３００には、上記の主止弁２６及びインジェクタ２９が直列に組み込まれている。本実施形態では、ハウジング３００は、水素タンク２１内部に挿入される第１の領域３０１に主止弁２６を組み込むと共に、水素タンク２１外部に露出する第２の領域３０２にインジェクタ２９を組み込んでいる。ハウジング３００は、例えばＳＵＳやアルミなどの金属により形成されている。   The valve assembly 30 is provided so as to extend inside and outside the hydrogen tank 21, and constitutes a gas discharge part in the hydrogen tank 21. The valve assembly 30 includes, for example, a single housing 300, and the main stop valve 26 and the injector 29 are incorporated in series in the housing 300. In the present embodiment, the housing 300 incorporates the main stop valve 26 in the first region 301 inserted into the hydrogen tank 21 and incorporates the injector 29 in the second region 302 exposed to the outside of the hydrogen tank 21. . The housing 300 is made of metal such as SUS or aluminum.

なお、図２では、本発明の要部であるインジェクタ２９及び主止弁２６を中心に表したが、ハウジング３００には、インジェクタ２９等以外に、安全弁（リリーフ弁、溶栓弁）や逆止弁など他のバルブが設けられてもよい。また、ハウジング３００には、通常、図示省略した水素ガスの充填通路などが形成される。さらに、ハウジング３００は、単一の部材又は複数の部材の組み合わせにより構成されてもよい。また、ハウジング３００は、主止弁２６及びインジェクタ２９のボディ（基体）を兼ねているが、これら２６，２９のボディを別個に形成し、それぞれのボディをハウジング３００に組み付けてもよい。   In FIG. 2, the injector 29 and the main stop valve 26, which are the main parts of the present invention, are mainly shown. However, in addition to the injector 29 and the like, the housing 300 includes a safety valve (relief valve, fusing valve) and a check valve. Other valves such as valves may be provided. The housing 300 is usually formed with a hydrogen gas filling passage (not shown). Furthermore, the housing 300 may be configured by a single member or a combination of a plurality of members. The housing 300 also serves as the body (base) of the main stop valve 26 and the injector 29, but the bodies of these 26 and 29 may be formed separately and each body may be assembled to the housing 300.

ハウジング３００内には、貯留空間１０４と外部の供給路２２とを連通するバルブ内流路３１０が形成されている。バルブ内流路３１０は、貯留空間１０４側から順に、第１流路３１１、第２流路３１２、及び第３流路３１３を連ねて構成されている。第１流路３１１と第２流路３１２との間は、主止弁２６により連通又は遮断される。第２流路３１２はインジェクタ２９の一次側の流路となり、第３流路３１３は、インジェクタ２９の二次側の流路となって、外部の供給路２２に連なっている。   In the housing 300, an in-valve flow path 310 that connects the storage space 104 and the external supply path 22 is formed. The in-valve channel 310 is configured by connecting the first channel 311, the second channel 312, and the third channel 313 in order from the storage space 104 side. The main stop valve 26 communicates or blocks between the first flow path 311 and the second flow path 312. The second flow path 312 is a primary flow path of the injector 29, and the third flow path 313 is a secondary flow path of the injector 29 and is connected to the external supply path 22.

主止弁２６（開閉弁）は、水素タンク２１に対して元弁として機能し、水素タンク２１内から供給路２２への流体（水素ガス）の流動を遮断する。主止弁２６は、電磁弁式の遮断弁で構成されている。主止弁２６は、例えば、ソレノイドの励磁により弁棒３２１（可動子）がその軸方向に進出し、弁棒３２１の先端部の弁体３２２が弁座３２３に当接すると、バルブ内流路３１０を遮断する。一方、ソレノイドの消磁により弁棒３２１が軸方向に退避し、弁体３２２が弁座３２３から離間すると、貯留空間１０４からの水素ガスの流出が許容される。弁棒３２１及び弁体３２２の軸線方向Ｘ―Ｘは、水素タンク２１の軸線方向に合致している。なお、主止弁２６の軸線方向とは、弁体３２２の移動方向を意味し、この場合弁体３２２の軸線方向Ｘ―Ｘに相当する。   The main stop valve 26 (open / close valve) functions as a main valve for the hydrogen tank 21, and blocks the flow of fluid (hydrogen gas) from the hydrogen tank 21 to the supply path 22. The main stop valve 26 is composed of a solenoid valve type shut-off valve. For example, when the valve stem 321 (movable element) advances in the axial direction by excitation of a solenoid and the valve body 322 at the tip end of the valve stem 321 contacts the valve seat 323, the main stop valve 26 has a flow path in the valve. Block 310. On the other hand, when the valve rod 321 is retracted in the axial direction by the demagnetization of the solenoid and the valve body 322 is separated from the valve seat 323, the hydrogen gas is allowed to flow out of the storage space 104. The axial direction XX of the valve stem 321 and the valve body 322 matches the axial direction of the hydrogen tank 21. The axial direction of the main stop valve 26 means the moving direction of the valve body 322, and in this case, corresponds to the axial direction XX of the valve body 322.

インジェクタ２９は、タンク本体１０１の外周面よりも外側に位置し、制御部７に電気的に接続されている。インジェクタ２９は、弁体４０１を電磁駆動力で直接的に所定の駆動周期で駆動して弁座４０２から離隔させることにより、水素ガスの流量や圧力を調整することが可能な電磁駆動式の開閉弁である。インジェクタ２９は、弁体４０１の駆動周期を高応答の領域まで制御できるため、機械式の調圧弁に比べて高い応答性を有している。   The injector 29 is located outside the outer peripheral surface of the tank main body 101 and is electrically connected to the control unit 7. The injector 29 is an electromagnetically driven opening / closing capable of adjusting the flow rate and pressure of hydrogen gas by driving the valve body 401 directly with an electromagnetic driving force at a predetermined driving cycle and separating it from the valve seat 402. It is a valve. Since the injector 29 can control the driving cycle of the valve body 401 to a highly responsive region, the injector 29 has higher responsiveness than a mechanical pressure regulating valve.

インジェクタ２９は、二次側への水素ガスの流量及び圧力を調整可能な流量調整機構を有する。流量調整機構は、大別すると、主弁部分４１０とソレノイド部分４２０とにより構成されている。これら主弁部分４１０及びソレノイド部分４２０は、ハウジング３００の第２領域３０２内に設けられており、水素タンク２１内からの水素ガスの放出流量をデューティ制御により調整する。   The injector 29 has a flow rate adjusting mechanism capable of adjusting the flow rate and pressure of hydrogen gas to the secondary side. The flow rate adjusting mechanism is roughly composed of a main valve portion 410 and a solenoid portion 420. The main valve portion 410 and the solenoid portion 420 are provided in the second region 302 of the housing 300, and adjust the discharge flow rate of hydrogen gas from the hydrogen tank 21 by duty control.

主弁部分４１０は、上記の弁体４０１及び弁座４０２からなる。弁体４０１は、ポペットタイプからなり、金属で形成されている。弁体４０１の軸線方向Ｙ−Ｙは、水素タンク２１の軸線方向Ｘ−Ｘに直交している。なお、インジェクタ２６の軸線方向とは、弁体４０１の移動方向を意味し、この場合弁体４０１の軸線方向Ｙ−Ｙに相当する。   The main valve portion 410 includes the valve body 401 and the valve seat 402 described above. The valve body 401 is of a poppet type and is made of metal. The axial direction YY of the valve body 401 is orthogonal to the axial direction XX of the hydrogen tank 21. The axial direction of the injector 26 means the moving direction of the valve body 401, and in this case, corresponds to the axial direction YY of the valve body 401.

弁座４０２は、シール性及び耐圧性を有する環状の樹脂部材からなり、ハウジング３００（基体）よりも高い弾性率を有している。弁座４０２の中心は、開口しており、二次側に水素ガスを噴射する噴射孔４０４として機能する。噴射孔４０４の開口面積は、弁体４０１の軸方向の位置によって可変される。弁体４０１が弁座４０２に当接した状態では、噴射孔４０４の開口面積はゼロとなり、二次側への水素ガスの流出が遮断される。上記したように、弁座４０２に弾性特性をもたせているため、弁体４０１を弁座４０２に強密着させるように当接させることができ、水素ガスの二次側への流出をシール性良く遮断できる。   The valve seat 402 is made of an annular resin member having sealing properties and pressure resistance, and has a higher elastic modulus than the housing 300 (base). The center of the valve seat 402 is opened and functions as an injection hole 404 for injecting hydrogen gas to the secondary side. The opening area of the injection hole 404 is variable depending on the position of the valve body 401 in the axial direction. When the valve body 401 is in contact with the valve seat 402, the opening area of the injection hole 404 is zero, and the outflow of hydrogen gas to the secondary side is blocked. As described above, since the valve seat 402 has an elastic characteristic, the valve body 401 can be brought into contact with the valve seat 402 so as to be in close contact with each other, and the outflow of hydrogen gas to the secondary side has a good sealing property. Can be blocked.

ソレノイド部分４２０は、Ｉプランジャ型など各種の基本構造で構成されることができ、ここではいわゆる平板型で構成されている。具体的には、ソレノイド部分４２０は、コイル４２１と、鉄心４２２と、弁体４０１と一体形成された平板状のプランジャ４２３と、で構成されている。鉄心４２２とプランジャ４２３との間には、隙間があると共に、弁体４０１と同軸上（Ｙ−Ｙ方向）にスプリング４２５が設けられている。スプリング４２５は、弁体４０１を弁座４０２に向けて付勢する。   The solenoid portion 420 can be configured by various basic structures such as an I plunger type, and is configured by a so-called flat plate type here. Specifically, the solenoid portion 420 includes a coil 421, an iron core 422, and a flat plate-like plunger 423 formed integrally with the valve body 401. There is a gap between the iron core 422 and the plunger 423, and a spring 425 is provided coaxially with the valve body 401 (YY direction). The spring 425 biases the valve body 401 toward the valve seat 402.

インジェクタ２９では、コイル４２１に通電することで、磁化された鉄心４２２がプランジャ４２３及び弁体４０１を吸引する。これにより、弁体４０１が、スプリング４２５に抗して弁座４０２から離れる方向に移動する。逆に、コイル４２１への通電を停止、すなわちソレノイド部４２０を消磁すると、弁体４０１がスプリング４２５のバネ力により弁座４０２に当接する方向に移動する。コイル４２１に供給される電流は、パルス状励磁電流である。   In the injector 29, the magnetized iron core 422 attracts the plunger 423 and the valve body 401 by energizing the coil 421. As a result, the valve body 401 moves in a direction away from the valve seat 402 against the spring 425. Conversely, when energization of the coil 421 is stopped, that is, when the solenoid portion 420 is demagnetized, the valve body 401 moves in a direction in which it abuts on the valve seat 402 by the spring force of the spring 425. The current supplied to the coil 421 is a pulsed excitation current.

このように、インジェクタ２９は、コイル４２１に給電されるパルス状励磁電流のオン・オフにより、噴射孔４０４の開口時間（開弁時間）又は開口面積を２段階、多段階、連続的（無段階）、又はリニアに切り替え可能に構成されている。そして、インジェクタ２９は、制御部７から出力される制御信号によって噴射口４０４からのガス噴射の時間及びタイミングが制御されることにより、水素ガスの流量及び圧力を高精度に調整する。この場合のインジェクタ２９の制御方法としては、パルス状励磁電流のデューティ比を変化させるデューティ制御が用いられる。ここで、デューティ比とは、パルス状励磁電流のＯＮ時間を、パルス状励磁電流のＯＮ時間とＯＦＦ時間とを加算したスイッチング周期で除したものである。デューティ比を変えることにより、インジェクタ２９は、０から一次圧（タンク内圧）までの任意の圧力に、二次圧を調整することができる。   In this way, the injector 29 has two stages, multi-stages, and continuous (stepless) steps for the opening time (valve opening time) or opening area of the injection hole 404 by turning on and off the pulsed excitation current supplied to the coil 421. ) Or linearly switchable. The injector 29 adjusts the flow rate and pressure of the hydrogen gas with high accuracy by controlling the time and timing of gas injection from the injection port 404 by the control signal output from the control unit 7. As a method for controlling the injector 29 in this case, duty control for changing the duty ratio of the pulsed excitation current is used. Here, the duty ratio is obtained by dividing the ON time of the pulsed excitation current by the switching period obtained by adding the ON time and the OFF time of the pulsed excitation current. By changing the duty ratio, the injector 29 can adjust the secondary pressure to any pressure from 0 to the primary pressure (tank internal pressure).

図２に示すように、インジェクタ２９には、ソレノイド部分４２０に隣接してハンドル部４３０が設けられている。ハンドル部４３０の一部は、オペレータが操作可能なように、ハウジング３００の外表面よりも外側に位置している。ハンドル部４３０の軸線方向は、軸線方向Ｙ−Ｙと合致している。ハンドル部４３０の外周面の一部には、ハウジング３００にねじ込み接続されるようにおねじ４３１が形成されている。ハンドル部４３０をハウジング３００から取り外すことで、インジェクタ２９の主弁部分４１０及びソレノイド部分４２０を調整することができるようになっている。   As shown in FIG. 2, the injector 29 is provided with a handle portion 430 adjacent to the solenoid portion 420. A part of the handle portion 430 is located outside the outer surface of the housing 300 so that the operator can operate it. The axial direction of the handle portion 430 coincides with the axial direction YY. A screw 431 is formed on a part of the outer peripheral surface of the handle portion 430 so as to be screwed into the housing 300. By removing the handle portion 430 from the housing 300, the main valve portion 410 and the solenoid portion 420 of the injector 29 can be adjusted.

以上説明した本実施形態によれば、水素タンク２１にインジェクタ２９を設け、水素タンク２１から供給路２２へと水素ガスを流出させる際に、インジェクタ２９で水素ガスの流量及び圧力を調整することができる。これにより、機械式の調圧弁を水素タンク２１に設ける場合に比べて、水素タンク２１から燃料電池２への水素ガスの放出流量（供給流量）を精緻に調整できる。加えて、インジェクタ２９は、機械式の調圧弁に比べて応答性が高いので、燃料電池２の発電量、水素ガスの消費状態又は運転状態に応じた流量の水素ガスを燃料電池２に応答性良く供給することができる。   According to the present embodiment described above, the injector 29 is provided in the hydrogen tank 21, and when the hydrogen gas flows out from the hydrogen tank 21 to the supply path 22, the flow rate and pressure of the hydrogen gas can be adjusted by the injector 29. it can. Thereby, compared with the case where a mechanical pressure regulation valve is provided in the hydrogen tank 21, the discharge | release flow rate (supply flow rate) of the hydrogen gas from the hydrogen tank 21 to the fuel cell 2 can be adjusted precisely. In addition, since the injector 29 has higher responsiveness than the mechanical pressure regulating valve, the responsiveness of the hydrogen gas at a flow rate corresponding to the power generation amount of the fuel cell 2, the consumption state of hydrogen gas, or the operating state is supplied to the fuel cell 2. Can be supplied well.

また、インジェクタ２９は、二次側への水素ガスの流出を遮断することもでき、インジェクタ２９自体をタンク元弁としても機能させることができる。特に、遮断時には、プランジャ４２３の鉄心４２２に対向する面に一次側の水素ガス圧（タンク内圧）が作用するため、弁体４０１はプランジャ４２３を介して閉弁方向の推力を作用される。これにより、弁体４０１と弁座４０２との密着度が高まり、インジェクタ２９内における流路の遮断性を高めることができる。   Further, the injector 29 can also block the outflow of hydrogen gas to the secondary side, and the injector 29 itself can function as a tank original valve. In particular, when shut off, the primary hydrogen gas pressure (tank internal pressure) acts on the surface of the plunger 423 facing the iron core 422, so that the valve body 401 is subjected to thrust in the valve closing direction via the plunger 423. Thereby, the close_contact | adherence degree of the valve body 401 and the valve seat 402 increases, and the interruption | blocking property of the flow path in the injector 29 can be improved.

一方、本実施形態では、インジェクタ２９の一次側に、タンク元弁として主止弁２６を設けている。このため、燃料電池システム１の停止時（水素ガス供給停止時）に主止弁２６を閉じることで、インジェクタ２９にタンク内圧を直接作用させることを抑制できる。また、インジェクタ２９の遮断特性が低下した場合にも、水素タンク２１からの水素ガスの流出を主止弁２６で遮断することができ、フェールセールを好適に達成することもできる。   On the other hand, in this embodiment, the main stop valve 26 is provided on the primary side of the injector 29 as a tank original valve. For this reason, it is possible to suppress direct application of the tank internal pressure to the injector 29 by closing the main stop valve 26 when the fuel cell system 1 is stopped (when hydrogen gas supply is stopped). Further, even when the shutoff characteristic of the injector 29 is lowered, the outflow of hydrogen gas from the hydrogen tank 21 can be shut off by the main stop valve 26, and a fail sale can be preferably achieved.

さらに、インジェクタ２９の配置の観点では、以下のような作用効果がある。
すなわち、インジェクタ２９を水素タンク２１の外側に配置したため、インジェクタ２９の取扱い性や保守性を高めることができる。また、インジェクタ２９は外気との熱交換が容易となるため、ガス放出時における水素タンク２１の温度低下の影響を抑制できる。
さらに、インジェクタ２９の軸線方向Ｙ−Ｙを水素タンク２１の軸線方向Ｘ−Ｘに直交させているため、水素タンク２１にバルブアッセンブリ３０が設けられた状態の構造の全長を比較的短くできる。これにより、全体として小型化でき、水素タンク２１等の設置スペースの占有領域を小さくできる。限られる設置スペースとの関係からすれば、相対的ではあるが、水素タンク２１を長手方向に伸長させることができ、水素ガスの貯蔵容量を増やすことができる。なお、インジェクタ２９の軸線方向Ｙ−Ｙを水素タンク２１の軸線方向Ｘ−Ｘを交差させる構成であってもよい。 Further, from the viewpoint of the arrangement of the injector 29, the following operational effects are obtained.
That is, since the injector 29 is disposed outside the hydrogen tank 21, the handling and maintainability of the injector 29 can be improved. Further, since the injector 29 can easily exchange heat with the outside air, the influence of the temperature drop of the hydrogen tank 21 at the time of gas discharge can be suppressed.
Furthermore, since the axial direction YY of the injector 29 is orthogonal to the axial direction XX of the hydrogen tank 21, the overall length of the structure in which the valve assembly 30 is provided in the hydrogen tank 21 can be made relatively short. Thereby, it can reduce in size as a whole and can occupy the installation area of the installation space such as the hydrogen tank 21. Although relative to the limited installation space, the hydrogen tank 21 can be extended in the longitudinal direction, and the storage capacity of hydrogen gas can be increased. Note that the axial direction YY of the injector 29 may intersect the axial direction XX of the hydrogen tank 21.

＜第２実施形態＞
次に、図３を参照して、第２実施形態に係るインジェクタ２９（バルブ）について相違点を中心に説明する。第１実施形態との相違点は、バルブアッセンブリ３０におけるインジェクタ２９の配置を同軸形に変更したことである。なお、第１実施形態と共通する構成については、第１実施形態と同一の符号を付してその詳細な説明を省略する。 Second Embodiment
Next, an injector 29 (valve) according to the second embodiment will be described with a focus on the differences with reference to FIG. The difference from the first embodiment is that the arrangement of the injectors 29 in the valve assembly 30 is changed to a coaxial shape. In addition, about the structure which is common in 1st Embodiment, the code | symbol same as 1st Embodiment is attached | subjected and the detailed description is abbreviate | omitted.

インジェクタ２９は、主弁部分４１０、ソレノイド部分４２０、及びハンドル部分４３０を有し、これら４１０，４２０及び４３０は、これらは水素タンク２１の軸線方向Ｘ−Ｘに沿って順にバルブアッセンブリ３０の第１の領域３０１に配置されている。つまり、本実施形態では、弁体４０１の軸線方向に相当するインジェクタ２９の軸線方向は、水素タンク２１の軸線方向Ｘ−Ｘに合致している。   The injector 29 has a main valve portion 410, a solenoid portion 420, and a handle portion 430, which are sequentially arranged along the axial direction XX of the hydrogen tank 21 in the first direction of the valve assembly 30. The region 301 is arranged. That is, in this embodiment, the axial direction of the injector 29 corresponding to the axial direction of the valve body 401 matches the axial direction XX of the hydrogen tank 21.

ハンドル部分４３０には、環状又は複数の水素ガスの流路４５１が貫通形成されている。流路４５１は、軸線方向Ｘ−Ｘに延在し、ハウジング３００内の流路４５３に連通している。流路４５３は、水素ガスがソレノイド部分４２０の外周を流れるように軸線方向Ｘ−Ｘに延在しており、インジェクタ２９の二次側の流路４５５に連通している。流路４５５は、ハウジング３００内に形成されており、供給路２２に連通している。したがって、貯留空間１０４内の水素ガスは、インジェクタ２９において、流路４５１、流路４５３、噴射孔４０４及び流路４５５を順に流れて、供給路２２に流出する。   An annular or plurality of hydrogen gas flow paths 451 are formed through the handle portion 430 so as to penetrate therethrough. The flow path 451 extends in the axial direction XX and communicates with the flow path 453 in the housing 300. The flow path 453 extends in the axial direction XX so that hydrogen gas flows on the outer periphery of the solenoid portion 420 and communicates with the flow path 455 on the secondary side of the injector 29. The channel 455 is formed in the housing 300 and communicates with the supply channel 22. Therefore, the hydrogen gas in the storage space 104 flows through the flow path 451, the flow path 453, the injection hole 404, and the flow path 455 in order in the injector 29 and flows out to the supply path 22.

本実施形態が第１実施形態に比べて有用となる点は、インジェクタ２９を水素タンク２１と同軸上に設けていることにより、インジェクタ２９が自己清浄し易くなることである。   The point that this embodiment is useful compared with the first embodiment is that the injector 29 is provided on the same axis as the hydrogen tank 21 so that the injector 29 can be easily cleaned.

具体的には、弁体４０１の軸方向の移動時に発生し得る磨耗粉などのコンタミは、流路４５３を流れる水素ガスと共に流路４５５へと排出され得る。これにより、インジェクタ２９内のソレノイド部分４２０の周囲にコンタミを滞留させなくて済み、インジェクタ２９を簡易な構造で自己清浄することができる。このような自己清浄効果は、プランジャ４２３の外周面又は弁体４０１の外周面がハウジング３００の内壁に摺動する場合に特に有用となる。なお、図３では、プランジャ４２３の外周面又は弁体４０１の外周面が摺動するような態様では表されていない。   Specifically, contamination such as abrasion powder that may be generated when the valve body 401 moves in the axial direction can be discharged into the flow path 455 together with the hydrogen gas flowing through the flow path 453. As a result, it is not necessary for contaminants to stay around the solenoid portion 420 in the injector 29, and the injector 29 can be self-cleaned with a simple structure. Such a self-cleaning effect is particularly useful when the outer peripheral surface of the plunger 423 or the outer peripheral surface of the valve body 401 slides on the inner wall of the housing 300. In FIG. 3, the outer peripheral surface of the plunger 423 or the outer peripheral surface of the valve body 401 is not represented in a sliding manner.

本実施形態の変形例として、インジェクタ２９の軸線方向が、水素タンク２１の軸線方向Ｘ−Ｘに合致していなくても良く、例えば両者が平行であってもよい。この場合も、上記と同様の作用効果を奏することができる。また、バルブアッセンブリ３０において、主止弁２６を省略したが、もちろんインジェクタ２９の一次側に主止弁２６を設けてもよい。   As a modification of the present embodiment, the axial direction of the injector 29 may not match the axial direction XX of the hydrogen tank 21, for example, both may be parallel. In this case as well, the same effects as described above can be achieved. In the valve assembly 30, the main stop valve 26 is omitted. Of course, the main stop valve 26 may be provided on the primary side of the injector 29.

なお、第１実施形態及び第２実施形態で説明したインジェクタ２９は、二次側へのガス圧の調整を行えることから、調圧弁（減圧弁、レギュレータ）と解釈することもできる。   The injector 29 described in the first embodiment and the second embodiment can be interpreted as a pressure regulating valve (a pressure reducing valve, a regulator) because it can adjust the gas pressure to the secondary side.

以上説明した本発明の燃料電池システム１は、二輪または四輪の車両、電車、航空機、船舶、ロボットその他の移動体に搭載することができる。また、燃料電池システム１は、定置用ともすることができ、コージェネレーションシステムに組み込むことができる。さらに、インジェクタ２９が設けられるタンクは、水素吸蔵合金用のタンクであってもよいし、炭化水素系の他の燃料ガスを貯蔵するものであってもよい。例えば、タンクは、圧縮天然ガスを例えば２０ＭＰａで貯蔵するものであってもよく、貯蔵する流体が気体であるか液体であるかなど、その種類が限定されるものではない。   The fuel cell system 1 of the present invention described above can be mounted on a two-wheeled or four-wheeled vehicle, a train, an aircraft, a ship, a robot, or other moving bodies. Further, the fuel cell system 1 can be used for stationary use and can be incorporated into a cogeneration system. Furthermore, the tank in which the injector 29 is provided may be a hydrogen storage alloy tank, or may store other hydrocarbon-based fuel gas. For example, the tank may store the compressed natural gas at 20 MPa, for example, and the type of the tank is not limited to whether the stored fluid is a gas or a liquid.

第１実施形態に係る燃料電池システムの構成図である。1 is a configuration diagram of a fuel cell system according to a first embodiment. FIG. 第１実施形態に係るバルブ及びタンクの構造を示す断面図である。It is sectional drawing which shows the structure of the valve | bulb and tank which concern on 1st Embodiment. 第２実施形態に係るバルブ及びタンクの構造を示す断面図である。It is sectional drawing which shows the structure of the valve | bulb and tank which concern on 2nd Embodiment.

符号の説明Explanation of symbols

１：燃料電池システム、２：燃料電池、２１：水素タンク、２６：主止弁、２９：インジェクタ   1: Fuel cell system, 2: Fuel cell, 21: Hydrogen tank, 26: Main stop valve, 29: Injector

Claims (7)

二次側への流体の流量を調整可能に構成されたバルブであって、
二次側がタンク内からの流体の放出側となるように当該タンクに設けられ、当該タンク内からの流体の放出流量をデューティ制御により調整可能に構成されたバルブ。 A valve configured to adjust the flow rate of fluid to the secondary side,
A valve that is provided in the tank so that the secondary side is the side from which the fluid is discharged from the tank, and is configured such that the flow rate of the fluid discharged from the tank can be adjusted by duty control. 前記放出流量をデューティ制御により調整する流量調整機構を有し、
前記流量調整機構は、前記タンク内からの流体の放出を遮断可能に構成されている、請求項１に記載のバルブ。 A flow rate adjusting mechanism for adjusting the discharge flow rate by duty control;
The valve according to claim 1, wherein the flow rate adjusting mechanism is configured to be able to block the release of fluid from the tank. 当該バルブの軸線と前記タンクの軸線とは、略平行である又は合致する、請求項１又は２に記載のバルブ。   The valve according to claim 1 or 2, wherein the axis of the valve and the axis of the tank are substantially parallel or coincident with each other. 当該バルブは、前記タンクのボディよりも外側に位置し、
当該バルブの軸線と前記タンクの軸線とは、略直交する、請求項１又は２に記載のバルブ。 The valve is located outside the tank body,
The valve according to claim 1 or 2, wherein an axis of the valve and an axis of the tank are substantially orthogonal to each other. 前記タンクには、当該バルブとは別体の主止弁が設けられ、
前記主止弁は、当該バルブの一次側に位置している、請求項１ないし４のいずれか一項に記載のバルブ。 The tank is provided with a main stop valve separate from the valve,
The valve according to any one of claims 1 to 4, wherein the main stop valve is located on a primary side of the valve. 請求項１ないし５のいずれか一項に記載のバルブをデューティ制御する、バルブ制御装置。   A valve control device for duty-controlling the valve according to any one of claims 1 to 5. 請求項１ないし５のいずれか一項に記載のバルブ及び前記タンクと、
酸化ガス及び燃料ガスが供給される燃料電池と、を備えた燃料電池システムであって、
前記タンク内の前記流体は、燃料ガスである、燃料電池システム。

The valve and the tank according to any one of claims 1 to 5,
A fuel cell system provided with an oxidizing gas and a fuel gas,
The fuel cell system, wherein the fluid in the tank is a fuel gas.

JP2006060128A 2006-03-06 2006-03-06 Valve, valve control device, and fuel cell system Withdrawn JP2007242304A (en)

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JP2006060128A JP2007242304A (en) 2006-03-06 2006-03-06 Valve, valve control device, and fuel cell system
PCT/JP2007/052438 WO2007102297A1 (en) 2006-03-06 2007-02-06 Valve, valve controller and fuel cell system
US12/223,484 US20090014089A1 (en) 2006-03-06 2007-02-06 Valve, Valve Controller, and Fuel Cell System
CNA2007800080108A CN101395423A (en) 2006-03-06 2007-02-06 Valve, valve controller and fuel cell system
DE112007000513T DE112007000513T5 (en) 2006-03-06 2007-02-06 Valve, valve control and fuel cell system

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