WO2012114646A1 - 燃料電池システム - Google Patents
燃料電池システム Download PDFInfo
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- WO2012114646A1 WO2012114646A1 PCT/JP2012/000257 JP2012000257W WO2012114646A1 WO 2012114646 A1 WO2012114646 A1 WO 2012114646A1 JP 2012000257 W JP2012000257 W JP 2012000257W WO 2012114646 A1 WO2012114646 A1 WO 2012114646A1
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- fuel cell
- housing
- air
- gas
- cell system
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- 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
- H01M8/0444—Concentration; Density
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- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
- H01M8/04022—Heating by combustion
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- 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
- H01M8/04955—Shut-off or shut-down of fuel cells
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- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- 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
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- 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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
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- 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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
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- 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
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- 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the present invention relates to a fuel cell system, and more particularly to a fuel cell system provided with a combustor.
- a raw material gas such as a city gas is reformed by a hydrogen generator into a hydrogen rich fuel gas by a catalytic reaction.
- the thermal energy necessary for the reforming reaction is supplied to the hydrogen generator
- a combustor is provided.
- the combustor burns the raw material gas and the off-fuel gas (a gas containing a flammable component in the reacted fuel gas discharged from the fuel cell) and applies heat to the hydrogen generator.
- the combustor takes in fresh air from the outside of the fuel cell system as combustion air to ensure a stable combustion state.
- the combustion exhaust gas generated by the combustion in the combustor is discharged as the combustion exhaust gas from the exhaust port provided in the housing to the outside of the fuel cell system.
- the flue gas usually contains almost no carbon monoxide (hereinafter also referred to as "CO").
- CO carbon monoxide
- the flue gas will contain CO.
- a cover member eg, a motorcycle cover
- fresh air is not taken into the combustor. Therefore, incomplete combustion occurs in the combustor, and CO is gradually contained in the flue gas, and the CO concentration inside the cover member is increased. This reduces the concentration of oxygen taken into the combustor, further promotes incomplete combustion, and further increases the concentration of CO discharged from the exhaust port.
- This high concentration of CO causes problems such as a decrease in the amount of power generation in the fuel cell system, a stop of the system, or a failure of the system.
- a CO sensor that detects the concentration of carbon monoxide generated at the time of combustion failure may be disposed in the combustion exhaust gas passage.
- FIG. 5 there is a water heater in which a CO sensor is installed on the exhaust port side of the combustion chamber.
- a CO sensor is installed on the exhaust port side of the combustion chamber.
- the combustion fan 106 rotates, indoor air is taken into the housing 101 from the air inlet 102 provided on the side surface of the housing 101.
- the air taken into the inside of the housing 101 is supplied to the combustion chamber 103.
- the gas is supplied to the burner 104 of the combustion chamber 13.
- the gas and air are burned by the burner 104, and the combustion exhaust gas is discharged from the exhaust port 107 provided at the top of the combustion chamber 103.
- a catalytic combustion type CO sensor 108 is provided on the exhaust port 107 side of the combustion chamber 103, and detects the concentration of CO in the combustion exhaust gas (first conventional example: see, for example, Patent Document 1).
- air is supplied to the combustor 204 in the housing 201 by the blower 205.
- the combustor 204 is supplied with the source gas and the off fuel gas. These are burned in the combustion chamber 204 and the flue gas is discharged from the hydrogen generator 203.
- the combustion exhaust gas is discharged to the outside from the combustion exhaust gas outlet 208 provided in the housing 201 through the combustion exhaust gas passage 207.
- a CO sensor 210 is provided in the flue gas path 207, and the CO sensor 210 detects the concentration of CO gas in the flue gas.
- the CO sensor 210 is housed in a sensor cap in which a plurality of through holes 216 are formed (second prior art example: see, for example, Patent Document 2).
- the combustion exhaust gas cools as it goes from the burner 104 to the exhaust port 107. For this reason, there is a possibility that moisture contained in the combustion exhaust gas may be condensed by the CO sensor 108 disposed on the exhaust port 107 side. When the moisture adheres to the CO sensor 108, a problem occurs that the output value of the CO sensor 108 changes or the CO sensor breaks down due to disconnection or the like.
- the hydrogen generator is supplied with water in addition to the fuel gas and the oxidant gas.
- the combustion exhaust gas from the hydrogen generator contains a large amount of water, the water tends to condense, and the adhesion of water is a serious problem.
- a contact combustion type CO sensor is used.
- This CO sensor detects the concentration of combustible gas by burning a combustible gas such as carbon monoxide or hydrogen. Therefore, if the concentration of the flammable gas is very high, there is a risk that the CO sensor may break down.
- a fuel cell system uses a fuel gas containing a large amount of hydrogen. The CO sensor is temporarily exposed to the fuel gas when the burner combustion is stopped or the purge process is performed. The CO sensor reacts with hydrogen gas, which is more reactive than CO gas, and breaks down.
- the present invention solves such a problem, and by reliably detecting carbon monoxide around the fuel cell system, it is possible to suppress the occurrence of a problem in the fuel cell system.
- the purpose is to provide.
- a fuel cell system includes a hydrogen generator that reforms a raw material gas to generate a fuel gas containing hydrogen, and an oxidation that includes the fuel gas and oxygen generated by the hydrogen generator.
- a fuel cell for generating electricity by reacting with an agent gas, a combustor for burning at least one of the raw material gas and the off-fuel gas discharged from the fuel cell, the hydrogen generator, the fuel cell, and
- the casing is formed in the casing as a casing for housing the combustor, a flue gas passage for discharging the flue gas generated in the burner, and a tip opening of the flue gas passage, and the flue gas from the burner is
- a first exhaust port for discharging to the outside of a housing, a first air intake port formed in the housing, a suction device for sucking air into the housing from the first air inlet, and
- the flue gas path inside Located outside the location, comprising a CO detector for detecting carbon monoxide contained in the the air intake into said housing from said first intake
- the CO detector is disposed at a place other than the flue gas passage. For this reason, the CO detector is not directly exposed to the flue gas. Therefore, it is possible to prevent the CO detector from being broken due to moisture, hydrogen and the like contained in the combustion exhaust gas.
- the CO detector can detect the CO concentration without failure.
- the concentration of CO in the flue gas increases.
- the flue gas exhausted from the first exhaust port through the flue gas passage is discharged to the outside of the housing. Then, the air around the housing is sucked into the housing by the suction device, and the CO concentration in the air is detected by the CO sensor. For this reason, by detecting carbon monoxide around the housing, it is possible to suppress the occurrence of a failure in the fuel cell system, and it is also possible to ensure safety.
- the CO detector detects carbon monoxide contained in the hydrogen that has been sucked from the first air inlet, the fuel cell, and the air that has not passed through the combustor. May be configured.
- the air passing through the hydrogen generator, the fuel cell and the combustor may include a fuel gas containing a large amount of hydrogen and a combustion exhaust gas containing a large amount of water.
- the CO detector since the CO detector is not exposed to such air, the failure of the CO detector due to hydrogen or moisture can be prevented.
- a fuel cell system is disposed in the housing, and a control substrate for converting DC power generated by the fuel cell into AC power, a space in the housing, the suction device, the control substrate, and the CO detector Is formed in the housing, and a partition that divides the first space in which the hydrogen gas is disposed, the second space in which the hydrogen generator, the fuel cell, and the combustor are disposed, and the first air inlet And a second exhaust port for releasing the air drawn by the aspirator into the first space in the casing from the casing to the outside of the casing.
- the suction device forcibly sucks the air outside the housing from the first air inlet and supplies the air to the first space. For this reason, the air around the housing is supplied to the CO detector in the first space, and the CO detector can detect the concentration of CO in the air reliably and at an early stage. Further, the control substrate in the first space is cooled by the air sucked by the first suction device. As a result, the inverter circuit of the control board is prevented from breakdown due to heat, and the direct current power generated by the fuel cell is reliably converted to alternating current power.
- the first space is isolated from the second space in which the hydrogen generator, the fuel cell and the combustor are disposed by the partition wall. For this reason, the heat from the hydrogen generator, the fuel cell and the combustor is shut off by the partition wall. Thus, heating of the control substrate and the like in the first space is suppressed, and failure of the control substrate and the like is prevented.
- the air drawn into the housing from the first air inlet is discharged from the second exhaust port to the outside of the housing.
- air inside the housing does not stay, and air outside the housing is drawn into the housing smoothly.
- the CO detector can accurately detect the concentration of CO contained in the air outside the housing.
- the fuel cell system includes a second intake port formed in the housing so as to communicate with the second space, and a communication portion formed in the partition to communicate the first space and the second space. You may provide further.
- the suction device sucks the air taken into the second space from the second air inlet into the first space via the communication portion.
- the air outside the housing is supplied to the second space via the second air intake port by the suction device.
- This air can be used for, for example, a redox reaction in a fuel cell and combustion in a combustor.
- the CO detector in the first space can reliably detect the concentration of CO contained in the air around the housing.
- the partition wall may include an inlet cover attached to the inside of the housing to prevent rainwater from entering the housing from the first inlet.
- the communication portion is formed in the intake port cover.
- the inlet cover prevents rainwater from entering the housing from the first inlet.
- the rainwater can prevent the CO detector and the control board from being broken.
- the fuel cell system may further include a control board for stopping the operation of the fuel cell system when the CO detector detects carbon monoxide.
- the CO detector may include a catalytic combustion type CO detector.
- the CO detector is not exposed to a fuel gas or the like containing a high concentration of hydrogen because the air outside the housing is provided. Therefore, a catalytic combustion type CO detector is used which has high sensitivity for detecting carbon monoxide but may be damaged due to high concentration of hydrogen or the like. This prevents the failure of the CO detector and reliably detects the CO concentration.
- the present invention has a configuration described above, and provides a fuel cell system capable of suppressing occurrence of a problem in the fuel cell system by reliably detecting carbon monoxide around the fuel cell system. It has the effect of being able to
- FIG. 4 is a partial perspective view of the fuel cell system of FIG. 3; It is a figure which shows the structure of the conventional water heater.
- A) is a figure which shows the partial structure of the conventional fuel cell system
- (b) is a principal part enlarged view of the fuel cell system of (a).
- FIG. 1 is a diagram showing a configuration of a fuel cell system according to Embodiment 1 of the present invention. It is a figure which shows the structure of the fuel cell system which concerns on other embodiment of this invention.
- FIG. 7 is a diagram showing a configuration of a fuel cell system according to Embodiment 1.
- the fuel cell system 27 reacts the fuel gas generated by the hydrogen generator 2 with the oxidant gas containing oxygen by causing the hydrogen generator 2 to generate a fuel gas containing hydrogen by reforming the raw material gas.
- a fuel cell 5 for generating power, a combustor 3 for burning at least one of a raw material gas and an off-fuel gas discharged from the fuel cell 5, a hydrogen generator 2, a fuel cell 5, and the combustor 3 are housed.
- the casing 13 is formed in the casing 13 as a tip end opening of the flue gas passage 12 for discharging the flue gas generated in the combustor 3 and the flue gas from the combustor 3 outside the casing 13.
- Suction ports 4, 7, 23, 32 which suck air from the first intake port 21 formed in the housing 13 and the first intake port 21 into the housing 13. 51 and the flue gas path inside the housing 13
- a CO detector 24 arranged at a place other than 2 and detecting carbon monoxide contained in the air sucked into the housing 13 from the first air inlet 21 by the suction devices 4, 7, 23, 32, 51. Equipped with
- a combustion air pump 4 As a suction device, a combustion air pump 4, an air pump 7, a ventilation fan 23, an air supplier 32 and a ventilation fan 51 are used.
- air is supplied to the combustor 3 by the combustion air pump 4.
- air is sucked from the first air inlet 21 into the housing 13, so the combustion air pump 4 functions as a suction device.
- air is supplied as an oxidant gas to the cathode of the fuel cell 5 by the air pump 7 in the housing 13.
- the air pump 7 functions as a suction device.
- the air inside the housing 13 is exhausted by the ventilation fans 23 and 51, and the air outside the housing 13 is taken in.
- the ventilation fans 23 and 51 function as suction devices.
- the air supplier 32 supplies outside air to the first space 30. At this time, since the air is drawn into the first space 30 in the housing 13 from the first air inlet 21, the air supplier 32 functions as a suction device.
- the CO detector 24 is disposed at a place other than the flue gas passage 12. For this reason, the CO detector 24 is not directly exposed to the flue gas. Thus, the CO detector 24 is prevented from being damaged by a large amount of water, high concentration hydrogen and the like contained in the combustion exhaust gas.
- the fuel cell 5, the hydrogen generator 2 and the combustor 3 are housed in the housing 13.
- the combustor 3 burns the raw material gas or the off-fuel gas and heats the hydrogen generator 2.
- the heated hydrogen generator 2 performs a reforming reaction of the raw material gas to generate a fuel gas containing hydrogen.
- the fuel cell 5 generates electricity by reacting the fuel gas generated by the hydrogen generator 2 with an oxidant gas containing oxygen.
- the combustion exhaust gas from the combustor 3 is discharged from the first exhaust port 14 of the housing 13 to the outside of the housing 13. Then, air around the housing 13 is drawn into the housing 13 from the first air inlet 21 of the housing 13 by the suction devices 4, 7, 23, 32, 51.
- the CO detector 24 detects CO contained in the air.
- the fuel gas is discharged from the combustor 3 without burning the fuel gas or the like in the combustor 3, the fuel gas is discharged from the first exhaust port 14 to the outside of the housing 13 through the combustion exhaust gas passage 12. Be done.
- the concentration of fuel gas is diluted by air.
- hydrogen is much lighter and easier to diffuse than air. For this reason, the concentration of hydrogen contained in the fuel gas is even lower. Therefore, since the concentration of hydrogen taken in from the first intake port 21 is low, the CO detector 24 hardly reacts with hydrogen. The CO detector 24 can detect the CO concentration without failure.
- FIG. 1 shows the configuration of a fuel cell system 27 according to Embodiment 2 of the present invention.
- Embodiment 2 shows an example in which the fuel cell system of Embodiment 1 is applied to a fuel cell system provided with a water recovery system and the like.
- the reformer 1 includes a hydrogen generator 2 and a combustor 3.
- the hydrogen generator 2 reforms the raw material gas into a hydrogen rich fuel gas with a catalyst or the like.
- hydrocarbon gas such as natural gas, other hydrocarbon gas such as propane gas, hydrocarbon fuel such as kerosene, etc. liquid at normal temperature, organic fuel other than hydrocarbon such as methanol Used.
- the condenser 10 is supplied with a gas (combustion waste gas) generated by the combustion in the combustor 3 from the hydrogen generator 2.
- the condenser 10 recovers heat from the flue gas and separates the water condensed thereby from the flue gas.
- the combustion exhaust gas after the heat and the condensed water are recovered is discharged to the outside of the housing 13 from the first exhaust port 14 provided in the housing 13 through the combustion exhaust gas path 12.
- the condensed water separated from the condenser 10 is recovered to the condensed water tank 11 through the condensed water path 15.
- the combustor 3 burns the raw material gas and the off-fuel gas and heats the hydrogen generator 2 to an appropriate temperature.
- the combustion air pump 4 supplies the air in the housing 13 to the combustor 3 so that the combustion in the combustor 3 is in an optimal state.
- the fuel cell 5 has an anode electrode and a cathode electrode, and generates electricity by the redox reaction in these electrodes.
- the hydrogen rich fuel gas reformed by the reformer 1 is supplied to the anode electrode.
- off fuel gas that has not been used for the oxidation-reduction reaction is discharged from the anode electrode to the condenser 8.
- Air is supplied as an oxidant gas containing oxygen to the cathode electrode.
- the air pump 7 supplies the air in the housing 13 to the humidifier 6.
- the humidifier 6 humidifies the air from the air pump 7 to an appropriate dew point, and supplies the humidified air to the cathode electrode.
- an off-oxidant gas not utilized for the redox reaction is discharged from the cathode to the condenser 9.
- the condenser 8 recovers heat from the off fuel gas discharged from the anode of the fuel cell 5, and separates the water condensed thereby from the off fuel gas.
- the off fuel gas after the heat and condensed water are recovered is supplied to the combustor 3.
- the condenser 9 recovers heat from the off-oxidant gas discharged from the cathode electrode of the fuel cell 5, and separates the water condensed thereby from the off-oxidant gas.
- the off-oxidant gas after the heat and the condensed water are recovered is released to the outside of the fuel cell system 27.
- the condensed water tank 11 collects condensed water in the condensers 8, 9, 10.
- the water collected in the condensed water tank 11 is sent to the water purifier 17 by the water supply pump 16 and purified by the water purifier 17.
- the purified water is stored in the water tank 18.
- the water in the water tank 18 is supplied as cooling water to the fuel cell 5 by the cooling water supply pump 19.
- the cooling water recovers heat generated at the time of power generation in the fuel cell 5. This heat is recovered by the heat exchanger 20 and stored, for example, as hot water stored in an external hot water storage tank (not shown). Further, the heat recovered from the aforementioned condensers 8, 9 and 10 is also stored as hot water stored in the external hot water storage tank.
- the housing 13 accommodates the components of the fuel cell system 27 as described above.
- the housing 13 is provided with a first exhaust port 14, a first intake port 21 and a second exhaust port 22.
- the first exhaust port 14 is connected to the combustor 3 by the flue gas passage 12.
- the flue gas path 12 is formed to pass through the hydrogen generator 2 to heat the hydrogen generator 2 by the flue gas.
- the first exhaust port 14 discharges the flue gas generated in the combustor 3 and passed through the hydrogen generator 2 to the outside of the housing 13.
- the first intake port 21 is provided in the vicinity of the first exhaust port 14 and below the first exhaust port 14.
- a ventilation fan 23 is installed inside the housing 13 and near the first air inlet 21.
- the ventilation fan 23 rotates in a direction to introduce the air outside the housing 13 from the first air inlet 21 into the inside of the housing 13.
- the air introduced by the ventilation fan 23 is supplied to the CO sensor 24 and is also supplied to the inside of the housing 13.
- the second exhaust port 22 is provided above the first exhaust port 14. In addition to the air supplied to the CO sensor 24 from the first intake port 21, the second exhaust port 22 also discharges the air spread inside the housing 13 to the outside of the housing 13.
- a contact combustion type CO sensor is used as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24 as the CO sensor (CO detector) 24, a contact combustion type CO sensor is used as the CO sensor (CO detector) 24, a contact combustion type CO sensor is used.
- the catalytic combustion type CO sensor detects the concentration of reducing gas by oxidizing the surface of the detecting element with the reducing gas such as hydrogen gas or CO gas.
- the contact combustion type CO sensor is excellent in heat resistance, moisture resistance, responsiveness, and the like, and is suitable as a CO sensor used for the fuel cell system 27.
- the CO sensor 24 is provided in a region extending from the first intake port 21 to the second exhaust port 22, and is disposed in the vicinity of the first intake port 21 inside the housing 13. Therefore, the air outside the housing 13 introduced from the first air inlet 21 is given to the CO sensor 24.
- the CO sensor 24 measures CO concentration in the housing 13 to detect CO. Therefore, the CO sensor 24 detects CO contained in the air not passing through the hydrogen generator 2, the fuel cell 5, and the combustor 3 after being sucked from the first intake port 21.
- the CO sensor 24 is connected to the control board 26 by the CO sensor harness 25 and outputs a detection signal to the control board 26 when CO is detected.
- the control board 26 includes a controller (not shown), and stops operation of the fuel cell system 27 when the CO sensor 24 detects CO.
- the control board 26 also includes an inverter circuit (not shown) that converts direct current power generated by the fuel cell 5 into alternating current power. The controller controls the power output from the fuel cell 5 using this inverter circuit.
- the raw material gas is supplied to the combustor 3 and burned. Thereby, the hydrogen generator 2 is heated. When the temperature of the hydrogen generator 2 reaches the temperature required for reforming the source gas, the source gas is also supplied to the hydrogen generator 2. Further, the cooling water supply pump 19 is driven, and the water in the water tank 18 is supplied to the hydrogen generator 2 as the water necessary for the reforming reaction. Then, the raw material gas is reformed in the hydrogen generator 2 to generate a hydrogen rich fuel gas.
- Fuel gas is supplied from the hydrogen generator 2 to the fuel cell 5. Further, the air humidified by the humidifier 6 is supplied to the fuel cell 5 by the air pump 7 as an oxidant gas. The fuel gas and air react with each other to generate electricity. The fuel gas contains residual combustible components not used for the redox reaction and the reforming reaction, and is discharged from the fuel cell 5 to the condenser 8 as an off fuel gas. In the condenser 8, heat is recovered from the off fuel gas, and the condensed water is separated. After this, the off fuel gas is supplied to the combustor 3. In the combustor 3, the off fuel gas is burned as a hydrogen combustion gas, and the temperature of the hydrogen generator 2 is maintained.
- a combustion exhaust gas is generated.
- the fuel combustion exhaust gas passes through the combustion exhaust gas path 12, is subjected to heat recovery and separation of condensed water in the condenser 10, and is then released from the first exhaust port 14 to the outside of the housing 13.
- the combustion exhaust gas contains a large amount of carbon dioxide and hardly contains a combustible gas such as hydrogen in a proper operating environment of the fuel cell system 27 in which the housing 13 is not covered by the cover 28. For this reason, the CO sensor 24 can appropriately detect CO contained in the air introduced from the first intake port 21 without almost detecting the combustible gas. Further, although the combustion exhaust gas contains water, since the water is heavy, it is hardly taken into the inside of the housing 13 from the first air inlet 21 by the ventilation fan 23. Thus, no moisture adheres to the CO sensor 24. Thus, the CO sensor 24 can reliably detect CO without any failure or malfunction.
- the combustion in the combustor 3 is stopped or the purge process is performed, a fuel gas temporarily containing a high concentration of hydrogen is included in the combustion exhaust gas. Even in such a case, the flue gas is at a high temperature, and hydrogen contained in the flue gas is lighter than air. For this reason, hydrogen rises upward from the first exhaust port 14 and diffuses into the air. Therefore, almost no hydrogen is introduced from the first intake port 21 disposed below the first exhaust port 14. As a result, the CO sensor 24 can easily detect hydrogen gas that is more reducing than CO gas, which may cause false detection or failure. However, the CO sensor 24 disposed in the vicinity of the first air inlet 21 is not exposed to high concentration of hydrogen. The failure of the CO sensor 24 is prevented, and the CO sensor 24 can appropriately detect CO contained in the air from the first intake port 21.
- the housing 13 of the fuel cell system 27 may be covered by some cover member, for example, a motorcycle cover 28 (shown by a two-dot broken line in FIG. 1).
- a motorcycle cover 28 shown by a two-dot broken line in FIG. 1.
- the housing 13 is completely sealed, and fresh air is not supplied to the inside of the cover 28.
- the fuel cell system 27 is operated under such an improper operating environment. In such a case, the combustion exhaust gas discharged from the first exhaust port 14 will stay inside the cover 28.
- the air inside the cover 28 including the combustion exhaust gas is supplied from the first intake port 21 to the combustor 3 and used as combustion air. Oxygen in the combustion air is consumed by combustion and released as combustion exhaust gas.
- the oxygen concentration in the combustion air gradually decreases, the combustion state in the combustor 3 deteriorates, and the CO concentration in the combustion exhaust gas increases.
- the CO concentration of the air inside the cover 28 also increases.
- the CO sensor 24 detects the concentration of CO contained in the air outside the housing 13, that is, the air inside the cover 28.
- the detected CO concentration is output from the CO sensor 24 to the control board 26, the operation of the fuel cell system 27 is stopped by the control board 26, and a warning sound is emitted.
- Such safety measures can further improve the safety while preventing the failure of the fuel cell system 27. Furthermore, the user is informed that the operation is inappropriate and the cover 28 is removed.
- the fuel cell system 27 can be operated under an appropriate operating environment. For this reason, the combustion exhaust gas is widely diffused in the atmosphere and hardly supplied to the combustor 3. Therefore, since the combustor 3 does not run short of oxygen and the concentration of CO in the combustion exhaust gas does not increase, the concentration of CO detected by the CO sensor 24 does not increase. Therefore, by monitoring the CO concentration detected by the CO sensor 24, it is detected whether the cover 13 covers the housing 13 in a sealed state.
- the combustion exhaust gas discharged from the first exhaust port 14 has a higher temperature than the outside air, and diffuses upward from the first exhaust port 14.
- the combustion exhaust gas is not directly introduced into the first air inlet 21 disposed below the first exhaust port 14. Therefore, it is possible to prevent the fuel combustion exhaust gas from reaching the CO sensor 24 through the first intake port 21 without being diluted.
- the CO sensor 24 is not exposed to the flue gas having a CO concentration or hydrogen concentration higher than the air inside the cover 28. For this reason, it is possible to prevent false detection that leads to an early gas shut-off or the like called “early cutting” and failure of the CO sensor 24 due to hydrogen exposure.
- the fuel cell system 27A of the third embodiment is substantially the same as the fuel cell system 27 of the second embodiment.
- the partition wall 29, the second intake port 33 and the third exhaust port 49 are further provided.
- an air supply device 32 is provided as a suction device.
- FIG. 2 is a block diagram of a fuel cell system 27A according to a third embodiment.
- the partition wall 29 is provided in the housing 13 and divides the internal space of the housing 13 into a first space 30 and a second space 31.
- an air supplier 32, a control board 26, and a CO sensor 24 are disposed in the first space 30.
- the hydrogen generator 2, the fuel cell 5, and the combustor 3 are disposed in the second space 31.
- a communication portion 34 is provided in the partition wall 29.
- the communication portion 34 penetrates the partition wall 29 and connects the first space 30 and the second space 31.
- the communication portion 34 allows air to move between the first space 30 and the second space 31.
- the second intake port 33 is provided below the first intake port 21 of the housing 13 so as to communicate with the second space 31.
- the second intake port 33 supplies air into the second space 31.
- the second intake port 33 supplies air to the wide second space 31.
- the second intake port 33 may be formed larger than the first intake port 21 or a plurality of second intake ports 33 may be provided. As a result, all the second intake ports 33 do not simultaneously close.
- the third exhaust port 49 is provided above the first exhaust port 14 of the housing 13.
- the third exhaust port 49 discharges the air that has been sucked from the second intake port 33 and has passed through the second space 31 to the outside of the housing 13.
- the air supplier 32 is provided in the vicinity of the first air inlet 21 in the first space 30.
- the air supply device 32 functions as a suction device and supplies the air taken in from the first air inlet 21 to the first space 30.
- the air sucked into the first space 30 from the first air inlet 21 by the air supplier 32 is exhausted to the second exhaust port 22 through the first space 30.
- the pumps 4 and 7 operate to suck air from the second air inlet 33 into the second space 31.
- the air taken into the second space 31 is introduced into the combustor 3 and the fuel cell 5.
- the raw material gas is burned in the combustor 3 and the hydrogen generator 2 is heated.
- the fuel cell 5 the fuel gas from the hydrogen generator 2 and the air react with each other in an oxidation-reduction reaction, and the fuel cell 5 generates electric power.
- the air taken into the second space 31 cools the hydrogen generator 2, the fuel cell 5, the combustor 3 and the like.
- combustion exhaust gas discharged from the hydrogen generator 2 is discharged from the first exhaust port 14 to the outside of the housing 13.
- the air supplier 32 is activated, and air outside the housing 13 is sucked into the first space 30 from the first air inlet 21. This air is supplied to the CO sensor 24, and the CO sensor 24 measures the concentration of CO contained in the air outside the housing 13. Further, air is also supplied to the control board 26 in the first space 30 to suppress an excessive temperature rise of the inverter circuit of the control board 26. The air having passed through the first space 30 is discharged from the second air intake 33 to the outside of the housing 13.
- air outside the housing 13 is supplied from the first air inlet 21 or the communication unit 34 to the CO sensor 24 in the first space 30 by the air supplier 32. Therefore, even if the first air inlet 21 is closed by the cover 28 or the like, CO contained in the air inside the cover 28 is reliably detected by the CO sensor 24. Therefore, when CO is detected by the CO sensor 24, the operation of the fuel cell system 27A is stopped by the control board 26, and a warning sound is emitted. Therefore, the safety can be improved while preventing the failure of the fuel cell system 27A. Furthermore, when the user is informed that the operation is improper and the cover 28 is removed, the fuel cell system 27A can operate normally without a lack of oxygen.
- the first intake port 21 below the first exhaust port 14, it is possible to prevent false detection due to "early disconnection” and failure of the CO sensor 24 due to hydrogen exposure.
- the first space 30 is partitioned from the second space 31 by the partition wall 29, and the air supply device 32 is provided in the vicinity of the first air inlet 21 in the first space 30. Therefore, the outside air taken in from the first intake port 21 can be reliably supplied to the CO sensor 24, and the control board 26 can be cooled.
- the heat and air of the second space 31 are not directly given to the first space 30 by the partition wall 29.
- the control substrate 26 and the like are prevented from becoming hot.
- gas causing failure of the CO sensor 24 such as water vapor or high concentration hydrogen may be generated temporarily and locally in the second space 31. Even in such a case, the gas causing the failure is once discharged and diffused from the second space 31 to the outside of the housing 13, and then introduced into the first space 30 and detected by the CO sensor 24. Therefore, the CO sensor 24 is not directly exposed to water vapor or high concentration hydrogen and the like, and the failure of the CO sensor 24 can be suppressed.
- the fuel cell system 27B of the fourth embodiment is substantially the same as the fuel cell system 27A of the third embodiment.
- the partition wall 29 includes the inlet cover 40.
- the position of the first air intake 21 is different from that of the first air intake 21 of the third embodiment.
- FIG. 3 shows a configuration of a fuel cell system 27B according to Embodiment 4 of the present invention.
- FIG. 4 is a partial perspective view of the fuel cell system 27B.
- the partition wall 29 includes a box-like air inlet cover 40, and the air inlet cover 40 surrounds the first air inlet 21 at a distance from the first air inlet 21. Attached to The air inlet cover 40 prevents rainwater from entering the housing 13 from the first air inlet 21.
- An air supply 32 is accommodated in the air inlet cover 40.
- An opening 42 and a communicating portion 43 are formed in the inlet cover 40.
- the opening 42 is formed in the rear plate 41 of the inlet cover 40.
- a CO sensor 24 is disposed outside the rear plate 41 of the inlet cover 40 and above the opening 42. The air introduced into the inlet cover 40 from the first inlet 21 by the air supplier 32 is sent upward toward the CO sensor 24 through the opening 42.
- the first intake port 21 is disposed at the same height as the CO sensor 24.
- the first intake port 21 is disposed below the CO sensor 24 by a predetermined distance.
- the operation and action of the fuel cell system 27B configured as described above are similar to those of the fuel cell system 27A.
- the CO sensor 24 is supplied through the opening 42. At this time, the CO sensor 24 is not adversely affected such as water intrusion from the first air inlet 21.
- air outside the housing 13 is supplied to the CO sensor 24 from the first air inlet 21 or the communication part 43 by the air supplier 32. Therefore, even if the first air inlet 21 is closed by the cover 28 or the like, CO contained in the air inside the cover 28 outside the housing 13 is reliably detected by the CO sensor 24. Therefore, when CO is detected by the CO sensor 24, the operation of the fuel cell system 27B is stopped by the control board 26, and a warning sound is emitted. Therefore, the safety can be improved while preventing the failure of the fuel cell system 27B. Furthermore, when the user is informed that the operation is improper and the cover 28 is removed, the fuel cell system 27B can be operated normally.
- the first intake port 21 is surrounded by the intake port cover 40 including the opening 42. Thereby, the air from the first intake port 21 can be supplied to the CO sensor 24 through the opening 42 while preventing the intrusion of water and the like from the first intake port 21.
- the ventilation fan 23 is used as a suction device
- the air supply device 32 is used as a suction device.
- the suction device is not limited to the ventilation fan 23 or the air supply device 32 as long as the air outside the housing 13 is introduced into the inside of the housing 13.
- the ventilation fan 51 may be installed near the second exhaust port 22 as a suction device.
- a ventilation fan may be installed as a suction device at each of both the first intake port 21 and the second and third exhaust ports 22 and 49. Even in this case, the same effect can be obtained.
- the ventilation fan 23 and the air supply device 32 are used as a suction device.
- the ventilation fan 23 and the air supply device 32 may not be provided in the housing 13.
- the combustion air pump 4 and the air pump 7 may be used as a suction device.
- the pumps 4 and 7 supply the air in the housing 13 to the humidifier 6 and the combustor 3. Thereby, even when the ventilation fan is not installed in any of the first intake port 21 and the second and third exhaust ports 22 and 49, the opening of the first intake port 21 and the second exhaust port 22 etc. External air flows into the inside of the housing 13.
- the CO sensor 24 detects the CO concentration of the air introduced into the inside of the housing 13. In this case, the CO sensor should more accurately detect the concentration of CO outside the housing 13 as the CO sensor 24 gets closer to the openings such as the first inlet 21 and the second and third outlets 22 and 49 as much as possible. Can.
- the CO sensor 24 is disposed in the vicinity of the first intake port 21 in all the embodiments described above, the CO sensor 24 may be disposed in the vicinity of the second intake port 33.
- the catalytic combustion type CO sensor is used as the CO sensor, but the present invention is not limited to this as long as it can detect CO.
- a semiconductor type CO sensor or the like is used as a CO sensor.
- This semiconductor type CO sensor detects the CO concentration by oxidizing on the surface of the reducing gas and the detection element.
- the method of detecting this CO concentration is basically the same as the catalytic combustion method. Therefore, by disposing the semiconductor type CO sensor in the vicinity of the first air inlet 21, the CO concentration is detected while the erroneous detection and the failure are prevented.
- the first intake port 21 is disposed below the first exhaust port 14.
- the arrangement of the first intake port 21 and the first exhaust port 14 is not limited to this.
- the first intake port 21 may be disposed to the side or above the first exhaust port 14. In this case, the distance between the first intake port 21 and the first exhaust port 14 may be sufficiently talked so that the combustion exhaust gas is not directly sucked into the first intake port 21, or the first exhaust port by the auxiliary component The same effect can be obtained by changing the direction of exhaust of the flue gas from 14.
- the box-like air inlet cover 40 is attached to the first space 30 so as to surround the first air inlet 21 at a distance from the first air inlet 21.
- the inlet cover 40 is not limited to this as long as it has a shape that prevents rainwater from entering the housing 13 from the first inlet 21.
- a plate-like inlet cover 50 may be mounted in the first space 30.
- the intake port cover 50 is disposed in parallel with the surface of the housing 13 provided with the first intake port 21 at a distance from the first intake port 21.
- the flue gas path 12 connected to the combustor 3 is disposed to pass through the hydrogen generator 2.
- the flue gas passage 12 may be connected to the combustor 3 and the first exhaust port 14 without passing through the hydrogen generator 2.
- the hydrogen generator 2 is heated by the combustor 3.
- an autothermal hydrogen generator can also be used.
- the combustor 2 is not used, and the hydrogen generator includes a pump. This pump is used as a suction device for drawing air from the first air inlet 21 into the housing 13. Further, in the autothermal hydrogen generator, the heat generated by the oxidation reaction of CO is used for the reforming reaction. At this time, since CO is reduced, failure of machinery due to CO is suppressed.
- the CO sensor 24 for detecting CO from the air outside the casing 13 sucked from the first air inlet 21 is used for the fuel cell systems 27, 27A, 27B.
- the CO sensor 24 can be applied to products using combustible gas such as a gas water heater, a gas heater, and a gas stove having a combustion system.
- the fuel cell system of the present invention is useful as a fuel cell system and the like that can suppress occurrence of a problem in the fuel cell system by reliably detecting carbon monoxide around the fuel cell system.
- Air generator 3 Combustor 4 Air pump for combustion (suction device) 5 Fuel cell 7 Air pump (aspirator) 12 combustion exhaust gas path 13 case 14 first exhaust port 21 first intake port 22 second exhaust port 23 ventilation fan (suction device) 24 CO sensor (CO detector) 27 fuel cell system 27A fuel cell system 27B fuel cell system 26 control board 29 partition wall 30 first space 31 second space 32 air supply device (aspirator) 33 second air intake 34 communication part 40 air intake cover 43 communicating part 50 air inlet cover 51 Ventilation fan (suction device)
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Abstract
Description
図7は、実施の形態1に係る燃料電池システムの構成を示す図である。
(実施の形態2)
図1は、本発明の実施の形態2に係る燃料電池システム27の構成を示す。実施の形態2は、実施の形態1の燃料電池システムを、水回収システム等を備える燃料電池システムに適用した例を示す。
(実施の形態3)
実施の形態3の燃料電池システム27Aは、実施の形態2の燃料電池システム27とほぼ同様である。ただし、実施の形態3の燃料電池システム27Aには、隔壁29、第2吸気口33および第3排気口49がさらに設けられる。また、燃料電池システム27の換気ファン23に代えて、空気供給器32が吸引器として設けられる。
(実施の形態4)
実施の形態4の燃料電池システム27Bは、実施の形態3の燃料電池システム27Aとほぼ同様である。ただし、実施の形態4の燃料電池システム27Aでは、隔壁29が吸気口カバー40を含む。また、第1吸気口21の位置が、実施の形態3の第1吸気口21と異なる。
本発明の燃料電池システムは、燃料電池システムの周囲の一酸化炭素を確実に検知することにより、燃料電池システムに不具合が発生することを抑制することができる燃料電池システム等として有用である。
3 燃焼器
4 燃焼用空気ポンプ(吸引器)
5 燃料電池
7 空気ポンプ(吸引器)
12 燃焼排ガス経路
13 筐体
14 第1排気口
21 第1吸気口
22 第2排気口
23 換気ファン(吸引器)
24 COセンサ(CO検出部)
27 燃料電池システム
27A 燃料電池システム
27B 燃料電池システム
26 制御基板
29 隔壁
30 第1空間
31 第2空間
32 空気供給器(吸引器)
33 第2吸気口
34 連通部
40 吸気口カバー
43 連通部
50 吸気口カバー
51 換気ファン(吸引器)
Claims (7)
- 原料ガスを改質反応させて水素を含む燃料ガスを生成する水素生成器と、
前記水素生成器で生成された前記燃料ガスと酸素を含む酸化剤ガスとを反応させて発電する燃料電池と、
前記原料ガスと前記燃料電池から排出されるオフ燃料ガスとのうちの少なくとも一方を燃焼させる燃焼器と、
前記水素生成器、前記燃料電池、及び前記燃焼器を収納する筐体と、
前記燃焼器で発生した燃焼排ガスを排出する燃焼排ガス経路と、
前記燃焼排ガス経路の先端開口として前記筐体に形成され、前記燃焼器からの燃焼排ガスを前記筐体の外に放出する第1排気口と、
前記筐体に形成された第1吸気口と、
前記第1吸気口から空気を前記筐体の中に吸入する吸引器と、
前記筐体の内部の前記燃焼排ガス経路以外の場所に配置され、前記吸引器により前記第1吸気口から前記筐体の中に吸入された空気中に含まれる一酸化炭素を検出するCO検出器を備える、燃料電池システム。 - 前記CO検出器は、前記第1吸気口から吸入された後に前記水素生成器、前記燃料電池、および前記燃焼器を経由していない空気に含まれる一酸化炭素を検出するように構成されている、請求項1に記載の燃料電池システム。
- 前記筐体内に配置され、前記燃料電池が発電した直流電力を交流電力に変換するインバータ回路を有する制御基板と、
前記筐体内の空間を、前記吸引器と前記制御基板と前記CO検出器とが配置されている第1空間と、前記水素生成器と前記燃料電池と前記燃焼器とが配置されている第2空間と、に仕切る隔壁と、
前記筐体に形成され、前記第1吸気口から前記筐体内の前記第1空間に前記吸引器により吸入された空気を前記筐体の外に放出する第2排気口と、をさらに備える、請求項1または2に記載の燃料電池システム。 - 前記第2空間に連通するように前記筐体に形成された第2吸気口と、
前記隔壁に形成され、前記第1空間と前記第2空間とを連通する連通部とをさらに備え、
前記第1吸気口が塞がれると、前記吸引器は、前記第2吸気口から前記第2空間に取り込まれた空気を前記連通部を介して前記第1空間に吸入する、請求項3に記載の燃料電池システム。 - 前記隔壁は、前記筐体の中に取り付けられ、前記第1吸気口から前記筐体へ雨水が侵入することを防止する吸気口カバーを含み、
前記吸気口カバーに前記連通部が形成されている、請求項4に記載の燃料電池システム。 - 前記CO検出器が一酸化炭素を検知した場合に、前記燃料電池システムの運転を停止させる制御基板をさらに備える、請求項1~5のいずれか1項に記載の燃料電池システム。
- 前記CO検出器は、接触燃焼式CO検出器を含む、請求項1~6のいずれか1項に記載の燃料電池システム。
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US13/980,296 US20130294130A1 (en) | 2011-02-24 | 2012-01-18 | Fuel cell system |
JP2013500853A JP5914862B2 (ja) | 2011-02-24 | 2012-01-18 | 燃料電池システム |
EP12748950.8A EP2680355A4 (en) | 2011-02-24 | 2012-01-18 | FUEL CELL SYSTEM |
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JP2017216242A (ja) * | 2017-07-04 | 2017-12-07 | パナソニックIpマネジメント株式会社 | 燃料電池コージェネレーションシステム |
Also Published As
Publication number | Publication date |
---|---|
EP2680355A4 (en) | 2014-12-24 |
US20130294130A1 (en) | 2013-11-07 |
JPWO2012114646A1 (ja) | 2014-07-07 |
EP2680355A1 (en) | 2014-01-01 |
JP5914862B2 (ja) | 2016-05-11 |
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