WO2008023729A1 - Combustion apparatus, fuel treatment device, and fuel cell power generating system - Google Patents
Combustion apparatus, fuel treatment device, and fuel cell power generating system Download PDFInfo
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- WO2008023729A1 WO2008023729A1 PCT/JP2007/066268 JP2007066268W WO2008023729A1 WO 2008023729 A1 WO2008023729 A1 WO 2008023729A1 JP 2007066268 W JP2007066268 W JP 2007066268W WO 2008023729 A1 WO2008023729 A1 WO 2008023729A1
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- gas
- valve
- shut
- combustion apparatus
- controller
- Prior art date
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Classifications
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- 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
- H01M8/04664—Failure or abnormal function
- H01M8/04686—Failure or abnormal function of auxiliary devices, e.g. batteries, capacitors
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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
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell 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
- H01M8/04298—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
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2400/00—Pretreatment and supply of gaseous fuel
- F23K2400/20—Supply line arrangements
- F23K2400/201—Control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2900/00—Special features of, or arrangements for fuel supplies
- F23K2900/05001—Control or safety devices in gaseous or liquid fuel supply lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/18—Detecting fluid leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
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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
Definitions
- Combustion device fuel processing device, and fuel cell power generation system
- the present invention relates to a combustion device, a fuel processing device, and a fuel cell power generation system.
- a conventional combustion apparatus mainly connects a gas supply path to a gas supply section on the primary side (gas infrastructure side) via a gas pipe, supplies gas to the combustion apparatus, and supplies heat from combustion to hot water. Use for etc.
- FIG. 7 is a block diagram showing a configuration of a conventional combustion apparatus.
- the conventional combustion apparatus generally has a combustor 101, a heat exchanger 102 that transfers the heat to water, etc., and a gas and a combustion in each of the combustor 101 and the heat exchanger 102.
- a gas cutoff valve 105 is provided on the downstream side of a portion connecting the gas pipe and the gas supply path 104 of the combustion apparatus.
- the combustion apparatus includes the gas cutoff valve 105, the combustor 101, and heat exchange.
- the entire structure including the vessel 102 is covered with a casing 100 made of metal or the like. That is, the gas shut-off valve 105 is disposed inside the casing 100 together with the combustor 101, the heat exchanger 102, and the like (see, for example, Patent Document 1).
- a countermeasure against such a gas leak of the combustion device is that a gas leak detection unit 107 is installed in the combustion device, and the control unit 103 of the combustion device shuts off the gas according to a detection signal that detects the gas leak.
- a configuration is adopted in which gas leakage is prevented by shutting off the valve.
- Patent Document 1 JP-A-4 292744
- the gas shut-off valve 105 is disposed in the casing 100 together with the combustor 101, the heat exchanger 102, etc.
- the gas inside the casing is filled with a gas mixture in the combustible range, and the gas burner combustor 101 is heated to a high temperature in the burner combustor 101, and is generated in the relay circuit and high-pressure part in the control unit 103.
- the present invention takes into consideration the problems of the conventional combustion device described above, and even if a gas leakage from a gas shut-off part such as a gas shut-off valve to the outside of the gas supply path occurs, a dangerous event such as ignition It is an object of the present invention to provide a combustion apparatus, a fuel processing apparatus, and a fuel cell power generation system that can avoid the problem and maintain safety.
- the first aspect of the present invention provides:
- One or more gas shut-off valves provided on the gas supply path upstream of the Pana body and controlled by the controller;
- the gas shut-off valve, the Pana body and the controller are spatially partitioned, and when there are a plurality of gas shut-off valves,
- the second aspect of the present invention provides:
- a housing provided to cover the PANA body and the controller; and the gas shut-off valve spatially partitioned from the PANA body and the controller is disposed outside the housing.
- 1 is a combustion apparatus according to a first aspect of the present invention
- the third aspect of the present invention provides
- a housing provided to cover the PANA body, the controller, and the one or more gas shut-off valves;
- a partition wall formed between the Pana body and the controller and the gas cutoff valve spatially partitioned from the Pana body and the controller.
- the partition forms a first space including the gas shut-off valve spatially cut with the PANA body and the controller, and a second space including the PANA body and the controller.
- 1 is a combustion apparatus according to the present invention.
- the fourth aspect of the present invention provides
- a combustion apparatus according to a third aspect of the present invention, wherein the first space includes a first communication port communicating with the atmosphere.
- the fifth aspect of the present invention provides
- the combustion apparatus according to a third aspect of the present invention, wherein the second space includes a second communication port communicating with the atmosphere.
- a ventilator for discharging the gas in the second space to the atmosphere from the second communication port
- a combustion apparatus according to a fifth aspect of the present invention, wherein the gas in the second space is forcibly exhausted by the ventilator.
- the seventh aspect of the present invention provides:
- the combustible gas is the combustion apparatus according to the first aspect of the present invention, which contains an odorous component.
- an odorous component remover provided in the gas supply path Prepared
- the odorant remover is
- the ninth aspect of the present invention provides:
- a combustible gas sensor that is provided in a space on the side of the Pana main body and the controller and detects the combustible gas leaked into the space;
- the controller is
- the combustion apparatus controls the one or more gas cutoff valves to be shut off based on a detection value of the combustible gas sensor.
- a fuel processing apparatus comprising a reformer that reforms a raw material by heating the combustion apparatus to generate a hydrogen-containing gas.
- a fuel processor of the tenth aspect of the present invention is a fuel processor of the tenth aspect of the present invention.
- a fuel cell power generation system comprising a fuel cell that generates power using a hydrogen-containing gas delivered from the fuel processing device.
- FIG. 1 is a block diagram showing a schematic configuration of a combustion apparatus and a conventional example according to Embodiment 1 of the present invention.
- FIG. 2 shows a schematic configuration of a combustion apparatus in a modification of the first embodiment according to the present invention.
- FIG. 3 is a block diagram showing a schematic configuration of the combustion apparatus according to the second embodiment, which is effective for the present invention.
- FIG. 4 is a block diagram showing a schematic configuration of the combustion apparatus according to the third embodiment, which is effective for the present invention.
- FIG. 5 is a block diagram showing a schematic configuration of a fuel processing apparatus according to Embodiment 4 that focuses on the present invention.
- FIG. 6 is a block diagram showing a schematic configuration of the fuel cell cogeneration system according to the fifth embodiment, which focuses on the present invention.
- FIG. 7 is a block diagram showing a schematic configuration of a conventional combustion apparatus
- FIG. 1 is a block diagram showing a schematic configuration of a combustion apparatus according to Embodiment 1 of the present invention.
- the combustion apparatus of the present embodiment includes a gas supply path 1 for supplying combustible gas from the gas infrastructure side, and a combustion corresponding to an example of the main body of the present invention for burning the supplied combustible gas. 4 and equipped.
- a gas flow rate adjusting unit 3 for adjusting the flow rate of the combustible gas supplied to the combustor 4 is disposed in the gas supply path 1 on the upstream side of the combustor 4.
- a gas shutoff valve 2 for shutting off flammable gas is arranged in the gas supply path 1 upstream of the gas flow rate adjusting unit 3.
- This gas shut-off valve 2 is a normally closed type valve that is closed in the event of a power failure or the like, and can prevent combustible gas from being supplied to the combustor 4.
- a combustion air supply unit 5 for supplying combustion air corresponding to the flow rate of the combustible gas to the combustor 4, and a heat exchanger 6 into which the combustion gas combusted in the combustor 4 is introduced. It has been.
- a heat medium supply unit 7 for supplying the heat medium to the heat exchanger 6 is provided.
- a control unit 10 for controlling the combustion operation of the combustor 4 by controlling the operations of the gas shut-off valve 2, the gas flow rate adjusting unit 3, the combustor 4, the fuel air supply unit 5, and the like is provided. Yes.
- the gas flow rate adjustment unit 3, the combustor 4, the combustion air supply unit 5, the heat exchanger 6, the heat medium supply unit 7, and the control unit 10 described above are a casing 8 made of metal. Covered.
- a gas leak detection unit 9 for monitoring gas leak is disposed in the casing 8.
- This gas leak detection unit 9 has a combustible gas sensor. The gas leak detection unit 9 determines whether or not gas leaks based on the detection value by the combustible gas sensor, and the gas leaks. If it is determined that the gas is present, the control unit 10 operates the gas shutoff valve 2 to shut off the gas supply from the infrastructure side.
- the gas shut-off valve 2 is Arranged outside the housing 8.
- the control unit 10 opens the gas cutoff valve 2 so that the combustible gas passes through the gas cutoff valve 2 from the gas supply path 1 and gas.
- a predetermined amount is measured by the flow rate adjusting unit 3 and supplied to the downstream combustor 4.
- combustion air corresponding to the metered gas is supplied from the combustion air supply unit 5 to the combustor 4 under the control of the control unit 10, and combustion is performed in the combustor 4.
- the combusted high-temperature gas is exhausted to the downstream heat exchanger 6 by exchanging heat with a heat medium such as water.
- the heat-exchanged water is used as hot water.
- control unit 10 closes the gas shutoff valve 10 to stop the supply of the combustible gas to the combustor 4, and the combustion air supply unit.
- the supply of combustion air from unit 5 to combustor 4 is also stopped.
- the combustion apparatus of the present embodiment is covered with a casing 8 made of metal, and a gas leak detection unit 9 is provided in the interior thereof. Gas leakage is monitored. Should a gas leak occur during the combustion operation of the combustion apparatus, the gas leak detection unit 9 detects a combustible gas leak and supplies a detection signal to the control unit 10. Upon receipt of the detection signal, the control unit 10 stops the supply of combustion air from the combustion air supply unit 5 and shuts off the gas shut-off valve 2 to stop the supply of combustible gas. Prevent leakage and spread damage.
- the combustion apparatus of the present embodiment is configured such that the gas shut-off valve 2 is arranged outside the housing 8, and therefore, the gas shut-off valve 2 should malfunction and cause a gas Even if leakage occurs from the shut-off valve 2 to the outside, the leaked gas does not fill the housing 8. Furthermore, ignition sources of combustible gases such as relay circuits and high-pressure parts in the combustor 4 and the control unit 10 that have been heated up are provided. Because it is covered with the body 8 and is spatially partitioned from the gas shut-off valve 2, flammable leaking gas does not come into contact with this ignition source and diffuses out of the combustion system to maintain safety. Is possible.
- the gas has an odorant in the gas, if a gas leak occurs, the user can detect the gas leak with an odor at an early stage, which improves safety. As a result, merchantability is improved.
- only one gas shut-off valve is provided.
- a configuration in which a plurality of gas shut-off valves are provided may be used to prevent leakage more reliably. These multiple gas shut-off valves are controlled to open and close simultaneously.
- FIG. 2 is a configuration diagram of a combustion apparatus provided with two gas cutoff valves as an example of the case where a plurality of gas cutoff valves are provided.
- a gas cutoff valve 2 ′ is further provided between the gas cutoff valve 2 and the gas flow rate adjustment unit 3. This gas shut-off valve 2 ′ is disposed in the housing 8.
- the gas cutoff valve 2 ' may be provided between the gas flow rate adjustment unit 3 and the combustor 4 between the gas cutoff valve 2 and the gas flow rate adjustment unit 3, or the gas cutoff valve. As with 2, gas shutoff valve 2 'is also located outside the housing 8!
- the gas shutoff valve 2 ' is also arranged between the gas flow rate adjusting unit 3 and the combustor 4, so that even a configuration in which a total of three gas shutoff valves are arranged leads to the combustor 4.
- the number of gas shut-off valves provided on the gas supply path 1 is not limited. In short, when a plurality of gas shut-off valves are provided in the gas supply path 1, it is only necessary that at least the gas shut-off valve in the most upstream gas supply path 1 is arranged outside the housing 8.
- the most upstream gas shut-off valve If the most upstream gas shut-off valve has not failed, even if the gas shut-off valve downstream of the most upstream gas shut-off valve fails, the most upstream gas shut-off valve shuts off the most upstream gas shut-off valve. The gas flow in the gas supply path downstream of the gas shut-off valve is stopped, and the leakage of combustible gas from the gas shut-off valve on the downstream side is suppressed. If the upstream gas shut-off valve fails, the gas shut-off valve This is because flammable gas leakage cannot be suppressed.
- the uppermost gas cutoff valve of the gas supply path 1 is controlled by the control unit 10 together with the downstream gas cutoff valve, and corresponds to the gas cutoff valve in the microcomputer gas meter. is not.
- FIG. 3 is a block diagram of the combustion apparatus according to the second embodiment which focuses on the present invention.
- the basic configuration of the combustion apparatus of the second embodiment is the same as that of the first embodiment, but the configuration of the casing is different. Therefore, this difference will be mainly described.
- the same components as those in the first embodiment are denoted by the same reference numerals.
- the casing 11 is hermetically isolated. Divided into two blocks l la and l ib, and the gas shut-off valve 2 and other components (gas flow rate adjustment unit 3, combustor 4, combustion air supply unit 5, heat exchanger 6 and The heat medium supply unit 7, the gas leak detection unit 9, and the control unit 10) are arranged in separate blocks l la and l ib, respectively.
- An example of the first space of the present invention corresponds to the block 11a of the present embodiment
- an example of the second space of the present invention corresponds to the block l ib of the present embodiment.
- the block 11a in which the gas shut-off valve 2 is arranged is an airtight body, the leakage of flammable gas proceeds, and the flammable gas leaks when the pressure in the block 11a is balanced with the gas supply pressure. Since it stops, it is possible to further ensure safety.
- the gas shut-off valve 2 is protected by the housing 11, the gas shut-off valve 2 can be protected from external impacts, corrosion due to wind and rain, and the like.
- FIG. 4 is a block diagram of the combustion apparatus according to the third embodiment which focuses on the present invention.
- the basic configuration of the combustion apparatus of the third embodiment is the same as that of the second embodiment, except that the blocks lla and lib are not sealed. Therefore, this difference will be mainly described.
- the same constituent elements as those of the second embodiment are denoted by the same reference numerals.
- a ventilation fan 13 and an intake port 14 associated with ventilation are provided in each of the two blocks lla and lib in the second embodiment.
- the first communication port is provided in the case 11 where the space in the block 11a communicates with the atmosphere, and the combustible gas leaking into the block 11a can be diffused and exhausted to the atmosphere.
- An example of the opening is a ventilation port (not shown) of the ventilation fan 13 provided in the block 11a of the present embodiment.
- an example of the second communication port of the present invention is that the space in the block l ib communicates with the atmosphere, and the combustible gas leaked into the block 1 lb can be diffused and exhausted to the atmosphere.
- a ventilation port (not shown) of the ventilation fan 13 provided in the block l ib of the present embodiment is an example of a ventilation port. If the ventilation fan 13 installed in the block l ib stops! /, The block 1 lb is installed in the block 1 lb! / Since the air is diffused and exhausted into the gas atmosphere, the air inlet 14 also functions as a vent of the present invention.
- An example of the ventilator of the present invention corresponds to the ventilation fan 13 of the present embodiment.
- the block 11a does not have the ventilation fan 13, the portion communicating with the outside air through the intake port 14 or the like If there is a fault, the leaked gas is diffused and exhausted to the atmosphere, so it does not fill the block 11a and diffuses out of the system of the combustion device, so safety can be maintained.
- the gas has an odorant! /, !, so if a gas leak occurs, the user can quickly detect the gas leak with the odor! /. This will improve the product quality.
- the block l ib may not be provided with the ventilation fan 13.
- the block 11a diffuses from the block 11a and flows into the block l ib through the intake port 14 on the block l ib side.
- the block 11a may be a sealed space without providing the ventilation fan 13 and the intake port 14, and only the intake port 14 or the ventilation fan 13 and the intake port 14 may be provided on the block 1 lb side.
- FIG. 5 is a block diagram of a fuel processor according to Embodiment 4 of the present invention.
- the fuel processing apparatus of the fourth embodiment uses the combustion apparatus of the third embodiment, and the same constituent elements as those of the third embodiment are denoted by the same reference numerals.
- the combustion apparatus of the present embodiment is supplied with a gas supply path 1 for supplying a combustible raw material gas containing an organic compound composed of at least a carbon element and a hydrogen element such as methane from the gas infrastructure side.
- a fuel processor 15 is provided for generating a hydrogen-containing gas by a reforming reaction using the raw material gas.
- the fuel processor 15 can generate hydrogen by a water vapor reforming method using steam, a partial oxidation reforming method using air, an autothermal method using both, or the like.
- a desulfurizer 27 is provided in the gas supply path 1 upstream of the desulfurizer 27.
- a gas flow rate adjusting unit 3 that adjusts the flow rate of the gas supplied to the fuel processor 15 is disposed in the gas supply path 1 upstream of the desulfurizer 27.
- a gas shutoff valve 2 for shutting off the gas supply is disposed in the gas supply path 1 upstream of the gas flow rate adjusting unit 3.
- the gas flow rate adjusting unit 3 may be provided on the downstream side of the desulfurizer 27.
- a combustor 16 for heating the fuel processor 15 is provided. On the downstream side of the fuel processor 15, the hydrogen-containing gas generated by the fuel processor 15 is supplied to the outside of the fuel processor. Distributor 17 for distributing to combustor 16 side is arranged!
- a combustion air supply unit 5 that supplies combustion air to the combustor 16 according to the flow rate of the hydrogen-containing gas distributed by the distributor 17 and supplied to the combustor 16 is provided.
- the combustion gas burned in the combustor 16 is guided to the fuel processor 15, supplies necessary heat to the fuel processor 15, and is then exhausted as exhaust gas.
- the fuel processing apparatus of the fourth embodiment is provided with a casing 11 so as to cover the components, and the casing 11 has a partition wall formed inside. It is divided into two blocks l la and l ib that are airtightly separated by twelve. In one block 11a, only the gas shut-off valve 2 whose operation is controlled by the control unit 26 among the components is arranged, and in the other block l ib, the gas flow rate adjusting unit 3, the fuel processor 15 A distributor 17, a combustor 16, a combustion air supply unit 5, and a control unit 26. Each of these blocks l la and l ib is equipped with a ventilation fan 13 and an intake port 14 associated with ventilation.
- a gas leakage detection unit 9 for monitoring gas leakage inside the block l ib is arranged, and a control unit 26 is installed based on a gas detection signal from the gas leakage detection unit 9.
- the gas shut-off valve 2 is operated to cut off the gas supply from the infrastructure side.
- the fuel processor configured as described above, when a gas leak occurs from the gas shut-off valve 2 to the outside of the gas supply path 1, the raw material gas leaks only to the block 11a in which the gas shut-off valve 2 is stored. Since the block 11a is constantly ventilated, the leaked raw material gas is diffused and exhausted out of the fuel processor in a diluted state. Further, the high temperature portion such as the combustor 16 is not present in the block 11a where the raw material gas has leaked, but is disposed in the block lib.
- the other block l ib is provided with a fuel processor 15 for reforming the fuel at a high temperature of less than 700 ° C and a control unit 26 for generating a spark in the relay circuit and the high pressure section.
- a fuel processor 15 for reforming the fuel at a high temperature of less than 700 ° C
- a control unit 26 for generating a spark in the relay circuit and the high pressure section.
- the block l ib may not be provided with the ventilation fan 13.
- a ventilation fan 13 is provided on the block l ib side to allow the gas diffused from the block 11a and flowing into the block l ib from the intake port 14 on the block l ib side to be exhausted to the atmosphere. Is more preferable.
- the gas shut-off valve 2 and other components are separated into separate blocks lla, l ib formed by the casing 11 and the partition wall 12.
- the configuration in which the ventilation fan 13 and the intake port 14 are provided for each of the blocks l la and l ib has been described.
- the ventilation fan 13 and the intake air A configuration in which the port 14 is not provided may be used (see FIG. 2).
- the gas cutoff valve 2 may be configured to be exposed to the outside air without being covered by the casing (see FIG. 1).
- a plurality of gas cutoff valves controlled by the control unit 26 may be provided, and at least the most upstream gas cutoff valve may be provided in the block 11a.
- the block 11a may be a sealed space without providing the ventilation fan 13 and the intake port 14, and only the intake port 14 or the ventilation fan 13 and the intake port 14 may be provided on the block 1 lb side.
- FIG. 6 shows the fuel in Embodiment 5 as an example of the fuel cell power generation system of the present invention.
- the fuel cell cogeneration system of the present embodiment is a system using the fuel processing device of the fourth embodiment, and the same components as those in the fourth embodiment are denoted by the same reference numerals. .
- the reforming method used in the fuel processor 15 of the fuel cell cogeneration system of Embodiment 5 is a steam reforming method, water vapor is supplied to the fuel processor 15.
- a water supply unit 18 is provided.
- a fuel cell stack 19 in which cells composed of a polymer electrolyte membrane, an anode, a force sword, a separator, and the like are stacked is provided.
- the hydrogen-containing gas generated by the fuel processor 15 is supplied to the anode of the fuel cell stack 19.
- an air supply unit 20 for supplying air to the power sword of the fuel cell stack 19 is provided.
- an electric power extraction unit 21 for extracting electric power generated in the fuel cell stack 19 and a heat recovery unit 22 for recovering heat generated in the fuel cell stack 19 are provided.
- a power supply 23 for controlling and driving the above components, a control actuator 24, and a control unit 25 for controlling the operation of the entire system including the combustion operation of the combustor 16 are provided.
- the fuel cell cogeneration system of the fifth embodiment is provided with a casing 11 so as to cover the components, as in the fuel treatment device of the fourth embodiment. It is divided into two blocks l la and l ib hermetically separated by a partition wall 12 formed on the side. In one block 11a, only the gas shut-off valve 2 controlled by the control unit 25 among the components is arranged, and in the other block ib, the gas flow rate adjusting unit 3, the combustion air supply unit 5, Fuel processor 15, combustor 16, fuel cell stack 19, air supply unit 20, power extraction unit 21, heat recovery unit 22, power supply 23, control architecture And a control unit 25 are arranged. Each of these blocks l la and l ib is equipped with a ventilation fan 13 and an intake port 14 associated with ventilation.
- a gas leakage detection unit 9 for monitoring gas leakage in the block l ib is provided in the block l ib. Based on the gas leakage detection signal from the gas leakage detection unit 9, the control unit 25 detects the gas leakage. The shutoff valve 2 is operated, and the supply of raw material gas from the infrastructure side is shut off. The control unit 25 also controls other components (such as the gas flow rate adjusting unit 3).
- the block 11a does not have the ventilation fan 13
- the leaked source gas is diffused and exhausted to the atmosphere. Therefore, it is possible to maintain safety because the casing 18a is not filled with the system but diffuses outside the system. Since the gas has an odorant in the gas, if a gas leak occurs, it is possible to detect the leak of the raw material gas at an early stage due to the odor, improving safety and improving the merchantability. Become.
- the block l ib may not be provided with the ventilation fan 13.
- the gas shut-off valve 2 and other components are separated into separate blocks lla, l ib formed by the casing 11 and the partition wall 12.
- the ventilation fan 13 and the intake port 14 are provided for each block l la and l ib.
- a configuration in which the ventilation fan 13 and the intake port 14 are not provided may be used (see FIG. 2).
- the gas cutoff valve 2 may be configured to be exposed to the outside air without being covered by the casing (see FIG. 1).
- a plurality of gas cutoff valves controlled by the control unit 26 may be provided, and at least the most upstream gas cutoff valve may be provided in the block 11a.
- the block 11a may be a sealed space without providing the ventilation fan 13 and the intake port 14, and only the intake port 14 or the ventilation fan 13 and the intake port 14 may be provided on the block 1 lb side.
- the desulfurizer 27 described in the fourth and fifth embodiments is provided between the gas flow rate adjusting unit 3 and the fuel processor 15, the poisoning of the catalyst of the fuel processor 15 can be prevented. Therefore, as long as it is upstream of the fuel processor 15, it may be provided at any position regardless of the inside or outside of the block ib. However, it is preferable to provide a desulfurizer 27 on the downstream side of the gas shut-off valve 2 in order to detect the gas leak due to odor early when gas leaks from the gas shut-off valve 2.
- the odorous odorous component provided with the desulfurizer 27 is, for example, If nitrogen-containing isonitrile compounds are used! /, It is appropriate to install a remover that removes such odorants containing nitrogen components. A remover may be provided. If the odorant does not affect the catalyst provided in the fuel processor 15 or the fuel cell stack 19, it is not necessary to provide a remover.
- the ventilation fans 13 of the block 11a and the block l ib are provided on the same surface of the casing 11, and the respective intake air is disposed on the surface opposite to the surface.
- the force S at which the mouth 14 is provided is not limited to this position.
- the same surface as the ventilation fan 13 of the block 11a and the block Do not provide a block 1 lb air inlet 14 near the 1 la ventilation fan 13! /, Better!
- Embodiments 2 to 5 a plurality of gas shut-off valves are provided at the positions of the gas supply passages 1 leading to the combustors 4 and 16 in the same way as described in FIG. It's good!
- the desulfurizer 27 in the embodiment 45 is provided with a plurality of gas shut-off valves in order to detect gas leakage due to odor early. Of these, it is preferable to provide at least downstream of the most upstream gas shielding valve.
- the uppermost gas shut-off valve in the gas supply path 1 is controlled by the control unit 10 25 26 together with the gas shut-off valve downstream thereof, and corresponds to the gas shut-off valve in the microcomputer gas meter. is not.
- control unit 10 25 26 and the combustor 4 are disposed in the same casing 8, but by providing a partition wall or the like, between the control unit and the combustor May be spatially partitioned.
- the gas leakage detection unit 9 determines the presence or absence of leakage based on the detection signal from the gas leakage detection unit 9! /, And the gas leakage detection unit 9 is the control unit 10. 25 26 Send the detection signal, and detect the detection force and control unit 10 25 26. Check for leaks.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
- Feeding And Controlling Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/375,658 US8846268B2 (en) | 2006-08-22 | 2007-08-22 | Combustion apparatus, combustion processor, and fuel cell generating system |
JP2008530938A JP5147701B2 (ja) | 2006-08-22 | 2007-08-22 | 燃焼装置、燃料処理装置、及び燃料電池発電システム |
CN2007800283390A CN101501400B (zh) | 2006-08-22 | 2007-08-22 | 燃烧装置、燃料处理装置及燃料电池发电系统 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-225311 | 2006-08-22 | ||
JP2006225311 | 2006-08-22 |
Publications (1)
Publication Number | Publication Date |
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WO2008023729A1 true WO2008023729A1 (en) | 2008-02-28 |
Family
ID=39106814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/066268 WO2008023729A1 (en) | 2006-08-22 | 2007-08-22 | Combustion apparatus, fuel treatment device, and fuel cell power generating system |
Country Status (4)
Country | Link |
---|---|
US (1) | US8846268B2 (ja) |
JP (1) | JP5147701B2 (ja) |
CN (1) | CN101501400B (ja) |
WO (1) | WO2008023729A1 (ja) |
Cited By (6)
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JP2009115400A (ja) * | 2007-11-07 | 2009-05-28 | Panasonic Corp | 燃焼装置、燃料処理装置、及び燃料電池発電システム |
WO2010084776A1 (ja) * | 2009-01-23 | 2010-07-29 | パナソニック株式会社 | 燃料電池システム及びその運転方法 |
JP2014501888A (ja) * | 2010-10-22 | 2014-01-23 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 炭化水素ガス燃料装置に炭化水素ガスを制御可能に送出するためのシステムおよび方法 |
EP2429022A4 (en) * | 2009-05-08 | 2015-01-07 | Panasonic Corp | FUEL CELL SYSTEM |
WO2017154732A1 (ja) * | 2016-03-07 | 2017-09-14 | 昭和電工株式会社 | アンモニア分解装置及び水素ガス製造装置 |
JP2018120720A (ja) * | 2017-01-24 | 2018-08-02 | 大阪瓦斯株式会社 | エネルギ供給システム |
Families Citing this family (6)
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JP5659491B2 (ja) * | 2009-01-30 | 2015-01-28 | セントラル硝子株式会社 | フッ素ガス発生装置を含む半導体製造設備 |
JP6103052B2 (ja) * | 2013-06-14 | 2017-03-29 | 富士電機株式会社 | 燃料電池システム |
JP6317194B2 (ja) * | 2014-06-30 | 2018-04-25 | アイシン精機株式会社 | 燃焼装置および燃料電池システム |
JP2016109352A (ja) * | 2014-12-05 | 2016-06-20 | 三浦工業株式会社 | ボイラ装置 |
JP7334672B2 (ja) * | 2020-05-01 | 2023-08-29 | トヨタ自動車株式会社 | 水素漏れ検知機構 |
EP4108988A1 (en) * | 2021-06-24 | 2022-12-28 | BDR Thermea Group B.V. | Method and mechanism for controlling the operation of a boiler |
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JP2009115400A (ja) * | 2007-11-07 | 2009-05-28 | Panasonic Corp | 燃焼装置、燃料処理装置、及び燃料電池発電システム |
WO2010084776A1 (ja) * | 2009-01-23 | 2010-07-29 | パナソニック株式会社 | 燃料電池システム及びその運転方法 |
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JP2014501888A (ja) * | 2010-10-22 | 2014-01-23 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 炭化水素ガス燃料装置に炭化水素ガスを制御可能に送出するためのシステムおよび方法 |
WO2017154732A1 (ja) * | 2016-03-07 | 2017-09-14 | 昭和電工株式会社 | アンモニア分解装置及び水素ガス製造装置 |
JPWO2017154732A1 (ja) * | 2016-03-07 | 2019-01-10 | 昭和電工株式会社 | アンモニア分解装置及び水素ガス製造装置 |
JP2018120720A (ja) * | 2017-01-24 | 2018-08-02 | 大阪瓦斯株式会社 | エネルギ供給システム |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008023729A1 (ja) | 2010-01-14 |
US20090305098A1 (en) | 2009-12-10 |
US8846268B2 (en) | 2014-09-30 |
JP5147701B2 (ja) | 2013-02-20 |
CN101501400B (zh) | 2011-08-10 |
CN101501400A (zh) | 2009-08-05 |
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