CN113793949B - Power system for hydrogen fuel cell passenger car - Google Patents
Power system for hydrogen fuel cell passenger car Download PDFInfo
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- CN113793949B CN113793949B CN202110977662.4A CN202110977662A CN113793949B CN 113793949 B CN113793949 B CN 113793949B CN 202110977662 A CN202110977662 A CN 202110977662A CN 113793949 B CN113793949 B CN 113793949B
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- 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
- H01M8/04029—Heat exchange using liquids
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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
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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
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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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- 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
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- 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
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Abstract
The application relates to a power system for a hydrogen fuel cell passenger car, which relates to the field of hydrogen fuel cells and comprises a hydrogen storage device and a fuel cell module; the hydrogen storage device comprises a tank body and a first hydrogen storage container and a second hydrogen storage container which are arranged in the tank body, a heat insulation plate positioned between the first hydrogen storage container and the second hydrogen storage container is fixedly arranged in the tank body, a hydrogen conveying pipe is communicated between the first hydrogen storage container and the second hydrogen storage container, a check valve conveyed from the first hydrogen storage container to the second hydrogen storage container is arranged on the hydrogen conveying pipe, a first cooling liquid inlet and a first cooling liquid outlet are arranged on one side of the tank body close to the first hydrogen storage container, a heating liquid inlet and a heating liquid outlet are arranged on one side of the tank body close to the first hydrogen storage container, and a hydrogen supply pipe is communicated on the first hydrogen storage container; a hydrogen inlet pipe is communicated between the fuel cell module and the second hydrogen storage container, and a hydrogen outlet pipe is communicated between the fuel cell module and the hydrogen supply pipe. The hydrogen absorption process and the hydrogen desorption process are influenced in a reducing mode.
Description
Technical Field
The application relates to the field of hydrogen fuel cells, in particular to a power system for a hydrogen fuel cell passenger car.
Background
The hydrogen energy has the advantages of cleanness, high efficiency, renewability and the like, is a novel energy source which is generally concerned around the world, and shows good application prospect in the field of transportation in recent years.
At present, a hydrogen fuel cell is generally used as a power system of a passenger car, and electricity is generated by the hydrogen fuel cell to provide power for the passenger car. The principle of hydrogen fuel cell power generation is to convert chemical energy into electrical energy by catalytic oxidation of hydrogen and oxygen and to generate water without any pollution. When the hydrogen fuel cell power system operates, sufficient hydrogen is generally provided by the hydrogen storage alloy tank to react with oxygen in the galvanic pile, part of unreacted hydrogen is discharged from the galvanic pile, and in order to improve the utilization rate of the hydrogen, the hydrogen discharged from the galvanic pile is generally reflowed to the hydrogen storage tank.
The hydrogen storage alloy tank stores hydrogen by utilizing the chemical reaction of the hydrogen and the hydrogen storage metal, is a solid hydrogen storage technology and has the characteristics of low hydrogen storage pressure, high density, high hydrogen supply purity and the like. However, the hydrogen absorption process of the hydrogen storage metal is an exothermic reaction, the hydrogen absorption is slowed down or even the hydrogen absorption cannot be performed after the temperature in the hydrogen storage alloy tank rises, the hydrogen desorption process of the hydrogen storage metal is an endothermic reaction, and the hydrogen desorption process is limited after the temperature in the hydrogen storage alloy tank is reduced.
Disclosure of Invention
In order to help solving the problem that the temperature of the hydrogen absorption process of the hydrogen storage metal rises and the temperature of the hydrogen discharge process reduces, the influence on the hydrogen absorption process and the hydrogen discharge process is reduced, the application provides a power system for a hydrogen fuel cell passenger car.
The application provides a hydrogen fuel cell is driving system for passenger train adopts following technical scheme:
a power system for a hydrogen fuel cell passenger car comprises a hydrogen storage device and a fuel cell module;
the hydrogen storage device comprises a tank body, a first hydrogen storage container and a second hydrogen storage container which are fixedly arranged in the tank body, wherein hydrogen storage metal powder is filled in the first hydrogen storage container and the second hydrogen storage container, a heat insulation plate which divides the interior of the tank body into two parts is fixedly arranged in the tank body, the first hydrogen storage container and the second hydrogen storage container are respectively positioned at two sides of the heat insulation plate, a hydrogen conveying pipe is communicated between the first hydrogen storage container and the second hydrogen storage container, a one-way valve which is conveyed from the first hydrogen storage container to the second hydrogen storage container is arranged on the hydrogen conveying pipe, a first cooling liquid inlet and a first cooling liquid outlet are arranged at one side of the tank body close to the first hydrogen storage container, a heating liquid inlet and a heating liquid outlet are arranged at one side of the tank body close to the first hydrogen storage container, and a hydrogen supply pipe is communicated with the first hydrogen storage container;
the hydrogen storage device is characterized in that a hydrogen inlet pipe is communicated between the fuel cell module and the second hydrogen storage container, a hydrogen outlet pipe is communicated between the fuel cell module and the hydrogen supply pipe, a power supply loop is arranged on the fuel cell module, and the power supply loop is used for providing power for a passenger car.
By adopting the technical scheme, the first hydrogen storage container and the second hydrogen storage container are separated by the heat insulation plate, the first hydrogen storage container stores hydrogen through the hydrogen supply pipe, the second hydrogen storage container provides hydrogen required by reaction for the fuel cell module through the hydrogen inlet pipe, the hydrogen discharged by the fuel cell module flows back to the first hydrogen supply pipe through the hydrogen outlet pipe, so that the first hydrogen storage container mainly absorbs hydrogen, the second hydrogen storage container mainly releases hydrogen, and the hydrogen in the first hydrogen storage container can only flow to the second hydrogen storage container in a one-way manner through the hydrogen conveying pipe; after a first hydrogen storage container for absorbing hydrogen and a second hydrogen storage container for discharging hydrogen are separated, cooling liquid is introduced between a tank body and the first hydrogen storage container through a first cooling liquid inlet and then discharged from a first cooling liquid outlet, so that the first hydrogen storage container is cooled, heat discharged in the hydrogen absorbing process is discharged, and the hydrogen absorbing process in the first hydrogen storage container is promoted; simultaneously, the heating liquid is introduced between the tank body and the second hydrogen storage container through the heating liquid inlet and then discharged from the heating liquid outlet, the second hydrogen storage container is heated, the required heat is provided for the hydrogen discharge process, the hydrogen discharge process in the second hydrogen storage container is promoted, and therefore the problems that the temperature of the hydrogen storage metal hydrogen absorption process is increased and the temperature of the hydrogen discharge process is reduced are solved, and the influence on the hydrogen absorption process and the hydrogen discharge process is reduced.
Optionally, the heat circulation device further comprises a first cooling liquid circulation pipe and a first heating liquid circulation pipe, one end of the first cooling liquid circulation pipe is communicated with the first cooling liquid outlet, the other end of the first cooling liquid circulation pipe is communicated with the heating liquid inlet, one end of the first heating liquid circulation pipe is communicated with the heating liquid outlet, and the other end of the first heating liquid circulation pipe is communicated with the first cooling liquid inlet.
By adopting the technical scheme, the first cooling liquid circulating pipe is arranged between the first cooling liquid outlet and the heating liquid inlet, so that the cooling liquid can enter the outside of the second hydrogen storage container to release heat after absorbing heat outside the first hydrogen storage container; a first heating liquid circulating pipe is arranged between the first cooling liquid inlet and the heating liquid outlet, so that the heating liquid can enter the first hydrogen storage container to continuously absorb heat after releasing heat outside the second hydrogen storage container, and the heat is recycled.
Optionally, a second cooling liquid inlet and a second cooling liquid outlet are arranged on the fuel cell module, the thermal circulation device further comprises a second cooling liquid circulation pipe and a second heating liquid circulation pipe, one end of the second cooling liquid circulation pipe is communicated with the second cooling liquid outlet, the other end of the second cooling liquid circulation pipe is communicated with the first cooling liquid circulation pipe, one end of the second heating liquid circulation pipe is communicated with the first heating liquid circulation pipe, and the other end of the second heating liquid circulation pipe is communicated with the second cooling liquid inlet.
Through adopting above-mentioned technical scheme, need the coolant liquid to cool off in the fuel cell module reaction process, make the coolant liquid get into the outside heat of giving off of second hydrogen storage container after absorbing the heat in the fuel cell module to make partly heating fluid flow in the reaction process of second coolant liquid entry to fuel cell die holder after the outside heat of giving off of second hydrogen storage container and cool off, further realize thermal recycle.
Optionally, an annular cavity is formed between each of the first hydrogen storage container and the second hydrogen storage container and the inner wall of the tank body, a drainage plate is arranged in each annular cavity and is in a spiral shape, a spiral flow channel is formed in each annular cavity, the inner side of each drainage plate is fixedly connected with the first hydrogen storage container or the second hydrogen storage container, the outer side of each drainage plate is fixedly connected with the inner wall of the tank body, the first cooling liquid inlet and the first cooling liquid outlet are respectively communicated with the two ends of the external flow channel of the first hydrogen storage container, and the heating liquid inlet and the heating liquid outlet are respectively communicated with the two ends of the external flow channel of the second hydrogen storage container.
Through adopting above-mentioned technical scheme, all set up spiral helicine drainage plate in the annular cavity between first hydrogen storage container and jar body and between second hydrogen storage container and jar body, can make first hydrogen storage container and the outside spiral helicine flow path that all forms of second hydrogen storage container, prolonged the coolant liquid and at the outside flow time of first hydrogen storage container and heating fluid at second hydrogen storage container, strengthened the cooling effect of coolant liquid to first hydrogen storage container and the heating effect of heating fluid to second hydrogen storage container.
Optionally, the thermal cycling device further comprises an electric heater and a heat dissipation assembly, the electric heater is mounted on the first cooling liquid circulation pipe, and the heat dissipation assembly is mounted on the first heating liquid circulation pipe.
By adopting the technical scheme, because the heat is inevitably lost in the recycling process, the electric heater is arranged on the first cooling liquid circulating pipe, and the cooling liquid absorbing the heat can be heated and then introduced to the outside of the second hydrogen storage container to release the heat; set up radiator unit on first heating liquid circulating pipe, can be used for the cooling to the heating fluid after giving out the heat before the heat dissipation, ensure the heating effect of heating fluid and the cooling effect of coolant liquid, play the compensation to calorific loss.
Optionally, the heat dissipation assembly includes a heat dissipation box and a fan, the top surface of the heat dissipation box is open and located below the heating liquid outlet, the fan is installed at the opening of the top of the heat dissipation box, and one end of the first heating liquid circulation pipe, which is close to the heating liquid outlet, is communicated with the heat dissipation box.
Through adopting above-mentioned technical scheme, after heating fluid is in the outside exothermic heat of second hydrogen storage container, can flow to the heat dissipation incasement from the heating fluid export, the fan plays the radiating effect to the liquid in the heat dissipation incasement.
Optionally, the electric heater and the fan are both connected with a power supply loop.
Through adopting above-mentioned technical scheme, all be connected electric heater, fan with power supply loop, can make the fuel cell module all provide the required electric energy of self operation for electric heater and fan.
Optionally, the hydrogen outlet pipe is connected with a gas-liquid separation member.
Through adopting above-mentioned technical scheme, set up gas-liquid separation spare on going out the hydrogen pipe, can make hydrogen and liquid separation in going out the hydrogen pipe, detach the liquid that carelessly gets into in going out the hydrogen pipe, avoid liquid to get into in the first hydrogen storage container.
Optionally, the gas-liquid separation spare includes fluid-discharge tube and blast pipe, and the vertical setting of fluid-discharge tube, the fluid-discharge tube top and the one end intercommunication that the hydrogen pipe is close to the fuel cell module of going out, and the fluid-discharge tube bottom intercommunication has the drain box, and the blast pipe bottom is towards the direction slope that is close to the fluid-discharge tube, and communicates with the fluid-discharge tube middle part, and the blast pipe top communicates with the one end that the hydrogen pipe is close to the hydrogen supply pipe of going out.
Through adopting above-mentioned technical scheme, fuel cell module exhaust hydrogen can get into in the hydrogen pipe to flow to the fluid-discharge tube along the hydrogen pipe, the intraductal liquid of hydrogen of going out this moment can flow to the flowing back incasement along the vertical downward flow of fluid-discharge tube, because the one end slope that the blast pipe is close to the fluid-discharge tube is downward, liquid can not get into in the blast pipe, and hydrogen can follow the blast pipe and discharge and flow to in the hydrogen supply pipe, thereby detach the liquid in the hydrogen pipe.
Optionally, a heat insulation layer is fixedly arranged outside the tank body.
Through adopting above-mentioned technical scheme, set up the insulating layer in jar external portion and can play effectual thermal-insulated effect, reduce the heat loss of heat cycle process.
In summary, the present application includes at least one of the following beneficial technical effects:
the heat insulation plate is arranged in the tank body, the first hydrogen storage container for absorbing hydrogen and the second hydrogen storage container for releasing hydrogen are respectively arranged on two sides of the heat insulation plate, the first hydrogen storage container is cooled, and the second hydrogen storage container is heated, so that the problems of temperature rise in the hydrogen absorption process and temperature reduction in the hydrogen release process of the hydrogen storage metal are solved, and the influence on the hydrogen absorption process and the hydrogen release process is reduced;
the heat circulation device is arranged to realize the circulation and recycling of heat;
by arranging the drainage plate, spiral flow channels are formed outside the first hydrogen storage container and the second hydrogen storage container, so that the cooling effect of cooling liquid on the first hydrogen storage container and the heating effect of heating liquid on the second hydrogen storage container are enhanced;
through setting up gas-liquid separation spare, can detach the liquid that carelessly gets into in the hydrogen pipe, avoid liquid to get into in the first hydrogen storage container.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a partially enlarged view of a point a in fig. 1.
Description of the reference numerals: 1. a hydrogen storage device; 11. a tank body; 111. a heat insulation plate; 112. a drainage plate; 113. a first coolant inlet; 114. a first coolant outlet; 115. a heating fluid inlet; 116. a heating fluid outlet; 117. a thermal insulation layer; 12. a first hydrogen storage vessel; 121. a hydrogen storage metal powder; 122. a hydrogen transport pipe; 123. a one-way valve; 124. a hydrogen supply pipe; 1241. a first solenoid valve; 13. a second hydrogen storage vessel; 131. a hydrogen inlet pipe; 1311. a second solenoid valve; 2. a fuel cell module; 21. a hydrogen outlet pipe; 22. a gas-liquid separation member; 221. a liquid discharge pipe; 2211. a liquid discharge tank; 222. an exhaust pipe; 23. a power supply loop; 24. a second coolant inlet; 25. a second coolant outlet; 3. a thermal cycling device; 31. a first cooling liquid circulation pipe; 32. a first heating liquid circulation pipe; 33. a second cooling liquid circulation pipe; 34. a second heating liquid circulation pipe; 35. an electric heater; 36. a heat dissipating component; 361. a heat dissipation box; 362. a fan.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a power system for a hydrogen fuel cell bus. Referring to fig. 1, a power system for a hydrogen fuel cell passenger car comprises a hydrogen storage device 1, a fuel cell module 2 and a thermal cycling device 3, wherein the hydrogen storage device 1 is used for providing hydrogen required by reaction for the fuel cell module 2, the fuel cell module 2 is connected with a power supply loop 23, and the thermal cycling device 3 is connected with the hydrogen storage device 1.
Referring to fig. 1, a hydrogen storage device 1 comprises a tank 11, a first hydrogen storage container 12 and a second hydrogen storage container 13, wherein the tank 11 is circular in cross section and hollow inside, the tank 11 is vertically arranged, a horizontal heat insulation plate 111 is arranged at the center inside the tank 11, the diameter of the heat insulation plate 111 is equal to the inner diameter of the tank 11, the heat insulation plate 111 is fixedly connected with the tank 11, and a heat insulation layer 117 is fixedly sleeved outside the tank 11; the first hydrogen storage container 12 is located below the heat insulation board 111, the second hydrogen storage container 13 is located above the heat insulation board 111, the first hydrogen storage container 12 and the second hydrogen storage container 13 are both cylindrical and are coaxially arranged with the tank body 11, the outer diameters of the first hydrogen storage container 12 and the second hydrogen storage container 13 are equal and are both smaller than the inner diameter of the tank body 11, the bottom end of the first hydrogen storage container 12 is fixedly connected with the bottom end of the tank body 11, the top end of the first hydrogen storage container is fixedly connected with the heat insulation board 111, the bottom end of the second hydrogen storage container 13 is fixedly connected with the heat insulation board 111, the top end of the second hydrogen storage container is fixedly connected with the top end of the tank body 11, an annular cavity is formed between the first hydrogen storage container 12 and the inner wall of the tank body 11, and hydrogen storage metal powder 121 is filled in the first hydrogen storage container 12 and the second hydrogen storage container 13.
Referring to fig. 1 and 2, the bottom end of the first hydrogen storage container 12 is communicated with a hydrogen supply pipe 124, a first electromagnetic valve 1241 is installed on the hydrogen supply pipe 124, and the first electromagnetic valve 1241 is connected with the power supply circuit 23. A hydrogen conveying pipe 122 is communicated between the first hydrogen storage container 12 and the second hydrogen storage container 13, a one-way valve 123 conveyed from the first hydrogen storage container 12 to the second hydrogen storage container 13 is installed on the hydrogen conveying pipe 122, and the one-way valve 123 is connected with the power supply loop 23. A hydrogen inlet pipe 131 is communicated between the top end of the second hydrogen storage container 13 and the fuel cell module 2, a second electromagnetic valve 1311 is installed on the hydrogen inlet pipe 131, and the second electromagnetic valve 1311 is connected with the power supply circuit 23. The hydrogen outlet pipe 21 communicates between the fuel cell module 2 and the hydrogen supply pipe 124.
Hydrogen enters the first hydrogen storage container 12 from the hydrogen supply pipe 124 for storage, hydrogen in the first hydrogen storage container 12 can enter the second hydrogen storage container 13 through the hydrogen conveying pipe 122 and the one-way valve 123, then is discharged from the second hydrogen storage container 13, and enters the fuel cell module 2 through the hydrogen inlet pipe 131 to react with oxygen for power generation, unreacted hydrogen in the fuel cell module 2 can flow back to the hydrogen supply pipe 124 through the hydrogen outlet pipe 21, and then enters the first hydrogen storage container 12 for storage again.
Referring to fig. 1, a drainage plate 112 is disposed in the annular cavity between the first hydrogen storage container 12 and the inner wall of the tank 11 and between the second hydrogen storage container 13 and the inner wall of the tank 11, the drainage plate 112 is spiral and coaxial with the tank 11, the drainage plate 112 forms a spiral flow channel in the annular cavity, the inner side of the drainage plate 112 is fixedly connected with the first hydrogen storage container 12 or the second hydrogen storage container 13, and the outer side of the drainage plate 112 is fixedly connected with the inner wall of the tank 11. A first cooling liquid inlet 113 is arranged at the bottom end of the flow channel on the tank 11 outside the first hydrogen storage container 12, a first cooling liquid outlet 114 is arranged at the top end of the flow channel on the tank 11 outside the first hydrogen storage container 12, a heating liquid inlet 115 is arranged at the bottom end of the flow channel on the tank 11 outside the second hydrogen storage container 13, and a heating liquid outlet 116 is arranged at the top end of the flow channel on the tank 11 outside the second hydrogen storage container 13.
Referring to fig. 1, the thermal cycle device 3 includes a first cooling liquid circulation pipe 31, a first heating liquid circulation pipe 32, an electric heater 35, and a heat dissipation assembly 36, the first cooling liquid circulation pipe 31 having one end communicating with a first cooling liquid outlet 114 and the other end communicating with a heating liquid inlet 115; the electric heater 35 is installed on the first cooling liquid circulation pipe 31 and connected to the power supply circuit 23; the heat dissipating module 36 includes a heat dissipating box 361 and a fan 362, the heat dissipating box 361 has an open top and is located below the heating liquid outlet 116, the fan 362 is installed at the open top of the heat dissipating box 361 and is connected to the power supply circuit 23, one end of the first heating liquid circulating pipe 32 is communicated with the heat dissipating box 361, and the other end is communicated with the first cooling liquid inlet 113.
The hydrogen absorption process of the hydrogen storage metal is exothermic reaction, and the hydrogen desorption process is endothermic reaction. During reaction, after hydrogen enters the first hydrogen storage container 12, cooling liquid enters the flow channel between the first hydrogen storage container 12 and the inner wall of the tank body 11 from the first cooling liquid inlet 113 and flows out from the first cooling liquid outlet 114 along the flow channel, so that the first hydrogen storage container 12 is cooled, heat released in the hydrogen absorption process is taken away, and the effect of promoting the hydrogen absorption reaction in the first hydrogen storage container 12 is achieved; after hydrogen enters the second hydrogen storage container 13, the cooling liquid becomes heating liquid after being heated by the electric heater 35, and enters the flow channel between the second hydrogen storage container 13 and the inner wall of the tank body 11 from the heating liquid inlet 115 along the first cooling liquid circulation pipe 31, and flows out from the heating liquid outlet 116 along the flow channel, thereby playing a heating role on the second hydrogen storage container 13, providing required heat for the hydrogen discharge process in the second hydrogen storage container 13, and promoting the hydrogen discharge process, at the moment, the heating liquid flows out and then is radiated by the heat radiation component 36, and the heating liquid returns to the first cooling liquid inlet 113 again through the first heating liquid circulation pipe 32 after being radiated, so that a circulation process of heat in the cooling liquid and the heating liquid is formed.
Referring to fig. 1, the fuel cell module 2 is provided with a second cooling liquid inlet 24 and a second cooling liquid outlet 25, and the thermal cycling device 3 further comprises a second cooling liquid circulating pipe 33 and a second heating liquid circulating pipe 34, wherein one end of the second cooling liquid circulating pipe 33 is communicated with the second cooling liquid outlet 25, and the other end is communicated with one end of the first cooling liquid circulating pipe 31 close to the first cooling liquid outlet 114; the second heating liquid circulation pipe 34 has one end communicating with the first heating liquid circulation pipe 32 and the other end communicating with the second cooling liquid inlet 24.
During reaction, the cooling liquid flows into the second cooling liquid circulating pipe 33 from the second cooling liquid outlet 25 after absorbing heat in the fuel cell module 2, is mixed with the cooling liquid flowing out from the first cooling liquid outlet 114, is heated by the electric heater 35 to form heating liquid, and provides heat for the hydrogen discharge process in the second hydrogen storage container 13; after the heating liquid is cooled into cooling liquid by the heat dissipation device, one part of the heating liquid flows into the first cooling liquid inlet 113 through the first heating liquid circulation pipe 32 to play a cooling role in the hydrogen storage process in the first hydrogen storage container 12, and the other part of the heating liquid flows through the second heating liquid circulation pipe 34; flows into the second cooling liquid inlet 24 to cool the reaction of hydrogen and oxygen in the fuel cell module 2, thereby forming a circulation process of cooling liquid and heating liquid.
Referring to fig. 1, the gas-liquid separator 22 is connected to the hydrogen outlet pipe 21, the gas-liquid separator 22 includes a liquid discharge pipe 221 and an exhaust pipe 222, the liquid discharge pipe 221 is vertically disposed, the top end of the liquid discharge pipe 221 is communicated with one end of the hydrogen outlet pipe 21 close to the fuel cell module 2, the bottom end of the liquid discharge pipe 221 is communicated with a liquid discharge tank 2211, the bottom end of the exhaust pipe 222 is inclined toward the direction close to the liquid discharge pipe 221 and is communicated with the middle of the liquid discharge pipe 221, and the top end of the exhaust pipe 222 is communicated with one end of the hydrogen outlet pipe 21 close to the hydrogen supply pipe 124.
After the unreacted hydrogen in the fuel cell module 2 flows out from the hydrogen outlet pipe 21, the unreacted hydrogen flows into the liquid discharge pipe 221, the liquid in the hydrogen outlet pipe 21 flows vertically downward into the liquid discharge tank 2211 along the liquid discharge pipe 221, and the hydrogen flows into one end of the hydrogen outlet pipe 21 close to the hydrogen supply pipe 124 from the gas exhaust pipe 222, so that the liquid which carelessly enters the hydrogen outlet pipe 21 is removed.
The implementation principle of the power system for the hydrogen fuel cell bus in the embodiment of the application is as follows: during the reaction, after hydrogen enters the first hydrogen storage container 12 from the hydrogen supply pipe 124, the cooling liquid takes away heat released in the hydrogen absorption process in the flow passage between the first hydrogen storage container 12 and the inner wall of the tank body 11, and the effect of promoting the hydrogen absorption reaction in the first hydrogen storage container 12 is achieved; after hydrogen got into second hydrogen storage container 13, the coolant liquid becomes heating liquid after electric heater 35 heats, and provide required heat for the process of putting out hydrogen in the flow path between second hydrogen storage container 13 and jar body 11 inner wall, play the promotion effect to the process of putting out hydrogen, and become the coolant liquid again after heat dissipation through radiator unit 36 after the heating liquid flows out, thereby cool off first hydrogen storage container 12 through the thermal circulation process in coolant liquid and the heating liquid, heat second hydrogen storage container 13 simultaneously, help solving the problem that hydrogen storage metal hydrogen absorption process temperature risees and put hydrogen process temperature and reduce, reduce the influence that causes hydrogen absorption process and hydrogen process.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A power system for a hydrogen fuel cell passenger car is characterized in that: comprises a hydrogen storage device (1) and a fuel cell module (2);
the hydrogen storage device (1) comprises a tank body (11), a first hydrogen storage container (12) and a second hydrogen storage container (13) which are fixedly arranged in the tank body (11), hydrogen storage metal powder (121) is filled in the first hydrogen storage container (12) and the second hydrogen storage container (13), hydrogen is discharged when the temperature is high, and hydrogen is absorbed when the temperature is low, a heat insulation plate (111) which separates the interior of the tank body (11) into two parts is fixedly arranged in the tank body (11), the first hydrogen storage container (12) and the second hydrogen storage container (13) are respectively positioned at two sides of the heat insulation plate (111), a hydrogen conveying pipe (122) is communicated between the first hydrogen storage container (12) and the second hydrogen storage container (13), a one-way valve (123) conveyed from the first hydrogen storage container (12) to the second hydrogen storage container (13) is arranged on the hydrogen conveying pipe (122), a first cooling liquid inlet (113) and a first cooling liquid outlet (114) are arranged at one side of the tank body (11) close to the first hydrogen storage container (12), and a first heating liquid supply inlet (116) and a first hydrogen supply pipe (124) are arranged at one side of the tank (11);
a hydrogen inlet pipe (131) is communicated between the fuel cell module (2) and the second hydrogen storage container (13), a hydrogen outlet pipe (21) is communicated between the fuel cell module (2) and the hydrogen supply pipe (124), a power supply loop (23) is arranged on the fuel cell module (2), and the power supply loop (23) is used for providing power for a passenger car;
the heat circulating device (3) comprises a first cooling liquid circulating pipe (31) and a first heating liquid circulating pipe (32), one end of the first cooling liquid circulating pipe (31) is communicated with a first cooling liquid outlet (114), the other end of the first cooling liquid circulating pipe is communicated with a heating liquid inlet (115), one end of the first heating liquid circulating pipe (32) is communicated with a heating liquid outlet (116), and the other end of the first heating liquid circulating pipe is communicated with a first cooling liquid inlet (113);
the fuel cell module (2) is provided with a second cooling liquid inlet (24) and a second cooling liquid outlet (25), the heat circulating device (3) further comprises a second cooling liquid circulating pipe (33) and a second heating liquid circulating pipe (34), one end of the second cooling liquid circulating pipe (33) is communicated with the second cooling liquid outlet (25), the other end of the second cooling liquid circulating pipe is communicated with the first cooling liquid circulating pipe (31), one end of the second heating liquid circulating pipe (34) is communicated with the first heating liquid circulating pipe (32), and the other end of the second heating liquid circulating pipe is communicated with the second cooling liquid inlet (24);
first hydrogen storage container (12) are used for inhaling hydrogen, and second hydrogen storage container (13) are used for putting hydrogen, cool first hydrogen storage container (12) to heating second hydrogen storage container (13), help solving hydrogen storage metal powder (121) and inhale the problem that hydrogen process temperature risees and put hydrogen process temperature reduction, reduce the influence that causes hydrogen process and hydrogen process of putting.
2. The power system for a hydrogen fuel cell passenger car according to claim 1, characterized in that: the first hydrogen storage container (12) and the second hydrogen storage container (13) form an annular cavity with the inner wall of the tank body (11), a drainage plate (112) is arranged in the annular cavity, the drainage plate (112) is spiral, a spiral flow channel is formed in the annular cavity, the inner side of the drainage plate (112) is fixedly connected with the first hydrogen storage container (12) or the second hydrogen storage container (13), the outer side of the drainage plate (112) is fixedly connected with the inner wall of the tank body (11), a first cooling liquid inlet (113) and a first cooling liquid outlet (114) are respectively communicated with two ends of the external flow channel of the first hydrogen storage container (12), and a heating liquid inlet (115) and a heating liquid outlet (116) are respectively communicated with two ends of the external flow channel of the second hydrogen storage container (13).
3. The power system for a hydrogen fuel cell passenger car according to claim 1, characterized in that: the heat circulating device (3) further comprises an electric heater (35) and a heat dissipation assembly (36), the electric heater (35) is installed on the first cooling liquid circulating pipe (31), and the heat dissipation assembly (36) is installed on the first heating liquid circulating pipe (32).
4. The power system for a hydrogen fuel cell passenger car according to claim 3, characterized in that: the heat dissipation assembly (36) comprises a heat dissipation box (361) and a fan (362), the top surface of the heat dissipation box (361) is open and located below the heating liquid outlet (116), the fan (362) is installed at the top opening of the heat dissipation box (361), and one end, close to the heating liquid outlet (116), of the first heating liquid circulation pipe (32) is communicated with the heat dissipation box (361).
5. The power system for a hydrogen fuel cell passenger car according to claim 4, characterized in that: the electric heater (35) and the fan (362) are both connected with the power supply loop (23).
6. The power system for a hydrogen fuel cell passenger car according to claim 1, characterized in that: the hydrogen outlet pipe (21) is connected with a gas-liquid separation piece (22).
7. The power system for a hydrogen fuel cell passenger car according to claim 6, characterized in that: the gas-liquid separation piece (22) comprises a liquid discharge pipe (221) and an exhaust pipe (222), the liquid discharge pipe (221) is vertically arranged, the top end of the liquid discharge pipe (221) is communicated with one end, close to the fuel cell module (2), of the hydrogen outlet pipe (21), a liquid discharge box (2211) is communicated with the bottom end of the liquid discharge pipe (221), the bottom end of the exhaust pipe (222) inclines towards the direction close to the liquid discharge pipe (221) and is communicated with the middle of the liquid discharge pipe (221), and the top end of the exhaust pipe (222) is communicated with one end, close to the hydrogen supply pipe (124), of the hydrogen outlet pipe (21).
8. The power system for a hydrogen fuel cell passenger car according to claim 1, characterized in that: and a heat insulation layer (117) is fixedly arranged outside the tank body (11).
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| JPH10267454A (en) * | 1997-03-21 | 1998-10-09 | Nippon Steel Corp | Travel layer reaction heat recovery device of hydrogen occlusion alloy |
| JP2000128502A (en) * | 1998-10-22 | 2000-05-09 | Honda Motor Co Ltd | Hydrogen filling method to hydrogen storage tank of automobile |
| JP2001213607A (en) * | 2000-01-28 | 2001-08-07 | Honda Motor Co Ltd | Hydrogen supply system for device using hydrogen as fuel |
| JP2003086227A (en) * | 2001-09-13 | 2003-03-20 | Mitsubishi Heavy Ind Ltd | Power generation method using fuel cell and power generation system using power generation method |
| JP4675029B2 (en) * | 2003-03-17 | 2011-04-20 | トヨタ自動車株式会社 | Fuel cell system and hydrogen storage method |
| JP4484243B2 (en) * | 2004-09-27 | 2010-06-16 | 株式会社豊田自動織機 | Method of using hydrogen storage tank and fuel cell system |
| CN201415071Y (en) * | 2009-06-18 | 2010-03-03 | 中芯国际集成电路制造(上海)有限公司 | Pipeline component for gas-liquid separation |
| EP3637015A4 (en) * | 2017-06-06 | 2020-04-15 | Panasonic Corporation | Heat-storage system and heat-storage system operation method |
| CN109014220A (en) * | 2018-08-21 | 2018-12-18 | 刘洋 | A kind of the circulation hydrogenation and dehydrogenization Preparation equipment and method of hypoxemia metal powder |
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