CN112038669A - Apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing - Google Patents
Apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing Download PDFInfo
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- CN112038669A CN112038669A CN202010839032.6A CN202010839032A CN112038669A CN 112038669 A CN112038669 A CN 112038669A CN 202010839032 A CN202010839032 A CN 202010839032A CN 112038669 A CN112038669 A CN 112038669A
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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
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04253—Means for solving freezing problems
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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
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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
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
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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
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04268—Heating of fuel cells during the start-up of the 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
- 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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- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing, the apparatus comprising a heating assembly, a position adjustment assembly, and a stirring adjustment assembly; the two groups of heating assemblies are arranged on the two sides of the cell stack in a sliding manner through the position adjusting assemblies; the stirring adjusting component is connected to the two groups of heating components. The heating assembly is arranged, so that on one hand, the cell stack is heated from the outside by conducting heat through the heating plate, on the other hand, the cell stack is heated from the inside by heating cooling water which is input into the cell stack and is heated from the inside, so that the cell stack quickly reaches the reaction temperature, the icing inside the cell is effectively avoided, and the performance of the cell is ensured; the position adjusting assembly is arranged, the water storage tank moves back and forth, the position of external heat conduction is adjusted, uniform heating is achieved, local heating can be achieved when necessary, and flexibility is high; set up stirring adjustment assembly, through the rotation of stirring spare for the mixture of cooling water realizes the even heating, improves the speed and the effect of heating.
Description
Technical Field
The present invention relates to the field of new energy, and more particularly to an apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing.
Background
The hydrogen fuel cell directly converts chemical energy into electric energy, the final generating efficiency can reach 45-60%, and the hydrogen fuel cell has the advantages of high power density, low working temperature, high response speed, convenience in operation, safety, reliability and the like, and has wide application prospect and huge market potential in the traffic field. Fuel cells as automotive power must withstand complex conditions and harsh environments of start-stop, cold start (or sub-zero start), high potential, voltage cycling, large current, air impurities, etc., where cold start is a major obstacle that restricts the commercialization of hydrogen fuel cells. During the starting process of the hydrogen fuel cell at the subzero temperature, water generated by reaction can freeze in the fuel cell, cover the surface of the catalytic layer, reduce the electrochemical active area, influence the performance of the fuel cell, and even cause the starting failure.
To address the above-mentioned problems, an apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing is presented herein.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a device and a method for preventing water in hydrogen fuel cell power equipment from freezing, wherein a heating assembly is arranged in the device, on one hand, the cell stack is heated from the outside by heat conduction of a heating plate, on the other hand, cooling water is input into the cell stack by heating the cooling water, and the cell stack is heated from the inside, so that the cell stack can reach the reaction temperature quickly, the freezing in the cell is effectively avoided, and the performance of the cell is ensured; the position adjusting assembly is arranged, the water storage tank moves back and forth, the position of external heat conduction is adjusted, uniform heating is achieved, local heating can be achieved when necessary, and flexibility is high; set up stirring adjustment assembly, through the rotation of stirring spare for the mixture of cooling water realizes the even heating, improves the speed and the effect of heating.
(II) technical scheme
In order to solve the above problems, the present invention provides an apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing, the apparatus comprising a heating assembly, a position adjustment assembly, and a stirring adjustment assembly; the two groups of heating assemblies are arranged on the two sides of the cell stack in a sliding manner through the position adjusting assemblies; the stirring adjusting components are connected to the two groups of heating components; the heating component comprises a water storage tank, a stirring shaft, a stirring piece and a heating plate; the water storage tank is connected with the outer wall of the battery end in a sliding manner along the horizontal direction and is respectively communicated with a cooling water inlet pipe and a cooling water outlet pipe (not shown in the figure) of the battery stack through water pipes; the heating plate is arranged on the contact end of the water storage tank and the cell stack; the vertically arranged stirring shaft is rotatably arranged inside the water storage tank; the stirring piece is arranged on the stirring shaft; the position adjusting assembly comprises a threaded rod, a moving block, a rotating rod, a mounting groove and a first driving motor; the mounting grooves are arranged in two groups corresponding to the water storage tank, the two groups of mounting grooves are connected to the cell stack, and a group of threaded rods is rotatably arranged in each group of mounting grooves; reverse threads are arranged at the upper end and the lower end of the threaded rod which is driven by the first driving motor; the moving blocks are respectively arranged at the upper end and the lower end of each group of threaded rods and are in threaded connection with the corresponding ends; the rotating rod is positioned between the mounting groove and the water storage tank on the same side, one end of the rotating rod is rotatably connected with the water storage tank, and the other end of the rotating rod is rotatably connected with the moving block; the stirring adjusting assembly comprises a mounting plate, a sliding piece and a second driving motor; the mounting plate is arranged below the cell stack; the lower ends of the two stirring shafts driven by the second driving motor extend out of the water storage tank through the sealing bearing and are rotatably connected with the two ends of the mounting plate; the slider sets up in the upper end of mounting panel, and with cell stack bottom sliding connection.
Preferably, the heating assembly further comprises a slide rail; the slide rail is arranged on the cell stack; the water storage tank is connected with the slide rail in a sliding way.
Preferably, the stirring piece comprises a connecting rod, a rotating sleeve and a blade; one end of the connecting rod is connected with the side wall of the stirring shaft; the rotating sleeve is rotatably connected to one end of the connecting rod, which is far away from the stirring shaft; the paddle is arranged on the rotating sleeve.
Preferably, the connecting rod is arranged obliquely.
Preferably, the position adjusting assembly further comprises a connecting plate; the connecting plate is arranged between the two sets of mounting grooves; first driving motor sets up on the connecting plate, and connects the threaded rod of both sides through belt transmission.
Preferably, the moving block is connected with the groove wall of the mounting groove in a sliding mode in the vertical direction.
Preferably, the second driving motor is arranged on the mounting plate and is connected with the stirring shafts on two sides through a belt in a transmission manner.
Preferably, the sliding part comprises a telescopic rod, a mounting seat and a ball; the telescopic rod is arranged on the mounting plate; the mounting seat is arranged at the upper end of the telescopic rod; the ball is rotationally arranged on the mounting seat.
Preferably, the slider further comprises an elastic member; the elastic piece is sleeved outside the telescopic rod, the upper end of the elastic piece is connected with the mounting seat, and the lower end of the elastic piece is connected with the mounting plate.
An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing as described above, the method comprising the steps of:
s1, mounting the equipment on a cell stack, adding cooling water into a water storage tank, and communicating the water storage tank with a water inlet pipe and a water outlet pipe on the cell stack;
s2, before cold start of the battery stack, starting the equipment; the heating plate is electrified to heat the cooling water, the stirring piece is driven by the stirring shaft to rotate and rotate at the same time to accelerate the mixing of cold water and hot water, the heated cooling water enters the battery stack to heat the battery stack from the inside, and finally returns to the water storage tank; the threaded rod rotates to drive the moving block to move up and down, the rotating rod is pushed to rotate, the water storage tank moves back and forth, and the battery stack is heated from the outside;
and S3, when the temperature monitoring equipment detects that the temperature of the cell stack reaches 60-80 ℃, the equipment stops working, and the cell stack starts to start.
The technical scheme of the invention has the following beneficial technical effects:
the heating assembly is arranged, so that on one hand, the cell stack is heated from the outside by conducting heat through the heating plate, on the other hand, the cell stack is heated from the inside by heating cooling water which is input into the cell stack and is heated from the inside, so that the cell stack quickly reaches the reaction temperature, the icing inside the cell is effectively avoided, and the performance of the cell is ensured;
the invention is provided with the position adjusting assembly, the position of external heat conduction is adjusted by moving the water storage tank back and forth, uniform heating is realized, local heating can be performed if necessary, and the flexibility is strong;
and thirdly, the stirring adjusting assembly is arranged, so that the cooling water is mixed quickly by the rotation of the stirring piece, uniform heating is realized, and the heating speed and effect are improved.
Drawings
Fig. 1 is a cross-sectional view of an apparatus and method for preventing water in a hydrogen fuel cell power plant according to the present invention from freezing.
Fig. 2 is a top view of an apparatus and method for preventing water in a hydrogen fuel cell power plant according to the present invention from freezing.
Fig. 3 is a bottom view of the apparatus and method for preventing water in a hydrogen fuel cell power plant according to the present invention from freezing.
Fig. 4 is a side view of an apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with the present invention.
Fig. 5 is an enlarged view of the device stirring member in the device and method for preventing water in a hydrogen fuel cell power plant according to the present invention from freezing.
Fig. 6 is an enlarged view of the equipment skid in an apparatus and method for preventing water in a hydrogen fuel cell power plant according to the present invention from freezing.
The attached drawings are marked as follows: 1. a heating assembly; 2. a position adjustment assembly; 3. a stirring adjustment assembly; 4. a water storage tank; 5. a stirring shaft; 6. a stirring member; 7. a connecting rod; 8. rotating the sleeve; 9. a paddle; 10. heating plates; 11. a slide rail; 12. a threaded rod; 13. a moving block; 14. rotating the rod; 15. mounting grooves; 16. a first drive motor; 17. a connecting plate; 18. mounting a plate; 19. a slider; 20. a second drive motor; 21. a telescopic rod; 22 a mounting seat; 23. a ball bearing; 24. an elastic member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 6, the present invention provides an apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing, the apparatus comprising a heating assembly 1, a position adjusting assembly 2, and a stirring adjusting assembly 3; the two groups of heating assemblies 1 are arranged, and the two groups of heating assemblies 1 are arranged on two sides of the cell stack in a sliding manner through the position adjusting assemblies 2; the stirring adjusting component 3 is connected to the two groups of heating components 1; the heating component 1 comprises a water storage tank 4, a stirring shaft 5, a stirring piece 6 and a heating plate 10; the water storage tank 4 is connected with the outer wall of the battery end in a sliding way along the horizontal direction and is respectively communicated with a cooling water inlet pipe and a cooling water outlet pipe (not shown in the figure) of the battery stack through water pipes; the heating plate 10 is arranged on the contact end of the water storage tank 4 and the cell stack; the vertically arranged stirring shaft 5 is rotatably arranged inside the water storage tank 4; the stirring piece 6 is arranged on the stirring shaft 5; the position adjusting assembly 2 comprises a threaded rod 12, a moving block 13, a rotating rod 14, a mounting groove 15 and a first driving motor 16; the mounting grooves 15 are arranged in two groups corresponding to the water storage tanks 4, the two groups of mounting grooves 15 are connected to the cell stack, and a group of threaded rods 12 are rotatably arranged in each group of mounting grooves 15; the upper end and the lower end of the threaded rod 12 driven by the first driving motor 16 are provided with reverse threads; the moving blocks 13 are respectively arranged at the upper end and the lower end of each group of threaded rods 12 and are in threaded connection with the corresponding ends; the rotating rod 14 is positioned between the mounting groove 15 and the water storage tank 4 on the same side, one end of the rotating rod is rotatably connected with the water storage tank 4, and the other end of the rotating rod is rotatably connected with the moving block 13; the stirring adjustment assembly 3 comprises a mounting plate 18, a sliding piece 19 and a second driving motor 20; the mounting plate 18 is disposed below the cell stack; the lower ends of the two stirring shafts 5 driven by the second driving motor 20 extend out of the water storage tank 4 through sealed bearings and are rotatably connected with the two ends of the mounting plate 18; the sliding member 19 is disposed at the upper end of the mounting plate 18 and is slidably connected to the bottom end of the cell stack.
In an alternative embodiment, the heating assembly 1 further comprises a slide rail 11; the slide rail 11 is arranged on the cell stack; the water storage tank 4 is connected with the slide rail 11 in a sliding way.
In an alternative embodiment, the stirring element 6 comprises a connecting rod 7, a rotating sleeve 8 and a blade 9; one end of the connecting rod 7 is connected with the side wall of the stirring shaft 5; the rotating sleeve 8 is rotatably connected to one end of the connecting rod 7 far away from the stirring shaft 5; the paddle 9 is arranged on the rotating sleeve 8.
In an alternative embodiment, the connecting rod 7 is arranged obliquely.
In an alternative embodiment, the position adjustment assembly 2 further comprises a connection plate 17; the connecting plate 17 is arranged between the two sets of mounting grooves 15; the first driving motor 16 is arranged on the connecting plate 17 and is connected with the threaded rods 12 on two sides through belt transmission.
In an alternative embodiment, the moving block 13 is slidably connected to the groove wall of the mounting groove 15 in a vertical direction.
In an alternative embodiment, the second driving motor 20 is disposed on the mounting plate 18 and is connected to the stirring shafts 5 on both sides by a belt drive.
In an alternative embodiment, the slider 19 comprises a telescopic rod 21, a mounting 22 and a ball 23; the telescopic rod 21 is arranged on the mounting plate 18; the mounting seat 22 is arranged at the upper end of the telescopic rod 21; the balls 23 are rotatably disposed on the mounting seat 22.
In an alternative embodiment, the slider 19 further comprises an elastic member 24; the elastic member 24 is sleeved outside the telescopic rod 21, and the upper end of the elastic member is connected with the mounting seat 22, and the lower end of the elastic member is connected with the mounting plate 18.
An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing as described above, the method comprising the steps of:
s1, mounting the equipment on a cell stack, adding cooling water into the water storage tank 4, and communicating the water storage tank 4 with a water inlet pipe and a water outlet pipe on the cell stack;
s2, before cold start of the battery stack, starting the equipment; the heating plate 10 is electrified to heat the cooling water, the stirring piece 6 is driven by the stirring shaft 5 to rotate and rotate at the same time to accelerate the mixing of cold water and hot water, the heated cooling water enters the battery stack to heat the battery stack from the inside, and finally returns to the water storage tank 4; the threaded rod 12 rotates to drive the moving block 13 to move up and down, the rotating rod 14 is pushed to rotate, the water storage tank 4 moves back and forth, and the cell stack is heated from the outside;
and S3, when the temperature monitoring equipment detects that the temperature of the cell stack reaches 60-80 ℃, the equipment stops working, and the cell stack starts to start.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing, characterized in that the apparatus comprises a heating assembly (1), a position adjustment assembly (2) and a stirring adjustment assembly (3); the two groups of heating assemblies (1) are arranged, and the two groups of heating assemblies (1) are arranged on two sides of the cell stack in a sliding manner through the position adjusting assemblies (2); the stirring adjusting components (3) are connected to the two groups of heating components (1);
the heating component (1) comprises a water storage tank (4), a stirring shaft (5), a stirring piece (6) and a heating plate (10); the water storage tank (4) is connected with the outer wall of the battery end in a sliding way along the horizontal direction and is respectively communicated with a cooling water inlet pipe and a cooling water outlet pipe (not shown in the figure) of the battery stack through water pipes; the heating plate (10) is arranged on the contact end of the water storage tank (4) and the cell stack; the vertically arranged stirring shaft (5) is rotatably arranged inside the water storage tank (4); the stirring piece (6) is arranged on the stirring shaft (5);
the position adjusting component (2) comprises a threaded rod (12), a moving block (13), a rotating rod (14), a mounting groove (15) and a first driving motor (16); the mounting grooves (15) are arranged in two groups corresponding to the water storage tank (4), the two groups of mounting grooves (15) are connected to the cell stack, and a group of threaded rods (12) are rotatably arranged in each group of mounting grooves (15); reverse threads are arranged at the upper end and the lower end of the threaded rod (12) which is driven by the first driving motor (16); the moving blocks (13) are respectively arranged at the upper end and the lower end of each group of threaded rods (12) and are in threaded connection with the corresponding ends; the rotating rod (14) is positioned between the mounting groove (15) and the water storage tank (4) on the same side, one end of the rotating rod is rotatably connected with the water storage tank (4), and the other end of the rotating rod is rotatably connected with the moving block (13);
the stirring adjusting assembly (3) comprises a mounting plate (18), a sliding piece (19) and a second driving motor (20); the mounting plate (18) is arranged below the cell stack; the lower ends of the two stirring shafts (5) driven by the second driving motor (20) extend out of the water storage tank (4) through sealed bearings and are rotatably connected with the two ends of the mounting plate (18); the sliding part (19) is arranged at the upper end of the mounting plate (18) and is connected with the bottom end of the cell stack in a sliding mode.
2. An arrangement and a method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the heating assembly (1) further comprises a slide rail (11); the slide rail (11) is arranged on the cell stack; the water storage tank (4) is connected with the slide rail (11) in a sliding way.
3. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the stirring member (6) comprises a connecting rod (7), a rotating sleeve (8) and a paddle (9); one end of the connecting rod (7) is connected with the side wall of the stirring shaft (5); the rotating sleeve (8) is rotatably connected to one end of the connecting rod (7) far away from the stirring shaft (5); the paddle (9) is arranged on the rotating sleeve (8).
4. An arrangement and a method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 3, characterized in that the connecting rod (7) is arranged obliquely.
5. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the position adjustment assembly (2) further comprises a connection plate (17); the connecting plate (17) is arranged between the two sets of mounting grooves (15); the first driving motor (16) is arranged on the connecting plate (17) and is connected with the threaded rods (12) on the two sides through a belt in a transmission way.
6. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the moving block (13) is slidably connected to the groove wall of the installation groove (15) in the vertical direction.
7. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the second drive motor (20) is arranged on the mounting plate (18) and is connected to the stirring shafts (5) on both sides by a belt drive.
8. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1, characterized in that the slide (19) comprises a telescopic rod (21), a mounting (22) and a ball (23); the telescopic rod (21) is arranged on the mounting plate (18); the mounting seat (22) is arranged at the upper end of the telescopic rod (21); the ball (23) is rotatably arranged on the mounting seat (22).
9. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with claim 1 wherein the slider (19) further comprises a resilient member (24); the elastic piece (24) is sleeved outside the telescopic rod (21), the upper end of the elastic piece is connected with the mounting seat (22), and the lower end of the elastic piece is connected with the mounting plate (18).
10. An apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing in accordance with any one of claims 1 to 9, characterized by the following method steps:
s1, mounting the equipment on a cell stack, adding cooling water into the water storage tank (4), and communicating the water storage tank (4) with a water inlet pipe and a water outlet pipe on the cell stack;
s2, before cold start of the battery stack, starting the equipment; the heating plate (10) is electrified to heat the cooling water, the stirring piece (6) is driven by the stirring shaft (5) to rotate and rotate at the same time to accelerate the mixing of cold water and hot water, the heated cooling water enters the cell stack to heat the cell stack from the inside, and finally returns to the water storage tank (4); the threaded rod (12) rotates to drive the moving block (13) to move up and down, the rotating rod (14) is pushed to rotate, the water storage tank (4) moves back and forth, and the cell stack is heated from the outside;
and S3, when the temperature monitoring equipment detects that the temperature of the cell stack reaches 60-80 ℃, the equipment stops working, and the cell stack starts to start.
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| CN202010839032.6A CN112038669A (en) | 2020-08-19 | 2020-08-19 | Apparatus and method for preventing water in a hydrogen fuel cell power plant from freezing |
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| EP2790257A1 (en) * | 2011-12-05 | 2014-10-15 | Konica Minolta, Inc. | Fuel cell system |
| JP2018010749A (en) * | 2016-07-12 | 2018-01-18 | 東京瓦斯株式会社 | Fuel cell system |
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Application publication date: 20201204 |