CN114665123B - Fuel cell stack and control system thereof - Google Patents
Fuel cell stack and control system thereof Download PDFInfo
- Publication number
- CN114665123B CN114665123B CN202210294424.8A CN202210294424A CN114665123B CN 114665123 B CN114665123 B CN 114665123B CN 202210294424 A CN202210294424 A CN 202210294424A CN 114665123 B CN114665123 B CN 114665123B
- Authority
- CN
- China
- Prior art keywords
- anode
- cathode
- cooling
- water inlet
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04358—Temperature; Ambient temperature of the coolant
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The application discloses a fuel cell stack and a control system of the fuel cell stack, comprising a membrane electrode plate assembly and a bipolar plate assembly, wherein the bipolar plate assembly comprises an anode plate and a cathode plate which are oppositely arranged, and a cooling channel is arranged between the anode plate and the cathode plate; the number of the bipolar plate assemblies and the number of the membrane electrode plate assemblies are all provided with a plurality of groups, the bipolar plate assemblies and the membrane electrode plate assemblies are mutually overlapped, and the positions of the outlets and the inlets of the cooling channels of the two adjacent bipolar plate assemblies are opposite. When cooling is performed through cooling liquid, the cooling liquid flow directions of the cooling channels of the two adjacent bipolar plate assemblies are opposite, so that the heat absorption degree of the inlet end and the outlet end of each cooling channel is approximately equal, the internal temperature of the electric pile is more balanced, and the performance and the stability of the electric pile are better.
Description
Technical Field
The present application relates to the field of fuel cells, and in particular, to a fuel cell stack and a control system for the fuel cell stack.
Background
The fuel cell is a device for directly converting chemical energy of hydrogen into electric energy, and has the advantages of high efficiency, low noise and zero pollution. Fuel cells typically require multiple fuel cell stacks to be assembled in series, with the primary components being the fuel cell stacks, membrane Electrodes (MEA), end plates, fasteners, and the like. The fuel cell stack generates a large amount of heat in the reaction process, so that one side of the fuel cell stack is provided with a cooling flow passage for passing deionized cooling water so as to prevent the fuel cell stack from overheating and affecting the performance of the fuel cell stack.
During use of the fuel cell stack, the fuel cell stack efficiency is approximately 50% to 60%. This means that 40% to 50% of the chemical energy is converted into thermal energy. The internal operating temperature of the stack greatly affects the performance and stability of the fuel cell stack when operating. The design of the prior fuel cell stack generally has only one cooling water inlet and outlet, and forms a three-inlet and three-outlet design with a hydrogen gas inlet, a hydrogen gas outlet, an oxygen gas inlet and an oxygen gas outlet. The design can lead the cooling water to absorb a large amount of heat at the front section of the flow channel, and the tail end of the flow channel can not absorb the same heat, so that the internal temperature of the electric pile is unbalanced, and the performance and the stability of the electric pile are affected.
Disclosure of Invention
The present application is directed to a fuel cell stack and a control system for a fuel cell stack that solve one or more of the technical problems of the prior art, and at least provide a beneficial choice or creation of conditions.
The technical scheme adopted for solving the technical problems is as follows:
the application provides a fuel cell stack, which comprises a membrane electrode plate assembly and a bipolar plate assembly, wherein the bipolar plate assembly comprises an anode plate and a cathode plate which are oppositely arranged, and a cooling channel is arranged between the anode plate and the cathode plate; the number of the bipolar plate assemblies and the number of the membrane electrode plate assemblies are all provided with a plurality of groups, the bipolar plate assemblies and the membrane electrode plate assemblies are mutually overlapped, and the positions of the outlets and the inlets of the cooling channels of the two adjacent bipolar plate assemblies are opposite.
The beneficial effects of the application are as follows:
when cooling is performed through cooling liquid, the cooling liquid flow directions of the cooling channels of the two adjacent bipolar plate assemblies are opposite, so that the heat absorption degree of the inlet end and the outlet end of each cooling channel is approximately equal, the internal temperature of the electric pile is more balanced, and the performance and the stability of the electric pile are better.
As a further improvement of the technical scheme, the anode plate is provided with an anode cooling area towards the opposite surface of the cathode plate, the anode cooling area is provided with an anode cooling flow channel, the opposite surface of the cathode plate towards the anode plate is provided with a cathode cooling area, and the cathode cooling area is provided with a cathode cooling flow channel. The anode cooling flow channel and the cathode cooling flow channel form a cooling channel, the flow of the cooling channel is larger, and the cooling effect is better.
As a further improvement of the technical scheme, the anode cooling flow channel and the cathode cooling flow channel are both direct current channels, the anode cooling flow channel and the cathode plate form a cooling channel, and the cathode cooling flow channel and the anode plate form a cooling channel, so that the cooling area is larger.
As a further improvement of the technical scheme, the anode plate is provided with a first cathode drain outlet, a first cathode water inlet, a first anode drain outlet and a first anode water inlet, and the cathode plate is provided with a second cathode drain outlet, a second cathode water inlet, a second anode drain outlet and a second anode water inlet; the first anode water outlet and the first anode water inlet are communicated with the anode cooling flow channel, and the second cathode water outlet and the second cathode water inlet are communicated with the cathode cooling flow channel; the first cathode water outlet and the second cathode water outlet are correspondingly arranged, the first cathode water inlet and the second cathode water inlet are correspondingly arranged, the first anode water outlet and the second anode water outlet are correspondingly arranged, and the first anode water inlet and the second anode water inlet are correspondingly arranged.
Taking the corresponding arrangement of the first cathode drain outlet and the second cathode drain outlet as an example, a plurality of polar plates are stacked to form a pile drain channel, so that a plurality of groups of cooling channels communicated with the pile drain channel can be conveniently and simultaneously controlled, and two pile water inlet channels and pile drain channels can be formed, so that the flow of cooling liquid flowing reversely can be respectively controlled by controlling the flow of the pile water inlet channels and the pile drain channels.
As a further improvement of the technical scheme, the first cathode water outlet and the first cathode water inlet are diagonally arranged on the anode plate, the first anode water outlet and the first anode water inlet are diagonally arranged on the anode plate, the second cathode water outlet and the second cathode water inlet are diagonally arranged on the cathode plate, and the second anode water outlet and the second anode water inlet are diagonally arranged on the cathode plate. The cooling liquid flows reversely and alternately, so that the cooling is more uniform.
As a further improvement of the technical scheme, the anode plate is provided with two anode diversion areas, wherein one anode diversion area is communicated with the first anode water outlet and the anode cooling flow passage, and the other anode diversion area is communicated with the first anode water inlet and the anode cooling flow passage;
the cathode plate is provided with two cathode diversion areas, wherein one cathode diversion area is communicated with the cathode cooling flow passage and the first cathode water outlet, and the other cathode diversion area is communicated with the first cathode water inlet and the cathode cooling flow passage. The cooling liquid evenly enters or flows out of each cooling channel, so that the cooling is more uniform and the cooling effect is better.
As a further improvement of the technical scheme, the anode flow guiding area is provided with an anode flow guiding piece, the cathode flow guiding area is provided with a cathode flow guiding piece, the anode flow guiding piece divides the anode flow guiding area into a plurality of flow guiding channels, and the cathode flow guiding piece divides the cathode flow guiding area into a plurality of flow guiding channels, so that the flow guiding effect is better.
As a further improvement of the above technical solution, the anode flow guiding member includes a plurality of anode flow guiding protrusions alternately arranged on the anode plate, and the plurality of anode flow guiding protrusions are all arranged on the outlet side or the inlet side of the anode cooling flow channel;
the cathode flow guiding piece comprises a plurality of cathode flow guiding convex blocks which are arranged on the cathode plate at intervals in a staggered way, and the plurality of cathode flow guiding convex blocks are arranged on the outlet side or the inlet side of the cathode cooling flow channel. The manufacturing process of the anode flow guide lug and the cathode flow guide lug is simpler, and the flow guide effect can be achieved.
As a further improvement of the technical scheme, the fuel cell electric pile is provided with a first electric pile water inlet, a first electric pile water outlet, a first electric pile water inlet and a second electric pile water outlet, the multiple groups of bipolar plate assemblies are divided into a first polar plate assembly and a second polar plate assembly which are arranged in a staggered mode, the first electric pile water inlet and the first electric pile water outlet are communicated with a cooling channel of the first polar plate assembly, and the second electric pile water inlet and the second electric pile water outlet are communicated with the second polar plate assembly. The flow of the first electric pile water inlet and the flow of the first electric pile water inlet are controlled so as to respectively control the flow of the cooling liquid flowing reversely, and therefore the adjustment of the internal temperature of the electric pile is realized.
The application also provides a control system of the fuel cell stack, which comprises the fuel cell stack and a PLC (programmable logic controller), wherein the fuel cell stack is provided with a temperature sensor, the PLC is electrically connected with the temperature sensor, a water inlet of the first cell stack is connected with a first flow regulating piece, a water inlet of the second cell stack is connected with a second flow regulating piece, and the PLC is electrically connected with the first flow regulating piece and the second flow regulating piece. During actual operation, the temperature inside the electric pile is monitored through the temperature sensor, fed back to the PLC controller, read and feed back to the first flow regulating part and the second flow regulating part through the PLC controller, and the flow of water inlet is regulated, so that the automatic regulation and control of the temperature inside the electric pile is realized.
Drawings
The application is further described below with reference to the drawings and examples;
FIG. 1 is a schematic view of an anode plate structure of a fuel cell stack according to an embodiment of the present application;
FIG. 2 is a schematic view of a cathode plate structure of a fuel cell stack according to an embodiment of the present application;
FIG. 3 is a schematic view of a cathode plate structure of a fuel cell stack according to an embodiment of the present application;
FIG. 4 is a diagram of a stack cooling control system according to one embodiment of the present application;
reference numerals:
anode plate 100, anode cooling flow channel 110, anode hydrogen gas inlet 101, first cathode drain 102, first anode water inlet 103, anode oxygen gas inlet 104, anode hydrogen gas outlet 105, first cathode water inlet 106, first anode drain 107, anode oxygen gas outlet 108, anode flow guiding region 120, and anode flow guiding bump 130;
cathode plate 200, cathode cooling flow channel 210, cathode hydrogen gas inlet 201, second cathode drain outlet 202, second anode water inlet 203, cathode oxygen gas inlet 204, cathode hydrogen gas outlet 205, second cathode water inlet 206, second anode drain outlet 207, cathode oxygen gas outlet 208, cathode flow guiding region 220, cathode flow guiding bump 230, gas flow guiding channel 240, cathode ventilation channel opening 241, anode ventilation channel opening 242;
a first stack water inlet 410, a first stack water outlet 420, a second stack water inlet 430, a second stack water outlet 440, a temperature sensor 450, a PLC controller 460, a first flow regulator 411, a second flow regulator 431.
Detailed Description
Reference will now be made in detail to the present embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present application, but not to limit the scope of the present application.
In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, if there is a word description such as "a plurality" or the like, the meaning of a plurality is one or more, and the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 4, a fuel cell stack and a control system of the fuel cell stack according to the present application make the following embodiments:
in some embodiments, a fuel cell stack includes a membrane electrode plate assembly, a bipolar plate assembly including oppositely disposed anode plates 100 and cathode plates 200 with cooling channels disposed between the anode plates 100 and the cathode plates 200; the membrane electrode plate assembly is disposed between the anode plate 100 and the cathode plate 200; the number of the bipolar plate assemblies and the number of the membrane electrode plate assemblies are all provided with a plurality of groups, the bipolar plate assemblies and the membrane electrode plate assemblies are mutually overlapped, and the positions of the outlets and the inlets of the cooling channels of the two adjacent bipolar plate assemblies are opposite. When cooling is performed through cooling liquid, the cooling liquid flow directions of the cooling channels of the two adjacent bipolar plate assemblies are opposite, so that the heat absorption degree of the inlet end and the outlet end of each cooling channel is approximately equal, the internal temperature of the electric pile is more balanced, and the performance and the stability of the electric pile are better.
The cooling channels are arranged in various ways, for example, a runner can be arranged on one of the anode plate 100 and the cathode plate 200, and the other plate is not provided with a runner, so that the thickness of the bipolar plate is reduced, and the structure is simpler. However, the two plates have large specification difference, one plate has large thickness, and the subsequent arrangement of water inlets such as the first cathode water inlet 106, water outlets such as the first cathode water outlet 102 and the like and the inconvenient installation of the plates are inconvenient. The cooling channels may be provided as straight channels, serpentine channels, wave-like channels, etc.
The cooling channel arrangement manner may also refer to fig. 1 to 3, taking one set of bipolar plate assembly as an example, the opposite surface of the anode plate 100 facing the cathode plate 200 is provided with an anode cooling area, the anode cooling area is provided with a plurality of anode cooling channels 110, the anode cooling channels 110 are grooves concavely arranged on the anode plate 100, the opposite surface of the cathode plate 200 facing the anode plate 100 is provided with a cathode cooling area, the cathode cooling area is provided with a plurality of cathode cooling channels 210, the cathode cooling channels 210 are concavely arranged in the grooves on the cathode plate 200, the anode cooling channels 110 and the cathode cooling channels 210 are correspondingly arranged as cooling channels, the flow rate of the cooling channels is larger, and the situation that the rear section of the cooling channels cannot absorb heat after the cooling liquid absorbs a large amount of heat through the front section of the cooling channels due to less cooling liquid is avoided.
And when the anode cooling flow channel 110 and the cathode cooling flow channel 210 are both direct current channels, the anode cooling flow channel 110 and the cathode plate 200 form a cooling channel, and the cathode cooling flow channel 210 and the anode plate 100 form a cooling channel, that is, when in operation, the groove wall of the anode cooling region, where the anode cooling region is provided with the anode cooling flow channel 110, is correspondingly provided with a notch of the cathode cooling region, that is, the anode cooling region is provided with the cooling channel, the cooling area is larger, and similarly, the cathode cooling region is provided with the cooling channel, and the cooling area is larger.
In this case, water inlets such as the first cathode water inlet 106 and water outlets such as the first cathode water outlet 102 may be provided. The anode plate 100 is provided with a first cathode drain 102, a first cathode water inlet 106, a first anode drain 107 and a first anode water inlet 103, and the cathode plate 200 is provided with a second cathode drain 202, a second cathode water inlet 206, a second anode drain 207 and a second anode water inlet 203; the first anode drain outlet 107 and the first anode water inlet 103 are communicated with the anode cooling flow channel 110, and the second cathode drain outlet 202 and the second cathode water inlet 206 are communicated with the cathode cooling flow channel 210; the first cathode drain 102 corresponds to the second cathode drain 202, the first cathode inlet 106 corresponds to the second cathode inlet 206, the first anode drain 107 corresponds to the second anode drain 207, and the first anode inlet 103 corresponds to the second anode inlet 203.
Taking the first cathode drain outlet 102 and the second cathode drain outlet 202 as examples, the bipolar plate assemblies are stacked to form a pile drain channel, the pile drain channel is communicated with a plurality of cooling communication channels, and the flow of the pile drain channel is controlled, so that the flow in the cooling communication channels communicated with the pile drain channel can be controlled, and the control is more convenient. Similarly, two pile water inlet channels and two pile water outlet channels are formed, and the flow of the oppositely flowing cooling liquid can be controlled by controlling the flow of the pile water inlet channels and the pile water outlet channels respectively.
Further, the first cathode drain 102 and the first cathode water inlet 106 are diagonally disposed on the anode plate 100, the first anode drain 107 and the first anode water inlet 103 are diagonally disposed on the anode plate 100, the second cathode drain 202 and the second cathode water inlet 206 are diagonally disposed on the cathode plate 200, and the second anode drain 207 and the second anode water inlet 203 are diagonally disposed on the cathode plate 200. The cooling liquid flows reversely and alternately, so that the cooling is more uniform.
Also, since the anode cooling flow channel 110 and the cathode cooling flow channel 210 are each provided with a plurality of flow guiding structures for allowing the cooling liquid to uniformly enter.
The anode plate 100 is provided with two anode diversion areas 120, wherein one anode diversion area 120 is communicated with the first anode drainage outlet 107 and the anode cooling flow channel 110, and the other anode diversion area 120 is communicated with the first anode water inlet 103 and the anode cooling flow channel 110; the cathode plate 200 is provided with two cathode flow guiding areas 220, wherein one cathode flow guiding area 220 is communicated with the cathode cooling flow channel 210 and the first cathode water outlet 102, and the other cathode flow guiding area 220 is communicated with the first cathode water inlet 106 and the cathode cooling flow channel 210. The cooling liquid evenly enters or flows out of each cooling channel, so that the cooling is more uniform and the cooling effect is better. In this embodiment, the anode guiding region 120 may be a groove concavely formed on the anode plate 100, and the cathode guiding region 220 is a groove concavely formed on the cathode plate 200.
Further, the anode flow guiding area 120 is provided with an anode flow guiding member, the cathode flow guiding area 220 is provided with a cathode flow guiding member, the anode flow guiding member divides the anode flow guiding area 120 into a plurality of flow guiding channels, and the cathode flow guiding member divides the cathode flow guiding area 220 into a plurality of flow guiding channels, so that the flow guiding effect is better.
The cathode guide member may be a guide plate structure, or may be a plurality of cathode guide protrusions 230 disposed at intervals on the cathode plate 200, and the plurality of cathode guide protrusions 230 are disposed on the outlet side or the inlet side of the cathode cooling flow channel 210, so that the manufacturing process is simpler and the guide effect can be achieved. Similarly, the anode guide member may be a plurality of anode guide protrusions 130 disposed at the anode plate 100 at staggered intervals. The anode flow guiding bump 130 and the cathode flow guiding bump 230 are simpler in manufacturing process and can also play a role in flow guiding.
In addition, the anode plate 100 is provided with an anode hydrogen gas inlet 101, an anode hydrogen gas outlet 105, an anode oxygen gas inlet 104 and an anode oxygen gas outlet 108, the anode hydrogen gas inlet 101 and the anode hydrogen gas outlet 105 are diagonally arranged on the anode plate 100, and the anode oxygen gas inlet 104 and the anode oxygen gas outlet 108 are diagonally arranged on the anode plate 100; cathode plate 200 is provided with a cathode hydrogen gas inlet 201, a cathode hydrogen gas outlet 205, a cathode oxygen gas inlet 204, and a cathode oxygen gas outlet 208; the anode hydrogen gas inlet 101 and the cathode hydrogen gas inlet 201 are correspondingly arranged, the anode hydrogen gas outlet 105 and the cathode hydrogen gas outlet 205 are correspondingly arranged, the anode oxygen gas inlet 104 and the cathode oxygen gas inlet 204 are correspondingly arranged, and the anode oxygen gas outlet 108 and the cathode oxygen gas outlet 208 are correspondingly arranged.
Each of the gas inlets and the gas outlets are correspondingly arranged to form a plurality of gas channels, and taking the anode hydrogen gas inlet 101 and the cathode hydrogen gas inlet 201 as examples, a hydrogen gas inlet channel is formed and is simultaneously communicated with the gas channels formed by a plurality of electric thrusters.
Further, the anode hydrogen gas inlet 101, the anode hydrogen gas outlet 105, the anode oxygen gas inlet 104, the anode oxygen gas outlet 108, the cathode hydrogen gas inlet 201, the cathode hydrogen gas outlet 205, the cathode oxygen gas inlet 204 and the cathode oxygen gas outlet 208 are all provided with gas guide channels 240; the anode hydrogen gas inlet 101 and the gas guide channel 240 of the anode hydrogen gas outlet 105 are communicated with an anode ventilation channel port 242, and the anode ventilation channel port 242 is arranged on the anode plate 100; the cathode oxygen inlet 204 and the gas guide channel 240 of the cathode oxygen outlet 208 are respectively communicated with a cathode ventilation channel opening 241, and the cathode ventilation channel opening 241 is arranged on the cathode plate 200.
Hydrogen enters the anode ventilation channel opening 242 from the anode hydrogen gas inlet 101, flows through the hydrogen flow channel on the back surface, flows from the anode ventilation channel opening 242 to the anode hydrogen gas outlet 105 and is discharged.
Further, the fuel cell stack is provided with a first stack water inlet 410, a first stack water outlet 420, a second stack water inlet 430 and a second stack water outlet 440, the multiple bipolar plate assemblies are divided into a first polar plate assembly and a second polar plate assembly which are arranged in a staggered manner, the first stack water inlet 410 and the first stack water outlet 420 are communicated with a cooling channel of the first polar plate assembly, and the second stack water inlet 430 and the second stack water outlet 440 are communicated with the second polar plate assembly. The temperature inside the electric pile is adjusted by controlling the flow of the first electric pile water inlet 410 and the flow of the first electric pile water inlet 410 so as to respectively control the flow of the cooling liquid flowing reversely.
It should be noted that, in this embodiment, only the structure of the first polar plate assembly is described in detail, and the structure of the second polar plate assembly should be changed correspondingly according to the circulation situation of the cold liquid.
Referring to fig. 4, the present application further provides a control system of a fuel cell stack, where the control system of the fuel cell stack includes the fuel cell stack and a PLC controller 460, the fuel cell stack is provided with a temperature sensor 450, and the PLC controller 460 is electrically connected with the temperature sensor 450. The PLC controller 460 monitors the fuel cell stack temperature in real time.
In actual operation, the temperature sensor 450 is used for monitoring the internal temperature of the electric pile, the controller PLC is used for reading and feeding back the internal temperature of the electric pile to the first flow regulating part 411 and the second flow regulating part 431, and the flow of cooling liquid is regulated, so that the internal temperature of the electric pile is automatically regulated and controlled.
Among them, the first and second flow rate adjusters 411 and 431 may employ a water pump, an electromagnetic valve, and the like.
While the preferred embodiments of the present application have been illustrated and described, the present application is not limited to the examples, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (7)
1. A fuel cell stack, comprising;
a bipolar plate assembly comprising oppositely disposed anode plates (100) and cathode plates (200), cooling channels being provided between the anode plates (100) and the cathode plates (200);
a membrane electrode plate assembly;
the bipolar plate assemblies and the membrane electrode plate assemblies are arranged in a plurality of groups, the bipolar plate assemblies and the membrane electrode plate assemblies are mutually overlapped, and the positions of the outlets and the inlets of the cooling channels of the two adjacent bipolar plate assemblies are opposite;
an anode cooling area is arranged on the opposite surface of the anode plate (100) facing the cathode plate (200), an anode cooling flow channel (110) is arranged in the anode cooling area, a cathode cooling area is arranged on the opposite surface of the cathode plate (200) facing the anode plate (100), and a cathode cooling flow channel (210) is arranged in the cathode cooling area;
the anode plate (100) is provided with a first cathode drain outlet (102), a first cathode water inlet (106), a first anode drain outlet (107) and a first anode water inlet (103), and the cathode plate (200) is provided with a second cathode drain outlet (202), a second cathode water inlet (206), a second anode drain outlet (207) and a second anode water inlet (203);
the first anode drain outlet (107) and the first anode water inlet (103) are communicated with the anode cooling flow channel (110), and the second cathode drain outlet (202) and the second cathode water inlet (206) are communicated with the cathode cooling flow channel (210);
the first cathode water outlet (102) is arranged corresponding to the second cathode water outlet (202), the first cathode water inlet (106) is arranged corresponding to the second cathode water inlet (206), the first anode water outlet (107) is arranged corresponding to the second anode water outlet (207), and the first anode water inlet (103) is arranged corresponding to the second anode water inlet (203);
the first cathode drain outlet (102) and the first cathode water inlet (106) are diagonally arranged on the anode plate (100), and the first anode drain outlet (107) and the first anode water inlet (103) are diagonally arranged on the anode plate (100);
the second cathode water outlet (202) and the second cathode water inlet (206) are diagonally arranged on the cathode plate (200), and the second anode water outlet (207) and the second anode water inlet (203) are diagonally arranged on the cathode plate (200).
2. A fuel cell stack according to claim 1, characterized in that:
the anode cooling flow channel (110) and the cathode cooling flow channel (210) are direct current channels, the anode cooling flow channel (110) and the cathode plate (200) form the cooling channel, and the cathode cooling flow channel (210) and the anode plate (100) form the cooling channel.
3. A fuel cell stack according to claim 1, characterized in that:
the anode plate (100) is provided with two anode diversion areas (120), wherein one anode diversion area (120) is communicated with the first anode water outlet (107) and the anode cooling flow channel (110), and the other anode diversion area (120) is communicated with the first anode water inlet (103) and the anode cooling flow channel (110);
the cathode plate (200) is provided with two cathode diversion areas (220), wherein one cathode diversion area (220) is communicated with the cathode cooling flow channel (210) and the first cathode water outlet (102), and the other cathode diversion area (220) is communicated with the first cathode water inlet (106) and the cathode cooling flow channel (210).
4. A fuel cell stack according to claim 3, characterized in that:
the anode flow guiding area (120) is provided with an anode flow guiding piece, and the cathode flow guiding area (220) is provided with a cathode flow guiding piece.
5. A fuel cell stack as set forth in claim 4, wherein:
the anode flow guide piece comprises a plurality of anode flow guide convex blocks (130) which are arranged on the anode plate (100) at intervals, and the anode flow guide convex blocks (130) are arranged on the outlet side or the inlet side of the anode cooling flow channel (110);
the cathode guide member comprises a plurality of cathode guide convex blocks (230) which are arranged on the cathode plate (200) at staggered intervals, and the plurality of cathode guide convex blocks (230) are arranged on the outlet side or the inlet side of the cathode cooling flow channel (210).
6. A fuel cell stack as set forth in claim 5, wherein:
the fuel cell stack is provided with a first stack water inlet (410), a first stack water outlet (420), a second stack water inlet (430) and a second stack water outlet (440), the bipolar plate assemblies are divided into a first polar plate assembly and a second polar plate assembly which are arranged in a staggered mode, the first stack water inlet (410), the first stack water outlet (420) are communicated with a cooling channel of the first polar plate assembly, and the second stack water inlet (430) and the second stack water outlet (440) are communicated with the second polar plate assembly.
7. A control system of a fuel cell stack, characterized in that the control system of a fuel cell stack comprises the fuel cell stack of claim 6 and a PLC controller (460), the fuel cell stack is provided with a temperature sensor (450), the PLC controller (460) is electrically connected with the temperature sensor (450), a first stack water inlet (410) is connected with a first flow regulator (411), a second stack water inlet (430) is connected with a second flow regulator (431), and the PLC controller (460) is electrically connected with the first flow regulator (411) and the second flow regulator (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294424.8A CN114665123B (en) | 2022-03-23 | 2022-03-23 | Fuel cell stack and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294424.8A CN114665123B (en) | 2022-03-23 | 2022-03-23 | Fuel cell stack and control system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114665123A CN114665123A (en) | 2022-06-24 |
| CN114665123B true CN114665123B (en) | 2023-10-03 |
Family
ID=82030784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210294424.8A Active CN114665123B (en) | 2022-03-23 | 2022-03-23 | Fuel cell stack and control system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114665123B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013157315A (en) * | 2012-01-06 | 2013-08-15 | Nippon Soken Inc | Fuel battery |
| CN107394235A (en) * | 2017-07-13 | 2017-11-24 | 上海重塑能源科技有限公司 | Fuel cell accessory system |
| CN109216734A (en) * | 2018-09-30 | 2019-01-15 | 河南豫氢动力有限公司 | A kind of auxiliary system facilitating fuel cell humidifying and cold-starting |
| CN209804812U (en) * | 2019-05-22 | 2019-12-17 | 深圳市氢蓝时代动力科技有限公司 | pile pipeline arrangement system |
| CN209845423U (en) * | 2019-04-23 | 2019-12-24 | 武汉天和技术股份有限公司 | Plasma generator adopting series cooling mode |
| CN111180754A (en) * | 2020-01-20 | 2020-05-19 | 同济大学 | High-power metal plate fuel cell stack |
| CN211320218U (en) * | 2020-01-07 | 2020-08-21 | 风氢扬科技(杭州)有限公司 | Fuel cell cooling system |
| CN212967771U (en) * | 2020-10-30 | 2021-04-13 | 珠海格力电器股份有限公司 | Stack module of fuel cell and fuel cell |
| CN112713283A (en) * | 2019-10-24 | 2021-04-27 | 未势能源科技有限公司 | Fuel cell bipolar plate, electric pile and fuel cell automobile |
| WO2021104826A1 (en) * | 2019-11-28 | 2021-06-03 | Robert Bosch Gmbh | Bipolar plate |
| CN113178593A (en) * | 2021-04-12 | 2021-07-27 | 武汉氢能与燃料电池产业技术研究院有限公司 | Electric pile structure of proton exchange film fuel cell |
| CN113270614A (en) * | 2021-05-18 | 2021-08-17 | 山东交通学院 | Air supply system of vehicle proton exchange membrane fuel cell and working method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016107906A1 (en) * | 2016-04-28 | 2017-11-02 | Volkswagen Aktiengesellschaft | Bipolar plate comprising reactant gas channels with variable cross-sectional areas, fuel cell stack and vehicle with such a fuel cell stack |
| DE102018200673B4 (en) * | 2018-01-17 | 2021-05-12 | Audi Ag | Bipolar plate, fuel cell and a motor vehicle |
-
2022
- 2022-03-23 CN CN202210294424.8A patent/CN114665123B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013157315A (en) * | 2012-01-06 | 2013-08-15 | Nippon Soken Inc | Fuel battery |
| CN107394235A (en) * | 2017-07-13 | 2017-11-24 | 上海重塑能源科技有限公司 | Fuel cell accessory system |
| CN109216734A (en) * | 2018-09-30 | 2019-01-15 | 河南豫氢动力有限公司 | A kind of auxiliary system facilitating fuel cell humidifying and cold-starting |
| CN209845423U (en) * | 2019-04-23 | 2019-12-24 | 武汉天和技术股份有限公司 | Plasma generator adopting series cooling mode |
| CN209804812U (en) * | 2019-05-22 | 2019-12-17 | 深圳市氢蓝时代动力科技有限公司 | pile pipeline arrangement system |
| CN112713283A (en) * | 2019-10-24 | 2021-04-27 | 未势能源科技有限公司 | Fuel cell bipolar plate, electric pile and fuel cell automobile |
| WO2021104826A1 (en) * | 2019-11-28 | 2021-06-03 | Robert Bosch Gmbh | Bipolar plate |
| CN211320218U (en) * | 2020-01-07 | 2020-08-21 | 风氢扬科技(杭州)有限公司 | Fuel cell cooling system |
| CN111180754A (en) * | 2020-01-20 | 2020-05-19 | 同济大学 | High-power metal plate fuel cell stack |
| CN212967771U (en) * | 2020-10-30 | 2021-04-13 | 珠海格力电器股份有限公司 | Stack module of fuel cell and fuel cell |
| CN113178593A (en) * | 2021-04-12 | 2021-07-27 | 武汉氢能与燃料电池产业技术研究院有限公司 | Electric pile structure of proton exchange film fuel cell |
| CN113270614A (en) * | 2021-05-18 | 2021-08-17 | 山东交通学院 | Air supply system of vehicle proton exchange membrane fuel cell and working method |
Non-Patent Citations (2)
| Title |
|---|
| 秦敬玉等.一个2.5kW H<,2>-Air质子交换膜燃料电池堆的综合实验池.《第四届全国氢能学术会议》.2004,第18-23页. * |
| 阴极结构和运行方式在微生物燃料电池-人工湿地系统中的作用;唐成;《中国博士学位论文全文数据库 工程科技I辑》(第6期);第B015-45页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114665123A (en) | 2022-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080026274A1 (en) | Flow Shifting Coolant During Freeze Start-Up To Promote Stack Durability And Fast Start-Up | |
| KR100798451B1 (en) | Fuel cell separator and fuel cell stack and reactant gas control method thereof | |
| JP5386676B2 (en) | High performance proton exchange membrane (PEM) fuel cell | |
| WO2004004034A2 (en) | Fuel cell cooling system | |
| US20040001984A1 (en) | Fuel cell cooling system for low coolant flow rate | |
| CN108649247B (en) | Operation system of proton exchange membrane fuel cell capable of low-temperature cold start | |
| US6964824B2 (en) | Fuel cell and method of operating the same | |
| CN116344861A (en) | Proton exchange membrane hydrogen fuel cell cogeneration system | |
| US6589678B1 (en) | Fuel cell method of operation | |
| CN109638311B (en) | Fuel cell guide plate | |
| CN114665123B (en) | Fuel cell stack and control system thereof | |
| US10347927B2 (en) | Assembly for thermal management of a fuel cell | |
| EP1947726A1 (en) | Fuel cell manifold | |
| KR101848614B1 (en) | Thermal Management System for vehicles | |
| CN103119767A (en) | Polymer electrolyte fuel cell and fuel cell system provided with same | |
| CN113497247A (en) | High-response-level hydrogen fuel cell system | |
| CN111052469B (en) | Bipolar plate for improving efficiency of proton exchange membrane fuel cell | |
| KR102604253B1 (en) | Fuel cell stack with bipolar plate, and fuel cell system | |
| CN110789402B (en) | Heater for hydrogen energy automobile and hydrogen energy automobile thermal management system using same | |
| CN215644591U (en) | Electric pile temperature control device of fuel cell | |
| CN117317295B (en) | Cooling liquid insulation method, insulation device and fuel cell power generation system | |
| CN110949185B (en) | Heater for hydrogen energy automobile and hydrogen energy automobile thermal management system using same | |
| US7063907B2 (en) | Passive water management system for a fuel cell power plant | |
| US20230378486A1 (en) | Bipolar plate with media regulation and fuel cell stack | |
| CN220155576U (en) | Integrated electric pile end plate structure of fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |