CN206878106U - A kind of fuel cell flow field board - Google Patents
A kind of fuel cell flow field board Download PDFInfo
- Publication number
- CN206878106U CN206878106U CN201720814757.3U CN201720814757U CN206878106U CN 206878106 U CN206878106 U CN 206878106U CN 201720814757 U CN201720814757 U CN 201720814757U CN 206878106 U CN206878106 U CN 206878106U
- Authority
- CN
- China
- Prior art keywords
- flow
- fuel cell
- flow field
- water inlet
- water outlet
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a kind of fuel cell flow field board, including plate body；Inlet opening, on the plate body；Apopore, on the plate body；Flow field area, located at the one side of the plate body；Wherein, the flow field area is provided with a plurality of runner, the mutual parallel and end to end formation serpentine flow path of a plurality of runner, and the inlet opening is communicated in the water inlet end of the serpentine flow path, and the apopore is communicated in the water side of the serpentine flow path.
Description
Technical Field
The utility model relates to a field such as fuel cell liquid cooling specifically is a fuel cell flow field board.
Background
Typically, the fuel cells are arranged in a fuel cell stack. In a fuel cell stack, there are regional features that distribute various fluids (reactants, cooling fluids) across the fuel cell stack. These zone features are referred to as manifolds and flow field regions. Flow channels are included in the flow field region for the distribution of various fluids over the active area in the fuel cell for the passage of various fluids.
The distribution structure of the flow channels of the existing flow field area is unreasonable, one flow channel is too short, the effect of cooling fluid is not obvious, and the fluid pressure of the two flow channels is not uniformly distributed, so that the pressure and the flow speed are not uniform during fluid conveying.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: a fuel cell flow field plate is provided that addresses at least one technical deficiency in the prior art.
The technical scheme for realizing the purpose is as follows: a fuel cell flow field plate comprising a plate body; the water inlet is formed in the plate body; the water outlet is formed in the plate body; the flow field area is arranged on one surface of the plate body; the flow field area is provided with a plurality of runners, the runners are parallel to each other and form a snake-shaped runner in an end-to-end mode, the water inlet hole is communicated with the water inlet end of the snake-shaped runner, and the water outlet hole is communicated with the water outlet end of the snake-shaped runner.
In a preferred embodiment of the present invention, the flow passage includes a water inlet flow passage, and a water inlet end of the water inlet flow passage is communicated with the water inlet hole; the water outlet end of the water outlet flow channel is communicated with the water outlet hole; and the variable-diameter flow channel is connected between the water outlet flow channel and the water inlet flow channel in parallel.
In a preferred embodiment of the present invention, the number of the water inlet channel is the same as that of the water outlet channel.
In a preferred embodiment of the present invention, the number of the flow passages of the reducing flow passage is greater than the number of the flow passages of the water inlet flow passage or the water outlet flow passage.
In a preferred embodiment of the present invention, the number of the water inlet channel or the water outlet channel is set to be 2.
In a preferred embodiment of the present invention, the number of the flow passages of the variable diameter flow passage is set to 3 to 6.
In a preferred embodiment of the present invention, the water inlet and the water outlet are disposed on the same side of the plate body.
The utility model has the advantages that: the flow field plate of the fuel cell increases the length of the flow channel in a limited space, and effectively improves the action effect of fluid; the design of the variable-diameter flow channel ensures the distribution uniformity and the speed distribution of the liquid in the whole flow field, and ensures that the pressure loss in the whole flow field is small. In the reducing flow passage, the fluid is distributed more uniformly and covers all the flow passages. The fluid velocity distribution consistency is good, and the mass and heat transfer effects of all the flow channels are better ensured; the two plate bodies are connected in parallel up and down (the water inlet shares a water inlet pipe, the water outlet shares a water outlet pipe), the integral pressure drop of the parallel flow field is small, the power consumption of a driving system (pump) is reduced, and the integral efficiency is improved.
Drawings
The invention is further explained below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of a flow field plate of a fuel cell according to an embodiment of the present invention.
Wherein,
1, a plate body; 2, water inlet holes;
3, water outlet; 4, a flow field area;
41 water inlet flow channel; 42 water outlet flow channel;
43 variable diameter flow passage.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
Example, as shown in fig. 1, a flow field plate for a fuel cell includes a plate body 1, water inlet holes 2, water outlet holes 3, and a flow field region 4.
The plate body 1 is a rectangular plate made of aluminum alloy, stainless steel and copper, and the water inlet hole 2 and the water outlet hole 3 are respectively formed in two ends of one side edge of the plate body 1.
In this embodiment, the flow field region 4 is rectangular and is disposed on one surface of the plate body 1; flow field area 4 is equipped with many runners, and many runners are parallel to each other and end to end forms snakelike runner, inlet opening 2 communicate in snakelike runner's the end of intaking, apopore 3 communicate in snakelike runner's the end of water outlet.
Specifically, the flow passages include a water inlet flow passage 41, a water outlet flow passage 42 and a reducing flow passage 43, and the water inlet end of the water inlet flow passage 41 is communicated with the water inlet hole 2; the water outlet end of the water outlet flow channel 42 is communicated with the water outlet hole 3; the reducing flow passage 43 is connected in parallel between the water outlet flow passage 42 and the water inlet flow passage 41.
In this embodiment, the number of the inlet channels 41 is the same as that of the outlet channels 42, and the number of the inlet channels is 2. The number of the reducing flow passages 43 is greater than that of the water inlet flow passage 41 or the water outlet flow passage 42. The number of the flow passages of the reducing flow passage 43 is set to be 3-6. Preferably 4 strips.
In specific implementation, the fluid flows into the reducing flow channel 43 along the water inlet flow channel 41 and then enters the water outlet flow channel 42 through the reducing flow channel 43, and the reducing flow channel 43 divides and divides the liquid, so that the distribution uniformity and the speed distribution of the liquid in the whole flow field are ensured, and the pressure loss in the whole flow field is ensured to be small. In the variable diameter flow passage 43, the fluid is distributed relatively uniformly, covering all the flow passages. The fluid velocity distribution consistency is good, and the mass and heat transfer effects of all the flow channels are better ensured;
the two plate bodies 1 are connected in parallel up and down (the water inlet shares a water inlet pipe, the water outlet shares a water outlet pipe), the integral pressure drop of the parallel flow field is small, the power consumption of a driving system (pump) is reduced, and the integral efficiency is improved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A flow field plate for a fuel cell, comprising
A plate body;
the water inlet is formed in the plate body;
the water outlet is formed in the plate body;
the flow field area is arranged on one surface of the plate body;
the flow field area is provided with a plurality of runners, the runners are parallel to each other and form a snake-shaped runner in an end-to-end mode, the water inlet hole is communicated with the water inlet end of the snake-shaped runner, and the water outlet hole is communicated with the water outlet end of the snake-shaped runner.
2. The fuel cell flow field plate of claim 1, wherein the flow channel comprises
The water inlet end of the water inlet flow passage is communicated with the water inlet hole;
the water outlet end of the water outlet flow channel is communicated with the water outlet hole;
and the variable-diameter flow channel is connected between the water outlet flow channel and the water inlet flow channel in parallel.
3. A fuel cell flow field plate as claimed in claim 2, in which the inlet flow channels are of the same number as the outlet flow channels.
4. A fuel cell flow field plate as claimed in claim 2 or 3, in which the number of flow channels of the variable diameter flow channels is greater than the number of flow channels of the inlet or outlet flow channels.
5. A fuel cell flow field plate as claimed in claim 4, in which the number of inlet or outlet flow channels is 2.
6. The fuel cell flow field plate of claim 4, wherein the number of the flow channels of the variable diameter flow channels is set to be 3-6.
7. The fuel cell flow field plate of claim 6, wherein the water inlet and outlet apertures are provided on the same side of the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720814757.3U CN206878106U (en) | 2017-07-06 | 2017-07-06 | A kind of fuel cell flow field board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720814757.3U CN206878106U (en) | 2017-07-06 | 2017-07-06 | A kind of fuel cell flow field board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878106U true CN206878106U (en) | 2018-01-12 |
Family
ID=61329508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720814757.3U Active CN206878106U (en) | 2017-07-06 | 2017-07-06 | A kind of fuel cell flow field board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878106U (en) |
-
2017
- 2017-07-06 CN CN201720814757.3U patent/CN206878106U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |