CN112510227A - Water separation structure on air inlet side of fuel cell - Google Patents
Water separation structure on air inlet side of fuel cell Download PDFInfo
- Publication number
- CN112510227A CN112510227A CN202110017410.7A CN202110017410A CN112510227A CN 112510227 A CN112510227 A CN 112510227A CN 202110017410 A CN202110017410 A CN 202110017410A CN 112510227 A CN112510227 A CN 112510227A
- Authority
- CN
- China
- Prior art keywords
- plate
- air inlet
- outlet
- section
- inlet cavity
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000001257 hydrogen Substances 0.000 claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 2
- 230000005484 gravity Effects 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
-
- 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
- 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 invention relates to a water separation structure at the air inlet side of a fuel cell, wherein the fuel cell comprises an electricity taking plate pressing plate, and a hydrogen inlet is formed in the electricity taking plate pressing plate; the hydrogen inlet is formed by communicating an inlet arranged on the outer side surface of the electricity taking plate pressure plate, an outlet arranged on the inner side surface of the electricity taking plate pressure plate and an air inlet cavity arranged in the electricity taking plate pressure plate, the outlet is positioned above the inlet in an oblique manner, the air inlet cavity is divided into three sections, a first section, a second section and a third section are sequentially arranged from the inlet side to the outlet side, the air inlet cavity of the first section is a transverse cavity, the front end of the air inlet cavity of the first section is connected with the inlet, the air inlet cavity of the second section is a vertical cavity, the middle part of the air inlet cavity of the second section is connected with the tail end of the first air inlet cavity, and the front end of; the second section of air inlet cavity is opposite to the side wall of the first air inlet cavity, so that the air inlet side water separation structure is formed; and a drainage groove is arranged in the power taking plate pressing plate. The hydrogen gas water separator can greatly reduce or even remove the water in the hydrogen gas entering the galvanic pile, and avoids the water entering the galvanic pile.
Description
Technical Field
The invention relates to a fuel cell, in particular to a water separation structure on an air inlet side of the fuel cell.
Background
For pem fuel cells, water balance inside the stack is critical to its output performance, durability and service life. Under normal conditions, hydrogen input into the fuel cell inevitably contains a certain amount of water, and in the past, the water enters the galvanic pile along with the hydrogen and is accumulated in the galvanic pile, so that the water balance inside the galvanic pile is damaged, and the output performance, the durability and the service life of the galvanic pile are influenced.
In addition, in the fuel cell system, water freezes in the flow path of the reactant gas, which may cause damage to the membrane electrode, i.e., hydrogen embrittlement, and thus insufficient membrane strength.
Disclosure of Invention
In order to solve the problems, the invention provides a water separation structure on the air inlet side of a fuel cell.
The technical scheme of the invention is as follows:
a fuel cell air inlet side water separation structure comprises an electricity taking plate pressing plate; the electricity taking plate pressing plate is an insulating plate, and a hydrogen inlet is formed in the electricity taking plate pressing plate; the hydrogen inlet is formed by communicating an inlet arranged on the outer side surface of the electricity taking plate pressure plate, an outlet arranged on the inner side surface of the electricity taking plate pressure plate and an air inlet cavity arranged in the electricity taking plate pressure plate, the inlet and the outlet are staggered, the outlet is positioned above the inlet in an oblique manner, the air inlet cavity is divided into three sections, a first section, a second section and a third section are sequentially arranged from the inlet side to the outlet side, the first section of the air inlet cavity is a transverse cavity, the front end of the first section of the air inlet cavity is connected with the inlet, the second section of the air inlet cavity is a vertical cavity, the middle part of the second section of the air inlet cavity is connected with the tail end of the first air inlet cavity, and the front; the second section of air inlet cavity is opposite to the side wall of the first air inlet cavity, so that the air inlet side water separation structure is formed.
And a drainage groove is arranged in the electricity taking plate pressing plate, is an inclined groove, and is connected with the lower end of the second section of air inlet cavity at the upper end and connected with an air outlet arranged on the electricity taking plate pressing plate at the lower end.
When the device is used, the hydrogen containing water enters from the inlet under the air pressure, sequentially passes through the first section air inlet cavity, the second section air inlet cavity and the third air inlet cavity, and finally enters the galvanic pile from the outlet; the design that the first section of air inlet cavity is a transverse cavity and the second air inlet cavity is a vertical cavity is adopted, the water-containing hydrogen from the first air inlet cavity can inevitably impact the side wall of the second air inlet cavity under the air pressure, the hydrogen is separated from the water, meanwhile, the water moves downwards to a water drainage tank along the side wall of the second air inlet cavity under the action of the gravity of the water, the water drainage tank discharges the water through empty discharge, the hydrogen upwards enters the third air inlet cavity and finally enters the electric pile through an outlet; the water in the hydrogen entering the galvanic pile is greatly reduced and even removed, so that the water is prevented from entering the galvanic pile and damaging the water balance in the galvanic pile.
The outlet is a first outlet, the outer side surface of the power taking plate pressing plate is also provided with an outlet which is a second outlet, and the second outlet is connected with the tail end of the third air inlet cavity and is opposite to the first outlet; the second outlet is a pressure sensor mounting port; for attaching a pressure sensor to detect the intake pressure.
The power taking plate pressing plate comprises an outer side plate and an inner side plate, wherein the outer side plate and the inner side plate are overlapped and fixedly connected through bolts and nuts.
The outer side plate is respectively provided with a hole to form the inlet and the second outlet, and the inner side plate is provided with a hole to form the first outlet.
The side face of the outer side plate opposite to the side face of the inner side plate is provided with a groove which is a contour groove, and the inner side plate covers the contour groove to jointly form the air inlet cavity and the drainage groove.
An O-shaped sealing strip is arranged between the outer side plate and the inner side plate; the O-shaped sealing strip surrounds the contour groove for one circle.
The side surface of the inner side plate opposite to the outer side plate is provided with a groove which is an arc groove; the arc groove faces the inlet and is located in the contour groove.
The diameter of the drainage groove is 0.5-5 mm; the design of elongated water drainage tank like this for during the moisture that divides out gets into water drainage tank, can seal water drainage tank, prevent that hydrogen from flowing out in the water drainage tank.
The hydrogen stack hydrogen gas water gas hydrogen.
Drawings
Fig. 1 is a perspective view of a fuel cell.
Fig. 2 is a perspective view of the take-out plate.
Fig. 3 is a front view of the charge board pressure plate.
Fig. 4 is a side view of the voltage board.
FIG. 5 is a schematic sectional view taken along the direction of line A-A in FIG. 4 (1).
Fig. 6 is a schematic sectional view along the direction of fig. 4A-a (2).
Fig. 7 is an exploded view of a voltage plate pack.
In the drawing, a fuel cell 1, a power taking plate pressure plate 11, an outer side plate 111, a contour groove 1111, an inner side plate 112, an O-shaped sealing strip 113, a hydrogen inlet 12, an inlet 121, a first outlet 122, an air inlet cavity 123, a first section air inlet cavity 1231, a second section air inlet cavity 1232, a third section air inlet cavity 1233, a water drainage groove 124, an air outlet 13 and a pressure sensor mounting port 14 are arranged.
Detailed Description
As shown in the figure, the fuel cell 1 comprises a power-taking plate 11; the electricity taking plate pressing plate 11 is an insulating plate, and a hydrogen inlet 12 is arranged on the electricity taking plate pressing plate; the hydrogen inlet 12 is formed by communicating an inlet 121 arranged on the outer side surface of the electricity taking plate pressing plate 11, a first outlet 122 arranged on the inner side surface of the electricity taking plate pressing plate 11 and an air inlet cavity 123 arranged in the electricity taking plate pressing plate 11, the inlet 121 and the first outlet 122 are staggered, the first outlet 122 is positioned above the inlet 121 in an inclined manner, the air inlet cavity 123 is divided into three sections, a first section 1231, a second section 1232 and a third section 1233 are sequentially arranged from the inlet side to the outlet side, the first section air inlet cavity 1231 is a transverse cavity, the front end of the first section air inlet cavity is connected with the inlet 121, the second section air inlet cavity 1232 is a vertical cavity, the middle part of the second section air inlet cavity is connected with the tail end of the first section air inlet cavity 1231, and the front end of the third section air inlet cavity 1233 is excessively connected with; the second section of air inlet cavity 1232 is opposite to the side wall of the first air inlet cavity 1231, namely, the air inlet side water separation structure is formed; a drainage groove 124 is formed in the electricity taking plate pressing plate 11, the drainage groove 124 is a chute, the upper end of the drainage groove is connected with the lower end of the second section of air inlet cavity 1232, and the lower end of the drainage groove is connected with an air outlet 13 formed in the electricity taking plate pressing plate 11; a second outlet is further arranged on the outer side surface of the electricity taking plate pressing plate 11, and the second outlet is connected with the tail end of the third air inlet cavity 1231 and is opposite to the first outlet 122; the second outlet is a pressure sensor mounting port 14; the power taking plate pressing plate 11 comprises an outer plate 111 and an inner plate 112, wherein the outer plate 111 and the inner plate 112 are overlapped and fixedly connected through bolts and nuts; the outer side plate 111 is provided with holes to form the inlet 121 and the second outlet, and the inner side plate 112 is provided with holes to form the first outlet 122; the side surface of the outer side plate 111 opposite to the inner side plate 112 is grooved, and is a contour groove 1111, the inner side plate 112 covers the contour groove 1111, and the air inlet cavity 123 and the water discharge groove 124 are jointly formed; an O-shaped sealing strip 113 is arranged between the outer side plate 111 and the inner side plate 112; the O-shaped sealing strip 113 surrounds the contour groove 1111 for one circle; the side surface of the inner side plate 112 opposite to the outer side plate 111 is provided with a groove which is an arc groove; the arc groove is opposite to the inlet 121 and is positioned in the contour groove 1111; the diameter of the drainage channel 124 is 0.5-5 mm.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. A fuel cell air inlet side water separation structure comprises an electricity taking plate pressing plate; the electricity taking plate pressing plate is an insulating plate, and a hydrogen inlet is formed in the electricity taking plate pressing plate; the hydrogen gas inlet is characterized by being formed by communicating an inlet arranged on the outer side surface of the electricity taking plate pressure plate, an outlet arranged on the inner side surface of the electricity taking plate pressure plate and a gas inlet cavity arranged in the electricity taking plate pressure plate, wherein the inlet and the outlet are staggered, the outlet is positioned above the inlet in an oblique manner, the gas inlet cavity is divided into three sections, a first section, a second section and a third section are sequentially arranged from the inlet side to the outlet side, the gas inlet cavity of the first section is a transverse cavity, the front end of the first section is connected with the inlet, the gas inlet cavity of the second section is a vertical cavity, the middle part of the gas inlet cavity is connected with the tail end of the first gas inlet cavity, and the front end of the gas inlet cavity of the; the second section of air inlet cavity is opposite to the side wall of the first air inlet cavity, so that the air inlet side water separation structure is formed;
and a drainage groove is arranged in the electricity taking plate pressing plate, is an inclined groove, and is connected with the lower end of the second section of air inlet cavity at the upper end and connected with an air outlet arranged on the electricity taking plate pressing plate at the lower end.
2. The fuel cell air inlet side water separation structure of claim 1, wherein the outlet is a first outlet, the outer side surface of the electricity taking plate pressing plate is further provided with an outlet which is a second outlet, and the second outlet is connected with the tail end of the third air inlet cavity and is opposite to the first outlet; the second outlet is a hydrogen circulation port.
3. The fuel cell intake-side water separation structure according to claim 2, wherein the charge plate pressing plate includes an outer plate and an inner plate, and the outer plate and the inner plate are stacked and fixedly connected by bolts and nuts;
the outer side plate is respectively provided with a hole to form the inlet and the second outlet, and the inner side plate is provided with a hole to form the first outlet;
the side face of the outer side plate opposite to the side face of the inner side plate is provided with a groove which is a contour groove, and the inner side plate covers the contour groove to jointly form the air inlet cavity and the drainage groove.
4. The fuel cell intake-side water separation structure according to claim 2, wherein an O-shaped seal strip is installed between the outer side plate and the inner side plate; the O-shaped sealing strip surrounds the contour groove for one circle.
5. The fuel cell intake-side water separation structure according to claim 3, wherein a side surface of the inner side plate opposite to the outer side plate is provided with a groove which is a circular arc groove; the arc groove faces the inlet and is located in the contour groove.
6. The fuel cell intake-side water separation structure according to claim 1, wherein the water discharge groove has a diameter of 0.5 to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017410.7A CN112510227A (en) | 2021-01-07 | 2021-01-07 | Water separation structure on air inlet side of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017410.7A CN112510227A (en) | 2021-01-07 | 2021-01-07 | Water separation structure on air inlet side of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112510227A true CN112510227A (en) | 2021-03-16 |
Family
ID=74952330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110017410.7A Pending CN112510227A (en) | 2021-01-07 | 2021-01-07 | Water separation structure on air inlet side of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112510227A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035008A (en) * | 2010-11-16 | 2011-04-27 | 上海恒劲动力科技有限公司 | Fuel battery system using vessel-contained oxygen gas as oxidizer and control system thereof |
| US20180123148A1 (en) * | 2016-10-27 | 2018-05-03 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system and vehicle |
| CN110336056A (en) * | 2019-08-16 | 2019-10-15 | 南通百应能源有限公司 | Steam-water separator and its fuel cell system |
| CN110350227A (en) * | 2019-08-11 | 2019-10-18 | 河南豫氢动力有限公司 | A kind of fuel cell end plate collecting hydrogen water separation function |
| CN214625118U (en) * | 2021-01-07 | 2021-11-05 | 南通百应能源有限公司 | Water separation structure on air inlet side of fuel cell |
-
2021
- 2021-01-07 CN CN202110017410.7A patent/CN112510227A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035008A (en) * | 2010-11-16 | 2011-04-27 | 上海恒劲动力科技有限公司 | Fuel battery system using vessel-contained oxygen gas as oxidizer and control system thereof |
| US20180123148A1 (en) * | 2016-10-27 | 2018-05-03 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system and vehicle |
| CN110350227A (en) * | 2019-08-11 | 2019-10-18 | 河南豫氢动力有限公司 | A kind of fuel cell end plate collecting hydrogen water separation function |
| CN110336056A (en) * | 2019-08-16 | 2019-10-15 | 南通百应能源有限公司 | Steam-water separator and its fuel cell system |
| CN214625118U (en) * | 2021-01-07 | 2021-11-05 | 南通百应能源有限公司 | Water separation structure on air inlet side of fuel cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4623795B2 (en) | Fuel cell stack | |
| JP2000090954A5 (en) | ||
| CN111682242A (en) | Gas-water separation device for hydrogen fuel cell engine | |
| CN214625118U (en) | Water separation structure on air inlet side of fuel cell | |
| CN214797484U (en) | Vehicle, fuel cell engine and multi-stack medium distribution device thereof | |
| CN102035003B (en) | Solid polymer electrolyte fuel cell | |
| CN102187508A (en) | Fuel cell | |
| CN101587965B (en) | Internally-connected square plastic accumulator | |
| CN113013446B (en) | Packaging structure of inclined fuel cell stack | |
| CN112510227A (en) | Water separation structure on air inlet side of fuel cell | |
| CN210489744U (en) | Membrane humidifier for vehicle fuel cell engine system | |
| JP4062797B2 (en) | Gas manifold integrated separator for solid polymer electrolyte fuel cell and solid polymer electrolyte fuel cell | |
| CN211320142U (en) | Rich solution AGM valve control type lead-acid storage battery | |
| CN113451701A (en) | Battery structure with good exhaust effect | |
| CN220710546U (en) | Battery module and battery pack | |
| CN108461783B (en) | Packaging structure for improving ventilation of fuel cell stack module | |
| CA2679999C (en) | Fuel cell system having fuel cell stack with impurity storage | |
| JP5747677B2 (en) | Fuel cell stack | |
| RU196225U1 (en) | Metal-air current source | |
| CN217522062U (en) | Fuel cell humidifier and fuel cell system | |
| CN211828975U (en) | Rich solution AGM valve control type lead-acid storage battery shell structure | |
| KR101920786B1 (en) | Humidfication device for fuel cell stack and fuel cell system using the same | |
| CN215427806U (en) | Float type gas-liquid separator | |
| CN214588936U (en) | Fuel cell stack | |
| CN219497948U (en) | Top cover structure and battery |
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 |