CN114199498A - Wind tunnel type hydrogen separator for fuel cell environmental chamber - Google Patents
Wind tunnel type hydrogen separator for fuel cell environmental chamber Download PDFInfo
- Publication number
- CN114199498A CN114199498A CN202111243580.3A CN202111243580A CN114199498A CN 114199498 A CN114199498 A CN 114199498A CN 202111243580 A CN202111243580 A CN 202111243580A CN 114199498 A CN114199498 A CN 114199498A
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- Prior art keywords
- hydrogen
- fuel cell
- separator
- air
- plate
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 48
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 48
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 230000007613 environmental effect Effects 0.000 title claims abstract description 17
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title 1
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000007791 dehumidification Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
-
- 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
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (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 discloses a hydrogen separator of an environmental chamber of a wind tunnel type fuel cell, which comprises a separator inlet, an expansion port, a rectifying plate, a flow distribution plate, a drainage tube and a circulating air pipe, wherein the expansion port is arranged on the separator inlet; and the outer end of the separator inlet is connected with an exhaust air duct of the cabin body. The expansion mouth sets up in separator entry inner, and the expansion mouth is the loudspeaker form expansion, and the cowling panel comprises the plate that a plurality of levels set up, and the cowling panel is installed in expansion mouth rear side, and the flow distribution plate is located the cowling panel rear side, cuts apart drainage tube and circulation wind pipe, and the drainage tube outwards extends up for upwards discharge the hydrogenous air that the flow distribution plate separates, and the circulation wind pipe outwards extends down for discharge no hydrogen air downwards. Increase circulated air flow cross-sectional area through setting up the expansion mouth, reduce the circulated air velocity of flow, combine the interior cowling panel of wind channel to realize hydrogen separation, and through wind channel hydrogen discharge fan, discharge the higher air of hydrogen content, ensure the high security in fuel cell environmental test cabin.
Description
Technical Field
The invention relates to the technical field of gas separation devices, in particular to a hydrogen separator of an environment cabin of a wind tunnel type fuel cell.
Background
With the increasing severity of energy crisis and environmental pollution problems, new energy automobiles have rapidly developed opportunities, wherein hydrogen fuel cell automobiles are used as ultimate clean energy, have unique technical and environmental protection advantages in the application aspect of trucks and large passenger automobiles, and are one of the main directions for the development of new energy automobiles in the future. The test chamber of the hydrogen fuel cell power generation system (hereinafter referred to as system) is restricted by the prior art due to the factors of high hydrogen-related safety requirement, large heat productivity, large fresh air demand and the like, and the common environmental test chamber which is conventionally used at present cannot meet the test requirement of the fuel cell and cannot support the safe and reliable operation of the fuel cell system.
The existing universal environmental test chamber has the following defects: 1. the traditional environmental test chamber adopts a pumping type hydrogen sensor arranged on the top of the chamber, and the actual hydrogen concentration in the chamber cannot be effectively detected; 2. the traditional environmental test chamber adopts a top-mounted pumping and exhausting device, so that the reliable separation of hydrogen and air cannot be realized; 3. the traditional cabin internal circulation mode can cause the hydrogen concentration at the cabin internal circulation air inlet to be too high, and has great potential safety hazard.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the hydrogen separator of the wind tunnel type fuel cell environmental chamber, so as to realize hydrogen separation and ensure high safety of the fuel cell environmental test chamber.
Therefore, the invention provides a hydrogen separator of an environment cabin of a wind tunnel type fuel cell, which comprises a separator inlet, an expansion port, a rectifying plate, a flow distribution plate, a drainage tube and a circulating air pipe; and the outer end of the inlet of the separator is connected with an exhaust air duct of the cabin body.
The expansion mouth sets up separator entry inner, the expansion mouth is the loudspeaker form expansion, the cowling panel comprises the plate that a plurality of levels set up, the cowling panel install in expansion mouth rear side, the flow distribution plate is located the cowling panel rear side, it is right the drainage tube with the circulation tuber pipe is cut apart, the drainage tube outwards extends up, be used for with the hydrogenous air of flow distribution plate separation upwards discharges, the circulation tuber pipe outwards extends down for discharge under the hydrogenless air.
Further, the tail end of the drainage tube is provided with a hydrogen discharge port, and the hydrogen discharge port is provided with an explosion-proof hydrogen discharge pump.
Furthermore, a circulating air duct is arranged at the outer end of the circulating air duct, and the circulating air duct is communicated with the fuel cell test cabin.
Further, the rectifying plate and the flow dividing plate are made of a metal thin plate and are well grounded to prevent generation of static electricity.
Further, the exhaust air duct comprises a cabin air outlet connected with the cabin, a fresh air inlet, and an air blower and a heat exchange and dehumidification device which are arranged in the pipeline.
According to the hydrogen separator of the wind tunnel type fuel cell environmental chamber, the expansion opening is arranged, the circulation cross section area of circulating air is increased, the flow velocity of the circulating air is reduced, the hydrogen separation is realized by combining the rectifying plate in the air channel, and air with high hydrogen content is discharged through the hydrogen discharge fan in the air channel, so that the high safety of the fuel cell environmental test chamber is ensured.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a hydrogen separator of an environmental chamber of a wind tunnel type fuel cell of the invention.
Description of the reference numerals
1. A separator inlet; 2. expanding the mouth; 3. a rectifying plate; 4. a flow distribution plate; 5. a drainage tube; 6. a hydrogen discharge port; 7. a circulating air duct; 8. a circulating air duct; 9. an air outlet; 10. a fresh air inlet; 11. a blower; 12. a heat exchange and dehumidification device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the hydrogen separator of the environmental chamber of the wind tunnel type fuel cell of the present invention comprises a separator inlet 1, an expansion port 2, a rectifying plate 3, a flow distribution plate 4, a drainage tube 5, a hydrogen discharge port 6, a circulating air tube 7, and a circulating air duct 8.
Specifically, the outer end of the separator inlet 1 is connected with an exhaust air duct of the cabin body; the rear section of the inlet 1 of the separator enters an expansion port 2, and the expansion port 2 expands in a trumpet shape to increase the air flow area, reduce the air flow pressure and reduce the flow velocity, so that hydrogen with the density lower than the average density of air can be separated from the air conveniently.
The fairing 3 comprises the plate of a plurality of horizontal settings, and fairing 3 is installed in the 2 rear sides of expansion mouth for the rectification air to eliminate the vortex in the air. Avoiding the hydrogen from being gathered in a local turbulent flow.
The draft tube 5 and the circulation air tube 7 are located at the rear end of the separator and at the rear side of the rectifying plate 3, the draft tube 5 extends upwards outwards for guiding the hydrogen-containing air separated by the splitter plate 4 into the hydrogen discharge port 6, the hydrogen discharge port is installed at the tail end of the draft tube 5 for discharging the hydrogen-containing air, and the hydrogen discharge port 6 is provided with an explosion-proof hydrogen discharge pump. The circulating air pipe 7 extends outwards and downwards and is used for introducing hydrogen-free air into the circulating air duct 8; and the circulating air duct 8 sends the circulating air back to the fuel cell test chamber.
The splitter plate 4 is located at the rear side of the rectifying plate 3, and divides the draft tube 5 and the circulating air tube 7 for separating the air with high hydrogen content from the air without hydrogen. The draft tube 5 is positioned above and behind the splitter plate 4, the circulating air tube 7 is positioned below the splitter plate 4, hydrogen gas having a density lower than the average density of air passes above the separator plate, and ordinary air passes below the separator plate.
Wherein the rectifying plate 3 and the flow dividing plate 4 are made of a metal thin plate and are well grounded to prevent generation of static electricity.
In the scheme, the exhaust air duct comprises a cabin air outlet 9 connected with the cabin, a fresh air inlet 10, an air blower 11 and a heat exchange and dehumidification device 12 which are installed in the pipeline.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A hydrogen separator of an environmental chamber of a wind tunnel type fuel cell is characterized by comprising a separator inlet (1), an expansion opening (2), a rectifying plate (3), a flow distribution plate (4), a drainage tube (5) and a circulating air pipe (7); the outer end of the separator inlet (1) is connected with an exhaust air duct of the cabin body;
the expansion port (2) is arranged at the inner end of the separator inlet (1), the expansion port (2) is expanded in a trumpet shape, the rectifying plate (3) is composed of plates arranged horizontally, the rectifying plate (3) is arranged at the rear side of the expansion port (2),
flow distribution plate (4) are located cowling panel (3) rear side, it is right drainage tube (5) with circulation tuber pipe (7) are cut apart, drainage tube (5) outwards extend up, are used for with the hydrogenous air of flow distribution plate (4) separation upwards discharges, circulation tuber pipe (7) outwards extend down for discharge under the no hydrogen air.
2. A wind tunnel type fuel cell environment cabin hydrogen separator as claimed in claim 1, characterized in that the end of the draft tube (5) is provided with a hydrogen discharge port (6), and the hydrogen discharge port (6) is provided with an explosion-proof hydrogen discharge pump.
3. The wind tunnel type fuel cell environment cabin hydrogen separator as claimed in claim 1, characterized in that the outer end of the circulating air pipe (7) is provided with a circulating air duct (8), and the circulating air duct (8) is communicated with the fuel cell test cabin.
4. A wind tunnel fuel cell environment compartment hydrogen separator according to claim 1, characterized in that the current plate (3) and the current dividing plate (4) are made of metal thin plate and are well grounded to prevent static electricity from being generated.
5. The hydrogen separator of the environmental chamber of the wind tunnel type fuel cell as claimed in claim 1, wherein the exhaust air duct comprises a chamber body air outlet (9) connected with the chamber body, a fresh air inlet (10), and a blower (11) and a heat exchange and dehumidification device (12) installed in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243580.3A CN114199498B (en) | 2021-10-25 | 2021-10-25 | Hydrogen separator for environmental chamber of wind tunnel type fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243580.3A CN114199498B (en) | 2021-10-25 | 2021-10-25 | Hydrogen separator for environmental chamber of wind tunnel type fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114199498A true CN114199498A (en) | 2022-03-18 |
| CN114199498B CN114199498B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111243580.3A Active CN114199498B (en) | 2021-10-25 | 2021-10-25 | Hydrogen separator for environmental chamber of wind tunnel type fuel cell |
Country Status (1)
| Country | Link |
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| CN (1) | CN114199498B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883604A (en) * | 2022-05-11 | 2022-08-09 | 江苏凌氢新能源科技有限公司 | Fresh air system for fuel cell environmental test chamber |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Publication date |
|---|---|
| CN114199498B (en) | 2024-01-30 |
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