CN218471997U - Hydrogen pump cover plate of integrated ejector - Google Patents
Hydrogen pump cover plate of integrated ejector Download PDFInfo
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- CN218471997U CN218471997U CN202222378874.3U CN202222378874U CN218471997U CN 218471997 U CN218471997 U CN 218471997U CN 202222378874 U CN202222378874 U CN 202222378874U CN 218471997 U CN218471997 U CN 218471997U
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- hydrogen pump
- ejector
- integrated
- inlet channel
- cover plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a hydrogen pump apron of integrated ejector, includes integrated casing, integrated casing rear side is equipped with hydrogen pump cover plate, and the front side is equipped with the ejector, and the left surface is equipped with first intercommunication chamber, and the right surface is equipped with second intercommunication chamber, be equipped with air inlet and gas vent on the hydrogen pump cover plate, the air inlet is linked together with the hydrogen pump inlet channel who establishes to the ejector direction extension in integrated casing, one side of hydrogen pump inlet channel is linked together with the ejector inlet channel who establishes to first intercommunication chamber extension in integrated casing, the gas vent is linked together with establish the hydrogen pump exhaust passage who extends to second intercommunication chamber in integrated casing, be equipped with the check valve in ejector inlet channel and the hydrogen pump exhaust passage respectively. The integrated degree is high, the occupied space is small, the transmission distance is short, the loss in the transmission process is reduced, the transmission efficiency is improved, the air intake and exhaust amount of the hydrogen supply subsystem is balanced, the gas backflow can be avoided through the check valve, and the normal operation of the fuel cell hydrogen supply subsystem is ensured.
Description
The technical field is as follows:
the utility model relates to a hydrogen pump cover plate of an integrated ejector.
The background art comprises the following steps:
the current development of new energy fuel cell vehicles is considered as an important link of traffic energy power conversion, and in order to ensure the normal work of a fuel cell engine, the fuel cell engine generally needs auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem and a circulating water cooling management subsystem.
In a fuel cell hydrogen supply subsystem, a hydrogen circulating pump and an ejector can be matched with each other to realize pressurization of hydrogen, at present, the hydrogen circulating pump and the ejector are generally connected through a pipeline, the integration degree is low, the occupied space is large, the transmission distance is long, loss can be generated in the transmission process, the transmission efficiency is reduced, although some theoretical concepts of integration of the hydrogen circulating pump and the ejector also appear in recent years, specific structural design does not exist, particularly for a large-displacement hydrogen supply subsystem, the air inlet pipeline, the air outlet pipeline and a communication pipeline between the hydrogen circulating pump and the ejector have strict requirements, if the design is unreasonable, the air inlet and outlet quantity is unbalanced, and the stable work of the hydrogen supply subsystem is influenced; in addition, when the hydrogen circulating pump is communicated with the ejector, the problem of short circuit caused by gas backflow easily occurs, and the normal operation of the hydrogen supply subsystem of the fuel cell is influenced.
In conclusion, the integration problem of the hydrogen circulating pump and the ejector becomes a technical problem to be solved urgently in the industry.
The utility model has the following contents:
the utility model discloses a remedy prior art's not enough, provide a hydrogen pump apron of integrated ejector, solved hydrogen circulating pump in the past and the integrated degree of ejector low, the problem that occupation space is big, solved the unbalanced problem of hydrogen supply subsystem air intake and exhaust volume in the past, the problem of the gas adverse current appears easily when having solved hydrogen circulating pump in the past and ejector intercommunication.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a hydrogen pump cover plate of an integrated ejector comprises an integrated shell, wherein a hydrogen pump cover plate is arranged on the rear side of the integrated shell, an ejector is arranged on the front side of the integrated shell, a first communicating cavity is formed in the surface of the left side of the integrated shell, a second communicating cavity is formed in the surface of the right side of the integrated shell, an air inlet and an air outlet are formed in the hydrogen pump cover plate, the air inlet is communicated with a hydrogen pump air inlet channel which is formed in the integrated shell and extends towards the ejector, one side of the hydrogen pump air inlet channel is communicated with an ejector air inlet channel which is formed in the integrated shell and extends towards the first communicating cavity, the air outlet is communicated with a hydrogen pump exhaust channel which is formed in the integrated shell and extends towards the second communicating cavity, and one-way valves are respectively arranged in the ejector air inlet channel and the hydrogen pump exhaust channel; the ejector comprises a low-pressure suction cavity which is arranged in the integrated shell and communicated with the first communicating cavity, a high-pressure nozzle is arranged in the low-pressure suction cavity, a mixing cavity and a diffusion cavity are arranged on the rear side of the low-pressure suction cavity, and the diffusion cavity is communicated with the second communicating cavity.
The integrated shell is made of metal materials or non-metal materials through integral forming.
The hydrogen pump cover plate is used for being fixedly connected with a pressurizing cavity shell of the Roots type hydrogen circulating pump.
The gas inlet channel of the hydrogen pump is a straight channel, and the gas inlet channel of the ejector and the gas outlet channel of the hydrogen pump are smooth transition curved channels.
The diameters of the ejector air inlet channel and the hydrogen pump exhaust channel are slightly smaller than the diameter of the hydrogen pump air inlet channel.
And the one-way valve is arranged at the positions, close to the outlets, of the air inlet channel of the ejector and the exhaust channel of the hydrogen pump.
And the integrated shell is provided with a plurality of mounting and supporting seats.
The utility model adopts the above technical scheme, have following advantage:
through setting up integrated casing, carry out structural design to integrated casing, with the ejector, hydrogen pump inlet channel, ejector inlet channel and hydrogen pump exhaust passage are all integrated in integrated casing, integrated degree is high, occupation space is little, transmission distance is near, the loss in the transmission course has been reduced, transmission efficiency is improved, the intake and exhaust volume of hydrogen supply subsystem is balanced, the steady work of hydrogen supply subsystem has been guaranteed, set up the check valve in ejector inlet channel and the hydrogen pump exhaust passage, can avoid gaseous against the current, in order to guarantee the normal operating of fuel cell hydrogen supply subsystem.
Description of the drawings:
fig. 1 is a front perspective view of the present invention.
Fig. 2 is a schematic view of a rear perspective structure of the present invention.
Fig. 3 is a schematic left-side view of the three-dimensional structure of the present invention.
Fig. 4 is a schematic diagram of a right-side perspective structure of the present invention.
Fig. 5 is a schematic top view of the present invention.
Fig. 6 isbase:Sub>A schematic sectional structure view ofbase:Sub>A-base:Sub>A in fig. 5.
Fig. 7 is a schematic sectional structure view of B-B in fig. 5.
In the figure, 1, an integrated shell, 2, a hydrogen pump cover plate, 3, an ejector, 4, a first communicating cavity, 5, a second communicating cavity, 6, an air inlet, 7, an air outlet, 8, a hydrogen pump air inlet channel, 9, an ejector air inlet channel, 10, a hydrogen pump air outlet channel, 11, a one-way valve, 12, a low-pressure suction cavity, 13, a high-pressure nozzle, 14, a mixing cavity, 15, a diffusion cavity, 16 and an installation supporting seat.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-7, a hydrogen pump cover plate of an integrated ejector comprises an integrated housing 1, wherein a hydrogen pump cover plate 2 is arranged on the rear side of the integrated housing 1, an ejector 3 is arranged on the front side of the integrated housing 1, a first communicating cavity 4 is arranged on the left side surface of the integrated housing, a second communicating cavity 5 is arranged on the right side surface of the integrated housing, an air inlet 6 and an air outlet 7 are arranged on the hydrogen pump cover plate 2, the air inlet 6 is communicated with a hydrogen pump air inlet channel 8 which is arranged in the integrated housing 1 and extends towards the ejector 3, one side of the hydrogen pump air inlet channel 8 is communicated with an ejector air inlet channel 9 which is arranged in the integrated housing 1 and extends towards the first communicating cavity 4, the air outlet 7 is communicated with a hydrogen pump exhaust channel 10 which is arranged in the integrated housing 1 and extends towards the second communicating cavity 5, and a one-way valve 11 is respectively arranged in the ejector air inlet channel 9 and the hydrogen pump exhaust channel 10; the ejector 3 is including establishing in integrated casing 1 with the communicating low pressure suction chamber 12 in first communicating chamber 4, be equipped with high-pressure nozzle 13 in the low pressure suction chamber 12, the low pressure suction chamber 12 rear side is equipped with mixing chamber 14 and diffusion chamber 15, diffusion chamber 15 communicates with each other with second communicating chamber 5.
The integrated housing 1 is made of a metal material or a non-metal material by integral molding.
The hydrogen pump cover plate 2 is used for being fixedly connected with a pressurizing cavity shell of the Roots type hydrogen circulating pump.
The hydrogen pump air inlet channel 8 is a straight channel and is beneficial to gas entering, the ejector air inlet channel 9 and the hydrogen pump exhaust channel 10 are smooth transition curves, the internal space of the integrated shell 1 can be fully utilized, the flow resistance is small, the hydrogen pump air inlet channel is beneficial to gas conduction, and the transmission efficiency is improved.
The diameters of the ejector air inlet channel 9 and the hydrogen pump exhaust channel 10 are slightly smaller than the diameter of the hydrogen pump air inlet channel 8, so that the balance of air inlet and exhaust amount can be ensured.
The one-way valve 11 is arranged at the positions, close to the outlets, of the ejector air inlet channel 9 and the hydrogen pump exhaust channel 10, and is convenient to install and disassemble.
The integrated shell 1 is provided with a plurality of mounting and supporting seats 16 for supporting during mounting.
The working principle is as follows:
when in use, the utility model is arranged on the pressurizing cavity shell of the Roots type hydrogen pump, when the Roots type hydrogen pump operates, gas enters from the gas inlet channel 8 and the gas inlet 6 of the hydrogen pump, and after the interior of the Roots type hydrogen pump is pressurized, the gas is discharged into the second communicating cavity 5 from the gas outlet 7 through the gas outlet channel 10 of the hydrogen pump and the one-way valve 11; a part of gas in the gas inlet channel 8 of the hydrogen pump can also enter the first communicating cavity 4 through the gas inlet channel 9 of the ejector, then enters the low-pressure suction cavity 12 of the ejector 3 through the first communicating cavity 4, and is discharged into the second communicating cavity 5 through the mixing cavity 14 and the diffusion cavity 15, and finally the two parts of gas are discharged outwards through the second communicating cavity 5.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (7)
1. The utility model provides a hydrogen pump apron of integrated ejector which characterized in that: the hydrogen pump comprises an integrated shell, wherein a hydrogen pump cover plate is arranged on the rear side of the integrated shell, an ejector is arranged on the front side of the integrated shell, a first communicating cavity is arranged on the left side surface of the integrated shell, a second communicating cavity is arranged on the right side surface of the integrated shell, an air inlet and an air outlet are arranged on the hydrogen pump cover plate, the air inlet is communicated with a hydrogen pump air inlet channel which is arranged in the integrated shell and extends towards the ejector, one side of the hydrogen pump air inlet channel is communicated with an ejector air inlet channel which is arranged in the integrated shell and extends towards the first communicating cavity, the air outlet is communicated with a hydrogen pump exhaust channel which is arranged in the integrated shell and extends towards the second communicating cavity, and check valves are respectively arranged in the ejector air inlet channel and the hydrogen pump exhaust channel; the ejector comprises a low-pressure suction cavity which is arranged in the integrated shell and communicated with the first communicating cavity, a high-pressure nozzle is arranged in the low-pressure suction cavity, a mixing cavity and a diffusion cavity are arranged on the rear side of the low-pressure suction cavity, and the diffusion cavity is communicated with the second communicating cavity.
2. The hydrogen pump cover plate of an integrated ejector according to claim 1, wherein: the integrated shell is made of metal materials or non-metal materials through integral forming.
3. The hydrogen pump cover plate of an integrated ejector according to claim 1, wherein: the hydrogen pump cover plate is used for being fixedly connected with a pressurizing cavity shell of the Roots type hydrogen circulating pump.
4. The hydrogen pump cover plate of an integrated ejector according to claim 1, wherein: the gas inlet channel of the hydrogen pump is a straight channel, and the gas inlet channel of the ejector and the gas outlet channel of the hydrogen pump are smooth transition curved channels.
5. The hydrogen pump cover plate of an integrated ejector according to claim 4, wherein: the diameters of the ejector air inlet channel and the hydrogen pump exhaust channel are slightly smaller than the diameter of the hydrogen pump air inlet channel.
6. The hydrogen pump cover plate of an integrated ejector according to claim 1, wherein: and the one-way valve is arranged at the positions, close to the outlets, of the air inlet channel of the ejector and the exhaust channel of the hydrogen pump.
7. The hydrogen pump cover plate of an integrated ejector according to claim 1, wherein: and the integrated shell is provided with a plurality of installation supporting seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378874.3U CN218471997U (en) | 2022-09-07 | 2022-09-07 | Hydrogen pump cover plate of integrated ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378874.3U CN218471997U (en) | 2022-09-07 | 2022-09-07 | Hydrogen pump cover plate of integrated ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218471997U true CN218471997U (en) | 2023-02-10 |
Family
ID=85141760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222378874.3U Active CN218471997U (en) | 2022-09-07 | 2022-09-07 | Hydrogen pump cover plate of integrated ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218471997U (en) |
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2022
- 2022-09-07 CN CN202222378874.3U patent/CN218471997U/en active Active
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