CN215869482U - Hydrogen supply component integrated seat for hydrogen path of fuel cell - Google Patents
Hydrogen supply component integrated seat for hydrogen path of fuel cell Download PDFInfo
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- CN215869482U CN215869482U CN202122168425.1U CN202122168425U CN215869482U CN 215869482 U CN215869482 U CN 215869482U CN 202122168425 U CN202122168425 U CN 202122168425U CN 215869482 U CN215869482 U CN 215869482U
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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
A fuel cell hydrogen supply assembly nest, comprising: the integrated shell comprises a gas-water separator shell at the lower part, an ejector shell at the upper part and a buffer cavity shell; a hydrogen return inlet is formed in one side of the gas-water separator shell, a water outlet is formed in the bottom of the gas-water separator shell, a hydrogen return outlet is formed in the top of the gas-water separator shell, and a labyrinth structure is arranged in the gas-water separator shell and used for separating water in the hydrogen-containing mixed gas; the top of the buffer cavity shell is provided with a hydrogen inlet, one side of the buffer cavity shell is provided with a proportional valve mounting hole, and the proportional valve mounting hole is communicated with the hydrogen source inlet. The structure has the advantages that the structure is small in size, small in occupied space and capable of being installed and used in areas with small spaces, a connecting pipeline between hydrogen supply parts of a hydrogen path is omitted, the gas transmission distance is short, energy loss in the transmission process is reduced, the supercharging efficiency is improved, the installation efficiency is high, and the condition of icing and blocking caused by accumulated water in the pipeline when the temperature is too low is avoided.
Description
The technical field is as follows:
the utility model relates to a hydrogen supply component integrated seat of a hydrogen path of a fuel cell.
Background art:
the development of new energy fuel cell automobiles at present is considered as an important link of traffic energy power transformation, 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, a circulating water cooling management subsystem and the like. The fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled. At present, sometimes, a hydrogen circulating pump or an ejector is adopted to circulate the hydrogen-containing mixed gas back to the fuel cell for recycling.
However, in the process of generating electricity by the fuel cell pile, the water generated by the reaction can be taken out by the hydrogen-containing mixed gas, which results in high water vapor content in the hydrogen-containing mixed gas, the humidity is high, before the hydrogen-containing mixed gas enters the hydrogen circulating pump, the water vapor needs to be separated, currently, a gas-water separator is generally adopted, the existing gas-water separator, the hydrogen circulating pump and an ejector are generally arranged in a split mode, the functional components are connected through pipelines, the transmission distance is long, loss can be generated in the transmission process, the transmission efficiency is reduced, the pipeline connection is complex, the installation efficiency is low, the size is large, the occupied space is large, the installation and the use are difficult in small areas, water is easy to accumulate in the pipelines, and the freezing and the blockage are easy to occur when the temperature is too low. Meanwhile, the existing gas-water separator has poor water separation effect, and can not effectively separate residual hydrogen which does not participate in the reaction from water, so that a large amount of water enters a hydrogen circulating pump and a galvanic pile to generate flooding, the power of the galvanic pile is reduced, and the working stability of a fuel cell system is influenced; some water diversion effect is good, but the internal structure is too complex, and the resistance that the hydrogen-containing mixed gas received when passing through is very big, causes the atmospheric pressure greatly reduced of gas-water separator gas outlet to the power consumption of hydrogen circulating pump has been increased.
In summary, the integration problem of the hydrogen supply component of the hydrogen circuit of the fuel cell has become a technical problem to be solved urgently in the industry.
The utility model has the following contents:
in order to make up for the defects of the prior art, the utility model provides a hydrogen supply component integrated base for a fuel cell hydrogen path, which solves the problems of split arrangement, large volume and large occupied space of the prior hydrogen supply component, solves the problems of complex connection and easy water accumulation, icing and blockage of the prior hydrogen supply component through a pipeline, and solves the problems of long transmission distance and loss in the transmission process of the prior hydrogen supply component through pipeline connection.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a fuel cell hydrogen supply assembly nest, comprising:
the integrated shell comprises a gas-water separator shell at the lower part, an ejector shell at the upper part and a buffer cavity shell;
a hydrogen return inlet is formed in one side of the gas-water separator shell, a water outlet is formed in the bottom of the gas-water separator shell, a hydrogen return outlet is formed in the top of the gas-water separator shell, and a labyrinth structure is arranged in the gas-water separator shell and used for separating water in the hydrogen-containing mixed gas;
the high-pressure ejector comprises an ejector shell, a hydrogen circulating pump, a hydrogen return outlet, a high-pressure nozzle, a low-pressure area, a mixing section and a diffusion section, wherein the high-pressure nozzle is arranged on one side in the ejector shell, a hydrogen source inlet is formed in the front side of the high-pressure nozzle, the low-pressure area is arranged on the periphery of the high-pressure nozzle, the upper part of the ejector shell is provided with an air inlet and an air outlet which are connected with the hydrogen circulating pump, the air inlet is communicated with the hydrogen return outlet, the low-pressure area is communicated with the air outlet, the high-pressure area is arranged on the rear side of the high-pressure nozzle, and the high-pressure area comprises a suction section, a mixing section and a diffusion section;
the top of the buffer cavity shell is provided with a hydrogen inlet, one side of the buffer cavity shell is provided with a proportional valve mounting hole, and the proportional valve mounting hole is communicated with the hydrogen source inlet.
The labyrinth structure includes:
the water baffle is arranged in the gas-water separator shell below the hydrogen return inlet, and is used for preventing water stored in the bottom of the gas-water separator shell from upwards flowing out during oscillation, and a water falling hole is formed in the water baffle;
the primary water distribution plate is obliquely arranged in the gas-water separator shell on the side opposite to the hydrogen return inlet, one side of the primary water distribution plate close to the hydrogen return inlet is arranged at an interval with the gas-water separator shell, one side of the primary water distribution plate far away from the hydrogen return inlet is fixedly connected with the gas-water separator shell and is provided with a first notch, and one side of the primary water distribution plate close to the hydrogen return inlet is higher than one side of the primary water distribution plate far away from the hydrogen return inlet;
the second grade divides the water board, the slope of second grade divides the water board to install in the deareator casing of one-level branch water board top, the second grade divides the water board to keep away from back hydrogen entry one side and deareator casing between the interval setting, the second grade divides the water board to be close to back hydrogen entry one side and links firmly and be equipped with the second opening with the deareator casing, the second grade divides the water board to keep away from back hydrogen entry one side and is higher than the second grade divides the water board to be close to back hydrogen entry one side.
The water baffle comprises an arc-shaped plate with a high middle part and low two ends, and the water falling holes are formed in two sides of the arc-shaped plate.
The inside of the gas-water separator shell is a triangular cavity.
The gas-water separator shell, the water baffle, the primary water diversion plate and the secondary water diversion plate are integrally cast and molded.
The gas-water separator shell, the ejector shell and the buffer cavity shell are integrally cast and formed.
And an air-water separator shell close to the hydrogen return outlet is provided with an air outlet detection pressure gauge mounting hole.
By adopting the scheme, the utility model has the following advantages:
the gas-water separator shell, the ejector shell and the buffer cavity shell are integrated into a whole and used for mounting the hydrogen supply component of the hydrogen path, so that the size is small, the occupied space is small, the gas-water separator can be mounted and used in some areas with small space, a connecting pipeline between the hydrogen supply components of the hydrogen path is omitted, the gas transmission distance is short, the energy loss in the transmission process is reduced, the supercharging efficiency is improved, the mounting efficiency is high, and the icing and blocking caused by water accumulation in the pipeline when the temperature is too low are avoided;
by arranging the primary water diversion plate and the secondary water diversion plate in the gas-water separator shell, after hydrogen-containing mixed gas enters the gas-water separator from the hydrogen return inlet, one part of the hydrogen-containing mixed gas is blocked by the primary water diversion plate and then is conveyed backwards from the first opening, the other part of the hydrogen-containing mixed gas is blocked by the primary water diversion plate and returns backwards through the side, close to the hydrogen return inlet, of the primary water diversion plate and is conveyed backwards between the gas-water separator shell and the two parts of the hydrogen-containing mixed gas, the two parts of the hydrogen-containing mixed gas are conveyed backwards through the second opening and is conveyed backwards to the hydrogen return outlet through the side, far away from the hydrogen return inlet, of the secondary water diversion plate and between the gas-water separator shell, a part of the hydrogen-containing mixed gas enters from the hydrogen return inlet and then is directly conveyed backwards through the second opening to the hydrogen return outlet, water vapor in the hydrogen-containing mixed gas is condensed into liquid drops on the lower surfaces of the primary water diversion plate and the secondary water diversion plate and falls downwards under the action of gravity, the water vapor in the hydrogen-containing mixed gas is condensed into liquid drops on the upper surfaces of the primary water diversion plate and the second opening and the first opening and the second opening and falls downwards, finally, the water flows into the bottom of the shell of the gas-water separator through a water falling hole on the water baffle and is discharged from a water outlet. The setting of one-level water diversion plate and second grade water diversion plate, not only divide water effectually, can effectually separate hydrogen and water, avoid a large amount of water to get into hydrogen circulating pump and pile and produce the water logging, the resistance that receives when first opening and second opening set up in addition, can reduce the hydrogenous mist greatly and pass through has guaranteed the gas pressure of hydrogen return export, has reduced hydrogen circulating pump's power consumption.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
FIG. 3 is a schematic diagram of the gas-water separation structure of the present invention.
In the figure, 1, a gas-water separator shell, 2, an ejector shell, 3, a buffer cavity shell, 4, a hydrogen return inlet, 5, a water outlet, 6, a hydrogen return outlet, 7, a high-pressure nozzle, 8, a hydrogen source inlet, 9, a low-pressure area, 10, an air inlet, 11, an air outlet, 12, an intake section, 13, a mixing section, 14, a diffusion section, 15, a hydrogen inlet, 16, a proportional valve mounting hole, 17, a water baffle, 18, a water falling hole, 19, a primary water diversion plate, 20, a first opening, 21, a secondary water diversion plate, 22, a second opening, 23 and an air outlet detection pressure gauge mounting hole.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1 to 3, a hydrogen supply component integrated seat for a fuel cell hydrogen circuit comprises:
the integrated shell comprises a gas-water separator shell 1 at the lower part, an ejector shell 2 at the upper part and a buffer cavity shell 3;
a hydrogen return inlet 4 is formed in one side of the gas-water separator shell 1, a water outlet 5 is formed in the bottom of the gas-water separator shell 1, a hydrogen return outlet 6 is formed in the top of the gas-water separator shell, and a labyrinth structure is arranged in the gas-water separator shell and used for separating water in the hydrogen-containing mixed gas;
a high-pressure nozzle 7 is installed on one side inside the ejector shell 2, a hydrogen source inlet 8 is formed in the front side of the high-pressure nozzle 7, a low-pressure area 9 is arranged on the periphery of the high-pressure nozzle, an air inlet 10 and an air outlet 11 which are connected with a hydrogen circulating pump are formed in the upper portion of the ejector shell 2, the air inlet 10 is communicated with a hydrogen return outlet 6, the low-pressure area 9 is communicated with the air outlet 11, a high-pressure area is formed in the rear side of the high-pressure nozzle, and the high-pressure area comprises an intake section 12, a mixing section 13 and a diffusion section 14;
the top of the buffer cavity shell 3 is provided with a hydrogen inlet 15, one side of the buffer cavity shell is provided with a proportional valve mounting hole 16, and the proportional valve mounting hole 16 is communicated with the hydrogen source inlet 8.
The labyrinth structure includes:
the water baffle 17 is arranged in the gas-water separator shell below the hydrogen return inlet, is used for preventing water stored in the bottom of the gas-water separator shell from upwards ripping out during oscillation, and is provided with a water falling hole 18;
the primary water distribution plate 19 is obliquely arranged in the gas-water separator shell on the side opposite to the hydrogen return inlet, one side of the primary water distribution plate close to the hydrogen return inlet is arranged at intervals with the gas-water separator shell, one side of the primary water distribution plate far away from the hydrogen return inlet is fixedly connected with the gas-water separator shell and is provided with a first notch 20, and one side of the primary water distribution plate close to the hydrogen return inlet is higher than one side of the primary water distribution plate far away from the hydrogen return inlet;
the second grade divides the water board 21, the slope of second grade divides the water board to install in the deareator casing of one-level branch water board top, the second grade divides the water board to keep away from back hydrogen entry one side and deareator casing between the interval setting, the second grade divides the water board to be close to back hydrogen entry one side and deareator casing and links firmly and be equipped with second opening 22, the second grade divides the water board to keep away from back hydrogen entry one side and is higher than the second grade and divides the water board to be close to back hydrogen entry one side.
The water baffle comprises an arc-shaped plate with a high middle part and low two ends, and the water falling holes are formed in the two sides of the arc-shaped plate, so that water on the water baffle can conveniently enter the bottom of the gas-water separator shell from the water falling holes in the two sides.
The inside of the gas-water separator shell is a triangular cavity.
The gas-water separator shell, the water baffle, the primary water diversion plate and the secondary water diversion plate are integrally cast and molded.
The gas-water separator shell, the ejector shell and the buffer cavity shell are integrally cast and formed.
And an air-water separator shell close to the hydrogen return outlet is provided with an air outlet detection pressure gauge mounting hole 23.
The working principle is as follows:
after hydrogen-containing mixed gas discharged by a fuel cell stack enters the gas-water separator shell from the hydrogen return inlet 4, one part of the hydrogen-containing mixed gas is blocked by the primary water distribution plate 19 and then is conveyed backwards from the first notch 20, the other part of the hydrogen-containing mixed gas is blocked by the primary water distribution plate and returns backwards between one side, close to the hydrogen return inlet, of the primary water distribution plate and the gas-water separator shell, the two parts of the hydrogen-containing mixed gas are conveyed backwards between one side, far away from the hydrogen return inlet, of the secondary water distribution plate 21 and the gas-water separator shell to a hydrogen return outlet, a small amount of hydrogen-containing mixed gas enters from the hydrogen return inlet and then is directly conveyed backwards to the hydrogen return outlet through the second notch 22, and an air outlet detection pressure gauge installed in an air outlet detection pressure gauge installation hole 23 is used for detecting the gas pressure of the hydrogen return outlet 6 so as to ensure that the air outlet pressure meets the requirements. The water vapor in the hydrogen-containing mixed gas is condensed into liquid drops on the lower surfaces of the first-level water diversion plate and the second-level water diversion plate and drops downwards under the action of gravity, the water vapor in the hydrogen-containing mixed gas is condensed into liquid drops on the upper surfaces of the first-level water diversion plate and the second-level water diversion plate and flows to the first opening and the second opening to drop downwards, and finally the liquid drops are converged into the bottom of the gas-water separator shell through the water falling hole 18 on the water baffle 17 and are discharged from the water outlet 5. The setting of one-level water diversion plate and second grade water diversion plate, not only divide water effectually, can effectually separate hydrogen and water, avoid a large amount of water to get into hydrogen circulating pump and pile and produce the water logging, the resistance that receives when first opening and second opening set up in addition, can reduce the hydrogenous mist greatly and pass through has guaranteed the gas pressure of hydrogen return export, has reduced hydrogen circulating pump's power consumption. The gas discharged from the hydrogen return outlet 6 enters a pressurizing cavity of the hydrogen circulating pump through the gas inlet 10, is pressurized by the impeller rotating at high speed, is discharged into the low-pressure area 9 of the ejector shell 2 through the gas outlet 11, and is discharged backwards through the suction section 12, the mixing section 13 and the diffusion section 14 of the high-pressure area, so that the gas is pressurized. Meanwhile, hydrogen of the hydrogen source enters the buffer area shell 3 from the hydrogen inlet 15 for buffering, then enters the hydrogen source inlet 8 through a proportional valve in a proportional valve mounting hole 16, an air inlet detection pressure gauge can be mounted at the hydrogen source inlet 8 and used for detecting air inlet pressure, the hydrogen of the hydrogen source inlet 8 is pressurized through the high-pressure nozzle 7 and then is discharged backwards through the suction section, the mixing section and the diffusion section of the high-pressure area, and the hydrogen of the hydrogen source and dehydrated hydrogen-containing mixed gas are mixed and then are conveyed backwards to the fuel cell stack. Through integrating gas-water separator casing 1 and ejector casing 2 and buffer chamber casing 3 in an organic whole, be used for installing hydrogen way hydrogen supply part, small, occupation space is little, can install and use in the little region in some spaces, the connecting tube between the hydrogen way hydrogen supply part has been cancelled, gas transmission distance is short, the energy loss in the transmission course has been reduced, the boost efficiency has been promoted, and the installation effectiveness is high, the freezing jam condition that leads to because of ponding in the pipeline when having avoided the temperature to hang down.
The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (7)
1. A fuel cell hydrogen way hydrogen supply part integrated seat which characterized in that: the method comprises the following steps:
the integrated shell comprises a gas-water separator shell at the lower part, an ejector shell at the upper part and a buffer cavity shell;
a hydrogen return inlet is formed in one side of the gas-water separator shell, a water outlet is formed in the bottom of the gas-water separator shell, a hydrogen return outlet is formed in the top of the gas-water separator shell, and a labyrinth structure is arranged in the gas-water separator shell and used for separating water in the hydrogen-containing mixed gas;
the high-pressure ejector comprises an ejector shell, a hydrogen circulating pump, a hydrogen return outlet, a high-pressure nozzle, a low-pressure area, a mixing section and a diffusion section, wherein the high-pressure nozzle is arranged on one side in the ejector shell, a hydrogen source inlet is formed in the front side of the high-pressure nozzle, the low-pressure area is arranged on the periphery of the high-pressure nozzle, the upper part of the ejector shell is provided with an air inlet and an air outlet which are connected with the hydrogen circulating pump, the air inlet is communicated with the hydrogen return outlet, the low-pressure area is communicated with the air outlet, the high-pressure area is arranged on the rear side of the high-pressure nozzle, and the high-pressure area comprises a suction section, a mixing section and a diffusion section;
the top of the buffer cavity shell is provided with a hydrogen inlet, one side of the buffer cavity shell is provided with a proportional valve mounting hole, and the proportional valve mounting hole is communicated with the hydrogen source inlet.
2. A fuel cell hydrogen supply assembly according to claim 1, wherein: the labyrinth structure includes:
the water baffle is arranged in the gas-water separator shell below the hydrogen return inlet, and is used for preventing water stored in the bottom of the gas-water separator shell from upwards flowing out during oscillation, and a water falling hole is formed in the water baffle;
the primary water distribution plate is obliquely arranged in the gas-water separator shell on the side opposite to the hydrogen return inlet, one side of the primary water distribution plate close to the hydrogen return inlet is arranged at an interval with the gas-water separator shell, one side of the primary water distribution plate far away from the hydrogen return inlet is fixedly connected with the gas-water separator shell and is provided with a first notch, and one side of the primary water distribution plate close to the hydrogen return inlet is higher than one side of the primary water distribution plate far away from the hydrogen return inlet;
the second grade divides the water board, the slope of second grade divides the water board to install in the deareator casing of one-level branch water board top, the second grade divides the water board to keep away from back hydrogen entry one side and deareator casing between the interval setting, the second grade divides the water board to be close to back hydrogen entry one side and links firmly and be equipped with the second opening with the deareator casing, the second grade divides the water board to keep away from back hydrogen entry one side and is higher than the second grade divides the water board to be close to back hydrogen entry one side.
3. A fuel cell hydrogen supply component nest according to claim 2, characterized in that: the water baffle comprises an arc-shaped plate with a high middle part and low two ends, and the water falling holes are formed in two sides of the arc-shaped plate.
4. A fuel cell hydrogen supply component nest according to claim 2, characterized in that: the inside of the gas-water separator shell is a triangular cavity.
5. A fuel cell hydrogen supply component nest according to claim 2, characterized in that: the gas-water separator shell, the water baffle, the primary water diversion plate and the secondary water diversion plate are integrally cast and molded.
6. A fuel cell hydrogen supply assembly according to claim 1, wherein: the gas-water separator shell, the ejector shell and the buffer cavity shell are integrally cast and formed.
7. A fuel cell hydrogen supply assembly according to claim 1, wherein: and an air-water separator shell close to the hydrogen return outlet is provided with an air outlet detection pressure gauge mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168425.1U CN215869482U (en) | 2021-09-07 | 2021-09-07 | Hydrogen supply component integrated seat for hydrogen path of fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168425.1U CN215869482U (en) | 2021-09-07 | 2021-09-07 | Hydrogen supply component integrated seat for hydrogen path of fuel cell |
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| CN215869482U true CN215869482U (en) | 2022-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458640A (en) * | 2022-04-12 | 2022-05-10 | 北京亿华通科技股份有限公司 | Fuel cell injector with ice protection adjustable working nozzle |
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2021
- 2021-09-07 CN CN202122168425.1U patent/CN215869482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458640A (en) * | 2022-04-12 | 2022-05-10 | 北京亿华通科技股份有限公司 | Fuel cell injector with ice protection adjustable working nozzle |
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