CN211598998U - Hydrogen circulating pump for fuel cell - Google Patents
Hydrogen circulating pump for fuel cell Download PDFInfo
- Publication number
- CN211598998U CN211598998U CN202020092333.2U CN202020092333U CN211598998U CN 211598998 U CN211598998 U CN 211598998U CN 202020092333 U CN202020092333 U CN 202020092333U CN 211598998 U CN211598998 U CN 211598998U
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- supercharger
- fuel cell
- casing
- air inlet
- shell
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Abstract
The utility model provides a hydrogen circulating pump for fuel cell, includes motor, gear room and booster, compression chamber casing, air inlet end cover and the integrative casting shaping of exhaust chamber casing of booster are the booster casing, correspond the air inlet position on the booster casing and connect the intake pipe, correspond exhaust chamber position on the booster casing and connect the exhaust pipe, correspond exhaust chamber position bottom on the booster casing and be equipped with the apron. The strength is high: the compression cavity shell, the air inlet end cover and the exhaust cavity shell are integrally cast into the supercharger shell, so that the supercharger shell is not easy to deform when being collided by external force, and the supercharger shell can play a better protection effect on internal important parts; the leakproofness is good: the integrated structure does not generate gaps, thereby fundamentally avoiding hydrogen leakage and greatly improving the use safety; the assembly efficiency is high: the integral structure is free from assembly, the assembly process of workers is omitted, the production efficiency is improved, and the product quality is improved.
Description
The technical field is as follows:
the utility model relates to a hydrogen circulating pump for fuel cell.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse such hydrogen. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling.
The shell part of the supercharger of the existing hydrogen circulating pump is of a split assembly type structure and comprises a compression cavity shell, an air inlet end cover and an exhaust cavity shell which are connected through bolts, and the structural form has the following defects:
(1) the strength is low: when the split assembly type structure is collided by external force, the bolt joint is easy to deform, and the deformation of the air inlet end cover can drive the rotor and the rotating shaft in the split assembly type structure to displace, so that the rotor cannot rotate, even the motor is damaged in serious cases, and the split assembly type structure cannot play a better protection effect on important parts in the split assembly type structure;
(2) poor sealing performance: when the hydrogen circulating pump works, a rotor in the supercharger shell rotates at a high speed and inevitably generates vibration, and after a long time, bolts between the compression cavity shell and the air inlet end cover and bolts between the compression cavity shell and the exhaust cavity shell are loosened, so that gaps are generated at the joints, the air leakage condition is generated, and even danger is caused when hydrogen is seriously leaked;
(3) the assembly efficiency is low: the split assembly type structure has complex working procedures during installation, low installation efficiency, manual installation by workers and difficult quality control.
In summary, in the field of hydrogen circulation pumps, the above problems have become 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 not enough, provide a hydrogen circulating pump for fuel cell, solved in the past the problem that hydrogen circulating pump intensity is low, the leakproofness is poor, assembly efficiency is low, integral type shell structure intensity is high, the leakproofness is good, assembly efficiency improves greatly.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the utility model provides a hydrogen circulating pump for fuel cell, includes motor, gear room and booster, compression chamber casing, air inlet end cover and the integrative casting shaping of exhaust chamber casing of booster are the booster casing, correspond the air inlet position on the booster casing and connect the intake pipe, correspond exhaust chamber position on the booster casing and connect the exhaust pipe, correspond exhaust chamber position bottom on the booster casing and be equipped with the apron.
The exhaust cavity is arranged at the bottom of the supercharger shell.
The air inlet pipe is arranged at any position of the air inlet cavity on the supercharger shell.
The air inlet pipe is transversely arranged at the position of the air inlet cavity on the supercharger shell, which corresponds to the middle of the two rotors in the supercharger.
The exhaust pipe is transversely arranged at the position of the exhaust cavity on the supercharger shell corresponding to the middle of the two rotors in the supercharger.
And a rotating shaft in the supercharger is made of stainless steel.
The two rotors in the supercharger are roots rotors with torsion angles.
The torsion angle is 0-200 degrees.
The number of the blades of the two rotors in the supercharger is 2-8.
The bearing in the supercharger adopts a ceramic bearing or a stainless steel ceramic composite bearing.
The utility model adopts the above technical scheme, have following advantage:
(1) the strength is high: the compression cavity shell, the air inlet end cover and the exhaust cavity shell are integrally cast into the supercharger shell, so that the supercharger shell is not easy to deform when being collided by external force, and the supercharger shell can play a better protection effect on internal important parts;
(2) the leakproofness is good: the integrated structure does not generate gaps, thereby fundamentally avoiding hydrogen leakage and greatly improving the use safety;
(3) the assembly efficiency is high: the integral structure is free from assembly, the assembly process of workers is omitted, the production efficiency is improved, and the product quality is improved.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic diagram of the structure viewed from the right side of the present invention.
In the figure, the device comprises a motor 1, a motor 2, a gear chamber 3, a supercharger 4, a compression cavity shell 5, an air inlet end cover 6, an exhaust cavity shell 7, an air inlet pipe 8, an exhaust pipe 9 and a cover plate.
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. 1-2, a hydrogen circulating pump for fuel cell, includes motor 1, gear chamber 2 and booster 3, compression chamber casing 4, air inlet end cover 5 and the integrative casting shaping of exhaust chamber casing 6 of booster 3 are the booster casing, correspond air inlet position connection intake pipe 7 on the booster casing, correspond exhaust chamber position connection exhaust pipe 8 on the booster casing, correspond exhaust chamber position bottom on the booster casing and be equipped with apron 9.
The hydrogen-containing mixed gas discharged by the fuel cell contains some water vapor, a certain amount of water is accumulated in a rotor compression cavity of the hydrogen circulating pump after the hydrogen-containing mixed gas is used for a period of time, the water vapor can be condensed into ice in winter, so that the rotor is frozen, a motor spindle rotates when the motor is started, and the rotor is not rotated when the motor is frozen, so that the motor is locked, and even the motor is damaged when the motor is serious. The exhaust cavity is arranged at the bottom of the shell of the supercharger, water vapor formed in the compression cavity can be discharged in time, water is prevented from accumulating in the compression cavity, accumulated water generated in the supercharger is fundamentally eliminated, the phenomenon that water is stored in the compressor to freeze the rotor due to over-low temperature and icing is avoided, the phenomenon that the motor is locked up is avoided, and the motor is protected.
The air inlet pipe 7 is arranged at any position of an air inlet cavity on the supercharger shell, the air inlet pipe 7 is transversely arranged at a position, corresponding to the middle of two rotors in the supercharger, of the air inlet cavity on the supercharger shell, and the position can reduce the energy consumption loss of the motor to the maximum degree and avoid increasing useless work.
The exhaust pipe 8 is transversely arranged at the position of the exhaust cavity on the supercharger shell corresponding to the middle of the two rotors in the supercharger, so that the whole transverse size of the supercharger 3 can be reduced, and the motor loss can be reduced by 50-200 watts.
The rotating shaft in the supercharger is made of stainless steel, so that hydrogen embrittlement corrosion of water vapor and hydrogen can be reduced.
The two rotors in the supercharger are roots rotors with torsion angles, and the torsion angles are 0-200 degrees.
The number of the blades of the two rotors in the supercharger is 2-8.
The bearing in the supercharger adopts a ceramic bearing or a stainless steel ceramic composite bearing, so that hydrogen embrittlement corrosion of water vapor and hydrogen can be reduced.
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 (10)
1. The utility model provides a hydrogen circulating pump for fuel cell, includes motor, gear room and booster, its characterized in that: the utility model discloses a supercharger, including the compression chamber casing, the intake end cover, the exhaust chamber casing, the intake pipe is connected to the last air inlet position that corresponds of supercharger casing, corresponds exhaust chamber position connection exhaust pipe on the supercharger casing, corresponds exhaust chamber position bottom on the supercharger casing and is equipped with the apron.
2. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the exhaust cavity is arranged at the bottom of the supercharger shell.
3. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the air inlet pipe is arranged at any position of the air inlet cavity on the supercharger shell.
4. A hydrogen circulation pump for a fuel cell according to claim 3, characterized in that: the air inlet pipe is transversely arranged at the position of the air inlet cavity on the supercharger shell, which corresponds to the middle of the two rotors in the supercharger.
5. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the exhaust pipe is transversely arranged at the position of the exhaust cavity on the supercharger shell corresponding to the middle of the two rotors in the supercharger.
6. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: and a rotating shaft in the supercharger is made of stainless steel.
7. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the two rotors in the supercharger are roots rotors with torsion angles.
8. A hydrogen circulation pump for a fuel cell according to claim 7, characterized in that: the torsion angle is 0-200 degrees.
9. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the number of the blades of the two rotors in the supercharger is 2-8.
10. A hydrogen circulation pump for a fuel cell according to claim 1, characterized in that: the bearing in the supercharger adopts a ceramic bearing or a stainless steel ceramic composite bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092333.2U CN211598998U (en) | 2020-01-16 | 2020-01-16 | Hydrogen circulating pump for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092333.2U CN211598998U (en) | 2020-01-16 | 2020-01-16 | Hydrogen circulating pump for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211598998U true CN211598998U (en) | 2020-09-29 |
Family
ID=72577329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020092333.2U Active CN211598998U (en) | 2020-01-16 | 2020-01-16 | Hydrogen circulating pump for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211598998U (en) |
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2020
- 2020-01-16 CN CN202020092333.2U patent/CN211598998U/en active Active
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