CN215673595U - Sealing element for hydrogen circulating pump - Google Patents
Sealing element for hydrogen circulating pump Download PDFInfo
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- CN215673595U CN215673595U CN202121334177.7U CN202121334177U CN215673595U CN 215673595 U CN215673595 U CN 215673595U CN 202121334177 U CN202121334177 U CN 202121334177U CN 215673595 U CN215673595 U CN 215673595U
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- hydrogen
- lip
- shell
- oil
- sealing lip
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Abstract
The utility model discloses a sealing element for a hydrogen circulating pump, which comprises an outer shell, an inner shell, a framework, an air side sealing lip and an oil side sealing lip, wherein the inner shell is arranged in the outer shell, the framework is arranged between the inner shell and the outer shell, the air side sealing lip is arranged between the inner shell and the framework, the oil side sealing lip is arranged between the outer shell and the framework, the lips of the air side sealing lip and the oil side sealing lip respectively extend out of the inner shell and the outer shell, the lips of the air side sealing lip and the oil side sealing lip simultaneously hold the rotary shaft cylindrical surface of the hydrogen circulating pump, and the lips of the air side sealing lip and the oil side sealing lip respectively face to the hydrogen side and the lubricating oil side of the hydrogen circulating pump. The utility model ensures that the hydrogen side and the lubricating oil side of the hydrogen circulating pump have excellent sealing performance, ensures that the provided hydrogen does not contain oil stains, and meets the use requirement of the hydrogen purity.
Description
Technical Field
The utility model belongs to the field of hydrogen circulating pumps, and particularly relates to a sealing element for a hydrogen circulating pump.
Background
The hydrogen circulating pump is used as a power part of a hydrogen circulating system, and hydrogen with sufficient purity needs to be provided under the condition of high sealing requirement. Particularly, in a hydrogen circulation pump provided with a gear transmission, lubricating oil is injected into a gear chamber, and a strict seal is required between a hydrogen side and a lubricating oil side to prevent hydrogen from leaking into the gear chamber and also to prevent the lubricating oil in the gear chamber from leaking into the hydrogen chamber.
The hydrogen gas tightness of the hydrogen circulating pump in the current market is not enough, and the provided hydrogen gas contains oil stains, so that the purity of the hydrogen gas cannot meet the use requirement.
Disclosure of Invention
The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the sealing piece for the hydrogen circulating pump is provided, the sealing performance between the hydrogen side and the lubricating oil side in the hydrogen circulating pump can be improved, the provided hydrogen does not contain oil stains, and the use requirement of the hydrogen purity is met.
The technical scheme is as follows: in order to achieve the above purpose, the present invention provides a sealing member for a hydrogen circulation pump, including an outer shell, an inner shell, a skeleton, an air side sealing lip and an oil side sealing lip, wherein the inner shell is disposed in the outer shell, the skeleton is disposed between the inner shell and the outer shell, the air side sealing lip is disposed between the inner shell and the skeleton, the oil side sealing lip is disposed between the outer shell and the skeleton, the lips of the air side sealing lip and the oil side sealing lip respectively extend out of the inner shell and the outer shell, the lips of the air side sealing lip and the oil side sealing lip simultaneously embrace a rotary shaft cylindrical surface of the hydrogen circulation pump, and the lips of the air side sealing lip and the oil side sealing lip respectively face a hydrogen side and a lubricating oil side of the hydrogen circulation pump.
Further, a secondary lip is arranged between the framework and the oil side sealing lip, and the lip edge of the secondary lip embraces the cylindrical surface of the rotating shaft of the hydrogen circulating pump and faces the hydrogen side of the hydrogen circulating pump.
Further, the framework is provided with an anti-thrust used for supporting the air side sealing lip.
Further, the shell is arranged in a sealing element mounting hole of the hydrogen circulating pump.
Further, a rubber sealing gasket is arranged between the shell and the oil side sealing lip, and the sealing performance is improved.
Furthermore, the air side sealing lip is provided with a concentric circular bulge for butting the inner shell, so that a layer of sealing structure is added between the air side sealing lip and the inner shell, and the air tightness between the air side sealing lip and the inner shell is improved.
Has the advantages that: compared with the prior art, the utility model forms a multi-layer composite sealing structure through the ingenious structural design among the outer shell, the inner shell, the framework, the auxiliary lip, the air side sealing lip and the oil side sealing lip, so that the hydrogen side and the lubricating oil side of the hydrogen circulating pump have excellent sealing performance, the provided hydrogen does not contain oil stains, and the use requirement of the hydrogen purity is met.
Drawings
Fig. 1 is a schematic structural view of a sealing member.
Detailed Description
The utility model is further elucidated with reference to the drawings and the embodiments.
As shown in fig. 1, the utility model provides a sealing member for a hydrogen circulation pump, which comprises an outer shell 1, an inner shell 2, a framework 4, a gas-side sealing lip 3 and an oil-side sealing lip 5, wherein the inner shell 2 is arranged in the outer shell 1, the framework 4 is arranged between the inner shell 2 and the outer shell 1, the gas-side sealing lip 3 is arranged between the inner shell 2 and the framework 4, the oil-side sealing lip 5 is arranged between the outer shell 1 and the framework 4, the lips of the gas-side sealing lip 3 and the oil-side sealing lip 5 respectively extend out of the inner shell 2 and the outer shell 1, an auxiliary lip mouth 6 is arranged between the framework 4 and the oil-side sealing lip 5, an anti-thrust 7 for supporting the gas-side sealing lip 3 is arranged on the framework 4, a rubber sealing gasket 8 is arranged between the outer shell 1 and the oil-side sealing lip 5, and a concentric circular bulge 9 for butting the inner shell 2 is arranged on the gas-side sealing lip 3.
In the present embodiment, the above-described sealing member is mounted and applied to a hydrogen circulation pump, as shown in fig. 1, the whole sealing member is mounted in a sealing member mounting hole 11 of the hydrogen circulation pump, the lips of the gas-side seal lip 3, the oil-side seal lip 5 and the sub-lip 6 simultaneously embrace a rotating cylindrical surface 10 of the hydrogen circulation pump, the lips of the gas-side seal lip 3 and the sub-lip 6 face the hydrogen side of the hydrogen circulation pump, and the lip of the oil-side seal lip 5 faces the lubricating oil side of the hydrogen circulation pump.
The hydrogen circulating pump provided with the sealing element has the advantages that the hydrogen side and the lubricating oil side of the hydrogen circulating pump form a multi-layer composite sealing structure, hydrogen provided by the hydrogen circulating pump does not contain any oil stain, and the hydrogen circulating pump has extremely high purity.
Claims (6)
1. The utility model provides a sealing member for hydrogen circulating pump, its characterized in that, includes shell, inner shell, skeleton, gas side seal lip and oil side seal lip, the inner shell sets up in the shell, the skeleton sets up between inner shell and shell, the gas side seal lip sets up between inner shell and skeleton, the oil side seal lip sets up between shell and skeleton, the lip limit of gas side seal lip and oil side seal lip extends inner shell and shell respectively, on the rotary shaft cylinder of hydrogen circulating pump was embraced simultaneously to the lip limit of gas side seal lip and oil side seal lip, the lip limit of gas side seal lip and oil side seal lip is towards the hydrogen side and the lubricating oil side of hydrogen circulating pump respectively.
2. The sealing member for a hydrogen circulation pump according to claim 1, wherein a secondary lip is disposed between the skeleton and the oil-side sealing lip, and the lip of the secondary lip embraces the cylindrical surface of the rotating shaft of the hydrogen circulation pump and faces the hydrogen side of the hydrogen circulation pump.
3. The seal member for a hydrogen circulation pump according to claim 1, wherein: and the framework is provided with an anti-thrust used for supporting the air side sealing lip.
4. The seal member for a hydrogen circulation pump according to claim 1, wherein: the shell is arranged in a sealing element mounting hole of the hydrogen circulating pump.
5. The seal member for a hydrogen circulation pump according to claim 1, wherein: and a rubber sealing gasket is arranged between the shell and the oil side sealing lip.
6. The seal member for a hydrogen circulation pump according to claim 1, wherein: the air side sealing lip is provided with a concentric circular bulge for butting the inner shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121334177.7U CN215673595U (en) | 2021-06-16 | 2021-06-16 | Sealing element for hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121334177.7U CN215673595U (en) | 2021-06-16 | 2021-06-16 | Sealing element for hydrogen circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673595U true CN215673595U (en) | 2022-01-28 |
Family
ID=79975350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121334177.7U Active CN215673595U (en) | 2021-06-16 | 2021-06-16 | Sealing element for hydrogen circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673595U (en) |
-
2021
- 2021-06-16 CN CN202121334177.7U patent/CN215673595U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |