CN203856761U - Mechanical seal sealing device of single-stage centrifugal pump - Google Patents
Mechanical seal sealing device of single-stage centrifugal pump Download PDFInfo
- Publication number
- CN203856761U CN203856761U CN201420308687.0U CN201420308687U CN203856761U CN 203856761 U CN203856761 U CN 203856761U CN 201420308687 U CN201420308687 U CN 201420308687U CN 203856761 U CN203856761 U CN 203856761U
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- Prior art keywords
- mechanical seal
- pump
- machine
- pump cover
- impeller
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of mechanical engineering pumps, particularly to a mechanical seal sealing device of a single-stage centrifugal pump. The mechanical seal sealing device comprises a pump body, a pump shaft, an impeller, a mechanical seal pump cover, a bearing body, a positioning sleeve and a mechanical seal. The mechanical seal sealing device is characterized in that a fixing hole is formed in the front end of the mechanical seal pump cover, a sealing hole is formed in the back end, and a mechanical seal cavity and a mechanical seal top groove are formed in the middle; the pump shaft is sleeved with the mechanical seal pump cover; the front end of the mechanical seal pump cover is connected with the impeller through a sealing ring in a sealed manner, and the back end is connected with the pump shaft; the positioning sleeve and the mechanical seal are arranged in the mechanical seal cavity of the mechanical seal pump cover; one end of the mechanical seal is connected with the impeller through the positioning sleeve in a sealed manner, and the other end is clamped in the mechanical seal top groove of the mechanical seal pump cover. Mechanical seal parts are reduced, so that the sealing reliability of the pump during operation is improved, and the overall weight and the production cost of the pump are reduced. With the adoption of the structure, the mechanical seal sealing device has the advantages of novel structure, convenience in mounting, few mounting part, high sealing performance and the like.
Description
Technical field
The utility model relates to mechanical engineering pump technical field, and specifically a kind of machine of single stage centrifugal pump is sealed seal apparatus.
Background technique
At present, existing single stage centrifugal pump is by the pump housing, pump shaft, impeller, machine seal apparatus and bearing support form, described machine seal apparatus comprises machine envelope pump cover, machine sealed cover, mechanical seal, setting sleeve and clamping bolt, pump shaft supports through bearing support, pump shaft front end is fixedly connected with impeller, impeller is located in the pump housing, bearing support is fixedly connected with the pump housing through machine envelope pump cover, in order to guarantee that impeller in the running, liquid in the pump housing can not leak in bearing support, conventionally between impeller and bearing support, be provided with machine sealing chamber body, and machine sealing chamber body is located in machine envelope pump cover center cavity conventionally, described machine envelope pump cover front end is provided with the closed hole being connected with impeller, middle part is provided with the through hole being connected with setting sleeve, rear portion is provided with machine sealing chamber, machine envelope pump cover periphery Circle-Array is shown the fixed hole being connected with bearing support, on the through hole at machine envelope pump cover center and the pump shaft in machine sealing chamber, be fixed with successively setting sleeve, mechanical seal and machine sealed cover, machine envelope pump cover front end is connected with impeller seals through seal ring, rear end is tightly connected through clamping bolt and machine envelope pump cover, its deficiency is: because machine envelope part is many, cannot guarantee the precision of each fitting surface, cause the sealability of machine sealing chamber body to reduce.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides the machine of a kind of novel structure, the single stage centrifugal pump that easy for installation, mounting parts is few, sealability is high to be sealed seal apparatus.
The utility model solves the technological scheme that its technical problem adopts:
A kind of machine of single stage centrifugal pump is sealed seal apparatus, comprise the pump housing, pump shaft, impeller, machine envelope pump cover, bearing support, setting sleeve and mechanical seal, it is characterized in that described machine envelope pump cover front end is provided with fixed hole, rear end is provided with closed hole, middle part is provided with machine sealing chamber and the machine groove that binds, described machine envelope pump cover is enclosed within on pump shaft, machine envelope pump cover front end is connected with impeller seals through seal ring, rear end is connected with pump shaft, in the machine sealing chamber of described machine envelope pump cover, be provided with setting sleeve and mechanical seal, mechanical seal one end is connected with impeller seals through setting sleeve, the machine that the other end is stuck in machine envelope pump cover binds in groove, described machine envelope pump cover sidewall is provided with hole, by minimizing machine envelope part, sealing reliability while increasing pump operation, and reduce the complete machine weight of pump and the cost of production of pump.
The utility model is owing to adopting said structure, has novel structure, easy for installation, mounting parts is few, sealability advantages of higher.
accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of machine envelope pump cover in the utility model.
Fig. 4 is the A-A sectional view of Fig. 3.
Reference character: pump shaft 1, impeller 2, machine envelope pump cover 3, bearing support 4, setting sleeve 5, mechanical seal 6.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
As shown in drawings, a kind of machine of single stage centrifugal pump is sealed seal apparatus, comprise the pump housing, pump shaft 1, impeller 2, machine envelope pump cover 3, bearing support 4, setting sleeve 5 and mechanical seal 6, the pump housing, pump shaft, 1 impeller 2, the linkage structure of machine envelope pump cover 3 and bearing support 4 is same as the prior art, this does not repeat, it is characterized in that described machine envelope pump cover 3 front ends are provided with fixed hole, rear end is provided with closed hole, middle part is provided with machine sealing chamber and the machine groove that binds, described machine envelope pump cover 3 is enclosed within on pump shaft 1, machine envelope pump cover 3 front ends are tightly connected through seal ring and impeller 2, rear end is connected with pump shaft 1, in the machine sealing chamber of described machine envelope pump cover 3, be provided with setting sleeve 5 and mechanical seal 6, mechanical seal 6 one end are tightly connected through setting sleeve 5 and impeller 2, the machine that the other end is stuck in machine envelope pump cover 3 binds in groove, described machine envelope pump cover 3 sidewalls are provided with hole, by minimizing machine envelope part, sealing reliability while increasing pump operation, and reduce the complete machine weight of pump and the cost of production of pump.
The utility model when mounted, only need seal pump cover 3 with machine and connect the pump housing and bearing support 4, and machine sealed cover and clamping bolt have been reduced in machine envelope pump cover 3 inside, the sealing reliability while greatly increasing pump operation, and reduce the complete machine weight of pump and the cost of production of pump.When pump turns round, stop seal chamber because fitting surface problem causes seepage, increase the reliability of pump operation.
The utility model is owing to adopting said structure, has novel structure, easy for installation, mounting parts is few, sealability advantages of higher.
Claims (1)
1. the machine of a single stage centrifugal pump is sealed seal apparatus, comprise the pump housing, pump shaft, impeller, machine envelope pump cover, bearing support, setting sleeve and mechanical seal, it is characterized in that described machine envelope pump cover front end is provided with fixed hole, rear end is provided with closed hole, middle part is provided with machine sealing chamber and the machine groove that binds, described machine envelope pump cover is enclosed within on pump shaft, machine envelope pump cover front end is connected with impeller seals through seal ring, rear end is connected with pump shaft, in the machine sealing chamber of described machine envelope pump cover, be provided with setting sleeve and mechanical seal, mechanical seal one end is connected with impeller seals through setting sleeve, the machine that the other end is stuck in machine envelope pump cover binds in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308687.0U CN203856761U (en) | 2014-06-11 | 2014-06-11 | Mechanical seal sealing device of single-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308687.0U CN203856761U (en) | 2014-06-11 | 2014-06-11 | Mechanical seal sealing device of single-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856761U true CN203856761U (en) | 2014-10-01 |
Family
ID=51606615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308687.0U Expired - Fee Related CN203856761U (en) | 2014-06-11 | 2014-06-11 | Mechanical seal sealing device of single-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical pump |
-
2014
- 2014-06-11 CN CN201420308687.0U patent/CN203856761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20160611 |