CN205446157U - High -lift submersible sewage pump seal loop constructs - Google Patents
High -lift submersible sewage pump seal loop constructs Download PDFInfo
- Publication number
- CN205446157U CN205446157U CN201521124611.3U CN201521124611U CN205446157U CN 205446157 U CN205446157 U CN 205446157U CN 201521124611 U CN201521124611 U CN 201521124611U CN 205446157 U CN205446157 U CN 205446157U
- Authority
- CN
- China
- Prior art keywords
- ring body
- outer ring
- outside
- impeller
- inner face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a high -lift submersible sewage pump seal loop constructs, its characterized in that includes, the pump body, impeller and be in the pump body reaches sealing ring between the impeller, the sealing ring is become by outer ring body and inner ring body group, the outer loop annulus around in the outside of interior ring body, the outside of outer ring body with the pump body offsets, the inner face of outer ring body with the outside of interior ring body offsets, the inner face of interior ring body with it is gapped between the impeller, and, the material of outer ring body is the gray iron, the material of interior ring body is copper. The utility model discloses an advantage: rise under the little condition at the cost, reduced sealed clearance, improved the pump efficiency.
Description
Technical field
This utility model relates to a kind of high-lift diving dredge pump seal ring structure.
Background technology
High-lift diving dredge pump is more common in and is pumped the great occasion of the height of water, and such as dam infiltration, its water quality is good, free from admixture fiber.Its pump seal ring structure is shown in that Fig. 1, inner circle and impeller complete to seal.Can affect pump efficiency for gap between the two, for high-lift pump, impact is more so.Owing to water quality is essentially clear water, it is not necessary to considering further that impurity blocks gap, gap can be put little.Conventional hermetic ring material is gray iron material.
Summary of the invention
The purpose of this utility model is the problem solving to affect the efficiency of pump in prior art, it is provided that a kind of high-lift diving dredge pump seal ring structure.
A kind of high-lift diving dredge pump seal ring structure of this utility model design, include, the pump housing, impeller and be in the sealing ring between the described pump housing and described impeller, described sealing ring is made up of outer ring body and inner ring body, described outer ring body is surrounded on the outside of described inner ring body, the outside of described outer ring body offsets with the described pump housing, and the inner face of described outer ring body offsets with the outside of described inner ring body, offsets or have gap between the inner face of described inner ring body and described impeller；Also, the material of described outer ring body is gray iron, the material of described inner ring body is copper.
It is all the conical surface as the preferred version of a kind of high-lift diving dredge pump seal ring structure, the inner face of described outer ring body and the outside of described inner ring body.
Combine in a welding manner as the preferred version of a kind of high-lift diving dredge pump seal ring structure, the inner face of described outer ring body and the outside of described inner ring body.
Preferred version as a kind of high-lift diving dredge pump seal ring structure, the inner face of described outer ring body has the first groove, there is the second groove the outside of described inner ring body, described first groove constitutes screw accommodation space with described second groove, described screw accommodation space has junction of the edges of two sheets of paper screw, to connect described outer ring body and described inner ring body.
Compared with prior art, the utility model has the advantage of: in the case of cost increase is little, decreases seal clearance, improve pump efficiency.
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 sealing ring in this utility model.
Detailed description of the invention
In Fig. 2 and 3, a kind of high-lift diving dredge pump seal ring structure, include, the pump housing 1, impeller 2 and be in the sealing ring 3 between the described pump housing and described impeller, described sealing ring is made up of outer ring body 31 and inner ring body 32, and described outer ring body is surrounded on the outside of described inner ring body, and the outside of described outer ring body offsets with the described pump housing, the inner face of described outer ring body offsets with the outside of described inner ring body, has gap between the inner face of described inner ring body and described impeller；Also, the material of described outer ring body is gray iron, the material of described inner ring body is copper.
Main bright spot is to do little by sealing ring inner ring diameter, reduces seal clearance as far as possible.Sealing ring material being substituted is copper material, and due to the wear resistance of copper, even if impeller and sealing ring eccentric wear, both also will not locking.After eccentric wear, copper begins to wear out until not grinding, and impeller and sealing ring reach most suitable running clearance.Again on the basis of considering cost, copper sealing ring has made split, is made up of with copper sealing ring edge body gray iron sealing ring matrix.Finally in the case of cost increase is little, decrease seal clearance, improve pump efficiency.
Claims (4)
1. a high-lift diving dredge pump seal ring structure, it is characterized in that, include, the pump housing, impeller and be in the sealing ring between the described pump housing and described impeller, described sealing ring is made up of outer ring body and inner ring body, and described outer ring body is surrounded on the outside of described inner ring body, and the outside of described outer ring body offsets with the described pump housing, the inner face of described outer ring body offsets with the outside of described inner ring body, offsets or have gap between the inner face of described inner ring body and described impeller；Also, the material of described outer ring body is gray iron, the material of described inner ring body is copper.
A kind of high-lift diving dredge pump seal ring structure the most according to claim 1, it is characterised in that the inner face of described outer ring body and the outside of described inner ring body are all the conical surface.
A kind of high-lift diving dredge pump seal ring structure the most according to claim 1, it is characterised in that the inner face of described outer ring body and the outside of described inner ring body combine in a welding manner.
A kind of high-lift diving dredge pump seal ring structure the most as claimed in any of claims 1 to 3, it is characterized in that, the inner face of described outer ring body has the first groove, there is the second groove the outside of described inner ring body, described first groove constitutes screw accommodation space with described second groove, described screw accommodation space has junction of the edges of two sheets of paper screw, to connect described outer ring body and described inner ring body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124611.3U CN205446157U (en) | 2015-12-31 | 2015-12-31 | High -lift submersible sewage pump seal loop constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124611.3U CN205446157U (en) | 2015-12-31 | 2015-12-31 | High -lift submersible sewage pump seal loop constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446157U true CN205446157U (en) | 2016-08-10 |
Family
ID=56598122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521124611.3U Expired - Fee Related CN205446157U (en) | 2015-12-31 | 2015-12-31 | High -lift submersible sewage pump seal loop constructs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446157U (en) |
-
2015
- 2015-12-31 CN CN201521124611.3U patent/CN205446157U/en not_active Expired - Fee Related
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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: 20160810 Termination date: 20201231 |