CN203272150U - Novel shaft seal slurry pump - Google Patents
Novel shaft seal slurry pump Download PDFInfo
- Publication number
- CN203272150U CN203272150U CN 201320189825 CN201320189825U CN203272150U CN 203272150 U CN203272150 U CN 203272150U CN 201320189825 CN201320189825 CN 201320189825 CN 201320189825 U CN201320189825 U CN 201320189825U CN 203272150 U CN203272150 U CN 203272150U
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- CN
- China
- Prior art keywords
- impeller
- mechanical seal
- protective plate
- friction pair
- pump
- 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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Abstract
The utility model provides a novel shaft seal slurry pump which comprises a pump body and a mechanical seal device, a mechanical seal friction pair, a mechanical seal box body, a rear protective plate, an impeller, a front protective plate and a sheath, wherein the mechanical seal device, the mechanical seal friction pair, the mechanical seal box body, the rear protective plate, the impeller, the front protective plate and the sheath are arranged on the pump body. An open impeller is arranged at one end next to the mechanical seal friction pair of the pump body, the open impeller and the impeller are coaxial and opposite in direction, and the gap between the rear protective plate and a hub of the impeller is enlarged. After the open impeller is added, the pressure of the mechanical seal friction pair can be relieved, and ore slurry can be effectively prevented from damaging the friction pair. After the distance between the rear protective plate and the hub of the impeller is enlarged, high-concentration slurry particles which are silted due to stop of pumping in the mechanical seal box body are easy to discharge. According to the scheme, the problem that the mechanical seal device of the slurry pump is short in service life under severe working conditions is solved well.
Description
Technical field
The utility model relates to pump technology field, especially a kind of new-type shaft seal slag stock pump.
Background technique
At present, be equipped with the slag stock pump of mechanical seal when transfer ore pulp, mechanical seal working life, length was not common phenomenon.Under existing slag stock pump structure, high-lift in conveying especially, in the situation of high density slurry, in a single day the particle in slurry enters the friction vice division chief of mechanical seal, very easily causes its damage, causes slurry to be revealed.According to the slag stock pump use condition that is equipped with mechanical seal, it is that in slurry, solid particle causes damage to its friction pair that mechanical seal was lost efficacy: reason one, when carrying high-lift high-concentration ore slurry, because the pump internal pressure is large, the ore pulp particle of high-speed motion very easily weares and teares and enters friction pair; Reason two, in the slag stock pump pump housing, the gap is very little everywhere, and after termination of pumping, easily alluvial is in the vice division chief's difficulty discharge that rubs for slurry particles, and same easily engaging friction pair damage machine seals.In view of through the above, the invention provides a kind ofly under the bad working environments condition, improve the slag stock pump shaft seal solution in working life.
Summary of the invention
The purpose of this utility model is to provide a kind of new-type shaft seal slag stock pump of good seal performance.
The technical solution of the utility model is achieved in that
A kind of new-type shaft seal slag stock pump is provided, comprise mechanical seal, mechanical sealing friction pairs, machine joint sealing body, rear backplate, impeller, apron plate, sheath on the pump housing and the pump housing, it is characterized in that: an end of described next-door neighbour's mechanical sealing friction pairs is provided with a unshrouded impeller opposite with the impeller coaxial direction, and the gap at backplate and impeller hub place after enlarging.
The beneficial effects of the utility model are: after increasing unshrouded impeller, can alleviate the pressure at mechanical sealing friction pairs place, effectively stop the ore pulp particle to the damage of friction pair; Behind the gap at backplate after expansion and impeller hub place, the high density slurry particle due to the termination of pumping alluvial in machine joint sealing body also is easy to discharge.This programme well solved the mechanical seal of slag stock pump under bad working environments working life low problem.
Description of drawings
Accompanying drawing 1 is a kind of embodiment's of the present utility model sectional structure schematic diagram.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
See also accompanying drawing, it is a kind of new-type shaft seal slag stock pump shown in Fig. 1, comprise mechanical seal 1, mechanical sealing friction pairs 2, machine joint sealing body 4, rear backplate 5, impeller 6, apron plate 7, sheath 8 on the pump housing and the pump housing, one end of described next-door neighbour's mechanical sealing friction pairs 2 is provided with a unshrouded impeller 3 opposite with impeller 6 coaxial direction, and enlarges the gap of rear backplate 5 and impeller 6 wheel hub.
Although above shown detailed embodiment of the present utility model, those skilled in the art is under prerequisite of the present utility model, can carry out the part modifications and changes; The content of mentioning in description above and accompanying drawing is the illustration of property as an illustration only, is not limitation of the utility model, and has a kind of new-type shaft seal slag stock pump of above-mentioned technical characteristics, all falls into this patent protection domain.
Claims (1)
1. new-type shaft seal slag stock pump, comprise mechanical seal, mechanical sealing friction pairs, machine joint sealing body, rear backplate, impeller, apron plate, sheath on the pump housing and the pump housing, it is characterized in that: an end of described next-door neighbour's mechanical sealing friction pairs is provided with a unshrouded impeller opposite with the impeller coaxial direction, and the gap at backplate and impeller hub place after enlarging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189825 CN203272150U (en) | 2013-04-16 | 2013-04-16 | Novel shaft seal slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189825 CN203272150U (en) | 2013-04-16 | 2013-04-16 | Novel shaft seal slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272150U true CN203272150U (en) | 2013-11-06 |
Family
ID=49502577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189825 Expired - Fee Related CN203272150U (en) | 2013-04-16 | 2013-04-16 | Novel shaft seal slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272150U (en) |
-
2013
- 2013-04-16 CN CN 201320189825 patent/CN203272150U/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: 20131106 Termination date: 20200416 |