CN201705677U - Semi-open impeller submerged slurry pump - Google Patents
Semi-open impeller submerged slurry pump Download PDFInfo
- Publication number
- CN201705677U CN201705677U CN2010202141444U CN201020214144U CN201705677U CN 201705677 U CN201705677 U CN 201705677U CN 2010202141444 U CN2010202141444 U CN 2010202141444U CN 201020214144 U CN201020214144 U CN 201020214144U CN 201705677 U CN201705677 U CN 201705677U
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- CN
- China
- Prior art keywords
- semi
- impeller
- pump
- open impeller
- pedestal
- 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 relates to a semi-open impeller submerged slurry pump used for slurry conveying. The semi-open impeller submerged slurry pump comprises a pump body and a semi-open impeller arranged in the pump body, wherein the upper end of the pump body is closed by an oil chamber screw cover of a mechanical sealing device; the semi-open impeller comprises a disc-shaped base and a plurality of main blades; the upper surface of the base is further provided with a plurality of auxiliary blades with the height lower than that of the main blades; the upper surface of the base is further provided with a sealing ring which is coaxial with the base, and the upper part of the pump body is provided with a matching hole adaptive to the outer diameter of the sealing ring; and the sealing ring is in clearance fit with the matching hole. The semi-open impeller submerged slurry pump has the advantages that 1. during the running process, a part of upward axial force can be offset by the auxiliary blades arranged at the back of the impeller so as to reduce vibration as well as the pressure of the medium on a rear sealing opening; and 2. by the sealing ring structure arranged at the back of the impeller, not only the running stability of the pump can be guaranteed, but also the impact of the medium pressure on the closed oil chamber can be isolated, and the service life of the mechanical seal can be prolonged.
Description
Technical field
The utility model relates to and is used for the half-opened impeller slag slurry pump under liquid that the slag slurry is carried.
Background technique
The slag slurry pump under liquid of common employing half-opened impeller generally includes the pump housing and is installed in the interior half-opened impeller of the pump housing, pump housing upper end is by grease chamber's gland sealing of mechanical seal device, and half-opened impeller is made up of a discoid pedestal and a plurality of blades that are arranged on the pedestal lower surface.In its working procedure, blade and material interaction can make impeller produce bigger axial force that makes progress and vibration, and mechanical seal is produced bigger upward pressure, thereby have reduced the working life and the sealing effect of mechanism's sealing.
Summary of the invention
Technical problem to be solved in the utility model is, the half-opened impeller slag slurry pump under liquid of a kind of axially loaded that reduces impeller and vibration, raising sealing effect is provided.
Half-opened impeller slag slurry pump under liquid of the present utility model includes the pump housing and is installed in the interior half-opened impeller of the pump housing, pump housing upper end is by grease chamber's gland sealing of mechanical seal device, and half-opened impeller comprises a discoid pedestal and a plurality of primary blades that are arranged on the pedestal lower surface; Also be provided with the back blades that a plurality of height are lower than primary blades on the upper surface of described pedestal; The upper surface of described pedestal also is provided with a seal ring coaxial with pedestal, and pump housing top is provided with one section matching hole that adapts with the seal ring external diameter, seal ring and matching hole Spielpassung simultaneously.
The utility model has the advantages that: 1, in running, the back blades that the impeller back is provided with can be offset the axial force that a part makes progress, and reduces vibration, also reduces the pressure of medium to the back sealed mouth simultaneously; 2, the impeller back is provided with seal ring structure, both guaranteed in the pump operation steadily, can cut off the impact of pressure medium again, the working life of prolonged mechanical sealing to the sealing grease chamber.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in the figure, this half-opened impeller slag slurry pump under liquid includes the pump housing 1 and is installed in the interior half-opened impeller 2 of the pump housing, pump housing upper end is by grease chamber's gland 3 sealings of mechanical seal device, and half-opened impeller 2 comprises a discoid pedestal 21 and a plurality of primary blades 22 that are arranged on the pedestal lower surface; Also be provided with the back blades 23 that a plurality of height are lower than primary blades on the upper surface of pedestal; The upper surface of pedestal also is provided with a seal ring 24 coaxial with pedestal, and the pump housing 1 top is provided with one section matching hole 11 that adapts with seal ring 24 external diameters, seal ring and matching hole Spielpassung simultaneously.
Claims (2)
1. half-opened impeller slag slurry pump under liquid, include the pump housing (1) and be installed in the interior half-opened impeller (2) of the pump housing, pump housing upper end is by grease chamber's gland (3) sealing of mechanical seal device, half-opened impeller comprises a discoid pedestal (21) and is arranged on a plurality of primary blades (22) on the pedestal lower surface, it is characterized in that: also be provided with the back blades (23) that a plurality of height are lower than primary blades on the upper surface of described pedestal (21).
2. half-opened impeller slag slurry pump under liquid according to claim 1, it is characterized in that: the upper surface of pedestal is provided with a seal ring coaxial with pedestal (24), the pump housing (1) top is provided with one section matching hole that adapts with the seal ring external diameter (11), seal ring and matching hole Spielpassung simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202141444U CN201705677U (en) | 2010-03-05 | 2010-05-24 | Semi-open impeller submerged slurry pump |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020123635 | 2010-03-05 | ||
| CN201020123635.8 | 2010-03-05 | ||
| CN2010202141444U CN201705677U (en) | 2010-03-05 | 2010-05-24 | Semi-open impeller submerged slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705677U true CN201705677U (en) | 2011-01-12 |
Family
ID=43442833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202141444U Expired - Fee Related CN201705677U (en) | 2010-03-05 | 2010-05-24 | Semi-open impeller submerged slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705677U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661282A (en) * | 2012-04-16 | 2012-09-12 | 杭州萧山美特轻工机械有限公司 | Open type spiral paper pulp pump |
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| CN109555706A (en) * | 2018-12-07 | 2019-04-02 | 合肥英腾嘉科技发展有限责任公司 | A kind of mixed-flow hydraulic submersible pump |
-
2010
- 2010-05-24 CN CN2010202141444U patent/CN201705677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661282A (en) * | 2012-04-16 | 2012-09-12 | 杭州萧山美特轻工机械有限公司 | Open type spiral paper pulp pump |
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| CN109555706A (en) * | 2018-12-07 | 2019-04-02 | 合肥英腾嘉科技发展有限责任公司 | A kind of mixed-flow hydraulic submersible 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 |
Granted publication date: 20110112 Termination date: 20180524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |