CN201865963U - Novel sealing structure of centrifugal pump - Google Patents
Novel sealing structure of centrifugal pump Download PDFInfo
- Publication number
- CN201865963U CN201865963U CN2010202532039U CN201020253203U CN201865963U CN 201865963 U CN201865963 U CN 201865963U CN 2010202532039 U CN2010202532039 U CN 2010202532039U CN 201020253203 U CN201020253203 U CN 201020253203U CN 201865963 U CN201865963 U CN 201865963U
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- sealing
- centrifugal
- impeller
- pump
- centrifugal pump
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of the design and manufacturing of a centrifugal pump, in particular to a novel sealing structure of the centrifugal pump. The novel sealing structure is characterized in that: an auxiliary impeller blade (1) at lower height is added on the back of an impeller (3); the impeller (3) and a pump cover (4) are spaced with a distance; a static ring (5) is arranged in the middle of the pump cover (4); a moving ring (6) is controlled under the driving of a spring (8) and a centrifugal ball (7); and a spring base (9) adopts a cup-shaped structure and serves as a machine base of a centrifugal lever mechanism at the same time. The novel sealing structure of the centrifugal pump has the advantages that: the dynamic self-balancing sealing and the static mechanical sealing are realized, so that the sealing is reliable and the high-speed dynamic wear is avoided at the same time, the service life of the sealing is greatly prolonged, the reliability is high and the sealing performance is good. The service life of the sealing of a pump shaft is over ten times longer than that of a common centrifugal pump.
Description
Technical field
The utility model relates to the novel sealing structure in characteristic of centrifugal pump design and manufacturing technology field, particularly a kind of centrifugal pump.
Background technique
There is the sealing problem of impeller shaft in centrifugal pump, and sealing means commonly used has mechanical seal and packing seal, and mechanical seal cost height, installation requirement height and accident-free duration are limited; Though low, the easy access of packing seal cost is easy to leak once more.The canned motorpump of magnetic drives can thoroughly solve on the principle and leak, but has the difficulty that cost height and present stage also have high-power transmission to realize.
Summary of the invention
The utility model is broken through traditional thinking at the deficiencies in the prior art, increases highly lower impeller back blades at the impeller back side, when centrifugal pump is worked, impeller high speed rotating, the impeller back side can form bad counterpressure of high speed centrifugation water, thereby avoid pump when running pump shaft to leak.This moment, the centrifugal globe high speed rotating produced centrifugal force, and centrifugal force makes the rotating ring pressure spring by leverage, and dynamic and static ring is is separately worn and torn when avoiding high speed operation; When centrifugal pump quit work, centrifugal force disappeared, and spring drives rotating ring and compresses stationary ring, realized shutting down sealing.
The utility model is achieved in that it is made up of impeller back blades (1), lock nut (2), impeller (3), pump cover (4), stationary ring (5), rotating ring (6), centrifugal globe (7), spring (8) and spring seat (9).Increase highly lower impeller back blades (1) at impeller (3) back side, impeller (3) keeps the gap with pump cover (4), stationary ring (5) is installed in pump cover (4) neutral position, rotating ring (6) is subjected to spring (8) and centrifugal globe (7) drive controlling, spring seat (9) is a cup-like structure, also is centrifugal leverage support simultaneously.When centrifugal pump is worked, impeller (3) high speed rotating, the impeller back side can form high speed centrifugation water ring counterpressure, thereby avoids pump when running pump shaft to leak.This moment centrifugal globe (7) high speed rotating, produce centrifugal force, centrifugal force makes rotating ring (6) pressure spring (8) by leverage, makes dynamic and static ring separately, avoids wearing and tearing; When centrifugal pump quit work, centrifugal force disappeared, and spring (8) drives rotating ring (6) and compresses stationary ring (5) realization shutdown sealing.
The beneficial effects of the utility model are: realized dynamic self balancing sealing, the static mechanical sealing makes reliable sealing avoid at a high speed dynamically wearing and tearing simultaneously, and sealing prolongs reliability height, good seal performance working life greatly.Shaft seal of the present utility model working life is more than ten times of general centrifugal pump.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the novel sealing structure schematic representation of a kind of centrifugal pump of the utility model
1, impeller back blades 2, lock nut 3, impeller 4, pump cover 5, stationary ring 6, rotating ring
7, centrifugal globe 8, spring 9, spring seat
Embodiment
Embodiment:
The utility model is made up of impeller back blades (1), lock nut (2), impeller (3), pump cover (4), stationary ring (5), rotating ring (6), centrifugal globe (7), spring (8) and spring seat (9).Increase highly lower impeller back blades (1) at impeller (3) back side, impeller (3) keeps the gap with pump cover (4), stationary ring (5) is installed in pump cover (4) neutral position, rotating ring (6) is subjected to spring (8) and centrifugal globe (7) drive controlling, spring seat (9) is a cup-like structure, also is centrifugal leverage support simultaneously.When centrifugal pump is worked, impeller (3) high speed rotating, the impeller back side can form high speed centrifugation water ring counterpressure and need not seal, thereby avoids pump when running pump shaft to leak.This moment centrifugal globe (7) high speed rotating, produce centrifugal force, centrifugal force makes rotating ring (6) pressure spring (8) by leverage, makes dynamic and static ring separately, avoids wearing and tearing; When centrifugal pump quit work, centrifugal force disappeared, and spring (8) drives rotating ring (6) and compresses stationary ring (5) realization shutdown sealing.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, and any scheme after simple change of the present utility model is improved all belongs to protection domain of the present utility model.
Claims (1)
1. the novel sealing structure of a centrifugal pump, comprise: impeller back blades (1), lock nut (2), impeller (3), pump cover (4), stationary ring (5), rotating ring (6), centrifugal globe (7), spring (8), spring seat (9), it is characterized in that: increase highly lower impeller back blades (1) at impeller (3) back side, impeller (3) keeps the gap with pump cover (4), stationary ring (5) is installed in pump cover (4) neutral position, rotating ring (6) is subjected to spring (8) and centrifugal globe (7) drive controlling, spring seat (9) is a cup-like structure, also is centrifugal leverage support simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532039U CN201865963U (en) | 2010-07-07 | 2010-07-07 | Novel sealing structure of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532039U CN201865963U (en) | 2010-07-07 | 2010-07-07 | Novel sealing structure of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865963U true CN201865963U (en) | 2011-06-15 |
Family
ID=44137119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202532039U Expired - Fee Related CN201865963U (en) | 2010-07-07 | 2010-07-07 | Novel sealing structure of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151051A (en) * | 2016-08-17 | 2016-11-23 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | A kind of energy-saving bascule of multi-stage centrifugal pump |
-
2010
- 2010-07-07 CN CN2010202532039U patent/CN201865963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151051A (en) * | 2016-08-17 | 2016-11-23 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | A kind of energy-saving bascule of multi-stage centrifugal pump |
| CN106151051B (en) * | 2016-08-17 | 2019-04-23 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | A kind of energy-saving balancing device of multi-stage centrifugal 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: 20110615 Termination date: 20140707 |
|
| EXPY | Termination of patent right or utility model |