CN102758775A - Axial force self-balancing multistage centrifugal pump - Google Patents
Axial force self-balancing multistage centrifugal pump Download PDFInfo
- Publication number
- CN102758775A CN102758775A CN2012102508137A CN201210250813A CN102758775A CN 102758775 A CN102758775 A CN 102758775A CN 2012102508137 A CN2012102508137 A CN 2012102508137A CN 201210250813 A CN201210250813 A CN 201210250813A CN 102758775 A CN102758775 A CN 102758775A
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- transmission shaft
- pump
- balancing
- axial force
- multistage centrifugal
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Abstract
The invention discloses an axial force self-balancing multistage centrifugal pump and relates to the technical field of centrifugal pumps. The axial force self-balancing multistage centrifugal pump mainly comprises a pump body and a transmission shaft, wherein the pump body is installed on the transmission shaft through a bearing. The axial force self-balancing multistage centrifugal pump is characterized in that two groups of impellers with opposite directions and same size and quantity are symmetrically installed on the transmission shaft, packing and packing rings are respectively arranged between two ends of the pump body and the transmission shaft, and two ends of the pump body are respectively provided with a packing gland to produce axial pressure on the packing between the two ends of the pump body and the transmission shaft. In the axial force self-balancing multistage centrifugal pump, by symmetrically arranging the impellers at two ends of a pump shaft, the wear of a balancing disc and a balancing seat or rotor seizure and various other faults caused by the failure of a balancing device are thoroughly solved, and the service life of the pump is greatly prolonged. Moreover, the axial force self-balancing multistage centrifugal pump is convenient in maintenance, low in noise, stable in performance, better in sealing performance as the packing is adopted between the pump body and the transmission shaft for sealing, not easy to cause leakage and long in service life.
Description
Technical field
The present invention relates to the centrifugal pump technical field, be specially a kind of axial force self-balancing multiple stage centrifugal pump.
Background technique
Multistage centrifugal pump of the prior art is because axial force is uneven; The structure of general employing Balance disc or balancing drum realizes the longitudinal balance of multistage centrifugal pump; But Equilibrator is more easy to wear, and maintenance, maintenance inconvenience have not only consumed great amount of manpower, financial resources; Serious possibly cause production undesired, even causes equipment failure.Simultaneously, the sealability of existing pump is relatively poor, leaks comparatively serious.
Summary of the invention
The objective of the invention is to address the above problem, provide a kind of sealing effect better, axially the multistage centrifugal pump of self balancing.
The technological scheme that realizes above-mentioned purpose is: a kind of axial force self-balancing multiple stage centrifugal pump; Mainly comprise the pump housing and transmission shaft; The said pump housing is installed on the transmission shaft through bearing support, it is characterized in that: on transmission shaft, be symmetrically installed with two groups of impellers in the opposite direction, that size is identical with quantity, between pump housing two ends and transmission shaft, be respectively equipped with filler and packing ring; Two ends at the pump housing are respectively equipped with Gland, and the filler between pump housing two ends and the transmission shaft is produced axial pressure.
The present invention is through the symmetric arrangement impeller at the pump shaft two ends; Cancelled the axial force balance mechanism of multistage centrifugal pump; Because no Equilibrator does not only have the disc friction of Balance disc but also do not have the equilibrium reflux loss, so the efficient of pump is higher; Solve simultaneously thoroughly because of the lost efficacy wearing and tearing that caused Balance disc and balance seat or rotor of Equilibrator and various faults such as kill, prolonged the working life of pump greatly.And maintaining is convenient, little, the stable performance of noise.
Between the pump housing and transmission shaft, adopt packing seal, sealability is better, is not easy to cause to leak and long service life.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1; The present invention mainly comprises the pump housing 1 and transmission shaft 2; The said pump housing 1 is installed on the transmission shaft 2 through bearing support 3, on transmission shaft 2, is symmetrically installed with in the opposite direction, size is identical with quantity two groups of impellers 4 and 5, between the two ends of the pump housing 1 and transmission shaft 2, is provided with filler 6 and packing ring 7; Be provided with Gland 8 at the two ends of the pump housing 1, the filler between the pump housing 1 two ends and the transmission shaft 26 is produced axial pressure.
Claims (1)
1. axial force self-balancing multiple stage centrifugal pump; Mainly comprise the pump housing and transmission shaft; The said pump housing is installed on the transmission shaft through bearing support, it is characterized in that: on transmission shaft, be symmetrically installed with two groups of impellers in the opposite direction, that size is identical with quantity, between pump housing two ends and transmission shaft, be respectively equipped with filler and packing ring; Two ends at the pump housing are respectively equipped with Gland, and the filler between pump housing two ends and the transmission shaft is produced axial pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102508137A CN102758775A (en) | 2012-07-19 | 2012-07-19 | Axial force self-balancing multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102508137A CN102758775A (en) | 2012-07-19 | 2012-07-19 | Axial force self-balancing multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758775A true CN102758775A (en) | 2012-10-31 |
Family
ID=47053369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102508137A Pending CN102758775A (en) | 2012-07-19 | 2012-07-19 | Axial force self-balancing multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352875A (en) * | 2013-06-27 | 2013-10-16 | 上海第一水泵厂有限公司 | Horizontal type self-balancing multistage centrifugal pump with high cavitation resistance |
| CN104791253A (en) * | 2015-04-20 | 2015-07-22 | 杨海霞 | Novel multistage centrifugal pump |
-
2012
- 2012-07-19 CN CN2012102508137A patent/CN102758775A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352875A (en) * | 2013-06-27 | 2013-10-16 | 上海第一水泵厂有限公司 | Horizontal type self-balancing multistage centrifugal pump with high cavitation resistance |
| CN104791253A (en) * | 2015-04-20 | 2015-07-22 | 杨海霞 | Novel multistage centrifugal pump |
| CN104791253B (en) * | 2015-04-20 | 2017-04-12 | 江苏庆海石油机械有限公司 | Multistage centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |