CN201206560Y - Modified multistage centrifugal pump - Google Patents
Modified multistage centrifugal pump Download PDFInfo
- Publication number
- CN201206560Y CN201206560Y CNU2008200865622U CN200820086562U CN201206560Y CN 201206560 Y CN201206560 Y CN 201206560Y CN U2008200865622 U CNU2008200865622 U CN U2008200865622U CN 200820086562 U CN200820086562 U CN 200820086562U CN 201206560 Y CN201206560 Y CN 201206560Y
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- China
- Prior art keywords
- pump shaft
- impeller
- right sides
- bearing body
- pump
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- Expired - Fee Related
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Abstract
The utility model provides an improved type multistage centrifugal pump, which comprises a pump shaft, a bearing body assembly mounted in the middle position of the pump shaft, at least two impellers respectively mounted on the left and the right sides of the pump shaft, a suction section, and a disgorge section. The suction section and the disgorge section are respectively arranged at the left and the right ends of the pump shaft. The impellers on the left and the right sides are symmetrically arranged by using the bearing body assembly as a center. The improved type centrifugal pump has the advantages of good stability, good reliability, and reduced cost.
Description
Technical field
The utility model relates to a kind of multistage centrifugal pump.
Background technique
Multistage centrifugal pump is a kind of very important universal machine product, the multistage centrifugal pump of conventional construction mainly contains two kinds, a kind of is two end supports, at the left and right sides while of wheel member layout design bearing body part, the overall length of pump integral body is longer, want the specialized designs axial thrust balancing devices, the operation stability of pump, reliability all are not very good, increase cost simultaneously.Another kind is a cantilever structure, single-sided arrangement design bearing body part at wheel member, be in state of suspension during impeller work, this stability of structure and reliability are bad especially, and also want the design axial force Equilibrator, because this structure stability is bad, the progression of strict control impeller, the total head of pump is restricted like this.
Summary of the invention
For the deficiency that poor stability, reliability are bad, cost is high that overcomes existing multistage centrifugal pump, the modified model multistage centrifugal pump that the utility model provides a kind of good stability, good reliability, reduces cost.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of modified model multistage centrifugal pump, comprise pump shaft, bearing body part, impeller, suction casing and Spit Section, described suction casing and Spit Section lay respectively at the two ends, the left and right sides of pump shaft, bearing body part is installed in neutral position at described pump shaft, described impeller has at least two, described impeller is installed in the left and right sides of pump shaft respectively, and the described impeller that is positioned at the left and right sides is the center symmetric arrangement with the bearing body part.
Further, described impeller has four, in the left and right sides of pump shaft two impellers is installed respectively.
Or: described impeller has six, in the left and right sides of pump shaft three impellers is installed respectively.
Again or: described impeller has eight, in the left and right sides of pump shaft four impellers is installed respectively.
Further, between described pump shaft and bearing body part, be provided with seal arrangement, outside described bearing body part, intermediate conductor be installed.
Technical conceive of the present utility model is: the impeller in the bearing support both sides, because impeller symmetric arrangement design, the suction port direction of impeller is opposite, the axial force that the both sides impeller produces also is opposite, size is identical, axial force automatic balancing like this, the impeller of each side is owing to be symmetric arrangement equally, axial force also is an autobalance.Impeller is in the design of bearing body part two ends symmetric arrangement, and radial load, thrust load are in full accord in theory, operation balance, the operational reliability and the operation stability of raising pump.
The beneficial effects of the utility model mainly show: good stability, good reliability, reduce cost.
Description of drawings
Fig. 1 is the structural representation of multistage centrifugal pump of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, a kind of modified model multistage centrifugal pump, comprise pump shaft 6, bearing body part 5, impeller, suction casing 2 and Spit Section 10, described suction casing 2 and Spit Section 10 lay respectively at the two ends, the left and right sides of pump shaft 6, bearing body part 5 is installed in neutral position at described pump shaft 6, described impeller has at least two, and described impeller is installed in the left and right sides of pump shaft 6 respectively, and the described impeller that is positioned at the left and right sides is the center symmetric arrangement with bearing body part 5.
Described impeller has four, in the left and right sides of pump shaft two impellers is installed respectively.Or: described impeller has six, in the left and right sides of pump shaft three impellers is installed respectively.Again or: described impeller has eight, in the left and right sides of pump shaft four impellers is installed respectively.
Between described pump shaft and bearing body part, be provided with seal arrangement 4, intermediate conductor 7 is installed outside described bearing body part.
In the present embodiment, the both sides of bearing body part 5 are respectively equipped with first order impeller 3, second level impeller 1, third level impeller 8 and fourth stage impeller 9.
Present embodiment is at the impeller of bearing body part 5 both sides, because impeller symmetric arrangement design, the suction port direction of impeller is opposite, the axial force that the both sides impeller produces also is opposite, size is identical, axial force automatic balancing like this, the impeller of each side is owing to be symmetric arrangement equally, axial force also is an autobalance.Impeller is in bearing body part 5 two ends symmetric arrangement designs, and radial load, thrust load are in full accord in theory, operation balance, the operational reliability and the operation stability of raising pump.
Claims (5)
1, a kind of modified model multistage centrifugal pump, comprise pump shaft, bearing body part, impeller, suction casing and Spit Section, described suction casing and Spit Section lay respectively at the two ends, the left and right sides of pump shaft, it is characterized in that: bearing body part is installed in the neutral position at described pump shaft, described impeller has at least two, described impeller is installed in the left and right sides of pump shaft respectively, and the described impeller that is positioned at the left and right sides is the center symmetric arrangement with the bearing body part.
2, modified model multistage centrifugal pump as claimed in claim 1 is characterized in that: described impeller has four, in the left and right sides of pump shaft two impellers is installed respectively.
3, modified model multistage centrifugal pump as claimed in claim 1 is characterized in that: described impeller has six, in the left and right sides of pump shaft three impellers is installed respectively.
4, modified model multistage centrifugal pump as claimed in claim 1 is characterized in that: described impeller has eight, in the left and right sides of pump shaft four impellers is installed respectively.
5, as the described modified model multistage centrifugal pump of one of claim 1-4, it is characterized in that: between described pump shaft and bearing body part, be provided with seal arrangement, outside described bearing body part, intermediate conductor be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200865622U CN201206560Y (en) | 2008-05-04 | 2008-05-04 | Modified multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200865622U CN201206560Y (en) | 2008-05-04 | 2008-05-04 | Modified multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206560Y true CN201206560Y (en) | 2009-03-11 |
Family
ID=40465623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200865622U Expired - Fee Related CN201206560Y (en) | 2008-05-04 | 2008-05-04 | Modified multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206560Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407289A (en) * | 2015-03-24 | 2017-11-28 | 株式会社荏原制作所 | Pump |
-
2008
- 2008-05-04 CN CNU2008200865622U patent/CN201206560Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407289A (en) * | 2015-03-24 | 2017-11-28 | 株式会社荏原制作所 | Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20120504 |