CN204327506U - First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump - Google Patents
First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump Download PDFInfo
- Publication number
- CN204327506U CN204327506U CN201420725409.5U CN201420725409U CN204327506U CN 204327506 U CN204327506 U CN 204327506U CN 201420725409 U CN201420725409 U CN 201420725409U CN 204327506 U CN204327506 U CN 204327506U
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- CN
- China
- Prior art keywords
- impeller
- pump
- double
- stage impeller
- end supports
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- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump, this pump is primarily of the pump housing, pump shaft, impeller, upper cover composition; It is characterized in that the first stage impeller of described impeller adopts double-entry impeller 3, the section sub-circular structure of the transition runner 1 matched with double-entry impeller 3, the section of suction chamber 2 is approximate spiral structure.Because first stage impeller have employed double-entry impeller, the shape of transition runner and suction chamber have employed particular design, thus increase the flow of pump, improve the cavitation performance of first stage impeller entrance and suction chamber, balance the pressure of Pump Suction Nozzle, widened the application of this type pump, meet the use occasion of large discharge, also improve hydraulic efficiency simultaneously, extend working life.
Description
One, technical field
The utility model relates to mechanical engineering pump class technical field, specifically a kind of first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump.
Two, background technique
What current China axial subdivision two end supports multistage centrifugal pump first stage impeller adopted is single suction structure, and its flow is less, should not be used for the occasion of large discharge, if flow increases, cause pump cavitation degradation, product performance are poor, working life is short.
Three, summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump for large discharge occasion.
The technological scheme realizing the purpose of this utility model employing is: this multistage centrifugal pump is primarily of the pump housing, pump shaft, impeller, upper cover composition; It is characterized in that the first stage impeller of described impeller adopts double-entry impeller, the transition runner matched with double-entry impeller is sub-circular structure, and the section of suction chamber is approximate spiral structure.
The beneficial effects of the utility model are: because first stage impeller have employed double-entry impeller, the shape of transition runner and suction chamber have employed particular design, thus increase the flow of pump, improve the cavitation performance of first stage impeller entrance and suction chamber, balance the pressure of Pump Suction Nozzle, widen the application of this type pump, also improved hydraulic efficiency simultaneously, extend working life.
Four, accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump.
In figure: 1. transition runner, 2. suction chamber, 3. double-entry impeller.
Five, embodiment
In the accompanying drawings, the utility model first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump, this pump is primarily of the pump housing, pump shaft, impeller, upper cover composition; It is characterized in that the first stage impeller of described impeller adopts double-entry impeller 3, the section sub-circular structure of the transition runner 1 matched with double-entry impeller 3, the section of suction chamber 2 is approximate spiral structure.
Claims (1)
1. a first stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump, this pump is made up of the pump housing, pump shaft, impeller, upper cover; It is characterized in that: the first stage impeller of described impeller adopts double-entry impeller (3), the section sub-circular structure of the transition runner (1) matched with double-entry impeller (3), the section approximate spiral structure of suction chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725409.5U CN204327506U (en) | 2014-11-20 | 2014-11-20 | First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725409.5U CN204327506U (en) | 2014-11-20 | 2014-11-20 | First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327506U true CN204327506U (en) | 2015-05-13 |
Family
ID=53163873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725409.5U Expired - Fee Related CN204327506U (en) | 2014-11-20 | 2014-11-20 | First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035720A (en) * | 2017-04-07 | 2017-08-11 | 兰州兰泵有限公司 | The transition runner structure and its design method of a kind of centrifugal multistage pump multiple centrifugal pump |
| CN110454437A (en) * | 2019-06-24 | 2019-11-15 | 西安航天泵业有限公司 | A kind of multistage middle open formula centrifugal pump first-stage double-absorption transition runner |
-
2014
- 2014-11-20 CN CN201420725409.5U patent/CN204327506U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035720A (en) * | 2017-04-07 | 2017-08-11 | 兰州兰泵有限公司 | The transition runner structure and its design method of a kind of centrifugal multistage pump multiple centrifugal pump |
| CN110454437A (en) * | 2019-06-24 | 2019-11-15 | 西安航天泵业有限公司 | A kind of multistage middle open formula centrifugal pump first-stage double-absorption transition runner |
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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: 20150513 Termination date: 20171120 |