CN2546654Y - Multi-stage high-lift small flow pump - Google Patents
Multi-stage high-lift small flow pump Download PDFInfo
- Publication number
- CN2546654Y CN2546654Y CN 02211199 CN02211199U CN2546654Y CN 2546654 Y CN2546654 Y CN 2546654Y CN 02211199 CN02211199 CN 02211199 CN 02211199 U CN02211199 U CN 02211199U CN 2546654 Y CN2546654 Y CN 2546654Y
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- CN
- China
- Prior art keywords
- pump
- impeller
- lift
- low
- utility
- 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 - Lifetime
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Abstract
The utility model discloses a pump; in particular to a low-flow pump which is multistage and high-lift. The utility model which comprises a support shell 1, a pump shaft 2 supported inside the support shell 1 and a impeller 5 arranged on the front end of the pump shaft 2 is characterized in that at least an impeller 8 on the rear of the impeller 5 is arranged on the pump shaft 2. The utility model which has the advantages of high pressure on the air discharge port of the pump, high lift and low flow is greatly applicable to the low-flow and high-lift situations. The minimum flow is 0.5m#+ (3)/h and the maximum lift is 200 m. The cavitation surplus of the pump is very low. The utility model has a wide application range.
Description
Technical field:
The utility model relates to a kind of pump, particularly a kind of multistage high-lift low-capacity pump.
Background technique:
Pump is widely used in carrying each class I liquid I, its structure of existing pump is: a support housing is arranged, be supported with pump shaft in it, the front end of pump shaft is equipped with impeller, and impeller is positioned at pump case, and inlet and row's mouth are arranged on the shell, when pump shaft is driven rotation, impeller rotates thereupon, sucks working medium from inlet, discharges from row's mouth again.Because single impeller work is difficult to produce bigger pressure at Pai Kouchu, the pump of therefore manufacturing high-lift small flow is relatively more difficult.
Summary of the invention:
The purpose of this utility model provides a kind of pump of high-lift small flow, to overcome the deficiencies in the prior art.
Technical solution of the present utility model is: a kind of multistage high-lift low-capacity pump, it comprises support housing 1, be supported with pump shaft 2 in support housing 1, the front end of pump shaft 2 is equipped with impeller 5, it is characterized in that: the rear portion that is positioned at described impeller 5 on the pump shaft 2 also is provided with at least one impeller 8.
Described each impeller back is provided with a stator 7.
Described every group of impeller and stator just are arranged in piece housing, and middle one by one piece housing links to each other and two ends are fixed with preceding piece housing 9 and back piece housing 10 respectively, and back piece housing 10 and support housing 1 join.
The utility model compared with prior art, the row's mouth pressure with pump is big, lift height, the advantage that flow is little very are fit to the occasion of low-flow high-lift.Minimum discharge can reach 0.5m3/h, and lift reaches as high as 200m, and NPSH is low especially, has wide range of applications.
Description of drawings:
Fig. 1 is the structural representation of embodiment of the present utility model.
Embodiment:
As shown in the figure: 1 is support housing, with roller bearings pump shaft 2 is arranged in support housing 1.Support housing 1 is connected with back piece housing 10, five middle piece housings 6 and preceding piece housings 9 in turn, and is fastening with bolt 11, and each section surface of contact can add the sealing gasket sealing.The front portion of pump shaft 2 is suspended wall and impeller 5 is housed, and there is a stator 7 back of impeller 5, and for key connecting and just be arranged in piece housing 6 inboards, this device is established five groups of impellers (referring to accompanying drawing) altogether between impeller 5, stator 7 and the pump shaft 2.Be provided with inlet 4 at the front end of preceding piece housing 9, back piece housing 10 rows of being provided with mouth 3.During work, liquid enters from the inlet 4 of pump, through the pressurization of first order impeller, enters the next stage impeller through stator again, and one-level one-level pressurization is like this discharged from row's mouth 3 of pump at last, reaches the purpose of high-lift small flow.
Claims (3)
1, a kind of multistage high-lift low-capacity pump, it comprises support housing (1), be supported with pump shaft (2) in support housing (1), the front end of pump shaft (2) is equipped with impeller (5), it is characterized in that: the rear portion that is positioned at described impeller (5) on the pump shaft (2) also is provided with at least one impeller (8).
2, multistage high-lift low-capacity pump according to claim 1 is characterized in that: described each impeller back is provided with a stator (7).
3, multistage high-lift low-capacity pump according to claim 1 and 2, it is characterized in that: described every group of impeller and stator just are arranged in piece housing, middle one by one piece housing links to each other and two ends are fixed with preceding piece housing (9) and back piece housing (10) respectively, and back piece housing (10) joins with support housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211199 CN2546654Y (en) | 2002-04-11 | 2002-04-11 | Multi-stage high-lift small flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211199 CN2546654Y (en) | 2002-04-11 | 2002-04-11 | Multi-stage high-lift small flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546654Y true CN2546654Y (en) | 2003-04-23 |
Family
ID=33691162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211199 Expired - Lifetime CN2546654Y (en) | 2002-04-11 | 2002-04-11 | Multi-stage high-lift small flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546654Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504219A (en) * | 2015-01-09 | 2015-04-08 | 江苏大学 | CFD-based prediction method of centrifugal pump cavitation performance |
-
2002
- 2002-04-11 CN CN 02211199 patent/CN2546654Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504219A (en) * | 2015-01-09 | 2015-04-08 | 江苏大学 | CFD-based prediction method of centrifugal pump cavitation performance |
| CN104504219B (en) * | 2015-01-09 | 2017-08-04 | 江苏大学 | A kind of Forecasting Methodology of the centrifugal pump cavitation performance based on CFD |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DALIAN HERMETIC PUMP CO., LTD. Free format text: FORMER NAME OR ADDRESS: DALIAN HAIMI DIKE SEALED PUMP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Dalian Hermetic Pumps Co.,Ltd. Patentee before: Haimitike Seal Pump Co., Ltd., Dalian |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120411 Granted publication date: 20030423 |