CN2903501Y - Horizontal multi step pump with axial force self balancing - Google Patents
Horizontal multi step pump with axial force self balancing Download PDFInfo
- Publication number
- CN2903501Y CN2903501Y CN 200520047524 CN200520047524U CN2903501Y CN 2903501 Y CN2903501 Y CN 2903501Y CN 200520047524 CN200520047524 CN 200520047524 CN 200520047524 U CN200520047524 U CN 200520047524U CN 2903501 Y CN2903501 Y CN 2903501Y
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- CN
- China
- Prior art keywords
- pump
- section
- pump shaft
- impeller
- 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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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a new horizontal-type multi-stage pump with pump shaft directive force self regulation comprising bearing components, water inlet section, impellers, a center-section, a pump shaft, guide vanes and water outlet section. The utility model is characterized in that the pump cavity is separated into front and back parts by the center-section of the spitting flange which is connected with the middle of the pump and communicating elbow pipe connected with the middle inhalation section. The impellers direction of the front part of pump shaft is opposite to that of the back part. The middle inhalation section is connected with the back-end of the pump cavity back part and the water outlet section is connected with the front-end of the back part of the pump cavity. The utility model has the advantages of improving the reliability, prolonging the life, reducing leakage loss and improving the efficiency one percent to three percent.
Description
Technical field
The utility model relates to a kind of horizontal type multi-stage pump, and particularly a kind of pump shaft is to force self-balanced novel horizontal multistage pump.
Background technique
Existing horizontal type multi-stage pump mainly is made up of bearing part, inlet segment, impeller, stage casing, stator, axle, water exit end, gimbal, balance return pipe, Balance disc, sealed letter body etc.Because multistage lift of pump height, the axial force that is produced is big, the axial force that needs gimbal, balance return pipe, Balance disc acting in conjunction to come the balance pump shaft.But gimbal and Balance disc are in contact with one another in the process of balancing axial thrust, and it is very fast to wear and tear, and the life-span is short, poor reliability; The balance return pipe stops up easily, causes gimbal and Balance disc to be interlocked, and damages whole rotor part; The balance return pipe a part of flow that need reflux has influenced the efficient of water pump.
Summary of the invention
The purpose of this utility model is that horizontal type multi-stage pump utilizes gimbal and Balance disc to come the existing the problems referred to above of balancing axial thrust in the solution prior art, provides a kind of pump shaft to force self-balanced novel horizontal multistage pump.The utility model designs a kind of pump shaft to force self-balanced novel horizontal multistage pump, comprise bearing part, inlet segment, impeller, stage casing, pump shaft, stator, Spit Section, it is characterized in that: be connected in the centre of pump and be with the flange stage casing that spues, be with the flange stage casing that spues to separate forward and backward two sections that pump chamber is, the direction of impeller is opposite on the pump shaft of the direction of impeller on the pump shaft of leading portion and back segment, be with the logical in succession bend pipe in the flange stage casing that spues, be communicated with bend pipe and connect middle suction casing, the end of the back segment of middle suction casing pump chamber, the Spit Section connects the front end of the back segment of pump chamber.The utility model has the advantages that reliability and the life-span that to improve pump, reduce leakage loss, improve pump efficiency 1～3%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise bearing part 1, inlet segment 2, impeller 3, stage casing 4, pump shaft 5, stator 6, Spit Section 7 among the figure, it is characterized in that: be connected in the centre of pump and be with the flange stage casing 8 that spues, be with the flange stage casing 8 that spues to separate pump chambers 9 and be forward and backward two sections, the direction of impeller 3 is opposite on the pump shaft 5 of the direction of impeller 3 on the pump shaft 5 of leading portion and back segment, be with the logical in succession bend pipe 10 in the flange stage casing 8 that spues, be communicated with bend pipe 10 and connect middle suction casing 12, the end of the back segment of middle suction casing 12 pump chambers 9, Spit Section 7 connects the front end of the back segment of pump chamber 9.Because pump is divided into two sections of front and back, water enters the back by impeller 3 pressurizations of leading portion from inlet segment 2, draw from the band of the leading portion rear end flange stage casing 8 that spues then, deliver to the end of back segment by being communicated with bend pipe 10 and middle suction casing 12, water is pressurizeed by the impeller 3 of back segment more subsequently, discharged by Spit Section 7 from the front end of back segment at last, water has been finished the pressurization of whole impeller 3 in pump, but two sections impeller 3 reciprocal installations before and after on the pump shaft 5, then axial power is balanced, therefore can be with the gimbal of balancing axial thrust, the balance return pipe, Balance disc and sealed letter body remove, and improve the reliability and the life-span of pump, reduce leakage loss, improve pump efficiency 1～3%.
Claims (1)
1, a kind of pump shaft is to force self-balanced novel horizontal multistage pump, comprise bearing part, inlet segment, impeller, stage casing, pump shaft, stator, Spit Section, it is characterized in that: be connected in the centre of pump and be with the flange stage casing that spues, be with the flange stage casing that spues to separate forward and backward two sections that pump chamber is, the direction of impeller is opposite on the pump shaft of the direction of impeller on the pump shaft of leading portion and back segment, be with the logical in succession bend pipe in the flange stage casing that spues, be communicated with bend pipe and connect middle suction casing, the end of the back segment of middle suction casing pump chamber, the Spit Section connects the front end of the back segment of pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047524 CN2903501Y (en) | 2005-12-14 | 2005-12-14 | Horizontal multi step pump with axial force self balancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047524 CN2903501Y (en) | 2005-12-14 | 2005-12-14 | Horizontal multi step pump with axial force self balancing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903501Y true CN2903501Y (en) | 2007-05-23 |
Family
ID=38078912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047524 Expired - Lifetime CN2903501Y (en) | 2005-12-14 | 2005-12-14 | Horizontal multi step pump with axial force self balancing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903501Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322831A (en) * | 2018-11-29 | 2019-02-12 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
-
2005
- 2005-12-14 CN CN 200520047524 patent/CN2903501Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322831A (en) * | 2018-11-29 | 2019-02-12 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
| CN109322831B (en) * | 2018-11-29 | 2019-08-13 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |