CN203532269U - Parallel type self-balance multiple-stage centrifugal pump - Google Patents
Parallel type self-balance multiple-stage centrifugal pump Download PDFInfo
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- CN203532269U CN203532269U CN201320586375.1U CN201320586375U CN203532269U CN 203532269 U CN203532269 U CN 203532269U CN 201320586375 U CN201320586375 U CN 201320586375U CN 203532269 U CN203532269 U CN 203532269U
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- impeller
- pump housing
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- centrifugal pump
- water
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Abstract
The utility model discloses a parallel type self-balance multiple-stage centrifugal pump. Due to the fact that impellers are symmetrically distributed in a pump body back to back, axial self-balance of the impellers is achieved, mechanical friction produced by the multiple-stage centrifugal pump due to axial force in a running process is reduced, and the service life of the centrifugal pump is prolonged. In addition, the centrifugal pump is free of a balance structure, comprises few easily damaged parts, and is small in leakage loss, high in safe reliability and easy to maintain.
Description
Technical field
The utility model relates to a kind of centrifugal pump, is specifically related to a kind of self-balance type multistage centrifugal pump.
Background technique
Multistage centrifugal pump is mainly used in the occasion that flow is less than normal, lift is high at present; Yet it is large that double-sucking type middle-opening pump is mainly used in flow, the occasion that lift is low.During a plurality of pump operation, because feed-water end and water exit end exist pressure reduction, will produce the axial force that is directed to feed-water end.For balancing axial thrust, conventionally can adopt equalizing orifice, balance muscle, balancing drum, Balance disc isoequilibrium mechanism.But it is many that these balanced measure ubiquities easily damaged parts, the drawback such as leakage loss is large, power consumption increases, and counterbalance effect is not too reliable.Particularly for the Balance disc mechanism of a plurality of pumps, easily wearing and tearing especially, dismounting trouble, the problem such as difficult in maintenance.Double entry middle-opening pump is not all to be with additional balanced controls and the pump of the axial force that certainly balances each other.But the very difficult satisfied for example remote getting water from water head site of the range of lift of Double entry middle-opening pump and cavitation performance, the occasions such as mine drainage that the water yield is large.
Model utility content
The utility model is a kind of parallel self-balance type multistage centrifugal pump of parallel connection with innovation structure at present large flow sub-high pressure pump market vacancy exploitation, be characterized in: adopt impeller to arrange back-to-back, and from both sides feed-water end, absorb water, the increasing of flow-rate ratio prototype water pump is twice simultaneously.And this centrifugal pump is removed equilibrium structure from, few easy workout part, leakage loss is little, and safety reliability is high, safeguards simple.
For realizing above object, the technological scheme that the utility model adopts is: a kind of parallel self-balance type multistage centrifugal pump, comprise the pump housing and main shaft, just front impeller, positive impeller, anti-impeller and anti-front impeller are arranged symmetrically and are arranged on main shaft, impeller in the middle of the middle of main shaft is provided with, middle impeller is double-entry impeller, just front impeller and positive impeller are arranged on left section of the pump housing, anti-front impeller and anti-impeller are arranged on right section of the pump housing, left front section and right front section of the described pump housing is all provided with feed-water end, left front section of the described pump housing is connected with left section, right front section of the described pump housing is connected with right section, left section and right section of the described pump housing is all connected with the water exit end of pump housing middle.
Wherein, left section of the described pump housing is provided with guide vane, and guide vane coordinates with positive impeller, and right section of the described pump housing is provided with return guide vane, and return guide vane coordinates with anti-impeller, and the intermediate section of the described pump housing is provided with intermediate guide blade, and intermediate guide blade matches with middle impeller;
Wherein, the quantity of described positive impeller and anti-impeller is more than or equal to 2.
Wherein, described centrifugal pump is provided with distributed water pipe parts, and described left feed-water end and right feed-water end are all connected with distributed water pipe parts.
The utility model has improved the operating conditions of axle and bearing, has extended the time between failures of centrifugal pump, has effectively reduced maintenance expenses, and is more suitable for containing working under the mal-conditions such as particle.Middle-opening pump ratio with same traffic grade, can obtain higher lift and more excellent cavitation performance.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1. distributed water pipe parts, 2. left feed-water end, 3. left section, 4. guide vane, the 5. pump housing, 6. water exit end, 7. intermediate guide blade, 8. intermediate section, 9. right section, 10. return guide vane, 11. right feed-water ends, 12. right bearing body components, 13. gland seal devices, 14. anti-front impellers, 15. anti-impellers, 16. middle impellers, 17. positive impellers, 18. just front impellers, 19. left bearing body components, 20. main shafts.
Embodiment
As shown in Figure 1, a kind of parallel self-balance type multistage centrifugal pump, comprise the pump housing 5 and main shaft 20, the both sides of described main shaft 20 are provided with gland seal device 13, main shaft 20 is by left bearing body component 19, right bearing body component 12 is fixed on the pump housing 5, just front impeller 18, positive impeller 17, guide vane 4, anti-impeller 15, return guide vane 10 and anti-front impeller 14 are that back-to-back being arranged symmetrically is arranged on described main shaft, middle impeller 16 and intermediate guide blade 7 are arranged on the middle of described main shaft 20, described just front impeller 18, positive impeller 17 and guide vane 4 are positioned at left section 3 of the described pump housing, described anti-front impeller 14, anti-impeller 15 and return guide vane 10 are positioned at right section 9 of the described pump housing.
When water pump operation, water is sucked by distributed water pipe parts 1, flow to respectively left feed-water end 2 and right feed-water end 11, the water of left feed-water end 2 in the past impeller 18, guide vane 4 and a plurality of positive impeller 17 step by step after supercharging, imports in middle impeller 16, and the water of right feed-water end 11 is impeller 14 from anti-, return guide vane 10 and a plurality of anti-impeller 18 are step by step after supercharging, also import in middle impeller 16, the current that finally by middle impeller 16, two ends imported, discharged to intermediate guide blade 17, are then discharged water from water exit end 6.Because both sides impeller size is identical, quantity equates, thus the axial force that rear and front end produces equate, and to produce axial force direction be contrary at two ends, so axial force sum is zero, the axial force of water pump obtains in a basic balance.
Above a kind of parallel self-balance type multistage centrifugal pump provided by the utility model is introduced in detail, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (4)
1. a parallel self-balance type multistage centrifugal pump, comprise the pump housing and main shaft, it is characterized in that: impeller just, positive impeller, anti-impeller and anti-front impeller are arranged symmetrically and are arranged on main shaft, impeller in the middle of the middle of main shaft is provided with, middle impeller is double-entry impeller, just front impeller and positive impeller are arranged on left section of the pump housing, anti-front impeller and anti-impeller are arranged on right section of the pump housing, left front section and right front section of the described pump housing is all provided with feed-water end, left front section of the described pump housing is connected with left section, right front section of the described pump housing is connected with right section, left section and right section of the described pump housing is all connected with the water exit end of pump housing middle.
2. a kind of parallel self-balance type multistage centrifugal pump according to claim 1, it is characterized in that: left section of the described pump housing is provided with guide vane, guide vane coordinates with positive impeller, right section of the described pump housing is provided with return guide vane, return guide vane coordinates with anti-impeller, the intermediate section of the described pump housing is provided with intermediate guide blade, and intermediate guide blade matches with middle impeller.
3. a kind of parallel self-balance type multistage centrifugal pump according to claim 1, is characterized in that: the quantity of described positive impeller and anti-impeller is more than or equal to 2.
4. according to a kind of parallel self-balance type multistage centrifugal pump described in claim 1-3 any one, it is characterized in that: described centrifugal pump is provided with distributed water pipe parts, described left feed-water end and right feed-water end are all connected with distributed water pipe parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586375.1U CN203532269U (en) | 2013-09-23 | 2013-09-23 | Parallel type self-balance multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586375.1U CN203532269U (en) | 2013-09-23 | 2013-09-23 | Parallel type self-balance multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532269U true CN203532269U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586375.1U Expired - Lifetime CN203532269U (en) | 2013-09-23 | 2013-09-23 | Parallel type self-balance multiple-stage centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203532269U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN106939905A (en) * | 2017-05-17 | 2017-07-11 | 江苏大学 | A kind of self-balancing goes with each other all the time centrifugal pump structure |
| US20210363995A1 (en) * | 2020-05-20 | 2021-11-25 | Sulzer Management Ag | Multistage centrifugal pump for conveying a fluid |
-
2013
- 2013-09-23 CN CN201320586375.1U patent/CN203532269U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN106939905A (en) * | 2017-05-17 | 2017-07-11 | 江苏大学 | A kind of self-balancing goes with each other all the time centrifugal pump structure |
| US20210363995A1 (en) * | 2020-05-20 | 2021-11-25 | Sulzer Management Ag | Multistage centrifugal pump for conveying a fluid |
| US11649825B2 (en) * | 2020-05-20 | 2023-05-16 | Sulzer Management Ag | Multistage centrifugal pump for conveying a fluid |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |