CN102937095A - Four-suction pump - Google Patents
Four-suction pump Download PDFInfo
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- CN102937095A CN102937095A CN2012104267243A CN201210426724A CN102937095A CN 102937095 A CN102937095 A CN 102937095A CN 2012104267243 A CN2012104267243 A CN 2012104267243A CN 201210426724 A CN201210426724 A CN 201210426724A CN 102937095 A CN102937095 A CN 102937095A
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Abstract
The invention relates to an industrial application pump, in particular to a four-suction pump which can reduce cavitation corrosion, accord with requirements for low lift and high rotation speed and be applied to a liquid conveying system. The four-suction pump comprises an outlet flange and an inlet flange which are used for being connected with pipelines. The four-suction pump is characterized by further comprising a pump body, at least two impellers arranged in the pump body and a pump shaft for supporting the impellers. The impellers are arranged on the pump shaft in parallel and covered by a covering plate. The impellers are single-suction impellers or double-suction impellers, each single-suction impeller is provided with an independent liquid sucking and discharging port, and each double-suction impeller is provided with two independent liquid sucking and discharging ports. By means of the four-suction pump, the problem that the existing industrial circulation water system device with high flow capacity, low lift and high rotation speed is poor in cavitation corrosion condition can be solved, the specific speed of the pump is reduced, the rotation speed of the pump and the rotation speed of a driving motor can be increased, and accordingly, cost and waste are reduced.
Description
Technical field
The present invention relates to a kind of commercial Application pump, be specifically related to a kind of four sucking pumps for liquid conveying system that reduce cavitation erosion, meet the high rotating speed requirement of low lift.
Background technique
At present, industrial single suction or double suction pump, in the situation that flow is higher, lift is lower, rotating speed is larger, the specific speed of water pump is higher, causes the pump cavitation condition poor, easily cavitation erosion reduces the efficiency of pump and working life.For head it off, usually adopt following two methods:
One, reduce the pump design speed, pump specific angular speed is reduced, thereby improve the cavitation condition of pump, the general method adopted is to use slow-speed of revolution motor or speed reducer to be driven pump, but due to common, characteristic that cost is higher lower with the power drive motor rotary speed, cause the system dynamic cost to increase substantially, the overcurrent runner of the pump housing increases, the cost of the pump housing also improves greatly, causes serious waste.
Two, improve the device net positive suction head, the general method adopted is to improve pump inlet pressure, requires the construction foundation elevation of pump house to reduce, cause cost to increase, especially for the pump house of many pumps group, for improving the wherein device net positive suction head of a group, cause holistic cost to increase considerably.
Summary of the invention
The object of the present invention is to provide a kind of four sucking pumps for liquid conveying system that reduce cavitation erosion, meet the high rotating speed requirement of low lift, overcome existing high flow capacity, low lift, the poor problem of high rotating speed industrial circulating water system device cavitation condition, can improve the design speed of pump and motor, greatly reduce the cost of fluid delivery system, cut the waste.
To achieve these goals, the technical solution adopted in the present invention is: four sucking pumps, comprise outlet(discharge) flange and suction flange for connecting tube, and it is characterized in that: also comprise the pump housing, be located at the impeller in the pump housing, the pump shaft of support impeller; Described impeller is at least 2, is arranged in parallel on pump shaft; Impeller is covered by cover plate.
Aforesaid four sucking pumps, described impeller is single suction impeller or double-entry impeller, and each single suction impeller is provided with independently liquid and sucks and exhaust port, and each double-entry impeller is provided with two independently liquid suction and exhaust ports.
Aforesaid four sucking pumps, described pump shaft is connected with motor shaft by coupling.
Aforesaid four sucking pumps, the described pump housing is provided with water intake and water outlet.
Preferably, pump adopts two double-entry impeller coaxial parallel-connection operations, and two impellers rotate in the pump housing, after the acting of impeller convection cell, the merit of drive end input is converted into to the mechanical energy of fluid, and fluid is discharged from the water outlet of the pump housing.The impeller center forms low pressure area, and the fluid of suction side, in the suction pipe inflow pump, so forms continuous fluid, constantly from pump discharge, discharges.In view of the structural feature of four sucking pumps, make the fluid entered from inlet pipeline, enter respectively the two ends of two impellers, i.e. four suction ports, each suction port inflow-rate of water turbine is 1/4th of pump design discharge, has reduced the specific speed of pump, has improved the cavitation condition of pump.
The present invention can overcome existing high flow capacity, low lift, the poor problem of high rotating speed industrial circulating water system device cavitation condition, reduces the specific speed of pump, and improves rotating speed and the drive motor rotating speed of pump, thereby reduces costs, and cuts the waste.
The accompanying drawing explanation
Fig. 1 is vertical view cutaway drawing of the present invention;
Fig. 2 is elevational cross-sectional view of the present invention;
Fig. 3 is sectional side view of the present invention;
Wherein, 1 impeller, 2 pump shafts, 3 suction flanges, 4 outlet(discharge) flanges, 5 cover plates, 7 water outlets, 8 water intakes.
Embodiment
Figure is the preferred embodiments of the present invention, and below in conjunction with accompanying drawing, the invention will be further described.
According to Fig. 1-Fig. 3, four sucking pumps, comprise outlet(discharge) flange 4 and suction flange 3 for connecting subsidiary conduit, it is characterized in that: also comprise the pump housing, be located at the impeller 1 in the pump housing, the pump shaft 2 of support impeller 1; Described impeller 1 is at least 2, is arranged in parallel on pump shaft 2; Impeller 1 is covered by cover plate 5.Impeller 1 is single suction impeller or double-entry impeller, and each single suction impeller is provided with independently liquid and sucks and exhaust port, and each double-entry impeller is provided with two groups of independently liquid suction and exhaust ports.The pump housing is provided with total water intake 8 and water outlet 7.
Preferably, pump adopts two double-entry impeller coaxial parallel-connection operations, and two impellers rotate in the pump housing, after the acting of impeller convection cell, the merit of drive end input is converted into to the mechanical energy of fluid, and fluid is discharged from the water outlet of the pump housing.The impeller center forms low pressure area, and the fluid of suction side, in the suction pipe inflow pump, so forms continuous fluid, constantly from pump discharge, discharges.In view of the structural feature of four sucking pumps, make the fluid entered from inlet pipeline, enter respectively the two ends of two impellers, i.e. four suction ports, each suction port inflow-rate of water turbine is 1/4th of pump design discharge, has reduced the specific speed of pump, has improved the cavitation condition of pump.
Above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technological scheme that the mode of equivalent transformation obtains, all drops on protection scope of the present invention.
Claims (4)
1. four sucking pumps, comprise outlet(discharge) flange and suction flange for connecting tube, it is characterized in that: also comprise the pump housing, be located at the impeller in the pump housing, the pump shaft of support impeller; Described impeller is at least 2, is arranged in parallel on pump shaft; Impeller is covered by cover plate.
2. four sucking pumps according to claim 1, it is characterized in that: described impeller is single suction impeller or double-entry impeller, each single suction impeller is provided with independently liquid and sucks and exhaust port, each double-entry impeller be provided with two independently liquid suck and exhaust ports.
3. four sucking pumps according to claim 1, it is characterized in that: described pump shaft is connected with motor shaft by coupling.
4. four sucking pumps according to claim 1, it is characterized in that: the described pump housing is provided with water intake and water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104267243A CN102937095A (en) | 2012-10-31 | 2012-10-31 | Four-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104267243A CN102937095A (en) | 2012-10-31 | 2012-10-31 | Four-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937095A true CN102937095A (en) | 2013-02-20 |
Family
ID=47696009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104267243A Pending CN102937095A (en) | 2012-10-31 | 2012-10-31 | Four-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937095A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911421A (en) * | 2020-08-13 | 2020-11-10 | 沈阳格瑞德泵业有限公司 | Ultra-low cavitation horizontal centrifugal pump with four-port suction |
| CN117189581A (en) * | 2023-09-27 | 2023-12-08 | 深圳市英维克科技股份有限公司 | Pump package integrated system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191018808A (en) * | 1911-02-10 | 1912-01-18 | Henry Burnett Watson | Improvements in Centrifugal Pumps and Fans. |
| CN2187689Y (en) * | 1994-04-12 | 1995-01-18 | 郑州诚信电站装备产业科技有限公司 | Energy-saving double-suction centrifugal circulation water pump |
| CN2419393Y (en) * | 2000-05-16 | 2001-02-14 | 沈阳化工泵制造厂 | First stage separate double sucking impeller for multi-stage centrifugal pump |
| CN2462111Y (en) * | 2001-01-10 | 2001-11-28 | 沈阳格瑞德化工泵制造有限公司 | One-stage double-sucking two-end supporting and dual-shell oil mud pump |
| CN1609458A (en) * | 2003-10-23 | 2005-04-27 | 兰州理工大学 | A double suction centrifugal pump |
| JP2009156097A (en) * | 2007-12-25 | 2009-07-16 | Hitachi Plant Technologies Ltd | Multi-stage diffuser pump |
| CN201377436Y (en) * | 2009-03-31 | 2010-01-06 | 长沙水泵厂有限公司 | Structure for double-suction multistage horizontal split pump |
| CN101696692A (en) * | 2009-09-30 | 2010-04-21 | 邱思婕 | Double-suction multi-stage centrifugal pump |
| CN201606258U (en) * | 2009-12-30 | 2010-10-13 | 大耐泵业有限公司 | Two-stage double-suction high-temperature high-pressure process pump |
| CN101936293A (en) * | 2010-09-13 | 2011-01-05 | 赵景权 | Double-inlet large-flow multistage centrifugal pump |
| JP2011226310A (en) * | 2010-04-15 | 2011-11-10 | Torishima Pump Mfg Co Ltd | Horizontal shaft pump |
| CN202946398U (en) * | 2012-10-31 | 2013-05-22 | 江苏合得合能环保科技发展有限公司 | Tetrabothridiata pump |
-
2012
- 2012-10-31 CN CN2012104267243A patent/CN102937095A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191018808A (en) * | 1911-02-10 | 1912-01-18 | Henry Burnett Watson | Improvements in Centrifugal Pumps and Fans. |
| CN2187689Y (en) * | 1994-04-12 | 1995-01-18 | 郑州诚信电站装备产业科技有限公司 | Energy-saving double-suction centrifugal circulation water pump |
| CN2419393Y (en) * | 2000-05-16 | 2001-02-14 | 沈阳化工泵制造厂 | First stage separate double sucking impeller for multi-stage centrifugal pump |
| CN2462111Y (en) * | 2001-01-10 | 2001-11-28 | 沈阳格瑞德化工泵制造有限公司 | One-stage double-sucking two-end supporting and dual-shell oil mud pump |
| CN1609458A (en) * | 2003-10-23 | 2005-04-27 | 兰州理工大学 | A double suction centrifugal pump |
| JP2009156097A (en) * | 2007-12-25 | 2009-07-16 | Hitachi Plant Technologies Ltd | Multi-stage diffuser pump |
| CN201377436Y (en) * | 2009-03-31 | 2010-01-06 | 长沙水泵厂有限公司 | Structure for double-suction multistage horizontal split pump |
| CN101696692A (en) * | 2009-09-30 | 2010-04-21 | 邱思婕 | Double-suction multi-stage centrifugal pump |
| CN201606258U (en) * | 2009-12-30 | 2010-10-13 | 大耐泵业有限公司 | Two-stage double-suction high-temperature high-pressure process pump |
| JP2011226310A (en) * | 2010-04-15 | 2011-11-10 | Torishima Pump Mfg Co Ltd | Horizontal shaft pump |
| CN101936293A (en) * | 2010-09-13 | 2011-01-05 | 赵景权 | Double-inlet large-flow multistage centrifugal pump |
| CN202946398U (en) * | 2012-10-31 | 2013-05-22 | 江苏合得合能环保科技发展有限公司 | Tetrabothridiata pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911421A (en) * | 2020-08-13 | 2020-11-10 | 沈阳格瑞德泵业有限公司 | Ultra-low cavitation horizontal centrifugal pump with four-port suction |
| CN117189581A (en) * | 2023-09-27 | 2023-12-08 | 深圳市英维克科技股份有限公司 | Pump package integrated system |
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| PB01 | Publication | ||
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Application publication date: 20130220 |