CN202946398U - Tetrabothridiata pump - Google Patents
Tetrabothridiata pump Download PDFInfo
- Publication number
- CN202946398U CN202946398U CN 201220566783 CN201220566783U CN202946398U CN 202946398 U CN202946398 U CN 202946398U CN 201220566783 CN201220566783 CN 201220566783 CN 201220566783 U CN201220566783 U CN 201220566783U CN 202946398 U CN202946398 U CN 202946398U
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- CN
- China
- Prior art keywords
- pump
- impellers
- impeller
- tetrabothridiata
- suction
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Abstract
The utility model relates to an industrial application pump, in particular to a tetrabothridiata pump which reduces cavitation, meets requirements of low lift and high rotation speed and is used for a liquid delivering system. The tetrabothridiata pump comprises an outlet flange and an inlet flange, wherein the outlet flange and the inlet flange are used for connecting pipelines. The tetrabothridiata pump is characterized by further comprising a pump body, impellers which are installed in the pump body and a pump shaft which is used for supporting the impellers. The number of the impellers is at least two and the impellers are arranged on the pump shaft in parallel. The impellers are covered by a cover plate. The impellers are single suction impellers or double suction impellers. Each single suction impeller is provided with an independent liquid absorbing mouth and an independent liquid exhausting mouth. Each double suction impeller is provided with two independent liquid absorbing mouths and two independent liquid exhausting mouths. The tetrabothridiata pump can solve the problem of poor cavitation condition of an industrial circulating water system device in the prior art, wherein the industrial circulating water system device is high in flow, low in lift and high in revolving speed. Specific speed of the pump is reduced and revolving speed of the pump and a driving motor can be improved. Accordingly, cost is reduced and waste is reduced.
Description
Technical field
The utility model relates to a kind of commercial Application pump, is specifically related to a kind of four sucking pumps that are used 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 relatively poor, easily cavitation erosion reduces the efficient of pump and working life.Be 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 that adopts is to use slow-speed of revolution motor or speed reducer that pump is driven, 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 that adopts is to improve pump inlet pressure, namely 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.
The model utility content
The purpose of this utility model is to provide a kind of and reduces cavitation erosion, meets four sucking pumps that are used for liquid conveying system of 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 technological scheme that the utility model adopts 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 are single suction impeller or double-entry impeller, and each single suction impeller is provided with independently liquid suction 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 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 so forms continuous fluid in the suction pipe inflow pump, constantly discharge from pump discharge.In view of the structural feature of four sucking pumps, make the fluid that enters 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 utility model 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.
Description of drawings
Fig. 1 is vertical view cutaway drawing of the present utility model;
Fig. 2 is elevational cross-sectional view of the present utility model;
Fig. 3 is sectional side view of the present utility model;
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 preferred embodiment of the present utility model, below in conjunction with accompanying drawing, the utility model is further described.
According to Fig. 1-Fig. 3, four sucking pumps comprise for the outlet(discharge) flange 4 and the suction flange 3 that connect 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 suction 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 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 so forms continuous fluid in the suction pipe inflow pump, constantly discharge from pump discharge.In view of the structural feature of four sucking pumps, make the fluid that enters 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 utility model in any form, and all employings are equal to replaces or technological scheme that the mode of equivalent transformation obtains, all drops on protection domain of the present utility model.
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 that liquid 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 |
|---|---|---|---|
| CN 201220566783 CN202946398U (en) | 2012-10-31 | 2012-10-31 | Tetrabothridiata pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566783 CN202946398U (en) | 2012-10-31 | 2012-10-31 | Tetrabothridiata pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946398U true CN202946398U (en) | 2013-05-22 |
Family
ID=48422105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566783 Expired - Lifetime CN202946398U (en) | 2012-10-31 | 2012-10-31 | Tetrabothridiata pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937095A (en) * | 2012-10-31 | 2013-02-20 | 江苏合得合能环保科技发展有限公司 | Four-suction pump |
-
2012
- 2012-10-31 CN CN 201220566783 patent/CN202946398U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937095A (en) * | 2012-10-31 | 2013-02-20 | 江苏合得合能环保科技发展有限公司 | Four-suction pump |
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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: 20130522 |
|
| CX01 | Expiry of patent term |