CN2229558Y - Single-stage single suction cantilever corrosion resisting pump - Google Patents
Single-stage single suction cantilever corrosion resisting pump Download PDFInfo
- Publication number
- CN2229558Y CN2229558Y CN 94244144 CN94244144U CN2229558Y CN 2229558 Y CN2229558 Y CN 2229558Y CN 94244144 CN94244144 CN 94244144 CN 94244144 U CN94244144 U CN 94244144U CN 2229558 Y CN2229558 Y CN 2229558Y
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- suction cantilever
- pump housing
- stage single
- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a single-stage single suction cantilever corrosion resistant centrifugal pump. The inner part of a pump housing is provided with the impeller of an actinoid straight blade which has the same shaft center as the pump housing. The outlet pipe of the pump is a diffuse conical tube, and the extension line of the center of the nozzle of the diffuse conical tube is positioned at the end of a pump body and is arranged at the center part of an annular space which is formed between the pump housing and the outer diameter of the impeller. Compared with the same type pump, the utility model has the advantages that the efficiency can be improved about 9%, the liquid medium with containing solid particle lower than 0.5 mm or with the stickiness lower than 500 centipoises can be conveyed, the wearing parts are reduced, the usage period is long, and the running of the pump can not be overloaded.
Description
The utility model relates to the improvement to the anti-corrosion centrifugal pump of a kind of single stage single suction cantilever type.
The centrifugal corrosion free pump of normally used single stage single suction cantilever type is made up of crooked shape impeller, straighttube-type taper suction chamber, spirality delivery chamber, pump case etc.But this pump efficiency is low, the life-span short, poor reliability.
The purpose of this utility model is to provide a kind of single stage single suction cantilever type partly to flow corrosion free pump.Efficient height, long, good reliability of life-span.
The utility model is to realize so in conjunction with the accompanying drawings.In pump case 3, have one with the straight-vaned impeller 2 of pump case concentric radiation, pump discharge pipe is diffusion Taper Pipe 4, the nozzle 5 center elongation lines of diffusion Taper Pipe nearly pump housing end, just in the centre of impeller outer diameter with the annular space 1 of pump case formation, the pump end cap 6 that has a suction pipe 7 is integral pump case is airtight.
The single stage single suction cantilever type of making according to said structure partly flows corrosion free pump, what impeller was unmatched, back shroud is open type, blade is the radiation prismatic blade, and impeller rotates in toroidal shell, the liquid that is transferred and the speed synchronization of impeller only distribute pump at nozzle place partially liq.This pump pump efficiency more of the same type improves about 9% after tested; Can carry and contain the liquid medium that solid particle 0.5mm is following or viscosity 500 centipoises are following; Because this pump impeller is an open type, the axial force that do not produce in service, impeller can reduce easily damaged parts without seal ring, prolongs life cycle; This pump output liquid is identical with rotating liquid velocity in the pump by the speed of nozzle basal area, and the flow of pump remains unchanged, and lift drops to zero, so pump does not have overload.
Description of drawings:
Fig. 1 single stage single suction cantilever type partly flows the corrosion free pump structural representation
The left view of Fig. 2 Fig. 1
Embodiment:
1, presses structure shown in the accompanying drawing, with flow 3.6m
3The important technological parameters that/h, lift 25m, single stage single suction cantilever type partly flow corrosion free pump designs as follows:
Make with the 1Cr18Ni9 material, 8 in blade, impeller outer diameter 121mm, diffusing tube throat diameter 9.5mm, diffusion pipe range 61.5mm, angle of flare is 9 °, efficient can improve 13%.
2, press structure shown in the accompanying drawing, with flow 7.2m
3The important technological parameters that/h, lift 40m, single stage single suction cantilever type partly flow corrosion free pump designs as follows:
Make with the 1Cr18Ni9 material, 8 in blade, impeller outer diameter 159mm, diffusing tube throat diameter 12mm, diffusion pipe range 80.2mm, angle of flare is 9 °, efficient can improve 10%.
3, press structure shown in the accompanying drawing, with flow 14.4m
3The important technological parameters that/h, lift 100m, single stage single suction cantilever type partly flow corrosion free pump designs as follows:
Make with the 1Cr18Ni9 material, 8 in blade, impeller outer diameter 242mm, diffusing tube throat diameter 13mm, diffusion pipe range 90mm, angle of flare is 9 °, efficient can improve 7%.
The single stage single suction cantilever type of making according to said structure partly flows corrosion free pump, can carry to contain the liquid medium that solid particle 0.5mm is following or viscosity 500 centipoises are following; Life cycle is long; Pump does not have overload.
Claims (1)
- A kind of single stage single suction cantilever type of being made up of impeller 2, pump case 3, pump end cap 6 and suction pipe 7 partly flows corrosion free pump, it is characterized in that in pump case, have one with the straight-vaned impeller of pump case concentric radiation, pump discharge pipe is diffusion Taper Pipe 4, the nozzle 5 center elongation lines of diffusion Taper Pipe nearly pump housing end are just in the centre of impeller outer diameter with the annular space 1 of pump case formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94244144 CN2229558Y (en) | 1994-11-03 | 1994-11-03 | Single-stage single suction cantilever corrosion resisting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94244144 CN2229558Y (en) | 1994-11-03 | 1994-11-03 | Single-stage single suction cantilever corrosion resisting pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229558Y true CN2229558Y (en) | 1996-06-19 |
Family
ID=33850292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94244144 Expired - Fee Related CN2229558Y (en) | 1994-11-03 | 1994-11-03 | Single-stage single suction cantilever corrosion resisting pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229558Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153611B (en) * | 2006-09-28 | 2011-06-08 | 日本电产株式会社 | Centrifugal pump |
| CN111894903A (en) * | 2020-08-07 | 2020-11-06 | 杭州大路实业有限公司 | Serialized single-stage centrifugal pump volute and design method |
-
1994
- 1994-11-03 CN CN 94244144 patent/CN2229558Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153611B (en) * | 2006-09-28 | 2011-06-08 | 日本电产株式会社 | Centrifugal pump |
| US8047816B2 (en) | 2006-09-28 | 2011-11-01 | Nidec Corporation | Centrifugal pump |
| CN111894903A (en) * | 2020-08-07 | 2020-11-06 | 杭州大路实业有限公司 | Serialized single-stage centrifugal pump volute and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |