CN206221284U - Double feed inlet guide-vane horizontal space multi-stage centrifugal pump - Google Patents
Double feed inlet guide-vane horizontal space multi-stage centrifugal pump Download PDFInfo
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- CN206221284U CN206221284U CN201620949220.3U CN201620949220U CN206221284U CN 206221284 U CN206221284 U CN 206221284U CN 201620949220 U CN201620949220 U CN 201620949220U CN 206221284 U CN206221284 U CN 206221284U
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Abstract
The utility model discloses a kind of double feed inlet guide-vane horizontal space multi-stage centrifugal pump, including the pump housing, pump cover, pump shaft, impeller, also include two water inlets and a delivery port, two water inlets and a delivery port connect cast on lower pump body respectively, two ends water inlet flow channel uses helical structure, impeller by being arranged symmetrically back-to-back, two water inlets are provided with the first stage impeller of efficient anti-cavitation, delivery port is provided with final stage double-entry impeller, interstage flow road between the pump housing and pump cover uses radial stator, by axial line horizonally split into two parts symmetrical above and below, upper stator is cast as a unified entirety with pump cover, lower stator is cast as unified entirety with the pump housing.The simple compact, anti-cavitation performance of the centrifugal pump structure is good, and operational efficiency is high and good stability, installs and safeguards and more facilitates.
Description
Technical field
The utility model is related to centrifugal pump field, and multistage centrifugal is opened in more particularly to a kind of double feed inlet guide-vane level
Pump.
Background technology
Centrifugal multistage pump multiple centrifugal pump is driven in existing level and is generally an import, the limited flow of pump, cavitation performance is poor, using impeller
The multistage pump being arranged symmetrically, to needing to set transition runner between reverse first stage impeller, makes the structure of pump very in final stage forward direction impeller
It is complicated.And pumping chambers at different levels use scroll casing type, with being also easy to produce in larger axial dimension and radial dimension, and running
Pressure fluctuation, influences the stability of the operation of pump.
The content of the invention
To solve above-mentioned at least one problem that existing centrifugal pump field is present, the purpose of this utility model is offer one
Kind of simple and compact for structure, anti-cavitation performance is good, operational efficiency is high and double feed inlet guide-vane level of good stability in open multistage
Centrifugal pump.
To achieve the above object, the utility model provides following technical scheme：
Double feed inlet guide-vane horizontal space multi-stage centrifugal pump, including the pump housing, pump cover, pump shaft, impeller, also including two water inlets
Mouth and a delivery port, two water inlets and a delivery port connect casting on lower pump body respectively, and two ends water inlet flow channel uses spiral
Shape structure, by being arranged symmetrically back-to-back, two water inlets are provided with first stage impeller to impeller, and first stage impeller is using efficiently low cavitation design
Structure, delivery port is provided with final stage double-entry impeller, and the interstage flow road between the pump housing and pump cover uses radial stator, by axial line water
Flat cutting is divided into two parts symmetrical above and below, and upper stator is cast as a unified entirety with pump cover, and lower stator is cast as system with the pump housing
One entirety.
Further, pump cover is provided with exhaust hole, and pump housing bottom is provided with mudhole.
Further, it is provided with sealing ring between impeller and pump housing pump cover.
Further, the positive secondary impeller and anti-secondary leaf of impartial quantity are provided between first stage impeller and final stage double-entry impeller
Wheel.
The utility model has the advantages that：（1）Using double feed inlet symmetrical structure, flow is same parameter list import
The twice of multistage pump, first stage impeller uses high-cavitation-resistance energy design structure, with reference to the efficient low cavitation spiral current of import water suction
Road, makes to enter in pump that fluid eddies are few, enters stream mode good, it is ensured that liquid with flowing, anti-cavitation performance is high；（2）Using radially
Runner is equivalent in the uniform multiple spiral pressurized water chamber in impeller periphery, the muscle piece at the stator back side between formula guide vane structure, stator（It is anti-ballistic
Leaf）Function as suction chamber, it is possible to decrease liquid velocity, eliminate liquid in rotation component, while next stage impeller is inserted the liquid into,
Additionally, the pressure fluctuation in running can be eliminated using the radial impeller of the number of blade and the non-multiple proportion of impeller blade, prevent
Resonance, can improve the stability of operation；（3）Using double feed inlet structure, eliminate single entry impeller and be arranged symmetrically needed for multistage pump
Transition runner, radial vane has both pumping chamber and suction chamber double action, substantially reduces the axial dimension of pump, above lead simultaneously
Leaf and pump cover, lower stator and the pump housing carry out monoblock cast, and above structure makes pump with parts simplified, simple and compact for structure,
Install and safeguard and more facilitate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description does simple introduction, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Accompanying drawing 1 is the structural representation of the utility model embodiment.
In accompanying drawing, 1 is pump cover, and 2 is the pump housing, and 3 is pump shaft, and 4 is positive first stage impeller, and 5 is positive impeller, and 6 is final stage double suction leaf
Wheel, 7 is anti-impeller, and 8 is anti-first stage impeller, and 9 is bearing body second part, and 10 is bearing body first part.
Specific embodiment
Below by specific embodiment, the present invention is further illustrated.
The specific embodiment of the structure as shown in Figure 1, including the pump housing 1, pump cover 2, rotor part, axle envelope, near electricity
The bearing body first part 10 of generator terminal and the bearing body second part 9 of tail end are in interior main parts size.Two imports and one go out
Mouth connects respectively to be cast on lower pump body, the efficient low cavitation helical structure of two ends water inlet flow channel.
Impeller, by being arranged symmetrically back-to-back, is positive first stage impeller 4 and anti-first stage impeller 8, centre at two suction on pump shaft 3
For final stage water outlet double-entry impeller 6, positive secondary 5 impeller and anti-secondary of impartial quantity between first stage impeller and final stage water outlet double-entry impeller
Impeller 7.Sealing ring is provided between impeller and pump housing pump cover, impeller is coupled with pump shaft by flat key, the bearing body portion at two ends
Part is played a supporting role.Interstage flow road between the pump housing and pump cover uses radial stator, by axial line horizonally split into upper and lower
Symmetrical two parts, upper stator is cast as a unified entirety with pump cover, and lower stator is cast as unified entirety, pump cover with the pump housing
Exhaust hole is provided with, pump housing bottom is provided with mudhole.
During pump operation, first stage impeller is entered by two imports by conveying liquid, stators at different levels and secondary leaf are flowed through successively
After wheel, collect in final stage pumping chamber by outlet outflow after flowing through final stage water outlet double-entry impeller.
Specific embodiment used herein is set forth to principle of the invention and implementation method, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept.The above is only the side of being preferable to carry out of the invention
Formula, it is noted that due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made,
Above-mentioned technical characteristic can be by rights combined；These improve retouching, change or combine, or not improved by hair
Bright design and technical scheme directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (4)
1. double feed inlet guide-vane horizontal space multi-stage centrifugal pump, including the pump housing, pump cover, pump shaft, impeller, it is characterised in that also wrap
Two water inlets and a delivery port are included, two water inlets and a delivery port connect cast on lower pump body respectively, two ends feed water flow
Road uses helical structure, and by being arranged symmetrically back-to-back, two water inlets are provided with efficient low cavitation first stage impeller, delivery port to impeller
Final stage double-entry impeller is provided with, the interstage flow road between the pump housing and pump cover uses radial stator, by axial line horizonally split into upper
Symmetrical two parts down, upper stator is cast as a unified entirety with pump cover, and lower stator is cast as unified entirety with the pump housing.
2. double feed inlet guide-vane horizontal space multi-stage centrifugal pump according to claim 1, it is characterised in that pump cover is provided with
Exhaust hole, pump housing bottom is provided with mudhole.
3. double feed inlet guide-vane horizontal space multi-stage centrifugal pump according to claim 1, it is characterised in that impeller and the pump housing
Sealing ring is provided between pump cover.
4. double feed inlet guide-vane horizontal space multi-stage centrifugal pump according to claim 1, it is characterised in that first stage impeller with
The positive secondary impeller and anti-secondary impeller of impartial quantity are provided between final stage double-entry impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949220.3U CN206221284U (en) | 2016-08-26 | 2016-08-26 | Double feed inlet guide-vane horizontal space multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949220.3U CN206221284U (en) | 2016-08-26 | 2016-08-26 | Double feed inlet guide-vane horizontal space multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221284U true CN206221284U (en) | 2017-06-06 |
Family
ID=58781354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620949220.3U Active CN206221284U (en) | 2016-08-26 | 2016-08-26 | Double feed inlet guide-vane horizontal space multi-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488603A (en) * | 2018-11-29 | 2019-03-19 | 长沙佳能通用泵业有限公司 | Centrifugal multistage pump multiple centrifugal pump is opened in a kind of multiple flow passages baffle formula |
| CN112283148A (en) * | 2020-11-12 | 2021-01-29 | 重庆水泵厂有限责任公司 | Water outlet section sealing structure of self-balancing double-shell multistage centrifugal pump |
-
2016
- 2016-08-26 CN CN201620949220.3U patent/CN206221284U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488603A (en) * | 2018-11-29 | 2019-03-19 | 长沙佳能通用泵业有限公司 | Centrifugal multistage pump multiple centrifugal pump is opened in a kind of multiple flow passages baffle formula |
| CN112283148A (en) * | 2020-11-12 | 2021-01-29 | 重庆水泵厂有限责任公司 | Water outlet section sealing structure of self-balancing double-shell multistage centrifugal pump |
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