CN105041719B - A kind of double suction centrifugal pump guide-vane choma - Google Patents
A kind of double suction centrifugal pump guide-vane choma Download PDFInfo
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- CN105041719B CN105041719B CN201510360536.9A CN201510360536A CN105041719B CN 105041719 B CN105041719 B CN 105041719B CN 201510360536 A CN201510360536 A CN 201510360536A CN 105041719 B CN105041719 B CN 105041719B
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- impeller
- guide vane
- choma
- centrifugal pump
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Abstract
A kind of double suction centrifugal pump guide-vane choma, including choma body (1), guide vane (2) and guide vane hub (3), guide vane hub (3) side is provided with water guide cone (4), guide vane hub (3) opposite side is provided with rear cover (6), and bearing (5) is set in guide vane hub 3；Rear cover (6) connects and flushes with the retainer ring (10) of wheel hub (9) front end of impeller (7) input end, and the pump shaft (11) of impeller (7) sequentially passes through water guide cone (4), bearing (5) and rear cover (6), and then impeller (7) and choma body (1) are linked to be an entirety.Choma body of the present invention is linked to be an entirety with impeller, structural stability strengthens, reduce the collision and abrasion of impeller counterpart ring body, reduce mechanical loss and leakage loss, at the same time, the fluidised form of impeller for double suction centrifugal pump import can be improved, reduces the impact loss of incoming, improves the operational efficiency of double suction centrifugal pump；For silt carrying flow, the angle of attack of silt can be improved, the sand erosion at impeller for double suction centrifugal pump leaf head position is reduced, so as to improve the bulk life time of impeller；And easy to promote.
Description
Technical field
The present invention relates to centrifugation pump technical field, specifically a kind of double suction centrifugal pump guide-vane choma.
Background technology
Double suction centrifugal pump is widely used in distruting water transregionally, field irrigation, production confession since its flow is big, lift is high
The fields such as draining.Double suction centrifugal pump suction chamber is semi-spiral structure, and impeller inlet front end flow behavior is extremely complex, particularly exists
For the solid-liquid two-phase flow of conveying such as Huanghe water when arsenicbearing gold ores, the unstability of flowing and impact easily cause the blade of centrifugal pump impeller
Abrasion, these all influence the working performance of water pump, in addition cause water pump damage and shut down, cause great economic loss and society
It can influence.
To improved technical solution at centrifugal pump inlet, such as application for a patent for invention, " centrifugal pump inlet guide vane energy-saving adjusting fills
Put and power-economizing method ", Application No. 2008101175544, it is proposed that set on the suction hose before centrifugal pump water inlet preposition
Vane apparatus, to change the inlet flow conditions before impeller of pump import and adjust Working Conditions of Centrifugal Injection Pumps.
And for example application for a patent for invention " one kind improves centrifugal pump inlet nonlinear inflow device ", Application No.
2013100370413, being set before the import of pump includes muscle and the sleeve in hole, improves the efficiency of centrifugal pump to a certain extent,
Slow down the speed that cavitation occurs for centrifugal pump at the same time.
But the technical solution of above-mentioned patent application is only applicable to single-suction centrifugal pump, and for double suction centrifugal pump structure then
It is inapplicable.
The content of the invention
In view of the special construction of double suction centrifugal pump suction chamber, the present invention provides a kind of double suction centrifugal pump guide-vane choma,
While being applied as choma, import of water pump impeller fluidised form can be improved, improve the efficiency of centrifugal pump to a certain extent, reduced
The sand erosion of impeller vane of centrifugal pumps head region.
A kind of double suction centrifugal pump guide-vane choma of the present invention, including choma body 1, guide vane 2 and guide vane hub 3, guide vane hub 3 one
Side is provided with water guide cone 4, and 3 opposite side of guide vane hub is provided with rear cover 6, bearing 5 is set in guide vane hub 3；Rear cover 6 and 7 input end of impeller
The retainer ring 10 of 9 front end of wheel hub connect and flush, the pump shaft 11 of impeller 7 sequentially pass through water guide cone 4, bearing 5 and rear cover 6 after
And impeller 7 and choma body 1 are linked to be an entirety.
1 inner wall of choma body is equidistantly equipped with 7 import outer rim of impeller, 1 inner wall of choma body and 7 import outer rim of impeller
Gap L be 0.1~0.5mm.
The piece number of the guide vane 2 is more than the piece number of the blade 8 of impeller 7, and the piece number of guide vane 2 and the piece number of blade 8
There is no greatest common divisor.
2 one end of guide vane is connected to 1 inner wall of choma body, another to be terminated at guide vane hub 3.
The place direction and the angle α of the import vertical direction of impeller 7 of the guide vane 2 are 0 °~15 °.
The advantages of double suction centrifugal pump guide-vane choma of the present invention is：
1st, impeller and choma body are linked to be an entirety, and structural stability enhancing, makes water caused by water body in double suction centrifugal pump
Force vibration etc. weakens the action effect of impeller, reduces the collision and abrasion of impeller counterpart ring body, plays the work of protection choma
With, greatly reduce shut down replace choma frequency, improve production efficiency.
2nd, impeller and choma body are linked to be an entirety, reduce the collision and abrasion of impeller counterpart ring body, reduce machinery damage
Lose, meanwhile, avoid mouthful inner wall of ring body from producing excessive gap due to abrasion with impeller inlet outer rim, reduce high pressure water and pass through seam
Gap passes back into the water of impeller inlet, reduces leakage loss, improves the operational efficiency of double suction centrifugal pump.
3rd, double suction centrifugal pump guide-vane choma can improve the fluidised form of impeller for double suction centrifugal pump import, reduce the impact damage of incoming
Lose, improve the operational efficiency of double suction centrifugal pump；
4th, for silt carrying flow, double suction centrifugal pump guide-vane choma can improve the angle of attack of silt, reduce centrifugal pump leaf
The sand erosion of impeller blade head region, can extend impeller whole service life 500 it is small when more than；
5th, it is compact-sized, easy to promote.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the present invention；
Fig. 2 is the dimensional structure diagram of the present invention；
Fig. 3 is the present invention and the partial enlarged view of impeller inlet outer rim junction；
Fig. 4 is the schematic diagram of guide vane laying angle α；
Fig. 5 is the partial enlarged view of Fig. 4；
Fig. 6 is the overall structure diagram that the present invention is installed at impeller inlet.
Wherein：1 is choma body, and 2 be guide vane, and 3 be guide vane hub, and 4 be water guide cone, and 5 be bearing, and 6 be rear cover, and 7 be impeller,
8 be blade, and 9 be wheel hub, and 10 be retainer ring, and 11 be pump shaft, and 12 be pump case.
Embodiment
Embodiment one
Below in conjunction with the accompanying drawings, the present invention is further described.As shown in figures 1 to 6, a kind of double suction centrifugal pump of the present invention
Guide-vane choma, including choma body 1, guide vane 2 and guide vane hub 3,3 side of guide vane hub are provided with water guide cone 4, and guide vane hub 3 is another
Side is provided with rear cover 6, and bearing 5 is set in guide vane hub 3；Rear cover 6 connects simultaneously with the retainer ring 10 of 9 front end of wheel hub of 7 input end of impeller
Flush, the pump shaft 11 of impeller 7 sequentially pass through water guide cone 4, bearing 5 and rear cover 6 then impeller 7 and choma body 1 be linked to be one it is whole
Body.
1 inner wall of choma body is equidistantly equipped with 7 import outer rim of impeller, 1 inner wall of choma body and 7 import outer rim of impeller
Gap L be 0.5mm.
The blade 8 of the impeller 7 is 6, and guide vane 2 is 7 or 11.
2 one end of guide vane is connected to 1 inner wall of choma body, another to be terminated at guide vane hub 3.
The place direction and the angle α of the import vertical direction of impeller 7 of the guide vane 2 are 0 °.
Embodiment two
A kind of double suction centrifugal pump guide-vane choma of the present invention, including choma body 1, guide vane 2 and guide vane hub 3, guide vane hub 3 one
Side is provided with water guide cone 4, and 3 opposite side of guide vane hub is provided with rear cover 6, bearing 5 is set in guide vane hub 3；Rear cover 6 and 7 input end of impeller
The retainer ring 10 of 9 front end of wheel hub connect and flush, the pump shaft 11 of impeller 7 sequentially pass through water guide cone 4, bearing 5 and rear cover 6 after
And impeller 7 and choma body 1 are linked to be an entirety.
1 inner wall of choma body is equidistantly equipped with 7 import outer rim of impeller, 1 inner wall of choma body and 7 import outer rim of impeller
Gap L be 0.1mm.
The blade 8 of the impeller 7 is 8, and guide vane 2 is 11 or 13.
2 one end of guide vane is connected to 1 inner wall of choma body, another to be terminated at guide vane hub 3.
The place direction and the angle α of the import vertical direction of impeller 7 of the guide vane 2 are 15 °.
Claims (1)
- A kind of 1. double suction centrifugal pump guide-vane choma, it is characterised in that：Including choma body (1), guide vane (2) and guide vane hub (3), Guide vane hub (3) side is provided with water guide cone (4), and guide vane hub (3) opposite side is provided with rear cover (6), bearing (5) is set in guide vane hub 3； Rear cover (6) connects and flushes with the retainer ring (10) of wheel hub (9) front end of impeller (7) input end, the pump shaft (11) of impeller (7) Sequentially passing through water guide cone (4), bearing (5) and rear cover (6), then impeller (7) and choma body (1) are linked to be an entirety；The guide vane The piece number of the piece number of piece (2) more than the blade (8) of impeller (7)；(2) one end of guide vane is connected to choma body (1) inner wall, another It is terminated at guide vane hub (3)；The angle α of the placement direction of the guide vane (2) and the import vertical direction of impeller (7) for 0 °~ 15°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360536.9A CN105041719B (en) | 2015-06-26 | 2015-06-26 | A kind of double suction centrifugal pump guide-vane choma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360536.9A CN105041719B (en) | 2015-06-26 | 2015-06-26 | A kind of double suction centrifugal pump guide-vane choma |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105041719A CN105041719A (en) | 2015-11-11 |
| CN105041719B true CN105041719B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510360536.9A Active CN105041719B (en) | 2015-06-26 | 2015-06-26 | A kind of double suction centrifugal pump guide-vane choma |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795523A (en) * | 2016-09-05 | 2018-03-13 | 博世电动工具（中国）有限公司 | Air deflector and the electric tool for including it |
| CN107339261B (en) * | 2017-04-11 | 2023-09-15 | 宁波方太厨具有限公司 | Strong-suction multi-wing centrifugal fan |
| CN109915418A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A kind of blade extension type vertical centrifugal pump airflow fence and the centrifugal pump using the airflow fence |
| CN115071936B (en) * | 2021-03-15 | 2024-02-06 | 中国科学院沈阳自动化研究所 | Independently-driven three-stage underwater propeller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639085A (en) * | 2008-08-01 | 2010-02-03 | 清华大学 | Energy-saving device and energy-saving method by regulating front guide vanes of centrifugal pump |
| CN201810589U (en) * | 2010-10-14 | 2011-04-27 | 张仁田 | Tubular pump with movable guide vane at impeller entrance |
| CN201858161U (en) * | 2010-11-05 | 2011-06-08 | 浙江科尔泵业股份有限公司 | Horizontal axial suction sectional multistage high-pressure centrifugal pump |
| CN103790858A (en) * | 2014-03-07 | 2014-05-14 | 武汉大学 | Method for improving centrifugal pump impeller abrasive resistance |
-
2015
- 2015-06-26 CN CN201510360536.9A patent/CN105041719B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639085A (en) * | 2008-08-01 | 2010-02-03 | 清华大学 | Energy-saving device and energy-saving method by regulating front guide vanes of centrifugal pump |
| CN201810589U (en) * | 2010-10-14 | 2011-04-27 | 张仁田 | Tubular pump with movable guide vane at impeller entrance |
| CN201858161U (en) * | 2010-11-05 | 2011-06-08 | 浙江科尔泵业股份有限公司 | Horizontal axial suction sectional multistage high-pressure centrifugal pump |
| CN103790858A (en) * | 2014-03-07 | 2014-05-14 | 武汉大学 | Method for improving centrifugal pump impeller abrasive resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105041719A (en) | 2015-11-11 |
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