CN101936293A - Double-inlet large-flow multistage centrifugal pump - Google Patents
Double-inlet large-flow multistage centrifugal pump Download PDFInfo
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- CN101936293A CN101936293A CN 201010288509 CN201010288509A CN101936293A CN 101936293 A CN101936293 A CN 101936293A CN 201010288509 CN201010288509 CN 201010288509 CN 201010288509 A CN201010288509 A CN 201010288509A CN 101936293 A CN101936293 A CN 101936293A
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- pump
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- impeller
- centrifugal pump
- flow
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Abstract
The invention discloses a double-inlet large-flow multistage centrifugal pump which has the structural characteristics that a pump shaft is supported by a bearing body component, a discharge double suction impeller and a discharge section are installed in the middle part of the pump shaft, guide vanes, impellers, middle sections, first-stage double suction impellers and suction inlet components are respectively installed on both sides of the pump shaft, and all components are tightly connected into a whole be means of bolts. The entire water pump is symmetrically arranged with the water outlet of the discharge section of the pump as a center, the automatic balancing of axial force is realized, the abrasion and the damages of parts and components are reduced, the service life of the pump is prolonged, and the maintenance cost of user equipment is reduced. The flow of the pump is doubled by adopting the double suction inlet structure and the double suction impeller, and the requirement for large flow of the user is realized. The pump has a few parts, simple structure, low cost, long service life, large flow, high efficiency and smooth and reliable operating state.
Description
One, technical field
What the present invention relates to is a kind of multistage centrifugal pump, the big multistage flow centrifugal pump of especially a kind of two inlets.
Two, background technique
Current, the kind of pump has multiple, can be divided into other types pumps such as vane type oil pump, positive displacement pump by action principle.Centrifugal pump belongs to a kind of of vane type oil pump, is divided into single stage centrifugal pump and multistage centrifugal pump, and in order to increase lift and flow, it is wider general that multistage centrifugal pump uses.The existing multistage centrifugal pump of using, it all is single-suction centrifugal pump, its structure is to have only an inlet, the equidirectional mode of arranging in turn of all impellers is installed on the pump shaft, pump in use can produce axial force, usually adopt Balance disc or balancing drum to carry out balance to the processing of balancing axial thrust, but can't eliminate axial force fully at all, remaining axial force is born by bearing.Pump in use, bearing bears bigger axial force and damages easily, balanced controls wearing and tearing also can cause other rotor component wearing and tearing, thereby influence the normal working life of pump, often change the device maintenance expense that wear-out part has also increased the user.In addition, the single suction multistage centrifugal pump of an inlet has limited the flow of pump, can't realize big flow.
Three, summary of the invention
In order to solve the deficiencies in the prior art, the purpose of this invention is to provide a kind of big multistage flow centrifugal pump of two inlets of automatically balancing axial force.
Realize that the technological scheme that purpose of the present invention adopts is: this centrifugal pump mainly is made up of pump shaft, bearing body part, first-stage double-absorption impeller, impeller, stator, sucting inlet part, stage casing, spue double-entry impeller and Spit Section; Pump shaft is supported by bearing body part, and spue double-entry impeller and Spit Section are installed in the middle part of pump shaft, and its both sides are symmetrically installed with stator respectively successively, impeller, and the stage casing, first-stage double-absorption impeller and sucting inlet part, each parts connect as a whole by bolton.
The present invention's advantage compared with prior art is: the one, and whole water pump is that the center is in a symmetrical arrangement with the water outlet of the Spit Section of pump, thereby realize the autobalance of axial force, of damage of components and the wearing and tearing of existing multistage centrifugal pump have been avoided for realize that balancing axial thrust produces in operation process, prolong the working life of pump, reduced the customer equipment maintenance cost; Simultaneously, overcome the volumetric loss that operational system produced, improved pump efficiency.The 2nd, adopt double suction entrance structure and double-entry impeller, the flow of the pump that has been multiplied is realized user's big traffic demand.In a word, it is few, simple in structure that this multistage centrifugal pump and other multistage centrifugal pumps are compared part, and cost is low, long service life, and flow is big, the efficient height, running state is very steady reliable.
Four, description of drawings
Fig. 1 is the sectional structure chart of the big multistage flow centrifugal pump of the two inlets of the present invention.
Five, embodiment
In the accompanying drawings, the big multistage flow centrifugal pump of the two inlets of the present invention mainly is made up of pump shaft, bearing body part, first-stage double-absorption impeller, impeller, stator, sucting inlet part, stage casing, spue double-entry impeller and Spit Section; Pump shaft 1 is supported by bearing body part 2 and bearing body part 10, spue double-entry impeller 9 and Spit Section 8 is installed in the middle part of pump shaft 1, its both sides are symmetrically installed with stator 6 respectively successively, impeller 5, stage casing 7, first-stage double-absorption impeller 3 and sucting inlet part 4, each parts connect as a whole by bolton.This kind pump structure is a double suction inlet, and first-stage double-absorption impeller 3 is a double-sided impeller, and the double-entry impeller 9 that spues is the double suction formula impeller of going into to spue.When adopting first-stage double-absorption impeller 3 to increase inhalation flow, the flow that has also overcome single suction eye is subjected to the restriction of net positive suction head, can produce cavitation erosion, the deficiency of cisco unity malfunction along with flow increases water pump.The double-entry impeller 9 that spues of assembling can reduce the friction loss of disk on the pump shaft 1 at 8 places, Spit Section, further improves pump efficiency.
Claims (4)
1. big multistage flow centrifugal pump of two inlets mainly is made up of pump shaft, bearing body part, first-stage double-absorption impeller, impeller, stator, sucting inlet part, stage casing, spue double-entry impeller and Spit Section; It is characterized in that: pump shaft (1) is supported by bearing body part (2) and bearing body part (10), spue double-entry impeller (9) and Spit Section (8) are installed in the middle part of pump shaft (1), its both sides are symmetrically installed with stator (6) respectively successively, impeller (5), stage casing (7), first-stage double-absorption impeller (3) and sucting inlet part (4), each parts connect as a whole by bolton.
2. the big multistage flow centrifugal pump of two inlets as claimed in claim 1, it is characterized in that: described first-stage double-absorption impeller (3) is a double-sided impeller.
3. the big multistage flow centrifugal pump of two inlets as claimed in claim 1 is characterized in that: the described double-entry impeller that spues (9) is the double suction formula impeller of going into to spue.
4. the big multistage flow centrifugal pump of two inlets as claimed in claim 1 is characterized in that: pump structure is a double suction inlet formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288509 CN101936293A (en) | 2010-09-13 | 2010-09-13 | Double-inlet large-flow multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288509 CN101936293A (en) | 2010-09-13 | 2010-09-13 | Double-inlet large-flow multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101936293A true CN101936293A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010288509 Pending CN101936293A (en) | 2010-09-13 | 2010-09-13 | Double-inlet large-flow multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936293A (en) |
Cited By (3)
| 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 |
| CN106762854A (en) * | 2017-02-27 | 2017-05-31 | 江苏大学镇江流体工程装备技术研究院 | A kind of anti-cavitation double feed inlet double-suction multi-stage pump |
| CN113074136A (en) * | 2021-05-13 | 2021-07-06 | 天津赛鸥泵业有限公司 | Double suction pump water inflow water conservancy diversion integrator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061221U (en) * | 1990-01-19 | 1990-08-29 | 煤炭科学研究总院唐山分院 | Large-flow high-lift section type double-inlet sludge pump |
| CN2185816Y (en) * | 1993-10-06 | 1994-12-21 | 周忠良 | Non-axial force segmental type multi-stage centrifugal pump |
| CN1532422A (en) * | 2003-03-26 | 2004-09-29 | 陈云峰 | Radial strip back-to-balk multistage centrifugal pump |
| CN201381989Y (en) * | 2009-04-21 | 2010-01-13 | 重庆水泵厂有限责任公司 | Double-inlet self-balance multiple-stage centrifugal pump |
| CN101749250A (en) * | 2008-11-30 | 2010-06-23 | 大连深蓝泵业有限公司 | First-stage double-absorption section self-balanced multiple-stage centrifugal pump |
| CN201771783U (en) * | 2010-09-13 | 2011-03-23 | 赵景权 | Multilevel centrifugal pump with double inlets and mass flow |
-
2010
- 2010-09-13 CN CN 201010288509 patent/CN101936293A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061221U (en) * | 1990-01-19 | 1990-08-29 | 煤炭科学研究总院唐山分院 | Large-flow high-lift section type double-inlet sludge pump |
| CN2185816Y (en) * | 1993-10-06 | 1994-12-21 | 周忠良 | Non-axial force segmental type multi-stage centrifugal pump |
| CN1532422A (en) * | 2003-03-26 | 2004-09-29 | 陈云峰 | Radial strip back-to-balk multistage centrifugal pump |
| CN101749250A (en) * | 2008-11-30 | 2010-06-23 | 大连深蓝泵业有限公司 | First-stage double-absorption section self-balanced multiple-stage centrifugal pump |
| CN201381989Y (en) * | 2009-04-21 | 2010-01-13 | 重庆水泵厂有限责任公司 | Double-inlet self-balance multiple-stage centrifugal pump |
| CN201771783U (en) * | 2010-09-13 | 2011-03-23 | 赵景权 | Multilevel centrifugal pump with double inlets and mass flow |
Cited By (3)
| 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 |
| CN106762854A (en) * | 2017-02-27 | 2017-05-31 | 江苏大学镇江流体工程装备技术研究院 | A kind of anti-cavitation double feed inlet double-suction multi-stage pump |
| CN113074136A (en) * | 2021-05-13 | 2021-07-06 | 天津赛鸥泵业有限公司 | Double suction pump water inflow water conservancy diversion integrator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20110105 |