CN103775389A - Radial guide blade for sectional multistage pump - Google Patents

Radial guide blade for sectional multistage pump Download PDF

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Publication number
CN103775389A
CN103775389A CN201410010977.1A CN201410010977A CN103775389A CN 103775389 A CN103775389 A CN 103775389A CN 201410010977 A CN201410010977 A CN 201410010977A CN 103775389 A CN103775389 A CN 103775389A
Authority
CN
China
Prior art keywords
blade
guide blade
short
guide vane
bodies
Prior art date
Application number
CN201410010977.1A
Other languages
Chinese (zh)
Inventor
张生昌
邓鸿英
马艺
马中强
张志鸿
Original Assignee
浙江工业大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江工业大学 filed Critical 浙江工业大学
Priority to CN201410010977.1A priority Critical patent/CN103775389A/en
Publication of CN103775389A publication Critical patent/CN103775389A/en

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Abstract

The invention provides a radial guide blade for a sectional multistage pump. The radial guide blade for the sectional multistage pump comprises a forward guide blade, an annular space and a backward guide blade. The backward guide blade is arranged in the mode that long blade bodies and short blade bodies are arranged at intervals, the long blade bodies of the backward guide blade and the short blade bodies of the backward guide blade are equal in number, the short blade bodies are placed in a backward guide blade inlet, and each short blade body is arranged between every two adjacent long blade bodies. When liquid flows through the forward guide blade and enters the backward guide blade through the annular space, the backward guide blade with the long blade bodies and the short blade bodies can reduce the speed of the liquid, the rotational component of the liquid is further eliminated, and the turbulence energy of the liquid is reduced, so that hydraulic loss is reduced and the performance of a centrifugal pump is improved.

Description

Radially stator of sectional type multi-stage pump

Technical field

The present invention relates to Fluid Machinery and Engineering equipment technical field, particularly radially stator of a kind of sectional type multi-stage pump.

Background technique

Multistage centrifugal pump is compared with single stage centrifugal pump, can meet more high-lift requirement, at present, multistage centrifugal pump is widely used in the fields such as mine, factory and urban water supply and sewerage, sectional type multi-stage pump belongs to the one of multistage pump, in sectional type multi-stage pump, adopt radial stator and flow channel type guide blade more, and wherein common with radial stator.Conventional radially stator, in the time that liquid enters return guide vane via annular space, velocity jump, has larger rotational component, causes whirlpool and causes hydraulic loss, has reduced thus the performance index such as efficiency of centrifugal pump.

Summary of the invention

For overcoming the deficiencies in the prior art part, the invention provides a kind of rational in infrastructure, radially stator that can effectively improve sectional multi-stage centrifugal pump performance.

Stator radially for sectional type multi-stage pump, is characterized in that: return guide vane adopts deviated splitter vane interval to arrange, the long and short number of blade of return guide vane equates, and short blade is placed on return guide vane ingress, in two adjacent linear leaf neutral positions, short blade is set.

The linear leaf of described return guide vane and short blade number are 6.

The present invention, to effectively reduce the tubulence energy in annular space, reduces whirlpool, thereby reduces hydraulic loss.

The invention has the beneficial effects as follows: when liquid is through guide vane, while entering return guide vane by annular space, the return guide vane with deviated splitter vane can reduce liquid velocity, further eliminate liquid in rotation component, reduce liquid tubulence energy, and then reduce hydraulic loss, improve centrifugal pump performance.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the structural representation of the embodiment of the present invention.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

1. guide vanes in figure, the 2. linear leaf of return guide vane, the 3. short blade of return guide vane, 4. annular space.

Embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

Radially stator of a kind of sectional multi-stage centrifugal pump, as depicted in figs. 1 and 2, this stator comprises the linear leaf 2 of guide vane 1, return guide vane, short blade 3 and the annular space 4 of return guide vane to its structure.Return guide vane of the present invention adopts deviated splitter vane interval to arrange, the long and short number of blade of return guide vane of the present embodiment is 6, and short blade 3 is placed on return guide vane ingress, in two adjacent linear leaf 2 neutral positions, short blade is set, can effectively reduce the tubulence energy in annular space, reduce whirlpool, thereby reduce hydraulic loss.

Claims (2)

1. stator radially for sectional type multi-stage pump, is characterized in that: return guide vane adopts deviated splitter vane interval to arrange, the long and short number of blade of return guide vane equates, and short blade is placed on return guide vane ingress, in two adjacent linear leaf neutral positions, short blade is set.
2. radially stator of sectional type multi-stage pump as claimed in claim 1, is characterized in that: the linear leaf of described return guide vane and short blade number are 6.
CN201410010977.1A 2014-01-09 2014-01-09 Radial guide blade for sectional multistage pump CN103775389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410010977.1A CN103775389A (en) 2014-01-09 2014-01-09 Radial guide blade for sectional multistage pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410010977.1A CN103775389A (en) 2014-01-09 2014-01-09 Radial guide blade for sectional multistage pump

Publications (1)

Publication Number Publication Date
CN103775389A true CN103775389A (en) 2014-05-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410010977.1A CN103775389A (en) 2014-01-09 2014-01-09 Radial guide blade for sectional multistage pump

Country Status (1)

Country Link
CN (1) CN103775389A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074804A (en) * 2014-07-11 2014-10-01 君禾泵业股份有限公司 Flow guide disk of multistage impeller centrifugal pump
CN105909526A (en) * 2016-04-19 2016-08-31 湖南天奥星泵业有限公司 Radial dissection two-end support type four-stage centrifugal pump
CN106812726A (en) * 2016-12-29 2017-06-09 西安航天泵业有限公司 A kind of multistage centrifugal pump
CN109989943A (en) * 2019-04-18 2019-07-09 江苏大学 A kind of multistage pump return guide vane splitterr vanes and design method
CN110081024A (en) * 2019-03-25 2019-08-02 沈阳鼓风机集团股份有限公司 A kind of multistage centrifugal pump and its processing method
CN110173385A (en) * 2019-05-27 2019-08-27 浙江富春江水电设备有限公司 A kind of band guide vane ultrahigh water head section francis turbine runner design method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201090529Y (en) * 2007-08-14 2008-07-23 上海连成(集团)有限公司 Novel multi-stage pump guide blade
CN101307768A (en) * 2007-05-17 2008-11-19 通用电气公司 Centrifugal compressor return passages using splitter vanes
CN201627761U (en) * 2009-09-08 2010-11-10 上海熊猫机械(集团)有限公司 Multistage pump centrifugal pump guide vane
JP4951418B2 (en) * 2007-06-01 2012-06-13 株式会社日立産機システム Multistage centrifugal pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101307768A (en) * 2007-05-17 2008-11-19 通用电气公司 Centrifugal compressor return passages using splitter vanes
JP4951418B2 (en) * 2007-06-01 2012-06-13 株式会社日立産機システム Multistage centrifugal pump
CN201090529Y (en) * 2007-08-14 2008-07-23 上海连成(集团)有限公司 Novel multi-stage pump guide blade
CN201627761U (en) * 2009-09-08 2010-11-10 上海熊猫机械(集团)有限公司 Multistage pump centrifugal pump guide vane

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074804A (en) * 2014-07-11 2014-10-01 君禾泵业股份有限公司 Flow guide disk of multistage impeller centrifugal pump
CN105909526A (en) * 2016-04-19 2016-08-31 湖南天奥星泵业有限公司 Radial dissection two-end support type four-stage centrifugal pump
CN106812726A (en) * 2016-12-29 2017-06-09 西安航天泵业有限公司 A kind of multistage centrifugal pump
CN110081024A (en) * 2019-03-25 2019-08-02 沈阳鼓风机集团股份有限公司 A kind of multistage centrifugal pump and its processing method
CN109989943A (en) * 2019-04-18 2019-07-09 江苏大学 A kind of multistage pump return guide vane splitterr vanes and design method
CN110173385A (en) * 2019-05-27 2019-08-27 浙江富春江水电设备有限公司 A kind of band guide vane ultrahigh water head section francis turbine runner design method

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Application publication date: 20140507

C12 Rejection of a patent application after its publication