CN106122032A - A kind of double feed inlet horizontal split-case centrifugal pump - Google Patents

A kind of double feed inlet horizontal split-case centrifugal pump Download PDF

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Publication number
CN106122032A
CN106122032A CN201610745446.6A CN201610745446A CN106122032A CN 106122032 A CN106122032 A CN 106122032A CN 201610745446 A CN201610745446 A CN 201610745446A CN 106122032 A CN106122032 A CN 106122032A
Authority
CN
China
Prior art keywords
pump
impeller
stage
double
pump housing
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.)
Pending
Application number
CN201610745446.6A
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Chinese (zh)
Inventor
吴哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Long Pump Industry Co Ltd
Original Assignee
Hunan Long Pump Industry Co Ltd
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 Hunan Long Pump Industry Co Ltd filed Critical Hunan Long Pump Industry Co Ltd
Priority to CN201610745446.6A priority Critical patent/CN106122032A/en
Publication of CN106122032A publication Critical patent/CN106122032A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06Multi-stage pumps
    • F04D1/08Multi-stage pumps the stages being situated concentrically
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/20Mounting rotors on shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes

Abstract

The invention discloses a kind of double feed inlet horizontal split-case centrifugal pump, including the pump housing, pump cover, sealed by gland between the pump housing and pump cover, it is characterized in that, a water sucking mouth it is respectively arranged with at the two ends of the same side of the pump housing, outlet is at pump housing opposite side and is positioned at axial central authorities, first-stage double suction impeller and secondary impeller it is provided with inside pump, water sucking mouth connects first-stage double suction impeller, first-stage double suction impeller reconnects secondary impeller, first stage impeller and secondary impeller are fixed by sealing ring, two back-to-back settings of first-stage double suction impeller.This centrifugal pump is equivalent to two double entry pumps and is connected in parallel and works simultaneously, all can increase at same double-suction pump impeller external diameter down-off lift and be twice;Import and export in the same direction and be perpendicular to pump shaft, beneficially pump and the layout of water inlet pipe and water outlet pipe and installation;Blade wheel structure is symmetrical, does not has axial force, operates steadily.

Description

A kind of double feed inlet horizontal split-case centrifugal pump
Technical field
The present invention relates to centrifugal pump field, particularly relate to a kind of double feed inlet horizontal split-case centrifugal pump.
Background technology
Middle-opening pump is a kind of a large amount of wide workalike equipment, and it is widely used in oil, chemical industry, electric power smelting Gold, mine, select ship, light industry, agricultural, civilian and national defence all departments, occupy an important position in national economy.The master of middle-opening pump The flow of pumped (conveying) medium to be characterized as is big, the operation principle that lift middle-opening pump runs: impeller is arranged in pump case, and is fastened on pump On axle, pump shaft is directly driven by motor.Pump case central authorities have a liquid suction to be connected with suction tube.Liquid enters through bottom valve and suction tube Enter in pump.Liquid outlet on pump case is connected with discharge pipe.When rotating speed one timing of pump, its pressure head, flow and impeller diameter Relevant.But the lift of the middle-opening pump of currently available technology and flow still suffer from the space that can promote, flow high-lift, big is always The focus pursued in industry.
Summary of the invention
For solving at least one problem above-mentioned that existing centrifugal pump exists, present invention is primarily targeted at raising a kind of big Flow, high-lift double feed inlet horizontal split-case centrifugal pump.
For achieving the above object, the present invention provides techniques below scheme:
A kind of double feed inlet horizontal split-case centrifugal pump, including the pump housing, pump cover, carries out close by gland between the pump housing and pump cover Envelope, is respectively arranged with a water sucking mouth at the two ends of the same side of the pump housing, and outlet is at pump housing opposite side and is positioned at axial central authorities, inside pump Being provided with first-stage double suction impeller and secondary impeller, water sucking mouth connects first-stage double suction impeller, and first-stage double suction impeller reconnects secondary leaf Taking turns, first stage impeller and secondary impeller are fixed by sealing ring, two back-to-back settings of first-stage double suction impeller.
Further, being provided with double stator inside described pump cover, stator is symmetrical along vertical center axis, and stator is provided with leads Leaf set.
Further, the intracavity of the described pump housing and pump cover composition is packing seal, is additionally provided with and installs with filler water seal dress The packing ring coordinated is wanted in hole.
Further, also include that rotor part, described rotor part include axle and impeller interstage sleeve, be used for fixing first-stage double-absorption Impeller and secondary impeller, be additionally provided with axle two ends and be equipped with pump shaft coupling, and pump shaft coupling is connected with parts of bearings, and axle is additionally provided with dash Circle, described retaining ring is between impeller and parts of bearings.
The method have the advantages that two suction inlets of (1) pump and outlet drive pump below face with being respectively positioned in pump Shell bottom, is horizontally located at both sides and becomes vertical direction with axial line, need not pull down motor and pipeline during maintenance, operate the most square Just;(2) water sucking mouth of pump and outlet are all under the vertical lower of axis, same rotating speed and flow, because reducing inlet velocity, pump Being not susceptible to cavitation, this form directly affects into water direction, is equivalent to be combined, simultaneously by two horizontally-opposed impellers The current flowed out from impeller import a spiral case, go into higher-pressure region;(3) it is equivalent to two double entry pumps and is connected in parallel simultaneously Work, all can increase at same double-suction pump impeller external diameter down-off lift and be twice;(4) import and export in the same direction and vertically Layout and installation in pump shaft, beneficially pump and water inlet pipe and water outlet pipe;(5) blade wheel structure is symmetrical, can well balance single single-suction (single-in let) impeller The axial force produced because of lateral pressure difference before and after the back shroud at suction inlet, does not has axial force, runs more steady.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used does simple introduction, it should be apparent that, the accompanying drawing in describing below is the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to These accompanying drawings obtain other accompanying drawing.
Accompanying drawing 1 is the profile of the embodiment of the present invention;
Accompanying drawing 2 is the left view of the embodiment of the present invention;
Accompanying drawing 3 is the axonometric chart of the embodiment of the present invention;
Accompanying drawing 4 is the rotor part structural representation of the embodiment of the present invention.
In accompanying drawing 1,1 is the pump housing, and 2 is pump cover, and 3 is gland, and 4 is sealing ring, and 5 is sealing ring, and 6 is stator, and 7 is to lead Leaf, 8 is guide blade sleeve, and 9 is rotor part, and 10 is packing ring;11 is axle, and 12 is impeller interstage sleeve, and 13 is impeller interstage sleeve, and 14 is chopped-off head Double-entry impeller, 15 is first-stage double suction impeller, and 16 is secondary impeller, and 17 is packing sleeve, and 18 is parts of bearings first, and 19 is bearing portion Part second, 20 is retaining ring, and 21 is pump shaft coupling.
Detailed description of the invention
Below by specific embodiment, the present invention is further illustrated.
A kind of double feed inlet horizontal split-case centrifugal pump, as shown in Figures 1 and 2, including the pump housing 1, pump cover 2, the pump housing with Being sealed by gland 3 between pump cover, be respectively arranged with a water sucking mouth at the two ends of the same side of the pump housing, outlet is at the pump housing Opposite side and be positioned at axial central authorities, is provided with first-stage double suction impeller and secondary impeller inside pump, water sucking mouth connects first-stage double-absorption leaf Wheel, first-stage double suction impeller is reconnected secondary impeller, first stage impeller and secondary impeller and is fixed by sealing ring 4,5, two head The level back-to-back setting of double-entry impeller.
Wherein, being provided with double stator 6,7 inside pump cover, stator is symmetrical along vertical center axis, and stator is provided with guide blade sleeve 8。
Wherein, the intracavity of the pump housing and pump cover composition is packing seal, is additionally provided with and wants to coordinate with filler water seal dress installing hole Packing ring 10.Including pad bearing 17.
Wherein, also including rotor part 9, as shown in Figure 4, described rotor part includes axle 11 and impeller interstage sleeve 13, uses In fixing first-stage double suction impeller 14,15 and secondary impeller 16, being additionally provided with axle two ends and be equipped with pump shaft coupling 21, pump shaft coupling is connected with Parts of bearings 18,19, axle is additionally provided with retaining ring 20, and described retaining ring is between impeller and parts of bearings.
Principle and the embodiment of the present invention are set forth by specific embodiment used herein, above example Method and the core concept thereof being only intended to help to understand the present invention is described.The above is only the side of being preferable to carry out of the present 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, it is also possible to make some improvement, retouch or change, also Above-mentioned technical characteristic can be combined by rights;These improve retouching, change or combine, or the most improved general is sent out Bright design and technical scheme directly apply to other occasion, are regarded as protection scope of the present invention.

Claims (4)

1. a double feed inlet horizontal split-case centrifugal pump, including the pump housing, pump cover, is carried out by gland between the pump housing and pump cover Seal, it is characterised in that be respectively arranged with a water sucking mouth at the two ends of the same side of the pump housing, outlet is at pump housing opposite side and is positioned at axle Being provided with first-stage double suction impeller and secondary impeller inside central authorities, pump, water sucking mouth connects first-stage double suction impeller, first-stage double suction impeller Reconnecting secondary impeller, first stage impeller and secondary impeller be fixed by sealing ring, and two first-stage double suction impellers are back-to-back to be set Put.
Double feed inlet horizontal split-case centrifugal pump the most according to claim 1, it is characterised in that be provided with double inside described pump cover Stator, stator is symmetrical along vertical center axis, and stator is provided with guide blade sleeve.
Double feed inlet horizontal split-case centrifugal pump the most according to claim 1, it is characterised in that the described pump housing and pump cover composition Intracavity be packing seal, be additionally provided with and want, with filler water seal dress installing hole, the packing ring that coordinates.
4. according to the double feed inlet horizontal split-case centrifugal pump described in any one of claim 1-3, it is characterised in that also include rotor Parts, described rotor part includes axle and impeller interstage sleeve, is used for fixing first-stage double suction impeller and secondary impeller, is additionally provided with axle two ends Being equipped with pump shaft coupling, pump shaft coupling is connected with parts of bearings, and axle is additionally provided with retaining ring, and described retaining ring is positioned at impeller and bearing Between parts.
CN201610745446.6A 2016-08-29 2016-08-29 A kind of double feed inlet horizontal split-case centrifugal pump Pending CN106122032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610745446.6A CN106122032A (en) 2016-08-29 2016-08-29 A kind of double feed inlet horizontal split-case centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610745446.6A CN106122032A (en) 2016-08-29 2016-08-29 A kind of double feed inlet horizontal split-case centrifugal pump

Publications (1)

Publication Number Publication Date
CN106122032A true CN106122032A (en) 2016-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610745446.6A Pending CN106122032A (en) 2016-08-29 2016-08-29 A kind of double feed inlet horizontal split-case centrifugal pump

Country Status (1)

Country Link
CN (1) CN106122032A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762678A (en) * 2017-02-10 2017-05-31 长沙佳能通用泵业有限公司 A kind of horizontal middle open type parallel connection multistage pump
JP2020002948A (en) * 2018-06-22 2020-01-09 株式会社荏原製作所 Double suction volute pump
CN113250964A (en) * 2021-07-05 2021-08-13 安徽埃斯克制泵有限公司 Damping type middle-open double-suction pump and working method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2523989Y (en) * 2001-08-03 2002-12-04 沈阳市工业泵厂 Multi-stage centrifugal oil pump with axially middle openings
CN2583402Y (en) * 2002-12-05 2003-10-29 沈阳市赛信动力设备有限公司 Double absorption midle-opening centrifugal pump
CN201246345Y (en) * 2008-09-12 2009-05-27 常州东申泵业有限公司 Double-suction split pump
CN201277198Y (en) * 2008-09-12 2009-07-22 常州东申泵业有限公司 Multi-stage double-suction split pump
CN201292983Y (en) * 2008-09-12 2009-08-19 常州东申泵业有限公司 Double suction split pump
CN201377436Y (en) * 2009-03-31 2010-01-06 长沙水泵厂有限公司 Structure for double-suction multistage horizontal split pump
KR20150112243A (en) * 2014-03-27 2015-10-07 이응수 Double suction type centrifugal pump
CN206111570U (en) * 2016-08-29 2017-04-19 湖南长一泵业有限公司 Double feed inlet horizontal split -case centrifugal pump

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2523989Y (en) * 2001-08-03 2002-12-04 沈阳市工业泵厂 Multi-stage centrifugal oil pump with axially middle openings
CN2583402Y (en) * 2002-12-05 2003-10-29 沈阳市赛信动力设备有限公司 Double absorption midle-opening centrifugal pump
CN201246345Y (en) * 2008-09-12 2009-05-27 常州东申泵业有限公司 Double-suction split pump
CN201277198Y (en) * 2008-09-12 2009-07-22 常州东申泵业有限公司 Multi-stage double-suction split pump
CN201292983Y (en) * 2008-09-12 2009-08-19 常州东申泵业有限公司 Double suction split pump
CN201377436Y (en) * 2009-03-31 2010-01-06 长沙水泵厂有限公司 Structure for double-suction multistage horizontal split pump
KR20150112243A (en) * 2014-03-27 2015-10-07 이응수 Double suction type centrifugal pump
CN206111570U (en) * 2016-08-29 2017-04-19 湖南长一泵业有限公司 Double feed inlet horizontal split -case centrifugal pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762678A (en) * 2017-02-10 2017-05-31 长沙佳能通用泵业有限公司 A kind of horizontal middle open type parallel connection multistage pump
CN106762678B (en) * 2017-02-10 2018-05-08 长沙佳能通用泵业有限公司 A kind of horizontal middle open type parallel connection multistage pump
JP2020002948A (en) * 2018-06-22 2020-01-09 株式会社荏原製作所 Double suction volute pump
CN113250964A (en) * 2021-07-05 2021-08-13 安徽埃斯克制泵有限公司 Damping type middle-open double-suction pump and working method thereof

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C10 Entry into substantive examination
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Application publication date: 20161116

RJ01 Rejection of invention patent application after publication