CN201377436Y - Structure for double-suction multistage horizontal split pump - Google Patents

Structure for double-suction multistage horizontal split pump Download PDF

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Publication number
CN201377436Y
CN201377436Y CN200920063893U CN200920063893U CN201377436Y CN 201377436 Y CN201377436 Y CN 201377436Y CN 200920063893 U CN200920063893 U CN 200920063893U CN 200920063893 U CN200920063893 U CN 200920063893U CN 201377436 Y CN201377436 Y CN 201377436Y
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CN
China
Prior art keywords
impeller
pump
double
level
suction
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.)
Expired - Fee Related
Application number
CN200920063893U
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Chinese (zh)
Inventor
康清权
盛轶
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.)
CHANGSHA PUMP WORKS Co Ltd
Original Assignee
CHANGSHA PUMP WORKS 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 CHANGSHA PUMP WORKS Co Ltd filed Critical CHANGSHA PUMP WORKS Co Ltd
Priority to CN200920063893U priority Critical patent/CN201377436Y/en
Application granted granted Critical
Publication of CN201377436Y publication Critical patent/CN201377436Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a structure for a double-suction multistage horizontal split pump. A casing pressurized water chamber comprising a pump body (7) and a pump cover (5) adopts a double-volute structure (8); the casing pressurized water chamber is provided with a secondary impeller (3) and a discharge nozzle (10) arranged perpendicularly to a shaft in the horizontal radial direction; the secondary impeller (3) is a double-suction impeller; a left primary impeller (2) and a right primary impeller (4) are mounted on a pump shaft (9) in a back-to-back manner; the left primary impeller (2) and the right primary impeller (4) are provided with a left suction inlet (12) and a right suction inlet (11) perpendicularly to the shaft in the horizontal radial direction respectively; flow channels between the left primary impeller (2) and the secondary impeller (3) as well as between the right primary impeller (4) secondary impeller (3) adopt radial diffusers; the discharge nozzle (10), the left suction inlet (12) and the right suction inlet (11) are both positioned below the pump shaft (9) and are cast into a whole with the pump body (7); and the pump body (7) and the pump cover (5) are connected through a horizontal split flange. The utility model is a structure for the double-suction multistage horizontal split pump, which has the advantages of convenient manufacture, convenient assembly and long service life.

Description

A kind of double-suction multi-stage horizontal type level middle-opening pump structure
Technical field
The utility model relates to a kind of water pump, particularly relates to a kind of double-suction multi-stage horizontal type level middle-opening pump structure.
Background technique
Present multistage horizontal type level middle-opening pump adopts an import water inlet and an outlet water flowing out structure, and casting is complicated, and the runner between first stage impeller and the secondary impeller adopts flow channel type, and complex structure exists the span of axle and the casting defect of pump case; Suction is positioned at the pump shaft below, and discharge opening is positioned at the pump shaft top, dismounting and maintenance inconvenience; Housing (comprising the pump housing, pump cover) pumping chamber adopts single worm frame, and balance is poor, has reduced the intensity and the balance of pump.
The model utility content
Technical problem to be solved in the utility model provides a kind of double-suction multi-stage horizontal type level middle-opening pump structure of easily manufactured, easy to assembly, long service life.
In order to solve the problems of the technologies described above, the double-suction multi-stage horizontal type level middle-opening pump structure that the utility model provides, comprise the pump housing, pump cover, pump shaft, by the described pump housing, the housing pumping chamber that pump cover is formed adopts the double volute structure, described housing pumping chamber is provided with secondary impeller and radially is provided with discharge opening with the axle vertical-horizontal, described secondary impeller is a double-entry impeller, described secondary impeller bilateral symmetry is provided with the left-hand side level impeller and right level impeller, described the left-hand side level impeller and right level impeller are taked back-to-back, and mode is installed on the described pump shaft, described the left-hand side level impeller and right level impeller radially are provided with left suction port and right suction port with the axle vertical-horizontal respectively, runner between described the left-hand side level impeller and right level impeller and the described secondary impeller adopts radially stator, described discharge opening, tell left suction port and right suction port all be positioned at described pump shaft below and with pump housing cast solid, the described pump housing, opening flange in the pump cover employing level connects, described pump shaft driven end adopts the supporting of double-row self-aligning spheric roller bearing, and drive end adopts the double-row conical bearing supporting.
Adopt the double-suction multi-stage horizontal type level middle-opening pump structure of technique scheme, its structure adopts two single-stage impellers radially to suck (being the water inlet of left suction port and right suction port) from the left and right semi-spiral respectively of the vertical side of axle, import the middle secondary double-entry impeller through stator radially, again from the vertical opposite side of axle by the spirality pumping chamber horizontal radial form (water spues promptly) that spues, it is high-lift at 100m~250m that this pump is mainly used in lift, on the water project of big flow, carry purposes as water conservancy irrigation and water conservancy.Because leafy wheel construction can reduce the lift of each grade impeller, reduce the impact wear of silt, so can be used for carrying the water of certain sediment charge to impeller.Its characteristics: reduce casting difficulty and defective and produce; Easy to assembly: as only need to unclamp bolt during maintenance, hang the turn on pump lid, need not tear the inlet/outlet pipeline open and can keep in repair; Long service life: reduced bearing span, but used the ball bearing of strong double-row conical bearing of bearing capacity and self-aligning, made pump operation more reliable.Use on the housing and strengthen gusset, increased the rigidity of pump, under high pressure amount of deformation is little to make housing.
In sum, the utility model is a kind of double-suction multi-stage horizontal type level middle-opening pump structure of easily manufactured, easy to assembly, long service life.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is a left view of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2 and Fig. 3, by the pump housing, the housing pumping chamber that pump cover is formed adopts the double volute structure, the housing pumping chamber is provided with secondary impeller and radially is provided with discharge opening with the axle vertical-horizontal, secondary impeller is a double-entry impeller, secondary impeller bilateral symmetry is provided with the left-hand side level impeller and right level impeller, the left-hand side level impeller and right level impeller are taked back-to-back, and mode is installed on the pump shaft, the left-hand side level impeller and right level impeller radially are provided with left suction port and right suction port with the axle vertical-horizontal respectively, runner between the left-hand side level impeller and right level impeller and the secondary impeller adopts radially stator, discharge opening, a left side suction port and right suction port all be positioned at the pump shaft below and with pump housing cast solid, the pump housing, opening flange in the pump cover employing level connects, the pump shaft driven end adopts the supporting of double-row self-aligning spheric roller bearing, and drive end adopts the double-row conical bearing supporting.
Referring to Fig. 1, Fig. 2 and Fig. 3, its structure adopts two single-stage impellers radially to suck (being the water inlet of left suction port and right suction port) from the left and right semi-spiral respectively of the vertical side of axle, import the middle secondary double-entry impeller through stator radially, again from the vertical opposite side of axle by the spirality pumping chamber horizontal radial form (water outlet promptly) that spues, adopt multi-stage impeller, reduce the lift of single-stage impeller, can reduce the merit that medium is done blade, reduced the wearing and tearing of impeller; Left side suction port and right suction port, discharge opening all are positioned at the pump shaft below, with the housing cast solid, open flange in the pump housing, the pump cover employing level and connect, open the flanged surface bolt in turning on, hang the turn on pump lid, need not dismantle pump inlet/outlet pipeline and motor, can hang out rotor part and overhaul; Housing (comprising the pump housing, pump cover) pumping chamber adopts the double volute structure, the radial force that produces in the balance movement, the intensity of increase pump.Chopped-off head two impellers are taked mode back-to-back, and secondary impeller is a double-entry impeller, and the axial force direction of generation is opposite, and so equal and opposite in direction is the energy automatically balancing axial force; Two suction flanges suck about employing, import of ratio is simple in structure toward the both direction water inlet, make casting easier, runner between first stage impeller and the secondary impeller adopts radially stator, cancelled traditional flow channel type, make structure compact more, can reduce the span of axle and the casting defect of pump case; Adopt center-adjusting sphere roller bearing bearing radial force, double-row conical bearing bears residual axial force, the thin oil lubricant mode, and bearing support is provided with water cooling chamber, band disc structure, can take away the heat that produces in the bearing running, increases bearing service life.

Claims (2)

1, a kind of double-suction multi-stage horizontal type level middle-opening pump structure, comprise the pump housing (7), pump cover (5), pump shaft (9), it is characterized in that: by the described pump housing (7), the housing pumping chamber that pump cover (5) is formed adopts double volute structure (8), described housing pumping chamber is provided with secondary impeller (3) and radially is provided with discharge opening (10) with the axle vertical-horizontal, described secondary impeller (3) is a double-entry impeller, described secondary impeller (3) bilateral symmetry is provided with the left-hand side level impeller (2) and right level impeller (4), described the left-hand side level impeller (2) and right level impeller (4) are taked back-to-back, and mode is installed on the described pump shaft (9), described the left-hand side level impeller (2) and right level impeller (4) radially are provided with left suction port (12) and right suction port (11) with the axle vertical-horizontal respectively, runner between described the left-hand side level impeller (2) and right level impeller (4) and the described secondary impeller (3) adopts radially stator, described discharge opening (10), tell left suction port (12) and right suction port (11) all be positioned at described pump shaft (9) below and with the described pump housing (7) cast solid, the described pump housing (7), opening flange in pump cover (5) the employing level connects.
2, double-suction multi-stage horizontal type level middle-opening pump structure according to claim 1 is characterized in that: described pump shaft (9) driven end adopts double-row self-aligning spheric roller bearing (6) supporting, and drive end adopts double-row conical bearing (1) supporting.
CN200920063893U 2009-03-31 2009-03-31 Structure for double-suction multistage horizontal split pump Expired - Fee Related CN201377436Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920063893U CN201377436Y (en) 2009-03-31 2009-03-31 Structure for double-suction multistage horizontal split pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920063893U CN201377436Y (en) 2009-03-31 2009-03-31 Structure for double-suction multistage horizontal split pump

Publications (1)

Publication Number Publication Date
CN201377436Y true CN201377436Y (en) 2010-01-06

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CN200920063893U Expired - Fee Related CN201377436Y (en) 2009-03-31 2009-03-31 Structure for double-suction multistage horizontal split pump

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102477998A (en) * 2010-11-30 2012-05-30 湖北双剑鼓风机制造有限公司 High-pressure high-flow flue gas desulfurization centrifugal draught fan
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
CN103133359A (en) * 2011-11-22 2013-06-05 上海连成(集团)有限公司 Multilevel submersible sewage pump for large-scale mining
CN103410785A (en) * 2013-08-06 2013-11-27 浙江三工汽车零部件有限公司 Automobile cooling water pump
CN104662302A (en) * 2013-07-05 2015-05-27 株式会社荏原制作所 Pump blade for submerged pump and submerged pump having same
CN106122032A (en) * 2016-08-29 2016-11-16 湖南长泵业有限公司 A kind of double feed inlet horizontal split-case centrifugal pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102477998A (en) * 2010-11-30 2012-05-30 湖北双剑鼓风机制造有限公司 High-pressure high-flow flue gas desulfurization centrifugal draught fan
CN103133359A (en) * 2011-11-22 2013-06-05 上海连成(集团)有限公司 Multilevel submersible sewage pump for large-scale mining
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
CN104662302A (en) * 2013-07-05 2015-05-27 株式会社荏原制作所 Pump blade for submerged pump and submerged pump having same
CN104662302B (en) * 2013-07-05 2017-11-28 株式会社荏原制作所 Immersible pump pump blade and the immersible pump with the pump blade
CN103410785A (en) * 2013-08-06 2013-11-27 浙江三工汽车零部件有限公司 Automobile cooling water pump
CN106122032A (en) * 2016-08-29 2016-11-16 湖南长泵业有限公司 A kind of double feed inlet horizontal split-case centrifugal pump

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Hu'nan XEMC Changsha Pump Works Co., Ltd.

Assignor: Changsha Pump Works Co., Ltd.

Contract record no.: 2010430000083

Denomination of utility model: Structure for double-suction multistage horizontal split pump

Granted publication date: 20100106

License type: Exclusive License

Record date: 20100727

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100106

Termination date: 20170331