CN205446056U - Inspiratory horizontal multistage centrifugal pump of axial - Google Patents

Inspiratory horizontal multistage centrifugal pump of axial Download PDF

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Publication number
CN205446056U
CN205446056U CN201620147702.7U CN201620147702U CN205446056U CN 205446056 U CN205446056 U CN 205446056U CN 201620147702 U CN201620147702 U CN 201620147702U CN 205446056 U CN205446056 U CN 205446056U
Authority
CN
China
Prior art keywords
axle
impeller
inducer
centrifugal pump
seal
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
CN201620147702.7U
Other languages
Chinese (zh)
Inventor
赵立盛
张骏
刘继杰
隋治和
冯小侠
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.)
DALIAN SONGLONE PUMP Manufacturing Co Ltd
Original Assignee
DALIAN SONGLONE PUMP Manufacturing 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 DALIAN SONGLONE PUMP Manufacturing Co Ltd filed Critical DALIAN SONGLONE PUMP Manufacturing Co Ltd
Priority to CN201620147702.7U priority Critical patent/CN205446056U/en
Application granted granted Critical
Publication of CN205446056U publication Critical patent/CN205446056U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an inspiratory horizontal multistage centrifugal pump of axial, belongs to multistage suction pump technical field. This multistage centrifugal pump includes inducer, middle impeller section and export section, and the bearing box is connected with the export section, is equipped with mechanical seal and quiet ring in the seal. The axle runs through bearing case to inducer, one end and the bearing fit of position of axle in the bearing box, and the other end of axle and the axle bush cooperation that lies in the inducer, three impeller passes through the impeller key and establishes ties epaxial for balanced liquid assaults axial equilibrium of forces drum that the impeller produced and balance drum cover and installs epaxial at the impeller end. This multistage centrifugal pump reforms transform the inducer, can realize that the axial inhales, adds the production that rotatory muscle can prevent the vortex in the import department. Adopt the axle bush and the both ends of bearing box to support, can optimize structure, reduce bulk, reduce the processing degree of difficulty. But adopt serial -type mechanical seal balanced seal chamber pressure, play sealed effect effectual more. The device simple structure, convenient to use, facilitate promotion.

Description

A kind of horizontal multi-stage centrifugal pump of axial suction
Technical field
This utility model relates to the horizontal multi-stage centrifugal pump of a kind of axial suction, belongs to multistage suction pump technical field.
Background technology
In the prior art, general horizontal multi-stage centrifugal pump uses and radially sucks, and by two bearing housing support shafts, uses the double mechanical seal being mounted opposite.The when of when job site because many reasons cannot realize radially sucking, original design can bring the biggest inconvenience to scene, it is possible that situations below: one, cause pump to install owing to space problem cannot change pipeline direction, if two change directions may spend more fund, increase cost, three, may require that manufacturer's size according to response condition change pump when in-site installation condition does not allows, can make troubles to manufacturer, also can accordingly increase cost.The design of original two bearing housings of employing can make structure complicate, and not only manufacturing cost increases, and also can increase the difficulty of manufacture, and the space shared by the pump housing also can increase.The double mechanical seal being mounted opposite is applicable to carry high-temp liquid, but cannot the pressure in balanced seal chamber, the pressure of external cooling water can be had special requirement.These defects of visible original design can give design, produces, and manufactures, and construction brings very big inconvenience, needs to replace with a kind of novel product.
Summary of the invention
For the problem overcoming existing horizontal multi-stage centrifugal pump to exist, this utility model provides the horizontal multi-stage centrifugal pump of a kind of axial suction, owing to original horizontal multi-stage centrifugal pump is to use two bearing housings to carry out two ends support, therefore after making into axially to suck, one end bearing housing supports, and the other end is then installed axle bush in import department and supported.Thus simplify structure, it is achieved axially suck.
The technical solution used in the present invention is: the horizontal multi-stage centrifugal pump of a kind of axial suction, it includes that an inducer, multiple intermediate impeller section and an outlet section, described inducer, multiple intermediate impeller section and outlet section are fixed together by rod and rod nut;Bearing housing is connected with outlet section by bolt with seal, is provided with mechanical seal and stationary ring in seal;Axle runs through bearing housing to inducer, and axle is positioned at one end and the bearing fit of bearing housing, and the outside of bearing is provided with back-up ring and outside framework oil seal, and the other end of axle coordinates with the axle bush being positioned at inducer, with the first bolt, gland is pushed down axle bush;Multiple impellers are connected on axle by impeller key, and the balancing drum of axial force produced for balancing liquid impact impeller and balancing drum set are arranged on the axle of impeller tip, and the card ring cowling compressing snap ring is connected on balancing drum by interior hexagonal round head screw.
The invention has the beneficial effects as follows: the horizontal multi-stage centrifugal pump of this axial suction includes inducer, multiple intermediate impeller section and outlet section, and bearing housing is connected with outlet section, is provided with mechanical seal and stationary ring in seal.Axle runs through bearing housing to inducer, axle is positioned at one end and the bearing fit of bearing housing, the other end of axle coordinates with the axle bush being positioned at inducer, multiple impellers are connected on axle by impeller key, and the balancing drum of axial force produced for balancing liquid impact impeller and balancing drum set are arranged on the axle of impeller tip.Inducer is transformed by this centrifugal multistage pump multiple centrifugal pump, can realize axially sucking, and adds rotation muscle in import department and can prevent the generation of eddy current.Use axle bush to support with the two ends of bearing housing, structure can be optimized, reduce bulk, reduce difficulty of processing.Use tandem mechanical seal can balanced seal cavity pressure, play significantly more efficient sealing function.This apparatus structure is simple, easy to use, it is simple to promote.
Accompanying drawing explanation
Fig. 1 is the structure chart of the horizontal type multi-stage pump of a kind of axial suction.
In figure: 1, inducer, 2, axle bush, 3, rod, 4, rod nut, 5, gland, the 6, first bolt, 7, stator, 8, impeller, 9, intermediate impeller section, 10, straight pin, 11, alignment pin, 12, outlet section, 13, balancing drum set, 14, balancing drum, 15, seal, 16, card ring cowling, 17, bearing housing, 18, axle sleeve, 19, back-up ring, 20, round nut, 21, outside framework oil seal, 22, axle, 23, bearing, the 24, second bolt, 25, stationary ring, 26, mechanical seal, 27, snap ring, 28, hexagon socket cap head screw, 29, impeller key.
Detailed description of the invention
Fig. 1 shows the figure of the horizontal multi-stage centrifugal pump of a kind of axial suction.In figure, the horizontal multi-stage centrifugal pump of this axial suction includes that 1, two intermediate impeller sections 9 of an inducer and an outlet section 12,1, two intermediate impeller sections 9 of inducer and outlet section 12 are fixed together by rod 3 and rod nut 4.Bearing housing 17 is connected with outlet section 12 by bolt with seal 15, is provided with mechanical seal 26 and stationary ring 25 in seal 15;Axle 22 runs through bearing housing 17 to inducer 1, axle 22 is positioned at one end of bearing housing 17 and coordinates with bearing 23, the outside of bearing 23 is provided with back-up ring 19 and outside framework oil seal 21, and the other end of axle 22 coordinates with the axle bush 2 being positioned at inducer 1, pushes down axle bush 2 with 6 glands 5 of the first bolt;Three impellers 8 are connected on axle 22 by impeller key 29, the balancing drum 14 and the balancing drum that impact the axial force of impeller generation for balancing liquid overlap 13 axles 22 being arranged on impeller 8 end, and the card ring cowling 16 compressing snap ring 27 is connected on balancing drum 14 by interior hexagonal round head screw 28.
When using technique scheme, inducer 1, intermediate impeller section 9 and outlet section 12 are tightened together by rod 3 and rod nut 4.Bearing housing 17 and seal 15 are locked on outlet section 12 by bolt.One end axle bush 2 of axle supports, and other end bearing 23 supports.Impeller 8 is fixed on axle 22 by impeller key 29.The axial force produced owing to liquid sucks is balanced by the balancing drum 14 being arranged on impeller 8 back.The mechanical seal 26 of series connection is arranged on seal 15.Operationally, liquid is entered housing by inducer 1 to horizontal multi-stage centrifugal pump, enters stator 7 through first stage impeller, stator 7 inserts the liquid into next stage, and final liquid is discharged from outlet section 12.Horizontal multi-stage centrifugal pump generally uses the dual-support structure radially sucked.Use the structure axially sucked, can to a certain degree solve the problem that user cannot realize axially sucking when designing pipeline.Inducer 1 makes supporting construction, is possible not only to replace the effect of bearing housing, makes structure simplify, it is also possible to suppress the generation of eddy current to a certain extent, reduce cost, improves efficiency.

Claims (1)

1. the horizontal multi-stage centrifugal pump of an axial suction, it includes an inducer (1), multiple intermediate impeller section (9) and an outlet section (12), it is characterised in that: described inducer (1), multiple intermediate impeller section (9) and outlet section (12) are fixed together by rod (3) and rod nut (4);Bearing housing (17) is connected with outlet section (12) by bolt with seal (15), is provided with mechanical seal (26) and stationary ring (25) in seal (15);Axle (22) runs through bearing housing (17) to inducer (1), axle (22) is positioned at one end of bearing housing (17) and coordinates with bearing (23), the outside of bearing (23) is provided with back-up ring (19) and outside framework oil seal (21), the other end of axle (22) coordinates with the axle bush (2) being positioned at inducer (1), with the first bolt (6), gland (5) is pushed down axle bush (2);Multiple impellers (8) are connected on axle (22) by impeller key (29), the balancing drum (14) of axial force produced for balancing liquid impact impeller and balancing drum set (13) are arranged on the axle (22) of impeller (8) end, compress the card ring cowling (16) of snap ring (27) and pass through interior hexagonal round head screw (28) and be connected on balancing drum (14).
CN201620147702.7U 2016-02-29 2016-02-29 Inspiratory horizontal multistage centrifugal pump of axial Expired - Fee Related CN205446056U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620147702.7U CN205446056U (en) 2016-02-29 2016-02-29 Inspiratory horizontal multistage centrifugal pump of axial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620147702.7U CN205446056U (en) 2016-02-29 2016-02-29 Inspiratory horizontal multistage centrifugal pump of axial

Publications (1)

Publication Number Publication Date
CN205446056U true CN205446056U (en) 2016-08-10

Family

ID=56604172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620147702.7U Expired - Fee Related CN205446056U (en) 2016-02-29 2016-02-29 Inspiratory horizontal multistage centrifugal pump of axial

Country Status (1)

Country Link
CN (1) CN205446056U (en)

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
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: 20160810

Termination date: 20200229