CN207377809U - A kind of side goes out radial direction subdivision double suction centrifugal pump into side - Google Patents

A kind of side goes out radial direction subdivision double suction centrifugal pump into side Download PDF

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Publication number
CN207377809U
CN207377809U CN201721183793.0U CN201721183793U CN207377809U CN 207377809 U CN207377809 U CN 207377809U CN 201721183793 U CN201721183793 U CN 201721183793U CN 207377809 U CN207377809 U CN 207377809U
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China
Prior art keywords
pump
drive
cover
bearing
impeller
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CN201721183793.0U
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Chinese (zh)
Inventor
李银强
张克凤
甄彩莲
李威
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Jiangsu Double Pump Ltd By Share Ltd
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Jiangsu Double Pump Ltd By Share Ltd
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Abstract

A kind of side goes out radial direction subdivision double suction centrifugal pump into side, including impeller;Impeller is mounted on the centre position of pump shaft;The left and right ends of impeller are provided with axle sleeve;Axle sleeve is pressed on by locking nut on pump shaft;The left and right sides of impeller is sealedly connected with anti-drive end pump cover and driving end pump cover by sealing opening ring respectively;Anti-drive end pump cover is sealingly disposed in pump housing left end, and is sealed envelope by non-driven terminal and is arranged on pump shaft;Driving end pump cover is sealingly disposed in pump housing right end, and passes through and terminal envelope is driven to be sealingly disposed on pump shaft;The left end of anti-drive end pump cover is connected with non-driven-end bearing case;Sliding bearing and thrust bearing are provided in non-driven-end bearing case;The left end of thrust bearing is compressed by bearing (ball) cover;The left side of bearing (ball) cover is provided with fan in the left end of pump shaft;The right end of driving end pump cover is connected with drive end bearing case;Sliding bearing is provided in drive end bearing case;The pump housing uses radial direction subdivision.

Description

A kind of side goes out radial direction subdivision double suction centrifugal pump into side
Technical field
The utility model is related to double suction centrifugal pump, more particularly to a kind of side goes out radial direction subdivision double suction centrifugal pump into side.
Background technology
Double suction centrifugal pump is similar to other liquid of water for conveying clear water or physicochemical properties, according to user demand, leads to Cross change pump configuration and material and can be used for conveying more sand waters or all kinds of corrosive liquids, the series pump be suitable for factory, mine, Urban water supply and sewerage, power station, farmland discharging-irrigating and various hydraulic engineerings.With the improvement of overall situation economic situation, the improvements in market are got over Carry out more large projects to be made comments and instructions by country, be all especially some mega projects on petrochemical industry market, clean resources project, 20000000 tons/year, the Integrated Refinery And Petrochemical Projects such as 40,000,000 tons/year, device develop to enlargement, have also promoted industrial pump to large size To change, customize development, it is desirable that big flow is not limited to normal temperature and pressure, and as device improves, higher temperature elevated pressures High-capacity pump also come into being.
Side is pumped into horizontal middle open type double suction centrifugal pump is measured from earliest S types, horizontal, single-stage, double suction, horizontal axis subdivision, Its main feature is that flow is big, lift is relatively low, is generally used for room temperature clear water or sewage.Bearing uses deep-groove ball and for grease lubrication, uses In underloading low speed;With development, from structure waterpower to Bearing configuration, the enough improvement in various degree of seal arrangement, material configuration are used In petrochemical industry, Crude Oil Transportation, power plant cycle etc., application range further expands;But current this structure has the following problems: Such as Fig. 6, the double suction centrifugal pump of middle open type is composed of upper lower body, forms the working chamber of impeller, but the medium warp transported When crossing the runner in gap, the loss of pressure and energy is easily caused, existing connecting sewing can also limit transport Jie between upper lower body The temperature and density range of matter;Difficulty of processing is cumbersome, needs fit processing after face processing is opened in upper lower body, and sealing surface will ensure Certain flatness, upper and lower zoarium have certain misalignment, and for the installation of sealing, especially mechanical seal has certain positioning not Accurate risk;The mounting means of pump is supported using lower margin, because expansion upwards after heated, motor side is room temperature, so center Not the problems such as line is not consistent, and swell increment also can increase load to nozzle;Long-time high-temp and high-strength working environment can also cause axis Lubrication failure easily occurs for bearing assembly, so as to cause the damage of bearing assembly.
The content of the invention
The utility model aim is to provide a kind of side and goes out radial direction subdivision double suction centrifugal pump into side, solves more than technology and asks Topic.
In order to realize above-mentioned technical purpose, reach above-mentioned technology requirement, technical solution is used by the utility model: A kind of side goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:Including impeller;The impeller is mounted on the interposition of pump shaft It puts;The left and right ends of the impeller are provided with axle sleeve;The axle sleeve is pressed on by locking nut on pump shaft;A left side for the impeller Right both sides are sealedly connected with anti-drive end pump cover and driving end pump cover by sealing opening ring respectively;The anti-drive end pump cover sealing Pump housing left end is arranged on, and envelope is sealed by non-driven terminal and is arranged on pump shaft;The driving end pump cover is sealingly disposed in pump Body right end, and pass through and terminal envelope is driven to be sealingly disposed on pump shaft;The left end of the anti-drive end pump cover is connected with anti-drive end Bearing housing;Sliding bearing and thrust bearing are provided in the non-driven-end bearing case;The left end of the thrust bearing passes through axis Socket end lid compresses;The left side of the bearing (ball) cover is provided with fan in the left end of pump shaft;The right end connection of the driving end pump cover There is drive end bearing case;Sliding bearing is provided in the drive end bearing case.
Preferably:Point half locating ring is provided between the impeller and pump shaft;Described point of half locating ring is arranged on pump shaft Groove in.
Preferably:The left part of the anti-drive end pump cover is provided with trough with straight angle, and the upper surface of anti-drive end pump cover right part is set It is equipped with seal groove;The left end of the pump housing is sealingly disposed in by high temperature and pressure gasket in trough with straight angle;The anti-drive end pump It is sealed between the upper surface of lid right part and pump housing lower face by sealing ring;The sealing ring is arranged in seal groove;It is described non- Driving end pump cover is fixed by screws in the left end of the pump housing.
Preferably:The driving end pump cover is symmetricly set on using the fixation identical with anti-drive end pump cover and sealing means The right end of the pump housing.
Preferably:Platform is horizontally mounted there are two being set at the front/rear end of the pump housing shell;It is described be horizontally mounted it is flat Mounting hole is provided on platform;The center of circle of four mounting holes on pump shaft axisymmetrical arrange, on the pump housing it is vertical in Line is arranged symmetrically.
Preferably:At the sliding bearing, disc is set on pump shaft.
The beneficial effects of the utility model;A kind of side goes out radial direction subdivision double suction centrifugal pump into side, compared with traditional structure:Shell Body is designed as radial direction subdivision, and fluid media (medium) does not easily cause the loss of pressure and energy, Neng Goutuo when being flowed in the seamless pump housing The scope of application of the temperature and pressure of width pump, while the smaller medium of density can be conveyed;The pump housing manufacture drop of monoblock type Low manufacture difficulty, eliminates fit procedure of processing, while the inlet and outlet flange that side goes out into side, can not have to tear open when overhauling rotor The import and export pipeline is unloaded, rotor is extracted out just from anti-drive end, and maintenance is convenient, fast;Entire pump is disappeared by the way of central supported Except load suffered by nozzle, rigidity is good;Parts of bearings uses band heat radiating fin structure, and pump shaft drives fan to rotate, plays to axis The effect of case heat dissipation is held, extends the service life of bearing assembly;The double suction centrifugal pump for pumping utility model has very high market There are very wide economic benefit prospect in competitiveness, future.
Description of the drawings
Fig. 1 is the utility model structure diagram;
Fig. 2 is enlarged drawing at A in Fig. 1;
Fig. 3 is enlarged drawing at B in Fig. 1;
Fig. 4 is enlarged drawing at C in Fig. 1;
Fig. 5 is the utility model top view;
Fig. 6 is middle open type double suction centrifugal pump of the prior art;
In figure:1. impeller;2. pump shaft;3. axle sleeve;4. locking nut;5. sealing opening ring;6. anti-drive end pumps Lid;61. trough with straight angle;62. seal groove;7. drive end pump cover;8. the pump housing;9. non-driven terminal envelope;10. drive terminal Envelope;11. non-driven-end bearing case;12. sliding bearing;13. thrust bearing;14. bearing (ball) cover;15. fan;16. it drives Moved end bearing housing;17. point half locating ring;18. groove;19. high temperature and pressure gasket;20. sealing ring;21. screw;22. It is horizontally mounted platform;23. mounting hole;24. disc.
Specific embodiment
In order to become apparent from the goal of the invention of the utility model, technical solution and its advantageous effects, below in conjunction with The utility model is further elaborated in the drawings and specific embodiments;
In the accompanying drawings:A kind of side goes out radial direction subdivision double suction centrifugal pump into side, including impeller 1;The impeller 1 is mounted on pump shaft 2 centre position;The left and right ends of the impeller 1 are provided with axle sleeve 3;The axle sleeve 3 is pressed on pump shaft 2 by locking nut 4 On;The left and right sides of the impeller 1 is sealedly connected with anti-drive end pump cover 6 and driving end pump cover 7 by sealing opening ring 5 respectively; The anti-drive end pump cover 6 is sealingly disposed in 8 left end of the pump housing, and passes through non-driven terminal envelope 9 and be sealingly disposed on pump shaft 2;Institute It states driving end pump cover 7 and is sealingly disposed in 8 right end of the pump housing, and pass through and terminal envelope 10 is driven to be sealingly disposed on pump shaft 2;The non-drive The left end of moved end pump cover 6 is connected with non-driven-end bearing case 11;Sliding bearing 12 is provided in the non-driven-end bearing case 11 With thrust bearing 13;The left end of the thrust bearing 13 is compressed by bearing (ball) cover 14;The left side of the bearing (ball) cover 14 is pumping The left end of axis 2 is provided with fan 15;The right end of the driving end pump cover 7 is connected with drive end bearing case 16;The drive end axle It holds and sliding bearing 12 is provided in case 16;150 DEG C -170 DEG C conventional of middle open type double suction centrifugal pump maximum temperature scope, most ambassador With pressure 2Mpa, and the smaller medium of density can not convey;The pump housing 8 of the utility model is designed as radial direction subdivision, due to the pump housing 8 It is monoblock type, Gu impeller 1 drives fluid to be carried out in the pump housing 8 during centrifugal movement, energy loss is small, and having widened the temperature of pump makes With scope, temperature in use:- 40 DEG C -450 DEG C, pressure use scope, design pressure are widened:5-15 Mpa can be conveyed relatively close Medium of the degree less than 0.7;When installation and removal, it is only necessary to dismantle anti-drive end pump cover 6 and driving end pump cover 7, rotor is from non- It drives end extraction just, reduces manufacture difficulty, also allow for overhauling;Anti-drive end and driving end are respectively provided with sliding bearing 12, ensure The normal rotation of pump shaft 2, and anti-drive end is provided with thrust bearing 13 can offset the radial load that pump shaft 2 is subject to;A left side for pump shaft 2 End is provided with fan 15, and the bearing and lubricating fluid that can be given in non-driven bearing housing 11 cool down.
Point half locating ring 17 is provided between the impeller 1 and pump shaft;Described point of half locating ring 17 is arranged on pump shaft 2 In groove 18;Divide the setting of half locating ring 17, can ensure that impeller 1 is not susceptible to deflection under high temperature and pressure working condition, make It obtains axle sleeve 3 and preferably supports impeller 1.
The left part of the anti-drive end pump cover 6 is provided with trough with straight angle 61, and the upper surface of 6 right part of anti-drive end pump cover is provided with Seal groove 62;The left end of the pump housing 8 is sealingly disposed in by high temperature and pressure gasket 19 in trough with straight angle 61;The anti-drive end It is sealed between 8 lower face of upper surface and the pump housing of 6 right part of pump cover by sealing ring 20;The sealing ring 20 is arranged in seal groove 62 It is interior;The anti-drive end pump cover 6 is fixed on the left end of the pump housing 8 by screw 21;The driving end pump cover 7 uses and anti-drive end The identical fixation of pump cover 6 and sealing means are symmetricly set on the right end of the pump housing 8;When impeller 1 drives fluid media (medium) movement, from the pump housing 8 inside, by dual-seal, improve the whole sealing performance of pump to external.
Platform 22 is horizontally mounted there are two being set at the front/rear end of 8 shell of the pump housing;It is described to be horizontally mounted platform 22 On be provided with mounting hole 23;The center of circle of four mounting holes 23 is arranged on the axisymmetrical of pump shaft 2, on the perpendicular of the pump housing 8 Straight center line is arranged symmetrically;As shown in figure 5, central supported can be realized in the structure, expansion is uniform everywhere for pump, ensure that rigidity will It asks.
At the sliding bearing 12, disc 24 is set on pump shaft 2;The normal work of sliding bearing 12 needs profit well Sliding, disc 24 can spill the lubricating oil in bearing housing on sliding bearing 12.
The specific implementation of the utility model:The positioning method entirely pumped is:Impeller of rotor 1 is mounted in the pump housing 8, the pump housing 8 It is positioned with the pump cover of the left and right sides, pump cover is positioned with corresponding bearing housing, and bearing housing is positioned with corresponding bearing, and bearing is to pump Axis 2 positions, last pump shaft 2 and 1 location and installation of impeller.

Claims (6)

1. a kind of side goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:Including impeller(1);The impeller(1)It is mounted on Pump shaft(2)Centre position;The impeller(1)Left and right ends be provided with axle sleeve(3);The axle sleeve(3)Pass through locking nut (4)It is pressed on pump shaft(2)On;The impeller(1)The left and right sides pass through sealing opening ring respectively(5)It is sealedly connected with anti-drive end Pump cover(6)With driving end pump cover(7);The anti-drive end pump cover(6)It is sealingly disposed in the pump housing(8)Left end, and pass through non-driven Terminal seals(9)It is sealingly disposed in pump shaft(2)On;The driving end pump cover(7)It is sealingly disposed in the pump housing(8)Right end, and pass through drive Moved end machine envelope(10)It is sealingly disposed in pump shaft(2)On;The anti-drive end pump cover(6)Left end be connected with non-driven-end bearing case (11);The non-driven-end bearing case(11)Inside it is provided with sliding bearing(12)And thrust bearing(13);The thrust bearing (13)Left end pass through bearing (ball) cover(14)It compresses;The bearing (ball) cover(14)Left side, in pump shaft(2)Left end be provided with wind Fan(15);The driving end pump cover(7)Right end be connected with drive end bearing case(16);The drive end bearing case(16)Inside set It is equipped with sliding bearing(12).
2. a kind of side according to claim 1 goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:The impeller (1)Point half locating ring is provided between pump shaft(17);Described point of half locating ring(17)It is arranged on pump shaft(2)On groove(18) It is interior.
3. a kind of side according to claim 1 goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:It is described non-driven Hold pump cover(6)Left part be provided with trough with straight angle(61), anti-drive end pump cover(6)The upper surface of right part is provided with seal groove(62); The pump housing(8)Left end pass through high temperature and pressure gasket(19)It is sealingly disposed in trough with straight angle(61)It is interior;The anti-drive end pump Lid(6)The upper surface of right part and the pump housing(8)Pass through sealing ring between lower face(20)Sealing;The sealing ring(20)It is arranged in close Sealing groove(62)It is interior;The anti-drive end pump cover(6)Pass through screw(21)It is fixed on the pump housing(8)Left end.
4. a kind of side according to claim 3 goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:The driving end Pump cover(7)Using with anti-drive end pump cover(6)Identical fixation and sealing means is symmetricly set on the pump housing(8)Right end.
5. a kind of side according to claim 1 goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:The pump housing (8)Platform is horizontally mounted there are two being set at the front/rear end of shell(22);It is described to be horizontally mounted platform(22)On be provided with peace Fill hole(23);Four mounting holes(23)The center of circle on pump shaft(2)Axisymmetrical arrangement, on the pump housing(8)Vertical center line It is arranged symmetrically.
6. a kind of side according to claim 1 goes out radial direction subdivision double suction centrifugal pump into side, it is characterised in that:The sliding axle It holds(12)Locate, in pump shaft(2)Upper setting disc(24).
CN201721183793.0U 2017-09-15 2017-09-15 A kind of side goes out radial direction subdivision double suction centrifugal pump into side Active CN207377809U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721183793.0U CN207377809U (en) 2017-09-15 2017-09-15 A kind of side goes out radial direction subdivision double suction centrifugal pump into side

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721183793.0U CN207377809U (en) 2017-09-15 2017-09-15 A kind of side goes out radial direction subdivision double suction centrifugal pump into side

Publications (1)

Publication Number Publication Date
CN207377809U true CN207377809U (en) 2018-05-18

Family

ID=62340003

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721183793.0U Active CN207377809U (en) 2017-09-15 2017-09-15 A kind of side goes out radial direction subdivision double suction centrifugal pump into side

Country Status (1)

Country Link
CN (1) CN207377809U (en)

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