CN108412776A - A kind of multistage deep-sea mixing pump using axle sleeve structure - Google Patents
A kind of multistage deep-sea mixing pump using axle sleeve structure Download PDFInfo
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- CN108412776A CN108412776A CN201810073296.8A CN201810073296A CN108412776A CN 108412776 A CN108412776 A CN 108412776A CN 201810073296 A CN201810073296 A CN 201810073296A CN 108412776 A CN108412776 A CN 108412776A
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- pump
- entrance
- outlet
- diffuser
- shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/08—Multi-stage pumps the stages being situated concentrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of multistage deep-sea mixing pump using axle sleeve structure disclosed by the invention,Including pump case,The both ends of pump case are fixedly installed entrance pump cover and outlet pump cover respectively,The other end of outlet pump cover is fixedly connected with outlet connecting pipe,Outlet pump, which covers, is coaxially arranged with outlet bearing block,The other end of entrance pump cover, which is fixedly connected sequentially, entrance connecting tube,Bearing housing and motor,Inlet pump, which covers, is coaxially arranged with entrance bearing block,Bearing housing axis is provided in bearing housing,The one end of bearing housing axis far from motor is inserted into entrance connecting tube,The pump shaft of fitting axle sleeve is provided in pump case,One end of pump shaft be inserted into entrance connecting tube and with bearing housing axis connection,The other end of pump shaft is located in outlet bearing block,Uniformly it is socketed with the static diffuser of several grades on pump shaft successively in an axial direction,Diffuser is equipped with the double shrouded wheel being fixedly attached with pump shaft close to one end of entrance pump cover,Operational efficiency is high under the operating mode of high void fraction and pump shaft service life is long.
Description
Technical field
The invention belongs to Fluid Machinery and Engineering equipment technical fields, and in particular to a kind of deep using the multistage of axle sleeve structure
Extra large mixing pump.
Background technology
It is growing day by day to the demand of the mineral resources such as oil, gas with the high speed development of countries in the world economy and industry, and
Land mineral resources are increasingly reduced again, and deep-sea is as the region that last block is not developed in the world, because its mineral resources is contained
Amount is very abundant and countries in the world scientist is caused to fall over each other to study.
Deep-sea oil gas adopt transferring technology research be how will contain the mineral resources such as the abundant oil in seabed, gas acquisition and it is defeated
It is sent to sea, and the mine technology of raising that petroleum and gas resources are promoted to sea from seabed is one of the core technology that transferring technology is adopted at deep-sea,
That is multiphase mixing transmission pump.For the mineral resource distributions such as oil gas in thousands of meters of seabed, exploitation difficulty is big, and conveying technology requires high, deep-sea
Defeated system job is adopted in the process also subject to the effect of the ocean dynamical environments such as ocean current, stormy waves and seawater pressure, and operating environment is very
Badly, this adopts transferring technology to deep-sea more stringent requirements are proposed.
Multiphase mixing transmission pump is divided into turbine type multiphase mixing transmission pump and positive displacement multiphase mixing transmission pump according to operation principle.Numerous
In multiphase mixing transmission pump, although it is that double-screw type multiphase mixing transmission pump and helico-axial are more that application is more in production practice at present
Phase mixing pump, but multistage centrifugal multiphase mixing transmission pump has higher lift with it than centrifugal pump of single stage type, than piston pump, diaphragm
Pump, screw pump etc. have a flow of bigger, and centrifugal multistage pump multiple centrifugal pump have operational safety steady, low noise, service life long, installation dimension
The advantages that facilitating is repaiied, the multiple fields such as petrochemical industry, electric power and urban water supply are widely used in.
Centrifugal multistage pump multiple centrifugal pump is made of multiple runners and fixed guide vane diffuser, it is a kind of nothing of energy huge discharge lifting oil
Rod pumping device belongs to one kind of well electric submersible pump, and existing discharge capacity is big, and lift is high, it is good in economic efficiency the advantages that, be suitable for height
The oil field of aqueous and low oil-gas ratio.But since operating condition is poor under the operating mode of high void fraction for it, so mix defeated system in undersea
System application is less；Meanwhile main shaft and the sliding axle on diffuser are mostly used for the long axis sliding bearing scheme of multistage pump at present
The arrangement being in direct contact is held, since deep-sea multistage pump is mainly used in the petroleum transportation engineering at deep-sea, the medium transported
In in addition to water and oil, the also impurity such as sand, if the arrangement being in direct contact using main shaft and sliding bearing, these Jie
Matter is in direct contact with main shaft, will certainly cause main shaft surface abrasion, and at work, and the speed of mainshaft is higher, and generation rubs
Wiping power is also bigger, and so on works and inherently reduces the service life of main shaft, in the long run, is unfavorable for saving and is fabricated to
This.
Invention content
The purpose of the present invention is to provide a kind of multistage deep-sea mixing pumps using axle sleeve structure, in the operating mode of high void fraction
Lower operational efficiency is high and pump shaft service life is long.
The technical solution adopted in the present invention is：A kind of multistage deep-sea mixing pump using axle sleeve structure, including cylindrical shape
Pump case, the both ends of pump case are fixedly installed entrance pump cover and outlet pump cover respectively, and the other end for exporting pump cover is fixedly connected with
Outlet connecting pipe, outlet pump cover the outlet bearing block for being coaxially arranged with and being connected to pump case with outlet connecting pipe, entrance pump cover
The other end, which is fixedly connected sequentially, entrance connecting tube, bearing housing and motor, and inlet pump, which covers, to be coaxially arranged with pump case and entrance
The entrance bearing block of connecting tube connection, is provided with the bearing housing axis being fixedly and coaxially connected with motor output shaft, bearing in bearing housing
The one end of case axis far from motor is inserted into entrance connecting tube, and pump shaft is provided in pump case, and one end of pump shaft passes through entrance bearing
Seat is inserted into entrance connecting tube and is connected by shaft coupling with bearing housing axis, and the other end of pump shaft is located at outlet bearing block
It is interior, it is located on pump shaft between inlet pump lid and outlet pump cover and is uniformly socketed with the static diffuser of several grades successively in an axial direction, expands
Depressor is equipped with the double shrouded wheel being fixedly attached with pump shaft close to one end of entrance pump cover；
It is both provided between outlet bearing block and final stage diffuser, between every grade of impeller and upper level diffuser and is linked in pump
The center of connector sleeve on axis, several grades of diffusers is respectively and fixedly provided with external bushing, is respectively and fixedly provided with close to the position of diffuser on pump shaft
The neck bush being slidably matched with external bushing.
The features of the present invention also characterized in that
Several grades of diffusers are sticked in pump housing endophragm and are slidably connected between pump shaft, are located at the diffuser point at both ends
It is not butted on entrance pump cover and outlet pump covers, is mutually clamped between adjacent two diffusers.
Inducer is provided between entrance bearing block and the wheel cap of first stage impeller, the wheel cap other end of first stage impeller connects
It is connected to chopped-off head diffuser, is provided with exducer between final stage diffuser and outlet bearing block, the wheel disc of several grades of impellers is equal
It is fixedly attached with pump shaft.
The position that bearing housing axis stretches out in bearing housing is provided with holder bushing, and pump shaft passes through the position of entrance bearing block to be arranged
There are entrance bearing insert, pump shaft that the position of outlet bearing block is passed through to be provided with outlet bearing insert.
It is both provided with the first O-shaped sealing between entrance pump cover and entrance connecting tube, between outlet pump cover and outlet connecting pipe
Circle；Several grades are both provided with the second O-ring seal between diffuser and pump case.
Pump shaft is located at one end, pump shaft in outlet bearing block and is located at one end in entrance bearing block and is both provided with check ring.
The wheel of impeller covers close diffuser one end coordinated with it and is both provided with wearing ring.
Pump intake mechanical seal and throw rijng are sheathed on bearing housing axis side by side, pump intake mechanical seal is connected close to entrance
Pipe.
Impeller and diffuser are both provided with 25 grades.
The beneficial effects of the invention are as follows：A kind of multistage deep-sea mixing pump using axle sleeve structure of the invention, using super-pressure
Multistage multiphase mixing transmission pump after power entrance improves the performance decline of centrifugal mixing pump when high void fraction to a certain extent
Problem improves the anti-cavitation ability of blade；By axial force supporting device and pump housing structure design arranged apart so that multiphase
The integrated performance indexs such as the hydraulic efficiency under the operation stability of mixing pump, high void fraction are significantly improved；Neck bush
Rotated under the driving of pump shaft and diffuser on external bushing constitute sliding bearing, overlength pump shaft can effectively be supported, it is anti-
Only pump shaft occurs eccentric, and neck bush combination connector sleeve can prevent being in direct contact for medium and pump shaft surface.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 2 is the structural schematic diagram of impeller in a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 3 is the stereogram of impeller in a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 4 is the structural schematic diagram of diffuser in a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 5 is the stereogram of diffuser in a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 6 is the partial structural diagram of inlet in a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention；
Fig. 7 is a kind of partial enlarged view of multistage deep-sea mixing pump using axle sleeve structure of the present invention in Fig. 6.
In figure, 1. pump cases, 2. entrance pump covers, 3. outlet pump covers, 4. outlet connecting pipes, 5. outlet bearing blocks, 6. entrances company
It takes over, 7. bearing housings, 8. motors, 9. entrance bearing blocks, 10. bearing housing axis, 11. pump shafts, 12. shaft couplings, 13. diffusers, 14.
Impeller, 15. inducer, 16. exducers, 17. holder bushings, 18. entrance bearing inserts, 19. outlet bearing inserts,
20. the first O-ring seal, 21. second O-ring seals, 22. check rings, 23. wearing rings, 24. pump intake mechanical seals, 25.
Throw rijng, 26. connector sleeves, 27. external bushings, 28. neck bush.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific implementation mode the present invention is described in detail.
The present invention provides a kind of multistage deep-sea mixing pumps using axle sleeve structure, as shown in Figures 1 to 7, including cylinder
The both ends of the pump case 1 of shape, pump case 1 are fixedly installed entrance pump cover 2 and outlet pump cover 3 respectively, and the other end of outlet pump cover 3 is fixed
It is connected with outlet connecting pipe 4, exports and is coaxially arranged with the outlet bearing block 5 for being connected to pump case 1 with outlet connecting pipe 4 on pump cover 3,
The other end of entrance pump cover 2, which is fixedly connected sequentially, entrance connecting tube 6, bearing housing 7 and motor 8, is coaxially disposed on entrance pump cover 2
There is the entrance bearing block 9 for being connected to pump case 1 with entrance connecting tube 6, is provided in bearing housing 7 and is coaxially fixed with 8 output shaft of motor
The bearing housing axis 10 of connection is sheathed with pump intake mechanical seal 24 and throw rijng 25, pump intake machinery on bearing housing axis 10 side by side
Close to entrance connecting tube 6, the one end of bearing housing axis 10 far from motor 8 is inserted into entrance connecting tube 6, is set in pump case 1 for sealing 24
It is equipped with pump shaft 11, one end of pump shaft 11 is inserted into entrance connecting tube 6 across entrance bearing block 9 and passes through connection with bearing housing axis 10
Axis device 12 is connected, and the other end of pump shaft 11 is located in outlet bearing block 5, and inlet pump lid 2 and outlet pump cover 3 are located on pump shaft 11
Between be uniformly socketed with successively in an axial direction 25 grades of static 13,25 grades of diffusers 13 of diffuser be sticked in 1 inner wall of pump case and with
It is slidably connected between pump shaft 11, the diffuser 13 positioned at both ends is butted on respectively on entrance pump cover 2 and outlet pump cover 3, adjacent
It is mutually clamped between two diffusers 13, diffuser 13 is equipped with close to one end of entrance pump cover 2 and is fixed with pump shaft 11
The double shrouded wheel 14 of socket exports between bearing block 5 and final stage diffuser 13, between every grade of impeller 14 and upper level diffuser 13
It is both provided with the connector sleeve 26 being linked on pump shaft 11, the center of several grades of diffusers 13 is respectively and fixedly provided with external bushing 27, pump shaft 11
The upper position close to diffuser 13 is respectively and fixedly provided with the neck bush 28 being slidably matched with external bushing 27, the wheel of impeller 14 cover it is close with
Its 13 one end of diffuser coordinated is both provided with wearing ring 23, is provided between entrance bearing block 9 and the wheel cap of first stage impeller 14
The wheel cap other end of inducer 15, first stage impeller 14 is connected to chopped-off head diffuser 13, final stage diffuser 13 and outlet bearing
The wheel disc that 16,25 grades of impellers 14 of exducer are provided between seat 5 is fixedly attached with pump shaft 11.
The position that bearing housing axis 10 stretches out in bearing housing 7 is provided with holder bushing 17, and pump shaft 11 passes through entrance bearing block 9
Position is provided with entrance bearing insert 18, and pump shaft 11 passes through the position of outlet bearing block 5 to be provided with outlet bearing insert 19.Entrance
It is both provided with the first O-ring seal 20 between pump cover 2 and entrance connecting tube 6, between outlet pump cover 3 and outlet connecting pipe 4；25 grades
The second O-ring seal 21 is both provided between diffuser 13 and pump case 1.Pump shaft 11 is located at one end, pump shaft 11 in outlet bearing block 5
One end is both provided with check ring 22 in entrance bearing block 9.
When work, liquid medium passes through the entrance bearing block 9 on entrance pump cover 2 to enter pump case 1 by entrance connecting tube 6
It is interior, inducer 15 is flowed through later to be entered in the wheel cap of first stage impeller 14, under the wheel disc turning effort of impeller 14, liquid
Along the wheel cap radial inflow diffuser 13 of impeller 14, converts the kinetic energy of liquid to static pressure energy in diffuser 13, pass through successively
It crosses after 25 grades of impellers 14 and diffuser 13 and is exported in outlet connecting pipe 4 by exducer 16 by exporting bearing block 5.This hair
The wheel disc of bright impeller 14 and the guide vane of diffuser 13 are all made of curved blade, make its remain to reach under high void fraction operating mode compared with
High operational efficiency, while higher inlet pressure can also make gas phase obtain certain volume compression in transmission process, and
It will not largely be gathered in runner and block runner, this is also improved the operational efficiency of mixing pump, and in currently available technology
Multistage pump to realize flow direction variation of the medium between at different levels, generally require the guide vane of two forms, i.e., guide vane with it is anti-ballistic
Leaf could realize that flow media is flowed into next stage from level-one, and the guide vane that the present invention designs is realized through a guide vane diffusion
Flow direction variation of the fluid in runner can be realized in device 13, and ensures the turbulent flow for having smaller when fluid enters next stage runner
State, the present invention are to reach bigger as far as possible in the case where ensureing fluid stable using 25 grades of impellers 14 and diffuser 13
Supercharging, because the present invention is to be applied to deep-sea oil gas to exploit, target is to achieve that medium from opening by one group of multistage mixing pump
Adopt the transport that mouth directly reaches sea level；
Neck bush 28 rotated under the driving of pump shaft 11 and diffuser 13 on external bushing 27 constitute sliding bearing, can be right
Overlength pump shaft 11 is effectively supported, and prevents pump shaft 11 from bias occur, neck bush 28 in conjunction with connector sleeve 26 can prevent medium with
11 surface of pump shaft is in direct contact, after neck bush 28 and connector sleeve 26 are worn, it is thus only necessary to it is replaced, compared to
It replaces not only economical for the pump shaft 11 of overlength but also conveniently, if not using axle sleeve structure, needs to handle 11 surface of pump shaft,
Its hardness is improved, the cost being surface-treated to entire long pump shaft 11 is higher, and difficulty is larger；If using axle sleeve structure, only
Surface hardening treatment need to be carried out to axle sleeve, reduce cost and technology difficulty.
The setting of inducer 15 and exducer 16 keeps its runner smooth, without larger cavity or protrusion, reduces
Flow losses realize the effect steadily flow backwards；When the setting of wearing ring 23 is so that the wheel disc of impeller 14 works, due to centrifuging masterpiece
It can be moved to pump discharge side with wheel disc, to prevent wheel disc and diffuser 13 to be in direct contact friction, with less frictional dissipation, increase wheel
The disk service life；The setting of throw rijng 25 can prevent the working media oozed out by pump intake mechanical seal 24 from entering in bearing housing 7, with
Pump intake mechanical seal 24 is used cooperatively and plays a protective role.
Surpass by the above-mentioned means, a kind of multistage deep-sea mixing pump using axle sleeve structure of the invention meets in deep-sea is recovered the oil
High pressure value, Each part and sealing are according to undertaking 30MPa pressure designs and arrangement；Using multilevel design, high lift,
High efficiency meets long-distance sand transport, can ensure under 30% void fraction, and higher efficiency, efficiency is maintained to reach 60% or more；Often
Grade diffuser 13 is mounted on bush(ing) bearing, ensures that radial deflection does not occur in it, and the connection structure of diffuser 13 passes through
Both ends, which compress, ensures that it cannot be moved axially, and the present invention improves the problem that the centrifugal multi-phase mixed delivering efficiency of pump is low under high void fraction,
Production efficiency is improved, working environment is met in structure design, and can stable operation；Neck bush 28 can be prevented in conjunction with connector sleeve 26
Medium is in direct contact with 11 surface of pump shaft, to increase the service life of pump shaft 11；Connected by shaft coupling 12 in entrance connecting tube 6
Pump shaft 11 and bearing housing axis 10 are connect, the sealing of bearing housing axis 10 uses mechanical seal, axial force to be born by independent bearing housing 7,
Operation and maintenance are convenient, and do not influence the stable operation of multiphase pump.
Claims (9)
1. a kind of multistage deep-sea mixing pump using axle sleeve structure, which is characterized in that including columnar pump case (1), pump case (1)
Both ends be fixedly installed respectively entrance pump cover (2) and outlet pump cover (3), outlet pump cover (3) the other end be fixedly connected with out
Mouth connecting tube (4) exports and is coaxially arranged with the outlet bearing block for being connected to pump case (1) with outlet connecting pipe (4) on pump cover (3)
(5), the other end of entrance pump cover (2), which is fixedly connected sequentially, entrance connecting tube (6), bearing housing (7) and motor (8), inlet pump
It is coaxially arranged with the entrance bearing block (9) for being connected to pump case (1) with entrance connecting tube (6) on lid (2), is arranged in bearing housing (7)
There are the bearing housing axis (10) being fixedly and coaxially connected with motor (8) output shaft, the one end of bearing housing axis (10) far from motor (8) to stretch into
In entrance connecting tube (6), it is provided with pump shaft (11) in pump case (1), one end of pump shaft (11) is stretched into across entrance bearing block (9)
It is connected by shaft coupling (12) in entrance connecting tube (6) and with bearing housing axis (10), the other end of pump shaft (11) is located at
It is located in mouth bearing block (5), on pump shaft (11) between inlet pump lid (2) and outlet pump cover (3) and is uniformly socketed with successively in an axial direction
The static diffuser of several grades (13), diffuser (13) are equipped with and pump shaft (11) close to one end of entrance pump cover (2)
The double shrouded wheel (14) being fixedly attached；
It is all provided between outlet bearing block (5) and final stage diffuser (13), between every grade of impeller (14) and upper level diffuser (13)
It is equipped with the connector sleeve (26) being linked on pump shaft (11), the center of several grades of diffusers (13) is respectively and fixedly provided with external bushing (27), pump
The neck bush (28) being slidably matched with external bushing (27) is respectively and fixedly provided on axis (11) close to the position of diffuser (13).
2. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that several grades
Diffuser (13) is sticked in pump case (1) inner wall and is slidably connected between pump shaft (11), is located at the diffuser (13) at both ends
It is butted on entrance pump cover (2) and outlet pump cover (3), is mutually clamped between adjacent two diffusers (13) respectively.
3. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the inlet shaft
Inducer (15), the wheel cap other end of first stage impeller (14) are provided between bearing (9) and the wheel cap of first stage impeller (14)
It is connected to chopped-off head diffuser (13), exducer (16) is provided between final stage diffuser (13) and outlet bearing block (5), if
The wheel disc of dry grade impeller (14) is fixedly attached with pump shaft (11).
4. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the bearing housing
The position that axis (10) stretches out in bearing housing (7) is provided with holder bushing (17), and pump shaft (11) passes through the position of entrance bearing block (9)
It is provided with entrance bearing insert (18), pump shaft (11) passes through the position of outlet bearing block (5) to be provided with outlet bearing insert (19).
5. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the inlet pump
It is both provided with the first O-ring seal between lid (2) and entrance connecting tube (6), between outlet pump cover (3) and outlet connecting pipe (4)
(20)；It is both provided with the second O-ring seal (21) between several grades of diffusers (13) and pump case (1).
6. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the pump shaft
(11) it is located at the interior one end of outlet bearing block (5), pump shaft (11) is located at entrance bearing block (9) interior one end and is both provided with check ring
(22)。
7. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the impeller
(14) wheel covers close diffuser (13) one end coordinated with it and is both provided with wearing ring (23).
8. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the bearing housing
Pump intake mechanical seal (24) and throw rijng (25) are sheathed on axis (10) side by side, pump intake mechanical seal (24) connects close to entrance
It takes over (6).
9. a kind of multistage deep-sea mixing pump using axle sleeve structure as described in claim 1, which is characterized in that the impeller
(14) and diffuser (13) is both provided with 25 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073296.8A CN108412776B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump adopting shaft sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073296.8A CN108412776B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump adopting shaft sleeve structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108412776A true CN108412776A (en) | 2018-08-17 |
| CN108412776B CN108412776B (en) | 2020-04-21 |
Family
ID=63126494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810073296.8A Expired - Fee Related CN108412776B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump adopting shaft sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412776B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555200A (en) * | 2020-11-20 | 2021-03-26 | 西安理工大学 | Multistage gas-liquid mixed transportation pump suitable for high gas content |
| CN116498563A (en) * | 2023-04-03 | 2023-07-28 | 江苏大学 | Spiral axial flow type mixing and conveying pump adopting composite supporting mode |
| CN117759565A (en) * | 2024-01-30 | 2024-03-26 | 安徽省留香特种船舶有限责任公司 | Coupling mechanism of mixing pump |
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| CN201407189Y (en) * | 2009-05-18 | 2010-02-17 | 胜利油田胜利泵业有限责任公司 | High-efficiency gas-liquid centrifugal pump |
| US20170002823A1 (en) * | 2013-12-18 | 2017-01-05 | Ge Oil & Gas Esp, Inc. | Multistage centrifugal pump with integral abrasion-resistant axial thrust bearings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5722812A (en) * | 1996-06-20 | 1998-03-03 | Baker Hughes Incorporated | Abrasion resistant centrifugal pump |
| US20060204359A1 (en) * | 2005-03-11 | 2006-09-14 | Baker Hughes Incorporated | Abrasion resistant pump thrust bearing |
| CN201159176Y (en) * | 2006-12-01 | 2008-12-03 | 张锦华 | Stainless steel multilevel deep well pump |
| CN201407189Y (en) * | 2009-05-18 | 2010-02-17 | 胜利油田胜利泵业有限责任公司 | High-efficiency gas-liquid centrifugal pump |
| US20170002823A1 (en) * | 2013-12-18 | 2017-01-05 | Ge Oil & Gas Esp, Inc. | Multistage centrifugal pump with integral abrasion-resistant axial thrust bearings |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555200A (en) * | 2020-11-20 | 2021-03-26 | 西安理工大学 | Multistage gas-liquid mixed transportation pump suitable for high gas content |
| CN116498563A (en) * | 2023-04-03 | 2023-07-28 | 江苏大学 | Spiral axial flow type mixing and conveying pump adopting composite supporting mode |
| CN117759565A (en) * | 2024-01-30 | 2024-03-26 | 安徽省留香特种船舶有限责任公司 | Coupling mechanism of mixing pump |
| CN117759565B (en) * | 2024-01-30 | 2024-05-24 | 安徽省留香特种船舶有限责任公司 | Coupling mechanism of mixing pump |
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| Publication number | Publication date |
|---|---|
| CN108412776B (en) | 2020-04-21 |
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