CN108331760A - A kind of multistage deep-sea mixing pump - Google Patents
A kind of multistage deep-sea mixing pump Download PDFInfo
- Publication number
- CN108331760A CN108331760A CN201810072787.0A CN201810072787A CN108331760A CN 108331760 A CN108331760 A CN 108331760A CN 201810072787 A CN201810072787 A CN 201810072787A CN 108331760 A CN108331760 A CN 108331760A
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- Prior art keywords
- pump
- entrance
- outlet
- bearing block
- bearing housing
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
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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
-
- 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
- F04D29/40—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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of multistage deep-sea mixing pump 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,Pump shaft 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,Solve the problems, such as that existing centrifugal multiphase mixing transmission pump operational efficiency under the operating mode of high void fraction is low.
Description
Technical field
The invention belongs to Fluid Machinery and Engineering equipment technical fields, and in particular to a kind of multistage deep-sea 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.
Invention content
The purpose of the present invention is to provide a kind of multistage deep-sea mixing pumps, solve existing centrifugal multiphase mixing transmission pump in height
The low problem of operational efficiency under the operating mode of void fraction.
The technical solution adopted in the present invention is：A kind of multistage deep-sea mixing pump, including columnar pump case, the two of pump case
End is 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, exports
The outlet bearing block for being connected to pump case with outlet connecting pipe is coaxially arranged on pump cover, the other end of entrance pump cover is fixed successively to be connected
It is connected to entrance connecting tube, bearing housing and motor, inlet pump covers the entrance for being coaxially arranged with and being connected to pump case with entrance connecting tube
Bearing block, is provided with the bearing housing axis being fixedly and coaxially connected with motor output shaft in bearing housing, bearing housing axis far from motor one
End is inserted into entrance connecting tube, and pump shaft is provided in pump case, and one end of pump shaft is inserted into entrance connection across entrance bearing block
It is connected by shaft coupling in pipe and with bearing housing axis, the other end of pump shaft is located in outlet bearing block, and entrance is located on pump shaft
It is uniformly socketed with the static diffuser of several grades successively in an axial direction between pump cover and outlet pump cover, diffuser is close to entrance pump cover
One end is equipped with the double shrouded wheel being fixedly attached with pump shaft.
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 of the present invention, using the multistage after hyperpressure entrance
The problem of performance that multiphase mixing transmission pump improves centrifugal mixing pump when high void fraction to a certain extent declines, improves blade
Anti-cavitation ability；By axial force supporting device and pump housing structure design arranged apart so that the operation of multiphase mixing transmission pump is steady
The integrated performance indexs such as the hydraulic efficiency under qualitative, high void fraction are significantly improved.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of multistage deep-sea mixing pump of the present invention；
Fig. 2 is the structural schematic diagram of impeller in a kind of multistage deep-sea mixing pump of the present invention；
Fig. 3 is the stereogram of impeller in a kind of multistage deep-sea mixing pump of the present invention；
Fig. 4 is the structural schematic diagram of diffuser in a kind of multistage deep-sea mixing pump of the present invention；
Fig. 5 is the stereogram of diffuser in a kind of multistage deep-sea mixing pump of the present invention；
Fig. 6 is the partial structural diagram of inlet in a kind of multistage deep-sea mixing pump of the present invention.
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.
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, as shown in Figures 1 to 6, 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 outlet connection
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, entrance pump cover 2 it is another
One end, which is fixedly connected sequentially, entrance connecting tube 6, bearing housing 7 and motor 8, is coaxially arranged on entrance pump cover 2 by pump case 1 and is entered
The entrance bearing block 9 that mouthful connecting tube 6 is connected to is provided with the bearing housing axis being fixedly and coaxially connected with 8 output shaft of motor in bearing housing 7
10, it is sheathed with pump intake mechanical seal 24 and throw rijng 25 side by side on bearing housing axis 10, pump intake mechanical seal 24 is close to entrance
Connecting tube 6, the one end of bearing housing axis 10 far from motor 8 are inserted into entrance connecting tube 6, and pump shaft 11, pump shaft are provided in pump case 1
11 one end is inserted into entrance connecting tube 6 across entrance bearing block 9 and is connected by shaft coupling 12 with bearing housing axis 10, pumps
The other end of axis 11 is located in outlet bearing block 5, is located on pump shaft 11 between inlet pump lid 2 and outlet pump cover 3 in an axial direction successively
25 grades of static 13,25 grades of diffusers 13 of diffuser are uniformly socketed with to be sticked in 1 inner wall of pump case and slide between pump shaft 11
Dynamic connection, the diffuser 13 positioned at both ends are butted on respectively on entrance pump cover 2 and outlet pump cover 3, adjacent two diffusers 13 it
Between be mutually clamped, diffuser 13 is equipped with the double shrouded wheel being fixedly attached with pump shaft 11 close to one end of entrance pump cover 2
14, the wheel of impeller 14 covers close 13 one end of diffuser coordinated with it and is both provided with wearing ring 23, entrance bearing block 9 and chopped-off head
Inducer 15 is provided between the wheel cap of impeller 14, the wheel cap other end of first stage impeller 14 is connected to chopped-off head diffuser 13,
The wheel disc that 16,25 grades of impellers 14 of exducer are provided between final stage diffuser 13 and outlet bearing block 5 is solid with pump shaft 11
Fixed socket.
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；The setting of inducer 15 and exducer 16 keeps its runner smooth, without larger
Cavity or protrusion, reduce flow losses, realize the effect steadily flow backwards；The setting of wearing ring 23 makes the wheel disc work of impeller 14
When making, since centrifugation force effect wheel disc can move to pump discharge side, to prevent wheel disc and diffuser 13 is in direct contact friction, with compared with
Few frictional dissipation, increases the wheel disc service life；The setting of throw rijng 25 can prevent from being situated between by the work that pump intake mechanical seal 24 is oozed out
Matter enters in bearing housing 7, is used cooperatively and plays a protective role with pump intake mechanical seal 24.
By the above-mentioned means, a kind of multistage deep-sea mixing pump of the present invention meets the pressure value of superelevation in deep-sea is recovered the oil,
Each part and sealing are according to undertaking 30MPa pressure designs and arrangement；Using multilevel design, high lift, high efficiency meets remote
Distance conveying, can ensure under 30% void fraction, and higher efficiency, efficiency is maintained to reach 60% or more；Every grade of diffuser 13 is equal
Bush(ing) bearing is installed, ensures that radial deflection does not occur in it, and the connection structure of diffuser 13 is compressed by both ends and ensured
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, improve production efficiency,
Meet working environment in structure design, and can stable operation；Pump shaft 11 and bearing housing are connected by shaft coupling 12 in entrance connecting tube 6
The sealing of axis 10, bearing housing axis 10 uses mechanical seal, axial force to be born by independent bearing housing 7, and operation and maintenance are convenient, and not
Influence the stable operation of multiphase pump.
Claims (9)
1. a kind of multistage deep-sea mixing pump, which is characterized in that including columnar pump case (1), the both ends of pump case (1) are fixed respectively
It is provided with entrance pump cover (2) and outlet pump cover (3), the other end of outlet pump cover (3) is fixedly connected with outlet connecting pipe (4), goes out
It is coaxially arranged with the outlet bearing block (5) for being connected to pump case (1) with outlet connecting pipe (4), entrance pump cover (2) on mouth pump cover (3)
The other end be fixedly connected sequentially and there is entrance connecting tube (6), bearing housing (7) and motor (8), entrance pump cover to be coaxially disposed on (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 exported with motor (8)
The bearing housing axis (10) that axis is fixedly and coaxially connected, the one end of bearing housing axis (10) far from motor (8) are inserted into entrance connecting tube (6)
It is interior, it is provided with pump shaft (11) in pump case (1), one end of pump shaft (11) is inserted into entrance connecting tube (6) across entrance bearing block (9)
Interior and be connected by shaft coupling (12) with bearing housing axis (10), the other end of pump shaft (11) is located in outlet bearing block (5), pump
It is located on axis (11) between inlet pump lid (2) and outlet pump cover (3) and is uniformly socketed with the static diffusion of several grades successively in an axial direction
Device (13), diffuser (13) are equipped with the enclosed leaf being fixedly attached with pump shaft (11) close to one end of entrance pump cover (2)
It takes turns (14).
2. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that several grades of diffusers (13) are blocked
It is slidably connected together in pump case (1) inner wall and between pump shaft (11), the diffuser (13) for being located at both ends is butted on inlet pump respectively
It covers on (2) and outlet pump cover (3), is mutually clamped between adjacent two diffusers (13).
3. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that the entrance bearing block (9) and chopped-off head
Inducer (15) is provided between the wheel cap of impeller (14), the wheel cap other end of first stage impeller (14) is connected to chopped-off head diffusion
Device (13), is provided with exducer (16) between final stage diffuser (13) and outlet bearing block (5), several grades of impellers (14)
Wheel disc is fixedly attached with pump shaft (11).
4. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that the bearing housing axis (10) stretches out in axis
The position for holding case (7) is provided with holder bushing (17), and pump shaft (11) passes through the position of entrance bearing block (9) to be provided with entrance bearing
Bushing (18), pump shaft (11) pass 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 as described in claim 1, which is characterized in that the entrance pump cover (2) connects with entrance
It takes between (6), be both provided with the first O-ring seal (20) between outlet pump cover (3) and outlet connecting pipe (4)；Several grades of expansions
The second O-ring seal (21) is both provided between depressor (13) and pump case (1).
6. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that the pump shaft (11) is located at outlet bearing
The interior one end of seat (5), pump shaft (11) are located at entrance bearing block (9) interior one end and are both provided with check ring (22).
7. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that the wheel of the impeller (14) covers close
Diffuser (13) one end coordinated with it is both provided with wearing ring (23).
8. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that covered side by side on the bearing housing axis (10)
Conjunction has pump intake mechanical seal (24) and throw rijng (25), and pump intake mechanical seal (24) is close to entrance connecting tube (6).
9. a kind of multistage deep-sea mixing pump as described in claim 1, which is characterized in that the impeller (14) and diffuser (13)
It is both provided with 25 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072787.0A CN108331760B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072787.0A CN108331760B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331760A true CN108331760A (en) | 2018-07-27 |
| CN108331760B CN108331760B (en) | 2020-06-26 |
Family
ID=62926557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810072787.0A Active CN108331760B (en) | 2018-01-25 | 2018-01-25 | Multistage deep sea mixed transportation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331760B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630395A (en) * | 2018-11-28 | 2019-04-16 | 李怡君 | A kind of multi-stage booster current divider |
| CN111043049A (en) * | 2019-12-13 | 2020-04-21 | 西安理工大学 | Pressure guiding hole structure for multi-stage pump static pressure test and multi-stage pump thereof |
| CN112555201A (en) * | 2020-11-30 | 2021-03-26 | 西安理工大学 | Visual multistage mixed transportation pump for experiments |
| CN112762024A (en) * | 2021-01-11 | 2021-05-07 | 兰州理工大学 | Double-shaft bidirectional-transmission spiral axial-flow oil-gas mixed transmission pump |
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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 |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630395A (en) * | 2018-11-28 | 2019-04-16 | 李怡君 | A kind of multi-stage booster current divider |
| CN111043049A (en) * | 2019-12-13 | 2020-04-21 | 西安理工大学 | Pressure guiding hole structure for multi-stage pump static pressure test and multi-stage pump thereof |
| CN112555201A (en) * | 2020-11-30 | 2021-03-26 | 西安理工大学 | Visual multistage mixed transportation pump for experiments |
| CN112555201B (en) * | 2020-11-30 | 2021-11-16 | 西安理工大学 | Visual multistage mixed transportation pump for experiments |
| CN112762024A (en) * | 2021-01-11 | 2021-05-07 | 兰州理工大学 | Double-shaft bidirectional-transmission spiral axial-flow oil-gas mixed transmission pump |
| CN112762024B (en) * | 2021-01-11 | 2022-06-03 | 兰州理工大学 | Double-shaft bidirectional-transmission spiral axial-flow oil-gas mixed transmission pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108331760B (en) | 2020-06-26 |
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