CN102713302A - Submersible pump stage - Google Patents
Submersible pump stage Download PDFInfo
- Publication number
- CN102713302A CN102713302A CN2010800597031A CN201080059703A CN102713302A CN 102713302 A CN102713302 A CN 102713302A CN 2010800597031 A CN2010800597031 A CN 2010800597031A CN 201080059703 A CN201080059703 A CN 201080059703A CN 102713302 A CN102713302 A CN 102713302A
- Authority
- CN
- China
- Prior art keywords
- pump stage
- guide device
- blade
- impeller
- hole
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000009189 diving Effects 0.000 claims description 18
- 239000002245 particle Substances 0.000 description 14
- 239000007787 solid Substances 0.000 description 14
- 238000011010 flushing procedure Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
-
- 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/063—Multi-stage pumps of the vertically split casing type
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/688—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for liquid pumps
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
The submersible pump stage comprises an impeller comprising a front cover disk and a rear cover disk, blades arranged between the front and rear cover disks, a sleeve and a guide apparatus, which comprises a front cover disk and a rear cover disk and blades arranged between the front and rear cover disks. The rear cover disk of the guide apparatus is equipped with through-openings which extend in end surfaces and are arranged circumferentially. The number of through-openings is selected to be at least equal to the number of interblade channels. The openings are formed in such a way that liquid can flow from a front pocket of this submersible pump stage into each interblade channel of the guide apparatus of the previous stage. The use of the claimed device reduces the abrasive wear on the cover disk of the impeller and significantly extends the service life of the electric motor.
Description
Technical field
The present invention relates to the field of submerged centrifugal pump level; Said submerged centrifugal pump level is used to extract liquid media (comprising the liquid media that contains oil), and can be used for the relevant operation of mining with the fossil mineral that are liquid form (hydrocarbon that comprises oil well).
Background technique
The different designs scheme of known centrifugal pump stage for example, comprises those design proposals of describing among a.c.SU 576438, patent RU 2083880 and the SU 125408.
The shortcoming of known design is to lack to be used for the element of construction that prevents that the cavity of solid particle between rotary work surface and steady job surface from gathering.
The most similarly inventing with the present invention is the diving pump stage of describing among the patent RU 68613; Said diving pump stage contains impeller and guide device; Said impeller comprises front shroud and back shroud, is configured in blade, sleeve pipe between said front shroud and the said back shroud, said guide device comprise front shroud and back shroud and be configured in said front shroud and said back shroud between blade.The shortcoming of said device is along with solid particle gathers in preceding bag; Said solid particle causes the frictional force that quite big increase is arranged between the rotating part of said diving pump stage, the grinding loss that this can cause the collapse of electric motor and the cover plate of said impeller caused very big degree.
Summary of the invention
The purpose that requires the present invention to accomplish is to set up a kind ofly to have the device of simple designs and this device is applied in the different modifications of submersible pump.
Centrifugal and submersible pump level or oblique flow diving pump stage always has the counter-rotating design part as cavity between the surface of the front shroud of impeller and back shroud and guide device, before said cavity is called as bag with after bag.The precondition that has these design elements is must make rotating part and its standing part (guide device) coupling of step (impeller) and must minimize the leakage in the level.When extracting clean liquid through said pump stage; The counter-rotating influence of these cavitys is not high; If but the fluid that mechanical inclusion (such as sand or proppant) is arranged is fed to the level inlet; These cavitys begin to serve as the catcher or the trap of solid particle so, and solid particle gets into said bag through the gap between impeller and the diffuser.This Umklapp process is the characteristic of preceding bag, is because in order to prevent to stop impeller, the size of the top clearance between cover plate and guide device (diffuser) shell has surpassed the diameter that the solid particle in the liquid that is transmitted by pump possibly exist to the full extent.Along with solid particle accumulate in before in the bag, solid particle begins to cause the frictional force that quite big increase is arranged between the rotating part of diving pump stage, the grinding loss that this can cause the collapse of electric motor and the cover plate of said impeller caused very big degree.
Through carry out technological achievement that said technical solution reaches be guarantee before the compelled continuously flushing of bag in case prevent solid particle accumulate in said before in the bag, this has reduced impeller cover wearing and tearing and significant prolongation the working life of electric motor considerably.
Because of the impeller that uses in the said diving pump stage comprises front shroud and back shroud, is configured in blade, sleeve pipe and guide device between said front shroud and the said back shroud, said guide device comprise front shroud, back shroud and be configured in said front shroud and said back shroud between blade the fact and reach the technological achievement of being advocated.The back shroud of said guide device has the through hole that passes end face and dispose circumferentially.The number of through hole is selected to the number that equals passage between blade at least, and said hole guarantees that with a kind of liquid flows into from the preceding bag of said diving pump stage that the mode the passage forms between each blade of said guide device of first prime.
In addition, the number of through hole is selected to many times of number of passage between blade.
In addition, bore dia is in 1 millimeter to 10 millimeters scope, to select.
In addition, said bore dia is in 2 millimeters to 4 millimeters scope, to select.
Description of drawings
Illustrate the present invention with accompanying drawing, wherein Fig. 1 provides the view of diving pump stage, and the view of diving pump stage guide device is provided among the figure.
The diving pump stage is made up of impeller 1 and guide device 2.Said impeller is made up of front shroud 3 and back shroud 4, blade 5 and sleeve pipe 6.Similarly, said guide device is made up of front shroud 7 and back shroud 8, blade 9 and sleeve pipe 10.Fig. 1 also points out to be configured in the end face of guide device 2 back shrouds, and connects the position in " grinding " hole 11 of the cavity between the back shroud surface of the front shroud surface of the impeller of prime and first prime guide device.Also show the design and the configuration in " grinding " hole in the guide device among Fig. 2.
Embodiment
For fear of the collapse of electric motor, the compelled continuously flushing of bag before must guaranteeing.It is configuration special " grinding " hole that a preceding bag washes the option that carries into execution a plan, and said " grinding " hole connects the guide device of the first prime of preceding bag of diving pump stage and said submersible pump.In this case; The recirculation that before said liquid takes place in the bag is moved; This does not allow that solid particle gathers; And liquid transports out the guide device that the bag cavity arrives first prime through moving of " grinding " hole with solid particle, and solid particle is transported to the pump stage inlet once more from guide device.Because of between the diffuser of the preceding bag of prime and first prime, existing pressure difference to guarantee to extract liquid through " grinding " hole.The pressure difference value at place, " grinding " hole is substantially equal to the hydraulic pressure of diving pump stage.
Said " grinding " hole is used for reducing the grinding loss of said diving pump stage because the continuous circulation of the liquid of the preceding bag through said level is guaranteed in said " grinding " hole, therefore prevent solid particle accumulate in before in the bag.
These holes be with a kind of guarantee liquid in the past bag continuous-flow passed the end face of guide device back shroud by boring to the mode in the passage between each blade of guide device.Bore dia is in 1 millimeter to 10 millimeters scope, preferably is in 2 millimeters to 4 millimeters the scope to select, and this depends on:
Get into the diameter of the solid particle of pump;
The size of the last radial clearance between impeller and the level shell;
The hydraulic pressure of said level.
The configuration in the hole in the guide device passage and number can change so that adjust the flowing of liquid of the preceding bag of flushing diving level.
Claims (4)
1. diving pump stage that comprises impeller and guide device; Said impeller comprises front shroud and back shroud, is configured in blade, sleeve pipe between said front shroud and the said back shroud; Said guide device comprise front shroud, back shroud and be configured in said front shroud and said back shroud between blade; Said diving pump stage is characterised in that; The back shroud of said guide device has the through hole that passes end face and dispose circumferentially; In addition, the number of through hole is selected to the number that equals passage between blade at least, and said hole guarantees that with a kind of liquid flows into from the preceding bag of diving pump stage of the present invention that the mode the passage forms between each blade of said guide device of first prime.
2. level according to claim 1 is characterized in that, the number of through hole is selected to many times of number of passage between blade.
3. level according to claim 1 is characterized in that bore dia is in 1 millimeter to 10 millimeters scope, to select.
4. level according to claim 1 is characterized in that said bore dia is in 2 millimeters to 4 millimeters scope, to select.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009149028/06A RU2422679C1 (en) | 2009-12-30 | 2009-12-30 | Stage of submersible pump |
| RU2009149028 | 2009-12-30 | ||
| PCT/RU2010/000805 WO2011081575A1 (en) | 2009-12-30 | 2010-12-30 | Submersible pump stage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102713302A true CN102713302A (en) | 2012-10-03 |
| CN102713302B CN102713302B (en) | 2015-11-25 |
Family
ID=44226695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080059703.1A Expired - Fee Related CN102713302B (en) | 2009-12-30 | 2010-12-30 | submersible pump stage |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130058777A1 (en) |
| CN (1) | CN102713302B (en) |
| RU (1) | RU2422679C1 (en) |
| WO (1) | WO2011081575A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2670831C9 (en) * | 2015-09-25 | 2018-11-29 | Анна Михайловна Стареева | Kochetov swirl atomizer |
| RU2735978C1 (en) * | 2020-06-24 | 2020-11-11 | Игорь Олегович Стасюк | Stage of multistage vane pump |
| RU2754049C1 (en) * | 2020-12-12 | 2021-08-25 | Игорь Олегович Стасюк | Stage of a multi-stage vane pump |
| USD1026457S1 (en) * | 2021-02-04 | 2024-05-14 | Aerotest Limited | Cover for turbofan engine |
| RU206628U1 (en) * | 2021-03-06 | 2021-09-17 | Игорь Олегович Стасюк | Stage vane multistage diagonal oval pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB929790A (en) * | 1960-07-05 | 1963-06-26 | Tait Mfg Co | Improvements in or relating to centrifugal pumps |
| JPH11107987A (en) * | 1997-10-02 | 1999-04-20 | Mitsubishi Heavy Ind Ltd | Pump |
| JP2000230493A (en) * | 1999-02-08 | 2000-08-22 | Mitsubishi Heavy Ind Ltd | Pump |
| CN2787890Y (en) * | 2005-05-09 | 2006-06-14 | 杨双来 | Centrifugal sand pump |
| RU68613U1 (en) * | 2007-04-20 | 2007-11-27 | Schlumberger Technology B.V. | SUBMERSIBLE PUMP LEVEL OPERATING WHEEL GUIDING DEVICE FOR SUBMERSIBLE PUMP STEPS AND SUBMERSIBLE PUMP STEPS |
| CN101260888A (en) * | 2003-10-20 | 2008-09-10 | Itt制造企业公司 | Centrifugal pump |
| CN101280759A (en) * | 2007-03-20 | 2008-10-08 | 阿尔斯通水电设备法国公司 | Hydraulic machine and method for preventing this machine from abrasion |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1642914A (en) * | 1926-07-03 | 1927-09-20 | Layne & Bowler Corp | Sandproof bearing |
| JPS4830102A (en) * | 1971-08-21 | 1973-04-20 | ||
| DE3539883A1 (en) * | 1985-09-18 | 1987-03-26 | Hermetic Pumpen Gmbh | Self-priming centrifugal pump |
| GB2236696B (en) * | 1989-09-20 | 1993-04-14 | Central Electr Generat Board | A liquid separator |
| RU2303167C1 (en) * | 2005-12-09 | 2007-07-20 | Закрытое Акционерное Общество "Новомет-Пермь" | Stage of submersible centrifugal pump for production of oil |
| RU74674U1 (en) * | 2008-01-17 | 2008-07-10 | "Центр Разработки Нефтедобывающего Оборудования (Црно)" | SUBMERSIBLE Borehole MULTI-STAGE CENTRIFUGAL PUMP AND PUMP WHEEL |
| US8801360B2 (en) * | 2009-09-09 | 2014-08-12 | Baker Hughes Incorporated | Centrifugal pump with thrust balance holes in diffuser |
-
2009
- 2009-12-30 RU RU2009149028/06A patent/RU2422679C1/en not_active IP Right Cessation
-
2010
- 2010-12-30 US US13/519,566 patent/US20130058777A1/en not_active Abandoned
- 2010-12-30 CN CN201080059703.1A patent/CN102713302B/en not_active Expired - Fee Related
- 2010-12-30 WO PCT/RU2010/000805 patent/WO2011081575A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB929790A (en) * | 1960-07-05 | 1963-06-26 | Tait Mfg Co | Improvements in or relating to centrifugal pumps |
| JPH11107987A (en) * | 1997-10-02 | 1999-04-20 | Mitsubishi Heavy Ind Ltd | Pump |
| JP2000230493A (en) * | 1999-02-08 | 2000-08-22 | Mitsubishi Heavy Ind Ltd | Pump |
| CN101260888A (en) * | 2003-10-20 | 2008-09-10 | Itt制造企业公司 | Centrifugal pump |
| CN2787890Y (en) * | 2005-05-09 | 2006-06-14 | 杨双来 | Centrifugal sand pump |
| CN101280759A (en) * | 2007-03-20 | 2008-10-08 | 阿尔斯通水电设备法国公司 | Hydraulic machine and method for preventing this machine from abrasion |
| RU68613U1 (en) * | 2007-04-20 | 2007-11-27 | Schlumberger Technology B.V. | SUBMERSIBLE PUMP LEVEL OPERATING WHEEL GUIDING DEVICE FOR SUBMERSIBLE PUMP STEPS AND SUBMERSIBLE PUMP STEPS |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2422679C1 (en) | 2011-06-27 |
| CN102713302B (en) | 2015-11-25 |
| WO2011081575A1 (en) | 2011-07-07 |
| US20130058777A1 (en) | 2013-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20151125 Termination date: 20161230 |