CN2584900Y - Anti-block uniflow valve for electric submersible pump - Google Patents
Anti-block uniflow valve for electric submersible pump Download PDFInfo
- Publication number
- CN2584900Y CN2584900Y CN 02256071 CN02256071U CN2584900Y CN 2584900 Y CN2584900 Y CN 2584900Y CN 02256071 CN02256071 CN 02256071 CN 02256071 U CN02256071 U CN 02256071U CN 2584900 Y CN2584900 Y CN 2584900Y
- Authority
- CN
- China
- Prior art keywords
- valve
- submersible pump
- electric submersible
- bonnet
- valve bonnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an anti-clogging check valve for an electric submersible pump used for petroleum industry, which is suitable for an oil well from which the petroleum is extracted by the electric submersible pump. The anti-clogging check valve for an electric submersible pump is provided with a valve ball, a valve base and a valve cover, wherein the valve base is provided with a central through hole, the valve cover is provided with a liquid flow hole, the valve ball is installed in the valve cover and is above the valve base, an isolation pipe is installed on the top part of the valve cover and outer pipes are installed outside the valve cover and the isolation pipe. When the electric pump is stopped by faults, sand and other impurities in the oil pipe deposit in an annular space between the isolation pipe and each of the outer pipes and can not bury the valve ball and an oil flow path. When the electric pump is switched on again, the motor can be guaranteed to be started in a low load in order to perform the function of protecting a machine set, and thus, the pump check period of the electric submersible pump is extended. Therefore, manufacture cost and worker labor intensity are reduced and the utility model has simple structure and outstanding effects.
Description
Technical field
The utility model relates to the oil production equipment of petroleum industry, and particularly the electric submersible pump anti-plugging check valve is applicable to the oil well with electric submersible pumping.
Technical background
Along with the oil field enters development late stage, electric pump is big because of its discharge capacity, the lift height, convenient management and become a kind of extract increase oil the main mode of production.When being lowered to the electric pump flow string, require to load onto one-way valve one, be convenient to verify whether production tube misses, two, be convenient to motor and starting near under the zero load on the top of electric pump.At present, the one-way valve of using on the oil well with electric submersible pumping is because aspect structure and processing, often poorly sealed, whether very difficult checking flow string seals; Motor causes motor overload easily or burns motor when restarting.Especially in sand output well, when electric pump was shut down, the sand in the oil pipe or other sludges just can be deposited on the one-way valve; bury the oily passage of stream; make that to open load once more big, cause and open difficulty or overload, even cause downhole production accidents such as burning motor, cable breakdown.
Summary of the invention
The purpose of this utility model is that invention a kind of big runner, sand control bury, the electric submersible pump anti-plugging check valve of anti-plugging, good sealing effect, reaches the purpose that prolongs electric pump pump detection period, protection electric pump unit.
The present technique solution can reach above-mentioned purpose: the electric submersible pump anti-plugging check valve, have valve ball, valve seat and valve bonnet, and central through bore is arranged on the valve seat, liquid flow hole is arranged on the valve bonnet, valve ball is loaded in the valve bonnet, valve seat above, isolated tube is installed at the top of valve bonnet, outer tube is installed in the outside of valve bonnet and isolated tube.
After using the utility model, when electric pump was shut down for some reason, the sand in the oil pipe and other contamination precipitation can not bury valve ball and the oily passage of stream in the annular space between isolated tube and the outer tube, can guarantee when starting shooting once more that motor starts under less load, thereby play the effect of protection unit; Owing to adopt special big runner valve ball, valve seat, when guaranteeing the single current valve seal, the flow rate of liquid that flows through valve ball is reduced, reduced the abrasion of washing away to valve ball, prolonged the pump detection period of electric submersible pump.Thereby cost of production and working strength of workers have been reduced.The utility model is simple in structure, and effect is remarkable.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, the electric submersible pump anti-plugging check valve, have valve ball 5, valve seat 6 and valve bonnet 4, on the valve seat 6 central through bore is arranged, on the valve bonnet 4 liquid flow hole is arranged, valve ball 5 is loaded in the valve bonnet 4, valve seat 6 above, isolated tube 2 is installed at the top of valve bonnet 4, outer tube 1 is installed in the outside of valve bonnet 4 and isolated tube 2.Valve bonnet 4 is a cylinder that the bottom external diameter is big, internal diameter is little, and the internal diameter of its bottom internal diameter and valve seat 6 is equal to, and valve seat 6 occupies on the step of cylindrical shell formation of the bottom internal diameter of valve bonnet 4 and valve bonnet 4.The cylindrical shell of valve bonnet 4 be provided with liquid flow hole several; Baffle plate 3 is installed at the cylindrical shell top, baffle plate 3 be provided with liquid flow hole several.Isolated tube 2 be installed on valve bonnet 4 top flap 3 above, Guan Dingwei taper top, pipe shaft be provided with liquid flow hole several.Outer tube 1 connects installation with the bottom external diameter of valve bonnet 4, and pipe shaft is longer than the pipe top of isolated tube 2, forms the sedimentation annular space with valve bonnet 4 and isolated tube 2.In process of production, well liquid is by valve ball 5, valve seat 6, and the eyelet on process guard shield 4 and baffle plate 3, the isolated tube 2 flows into the top oil pipe.When electric pump is shut down for some reason, sand in the oil pipe and other contamination precipitation are in the annular space between isolated tube 2 and the urceolus 1, can not bury the stream oil passage on valve ball 5 and the valve seat 6, can guarantee when starting shooting once more that motor starts under less load, thereby play the effect of protection unit; Because the oil flow channel on the valve seat 6 is bigger, when guaranteeing the single current valve seal, the flow rate of liquid that flows through valve ball 5 is reduced, reduced the abrasion of washing away to valve ball 5.
Claims (5)
1, electric submersible pump anti-plugging check valve, have valve ball (5), valve seat (6) and valve bonnet (4), valve seat has central through bore on (6), valve bonnet has liquid flow hole on (4), valve ball (5) is loaded in the valve bonnet (4), valve seat (6) above, isolated tube (2) is installed at the top that it is characterized in that valve bonnet (4), and outer tube (1) is installed in the outside of valve bonnet (4) and isolated tube (2).
2, electric submersible pump anti-plugging check valve according to claim 1, it is characterized in that valve bonnet (4) is a cylinder that the bottom external diameter is big, internal diameter is little, the internal diameter of its bottom internal diameter and valve seat (6) is equal to, and valve seat (6) occupies on the step of cylindrical shell formation of the bottom internal diameter of valve bonnet (4) and valve bonnet (4).
3, electric submersible pump anti-plugging check valve according to claim 1 and 2, the cylindrical shell that it is characterized in that valve bonnet (4) be provided with liquid flow hole several; Baffle plate (3) is installed at the cylindrical shell top, baffle plate (3) be provided with liquid flow hole several.
4, electric submersible pump anti-plugging check valve according to claim 1, it is characterized in that isolated tube (2) be installed on valve bonnet (4) top flap (3) above, Guan Dingwei taper top, pipe shaft be provided with liquid flow hole several.
5, electric submersible pump anti-plugging check valve according to claim 1 is characterized in that outer tube (1) connects installation with the bottom external diameter of valve bonnet (4), and pipe shaft is longer than the pipe top of isolated tube (2), forms the sedimentation annular space with valve bonnet (4) and isolated tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02256071 CN2584900Y (en) | 2002-12-20 | 2002-12-20 | Anti-block uniflow valve for electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02256071 CN2584900Y (en) | 2002-12-20 | 2002-12-20 | Anti-block uniflow valve for electric submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584900Y true CN2584900Y (en) | 2003-11-05 |
Family
ID=33724435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02256071 Expired - Fee Related CN2584900Y (en) | 2002-12-20 | 2002-12-20 | Anti-block uniflow valve for electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584900Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390425C (en) * | 2004-03-25 | 2008-05-28 | 东营市东营区创新科技有限公司 | Self-cleaning desilting device |
-
2002
- 2002-12-20 CN CN 02256071 patent/CN2584900Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390425C (en) * | 2004-03-25 | 2008-05-28 | 东营市东营区创新科技有限公司 | Self-cleaning desilting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |