CN103161426A - Divided-flow check valve - Google Patents
Divided-flow check valve Download PDFInfo
- Publication number
- CN103161426A CN103161426A CN2011104195151A CN201110419515A CN103161426A CN 103161426 A CN103161426 A CN 103161426A CN 2011104195151 A CN2011104195151 A CN 2011104195151A CN 201110419515 A CN201110419515 A CN 201110419515A CN 103161426 A CN103161426 A CN 103161426A
- Authority
- CN
- China
- Prior art keywords
- piston
- guide rod
- valve
- spool
- valve body
- 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.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a divided-flow check valve for an oil field electric submersible pump. The divided-flow check valve is formed by a lower connector, a valve body and an upper connector, wherein the lower connector, the valve body and the upper connector are connected with one another in a threaded mode. A guide rod is positioned inside a valve core, a pin penetrates through the bottom of the valve core and the bottom of the guide rod to fasten the valve core and the guide rod, the valve core is inserted in a valve seat, a small spring is positioned at the upper end inside the valve core and encircles the guide rod, a small spring pad is mounted on the small spring, a piston is inserted in the small spring, the valve seat is connected with the piston in a threaded mode, a filter is mounted in a hole in the piston, a piston guide cap is mounted on the piston, and a seal cover is arranged inside a valve body. When a well is opened, the piston guide cap butts against the seal cover to form a seal structure, and when the well is closed, the butt joint part of the piston guide cap and the seal cover is opened, falling liquid flows into an oil casing annulus, attachment and scaling of sand grains are reduced, the loss of a traditional check valve is improved, damage to the pump caused by liquid backflow is prevented, therefore the pump is protected, well yield is increased, and the divided-flow check valve has a good effect in prolonging pump inspection period of the electric submersible pump.
Description
Technical field
The present invention relates to a kind of shunting ball-and-seat for the oilfield electric submersible pump well.
Background technology
Traditional electric pump well ball-and-seat is limit because of self structure and material, corrosion-resistant and scouring capability is relative deficiency all, when sand production, when fouling is serious, can grasp into poorly sealedly, there is leakage phenomena to occur, when leakage is serious, not only to the pump injury, cause starting current excessive because the turn on pump starting torque increases when serious, puncture cable, motor damage, impact is produced; When on oil well during operation, also or because of factors such as oil are thick bleeder normally can't be opened, affect operation; When oil well had the blowing ability, as phenomenon occurs to shut down, liquid affected blowing production because the impact of the impeller in pump has hindered the liquid blowing.Existing problems: there is leakage phenomena in the traditional electrical pump sump, and pump is produced potential harm, and impact is normally produced, and increases maintenance and operating cost; After shutdown, can't normally be given rise to ground by pump from jetting liquid, affected crude output; When bleeder can't normally be opened, increase task difficulty, extend the activity duration.
Summary of the invention
The defective that exists for overcoming above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of shunting ball-and-seat, improves the problem of traditional electric submersible pump ball-and-seat leakage, increases oil well output, extends the pump detection period of electric pump well; The phenomenon that when solving oil well operation, bleeder can't normally be opened has shortened the activity duration; The impact of impeller when solving the electric pump shutdown in pump on the electric pump well blowing increases oil well output.
For solving the problems of the technologies described above, shunting ball-and-seat of the present invention mutually is threaded and is formed by lower contact 1, valve body 3, top connection 21, wherein, above-mentioned valve body inside is comprised of guide rod 5, valve seat 6, spool 8, little spring 9, little spring pad 10, spring 12, piston 13, strainer 14, piston guide cap 16 and sealing shroud 19; Above-mentioned guide rod 5 is positioned at spool 8 inside, pin 4 passes spool 8 bottoms and guide rod 5 bottom fixed spools 8 and guide rod 5, this spool 8 inserts in valve seat 6, little spring 9 is positioned at the upper end of spool 8 inside and around guide rod 5, be mounted with little spring pad 10 above little spring 9, piston 13 inserts in springs 12, and valve seat 6 is threaded with piston 13, and strainer 14 is arranged in hole on piston 13; Piston guide cap 16 is arranged on piston 13, and sealing shroud 19 is in valve body 3 inside.
In installing on above-mentioned valve body 3, fastening its of six screws 2 is threaded with lower contact 1, top connection 21.
7 sealings of O circle are installed between above-mentioned guide rod 5 and spool 8; Piston 13 upper and lowers respectively and O circle sealing is set between valve body 3; 20 sealings of O circle are set between top connection 21 and sealing shroud 19.
Above-mentioned cable pressing plate 18 use screws 17 are fixed on valve body 3.
Electric pump well for blowing is produced after adopting shunting ball-and-seat of the present invention, can not affect blowing production when electric pump is shut down, the assurance of maximum possible oil well output; Improve the leakage of ball-and-seat, to pumping up protective effect, extend pump detection period, reduce operation number of times and operating cost; Shorten the activity duration, thereby increased the production time, increased output.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
The structural representation of Fig. 1 shunting ball-and-seat of the present invention.
The specific embodiment
Shunting ball-and-seat of the present invention mutually is threaded and is formed by lower contact 1, valve body 3, top connection 21, wherein, above-mentioned valve body inside is comprised of guide rod 5, valve seat 6, spool 8, little spring 9, little spring pad 10, spring 12, piston 13, strainer 14, piston guide cap 16 and sealing shroud 19; Above-mentioned guide rod 5 is positioned at spool 8 inside, pin 4 passes spool 8 bottoms and guide rod 5 bottom fixed spools 8 and guide rod 5, this spool 8 inserts in valve seat 6, little spring 9 is positioned at the upper end of spool 8 inside and around guide rod 5, be mounted with little spring pad 10 above little spring 9, piston 13 inserts in springs 12, and valve seat 6 is threaded with piston 13, and strainer 14 is arranged in hole on piston 13; Piston guide cap 16 is arranged on piston 13, and sealing shroud 19 is in valve body 3 inside.
In installing on above-mentioned valve body 3, fastening its of six screws 2 is threaded with lower contact 1, top connection 21.
7 sealings of O circle are installed between above-mentioned guide rod 5 and spool 8; Piston 13 upper and lowers respectively and O circle sealing is set between valve body 3; 20 sealings of O circle are set between top connection 21 and sealing shroud 19.
Above-mentioned cable pressing plate 18 use screws 17 are fixed on valve body 3.
as shown in Figure 1, during use, shunting ball-and-seat of the present invention is arranged on electric submersible pump, when driving a well, it is inner that liquid is given rise to the shunting ball-and-seat, liquid rises and promotes spool 8 motions, liquid flows through from the special construction of spool 8, guide rod passes at valve core inside, spool has little spring in top, therefore can slide on guide rod top in spool top, the spool bottom is cylindrical, bottom lowermost end chamfering is domatic is 45 °, run through for square opening in the middle of the spool lower cylindrical, when moving on the liquid-driving spool, flow into the square hole of spool bottom from the spool surrounding, due to the sealing of spool upper piston, liquid can flow nowhere, can only continue to promote spool top, bottom, spool top structure chamfering is domatic is 45 °, and compression little spring, then the spool upper and lower separates the flow pass space, liquid therefrom flows into piston, continue at last to flow out the shunting ball-and-seat, enter oil pipe, valve seat 6 moves along with spool 8, drive piston guide cap 16 docks with sealing shroud 19, form sealing, when stopping well, liquid falls after rise, makes spool 8 counter motions, and piston 13 also recovers because of the elastic deformation of Action of Gravity Field and spring 12, drives valve seat 6 and falls after rise, and hermetic unit is opened, and whereabouts liquid flows into the oil jacket annular space.
The above has done detailed description to embodiments of the present invention, but the present invention is not limited to above-mentioned embodiment, in the ken that affiliated technical field those of ordinary skill possesses, can also make different the variation under the prerequisite that does not break away from aim of the present invention.
Claims (4)
1. a shunting ball-and-seat, mutually be threaded and formed by lower contact (1), valve body (3), top connection (21), it is characterized in that:
Described valve body inside is comprised of guide rod (5), valve seat (6), spool (8), little spring (9), little spring pad (10), spring (12), piston (13), strainer (14), piston guide cap (16) and sealing shroud (19);
described guide rod (5) is positioned at spool (8) inside, pin (4) passes spool (8) bottom and guide rod (5) bottom fixed spool (8) and guide rod (5), this spool (8) inserts in valve seat (6), little spring (9) is positioned at the inner upper end of spool (8) and around guide rod (5), be mounted with little spring pad (10) above little spring (9), piston (13) inserts in spring (12), valve seat (6) is threaded with piston (13), strainer (14) is arranged in hole on piston (13), piston guide cap (16) is arranged on piston (13), and sealing shroud (19) is in valve body (3) inside.
2. shunting ball-and-seat according to claim 1, is characterized in that: interior fastening its of six screws (2) is installed on described valve body (3) is threaded with lower contact (1), top connection (21).
3. shunting ball-and-seat according to claim 1, is characterized in that: O circle (7) sealing is installed between described guide rod (5) and spool (8); Piston (13) upper and lower respectively and O circle (11,15) sealing is set between valve body (3); O circle (20) sealing is set between top connection (21) and sealing shroud (19).
4. shunting ball-and-seat according to claim 1, it is characterized in that: described cable pressing plate (18) is fixed on valve body (3) with screw (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104195151A CN103161426A (en) | 2011-12-15 | 2011-12-15 | Divided-flow check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104195151A CN103161426A (en) | 2011-12-15 | 2011-12-15 | Divided-flow check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103161426A true CN103161426A (en) | 2013-06-19 |
Family
ID=48584921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104195151A Pending CN103161426A (en) | 2011-12-15 | 2011-12-15 | Divided-flow check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103161426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777764A (en) * | 2020-12-17 | 2021-05-11 | 重庆奥思赛斯环保科技有限公司 | Enhancement mode hollow fiber membrane filter equipment |
| CN113357140A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Double-seal check valve of electric submersible pump and sealing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429747A (en) * | 1981-09-01 | 1984-02-07 | Otis Engineering Corporation | Well tool |
| CA2067587A1 (en) * | 1991-04-30 | 1992-10-31 | Kevin R. Manke | Bypass valve |
| CN1356452A (en) * | 2002-01-04 | 2002-07-03 | 中国石油天然气总公司石油勘探开发科学研究院 | High-temperature thermal recovery packer |
| CN201031662Y (en) * | 2007-04-11 | 2008-03-05 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Down-hole controllable type boring tool by-pass valve |
| CN201212375Y (en) * | 2008-06-18 | 2009-03-25 | 北京华油油气技术开发有限公司 | Check valve |
| CN201810266U (en) * | 2010-10-15 | 2011-04-27 | 中国石油化工股份有限公司 | Backflow preventing check valve with low resistance consumption |
| CN202500529U (en) * | 2011-12-15 | 2012-10-24 | 中国石油天然气股份有限公司 | Divided-flow check valve |
-
2011
- 2011-12-15 CN CN2011104195151A patent/CN103161426A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429747A (en) * | 1981-09-01 | 1984-02-07 | Otis Engineering Corporation | Well tool |
| CA2067587A1 (en) * | 1991-04-30 | 1992-10-31 | Kevin R. Manke | Bypass valve |
| CN1356452A (en) * | 2002-01-04 | 2002-07-03 | 中国石油天然气总公司石油勘探开发科学研究院 | High-temperature thermal recovery packer |
| CN201031662Y (en) * | 2007-04-11 | 2008-03-05 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Down-hole controllable type boring tool by-pass valve |
| CN201212375Y (en) * | 2008-06-18 | 2009-03-25 | 北京华油油气技术开发有限公司 | Check valve |
| CN201810266U (en) * | 2010-10-15 | 2011-04-27 | 中国石油化工股份有限公司 | Backflow preventing check valve with low resistance consumption |
| CN202500529U (en) * | 2011-12-15 | 2012-10-24 | 中国石油天然气股份有限公司 | Divided-flow check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777764A (en) * | 2020-12-17 | 2021-05-11 | 重庆奥思赛斯环保科技有限公司 | Enhancement mode hollow fiber membrane filter equipment |
| CN113357140A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Double-seal check valve of electric submersible pump and sealing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110285073B (en) | High-reliability submersible pump | |
| CN103161426A (en) | Divided-flow check valve | |
| CN202500529U (en) | Divided-flow check valve | |
| CN101985975B (en) | Self-circulation thin oil lubricating system for square plansifter transmission gear | |
| CN107769431A (en) | A kind of cross motor | |
| CN107905765B (en) | Top drive splash-proof valve | |
| CN109610546A (en) | Bed-silt cleaning plant | |
| CN205605264U (en) | High power diesel engine lubricating oil filter equipment | |
| CN210461089U (en) | High-reliability submersible pump | |
| CN209669962U (en) | Bed-silt cleaning plant | |
| CN103573223B (en) | A kind of electric submersible pump automatically terminates the device of gas lock | |
| CN202249942U (en) | Oil-water-well casing swabbing tool | |
| CN108086956B (en) | Novel submersible electric plunger pump | |
| CN201627750U (en) | Special sealing pad for coupling installation of submersible pump | |
| CN202510345U (en) | Sand blocking device of oil well pump | |
| CN205012966U (en) | Bailing well head device | |
| CN201818488U (en) | Standing valve for oil-well pump | |
| CN203175843U (en) | Sliding sand preventing device of oil well pump | |
| CN216554478U (en) | Sand-proof check valve for deep well submersible pump | |
| CN202914309U (en) | Sealing device for shaft extension part of direct drive motor of screw pump | |
| CN202402327U (en) | Mechanical seal washing structure of double suction pump and capable of filtering impurities | |
| CN202500751U (en) | Tertiary oil recovery oil well pump | |
| CN202832314U (en) | Novel well flushing device | |
| CN104201860A (en) | Detachable electromagnetic pump | |
| CN214661037U (en) | Spiral protection device for electric pump oil seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |