CN106545487A - A kind of hollow oil well pump of ring valve overhead type - Google Patents
A kind of hollow oil well pump of ring valve overhead type Download PDFInfo
- Publication number
- CN106545487A CN106545487A CN201510588924.2A CN201510588924A CN106545487A CN 106545487 A CN106545487 A CN 106545487A CN 201510588924 A CN201510588924 A CN 201510588924A CN 106545487 A CN106545487 A CN 106545487A
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- China
- Prior art keywords
- ring valve
- assembly
- plunger
- pump barrel
- ring
- 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.)
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Abstract
The invention discloses a kind of hollow oil well pump of ring valve overhead type, including pump barrel assembly, assembly for plunger, the assembly for plunger is arranged on inside pump barrel assembly, also include ring valve assembly of the fixing seal on pump barrel assembly, position of the ring valve assembly on the outside of assembly for plunger upper semisection and between pump barrel assembly and assembly for plunger.The ring valve assembly includes ring valve, ring valve seat, oil-release valve cover, ring valve cover, lock claw, the ring valve is tubular structure, ring valve endoporus inwall is coordinated for clearance seal with the outer surface of the pull bar of assembly for plunger, the outside of ring valve arranges oil-release valve cover, the oil-release valve cover lower end connection ring valve bonnet, lock claw being set between the ring valve cover lower end outside and pump barrel assembly, the lock tube being engaged with lock claw being provided with the pump barrel assembly, lock claw is sealingly fastened in lock tube.Present invention substantially eliminate the resistance that travelling valve is opened, realizes that roofbolt is smoothly descending, extend roofbolt service life, reduce the problem of roofbolt fracture.
Description
Technical field
The present invention relates to oil well pump, the hollow oil well pump of specifically a kind of ring valve overhead type.
Background technology
Rod-pumped well in down stroke, because cross valve resistance and the oil well pump travelling valve of liquid stream frictional resistance, well liquid open resistance etc.
Affect, roofbolt has bending deformation, the disconnected accident of bar occurs often.The hydraulic feedback formula oil well pump for adopting at present, is only capable of
Alleviate the pressurized situation of roofbolt in certain degree, simultaneously because the restriction of structure, it is impossible to realize the huge discharge under equal load
Extract.
The content of the invention
It is an object of the invention to provide a kind of hollow oil well pump of ring valve overhead type, essentially eliminates the resistance of travelling valve unlatching
Power, realizes that roofbolt is smoothly descending, extends roofbolt service life, reduces the problem of roofbolt fracture.
In order to reach above-mentioned purpose, following technical scheme is present invention employs, a kind of hollow oil well pump of ring valve overhead type, bag
Pump barrel assembly, assembly for plunger are included, the assembly for plunger is arranged on inside pump barrel assembly, also total in pump barrel including fixing seal
Into upper ring valve assembly, the ring valve assembly is located on the outside of assembly for plunger upper semisection and between pump barrel assembly and assembly for plunger
Position.
The ring valve assembly includes ring valve, ring valve seat, oil-release valve cover, ring valve cover, lock claw, and the ring valve is tubular structure,
Ring valve endoporus inwall is coordinated for clearance seal with the outer surface of the pull bar of assembly for plunger, and the outside of ring valve arranges oil-release valve cover,
The ring valve bottom is seated on ring valve seat, the bottom connection oil-release valve cover of ring valve seat, oil-release valve cover lower end connection ring
Valve bonnet, arranges lock claw, is provided with and lock claw phase on the pump barrel assembly between the ring valve cover lower end outside and pump barrel assembly
The lock tube of cooperation, lock claw are sealingly fastened in lock tube.
The lock claw bottom is provided with the elastic shaft sleeve of elongated slot, and top loads spacer ring and leather cup.
The lock claw is positioned by the conical surface with lock tube, by lock claw and the interference fit tensioner of lock tube.
Pull bar that the assembly for plunger includes being sequentially connected from top to bottom, plunger, weighted lever, on the plunger body is arranged
Travelling valve, lower travelling valve, the upper end of the plunger are added by liquid inlet joint connection by going out liquid joint cylinder lever connecting rod, lower end
Weight bar.
Extension pipe that the pump barrel assembly includes being sequentially connected from top to bottom, lock tube, pump barrel.
Compared to prior art, the invention has the advantages that：
The present invention can connect weighted lever in the lower end of plunger and help roofbolt descending, in down stroke, as the ring valve on top exists
Can close rapidly in the presence of self gravitation and pull bar and ring valve frictional force, effect of the travelling valve on plunger in pump intake pressure
Open by only needing to overcome self gravitation under, eliminate the head of liquid of travelling valve unlatching, prevented substantially bending for roofbolt
Bent deformation, extends sucker rod service life, additionally, the automatic draining of realization is made by upper carrying after sucker rod, simplifies
Tubular column structure, improves the reliability of system work.
Description of the drawings
Fig. 1 is a kind of structural representation of the hollow oil well pump of ring valve overhead type of the present invention.
In figure：1. extension pipe, 2. pull bar, 3. oil-release valve cover, 4. ring valve, 5. ring valve seat, 6. ring valve cover, 7. lock claw, 8.
Lock tube, 9. upward-traveling valves, 10. plunger, 11. lower travelling valves, 12. pump barrels, 13. liquid inlet joints.
Specific embodiment
Detailed description for the present invention and technology contents, coordinate description of the drawings as follows, but accompanying drawing only provides and refers to and say
It is bright to be used, not for being any limitation as to the present invention.
According to Fig. 1, a kind of hollow oil well pump of ring valve overhead type, including pump barrel assembly, assembly for plunger, the assembly for plunger
It is arranged on inside pump barrel assembly, also the ring valve assembly including fixing seal on pump barrel assembly, the ring valve assembly is located at post
On the outside of plug assembly upper semisection and position between pump barrel assembly and assembly for plunger.The assembly for plunger is included from top to bottom successively
The pull bar 2 of connection, plunger 10, weighted lever, the plunger body arrange upward-traveling valves 9, lower travelling valve 11, the post
The upper end of plug connects weighted lever by liquid inlet joint 13 by going out liquid joint cylinder lever connecting rod, lower end.The pump barrel assembly includes
The extension pipe 1 that is sequentially connected from top to bottom, lock tube 8, pump barrel 12.
Ring valve assembly includes ring valve 4, ring valve seat 5, oil-release valve cover 3, ring valve cover 6, lock claw 7, and the ring valve 4 is cylinder
Shape structure, ring valve endoporus inwall are coordinated for clearance seal with the outer surface of the pull bar of assembly for plunger, and the outside of ring valve is arranged out
Fuel tap cover 3,4 bottom of the ring valve are seated on ring valve seat, the bottom connection oil-release valve cover of ring valve seat, the oil-release valve cover
Lower end connection ring valve bonnet 6, arranges lock claw 7, sets on the pump barrel assembly between the ring valve cover lower end outside and pump barrel assembly
The lock tube 8 being engaged with lock claw is equipped with, lock claw is sealingly fastened in lock tube.The lock claw bottom is provided with the elastic shaft sleeve of elongated slot,
Top loads spacer ring and leather cup.The lock claw is positioned by the conical surface with lock tube, is risen by interference fit of the lock claw with lock tube
Tightly.
The hollow oil well pump of ring valve overhead type, is made up of assembly for plunger and pump barrel assembly.Assembly for plunger is by pull bar 2, fuel-displaced
Valve bonnet 3, ring valve 4, ring valve seat 5, ring valve cover 6, lock claw 7, upward-traveling valves 9, plunger 10, lower travelling valve 11 and enter
Liquid joint 13 is constituted.Pump barrel assembly is made up of extension pipe 1, lock tube 8 and pump barrel 12.Described lock claw 7 and lock tube 8
Between positioned by the conical surface of bottom, and by elastic cell body tensioner on lock tube 8.
After assembly for plunger enters pump barrel assembly under, oil-release valve cover 3 is collided by the top connection of pull bar 2, lock claw 7 is pressed into
In lock tube 8, the leather cup on lock claw part 6 is contacted with lock tube 8, is completed by oil-release valve cover 3, ring valve 4, ring valve seat 5,
The positioning of the ring valve assembly of the composition of ring valve cover 6 and outside sealing.Weighted lever can be connected in the bottom of liquid inlet joint 13, helped
Roofbolt is descending.In down stroke, ring valve 4 is closed by itself gravity and the frictional force between pull bar rapidly, plunger 8
On cavity volume increase, in the presence of pump intake pressure, well liquid is backed down upper and lower travelling valve by liquid inlet joint 13 and enters pump
In cylinder 12.In up stroke, upper and lower travelling valve cuts out, and the well liquid on plunger 10 is backed down ring valve 4 and enters the oil on pump
In pipe, a pumping process is completed.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other use this
The equivalence changes of bright patent spirit, all should all belong to the scope of the claims of the present invention.
Claims (6)
1. the hollow oil well pump of a kind of ring valve overhead type, including pump barrel assembly, assembly for plunger, the assembly for plunger is arranged on inside pump barrel assembly, it is characterized in that, also include ring valve assembly of the fixing seal on pump barrel assembly, position of the ring valve assembly on the outside of assembly for plunger upper semisection and between pump barrel assembly and assembly for plunger.
2. the hollow oil well pump of a kind of ring valve overhead type according to claim 1, it is characterized in that, the ring valve assembly includes ring valve, ring valve seat, oil-release valve cover, ring valve cover, lock claw, the ring valve is tubular structure, ring valve endoporus inwall is coordinated for clearance seal with the outer surface of the pull bar of assembly for plunger, the outside of ring valve arranges oil-release valve cover, the ring valve bottom is seated on ring valve seat, the bottom connection oil-release valve cover of ring valve seat, the oil-release valve cover lower end connection ring valve bonnet, between the ring valve cover lower end outside and pump barrel assembly, lock claw is set, the lock tube being engaged with lock claw is provided with the pump barrel assembly, lock claw is sealingly fastened in lock tube.
3. the hollow oil well pump of a kind of ring valve overhead type according to claim 2, it is characterised in that the lock claw bottom is provided with the elastic shaft sleeve of elongated slot, top loads spacer ring and leather cup.
4. the hollow oil well pump of a kind of ring valve overhead type according to claim 3, it is characterised in that the lock claw is positioned by the conical surface with lock tube, by the interference fit tensioner of lock claw and lock tube.
5. the hollow oil well pump of a kind of ring valve overhead type according to claim 1, it is characterized in that, pull bar that the assembly for plunger includes being sequentially connected from top to bottom, plunger, weighted lever, the plunger body arranges upward-traveling valves, lower travelling valve, by going out liquid joint cylinder lever connecting rod, lower end connects weighted lever by liquid inlet joint for the upper end of the plunger.
6. the hollow oil well pump of a kind of ring valve overhead type according to claim 1, it is characterised in that extension pipe that the pump barrel assembly includes being sequentially connected from top to bottom, lock tube, pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588924.2A CN106545487A (en) | 2015-09-16 | 2015-09-16 | A kind of hollow oil well pump of ring valve overhead type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588924.2A CN106545487A (en) | 2015-09-16 | 2015-09-16 | A kind of hollow oil well pump of ring valve overhead type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106545487A true CN106545487A (en) | 2017-03-29 |
Family
ID=58362632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510588924.2A Pending CN106545487A (en) | 2015-09-16 | 2015-09-16 | A kind of hollow oil well pump of ring valve overhead type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253072A (en) * | 2018-10-31 | 2019-01-22 | 延安奇源石油工程技术服务有限公司 | A kind of double anti-oil well pumps |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464195A (en) * | 2002-06-07 | 2003-12-31 | 中国石油天然气股份有限公司 | Combination oil-well pump |
| CN1580559A (en) * | 2003-08-04 | 2005-02-16 | 韩惠临 | Multifunctional high-efficiency oil pump |
| CN2775289Y (en) * | 2004-04-13 | 2006-04-26 | 孔宪春 | Spring lock jaw repeat seating and sealing packer |
| CN101205900A (en) * | 2006-12-22 | 2008-06-25 | 金昌昊 | High-inclination horizontal well oil pump |
| CN201474933U (en) * | 2009-08-20 | 2010-05-19 | 苏国卿 | Feedback oil well pump |
| CN103807151A (en) * | 2012-11-06 | 2014-05-21 | 中国石油化工股份有限公司 | Continuous lifting pump for pumping unit and lifting method thereof |
| CN203670171U (en) * | 2014-01-24 | 2014-06-25 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Annular-valve type anti-cavitation oil well pump |
| CN204371613U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of pumping-assistant pump for oil well pump |
-
2015
- 2015-09-16 CN CN201510588924.2A patent/CN106545487A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464195A (en) * | 2002-06-07 | 2003-12-31 | 中国石油天然气股份有限公司 | Combination oil-well pump |
| CN1580559A (en) * | 2003-08-04 | 2005-02-16 | 韩惠临 | Multifunctional high-efficiency oil pump |
| CN2775289Y (en) * | 2004-04-13 | 2006-04-26 | 孔宪春 | Spring lock jaw repeat seating and sealing packer |
| CN101205900A (en) * | 2006-12-22 | 2008-06-25 | 金昌昊 | High-inclination horizontal well oil pump |
| CN201474933U (en) * | 2009-08-20 | 2010-05-19 | 苏国卿 | Feedback oil well pump |
| CN103807151A (en) * | 2012-11-06 | 2014-05-21 | 中国石油化工股份有限公司 | Continuous lifting pump for pumping unit and lifting method thereof |
| CN203670171U (en) * | 2014-01-24 | 2014-06-25 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Annular-valve type anti-cavitation oil well pump |
| CN204371613U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of pumping-assistant pump for oil well pump |
Non-Patent Citations (1)
| Title |
|---|
| 颜凡全等: "防磨降耗抽油泵研制及应用", 《石油地质与工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253072A (en) * | 2018-10-31 | 2019-01-22 | 延安奇源石油工程技术服务有限公司 | A kind of double anti-oil well pumps |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170329 |