CN202417895U - Spinning centering sand-prevention oil-well pump - Google Patents
Spinning centering sand-prevention oil-well pump Download PDFInfo
- Publication number
- CN202417895U CN202417895U CN2011205271694U CN201120527169U CN202417895U CN 202417895 U CN202417895 U CN 202417895U CN 2011205271694 U CN2011205271694 U CN 2011205271694U CN 201120527169 U CN201120527169 U CN 201120527169U CN 202417895 U CN202417895 U CN 202417895U
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- Prior art keywords
- plunger
- pump
- centering
- strike
- sand
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Abstract
The utility model relates to an oil-well pump, in particular to a spinning centering sand-prevention oil-well pump. The technical scheme includes that the spinning centering sand-prevention oil-well pump mainly comprises a pumping rod, a rotary coupling, a screw valve cap, a centering device, a plunger, a strike-off device, a standing valve, a pump barrel, and valve balls. The pumping rod is arranged inside the pump barrel, the pumping rod is connected the screw valve cap through the rotary coupling, the screw valve cap is connected with the centering device, the centering device is connected with the plunger, the strike-off device is arranged on the lower portion of the plunger, the standing valve is arranged at an opening of the bottom of the pump barrel, and valve balls are arranged both between the strike-off device and the plunger and between the plunger and the centering device. The spinning centering sand-prevention oil-well pump has the advantages that a large amount of sand is prevented from being adhered to the barrel wall, abrasion of the plunger is reduced, by the aid of uplink speed of liquid, turning moment is produced by the screw valve cap, centering function is made to the pumping rod, a certain amount of liquid can also be stored inside the screw valve cap and the centering device, equivalently volume of the plunger is increased, and oil-pumping efficiency is improved.
Description
Technical field
The utility model relates to a kind of oil well pump, and particularly a kind of self-rotary is set upright sand-proof oil-well pump.
Background technique
Extensively adopt rod pumping pump in China at present; Because the difference in area and oil well is different; Requirement to oil well pump is also inequality, and the more oil well that much shakes out is relatively more severe and to pump efficient very low to the damage of pump, and the production of oil has been caused a lot of unnecessary troubles and waste.
Summary of the invention
The purpose of the utility model is exactly the above-mentioned defective that exists to existing technology, provides a kind of self-rotary to set upright sand-proof oil-well pump, and applicability is strong, and high working efficiency is applied widely.
Its technological scheme is: mainly be made up of sucker rod, rotation box cupling, spiral valve bonnet, centralizer, plunger, the device of strike-ofing, standing valve, pump barrel, valve ball; Pump barrel set inside sucker rod, described sucker rod connects the spiral valve bonnet through the rotation box cupling, and the spiral valve bonnet connects centralizer; Described centralizer is connected with plunger; The plunger bottom is provided with the device of strike-ofing, and the pump barrel bottom opening is provided with standing valve, and strike-ofing is equipped with valve ball between device and the plunger and between plunger and the centralizer.
Above-mentioned screw valve is covered with spiral chute, is provided with valve ball in the spiral chute.
The diameter dimension of device and centralizer of strike-ofing equates with the internal diameter of pump barrel.
The beneficial effect of the utility model is: use this novel oil well pump, can prevent that a large amount of sand is bonded on the barrel, has reduced the wearing and tearing of plunger; Utilize the up speed of liquid to make the spiral valve bonnet produce running torque, sucker rod is had centralizing function; Spiral valve bonnet and centralizer inside also can store certain liquid, have been equivalent to increase the volume of plunger, have improved the efficient of oil pumping; This pump is similar with the pump size of generally using, and applicability is strong, and high working efficiency is applied widely, is particularly useful for containing the many oil wells of sand.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Among the last figure: sucker rod 1, rotation box cupling 2, spiral valve bonnet 3, centralizer 4, plunger 5, the device 6 of strike-ofing, standing valve 7, pump barrel 8, spiral chute 9, valve ball 10.
Embodiment
In conjunction with accompanying drawing 1, the utility model is done further to describe:
The utility model mainly is made up of sucker rod 1, rotation box cupling 2, spiral valve bonnet 3, centralizer 4, plunger 5, the device 6 of strike-ofing, standing valve 7, pump barrel 8, valve ball 10; Pump barrel 8 set inside sucker rods 1; Described sucker rod 1 connects spiral valve bonnet 3 through rotation box cupling 2; Spiral valve bonnet 3 connects centralizer 4, and described centralizer 4 is connected with plunger 5, and plunger 5 bottoms are provided with the device 6 of strike-ofing; Pump barrel 8 bottom openings are provided with standing valve 7, strike-off to be equipped with valve ball 10 between device 6 and the plunger 5 and between plunger 5 and the centralizer 4; Described spiral valve bonnet 3 is provided with spiral chute 9, is provided with valve ball 10 in the spiral chute 9; The diameter dimension of device 6 and centralizer 4 of strike-ofing equates with the internal diameter of pump barrel 8.
The upper end of rotation box cupling is connected with sucker rod, and the bottom of pump is immersed in the oil reservoir.During the plunger down stroke, standing valve cuts out, and forces the crude oil in the pump letter upwards to flow through traveling valve and plunger, and flows out from plunger piston assembly through the spiral valve bonnet of plunger upper part.Because the oil groove that goes out of valve bonnet is a spiral slot, when crude oil flowed out, its speed that upwards flows was in the top edge decomposition level component velocity of these grooves, thereby the spiral valve bonnet is produced torque.Spiral valve bonnet and centralizer be for being rigidly connected, and when plunger moves downward, during the outside oil extraction of spiral chute, centralizer rotates relative to pump barrel with the spiral valve bonnet, and sense of rotation is relevant with the spiral fluted rotation direction.Because spiral chute has bigger axial length, so, larger area crude oil passage is provided, very little to the crude oil obstruction, so do not influence pump efficiency.Plunger when upstroke, because of no crude stream through valve bonnet, do not produce torque, so plunger does not rotate, so in whole oil pumping process, plunger is only made intermittently one-way rotation during down stroke yet.Because the diameter dimension of centralizer is identical with pump barrel, each stroke all can rotate once, avoids plunger to be partial to a direction because of long-term operation, causes serious wear between certain direction plunger and the pump barrel, thereby has prolonged the working life of pump.With rotation of spiral valve bonnet, the rotation box cupling has been installed between spiral valve bonnet and sucker rod for fear of sucker rod.
The bottom of plunger is equipped with the device of strike-ofing, and its end size is identical with the pump barrel radial dimension.During down stroke; Plunger is exercised down in the pump chamber fluid pressure to strike-ofing the certain radial force of device opening effect, is that the chamfering of strike-ofing is close to the pump barrel inwall and is slided, and can effectively stop sand grains to get into the gap between plunger and the pump barrel; Thereby eliminated between plunger that common oil well pump exists and the pump barrel because the rigid extrusion friction power that the compaction of sand grains forms; And along with the plunger downward movement, near the sand grains that the well fluid power of discharge enough will accumulate in the spiral valve bonnet mouth washes away totally, during for upstroke next time; Guarantee that plunger is operated in the best cleaning ambient, play the effect that automatic flushing sand grains prevents sand card plunger.
Claims (3)
1. a self-rotary is set upright sand-proof oil-well pump; It is characterized in that: mainly form by sucker rod (1), rotation box cupling (2), spiral valve bonnet (3), centralizer (4), plunger (5), the device of strike-ofing (6), standing valve (7), pump barrel (8), valve ball (10); Pump barrel (8) set inside sucker rod (1); Described sucker rod (1) connects spiral valve bonnet (3) through rotation box cupling (2); Spiral valve bonnet (3) connects centralizer (4), and described centralizer (4) is connected with plunger (5), and plunger (5) bottom is provided with the device of strike-ofing (6); Pump barrel (8) bottom opening is provided with standing valve (7), is equipped with valve ball (10) between device of strike-ofing (6) and the plunger (5) and between plunger (5) and the centralizer (4).
2. self-rotary according to claim 1 is set upright sand-proof oil-well pump, it is characterized in that: described spiral valve bonnet (3) is provided with spiral chute (9), is provided with valve ball (10) in the spiral chute (9).
3. self-rotary according to claim 1 is set upright sand-proof oil-well pump, it is characterized in that: the diameter dimension of device of strike-ofing (6) and centralizer (4) equates with the internal diameter of pump barrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205271694U CN202417895U (en) | 2011-12-16 | 2011-12-16 | Spinning centering sand-prevention oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205271694U CN202417895U (en) | 2011-12-16 | 2011-12-16 | Spinning centering sand-prevention oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417895U true CN202417895U (en) | 2012-09-05 |
Family
ID=46742666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205271694U Expired - Fee Related CN202417895U (en) | 2011-12-16 | 2011-12-16 | Spinning centering sand-prevention oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573614A (en) * | 2013-10-29 | 2014-02-12 | 陕西延长石油(集团)有限责任公司研究院 | Self-spiral metal ceramic valve assembly |
| EP3837425A4 (en) * | 2018-08-14 | 2021-07-07 | Stinger Oil Tools, LLC | Rotary traveling valve |
-
2011
- 2011-12-16 CN CN2011205271694U patent/CN202417895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573614A (en) * | 2013-10-29 | 2014-02-12 | 陕西延长石油(集团)有限责任公司研究院 | Self-spiral metal ceramic valve assembly |
| EP3837425A4 (en) * | 2018-08-14 | 2021-07-07 | Stinger Oil Tools, LLC | Rotary traveling valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121216 |