CN202832321U - Hollow rod pillar one-way valve - Google Patents
Hollow rod pillar one-way valve Download PDFInfo
- Publication number
- CN202832321U CN202832321U CN 201220498492 CN201220498492U CN202832321U CN 202832321 U CN202832321 U CN 202832321U CN 201220498492 CN201220498492 CN 201220498492 CN 201220498492 U CN201220498492 U CN 201220498492U CN 202832321 U CN202832321 U CN 202832321U
- Authority
- CN
- China
- Prior art keywords
- hollow
- joint
- valve seat
- spool
- hollow connector
- 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 a hollow rod pillar one-way valve which comprises an upper hollow joint, a griddling pipe, a hollow connector, a spring, a valve seat joint, a spool, a lower hollow joint and a valve seat. The griddling pipe is installed on the top of the hollow connector and covered by the upper hollow joint. The lower portion of the upper hollow joint is connected with the upper portion of the valve seat joint. The valve seat is installed on the upper portion of the valve seat joint. The spool is below the valve seat. A lower end opening is in sealing fit with the spool. The spool is supported by the spring. The lower portion of the valve seat joint is connected with the lower hollow joint. The lower end surface of the spring is located on the upper end surface of the lower hollow joint. The upper hollow joint, the valve seat joint and the lower hollow joint are in a hollow structure. The griddling pipe is provided with a blind hole, and a griddling hole is formed in the griddling pipe. The blind hole is communicated with the griddling hole. The hollow connector is provided with an inner through hole. A linking through hole is formed in the upper portion of the lower hollow joint. Under the function of the spool, a fluid can flow out from a hollow rod, crude oil can not inflow inside the hollow rod from the exterior of the hollow rod and smoothness of the hollow rod is ensured. Hot wash productions can be adopted by oil wells. Waxes can not be formed at the top of an oil pipe. Regular productions of the oil wells can be kept.
Description
Technical field
The utility model is the kit on the oil pumping in oil fields tubing string, particularly a kind of hollow roofbolt one way valve.
Background technology
In oil field pumping well was produced, some pumpingh well paraffin contents were high, easily separated out knot on the top of oil pick-up tube and were attached on tube inner wall or the sucker rod, caused oil flow channel to stop up, and sucker rod is descending to be obstructed, the regular wax removal of having to.The general employing of wax removal injected hot water in hollow rod at present, hot water flows out from linked hole downwards through hollow rod, annular space through hollow rod and oil pipe upwards flows out again, make hot water in cyclic process, carry out to the pipe lip-deep wax heating and melting of bar and by flow of hot water, thereby the wax that folds is removed, but in the time of hot washing not, oil in the oil pipe easily enters in the hollow stem from the linked hole of hollow stem bottom, enter after coagulation or wax deposition in the hollow stem, stop up hollow stem, cause again well-washing wax-cleaning.
Summary of the invention
The purpose of this utility model provides a kind of hollow roofbolt one way valve, and the oil in its oil pipe can not entered from the linked hole of hollow stem bottom in the hollow stem, guarantees that the well-flushing passage is unimpeded.
The purpose of this utility model is achieved in that and comprises hollow connector, screen casing, hollow connector, spring, valve base joint, spool, lower hollow connector, valve seat, screen casing is installed in the top of hollow connector, upper hollow splice housing is lived screen casing, upper hollow connector bottom is connected with valve base joint top, valve seat is installed in the valve base joint top, it is spool under the valve seat, valve seat lower port and spool fitted seal, spool is by spring supporting, the valve base joint bottom is connected with lower hollow connector, the spring lower surface is on the lower hollow connector upper surface, upper hollow connector, valve base joint, lower hollow connector is hollow structure, and screen casing has blind hole, sieve aperture is arranged on the screen casing, blind hole communicates with sieve aperture, and hollow connector has inner via hole, and linked hole is arranged at lower hollow connector top.
The beneficial effects of the utility model are: under the spool effect, fluid can flow out in hollow stem, and crude oil can not flow into outside hollow stem in the hollow stem, the assurance hollow stem is unimpeded, and oil well can take heat to wash production, and oil pipe top can wax deposition, oil flow channel is unimpeded, and oil well can be kept normal production.
Description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
As shown in the figure, embodiment of the present utility model comprises hollow connector 1, screen casing 3, hollow connector 6, spring 7, valve base joint 8, spool 10, lower hollow connector 11, valve seat 12, screen casing 3 is installed in the top of hollow connector 6, upper hollow connector 1 covers screen casing 3, upper hollow connector 1 bottom is connected with valve base joint 8 tops, valve seat 12 is installed in valve base joint 8 tops, it is spool 10 under the valve seat 12, valve seat 12 lower port and spool 10 fitted seal, spool 10 is supported by spring 7, and valve base joint 8 bottoms are connected with lower hollow connector 11, and spring 7 lower surfaces are on lower hollow connector 11 upper surfaces, upper hollow connector 1, valve base joint 8, lower hollow connector 11 is hollow structure, screen casing 3 has blind hole 4, and sieve aperture 2 is arranged on the screen casing 3, and blind hole 4 communicates with sieve aperture 2, hollow connector 6 has inner via hole 5, and linked hole 9 is arranged at lower hollow connector 11 tops.
During well-washing wax-cleaning, in hollow stem, inject hot water, hot water backs down spool 10 downwards through upper hollow connector 1, sieve aperture 2, blind hole 4, inner via hole 5, valve seat 12 and flows out from valve base joint 8, linked hole 9, lower hollow connector 11, annular space through hollow stem and oil pipe upwards flows out again, make hot water in cyclic process, carry out to the pipe lip-deep wax heating and melting of bar and by flow of hot water, thereby the wax that folds is removed.When well-flushing not, under the effect of spring 7, spool 4 falls seat on the lower port of valve seat 12, blocking channel, and crude oil can not flow in the hollow stem outside hollow stem.
Claims (1)
1. hollow roofbolt one way valve, comprise hollow connector (1), screen casing (3), hollow connector (6), spring (7), valve base joint (8), spool (10), lower hollow connector (11), valve seat (12), it is characterized in that: screen casing (3) is installed in the top of hollow connector (6), upper hollow connector (1) covers screen casing (3), upper hollow connector (1) bottom is connected with valve base joint (8) top, valve seat (12) is installed in valve base joint (8) top, spool (10) under the valve seat (12), valve seat (12) lower port and spool (10) fitted seal, spool (10) is supported by spring (7), valve base joint (8) bottom is connected with lower hollow connector (11), spring (7) lower surface is on lower hollow connector (11) upper surface, upper hollow connector (1), valve base joint (8), lower hollow connector (11) is hollow structure, screen casing (3) has blind hole (4), sieve aperture (2) is arranged on the screen casing (3), blind hole (4) communicates with sieve aperture (2), hollow connector (6) has inner via hole (5), and linked hole (9) is arranged at lower hollow connector (11) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498492 CN202832321U (en) | 2012-09-22 | 2012-09-22 | Hollow rod pillar one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498492 CN202832321U (en) | 2012-09-22 | 2012-09-22 | Hollow rod pillar one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832321U true CN202832321U (en) | 2013-03-27 |
Family
ID=47944053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220498492 Expired - Fee Related CN202832321U (en) | 2012-09-22 | 2012-09-22 | Hollow rod pillar one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832321U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401916A (en) * | 2015-11-25 | 2016-03-16 | 中国石油天然气股份有限公司 | Hollow sucker rod thermal-washing valve suitable for directional well |
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
-
2012
- 2012-09-22 CN CN 201220498492 patent/CN202832321U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401916A (en) * | 2015-11-25 | 2016-03-16 | 中国石油天然气股份有限公司 | Hollow sucker rod thermal-washing valve suitable for directional well |
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN110541686B (en) * | 2018-05-28 | 2021-11-30 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
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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: 20130327 Termination date: 20130922 |