CN102373899A - Opening/closing valve for natural gas well mouth pipeline - Google Patents
Opening/closing valve for natural gas well mouth pipeline Download PDFInfo
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- CN102373899A CN102373899A CN2011102859904A CN201110285990A CN102373899A CN 102373899 A CN102373899 A CN 102373899A CN 2011102859904 A CN2011102859904 A CN 2011102859904A CN 201110285990 A CN201110285990 A CN 201110285990A CN 102373899 A CN102373899 A CN 102373899A
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- Prior art keywords
- valve
- spool
- pipeline
- valve body
- opening
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- 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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- 239000002343 natural gas well Substances 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims description 27
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract 3
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses an opening/closing valve for a natural gas well mouth pipeline. The opening/closing valve comprises a valve body and a valve cover, wherein one side wall of the valve body is provided with a gas inlet which is communicated with an upstream gas conveying pipeline; the other side wall of the valve body is provided with a gas outlet which is communicated with a downstream gas conveying pipeline; a valve core which is used for partitioning the inside of the valve body into an upper chamber and a lower chamber is arranged in the valve body; a pull rod which can project out of the valve cover and can be used for driving the valve core to move vertically is arranged on the valve core; one side wall of the valve body is provided with a channel I, and the other side wall of the valve body is provided with a channel II; the upstream gas conveying pipeline is connected with a pipeline I; the downstream gas conveying pipeline is connected with a pipeline II; a gas storing container is arranged on the pipeline I; a control valve I is arranged between the gas storing container and the valve body on the pipeline I; a one-way valve is arranged between the gas storing container and the upstream gas conveying pipeline on the pipeline I; and a control valve II is arranged on the pipeline II. The opening/closing valve for the natural gas well mouth pipeline has a simple structure, high efficiency and low production cost, and is convenient to use, popularize and apply.
Description
Technical field
The present invention relates to a kind of keying valve, particularly relate to a kind of natural gas well head pipeline with opening and closing valve.
Background technology
At present; At the natural gas well aborning, adopt the downhole choke production technology, press design during the ground gas transmission line adopts; In order to prevent that underground throttle device inefficacy back high pressure gas from damaging ground gas transmission line and relevant device; Prevent simultaneously to cause a large amount of leakages of natural gas, for this reason, the safe headstock gear with high-low pressure defencive function must be installed at the natural gas well head because of downstream line breaks.How a kind of safe, efficient headstock gear is provided is the problem that those skilled in the technology concerned are devoted to solve.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency of the prior art, provide a kind of natural gas well head pipeline with opening and closing valve.Valve arrangement is simple, easy to use, validity is strong, cost of production is low with opening and closing for this natural gas well head pipeline, is convenient to promote the use of.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: natural gas well head pipeline is with opening and closing valve; It is characterized in that: comprise valve body and the valve gap that is installed in the valve body top, a sidewall of said valve body is provided with the air inlet port that is connected with upper reaches gas transmission line, and another sidewall of said valve body is provided with the gas outlet that is connected with the downstream gas transmission line; Be provided with the spool that valve inner is divided into upper chamber and lower chambers in the said valve body; Be equipped with on the said spool from valve gap and pass and can drive the pull bar that spool moves up and down, a sidewall of said valve body is provided with the passage one that is connected with upper chamber, and another sidewall of said valve body is provided with the passage two that is connected with upper chamber; Be connected with the pipeline one that is connected with passage one on the gas transmission line of the said upper reaches; Be connected with the pipeline two that is connected with passage two on the gas transmission line of said downstream, on the said pipeline one air container be installed, between air container and valve body, be provided with control valve one on the said pipeline one; Between air container and upper reaches gas transmission line, be provided with one way valve on the said pipeline one, on the said pipeline two control valve two be installed.
Above-mentioned natural gas well head pipeline is with opening and closing valve; It is characterized in that: also be provided with the air inlet chamber that is connected with the gas outlet in the said valve body; Said air inlet chamber is between upper chamber and lower chambers; The profile of said spool lower end is the conical surface that is sealed and matched with valve interior wall, and it is indoor that the top of the said conical surface is positioned at inlet chamber.
Above-mentioned natural gas well head pipeline is with opening and closing valve, and it is characterized in that: said spool is a hollow structure, and said pull bar is connected on the spool through the spool gland that is installed in the spool upper end.
Above-mentioned natural gas well head pipeline is with opening and closing valve, and it is characterized in that: be provided with compression spring between said valve gap and the spool gland, the upper end of said compression spring is connected with valve gap, and the lower end of said compression spring is connected with the spool gland.
Above-mentioned natural gas well head pipeline is with opening and closing valve, and it is characterized in that: the end face of said spool gland is provided with the stop collar that is used to limit the spool lifting height.
Above-mentioned natural gas well head pipeline is with opening and closing valve, and it is characterized in that: said passage one is positioned at the top of air inlet port, and said passage two is positioned at the top of gas outlet.
Above-mentioned natural gas well head pipeline is characterized in that with opening and closing valve: said control valve one is the self-closing electromagnetic valve with control valve two.
The present invention compared with prior art has the following advantages:
1, of the present invention simple in structure, novel and reasonable design.
2, the present invention has utilized the self-energy through medium in the valve body when opening; Has different contacts area by upper chamber with lower chambers and medium; Form the power of poppet; Spool is opened to maximum position, does not need electric power or other power to keep its opening, very easy to use.
3, the present invention has utilized self high pressure gas in the gas transmission line of the upper reaches when closing; It is stored earlier; Through between upper chamber and lower chambers, forming bigger pressure differential; Become the power that the promotion spool moves down, do not need electric power or other power to keep its closed condition, very easy to use.
4, the conical surface of the profile of spool according to the invention lower end for being sealed and matched with valve interior wall; It is indoor that the top of the said conical surface is positioned at inlet chamber, and the top of the conical surface has an annular projection on the lower wall of air inlet chamber, when this opens and closes opening of valves; Gas has a lifting force that makes progress through this conical surface top to spool; This lifting force can be assisted the unlatching of spool, during use, obtains good effect.
5, the end face of spool gland according to the invention is provided with the stop collar that is used to limit the spool lifting height.Through stop collar is set, can limit the height that spool rises.
6, the present invention is through being provided with compression spring between valve gap and spool gland; Make progress in the time of can opening spool and play cushioning effect in the lifting process; And when spool was closed, the elastic force through compression spring can quicken closing of spool, and was very easy to use.
7, control valve one according to the invention and control valve two are the self-closing electromagnetic valve; Through adopting the self-closing electromagnetic valve; Need not the state that extraneous any power is kept this keying valve behind control valve one and control valve two switch valves; Alleviated the problem of natural gas well head power source, had great practical value.
8, realization cost of the present invention is low, and result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, novel and reasonable design, and functional reliability is high, and long service life does not need electric power or other power to keep its closed condition or opening, and very easy to use, result of use is good, is convenient to promote the use of.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the enlarged drawing at A place among Fig. 1.
Description of reference numerals:
The 1-valve body; The 2-lower chambers; The 3-gas outlet;
4-downstream gas transmission line; 5-pipeline two; 6-control valve two;
7-passage two; 8-upper chamber; The 9-pull bar;
The 10-valve gap; 11-passage one; 12-control valve one;
The 13-air container; The 14-one way valve; 15-pipeline one;
The 16-compression spring; The 17-stop collar; 18-spool gland;
The 19-spool; 20-upper reaches gas transmission line; The 21-air inlet port;
22-air inlet chamber; The 23-conical surface.
The specific embodiment
A kind of natural gas well head pipeline as shown in Figure 1 is with opening and closing valve; Comprise valve body 1 and the valve gap 10 that is installed in valve body 1 top; One sidewall of said valve body 1 is provided with the air inlet port 21 that is connected with upper reaches gas transmission line 20; Another sidewall of said valve body 1 is provided with the gas outlet 3 that is connected with downstream gas transmission line 4, is provided with the spool 19 that valve body 1 inside is divided into upper chamber 8 and lower chambers 2 in the said valve body 1, is equipped with from valve gap 10 on the said spool 19 and passes and can drive the pull bar 9 that spool 19 moves up and down; One sidewall of said valve body 1 is provided with the passage 1 that is connected with upper chamber 8; Another sidewall of said valve body 1 is provided with the passage 27 that is connected with upper chamber 8, is connected with the pipeline 1 that is connected with passage 1 on the said upper reaches gas transmission line 20, is connected with the pipeline 25 that is connected with passage 27 on the said downstream gas transmission line 4; On the said pipeline 1 air container 13 is installed; Between air container 13 and valve body 1, be provided with control valve 1 on the said pipeline 1, between air container 13 and upper reaches gas transmission line 20, be provided with one way valve 14 on the said pipeline 1, on the said pipeline 25 control valve 26 is installed.
During use; Behind natural gas well mouth closed electromagnetic valve; The pressure of upper reaches gas transmission line 20 rises steadily; When the pressure of upper reaches gas transmission line 20 surpasses the pressure of air container 13, begin to inflate up to reaching pressure balance to air container 13 through one way valve 14, at this moment air container 13 has stored the power of certain energy.
This natural gas well head pipeline with the open theory that opens and closes valve is: said control valve 1 is in closed condition; Control valve 26 is in open mode; So; Pressure in the pressure of said upper chamber 8 and the downstream gas transmission line 4 tend to balance, because pull bar 9 is positioned at upper chamber 8 and stretches out outside the valve gap 10, though the pressure of upper chamber 8 and lower chambers 2 is in balance; But active area of downforce is different on it; The sectional area that the pressure active area of spool 19 upper ends equals spool 19 deducts the sectional area of pull bar 9, and the pressure active area of spool 19 lower ends is substantially equal to the sectional area of spool 19, and at this moment the active force that makes progress of spool 19 is then produced by the pressure that acts on pull bar 9 sectional areas.Spool 19 moves up up to maximum position.The unlatching of this keying valve is the self-energy that has utilized through medium in the valve body 1, has different contacts area by upper chamber 8 with lower chambers 2 and medium, forms the power of poppet 19, and spool 19 is opened to maximum position.
This natural gas well head pipeline with the principle of closing that opens and closes valve is: said control valve 1 is in open mode; Control valve 26 is in closed condition; So the gases at high pressure in the air container 13 get into upper chamber 8 through the control valve of opening 1, at this moment in upper chamber 8, have the pressure that is bordering on balance with air container 13; Under the differential pressure action that forms between upper chamber 8 and the lower chambers 2; Spool 19 is pushed up to sealing station, and at this moment the air inlet chamber 22 in the valve body 1 is blocked with lower chambers 2, and this keying valve is in closed condition.Along with the pressure of the prolongation upper reaches gas transmission line 20 of this keying valve closing time will rise steadily; When the pressure of upper reaches gas transmission line 20 surpasses the pressure of air container 13; Upper reaches gas transmission line 20 begins in air container 13 inflation again, closes the pressure store ability for what open and close valve next time.Closing of this keying valve is self high pressure gas of having utilized in the upper reaches gas transmission line 20, and it is stored earlier, promotes the power that spool 19 moves down through forming bigger pressure differential between upper chamber 8 and the lower chambers 2, becoming.
As depicted in figs. 1 and 2; Also be provided with the air inlet chamber 22 that is connected with gas outlet 3 in the said valve body 1; Said air inlet chamber 22 is between upper chamber 8 and lower chambers 2; The profile of said spool 19 lower ends is the conical surface 23 that cooperates with valve body 1 inner wall sealing, and the top of the said conical surface 23 is positioned at inlet chamber chamber 22.Because the top of the conical surface 23 is positioned at inlet chamber chamber 22; The top of the conical surface 23 has an annular projection on the lower wall of air inlet chamber 22; When this opened and closed opening of valves, gas had a lifting force that makes progress through these conical surface 23 tops to spool 19, and this lifting force can be assisted the unlatching of spool 19; During use, obtain good effect.
As shown in Figure 1, said spool 19 is a hollow structure, and said pull bar 9 is connected on the spool 19 through the spool gland 18 that is installed in spool 19 upper ends.Be provided with compression spring 16 between said valve gap 10 and the spool gland 18, the upper end of said compression spring 16 is connected with the bottom surface of valve gap 10, and the lower end of said compression spring 16 is connected with the end face of spool gland 18.Through compression spring 16 is set, play cushioning effect in the lifting process that makes progress in the time of can opening spool 19, and when spool 19 is closed, the elastic force through compression spring 16 can quicken closing of spool 19, and is very easy to use.
As shown in Figure 1, the end face of said spool gland 18 is provided with the stop collar 17 that is used to limit spool 19 lifting heights.Through stop collar 17 is set, can limit the height that spool 19 rises.
As shown in Figure 1, said passage 1 is positioned at the top of air inlet port 21, and said passage 27 is positioned at the top of gas outlet 3.Said control valve 1 is the self-closing electromagnetic valve with control valve 26; Through adopting the self-closing electromagnetic valve; Need not the state that extraneous any power is kept this keying valve behind control valve 1 and control valve 26 switch valves; Alleviated the problem of natural gas well head power source, had great practical value.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit all still belongs in the protection domain of technical scheme of the present invention any simple modification, change and equivalent structure transformation that above embodiment did according to the present invention.
Claims (7)
1. natural gas well head pipeline is with opening and closing valve; It is characterized in that: comprise valve body (1) and be installed in the valve gap (10) at valve body (1) top; One sidewall of said valve body (1) is provided with the air inlet port (21) that is connected with upper reaches gas transmission line (20); Another sidewall of said valve body (1) is provided with the gas outlet (3) that is connected with downstream gas transmission line (4); Be provided with the spool (19) that valve body (1) inside is divided into upper chamber (8) and lower chambers (2) in the said valve body (1); Be equipped with on the said spool (19) from valve gap (10) and pass and can drive the pull bar (9) that spool (19) moves up and down, a sidewall of said valve body (1) is provided with the passage one (11) that is connected with upper chamber (8), and another sidewall of said valve body (1) is provided with the passage two (7) that is connected with upper chamber (8); Be connected with the pipeline one (15) that is connected with passage one (11) on the said upper reaches gas transmission lines (20); Be connected with the pipeline two (5) that is connected with passage two (7) on the said downstream gas transmission lines (4), on the said pipeline one (15) air container (13) be installed, be positioned on the said pipeline one (15) between air container (13) and the valve body (1) and be provided with control valve one (12); Be positioned on the said pipeline one (15) between air container (13) and the upper reaches gas transmission line (20) and be provided with one way valve (14), on the said pipeline two (5) control valve two (6) is installed.
2. natural gas well head pipeline according to claim 1 is with opening and closing valve; It is characterized in that: also be provided with the air inlet chamber (22) that is connected with gas outlet (3) in the said valve body (1); Said air inlet chamber (22) is positioned between upper chamber (8) and the lower chambers (2); The profile of said spool (19) lower end is the conical surface (23) that cooperates with valve body (1) inner wall sealing, and the top of the said conical surface (23) is positioned at inlet chamber chamber (22).
3. natural gas well head pipeline according to claim 1 and 2 is with opening and closing valve, and it is characterized in that: said spool (19) is a hollow structure, and said pull bar (9) is connected on the spool (19) through the spool gland (18) that is installed in spool (19) upper end.
4. natural gas well head pipeline according to claim 3 is with opening and closing valve; It is characterized in that: be provided with compression spring (16) between said valve gap (10) and the spool gland (18); The upper end of said compression spring (16) is connected with valve gap (10), and the lower end of said compression spring (16) is connected with spool gland (18).
5. natural gas well head pipeline according to claim 3 is with opening and closing valve, and it is characterized in that: the end face of said spool gland (18) is provided with the stop collar (17) that is used to limit spool (19) lifting height.
6. natural gas well head pipeline according to claim 1 and 2 is with opening and closing valve, and it is characterized in that: said passage one (11) is positioned at the top of air inlet port (21), and said passage two (7) is positioned at the top of gas outlet (3).
7. natural gas well head pipeline according to claim 1 and 2 is with opening and closing valve, and it is characterized in that: said control valve one (12) and control valve two (6) are the self-closing electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285990.4A CN102373899B (en) | 2011-09-24 | 2011-09-24 | Opening/closing valve for natural gas well mouth pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285990.4A CN102373899B (en) | 2011-09-24 | 2011-09-24 | Opening/closing valve for natural gas well mouth pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102373899A true CN102373899A (en) | 2012-03-14 |
| CN102373899B CN102373899B (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110285990.4A Expired - Fee Related CN102373899B (en) | 2011-09-24 | 2011-09-24 | Opening/closing valve for natural gas well mouth pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102373899B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724996A (en) * | 2017-09-22 | 2018-02-23 | 中国海洋石油总公司 | Natural gas wellhead block valve |
| CN110552681A (en) * | 2019-08-31 | 2019-12-10 | 中国石油集团川庆钻探工程有限公司 | separator liquid level adjusting system for oil testing |
| CN112145125A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well four-in-one remote intelligent production and safety control equipment |
| CN115489657A (en) * | 2022-10-26 | 2022-12-20 | 浙江大学 | Gas release device for gas lubrication and resistance reduction of wading navigation body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN85105038A (en) * | 1985-06-29 | 1986-12-24 | 罗固事 | Protective valve for cut-off nlatural gas |
| CN2793309Y (en) * | 2004-11-12 | 2006-07-05 | 中国石油天然气股份有限公司 | Natural gas well wellhead reset safety protection device |
| RU2367775C1 (en) * | 2008-06-18 | 2009-09-20 | Закрытое Акционерное Общество Финансовая Компания "Центр-Космос-Нефть-Газ" | Wellhead check valve for oil, oil-and-gas wells |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| JP2010164130A (en) * | 2009-01-15 | 2010-07-29 | Asahi Organic Chem Ind Co Ltd | Back pressure control valve |
| CN202215201U (en) * | 2011-09-24 | 2012-05-09 | 西安奥益达石油技术开发有限公司 | Opening and closing valve for natural gas wellhead pipeline |
-
2011
- 2011-09-24 CN CN201110285990.4A patent/CN102373899B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105038A (en) * | 1985-06-29 | 1986-12-24 | 罗固事 | Protective valve for cut-off nlatural gas |
| CN2793309Y (en) * | 2004-11-12 | 2006-07-05 | 中国石油天然气股份有限公司 | Natural gas well wellhead reset safety protection device |
| RU2367775C1 (en) * | 2008-06-18 | 2009-09-20 | Закрытое Акционерное Общество Финансовая Компания "Центр-Космос-Нефть-Газ" | Wellhead check valve for oil, oil-and-gas wells |
| JP2010164130A (en) * | 2009-01-15 | 2010-07-29 | Asahi Organic Chem Ind Co Ltd | Back pressure control valve |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| CN202215201U (en) * | 2011-09-24 | 2012-05-09 | 西安奥益达石油技术开发有限公司 | Opening and closing valve for natural gas wellhead pipeline |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724996A (en) * | 2017-09-22 | 2018-02-23 | 中国海洋石油总公司 | Natural gas wellhead block valve |
| CN110552681A (en) * | 2019-08-31 | 2019-12-10 | 中国石油集团川庆钻探工程有限公司 | separator liquid level adjusting system for oil testing |
| CN110552681B (en) * | 2019-08-31 | 2022-10-14 | 中国石油集团川庆钻探工程有限公司 | Separator liquid level adjusting system for oil testing |
| CN112145125A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well four-in-one remote intelligent production and safety control equipment |
| CN115489657A (en) * | 2022-10-26 | 2022-12-20 | 浙江大学 | Gas release device for gas lubrication and resistance reduction of wading navigation body |
| CN115489657B (en) * | 2022-10-26 | 2024-12-24 | 浙江大学 | A gas release device for gas lubrication and drag reduction of wading navigation body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102373899B (en) | 2014-01-29 |
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Granted publication date: 20140129 |