CN109386738B - Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline - Google Patents
Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline Download PDFInfo
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- CN109386738B CN109386738B CN201811551126.2A CN201811551126A CN109386738B CN 109386738 B CN109386738 B CN 109386738B CN 201811551126 A CN201811551126 A CN 201811551126A CN 109386738 B CN109386738 B CN 109386738B
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- line cut
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000004880 explosion Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 230000009172 bursting Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 230000006872 improvement Effects 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and interlocking protection device, which comprises: a trunk pipeline provided with a tee A, a line cut-off valve and a tee B; the two ends of the bypass pipeline are respectively connected with the tee joint A and the tee joint B, and the bypass pipeline is provided with a pressure leading pipeline A and a pressure leading pipeline B; one end of the pressure leading pipeline A is connected with the upstream of the bypass pipeline, and the other end of the pressure leading pipeline A is connected with the line cut-off valve; one end of the pressure leading pipeline B is connected with the downstream of the bypass pipeline, and the other end of the pressure leading pipeline B is connected with the line cut-off valve; the pressure leading pipeline A and the pressure leading pipeline B are respectively provided with a plurality of pressure detection devices, the pressure detection devices and the line cut-off valve are connected with the controller through the junction box, and the controller calculates the field detection value to judge whether to take protective measures. The beneficial effects of the invention are as follows: the system can timely and accurately monitor the occurrence of pipe explosion of the trunk pipeline and alarm, and take protective measures to isolate accident pipelines from a station yard, thereby improving the safety of gas pipelines, surrounding personnel and property.
Description
Technical Field
The invention relates to the technical field of pipeline systems, in particular to a gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and linkage protection device.
Background
In the pipeline operation process, the natural gas pipeline is broken or broken to cause natural gas leakage due to the reasons of pipeline corrosion, third party damage, construction quality and the like, and finally the natural gas pipeline is inoculated into an oil gas pipeline safety accident, so that great adverse effects are caused to society and enterprises, and serious threat is brought to the life and property safety of people around the pipeline. If the related information such as whether the pipeline is broken or cracked is not mastered in time, the accident result is continuously aggravated, and serious environmental pollution and serious personal and property loss are caused.
For leakage of a gas transmission pipeline caused by pipeline corrosion, third party damage, construction quality and the like, because natural gas is compressible fluid, the conventional engineering cannot use a method of oil transmission pipeline to perform leakage monitoring, and cannot realize emergency cutting off of a conveying system under abnormal conditions and emergency shutdown functions of station in-out, so that related problems can be found only when major accidents such as natural gas leakage, fire or explosion and the like which can be observed by human eyes occur.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a device which enables the main pipeline explosion monitoring alarm speed of the gas pipeline valve chamber to be more timely and has higher accuracy, and improves the safety of gas pipelines, surrounding personnel and property.
The invention provides a gas transmission pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and interlocking protection device, which comprises: the main pipeline is sequentially provided with a tee joint A, a line cut-off valve and a tee joint B, and the line cut-off valve is connected with the junction box through a cable;
the two ends of the bypass pipeline are respectively connected with the tee A and the tee B, and the bypass pipeline is provided with a valve and is connected with a high-pressure emptying pipeline;
the pressure-guiding pipeline A is connected with the upstream of the bypass pipeline at one end and connected with the line cut-off valve at the other end, a plurality of pressure detection devices are arranged on the pressure-guiding pipeline A, the pressure detection devices are respectively connected with the pressure-guiding pipeline A through instrument valves, and the pressure detection devices are respectively connected with the junction box through cables;
one end of the pressure guiding pipeline B is connected with the line cut-off valve, and the other end of the pressure guiding pipeline B is connected with the downstream of the bypass pipeline; the pressure guiding pipeline B is provided with a plurality of pressure detection devices, the pressure detection devices are respectively connected with the pressure guiding pipeline B through instrument valves, and the pressure detection devices are respectively connected with the junction box through cables;
and the input end of the controller is electrically connected with the junction box, and the output end of the controller is connected with the actuating mechanism of the line cut-off valve.
As a further improvement of the invention, a plurality of instrument valves are respectively connected with the pressure leading pipeline A and the pressure leading pipeline B through instrument root valves.
As a further development of the invention, the high-pressure vent line is connected to the bypass line via a flanged valve.
As a further improvement of the invention, the line cut-off valve is a gas-liquid linkage valve.
As a further improvement of the invention, the plurality of pressure detection devices are high-precision pressure transmitters.
As a further development of the invention, a valve B and a valve C are arranged upstream and downstream of the bypass line, respectively.
As a further improvement of the invention, the pressure leading pipeline A is connected with the bypass pipeline through a valve E, and the pressure leading pipeline A is connected with the line cut-off valve through a valve F; the pressure leading pipeline B is connected with the bypass pipeline through a valve G, and the pressure leading pipeline B is connected with the line cut-off valve through a valve H.
As a further improvement of the invention, a vent pipe is arranged on the bypass pipeline between the valve B and the valve A, and the vent pipe is connected with the bypass pipeline through a valve J.
As a further improvement of the invention, the pressure leading pipeline A and the pressure leading pipeline B are respectively provided with two pressure detection devices.
As a further development of the invention, the valve B and the valve C are ball valves.
The beneficial effects of the invention are as follows: by arranging the bypass pipeline on the trunk pipeline of the gas pipeline valve chamber and installing the pressure detection device on the bypass pipeline to monitor the pipeline pressure drop rate value, when the pressure drop rate continuously exceeds a set value for a certain number of times, the controller controls the alarm device to send an alarm parallel lock to close the line cut-off valve at the upstream and downstream of the pipe explosion position, so that the accident pipeline and the station yard are isolated, the purposes of timely and accurately monitoring the occurrence of the pipe explosion of the trunk pipeline of the gas pipeline valve chamber and alarming are achieved, and protective measures are taken to isolate the accident pipeline and the station yard, thereby improving the safety of the gas pipeline, surrounding personnel and property.
Drawings
FIG. 1 is a schematic diagram of a gas pipeline valve chamber trunk pipeline pipe bursting monitoring alarm and linkage protection device according to an embodiment of the invention;
in the drawing the view of the figure,
1. a mains conduit; 2. a tee joint A; 3. a line cut-off valve; 4, tee joint B; 5. a bypass line; 6. a pressure leading pipeline A; 7. a pressure leading pipeline B; 8. a plurality of pressure detection devices; 9. an instrument valve; 10. a meter root valve; 11. a junction box; 12. a valve A; 13. a flanged valve; 14. a valve B; 15. a valve C; 16. a valve E; 17. a valve G; 18. a valve F; 19. a valve H; 20. and a valve J.
Detailed Description
The invention will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
As shown in fig. 1, the device for monitoring and alarming the pipe bursting of the trunk pipeline of the valve chamber of the gas pipeline according to the embodiment of the invention comprises: a main pipeline 1, on which a tee joint A2, a line cut-off valve 3 and a tee joint B4 are sequentially arranged, wherein the line cut-off valve 3 is connected with a junction box 11 through a cable;
the two ends of the bypass pipeline 5 are respectively connected with the tee joint A2 and the tee joint B4, and the bypass pipeline 5 is provided with a valve and is connected with a high-pressure emptying pipeline;
a pressure guiding pipeline A6, one end of which is connected with the upstream of the bypass pipeline 5, the other end of which is connected with the line cut-off valve 3, a plurality of pressure detecting devices 8 are arranged on the pressure guiding pipeline A6, the pressure detecting devices 8 are respectively connected with the pressure guiding pipeline A6 through instrument valves 9, and the pressure detecting devices 8 are respectively connected with a junction box 11 through cables;
a pressure-guiding pipeline B7, one end of which is connected with the line cut-off valve 3, and the other end of which is connected with the downstream of the bypass pipeline 5; the pressure leading pipeline B7 is provided with a plurality of pressure detection devices 8, the pressure detection devices 8 are respectively connected with the pressure leading pipeline B7 through instrument valves 9, and the pressure detection devices 8 are respectively connected with the junction box 11 through cables;
and the input end of the controller is electrically connected with the junction box 11, and the output end of the controller is connected with the actuating mechanism of the line cut-off valve.
Further, a plurality of instrument valves 9 are respectively connected with the pressure leading pipeline A6 and the pressure leading pipeline B7 through instrument root valves 10.
Further, the high pressure vent line is connected to the bypass line 5 via a flanged valve 13.
Further, the line cut-off valve 3 is a gas-liquid linkage valve.
Further, the plurality of pressure detecting devices 8 are high-precision pressure transmitters.
Further, a valve B14 and a valve C15 are respectively disposed at the upstream and downstream of the bypass line 5, the valve B14 is disposed between the junction of the pressure guiding line A6 and the bypass line 5 and the valve a 12, and the valve C15 is disposed between the junction of the pressure guiding line B7 and the bypass line 5 and the valve a 12.
Further, the pressure leading pipeline A6 is connected with the bypass pipeline 5 through a valve E16, and the pressure leading pipeline A6 is connected with the line cut-off valve 3 through a valve F18; the pressure-guiding line B7 is connected with the bypass line 5 through a valve G17, and the pressure-guiding line B7 is connected with the line cut-off valve 3 through a valve H19.
Further, a vent pipe is arranged on the bypass line 5 between the valve B14 and the valve A12, and the vent pipe is connected with the bypass line 5 through a valve J20.
Further, two pressure detecting devices 8 are respectively disposed on the pressure guiding pipeline A6 and the pressure guiding pipeline B7.
Further, valve B14 and valve C15 are ball valves.
The concrete work is as follows:
when the gas pipeline is filled with high-pressure natural gas, if a certain place is broken or broken, the gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and linkage protection device can rapidly reduce and judge whether the pipeline is broken or broken according to the pressure of the upstream pipeline and the downstream pipeline, and meanwhile, the approximate position of the leakage point can be positioned by utilizing the time difference between the upstream and the downstream. When the pressure value monitored by the pressure detection device on the pressure leading pipeline is fed back to the controller in a continuous adoption period, the controller calculates and analyzes the pressure signal, and if the pressure value continuously drops and the dropping speed is greater than the preset pressure drop speed threshold value and keeps continuously dropping trend for a period of time, the controller controls the alarm to alarm and starts isolation protection measures, and the line cut-off valve at the upstream and downstream of the main pipeline of the gas pipeline valve chamber is closed to isolate the accident pipeline.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a gas transmission pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and interlocking protection device which characterized in that, this device includes:
the main pipeline (1) is sequentially provided with a tee joint A (2), a line cut-off valve (3) and a tee joint B (4), the line cut-off valve (3) is connected with a junction box (11) through a cable, and the line cut-off valve (3) is a gas-liquid linkage valve;
the two ends of the bypass pipeline (5) are respectively connected with the tee joint A (2) and the tee joint B (4), and the bypass pipeline (5) is provided with a valve A (12) and is connected with a high-pressure emptying pipeline; a valve B (14) and a valve C (15) are respectively arranged at the upstream and downstream of the bypass pipeline (5);
a pressure guiding pipeline A (6), one end of which is connected with the upstream of the bypass pipeline (5), the other end of which is connected with the line cut-off valve (3), a plurality of pressure detecting devices (8) are arranged on the pressure guiding pipeline A (6), the pressure detecting devices (8) are respectively connected with the pressure guiding pipeline A (6) through instrument valves (9), and the pressure detecting devices (8) are respectively connected with the junction box (11) through cables;
a pressure-guiding pipeline B (7), one end of which is connected with the line cut-off valve (3) and the other end of which is connected with the downstream of the bypass pipeline (5); a plurality of pressure detection devices (8) are arranged on the pressure leading pipeline B (7), the pressure detection devices (8) are respectively connected with the pressure leading pipeline B (7) through instrument valves (9), and the pressure detection devices (8) are respectively connected with the junction box (11) through cables;
and the input end of the controller is electrically connected with the junction box (11), and the output end of the controller is connected with the actuating mechanism of the line cut-off valve (3).
2. The gas pipeline valve chamber trunk pipeline pipe bursting monitoring, alarming and interlocking protection device according to claim 1 is characterized in that a plurality of instrument valves (9) are respectively connected with the pressure guiding pipeline A (6) and the pressure guiding pipeline B (7) through instrument root valves (10).
3. The gas pipeline valve chamber trunk pipeline pipe bursting monitoring alarm and interlocking protection device according to claim 1, wherein the high-pressure venting pipeline is connected with the bypass pipeline (5) through a flanged valve (13).
4. The gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and linkage protection device according to claim 1, wherein the pressure detection devices (8) are high-precision pressure transmitters.
5. The gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and linkage protection device according to claim 1, wherein the pressure guiding pipeline A (6) is connected with the bypass pipeline (5) through a valve E (16), and the pressure guiding pipeline A (6) is connected with the line cut-off valve (3) through a valve F (18); the pressure leading pipeline B (7) is connected with the bypass pipeline (5) through a valve G (17), and the pressure leading pipeline B (7) is connected with the line cut-off valve (3) through a valve H (19).
6. The gas pipeline valve chamber trunk pipeline explosion monitoring alarm and linkage protection device according to claim 1, wherein a blow-down pipe is arranged on a bypass pipeline (5) between the valve B (14) and the valve A (12), and the blow-down pipe is connected with the bypass pipeline (5) through a valve J (20).
7. The gas pipeline valve chamber trunk pipeline pipe explosion monitoring alarm and interlocking protection device according to claim 1 is characterized in that two pressure detection devices (8) are respectively arranged on the pressure leading pipeline A (6) and the pressure leading pipeline B (7).
8. The gas pipeline valve chamber trunk pipeline pipe bursting monitoring, alarming and interlocking protection device according to claim 1, wherein the valve B (14) and the valve C (15) are ball valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551126.2A CN109386738B (en) | 2018-12-18 | 2018-12-18 | Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551126.2A CN109386738B (en) | 2018-12-18 | 2018-12-18 | Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline |
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| Publication Number | Publication Date |
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| CN109386738A CN109386738A (en) | 2019-02-26 |
| CN109386738B true CN109386738B (en) | 2023-11-14 |
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| CN201811551126.2A Active CN109386738B (en) | 2018-12-18 | 2018-12-18 | Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline |
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Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952759A (en) * | 1974-08-14 | 1976-04-27 | M & J Valve Company | Liquid line break control system and method |
| FR2344009A1 (en) * | 1976-03-09 | 1977-10-07 | Siemens Ag | Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77) |
| GB1496436A (en) * | 1974-05-09 | 1977-12-30 | Hoechst Ag | Testing pipelines for leaks |
| JPH07243878A (en) * | 1994-03-04 | 1995-09-19 | Yazaki Corp | Gas leakage detector |
| JPH0886713A (en) * | 1994-09-19 | 1996-04-02 | Ito Koki Kk | Piping leakage detecting device |
| JPH10151110A (en) * | 1996-11-22 | 1998-06-09 | Olympus Optical Co Ltd | Gas supply device |
| JP2002168400A (en) * | 2000-12-01 | 2002-06-14 | Yazaki Corp | Self-diagnostic method of regulated pressure and gas leakage detecting apparatus |
| CN101354110A (en) * | 2007-07-23 | 2009-01-28 | 上海市莘格高级中学 | Intelligent coal gas leakage alarming and cutting system |
| JP2010096226A (en) * | 2008-10-15 | 2010-04-30 | Aichi Tokei Denki Co Ltd | Gas pressure monitoring device and gas grid constructing method |
| RU2396483C1 (en) * | 2009-05-07 | 2010-08-10 | Общество С Ограниченной Ответственностью "Газпромэнергодиагностика" | Bench for fluid and gas leaks control in ball cocks of mains |
| CN102313138A (en) * | 2010-07-06 | 2012-01-11 | 中国石油天然气集团公司 | Online density measurement method of petroleum transmission pipeline |
| CN202228922U (en) * | 2011-03-18 | 2012-05-23 | 北京爱社时代科技发展有限公司 | Energy saving management unit for pipeline gas supply |
| CN102588744A (en) * | 2012-03-12 | 2012-07-18 | 中冶南方工程技术有限公司 | On-line leakage detecting method of gas cutting-off system |
| CN202756726U (en) * | 2012-07-26 | 2013-02-27 | 中国石油天然气股份有限公司 | Gas-liquid linkage cut-off valve control system on oil-gas conveying pipeline |
| CN204477703U (en) * | 2015-02-09 | 2015-07-15 | 中煤科工集团武汉设计研究院有限公司 | A kind of pipeline valve bidirection press protective gear |
| CN106382466A (en) * | 2016-12-14 | 2017-02-08 | 中国石油天然气集团公司 | Gas conveying pipeline metering and pressure adjusting device and method |
| CN106439495A (en) * | 2016-12-14 | 2017-02-22 | 中国石油天然气集团公司 | Gas transmission pipe pressure and flow control system integrated skid-mounted device |
| CN206398370U (en) * | 2016-12-29 | 2017-08-11 | 重庆长风生物科技有限公司 | A kind of anti-backflow feeding system |
| CN206582536U (en) * | 2016-12-30 | 2017-10-24 | 四川川能恒远工程技术有限公司 | A kind of natural gas line makes somebody a mere figurehead security system |
| CN107355679A (en) * | 2017-07-31 | 2017-11-17 | 特瑞斯能源装备股份有限公司 | A kind of integrated natural gas line pressure testing feeder and its temprature control method |
| KR20180057391A (en) * | 2016-11-22 | 2018-05-30 | 박재호 | Continuous pressure leak test device module |
| CN207935760U (en) * | 2018-02-07 | 2018-10-02 | 广州莱仑特种装备有限公司 | A kind of self feed back denoising device for pipe network natural gas pressure regulating |
| CN209445069U (en) * | 2018-12-18 | 2019-09-27 | 中国石油天然气集团有限公司 | A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device |
-
2018
- 2018-12-18 CN CN201811551126.2A patent/CN109386738B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1496436A (en) * | 1974-05-09 | 1977-12-30 | Hoechst Ag | Testing pipelines for leaks |
| US3952759A (en) * | 1974-08-14 | 1976-04-27 | M & J Valve Company | Liquid line break control system and method |
| FR2344009A1 (en) * | 1976-03-09 | 1977-10-07 | Siemens Ag | Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77) |
| JPH07243878A (en) * | 1994-03-04 | 1995-09-19 | Yazaki Corp | Gas leakage detector |
| JPH0886713A (en) * | 1994-09-19 | 1996-04-02 | Ito Koki Kk | Piping leakage detecting device |
| JPH10151110A (en) * | 1996-11-22 | 1998-06-09 | Olympus Optical Co Ltd | Gas supply device |
| JP2002168400A (en) * | 2000-12-01 | 2002-06-14 | Yazaki Corp | Self-diagnostic method of regulated pressure and gas leakage detecting apparatus |
| CN101354110A (en) * | 2007-07-23 | 2009-01-28 | 上海市莘格高级中学 | Intelligent coal gas leakage alarming and cutting system |
| JP2010096226A (en) * | 2008-10-15 | 2010-04-30 | Aichi Tokei Denki Co Ltd | Gas pressure monitoring device and gas grid constructing method |
| RU2396483C1 (en) * | 2009-05-07 | 2010-08-10 | Общество С Ограниченной Ответственностью "Газпромэнергодиагностика" | Bench for fluid and gas leaks control in ball cocks of mains |
| CN102313138A (en) * | 2010-07-06 | 2012-01-11 | 中国石油天然气集团公司 | Online density measurement method of petroleum transmission pipeline |
| CN202228922U (en) * | 2011-03-18 | 2012-05-23 | 北京爱社时代科技发展有限公司 | Energy saving management unit for pipeline gas supply |
| CN102588744A (en) * | 2012-03-12 | 2012-07-18 | 中冶南方工程技术有限公司 | On-line leakage detecting method of gas cutting-off system |
| CN202756726U (en) * | 2012-07-26 | 2013-02-27 | 中国石油天然气股份有限公司 | Gas-liquid linkage cut-off valve control system on oil-gas conveying pipeline |
| CN204477703U (en) * | 2015-02-09 | 2015-07-15 | 中煤科工集团武汉设计研究院有限公司 | A kind of pipeline valve bidirection press protective gear |
| KR20180057391A (en) * | 2016-11-22 | 2018-05-30 | 박재호 | Continuous pressure leak test device module |
| CN106382466A (en) * | 2016-12-14 | 2017-02-08 | 中国石油天然气集团公司 | Gas conveying pipeline metering and pressure adjusting device and method |
| CN106439495A (en) * | 2016-12-14 | 2017-02-22 | 中国石油天然气集团公司 | Gas transmission pipe pressure and flow control system integrated skid-mounted device |
| CN206398370U (en) * | 2016-12-29 | 2017-08-11 | 重庆长风生物科技有限公司 | A kind of anti-backflow feeding system |
| CN206582536U (en) * | 2016-12-30 | 2017-10-24 | 四川川能恒远工程技术有限公司 | A kind of natural gas line makes somebody a mere figurehead security system |
| CN107355679A (en) * | 2017-07-31 | 2017-11-17 | 特瑞斯能源装备股份有限公司 | A kind of integrated natural gas line pressure testing feeder and its temprature control method |
| CN207935760U (en) * | 2018-02-07 | 2018-10-02 | 广州莱仑特种装备有限公司 | A kind of self feed back denoising device for pipe network natural gas pressure regulating |
| CN209445069U (en) * | 2018-12-18 | 2019-09-27 | 中国石油天然气集团有限公司 | A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device |
Non-Patent Citations (3)
| Title |
|---|
| 天然气管线截断阀执行机构引压管穿孔着火事故分析;石述忠;;石油化工安全环保技术(第05期);全文 * |
| 孙啸;安垚;李旺;李毅;张晗.某天然气长输管道线路截断阀保护能力研究.北京石油化工学院学报.2018,(第03期),全文. * |
| 陆美彤;罗叶新;何嘉欢.输气管道线路截断阀爆管保护模拟.天然气与石油.2015,(第05期),全文. * |
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