CN201053917Y - Acoustic wave leakage-determining system monitor for monitoring gas pipe leakage - Google Patents
Acoustic wave leakage-determining system monitor for monitoring gas pipe leakage Download PDFInfo
- Publication number
- CN201053917Y CN201053917Y CNU2007201538483U CN200720153848U CN201053917Y CN 201053917 Y CN201053917 Y CN 201053917Y CN U2007201538483 U CNU2007201538483 U CN U2007201538483U CN 200720153848 U CN200720153848 U CN 200720153848U CN 201053917 Y CN201053917 Y CN 201053917Y
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- leakage
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Abstract
The utility model discloses a monitoring device of an acoustic leak detection system for monitoring the leakage of a gas pipeline, and the monitoring device consists of a first monitoring sensor and a second monitoring sensor, both of which can be connected with the pipeline; wherein, the distance between the two installation points of the first monitoring sensor and the second monitoring sensor is within 100 meters. Each monitoring sensor directly connects with a discharge pipe of the pipeline, and the discharge pipe is connected with a valve, a pressured connection pipe and the pipeline in sequence. Besides, the total length from the installation points of the pipeline to the sensor is less than two meters. The monitoring device can make the operation of the acoustic leak detection system be more reliable, the maintenance be more convenient, and the system be complete, thereby improving the monitoring accuracy of the system on the leakage of the pipeline.
Description
Technical field
The utility model relates to a kind of monitoring device that leaks hunting of pipeline, more particularly, relates to a kind of leak hunting monitoring device of system of sound wave that whether gas transmission pipeline leak that is used to monitor.
Background technology
The inherent vice of Corrosion of Pipeline, tubing and paroxysmal disaster (impacting as earthquake, landslide, river) and artificial destruction etc. all can cause pipeline breaking and cause leakage, can threaten the safe operation of pipeline, cause enormous economic loss.Therefore, the monitoring of pipe leakage is vital, and it can be the early detection of pipe leakage and then rushes to repair and avoid accident expansion to strive for valuable time.The sound wave system of leaking hunting handles data in situ by the low frequency sound wave in the sensor acquisition pipeline section interval that is installed in the pipeline section two ends and by local mounted on-site data gathering processor, the time quantum of doubtful leak data and even leak data and local mounted GPS collection is sent to jointly the center aggregated data processor and the system host of system, determine by the model of comparison in the database whether pipeline has taken place to leak and calculate numerical value such as leakage rate, utilize time difference of the on-site data gathering processor transmission signal at pipeline section two ends to judge the position of leakage simultaneously.But monitoring precision depends on the installation site of sensor to a great extent, so that system obtains accurate acoustic signals, pipeline operation background noise, the necessary parameter of system filter etc.And the existing sound wave system of leaking hunting exists long acoustic signals decay, the sensor pressure guiding pipe of causing of sensor pressure guiding pipe that the improper unreasonable defective such as filtering difficulty that causes of acoustic signals decay, corresponding group sensor installing space that causes of pattern is installed owing to the installation site of sensor is improper, thus exist the accuracy of its monitoring to reduce, problem such as the leakage aperture of monitoring is bigger than normal.
Summary of the invention
The monitoring device that the purpose of this utility model is to provide a kind of sound wave that is used to monitor gas pipe leakage to leak hunting system, this monitoring device mainly is to leak hunting in the system and to exist long acoustic signals decay, the sensor pressure guiding pipe of causing of sensor pressure guiding pipe to install that pattern is improper to cause that acoustic signals decay, corresponding group sensor installing space are unreasonable to cause defective such as filtering difficulty owing to the installation site of sensor is improper in order to solve existing sound wave, thus exist the accuracy of its monitoring to reduce, problem such as the leakage aperture of monitoring is bigger than normal.
The leak hunting monitoring device of system of the sound wave that is used to monitor gas pipe leakage in the utility model includes first monitoring sensor and second monitoring sensor that can be connected with pipeline, the distance of two mounting points of described monitoring sensor on described pipeline is 0 to 100 meter, each described monitoring sensor bleeder pipe direct and on the described pipeline is connected, described bleeder pipe is connected with described pipeline after connecting valve, pressure guiding pipe successively, and described pipeline mounting points to described sensor total length is not more than 2 meters.
Be connected by cutting ferrule or threaded connector between described bleeder pipe and the described valve, between described valve and the described pressure guiding pipe, between described pressure guiding pipe and the described pipeline and between described bleeder pipe and the described inductor.
The point of interface of offering specially for the sound wave system of leaking hunting in the other interface of the pressure-measuring-point of described pressure guiding pipe and described pipeline, the other interface of temperature point or the pipeline is connected.
The installation gradient of described pressure guiding pipe horizontal segment is 12: 1.
Described pressure guiding pipe is the weldless steel tube of inner wall smooth.
The leak hunting monitoring device of system of the sound wave that is used to monitor gas pipe leakage in the utility model is adjusted to suitable spacing with the installation site of two monitoring sensors, provide installation length less than 2 meters pressure guiding pipe simultaneously, thereby can reduce the decay of acoustic signals to greatest extent, guarantee the accurate of the acoustic signals of gathering.Make sound wave leak hunting the operation of system more reliable, safeguard convenient fully with system, the raising system is to the accuracy of line leakage.
Description of drawings
Fig. 1 is an indiscriminate structural representation of surveying device in the utility model.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the leak hunting monitoring device of system of the sound wave that is used to monitor gas pipe leakage in the utility model includes the monitoring sensor 8,9 of one group of correspondence, respectively with monitoring sensor 8,9 direct-connected bleeder pipe 6 respectively.Monitoring sensor 8,9 bleeder pipe 6, valve 4 and the pressure guiding pipe 2 by separately respectively is installed on pipeline backbone or the pipeline branch line, installation site on pipeline backbone or pipeline branch line can be the interface of offering specially for the sound wave system of leaking hunting in the other interface of original pressure-measuring-point on pipeline backbone or the pipeline branch line, the other interface of temperature point or the pipeline, the spacing of the mounting points of two monitoring sensors 8,9 on pipeline is smaller or equal to 100 meters, distance is 10 to 75 meters preferably, preferably between 30 to 50.The mounting points (interface) that is connected with pipeline backbone or pipeline branch line from bleeder pipe 6 to the distance of monitoring sensor is not more than 2 meters.Each monitoring sensor 8,9 utilizes cutting ferrule 7,5,3,1 (or threaded connector) that bleeder pipe 6, valve 4 and pressure guiding pipe 2 are connected the interface of offering specially for the sound wave system of leaking hunting in the other interface of original pressure-measuring-point, temperature point side interface or the pipeline on back and pipeline backbone or the pipeline branch line in regular turn to be connected.Wherein bleeder pipe 6 and pressure guiding pipe 2 all adopt the weldless steel tube of inner wall smooth, and it is 12: 1 that pressure guiding pipe 2 horizontal segments are installed the gradient.
Monitoring device in the utility model can be according to the quantity of pipeline and the difference of monitoring point, and the form of being arranged to many group parallel connections or connecting, but as long as guarantee the corresponding one by one purpose of monitoring of can realizing of position distance between corresponding two monitoring sensors and two sensors, this concrete installation arrangement mode is that the distribution according to pipeline is easy to realize to one skilled in the art, therefore no longer describes in detail.
The leak hunting principle of work of monitoring device of system of the sound wave that is used to monitor gas pipe leakage in the utility model is: the fluid that flows at the pipeline backbone will produce the leakage sound wave when leaking, to propagate to the upstream and downstream of pipeline backbone with velocity of sound and should leak sound wave, the monitoring sensor that is arranged in pipeline upstream and downstream will capture the leakage acoustic signals with certain sound intensity.Under the certain situation of pipeline transportation fluid flow and pressure, the sound intensity that leaks sound wave is directly proportional with the size in leakage aperture.Installing space between monitoring sensor 8 and the monitoring sensor 9 should be guaranteed it smaller or equal to 100 meters, thereby makes two groups to forming between the sensor by fluid along small intensity difference and mistiming that journey and shock resistance are caused.When monitoring sensor 8 receives leakage acoustic signals or doubtful leakage acoustic signals prior to monitoring sensor 9, the sound wave system of leaking hunting will determine that this signal location is positioned at the left side of monitoring sensor 8 according to the difference of monitoring sensor received signal, and the signal that is received is sent to the leak hunting miscellaneous equipment of system of sound wave screens the particular location of determining whether leakage takes place and takes place, thereby realization leakage alarm.When monitoring sensor 9 receives leakage acoustic signals or doubtful leakage acoustic signals prior to monitoring sensor 8, the sound wave system of leaking hunting will determine that this signal location is positioned at the right side of monitoring sensor 9 according to the difference of monitoring sensor received signal, and the signal that is received is sent to the leak hunting miscellaneous equipment of system of sound wave screens the particular location of determining whether leakage takes place and takes place, thereby realization leakage alarm.Like this, the monitoring device in the utility model just can be realized the leakage monitoring to the pipeline backbone, and the miscellaneous equipment of coupling system is realized the purpose of leaking hunting.
In sum, the acoustic wave leak detection system that is used for the gas-monitoring pipe leakage adopts has following characteristics behind the monitoring device of the utility model:
1. the mounting means of sensor meets hydromechanical characteristic in the monitoring device, has improved system to pipe The accuracy of road leakage monitoring.
2. the suitable installing space of corresponding two monitoring sensors makes it to be conducive to the filter function in the programmed algorithm Realize.
3. the suitable installation length of pressure guiding pipe has reduced the acoustic signals decay in the monitoring device.
Claims (7)
1. a sound wave that is used to the to monitor gas pipe leakage monitoring device of system that leaks hunting, include first monitoring sensor (8) and second monitoring sensor (9) that can be connected with pipeline, it is characterized in that: the distance of two mounting points of described monitoring sensor (8,9) on described pipeline is 0 to 100 meter, each described monitoring sensor bleeder pipe (6) direct and on the described pipeline is connected, described bleeder pipe (6) connects valve (4) successively, pressure guiding pipe (2) back is connected with described pipeline, and described pipeline mounting points to described sensor total length is not more than 2 meters.
2. the sound wave of monitoring gas pipe leakage according to being used to described in the claim 1 monitoring device of system that leaks hunting is characterized in that: between described bleeder pipe (6) and the described valve (4), between described valve (4) and the described pressure guiding pipe (2), between described pressure guiding pipe (2) and the described pipeline and between described bleeder pipe (6) and the described inductor by cutting ferrule (5) or be threaded.
3. the sound wave of monitoring gas pipe leakage according to being used to described in claim 1 or 2 monitoring device of system that leaks hunting is characterized in that: the point of interface of offering specially for the sound wave system of leaking hunting in described pressure guiding pipe (2) and the other interface of the pressure-measuring-point of described pipeline, the other interface of temperature point or the pipeline is connected.
4. the sound wave of monitoring gas pipe leakage according to being used to described in claim 1 or 2 monitoring device of system that leaks hunting, it is characterized in that: the distance of two mounting points of described monitoring sensor (8,9) on described pipeline is 10 to 75 meters.
5. the sound wave of monitoring gas pipe leakage according to being used to described in claim 1 or 2 monitoring device of system that leaks hunting, it is characterized in that: the distance of two mounting points of described monitoring sensor (8,9) on described pipeline is 30 to 50 meters.
6. the sound wave of monitoring gas pipe leakage according to being used to described in claim 1 or 2 monitoring device of system that leaks hunting, it is characterized in that: the installation gradient of described pressure guiding pipe (2) horizontal segment is 12: 1.
7. the sound wave of monitoring gas pipe leakage according to being used to described in claim 1 or 2 monitoring device of system that leaks hunting, it is characterized in that: described pressure guiding pipe (2) is the weldless steel tube of inner wall smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201538483U CN201053917Y (en) | 2007-05-28 | 2007-05-28 | Acoustic wave leakage-determining system monitor for monitoring gas pipe leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201538483U CN201053917Y (en) | 2007-05-28 | 2007-05-28 | Acoustic wave leakage-determining system monitor for monitoring gas pipe leakage |
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| Publication Number | Publication Date |
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| CN201053917Y true CN201053917Y (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201538483U Expired - Fee Related CN201053917Y (en) | 2007-05-28 | 2007-05-28 | Acoustic wave leakage-determining system monitor for monitoring gas pipe leakage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936455A (en) * | 2010-07-20 | 2011-01-05 | 中国科学院声学研究所 | Infrasound and low-frequency sound sensor for monitoring fluid leakage in high-pressure pipeline |
| CN103267616A (en) * | 2013-06-04 | 2013-08-28 | 南京航空航天大学 | Restorable air conduit pipeline leakage detecting device and method |
| CN103727395A (en) * | 2013-12-20 | 2014-04-16 | 上海波汇通信科技有限公司 | Simulation system for simulative on medium leakage in pipelines |
| CN105699023A (en) * | 2016-01-19 | 2016-06-22 | 中石化石油工程设计有限公司 | Measuring device and method suitable for carbon dioxide pipeline exhaust and leakage test |
| CN107990152A (en) * | 2017-11-13 | 2018-05-04 | 中国石油大学(华东) | A kind of gas pipe leakage localization method based on same dual sensor |
-
2007
- 2007-05-28 CN CNU2007201538483U patent/CN201053917Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936455A (en) * | 2010-07-20 | 2011-01-05 | 中国科学院声学研究所 | Infrasound and low-frequency sound sensor for monitoring fluid leakage in high-pressure pipeline |
| CN101936455B (en) * | 2010-07-20 | 2013-02-13 | 中国科学院声学研究所 | Infrasound and low-frequency sound sensor for monitoring fluid leakage in high-pressure pipeline |
| CN103267616A (en) * | 2013-06-04 | 2013-08-28 | 南京航空航天大学 | Restorable air conduit pipeline leakage detecting device and method |
| CN103727395A (en) * | 2013-12-20 | 2014-04-16 | 上海波汇通信科技有限公司 | Simulation system for simulative on medium leakage in pipelines |
| CN103727395B (en) * | 2013-12-20 | 2016-06-08 | 上海波汇科技股份有限公司 | A kind of simulation system of carrying out analog detection that pipeline internal medium is leaked |
| CN105699023A (en) * | 2016-01-19 | 2016-06-22 | 中石化石油工程设计有限公司 | Measuring device and method suitable for carbon dioxide pipeline exhaust and leakage test |
| CN105699023B (en) * | 2016-01-19 | 2018-11-13 | 中石化石油工程设计有限公司 | Measuring device and measurement method suitable for carbon dioxide conduit emptying and leak-testing |
| CN107990152A (en) * | 2017-11-13 | 2018-05-04 | 中国石油大学(华东) | A kind of gas pipe leakage localization method based on same dual sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUYANG INTERNATIONAL GROUP CO., LTD. ACOUSTIC MONI Free format text: FORMER OWNER: BEIJING CENTURY HUAYANG ENERGY SCIENCE AND TECHNOLOGY CO., LTD. Owner name: BEIJING CENTURY HUAYANG ENERGY SCIENCE AND TECHNOL Free format text: FORMER OWNER: CANADIAN HUEYANG INTERNATIONAL GROUP INC. Effective date: 20100527 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TORONTO CITY, ONTARIO, CANADA TO: 5A02, BLOCK A, LUOKESHIDAI CENTER, 103, HUIZHONGLI, CHAOYANG DISTRICT, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100527 Address after: Beijing City, Chaoyang District Huizhong Lane 103 Rock era Centre Block A 5A02 Co-patentee after: Huayang International Group Limited by Share Ltd Patentee after: Beijing HUEYA Energy Technology Co., Ltd. Co-patentee after: The company sound monitoring system Address before: Toronto, Ontario, Canada Co-patentee before: Beijing HUEYA Energy Technology Co., Ltd. Patentee before: Canadian federal Yang Hua International Group Limited by Share Ltd |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20140528 |