CN202082629U - Natural gas pipeline leakage monitoring system - Google Patents
Natural gas pipeline leakage monitoring system Download PDFInfo
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- CN202082629U CN202082629U CN201120097392XU CN201120097392U CN202082629U CN 202082629 U CN202082629 U CN 202082629U CN 201120097392X U CN201120097392X U CN 201120097392XU CN 201120097392 U CN201120097392 U CN 201120097392U CN 202082629 U CN202082629 U CN 202082629U
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Abstract
A natural gas pipeline leakage monitoring system comprises a data unit and a terminal monitoring system; the data unit comprises an acquisition device, a signal processing module and a wireless communication device; the acquisition device is connected with a pressure transformer, a sound wave sensor and a flow signal converter (installed on a gas conveying and receiving station only); an acquired signal is transmitted to the acquisition device by the pressure transformer, the sound wave sensor and the flow signal converter (installed on a gas conveying and receiving station only), and is then transmitted to the signal processing module by the acquisition device for processing; the processed data is retrieved by the terminal monitoring system by the wireless communication device; the terminal monitoring system comprises a wireless communication device, a processing unit and an alarm device; the wireless communication device transmits the received data results to the processing unit which judges the result data, and the abnormal data are delivered to the alarm device for alarming. The natural gas pipeline leakage monitoring system provided by the utility model can effectively judge and timely alarm and position the leakage of a gas pipeline.
Description
Technical field
The utility model relates to a kind of natural gas line leakage monitoring system.
Background technique
Gas pipeline leakage not only brings enormous economic loss to enterprise, causes the waste of resource and the pollution of environment, and as untimely discovery, catastrophic failures such as initiation fire, blast, environmental pollution very easily threaten the safety of people's lives and properties.Therefore, the research gas pipeline leaks real time monitoring, finds leakage accident and accurate location rapidly, in time adopts an effective measure, and reduces the loss to greatest extent and to the pollution of environment, for conveying provides maximum safety guarantee, is very important.
Market trend and principle analysis:
The gas pipeline leak hunting method mainly contains two classes: direct leak hunting method and indirect method.Direct method is exactly to utilize to be preset at the outer Detecting element of pipeline (as the leak detection optical cable), directly measures the variation that leaking medium causes.This method can detect small seepage, and can locate, but requires when pipe-line construction and pipeline is installed simultaneously.Indirect method is exactly the generation of inferring leakage by the variation that detects the pipeline Operational Limits, as detect methods such as sound wave, pressure, flow, the sensitivity of these methods is not as the direct method height, the leakage that suitable detection is bigger, advantage is to install under the situation that does not influence production behind the pipe-line construction, and can constantly upgrade.
The key problem in technology of leakage monitoring system will solve the problem of two aspects: the one, and the warning that detects when pipeline takes place to leak, the 2nd, the accurate location of leakage point.My company adopts at these two key technologies: the method that sonic detection method, suction wave detection method and flow detection method combine, the advantage of comprehensive the whole bag of tricks remedies mutually to deficiency, to reach the purpose that leakage is carried out Rapid Alarm and accurately located.
Negative pressure wave method, the narrow limitation of flow method of comparison in the gas pipeline monitoring:
Negative pressure wave method, flow method of comparison are monitored, respectively at sensors such as pipe ends setting pressure, flows, set up collecting device, communication device, set up the terminal monitoring system in management station, the other end sends to management station's terminal monitoring system in real time with the signal data that collects, carry out analysis and judgement by monitoring of software to whether leaking, and to the leakage location of reporting to the police.The extensive use in the oil transport pipeline monitoring of this method, respond well.
Because gas compressibility is far longer than liquid, the negative pressure of widespread usage involves the flow method of comparison in the oil transport pipeline monitoring, and is all not exclusively suitable in gas transmission line.When leaking, gas line has identical characteristic with liquid, leak is because the inside and outside pressure reduction of pipeline, make the abrupt pressure reduction of leak, gas around the leak is because the existence of pressure reduction is additional to leak, in pipeline, produce the negative pressure fluctuation, make progress from leakage point, propagate in the downstream, and with exponential damping, smooth down gradually, but because the pressure elasticity of gas is very big, pressure reduces, and the gas in the pipeline begins to expand, and leaking the suction wave that produces can be diluted by volume expansion, when the pressure acquisition device of the Check point that passes to two ends, can produce than high attenuation (deciding apart from the two-end-point far and near distance) on leakage point, detection device is may be to the reaction of this variation in pressure less and reaction velocity is slower, but can be by increasing number of sensors, reaches to descend and catch timely and effectively leaking the pressure that produces.
After leaking generation, because leakage point gas is missed from pipeline, cause delivery end can produce measurement shoutage with the flow of receiving terminal, it is same because the pressure elasticity of gas is very big, the changes in flow rate (measurement shoutage) of delivery end and receiving terminal can not come out in rapid response when leaking generation, still can discern but prolong judgement time.
Advantage and the deficiency of sonic detection method in line leakage:
Sonic method is monitored, at pipeline on the way to terminal from starting point, every a segment distance sensor installation, signal amplifier, solar panel, backup battery, collecting device, communication device, with the signal that collects continuous send to the terminal monitoring system, carry out analysis and judgement by monitoring of software to whether leaking, leakage is positioned.
Mutual collision between well-known object all can produce vibration; sound; form sound wave; sound wave not only can be propagated in air; and can propagate in liquid and solid high speed, when on oil transportation gas steel pipe, remove protective layer artificially, in the processes such as sub-valve, punching that are installed, the sound wave of generation can be different from normal acoustic signals; after differentiating, can distinguish this signal, receive that by the monitoring point power of this signal and velocity of propagation can judge this signal (leakage) nidus position.This method can effectively be found to leak, and accurate positioning, but owing near the sound wave than generations such as big bangs various operations in the pipeline medium course of conveying, the pipeline may cause that all erroneous judgement is disconnected, therefore monitor by sound wave separately, its reliability is low, rate of false alarm height, its practical value not quite.
The model utility content
The purpose of this utility model is to provide a kind of natural gas line leakage monitoring system, solves the monitoring problem that exists in the natural gas line leakage process.
The purpose of this utility model is to be achieved through the following technical solutions:
The natural gas line leakage monitoring system, comprise data cell and terminal monitoring system, described data cell comprises collecting device, signal processing module and wireless communication apparatus, described collecting device and pressure transmitter, sonic sensor, flux signal transducer (only be installed on gas transmission and connect the gas station) connects, collecting device is connected with signal processing module, described signal processing module is connected with wireless communication apparatus, by pressure transmitter, sonic sensor, flux signal transducer (only be installed on gas transmission and connect the gas station) sends to collecting device with the signal of gathering, and send to signal processing module by collecting device and handle, the data after the processing are transferred by the terminal monitoring system by wireless communication apparatus; Described terminal monitoring system comprises wireless communication apparatus, processing unit and warning device, wireless communication apparatus is connected to processing unit, processing unit is connected with warning device, wireless communication apparatus sends to processing unit with the data result of receiving, processing unit is judged result data, abnormal data is transferred to warning device report to the police.Described processing unit comprises data conversion module, signal condition module, data preprocessing module.
Be provided with solar panel in described data cell, solar panel is connected to reserve battery, is powered by reserve battery.
Set up the terminal monitoring system in management station, monitoring of software is installed, sound wave, pressure, flow transducer, collecting device, signal processing module, communication device are installed in the pipe ends station, gather acoustic signals, pressure signal and flux signal in real time, management station's terminal monitoring system is transferred the data of each station data unit in real time by wireless communication apparatus; On the way to terminal from starting point, every a segment distance sonic sensor, pressure transducer, signal handling equipment, solar panel, backup battery, collecting device, signal processing module, communication device are installed on pipeline, gather acoustic signals, pressure signal in real time, the terminal monitoring system is transferred the data of each data cell in real time by wireless communication apparatus, carry out analysis and judgement by monitoring of software to whether leaking, to the leakage location of reporting to the police.The utility model can effectively be judged the leakage of gas line and the location of in time reporting to the police.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the modular structure figure of the natural gas line leakage monitoring system of the described employing pressure transmitter of the utility model embodiment, sonic sensor, flux signal transducer (only be installed on gas transmission and connect the gas station).
Embodiment
As shown in Figure 1, natural gas line leakage monitoring system described in the utility model, comprise data cell and terminal monitoring system, described data cell comprises collecting device, signal processing module and wireless communication apparatus, described collecting device and pressure transmitter, sonic sensor, flux signal transducer (only be installed on gas transmission and connect the gas station) connects, collecting device is connected with signal processing module, described signal processing module is connected with wireless communication apparatus, by pressure transmitter, sonic sensor, flux signal transducer (only be installed on gas transmission and connect the gas station) sends to collecting device with the signal of gathering, and send to signal processing module by collecting device and handle, the data after the processing are transferred by the terminal monitoring system by wireless communication apparatus; Described terminal monitoring system comprises wireless communication apparatus, processing unit and warning device, wireless communication apparatus is connected to processing unit, processing unit is connected with warning device, wireless communication apparatus sends to processing unit with the data result of receiving, processing unit is judged result data, abnormal data is transferred to warning device report to the police.Described processing unit comprises data conversion module, signal condition module, data preprocessing module.
Be provided with solar panel in described data cell, solar panel is connected to reserve battery, is powered by reserve battery.
Set up the terminal monitoring system in management station, monitoring of software is installed, in the pipe ends station, sound wave is installed, pressure, flow transducer, collecting device, signal processing module, communication device, gather acoustic signals in real time, pressure signal and flux signal, management station's terminal monitoring system is transferred the data of each station data unit in real time by wireless communication apparatus, on the way to terminal from starting point, every a segment distance sonic sensor is installed on pipeline, pressure transducer, signal handling equipment, solar panel, backup battery, collecting device, signal processing module, communication device, gather acoustic signals in real time, pressure signal, the terminal monitoring system is transferred the data of each data cell in real time by wireless communication apparatus, carry out analysis and judgement by monitoring of software to whether leaking, to the leakage location of reporting to the police.The utility model can effectively be judged the leakage of gas line and the location of in time reporting to the police.
Claims (3)
1. natural gas line leakage monitoring system, comprise data cell and terminal monitoring system, it is characterized in that, described data cell comprises collecting device, signal processing module and wireless communication apparatus, described collecting device is connected with pressure transmitter, sonic sensor, flux signal transducer, collecting device is connected with signal processing module, and described signal processing module is connected with wireless communication apparatus; Described terminal monitoring system comprises wireless communication apparatus, processing unit and warning device, and wireless communication apparatus is connected to processing unit, and processing unit is connected with warning device.
2. natural gas line leakage monitoring system according to claim 1 is characterized in that, is provided with solar panel in described data cell, and solar panel is connected to reserve battery, is powered to data cell by reserve battery.
3. natural gas line leakage monitoring system according to claim 1 is characterized in that, described processing unit comprises data conversion module, signal condition module, data preprocessing module.
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| CN201120097392XU CN202082629U (en) | 2011-04-06 | 2011-04-06 | Natural gas pipeline leakage monitoring system |
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| CN201120097392XU CN202082629U (en) | 2011-04-06 | 2011-04-06 | Natural gas pipeline leakage monitoring system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537670A (en) * | 2012-03-05 | 2012-07-04 | 北京化工大学 | Pipeline leakage diagnosis method |
| CN103090193A (en) * | 2013-01-08 | 2013-05-08 | 浙江大学 | Device and method for detection and location of submarine oil pipeline leakage |
| CN104989953A (en) * | 2015-07-07 | 2015-10-21 | 成都国光电子仪表有限责任公司 | Multipoint monitoring system suitable for being distributed along natural gas pipeline |
| CN104991476A (en) * | 2015-07-13 | 2015-10-21 | 成都国光电子仪表有限责任公司 | A gas station system convenient to judge positions of monitoring points |
| CN105337231A (en) * | 2014-08-15 | 2016-02-17 | 中国广核集团有限公司 | Detection and optimization method for power generation and distribution system of nuclear power station |
| CN105571789A (en) * | 2015-12-19 | 2016-05-11 | 成都尼奥尔电子科技有限公司 | Wireless natural gas detector based on wireless receiving circuit |
| CN105927863A (en) * | 2016-05-07 | 2016-09-07 | 大连理工大学 | DMA zone pipe network leakage online detecting and positioning system and detecting and positioning method thereof |
| CN106151884A (en) * | 2016-08-24 | 2016-11-23 | 江苏金策海创电子科技有限公司 | Buried oil and gas pipes warning monitoring system |
| CN106352247A (en) * | 2016-08-31 | 2017-01-25 | 哈尔滨圣昌科技开发有限公司 | Pipe network monitoring control system and monitoring control method achieved by means of system |
| CN106352243A (en) * | 2016-10-20 | 2017-01-25 | 山东科技大学 | Gas transmission pipeline leakage detection system based on acoustic method |
| CN108006441A (en) * | 2017-12-21 | 2018-05-08 | 廊坊市蓝德采油技术开发有限公司 | A kind of oil field gathering and transportation oil-piping leakage monitoring system |
| CN109357167A (en) * | 2018-10-30 | 2019-02-19 | 长春市万易科技有限公司 | A kind of gas pipeline device for detecting leak point and detection method |
| CN111256922A (en) * | 2020-03-18 | 2020-06-09 | 国网山东省电力公司青州市供电公司 | Cable oversheath nitrogen gas detection device |
| CN112483907A (en) * | 2020-11-10 | 2021-03-12 | 深圳市祥为测控技术有限公司 | Pipeline leakage detection system and method |
| CN117366889A (en) * | 2023-12-06 | 2024-01-09 | 胜利油田胜兴集团有限责任公司 | Pressure control-based heat pipe type solar monitoring and early warning system |
-
2011
- 2011-04-06 CN CN201120097392XU patent/CN202082629U/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537670B (en) * | 2012-03-05 | 2013-05-29 | 北京化工大学 | Pipeline leakage diagnosis method |
| CN102537670A (en) * | 2012-03-05 | 2012-07-04 | 北京化工大学 | Pipeline leakage diagnosis method |
| CN103090193A (en) * | 2013-01-08 | 2013-05-08 | 浙江大学 | Device and method for detection and location of submarine oil pipeline leakage |
| CN103090193B (en) * | 2013-01-08 | 2014-12-03 | 浙江大学 | Device for detection and location of submarine oil pipeline leakage |
| CN105337231B (en) * | 2014-08-15 | 2017-12-12 | 中国广核集团有限公司 | Nuclear power station is transported to electric system detection and optimization method |
| CN105337231A (en) * | 2014-08-15 | 2016-02-17 | 中国广核集团有限公司 | Detection and optimization method for power generation and distribution system of nuclear power station |
| CN104989953A (en) * | 2015-07-07 | 2015-10-21 | 成都国光电子仪表有限责任公司 | Multipoint monitoring system suitable for being distributed along natural gas pipeline |
| CN104991476A (en) * | 2015-07-13 | 2015-10-21 | 成都国光电子仪表有限责任公司 | A gas station system convenient to judge positions of monitoring points |
| CN105571789A (en) * | 2015-12-19 | 2016-05-11 | 成都尼奥尔电子科技有限公司 | Wireless natural gas detector based on wireless receiving circuit |
| CN105927863B (en) * | 2016-05-07 | 2018-06-29 | 大连理工大学 | DMA subregions pipeline network leak on-line checking alignment system and its detection localization method |
| CN105927863A (en) * | 2016-05-07 | 2016-09-07 | 大连理工大学 | DMA zone pipe network leakage online detecting and positioning system and detecting and positioning method thereof |
| CN106151884A (en) * | 2016-08-24 | 2016-11-23 | 江苏金策海创电子科技有限公司 | Buried oil and gas pipes warning monitoring system |
| CN106352247A (en) * | 2016-08-31 | 2017-01-25 | 哈尔滨圣昌科技开发有限公司 | Pipe network monitoring control system and monitoring control method achieved by means of system |
| CN106352247B (en) * | 2016-08-31 | 2018-05-01 | 哈尔滨圣昌科技开发有限公司 | A kind of pipe network monitoring control system and the monitoring and control method realized using the system |
| CN106352243A (en) * | 2016-10-20 | 2017-01-25 | 山东科技大学 | Gas transmission pipeline leakage detection system based on acoustic method |
| CN108006441A (en) * | 2017-12-21 | 2018-05-08 | 廊坊市蓝德采油技术开发有限公司 | A kind of oil field gathering and transportation oil-piping leakage monitoring system |
| CN109357167A (en) * | 2018-10-30 | 2019-02-19 | 长春市万易科技有限公司 | A kind of gas pipeline device for detecting leak point and detection method |
| CN111256922A (en) * | 2020-03-18 | 2020-06-09 | 国网山东省电力公司青州市供电公司 | Cable oversheath nitrogen gas detection device |
| CN111256922B (en) * | 2020-03-18 | 2022-03-15 | 国网山东省电力公司青州市供电公司 | Cable oversheath nitrogen gas detection device |
| CN112483907A (en) * | 2020-11-10 | 2021-03-12 | 深圳市祥为测控技术有限公司 | Pipeline leakage detection system and method |
| CN112483907B (en) * | 2020-11-10 | 2022-02-11 | 深圳市祥为测控技术有限公司 | Pipeline leakage detection system and method |
| CN117366889A (en) * | 2023-12-06 | 2024-01-09 | 胜利油田胜兴集团有限责任公司 | Pressure control-based heat pipe type solar monitoring and early warning system |
| CN117366889B (en) * | 2023-12-06 | 2024-02-20 | 胜利油田胜兴集团有限责任公司 | Pressure control-based heat pipe type solar monitoring and early warning system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140406 |