CN104500984A - Sub-high pressure A gas pipeline leakage monitoring system - Google Patents
Sub-high pressure A gas pipeline leakage monitoring system Download PDFInfo
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- CN104500984A CN104500984A CN201410842632.2A CN201410842632A CN104500984A CN 104500984 A CN104500984 A CN 104500984A CN 201410842632 A CN201410842632 A CN 201410842632A CN 104500984 A CN104500984 A CN 104500984A
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Abstract
The invention discloses a sub-high pressure A gas pipeline leakage monitoring system, which comprises a main station system and a substation system; the substation system comprises an infrasonic sensor, a pre-amplifier, a data acquisition system and a GPS (Global Positioning System) time service module; the main station system comprises a data processing system and a waveform display terminal; the infrasonic sensor is connected with a monitored pipeline, and the data acquisition system is connected with the data processing system; the infrasonic sensor receives and converts infrasonic signals in the pipeline into electric signals in real time; the pre-amplifier amplifies, filters and then transmits the electric signals to the data acquisition system; the data acquisition system converts the electric signals into data, and sends the acquired infrasonic data to the data processing system; by analyzing and processing the data sent by the data acquisition system, the data processing system judges whether and where leakage takes place. When the leakage of the gas pipeline happens, the sub-high pressure A gas pipeline leakage monitoring system can rapidly give the alarm in time, so that hazards caused by an accident can be reduced.
Description
Technical field
The present invention relates to a kind of sub-high pressure A fuel gas pipeline leakage monitoring technology, particularly relate to a kind of fuel gas pipeline leakage monitoring system.
Background technique
In recent years, rapidly, the area distribution of gas ductwork is mostly near living area, commercial district etc., and therefore the safe operation of pipeline just seems and is even more important in gas ductwork development.Once pipeline generation leakage causes an explosion accident, huge economic loss and severe social influence will be produced.The major way of current gas pipeline safety detection is artificial line walking, and not only cost is high, and inefficiency.When pipeline that pawnshop is located in the ground occurs to leak, manually can not Timeliness coverage, once gas leakage runs up to a certain degree, pipeline is just in a kind of hazardous condition, likely blasts at any time.
In order to ensure the safe operation of gas pipeline, exploitation fuel gas pipeline leakage monitoring technology is very necessary., can there is the leakage initial stage at pipeline in fuel gas pipeline leakage monitoring system, the position of timely and effective locating leaks exactly makes relevant departments can take measures in the very first time, the harm that minimizing accident causes.
At present, a kind of leak hunting method the most frequently used in manual inspection Fa Shi city gas company, manual inspection method needs monitoring personnel to utilize monitor regularly to be monitored by methods such as seeing, hear, listen in line walking, and the method inefficiency of artificial line walking, monitoring effect is poor.Smart pig monitoring method is one monitoring method comparatively widely, climbs machine and not only can monitor the leakage point of pipeline, can also carry out comprehensive monitoring to the intact degree etc. of the pressure in pipeline, flow, temperature, tube wall.But when the machine of climbing is monitored, have stricter requirement to the elbow of pipeline and connection place, the machine of climbing needs the pipeline of the least possible elbow, also needs operator to have rich experience simultaneously.
Summary of the invention
The object of this invention is to provide a kind of fuel gas pipeline leakage monitoring system can monitored gas pipeline quickly and occur to leak.
The object of the invention is to be achieved through the following technical solutions:
Fuel gas pipeline leakage monitoring system of the present invention, comprises main station system and substation system;
Described substation system comprises the infrasonic sensor, preamplifier, data acquistion system, the GPS time service module that connect successively;
Described main station system comprises interconnective data processing system, waveform video terminal;
Described infrasonic sensor is connected with monitored pipeline, and described data acquistion system and described data processing system are by data communication model calling;
Infrasonic wave signal in described infrasonic sensor real-time reception pipeline is also converted to electrical signal;
Described preamplifier is transferred to data acquistion system electrical signal after amplification filtering process;
Described data acquistion system converts electrical signals to data, and by data communication module, the infrasonic wave data collected is sent to data processing system;
The data that described data processing system is sent by analyzing and processing data acquisition system, judge whether leak generation and leak the position occurred.
As seen from the above technical solution provided by the invention, the fuel gas pipeline leakage monitoring system that the embodiment of the present invention provides, owing to comprising main station system and substation system; Substation system comprises the infrasonic sensor, preamplifier, data acquistion system, the GPS time service module that connect successively; Main station system comprises interconnective data processing system, waveform video terminal; Infrasonic sensor is connected with monitored pipeline, and data acquistion system and described data processing system are by data communication model calling; Infrasonic wave signal in infrasonic sensor real-time reception pipeline is also converted to electrical signal; Preamplifier is transferred to data acquistion system electrical signal after amplification filtering process; Data acquistion system converts electrical signals to data, and by data communication module, the infrasonic wave data collected is sent to data processing system; The data that data processing system is sent by analyzing and processing data acquisition system, judge whether leak generation and leak the position occurred.When gas pipeline occurs to leak, alarm can be sent quickly, relevant departments can be taken measures in time, the harm that minimizing accident causes.
Accompanying drawing explanation
The structural representation of the fuel gas pipeline leakage monitoring system that Fig. 1 provides for the embodiment of the present invention.
Embodiment
To be described in further detail the embodiment of the present invention below.
Fuel gas pipeline leakage monitoring system of the present invention, its preferably embodiment be:
Comprise main station system and substation system;
Described substation system comprises the infrasonic sensor, preamplifier, data acquistion system, the GPS time service module that connect successively;
Described main station system comprises interconnective data processing system, waveform video terminal;
Described infrasonic sensor is connected with monitored pipeline, and described data acquistion system and described data processing system are by data communication model calling;
Infrasonic wave signal in described infrasonic sensor real-time reception pipeline is also converted to electrical signal;
Described preamplifier is transferred to data acquistion system electrical signal after amplification filtering process;
Described data acquistion system converts electrical signals to data, and by data communication module, the infrasonic wave data collected is sent to data processing system;
The data that described data processing system is sent by analyzing and processing data acquisition system, judge whether leak generation and leak the position occurred.
Described infrasonic sensor reception sound wave frequency is 0Hz ~ 20Hz;
Described data communication module comprises Redundancy Design, and described Redundancy Design comprises wireless and wire communication mode.
Described GPS time service module is calibrated system time, and for solving the time synchronization problem between different monitoring points, the time service precision of described GPS module is in nanosecond rank.
The two ends of described monitored pipeline are respectively equipped with described substation system, the data that the data acquistion system that described data processing system receives multiple described substation system sends, use signal transacting and recognition algorithm to carry out process and comprehensive analysis to data, judge whether to there is incident of leakage and determine to leak the position occurred.
The signal processing modes such as expert database, fuzzy neural network and wavelet transformation are adopted to carry out comprehensive analytical calculation to signal in described signal transacting and recognition algorithm.
Need the concrete signal arrived according to on-site collection in practical application, train when simulation is disturbed, improve the noise reduction of system and remove the ability of interference, thus make system reach warning accurately, positioning precision is high.
Fuel gas pipeline leakage monitoring system of the present invention, when gas pipeline occurs to leak, can send alarm quickly, relevant departments can be taken measures in time, the harm that minimizing accident causes.
Specific embodiment:
Fig. 1 is fuel gas pipeline leakage monitoring system basic structure schematic diagram, mainly comprises:
Substation system and main station system two large divisions; Substation system comprises infrasonic sensor, preamplifier, data acquistion system, GPS time service module, communication system; Main station system comprises data processing system, waveform video terminal etc.
Wherein: at least one infrasonic sensor of substation being arranged on monitoring pipe ends, the infrasonic wave signal in infrasonic sensor real-time reception pipeline is also converted to electrical signal; Preamplifier is transferred to data acquistion system electrical signal after amplification filtering process; Data acquistion system converts electrical signals to data and by data communication module, the infrasonic wave data collected is sent to data processing system; The data that data processing system is sent by analysing and processing acquisition system, judge whether leak generation and leak the position occurred.
The present invention compared with prior art has obvious advantage.From above technological scheme, the leakage of pipeline internal medium can produce infrasonic wave, by medium infrasonic wave signal in Real-Time Monitoring pipeline, native system judges whether gas pipeline there occurs leakage, native system proposes a kind of novel sub-high pressure A fuel gas pipeline leakage monitoring mode.Compared with prior art, this programme can uninterruptedly be monitored in real time, and promptly and accurately, efficiency is high for pipe leakage alarm, improves the level of scientific management, according to warning message, safeguards timely to pipeline, thus it is minimum that harm is dropped to.
The present invention is in the limited field of technical development, no matter all have large improvement in method, in structure or functionally, and create handy effect, and there is effect of enhancement really, thus be more suitable for practicality, be really a new and innovative, progressive, practical new design.
The present invention adopts high sensitivity infrasonic sensor, and the Redundancy Design of system decreases the possibility of system failure generation.Field apparatus adopts backup design, even if a certain section failure also can ensure normal work; GPS time service is adopted to improve the positioning precision of system.
The present invention adopts special high sensitivity infrasonic sensor and special data processing and recognition algorithm, and the system time synchronization precision of different monitoring points is ensured by module during high-precision GPS school, when pipe leakage event is occurred, can report to the police in time, efficiently and accurately.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. a fuel gas pipeline leakage monitoring system, is characterized in that, comprises main station system and substation system;
Described substation system comprises the infrasonic sensor, preamplifier, data acquistion system, the GPS time service module that connect successively;
Described main station system comprises interconnective data processing system, waveform video terminal;
Described infrasonic sensor is connected with monitored pipeline, and described data acquistion system and described data processing system are by data communication model calling;
Infrasonic wave signal in described infrasonic sensor real-time reception pipeline is also converted to electrical signal;
Described preamplifier is transferred to data acquistion system electrical signal after amplification filtering process;
Described data acquistion system converts electrical signals to data, and by data communication module, the infrasonic wave data collected is sent to data processing system;
The data that described data processing system is sent by analyzing and processing data acquisition system, judge whether leak generation and leak the position occurred.
2. fuel gas pipeline leakage monitoring system according to claim 1, is characterized in that, described infrasonic sensor reception sound wave frequency is 0Hz ~ 20Hz.
3. fuel gas pipeline leakage monitoring system according to claim 2, is characterized in that, described data communication module comprises Redundancy Design, and described Redundancy Design comprises wireless and wire communication mode.
4. fuel gas pipeline leakage monitoring system according to claim 3, is characterized in that, described GPS time service module is calibrated system time, and for solving the time synchronization problem between different monitoring points, the time service precision of described GPS module is in nanosecond rank.
5. fuel gas pipeline leakage monitoring system according to claim 4, it is characterized in that, the two ends of described monitored pipeline are respectively equipped with described substation system, the data that the data acquistion system that described data processing system receives multiple described substation system sends, use signal transacting and recognition algorithm to carry out process and comprehensive analysis to data, judge whether to there is incident of leakage and determine to leak the position occurred.
6. fuel gas pipeline leakage monitoring system according to claim 5, is characterized in that, adopts the signal processing modes such as expert database, fuzzy neural network and wavelet transformation to carry out comprehensive analytical calculation to signal in described signal transacting and recognition algorithm.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151887A (en) * | 2016-07-01 | 2016-11-23 | 北京华科合创科技发展有限公司 | A kind of gas oil pipe leakage comprehensive monitor system |
| CN106597377A (en) * | 2016-12-15 | 2017-04-26 | 北京科创三思科技发展有限公司 | Infrasonic wave in-pipe robot quick positioning system and infrasonic wave in-pipe robot quick positioning method |
| CN106764466A (en) * | 2016-11-22 | 2017-05-31 | 北京科创三思科技发展有限公司 | Built-in solar cell flame-proof type remote wireless data collection substation RTU |
| CN107270133A (en) * | 2017-05-25 | 2017-10-20 | 湖北省郢声机电科技有限责任公司 | A kind of pipeline fluid leakage positioner and its application method |
| CN107504374A (en) * | 2017-10-20 | 2017-12-22 | 北京科创三思科技发展有限公司 | Gas pipeline acoustic monitoring system |
| CN108758354A (en) * | 2018-05-03 | 2018-11-06 | 太原理工大学 | Heat supply pipeline leak detection system and method based on infrasound and reference point |
| CN109854965A (en) * | 2017-11-30 | 2019-06-07 | 中国科学院声学研究所 | One kind being used for natural gas station pipeline leakage checking system and its method |
| CN110260168A (en) * | 2019-06-12 | 2019-09-20 | 青岛荣轩达检测服务有限公司 | Gas pipeline safety pre-warning system and its method |
| CN112178360A (en) * | 2020-06-30 | 2021-01-05 | 中海福建天然气有限责任公司 | System and method for rapidly positioning infrasonic pipeline robot |
| CN112483908A (en) * | 2020-11-23 | 2021-03-12 | 中国华能集团清洁能源技术研究院有限公司 | Pipeline monitoring system and monitoring method based on sound waves |
| CN112555691A (en) * | 2020-11-19 | 2021-03-26 | 山东科技大学 | High-gain low-power-consumption pipeline acoustic signal extraction method |
| CN112594559A (en) * | 2020-11-25 | 2021-04-02 | 中国海洋石油集团有限公司 | Submarine oil pipeline leakage monitoring system and method |
| CN113639209A (en) * | 2020-05-11 | 2021-11-12 | 中国石油天然气股份有限公司 | Intermittent oil pipeline detection system and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151887A (en) * | 2016-07-01 | 2016-11-23 | 北京华科合创科技发展有限公司 | A kind of gas oil pipe leakage comprehensive monitor system |
| CN106764466A (en) * | 2016-11-22 | 2017-05-31 | 北京科创三思科技发展有限公司 | Built-in solar cell flame-proof type remote wireless data collection substation RTU |
| CN106597377A (en) * | 2016-12-15 | 2017-04-26 | 北京科创三思科技发展有限公司 | Infrasonic wave in-pipe robot quick positioning system and infrasonic wave in-pipe robot quick positioning method |
| CN107270133A (en) * | 2017-05-25 | 2017-10-20 | 湖北省郢声机电科技有限责任公司 | A kind of pipeline fluid leakage positioner and its application method |
| CN107504374A (en) * | 2017-10-20 | 2017-12-22 | 北京科创三思科技发展有限公司 | Gas pipeline acoustic monitoring system |
| CN109854965A (en) * | 2017-11-30 | 2019-06-07 | 中国科学院声学研究所 | One kind being used for natural gas station pipeline leakage checking system and its method |
| CN108758354A (en) * | 2018-05-03 | 2018-11-06 | 太原理工大学 | Heat supply pipeline leak detection system and method based on infrasound and reference point |
| CN108758354B (en) * | 2018-05-03 | 2023-09-12 | 太原理工大学 | Heat supply pipeline leakage detection system and method based on infrasonic wave and reference point |
| CN110260168A (en) * | 2019-06-12 | 2019-09-20 | 青岛荣轩达检测服务有限公司 | Gas pipeline safety pre-warning system and its method |
| CN113639209A (en) * | 2020-05-11 | 2021-11-12 | 中国石油天然气股份有限公司 | Intermittent oil pipeline detection system and method |
| CN112178360A (en) * | 2020-06-30 | 2021-01-05 | 中海福建天然气有限责任公司 | System and method for rapidly positioning infrasonic pipeline robot |
| CN112555691A (en) * | 2020-11-19 | 2021-03-26 | 山东科技大学 | High-gain low-power-consumption pipeline acoustic signal extraction method |
| CN112483908A (en) * | 2020-11-23 | 2021-03-12 | 中国华能集团清洁能源技术研究院有限公司 | Pipeline monitoring system and monitoring method based on sound waves |
| CN112594559A (en) * | 2020-11-25 | 2021-04-02 | 中国海洋石油集团有限公司 | Submarine oil pipeline leakage monitoring system and method |
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Inventor after: Gao Shunli Inventor after: Wang Liangfeng Inventor after: Zhang Hao Inventor after: Gao Fengchao Inventor after: Jiao Jianying Inventor after: Wu Bo Inventor after: Liu Yao Inventor after: Tan Songling Inventor after: Qian Di Inventor after: Gao Min Inventor after: Yang Xiaofeng Inventor after: Li Wei Inventor before: Yang Xiaofeng Inventor before: Li Wei Inventor before: Wang Liangfeng Inventor before: Zhang Hao Inventor before: Gao Fengchao |
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