CN210219339U - Intelligent drainage device for assisting alternating-current stray current in pipe pass acoustic monitoring - Google Patents
Intelligent drainage device for assisting alternating-current stray current in pipe pass acoustic monitoring Download PDFInfo
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- CN210219339U CN210219339U CN201920307323.3U CN201920307323U CN210219339U CN 210219339 U CN210219339 U CN 210219339U CN 201920307323 U CN201920307323 U CN 201920307323U CN 210219339 U CN210219339 U CN 210219339U
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Abstract
The utility model relates to an intelligent current drainage device for assisting alternating stray current in pipeline sub-acoustic monitoring, which is characterized in that the intelligent current drainage device comprises a pipeline sub-acoustic monitoring system, a record storage module, an alternating current measurement transmission module, a central processing unit and a current drainage control module; the central processing unit is respectively connected with the pipeline infrasonic wave monitoring system, the recording storage module, the alternating current measurement transmission module and the drainage control module, and the drainage control module is also connected with a field drainage device; the pipeline infrasonic wave monitoring system is used for monitoring infrasonic wave monitoring data of a pipeline in real time; exchange and measure transmission module and be used for the measured value that acquires pipeline stray current in real time, the utility model discloses can extensively be used for burying in the ground metal oil gas pipeline security detection area.
Description
Technical Field
The utility model relates to an supplementary alternating current stray current's of pipe pass sound wave monitoring intelligence current drainage device belongs to and buries ground metal oil gas pipeline security detection area.
Background
In recent years, with rapid development of economy, increase of energy demand and adjustment of energy structures, the laying amount of oil and gas long-distance pipelines in China is remarkably increased. The construction of a high-voltage power grid and an electrified railway is developed at the same high speed, and due to the limitation of geographical positions, in the design and construction processes of an oil gas pipeline and the electrified railway, the situation of parallel or cross-crossing laying inevitably occurs, the buried oil gas pipeline is interfered and corroded by stray current, and if the buried oil gas pipeline is not processed properly, great harm is caused. The alternating stray current mainly causes interference to adjacent buried pipelines or metal bodies through capacitive, resistive and inductive coupling, so that the alternating stray current flowing in and out of the pipelines is generated to cause corrosion. The interference voltage generated by induction on the pipes near the electric railway varies from several volts, tens of volts to hundreds of volts, and the action of the interference voltage is intermittent and varies with the load of the electric railway power grid. One effective measure for protecting the pipeline from stray currents is drainage protection.
The sound wave can be propagated in various media, the high-frequency component of the sound wave is fast in attenuation speed in the propagation process due to the characteristics of short wavelength, high frequency and the like, and signals cannot be detected due to attenuation possibly for long-distance transmission. Infrasonic waves have the propagation characteristics of low frequency, long wavelength, and slow energy attenuation, and can generally propagate over kilometers of distance. Therefore, the method for extracting the time domain features and the frequency domain features of the sound wave signals to position the leakage points of the gas transmission pipeline has a great development prospect, the dangerous accidents can be prevented in advance through the method, and the safety guarantee level of the pipeline is improved. The neural network theory is combined with a predictive control algorithm to form a neural network predictive control. Firstly, a neural network identification model is established as a prediction model by utilizing the characteristics that the neural network can fully approximate any complex nonlinear function, can learn and adapt to the dynamic characteristics of an uncertain system, can quickly perform real-time operation by adopting a parallel distribution processing algorithm and the like. The intelligent predictive control overcomes the defects that the traditional predictive control algorithm is low in precision, only suitable for a linear system, lack of self-learning and self-organizing functions and low in robustness. The algorithms can handle abnormal conditions such as nonlinearity, multiple targets, constraint conditions and the like.
However, the conventional drainage device mainly has the following problems: 1) the detection and the drainage are carried out separately, and no drainage effect feedback exists in the drainage process, so that 'over drainage' or 'under drainage' can be formed; 2) the drainage current can be measured only by manually disconnecting and connecting the drainage device, and the live operation is inconvenient and unsafe; 3) whether the drainage device is in failure or not cannot be found in time; 4) for the interference of the electrified railway, the change of the pipe-to-ground potential of the pipeline has the time characteristic and corresponds to the running time of the train, so that the protection potential of the pipeline is difficult to be accurately, timely and intelligently maintained at a relatively stable value.
Disclosure of Invention
To the above problem, the utility model aims at providing a supplementary alternating current stray current's of pipeline infrasonic wave monitoring intelligent current drainage device with current drainage effect feedback and convenient safety.
In order to achieve the purpose, the utility model adopts the following technical proposal: an intelligent drainage device for assisting alternating-current stray current in pipeline sub-acoustic monitoring is characterized by comprising a pipeline sub-acoustic monitoring system, a recording and storing module, an alternating-current measurement and transmission module, a central processing unit and a drainage control module; the central processing unit is respectively connected with the pipeline infrasonic wave monitoring system, the recording storage module, the alternating current measurement transmission module and the drainage control module, and the drainage control module is also connected with a field drainage device; the pipeline infrasonic wave monitoring system is used for monitoring infrasonic wave monitoring data of a pipeline in real time; the alternating current measurement transmission module is used for acquiring a measured value of the pipeline stray current in real time.
Preferably, the intelligent drainage device further comprises an alarm module, and the alarm module is respectively connected with the alternating current measurement transmission module and the central processing unit.
Preferably, exchange and measure transmission module and include GPS and/or big dipper two positioning unit, stray current measuring unit and electric potential judgement unit, stray current measuring unit connects respectively GPS and/or big dipper two positioning unit and electric potential judgement unit, electric potential judgement unit still connects alarm module.
The utility model discloses owing to take above technical scheme, it has following advantage: 1. the utility model discloses owing to be provided with pipeline infrasonic wave monitoring system, exchange and measure transmission module, central processing unit and drainage control module, have exchange stray current drainage and measure advantages such as prejudgement, be favorable to in time getting rid of stray current interference protection pipeline safety, compare traditional stray current drainage device, have in time, accurate, intelligent advantage. 2. Compare traditional stray current drainage device, the utility model discloses an exchange and measure transmission module and include GPS and/or big dipper two positioning unit and stray current measuring unit, can accurately carry out the stray current and measure. 3. The utility model discloses owing to be provided with alarm module, utilize still not recovering the condition to normal potential after on-the-spot current drainage device current drainage, report to the police, can wide application in burying ground metal oil gas pipeline security detection area.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of signal transmission according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings. It is to be understood, however, that the drawings are provided for a better understanding of the invention and that they are not to be interpreted as limiting the invention.
As shown in fig. 1 and fig. 2, the utility model provides an supplementary intelligent current drainage device who exchanges stray current of pipeline time acoustic wave monitoring includes pipeline infrasonic wave monitoring system 1, record storage module 2, exchanges and measures transmission module 3, central processing unit 4 and current drainage control module 5, and pipeline infrasonic wave monitoring system 1 is the monitoring system that prior art disclosed, and concrete structure does not do here and does not do more and describe.
The pipeline infrasonic wave monitoring system 1 is used for monitoring infrasonic wave monitoring data of a pipeline in real time and sending the infrasonic wave monitoring data to the central processing unit 4. The recording and storing module 2 is used for storing infrasonic wave historical monitoring data of the pipeline. The alternating current measurement transmission module 3 is used for acquiring a measured value of the pipeline stray current in real time and sending the measured value to the central processing unit 4. The central processing unit 4 is used for judging the time and the degree of the pipeline interfered by the stray current (when the alternating current density (A/m) is adopted) according to the infrasonic wave monitoring data monitored in real time and the infrasonic wave historical monitoring data2) When the frequency is less than 30, the alternating current interference degree is weak; when the alternating current density (A/m)2) When the frequency is 30-100, the alternating current interference degree is middle; when the alternating current density (A/m)2) When the voltage is more than 100, the alternating current interference degree is strong); the central processing unit 4 is further configured to analyze and process the measured value of the pipeline stray current, the real-time monitored infrasonic wave monitoring data, and the infrasonic wave historical monitoring data to obtain an analysis result (the analysis result indicates whether the measured value of the pipeline stray current reaches a preset drainage threshold), and send the analysis result to the recording storage module 2 and the drainage control module 5, and the recording storage module 2 stores the analysis result. And the drainage control module 5 is used for accurately controlling the field drainage device 6 to drain according to an analysis result, so that intelligent drainage operation on the pipeline is realized.
In a preferred embodiment, the intelligent drainage device further comprises an alarm module 7, wherein the alarm module 7 is used for giving an alarm according to the alarm signal sent by the alternating current measurement transmission module 3 and sending an early warning signal to the central processing unit 4, so that the central processing unit 4 can eliminate interference by adopting other effective means according to the early warning signal.
In a preferred embodiment, the ac measurement transmission module 3 includes a GPS (global positioning system) and/or a big dipper dual-positioning unit, a stray current measurement unit, and a potential determination unit, and both the GPS and the big dipper dual-positioning unit are used to obtain the position of the pipe interfered by the stray current, so as to accurately measure the stray current. The stray current measuring unit is used for acquiring the measured value of the pipeline stray current in real time according to the position of the pipeline interfered by the stray current. The electric potential judging unit is used for judging whether the electric potential of the pipeline is normal (namely whether the measured value of the pipeline stray current exceeds a preset regulation threshold value) according to the measured value of the pipeline stray current and the preset regulation threshold value of the central processing unit 4, and if the electric potential of the pipeline is not normal, an alarm signal is sent to the alarm module 7.
In a preferred embodiment, a parameter setting unit, a stray current interference degree determining unit and an analysis processing unit are arranged in the central processing unit 4. The parameter setting unit is used for presetting an adjusting threshold value and a drainage threshold value of the pipeline stray current according to the infrasonic wave monitoring data and the infrasonic wave historical monitoring data monitored in real time, sending the adjusting threshold value to the alternating current measurement transmission module 3, and sending the drainage threshold value to the analysis processing unit. The stray current interference degree judging unit is used for judging the time and degree of the pipeline interfered by the stray current according to the real-time monitored infrasonic wave monitoring data and the infrasonic wave historical monitoring data. The analysis processing unit is used for obtaining an analysis result according to a preset drainage threshold value and a measured value of the pipeline stray current by adopting a neural network data coupling analysis method, and sending the analysis result to the drainage control module 5.
The utility model discloses a pipeline infrasonic wave monitoring auxiliary alternating current stray current's intelligent current drainage device's application method is explained in detail through specific embodiment below:
1) the pipeline infrasonic wave monitoring system 1 monitors infrasonic wave monitoring data of the pipeline in real time and sends the infrasonic wave monitoring data to the central processing unit 4.
2) And the central processing unit 4 judges the time and the degree of the interference of the pipeline by the stray current according to the infrasonic wave monitoring data monitored in real time and the historical pipeline infrasonic wave monitoring data recorded in the storage module 2.
3) The alternating current measurement transmission module 3 measures the stray current of the pipeline in real time and sends the measured value of the pipeline stray current to the central processing unit 4.
4) The central processing unit 4 presets a drainage threshold value and an adjustment threshold value of the pipeline stray current according to the infrasonic wave monitoring data and the infrasonic wave historical monitoring data monitored in real time.
5) The central processing unit 4 obtains an analysis result according to the drainage threshold value and the measured value of the pipeline stray current, and sends the analysis result to the recording storage module 2 and the drainage control module 5.
6) When the analysis result is that the measured value of the pipeline stray current reaches the preset drainage threshold value, the drainage control module 5 accurately controls the on-site drainage device 6 to start to drain, and intelligent drainage operation on the pipeline is achieved.
7) When the measured value of the pipeline stray current exceeds a preset adjusting threshold value and the pipeline fails to recover the cathodic protection potential before interference, the alternating current measurement transmission module 3 sends an alarm signal to the alarm module 7, the alarm module 7 gives an alarm and sends an early warning signal to the central processing unit 4, so that the central processing unit 4 can adopt other effective means to eliminate the interference according to the early warning signal.
Above-mentioned each embodiment only is used for explaining the utility model discloses, wherein structure, connected mode and the preparation technology etc. of each part all can change to some extent, all are in the utility model discloses equal transform and improvement of going on technical scheme's the basis all should not exclude outside the protection scope of the utility model.
Claims (3)
1. An intelligent drainage device for assisting alternating-current stray current in pipeline sub-acoustic monitoring is characterized by comprising a pipeline sub-acoustic monitoring system, a recording and storing module, an alternating-current measurement and transmission module, a central processing unit and a drainage control module;
the central processing unit is respectively connected with the pipeline infrasonic wave monitoring system, the recording storage module, the alternating current measurement transmission module and the drainage control module, and the drainage control module is also connected with a field drainage device; the pipeline infrasonic wave monitoring system is used for monitoring infrasonic wave monitoring data of a pipeline in real time; the alternating current measurement transmission module is used for acquiring a measured value of the pipeline stray current in real time.
2. The intelligent drainage device for auxiliary alternating-current stray current based on pipe pass acoustic monitoring as claimed in claim 1, further comprising an alarm module, wherein the alarm module is respectively connected with the alternating-current measurement transmission module and the central processing unit.
3. The intelligent drainage device for pipe pass acoustic wave monitoring auxiliary alternating current stray current as claimed in claim 2, wherein the alternating current measurement transmission module comprises a GPS and/or beidou dual-positioning unit, a stray current measurement unit and a potential judgment unit, the stray current measurement unit is respectively connected with the GPS and/or beidou dual-positioning unit and the potential judgment unit, and the potential judgment unit is further connected with the alarm module.
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| CN201920307323.3U CN210219339U (en) | 2019-03-12 | 2019-03-12 | Intelligent drainage device for assisting alternating-current stray current in pipe pass acoustic monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780450A (en) * | 2019-03-12 | 2019-05-21 | 中海石油气电集团有限责任公司 | The Intelligent electric drainage device and method of pipeline monitored by infrasonic wave supplementary AC stray electrical current |
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2019
- 2019-03-12 CN CN201920307323.3U patent/CN210219339U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780450A (en) * | 2019-03-12 | 2019-05-21 | 中海石油气电集团有限责任公司 | The Intelligent electric drainage device and method of pipeline monitored by infrasonic wave supplementary AC stray electrical current |
| CN109780450B (en) * | 2019-03-12 | 2024-01-30 | 中海石油气电集团有限责任公司 | Intelligent drainage device and method for auxiliary alternating current stray current through pipeline infrasonic wave monitoring |
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