CN116398824A - Buried pipeline micro-leakage monitoring and early warning system and early warning method - Google Patents
Buried pipeline micro-leakage monitoring and early warning system and early warning method Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 39
- 238000004891 communication Methods 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims description 36
- 230000008859 change Effects 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 9
- 238000013178 mathematical model Methods 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 claims description 5
- 238000003745 diagnosis Methods 0.000 claims description 4
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- 229910052729 chemical element Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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- 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
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention belongs to the technical field of pipeline leakage monitoring, and particularly relates to a buried pipeline micro-leakage monitoring and early warning system and a warning method. The system comprises a sensor detection module, a chip information collection module, a satellite communication module, a server, a real-time monitoring terminal, a power supply module and an alarm module. The method comprises the steps that a plurality of sensors are arranged nearby an underground pipeline for measurement, measurement data are collected and transmitted to a server through a chip information collection module and a satellite communication module, the server calculates and judges whether leakage accidents occur in the underground pipeline or not, positions leakage points rapidly and determines a leakage range, and then a processing result is transmitted to a real-time monitoring terminal module; when the processing result exceeds the early warning value, the system automatically alarms on site and remotely, and the real-time monitoring terminal module automatically sends the processing result to related personnel to remind the personnel of timely processing the abnormal condition of the pipeline, eliminate potential safety hazards and ensure the transmission safety of the buried pipeline.
Description
Technical Field
The invention belongs to the technical field of pipeline leakage monitoring, and particularly relates to a buried pipeline micro-leakage monitoring and early warning system and a warning method.
Background
The energy source is the pulse of industrial production, the economic development also needs the support of the energy source, and the energy source distribution and the energy source consumption area of China have contradiction. In order to solve the problem of cross-region allocation of energy resources, the transportation mode of energy sources becomes particularly important. The rapid construction and development of the infrastructure greatly improves the transportation efficiency of energy resources and further accelerates the sustainable development of the economy of China. In the last sixty years, the buried pipe network in China has continuously perfected passage, and large-scale pipeline networks which cover the whole country and are communicated overseas are gradually formed. At present, the transportation mode of energy is mainly pipeline transportation, the pipeline transportation line of the whole world reaches 250 ten thousand kilometers, and the transportation mode of energy is mainly railway transportation.
While pipeline transportation is rapidly evolving, there is also a potential risk of leakage. Serious pipeline leakage accidents occur at home and abroad, and serious negative effects are caused to social economy and life of people. Accurate, real-time, sensitive monitoring of pipeline leakage becomes particularly important. Although the pipeline has certain resistance to severe working environments, the pipeline is aged, corroded, worn and destroyed by geological disasters over time, so that the pipeline is extremely prone to leakage events. The damage caused by the leakage of the pipeline is extremely large, and if the leakage point cannot be plugged timely, a large amount of energy resources are lost and wasted, so that serious economic loss is caused. Meanwhile, a large amount of petroleum leakage can cause environmental pollution to the environment at the leakage point, so that the ecological environment is irreversibly damaged. Therefore, the monitoring of the pipeline safety is enhanced while the transportation pipeline is built under great force, so that the safe transportation of energy resources can be ensured, and the pipeline transportation network works efficiently and stably.
Disclosure of Invention
The invention aims to solve the technical problem of providing a buried pipeline micro-leakage monitoring and early warning system and a buried pipeline micro-leakage monitoring and early warning method, so that leakage points and leakage ranges can be determined efficiently and accurately, targeted treatment and repair can be performed efficiently in time, and time delay and resource waste can be reduced. The adopted technical means are as follows:
a micro-leakage monitoring and early warning system for buried pipelines comprises a sensor detection module, a chip information collection module, a satellite communication module, a server, a real-time monitoring terminal, a power supply module and an alarm module;
the sensor detection module comprises a plurality of sensors, the sensors are attached to the periphery of an underground pipeline to be arranged, and then the sensors are used for detecting the surrounding soil and detecting the change condition of the soil of the pipeline accessory in real time;
the chip information collection module comprises a plurality of chips, data of soil change conditions near the buried pipeline are recorded and collected in real time through the chips, and then the collected data are transmitted to the satellite communication module;
the satellite communication module adopts a day-start satellite system and is used for sending the real-time data transmitted by the chip information collecting module to a server for processing;
the server is used for receiving the real-time data sent by the satellite communication module, judging whether the pipeline leaks or not by comparing the data and calculating the variation, calculating a specific leakage position and a leakage range, and sending a processing result to the real-time monitoring terminal module; meanwhile, once the processing result exceeds the early warning value, the system automatically alarms on site and remotely;
the real-time monitoring terminal module receives the data processing result of the server, monitors the whole system in real time, and automatically sends the processing result to related personnel when the processing result exceeds the early warning value;
the power supply module provides power for the sensor detection module, the chip information collection module and the satellite communication module.
Preferably, the power supply module is powered by a 12-24v battery.
Preferably, the sensor comprises a housing, probes and data lines, one sensor being placed every 10 meters apart and placed at the bottom of the pipe, close to or in contact with the pipe.
Preferably, each sensor is connected with a chip through a data line, the chip is arranged on the inner side wall of the sensor shell, and monitoring data of the sensor on surrounding soil are collected at any time.
Preferably, a cavity is arranged in the probe, and any sensing cable for measuring resistivity, chemical substance concentration and chemical element is placed in the cavity.
A buried pipeline micro-leakage monitoring and early warning method adopts a buried pipeline micro-leakage monitoring and early warning system, and the specific steps adopted include:
step one: acquiring data of the change condition of the sensitivity parameters of the target soil according to different energy sources transported by the buried pipeline, and collecting real-time data;
step two: based on the obtained measured values of the parameters at each moment and a reference soil pollution grading index system, building different soil property related data models, calculating auxiliary leakage parameters, and leading the mathematical models and the auxiliary leakage parameters into a server of the buried pipeline micro leakage monitoring and early warning system in advance;
step three: attaching a plurality of sensors to the vicinity of an underground pipeline for arrangement, extending along the direction of the underground pipeline, placing one sensor at intervals of 10 meters, and placing the sensors at the bottom of the pipeline to be close to or in contact with the pipeline;
step four: detecting the resistivity of surrounding soil by using a sensor, collecting real-time detection data of a sensor detection module by using a chip information collection module, and transmitting the data to a satellite communication module;
step five: the resistivity collected by the chips is sent to a server through a satellite communication module, whether leakage accidents occur in an underground pipeline or not is calculated and judged through the server, the leakage points are rapidly positioned, the leakage range is determined, then a processing result is transmitted to a real-time monitoring terminal module, and related personnel are automatically notified when the processing result exceeds an early warning value;
step six: the related personnel determine the leakage degree of the pipeline section to be detected according to the leakage points and the leakage range;
step seven: and scheduling the faults by combining the environmental conditions near the leakage points.
Preferably, the real-time monitoring terminal module displays the processing result in a webpage form; the real-time monitoring terminal module is used for carrying out function customization according to the field use environment and the requirements, and further comprises a data query, fault query, alarm query, historical data statistics, alarm and fault reminding and monitoring function module.
Preferably, the real-time monitoring terminal module automatically sends the processing result to related personnel in a short message, acousto-optic or electronic mail mode by utilizing the functions of alarming and fault reminding.
Preferably, the monitoring and monitoring functional module can intuitively display the whole field summarization through a data trend graph, simultaneously receive real-time data, network states and alarm information of each server, and can automatically and intelligently judge equipment states and alarm levels.
Preferably, the monitoring function module can also monitor the states of equipment high report, low report, communication fault, network fault, communication overtime, unconnected, preheating and calibration, and provides reliable basis for fault cause diagnosis and investigation.
Compared with the prior art, the invention has the following advantages:
the invention provides a micro leakage monitoring and early warning system for buried pipelines, and provides a warning method, wherein a plurality of sensors are arranged near the underground pipelines, a server is used for calculating and judging whether leakage accidents occur in the underground pipelines, positioning leakage points and determining leakage ranges rapidly, processing results are transmitted to a real-time monitoring terminal module, and real-time data are transmitted to a terminal processing module through the real-time monitoring terminal module; when the processing result exceeds the early warning value, the system automatically alarms on site and remotely, and the real-time monitoring terminal module automatically sends the processing result to related personnel in a short message, acousto-optic or electronic mail mode to remind the personnel of timely processing the abnormal condition of the pipeline and eliminate potential safety hazards; meanwhile, the real-time monitoring terminal module can intuitively display the whole field summarization and data trend graphs, monitor network states, communication faults, equipment faults and the like in real time, provide reliable basis for fault cause diagnosis and investigation, and ensure the transmission safety of the buried pipeline. The monitoring and early warning method has high monitoring sensitivity, the sensor can monitor the change of the soil resistivity under the condition of slight leakage, and early warning and treatment can be timely carried out, so that the damage result is prevented from being enlarged.
Drawings
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is a schematic view of a sensor mounting location according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method according to an embodiment of the invention.
In the figure, 1-pipe, 2-sensor.
Detailed Description
The drawings are for illustrative purposes only; it should be understood that the following examples are set forth in order to facilitate the description of the invention and to simplify the description, and thus should not be construed as limiting the invention.
The principles and features of the present invention are described below in connection with the following examples, which are provided to illustrate the invention and are not intended to limit the scope of the invention. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The apparatus and equipment used are conventional products available commercially without identifying the manufacturer. Other technical methods not described use the prior art.
Examples: a buried pipeline micro-leakage monitoring and early warning system is used for monitoring and warning a transportation system of a petroleum buried pipeline network, and early warning and treatment are carried out on monitoring of soil resistivity.
As shown in FIG. 1, the micro leakage monitoring and early warning system for the buried pipeline comprises a sensor detection module, a chip information collection module, a satellite communication module, a server, a real-time monitoring terminal, a power supply module and an alarm module.
As shown in fig. 2, the sensor detection module includes a plurality of sensors, the sensors 2 are attached around the underground pipeline for arrangement, and then the sensing cable for measuring the resistivity of the sensor 2 is used for detecting the resistivity change of the soil on the oil and gas pipeline in real time. The sensor 2 comprises a shell, a probe and a data wire, wherein an induction cable for measuring resistivity measurement is arranged in an inner cavity of the probe. The sensors 2 are placed one at intervals of 10 meters and are placed at the bottom of the pipeline, close to or in contact with the pipeline. The probe and the resistivity measurement sensing cable adopt the prior art, a plurality of detection holes are formed in different positions on the outer circumferential side wall of the probe, the sensing cable which is used for resistivity measurement and is adaptive in size is installed in the cavity inside the probe, the sensing cable can detect the surrounding soil resistivity through the detection holes, and the sensing cable is connected with the chip.
Because oil is immersed in soil when oil leakage occurs, the resistivity of the soil can be obviously changed along with the increase of alkane concentration, and the change trend of the resistivity of the soil reflects the change of the leakage state of an oil pipeline, a sensor is arranged at a position close to or in contact with the bottom of the pipeline.
The chip information collection module records and collects the change condition of the resistivity of soil on the buried pipeline in real time through the chip, then transmits collected data to the satellite communication module, the satellite communication module comprises a plurality of chips, each sensor is connected with one chip through a data line, the chip is arranged on the inner side wall of the sensor shell, and the information of the sensors for monitoring the resistivity of surrounding soil is collected at any time. Each chip has a different marking code for positioning.
The satellite communication module adopts a day-start satellite system and is used for sending the real-time data transmitted by the chip information collecting module to a server for processing; a real-time monitoring terminal;
the server is used for receiving the real-time data sent by the satellite communication module, calculating the variation to judge whether the pipeline leaks or not through the comparison data, calculating the specific leakage position and the leakage range, and sending the processing result to the real-time monitoring terminal module; meanwhile, once the processing result exceeds the early warning value, the system automatically alarms on site and remotely;
the real-time monitoring terminal module receives the data processing result of the server, monitors the whole system in real time, and automatically sends the processing result to related personnel when the processing result exceeds the early warning value;
the power supply module provides power for the sensor detection module, the chip information collection module and the satellite communication module.
The power supply module is powered by a 24v battery.
As shown in fig. 3, the method for monitoring micro leakage and early warning of buried pipelines provided by the invention adopts a system for monitoring micro leakage and early warning of buried pipelines, determines whether a leakage event occurs in a pipeline section by setting the numerical fluctuation amplitude of the soil resistivity of the pipeline section in a first period, acquires the change condition of the soil resistivity when the fluctuation amplitude of the resistivity is determined to be overlarge, further acquires auxiliary leakage parameters based on a leakage auxiliary monitoring mode corresponding to the resistivity, and finally further accurately determines based on a reference soil pollution grading index system. The specific steps adopted include:
step one: and acquiring resistivity measurement values of the target soil resistivity at each moment in the first period of leakage occurrence, and collecting real-time data.
Step two: establishing a mathematical model of the relation between the oil content of the soil and the resistivity based on the acquired measured value of the resistivity at each moment and a reference soil pollution grading index system; comprising the following steps:
uncontaminated coarse sand, y= 8.5249x -1.219 The correlation coefficient is 0.9982;
5% oily grit, y= 15.203x -1.048 The correlation coefficient is 0.9976;
10% oily grit, y= 26.697x -0.882 The correlation coefficient is 0.9968;
uncontaminated fine sand, y=11.27 x -1.073 The correlation coefficient is 0.9916;
5% oiled sand, y= 10.311x -1.061 The correlation coefficient is 0.9969;
10% oiled fine sand, y= 6.4972x -1.1 The correlation coefficient is 0.9943;
uncontaminated silty clay, y= 7.4879x -1.187 The correlation coefficient is 0.9929;
5% oily silty clay, y= 5.7495x -1.24 The correlation coefficient is 0.9936;
10% oily silty clay, y= 3.2325x -1.405 The correlation coefficient is 0.9878;
wherein x represents the water content of the soil, and y represents the resistivity. And calculating the change of the resistivity of different soil along with the water content to obtain auxiliary leakage parameters, and importing a mathematical model and the auxiliary leakage parameters into a server of the micro-leakage monitoring and early warning system of the oil pipeline. Wherein the auxiliary leakage parameters are shown in tables 1-4.
TABLE 1 resistivity of uncontaminated coarse sand with moisture content
| Moisture content | Resistivity omega/m |
| 5％ | 316.3405 |
| 10％ | 148.7947 |
| 15％ | 86.2011 |
| 20％ | 61.50091 |
| 25％ | 46.41909 |
| 30％ | 35.6136 |
TABLE 2 resistivity of contaminated grit with moisture content
TABLE 3 resistivity of uncontaminated fine sand with moisture content
| Moisture content | Resistivity omega/m |
| 5％ | 217.4588 |
| 10％ | 105.0871 |
| 15％ | 63.6728 |
| 20％ | 47.4848 |
| 25％ | 33.44171 |
| 30％ | 25.0914 |
TABLE 4 resistivity of contaminated sand with moisture content
TABLE 5 resistivity of uncontaminated silty clay with moisture content
| Moisture content | Resistivity omega/m |
| 5％ | 198.0332 |
| 10％ | 91.5971 |
| 15％ | 52.2063 |
| 20％ | 27.7894 |
| 25％ | 23.7424 |
| 30％ | 16.3229 |
TABLE 6 resistivity of contaminated silty clay with Water content
Step three: and a plurality of sensors are attached near the underground pipeline, are distributed at intervals of 10 meters, extend along the direction of the underground pipeline all the time, and the chip on each sensor is marked, so that the position range of each chip can be positioned from the real-time monitoring terminal module.
Step four: and detecting the resistivity of surrounding soil by using a cable in the sensor, and collecting real-time detection data of the sensor detection module by the chip information collection module and transmitting the data to the satellite communication module.
Step five: the resistivity collected by the chips is sent to a server through a satellite communication module, whether leakage accidents occur in the underground pipeline or not is calculated and judged through the server (according to the data of the data model and the auxiliary leakage parameter tables 1-6 for calculating and measuring the change of different soil resistivities along with the water content in advance), the leakage points are positioned and the leakage range is determined rapidly (according to the mark of each chip, the positions of the chips can be determined, and then the leakage positions are determined), then the processing result is transmitted to a real-time monitoring terminal module, and when the processing result exceeds an early warning value, an alarm can be given automatically, and related personnel can be notified automatically. The early warning value can be set according to the collected soil resistivity measured value and the actual application value, so that the early warning can be carried out on slight leakage.
Step six: the relevant personnel can further determine the leakage degree of the pipeline section to be detected according to the leakage point and the leakage range. The related personnel can also refer to the soil resistivity and the auxiliary leakage parameter tables 1-6, judge according to different soil properties, and once the numerical range of the measured resistivity falls within a certain soil property range, determine the leakage degree of the pipeline section to be detected.
Step seven: and scheduling the faults by combining the environmental conditions near the leakage points.
As further optimization, the measured information is transmitted through a satellite communication module and a 4G signal, and the real-time monitoring terminal module displays the processing result in a webpage form; the real-time monitoring terminal module is used for carrying out function customization according to the field use environment and requirements, and further comprises a data query module, a fault query module, an alarm query module, a historical data statistics module, an alarm module, a fault reminding module, a monitoring module, an account authority management module and the like.
The real-time monitoring terminal module automatically sends the processing result to related personnel in a short message, acousto-optic or electronic mail mode by utilizing the alarm and fault reminding functions, and meanwhile, a system administrator can perform remote control, parameter setting and other operations on the system.
The monitoring and monitoring functional module can visually and intuitively display the whole field summarization through the data trend graph, simultaneously receive real-time data, network states and alarm information of each server, automatically and intelligently judge equipment states and alarm levels, and inform and remind a user through various alarm effects such as screen shaking, luminescence, sound and the like. When equipment faults or alarms occur, the equipment faults or alarms can be monitored in the system in real time, and the system can monitor the states of equipment high-reporting, low-reporting, communication faults, network faults, communication overtime, unconnected, preheating, calibration and the like, so that reliable basis is provided for fault cause diagnosis and troubleshooting.
The above embodiments are directed to early monitoring and early warning of micro leakage of petroleum pipelines, setting sensitivity parameters according to different energy sources along with transportation of energy source types (for example, energy sources can be crude oil, diesel oil, natural gas, chemical organic substances and the like) of buried pipelines, then establishing a mathematical model of numerical variation and sensitivity parameters penetrating into soil, and/or calculating to obtain auxiliary parameters, so that early warning and treatment are performed through the system. The invention is thus not limited to examples for petroleum pipelines.
Of course, those skilled in the art will appreciate that many variations, modifications, additions, or substitutions are possible, without departing from the scope of the invention as disclosed in the accompanying claims.
Claims (10)
1. The micro leakage monitoring and early warning system for the buried pipeline is characterized by comprising a sensor detection module, a chip information collection module, a satellite communication module, a server, a real-time monitoring terminal, a power supply module and an alarm module;
the sensor detection module comprises a plurality of sensors, the sensors are attached to the periphery of an underground pipeline to be arranged, and then the sensors are used for detecting the surrounding soil and detecting the change condition of the soil of the pipeline accessory in real time;
the chip information collection module comprises a plurality of chips, data of soil change conditions near the buried pipeline are recorded and collected in real time through the chips, and then the collected data are transmitted to the satellite communication module;
the satellite communication module adopts a day-start satellite system and is used for sending the real-time data transmitted by the chip information collecting module to a server for processing;
the server is used for receiving the real-time data sent by the satellite communication module, judging whether the pipeline leaks or not by comparing the data and calculating the variation, calculating a specific leakage position and a leakage range, and sending a processing result to the real-time monitoring terminal module; meanwhile, once the processing result exceeds the early warning value, the system automatically alarms on site and remotely;
the real-time monitoring terminal module receives the data processing result of the server, monitors the whole system in real time, and automatically sends the processing result to related personnel when the processing result exceeds the early warning value;
the power supply module provides power for the sensor detection module, the chip information collection module and the satellite communication module.
2. The system for monitoring and early warning of micro-leakage of buried pipelines according to claim 1, wherein the power supply module is powered by a 12-24v battery.
3. The system of claim 1, wherein the sensor comprises a housing, a probe, and a data line, wherein the sensor is placed at intervals of 10 meters, and is placed at the bottom of the pipeline, and is in proximity to or in contact with the pipeline.
4. The system for monitoring and early warning of micro leakage of buried pipeline according to claim 3, wherein each sensor is connected with a chip through a data line, the chip is installed on the inner side wall of the sensor housing, and monitoring data of the sensor on surrounding soil is collected at any time.
5. The micro-leakage monitoring and early warning system for the buried pipeline according to claim 3, wherein a cavity is arranged in the probe, and any sensing cable for measuring resistivity, chemical substance concentration and chemical elements is placed in the cavity.
6. The method for monitoring micro leakage and early warning of the buried pipeline adopts the system for monitoring micro leakage and early warning of the buried pipeline according to any one of claims 1 to 5, and is characterized by comprising the following specific steps:
step one: acquiring data of the change condition of the sensitivity parameters of the target soil according to different energy sources transported by the buried pipeline, and collecting real-time data;
step two: based on the obtained measured values of the parameters at each moment and a reference soil pollution grading index system, building different soil property related data models, calculating auxiliary leakage parameters, and leading the mathematical models and the auxiliary leakage parameters into a server of the buried pipeline micro leakage monitoring and early warning system in advance;
step three: attaching a plurality of sensors to the vicinity of an underground pipeline for arrangement, extending along the direction of the underground pipeline, placing one sensor at intervals of 10 meters, and placing the sensors at the bottom of the pipeline to be close to or in contact with the pipeline;
step four: detecting the resistivity of surrounding soil by using a sensor, collecting real-time detection data of a sensor detection module by using a chip information collection module, and transmitting the data to a satellite communication module;
step five: the resistivity collected by the chips is sent to a server through a satellite communication module, whether leakage accidents occur in an underground pipeline or not is calculated and judged through the server, the leakage points are rapidly positioned, the leakage range is determined, then a processing result is transmitted to a real-time monitoring terminal module, and related personnel are automatically notified when the processing result exceeds an early warning value;
step six: the related personnel determine the leakage degree of the pipeline section to be detected according to the leakage points and the leakage range;
step seven: and scheduling the faults by combining the environmental conditions near the leakage points.
7. The method for monitoring micro leakage and early warning of buried pipelines according to claim 6, wherein the real-time monitoring terminal module displays the processing result in the form of a web page; the real-time monitoring terminal module is used for carrying out function customization according to the field use environment and the requirements, and further comprises a data query, fault query, alarm query, historical data statistics, alarm and fault reminding and monitoring function module.
8. The method for monitoring micro leakage and early warning of buried pipeline according to claim 7, wherein the real-time monitoring terminal module utilizes alarming and fault reminding functions to automatically send the processing result to related personnel by means of short message, acousto-optic or e-mail.
9. The method for monitoring micro leakage and early warning of buried pipelines according to claim 7, wherein the monitoring and monitoring functional module visually displays the whole field summary through a data trend graph, receives real-time data, network state and warning information of each server, and can automatically and intelligently judge the state and warning level of the equipment.
10. The method for monitoring micro leakage and early warning of buried pipelines according to claim 9, wherein the monitoring and monitoring functional module can monitor the states of high report, low report, communication fault, network fault, communication overtime, unconnected, preheating and calibration of equipment, and provides reliable basis for fault cause diagnosis and investigation.
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| CN202310265889.5A CN116398824A (en) | 2023-03-20 | 2023-03-20 | Buried pipeline micro-leakage monitoring and early warning system and early warning method |
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| CN117072887A (en) * | 2023-08-21 | 2023-11-17 | 四川吉石科技有限公司 | Sewage pipeline monitoring system |
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