A method and system for cathodic protection of buried pipelines based on soil parameters

Abstract

The present invention relates to a buried pipeline cathodic protection method and system based on soil parameters, belonging to the technical field of pipeline corrosion protection. The method includes: obtaining pipeline material data, industry reference criteria, and initial soil environment data, and the intelligent cathodic protection platform controls the constant potential instrument to output the protection potential according to the pipeline material data, the initial soil environment data, and the industry reference criteria; obtaining the measured stray current interference data, the measured power-off potential data, and the measured soil environment data, and transmitting the data to the intelligent cathodic protection platform; the intelligent cathodic protection platform obtains the comparison result through the comparison algorithm according to the stray current interference data, and calculates the effectiveness result through the effectiveness detection method according to the measured soil environment data, the pipeline material data, and the measured power-off potential data; the intelligent cathodic protection platform dynamically adjusts the protection potential according to the effectiveness result and the industry reference criteria, and selects the drainage method according to the comparison result. The buried pipeline cathodic protection potential monitoring and dynamic adjustment are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline corrosion protection, and in particular relates to a buried pipeline cathodic protection method and system based on soil parameters. Background Art

[0002] As an important facility for transporting energy and resources, buried pipelines play a key role in a variety of industrial fields. However, due to the complexity of the underground environment, pipelines are often at risk of corrosion. Cathodic protection is an effective corrosion mitigation technology that applies a direct current to the surface of the pipeline, making it a cathode, thereby inhibiting the corrosion process.

[0003] Current problems:

[0004] Traditional cathodic protection monitoring methods mainly rely on manual on-site testing, which has problems such as low monitoring frequency, untimely data collection, and low management efficiency. However, the existing intelligent system for underground pipeline cathodic protection can intelligently measure the cathodic protection parameters of the pipeline, such as power-on potential, power-off potential, natural potential, and stray current interference data. However, the effectiveness of cathodic protection of buried pipelines is greatly affected by soil environmental factors. Under different temperatures, humidity, pH values, and soil resistivity, the protection potential of the pipeline needs to be adjusted. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a buried pipeline cathodic protection method and system based on soil parameters.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] S1: Obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, transmit the pipeline material data, the industry reference standards and the initial soil environment data to the intelligent Yinbao platform, the intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument;

[0008] The industry reference criteria are the natural potential reference values, minimum protection potential values ​​and limiting critical potential values ​​of different pipeline materials under different soil environmental conditions. The protection potential value can be determined according to the minimum protection potential and limiting critical potential. The relationship between the protection potential, the minimum potential and the limiting critical potential is:

[0009] ,

[0010] in, E 1is the minimum protection potential, E 2 For protection potential, E 3 To limit the critical potential;

[0011] S2: obtaining measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmitting the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform;

[0012] S3: selecting a validity detection method according to the measured stray current interference data, the intelligent indirect protection platform obtaining a comparison result according to the stray current interference data through a comparison algorithm; the intelligent indirect protection platform obtaining a validity result through calculation according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method;

[0013] S4: The intelligent cathodic protection platform generates an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and selects a drainage method according to the comparison result;

[0014] The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value;

[0015] The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is:

[0016] ,

[0017] in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter;

[0018] The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result;

[0019] The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

[0020] Specifically, the stray current interference data is divided into DC stray current interference data and AC stray current interference data, wherein the DC stray current interference sources include DC rail transit systems, high-voltage DC output power systems, DC telephone cable networks, DC electrolysis devices, electric welding machines and other structure cathodic protection systems, and the AC stray current interference sources include high-voltage AC output power lines, substations and AC electrified railways, etc.

[0021] Specifically, the interference degree calculation method of the AC stray current interference data is to calculate the AC current density value, and obtain the interference degree by comparing the AC current density value with a preset comparison threshold, wherein the AC current density value calculation formula is:

[0022] , J ac is the AC current density value, V is the average value of the effective value of the AC interference voltage, p is the soil resistivity at the test point, d is the damage point diameter.

[0023] A buried pipeline cathodic protection system based on soil parameters, comprising an initial data acquisition module, a measured data acquisition module, an analysis module and an adjustment module;

[0024] The initial data acquisition module is used to obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, and transmit the pipeline material data, the industry reference standards, and the initial soil environment data to the intelligent Yinbao platform. The intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument;

[0025] The industry reference criteria are the natural potential reference values, minimum protection potential values ​​and limiting critical potential values ​​of different pipeline materials under different soil environmental conditions. The protection potential value can be determined according to the minimum protection potential and limiting critical potential. The relationship between the protection potential, the minimum potential and the limiting critical potential is:

[0026] ,

[0027] in, E 1 is the minimum protection potential, E 2 For protection potential, E 3 To limit the critical potential;

[0028] The measured data acquisition module is used to obtain measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmit the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform;

[0029] The analysis module is used to select a validity detection method according to the measured stray current interference data, and the intelligent cathodic protection platform obtains a comparison result according to the stray current interference data through a comparison algorithm; the intelligent cathodic protection platform calculates the validity result according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method;

[0030] The adjustment module is used for the intelligent cathodic protection platform to generate an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and select a drainage method according to the comparison result;

[0031] The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value;

[0032] The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is:

[0033] ,

[0034] in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter;

[0035] The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result;

[0036] The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

[0037] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned soil parameter-based buried pipeline cathodic protection method when executing the program.

[0038] A storage medium containing computer executable instructions, characterized in that the computer executable instructions are used to execute the above-mentioned soil parameter-based buried pipeline cathodic protection method when executed by a computer processor.

[0039] The beneficial effects of the present invention are:

[0040] (1) By adding a soil environment data collection probe to the collection module of the smart pile, the soil environment data is obtained through the collection module of the smart pile, which solves the defect that the existing intelligent system for underground pipeline cathodic protection cannot collect soil environment data.

[0041] (2) Intelligent piles are used to collect data at fixed times and locations, solving the problem of traditional data collection methods that rely on manual labor and increase labor and time costs.

[0042] (3) The intelligent cathodic protection platform analyzes the measured soil environment data, pipeline material data, industry reference standards, and measured power-off potential data to obtain the effectiveness of the cathodic protection of the buried pipeline, thereby generating an adaptive control signal to dynamically adjust the protection potential output by the constant potentiostat. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0044] Figure 1 The present invention is a schematic flow chart of a method for cathode protection of buried pipelines based on soil parameters. DETAILED DESCRIPTION

[0045] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0046] See also Figure 1 , a method and system for cathodic protection of buried pipelines based on soil parameters;

[0047] S1: Obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, transmit the pipeline material data, the industry reference standards and the initial soil environment data to the intelligent Yinbao platform, the intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument;

[0048] The industry reference criteria are the natural potential reference values, minimum protection potential values ​​and limiting critical potential values ​​of different pipeline materials under different soil environmental conditions. The protection potential value can be determined according to the minimum protection potential and limiting critical potential. The relationship between the protection potential, the minimum potential and the limiting critical potential is:

[0049] ,

[0050] in,E 1 is the minimum protection potential, E 2 For protection potential, E 3 To limit the critical potential;

[0051] S2: obtaining measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmitting the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform;

[0052] S3: selecting a validity detection method according to the measured stray current interference data, the intelligent indirect protection platform obtaining a comparison result according to the stray current interference data through a comparison algorithm; the intelligent indirect protection platform obtaining a validity result through calculation according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method;

[0053] S4: The intelligent cathodic protection platform generates an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and selects a drainage method according to the comparison result;

[0054] The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value;

[0055] The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is:

[0056] ,

[0057] in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter;

[0058] The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result;

[0059] The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

[0060] In this embodiment, the intelligent cathodic protection platform first determines whether the protection potential needs to be adjusted according to the effectiveness result, and then obtains the minimum potential and the limiting critical potential under the current pipeline material and soil environment through internal multi-layer nested judgment statements according to the industry reference criteria, and then generates an adaptive control signal according to the minimum potential and the limiting critical potential to dynamically adjust the constant potential instrument;

[0061] The drainage methods include adding a solid decoupler to the pipeline and grounding drainage;

[0062] The probe is a copper sulfate electrode, and the protection criteria will vary depending on the pipeline material and soil environment;

[0063] Whether the effectiveness of cathodic protection meets the requirements of the specification is judged based on the polarization potential. In order to obtain the polarization potential value of the pipeline, the cathodic protection potential is instantaneously interrupted. At this time, the potential reading does not contain IR drop. The electrolyte potential of the structure measured at the moment of power failure is called the instantaneous power-off potential, and its value is equal to the polarization potential of the pipeline. Therefore, the power-off potential is the true cathodic protection potential. By judging the power-off potential, it can be known whether the protection potential needs to be adjusted.

[0064] Specifically, the stray current interference data is divided into DC stray current interference data and AC stray current interference data, wherein the DC stray current interference sources include DC rail transit systems, high-voltage DC output power systems, DC telephone cable networks, DC electrolysis devices, electric welding machines and other structure cathodic protection systems, and the AC stray current interference sources include high-voltage AC output power lines, substations and AC electrified railways, etc.

[0065] Specifically, the interference degree calculation method of the AC stray current interference data is to calculate the AC current density value, and obtain the interference degree by comparing the AC current density value with a preset comparison threshold, wherein the AC current density value calculation formula is: , J ac is the AC current density value, V is the average value of the effective value of the AC interference voltage, p is the soil resistivity at the test point, d is the damage point diameter.

[0066] A buried pipeline cathodic protection system based on soil parameters, comprising an initial data acquisition module, a measured data acquisition module, an analysis module and an adjustment module;

[0067] The initial data acquisition module is used to obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, and transmit the pipeline material data, the industry reference standards, and the initial soil environment data to the intelligent Yinbao platform. The intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument;

[0068] The industry reference criteria are the natural potential reference values, minimum protection potential values ​​and limiting critical potential values ​​of different pipeline materials under different soil environmental conditions. The protection potential value can be determined according to the minimum protection potential and limiting critical potential. The relationship between the protection potential, the minimum potential and the limiting critical potential is:

[0069] ,

[0070] in, E 1 is the minimum protection potential, E 2 For protection potential, E 3 To limit the critical potential;

[0071] The measured data acquisition module is used to obtain measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmit the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform;

[0072] The analysis module is used to select a validity detection method according to the measured stray current interference data, and the intelligent cathodic protection platform obtains a comparison result according to the stray current interference data through a comparison algorithm; the intelligent cathodic protection platform calculates the validity result according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method;

[0073] The adjustment module is used for the intelligent cathodic protection platform to generate an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and select a drainage method according to the comparison result;

[0074] The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value;

[0075] The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is:

[0076] ,

[0077] in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter;

[0078] The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result;

[0079] The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

[0080] In this embodiment, a soil environment data collection probe is added to the collection module of the smart pile, and soil environment data is obtained through the collection module of the smart pile, thereby solving the defect that the existing intelligent system for cathodic protection of underground pipelines cannot collect soil environment data; the smart pile is used to realize timed and fixed-point data collection, thereby solving the defect of the traditional method of relying on manual data collection, which increases labor costs and time costs; the intelligent cathodic protection platform analyzes the measured soil environment data, pipeline material data, industry reference standards, and measured power-off potential data to obtain the effectiveness of the cathodic protection of the buried pipeline, thereby generating an adaptive control signal to dynamically adjust the protection potential output by the constant potentiostat.

[0081] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned soil parameter-based buried pipeline cathodic protection method when executing the program.

[0082] A storage medium containing computer executable instructions, characterized in that the computer executable instructions are used to execute the above-mentioned soil parameter-based buried pipeline cathodic protection method when executed by a computer processor.

[0083] The computer storage medium of the embodiment of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0084] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0085] The program code included on the computer readable medium can be transmitted with any appropriate medium, including but not limited to wireless, electric wire, optical cable, RF, etc., or any suitable combination of the above. The computer program code for performing the operation of the present invention can be written in one or more programming languages ​​or their combinations, and the programming language includes object-oriented programming languages-such as Java, Smalltalk, C++, and also includes conventional procedural programming languages-such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0086] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A buried pipeline cathodic protection method based on soil parameters, characterized in that: include: S1: Obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, transmit the pipeline material data, the industry reference standards and the initial soil environment data to the intelligent Yinbao platform, the intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument; The industry reference criteria are the natural potential reference value, minimum protection potential value and limiting critical potential value of different pipeline materials under different soil environmental conditions. The protection potential value is determined according to the minimum protection potential value and the limiting critical potential value. The relationship between the protection potential value, the minimum protection potential value and the limiting critical potential value is: , in, E 1 is the minimum protection potential value, E 2 is the protection potential value, E 3 To limit the critical potential value; S2: obtaining measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmitting the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform; S3: selecting a validity detection method according to the measured stray current interference data, the intelligent indirect protection platform obtaining a comparison result according to the stray current interference data through a comparison algorithm; the intelligent indirect protection platform obtaining a validity result through calculation according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method; S4: The intelligent cathodic protection platform generates an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and selects a drainage method according to the comparison result; The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value; The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is: , in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter; The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result; The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

2. The method for cathodic protection of buried pipelines based on soil parameters according to claim 1, characterized in that: The stray current interference data is divided into DC stray current interference data and AC stray current interference data, wherein the DC stray current interference sources include DC rail transit systems, high-voltage DC output power systems, DC telephone cable networks, DC electrolysis devices, electric welding machines and other structure cathodic protection systems, and the AC stray current interference sources include high-voltage AC output power lines, substations and AC electrified railways.

3. The buried pipeline cathodic protection method based on soil parameters according to claim 2 is characterized in that: The interference degree calculation method of the AC stray current interference data is to calculate the AC current density value, and obtain the interference degree by comparing the AC current density value with a preset comparison threshold, wherein the AC current density value calculation formula is: , J ac is the AC current density value, V is the average value of the effective value of the AC interference voltage, p is the soil resistivity at the test point, d is the damage point diameter.

4. A buried pipeline cathodic protection system based on soil parameters, used to implement the method as claimed in any one of claims 1 to 3, characterized in that: It includes initial data acquisition module, measured data acquisition module, analysis module and adjustment module; The initial data acquisition module is used to obtain pipeline material data and industry reference standards, obtain initial soil environment data through smart pile measurement, and transmit the pipeline material data, the industry reference standards, and the initial soil environment data to the intelligent Yinbao platform. The intelligent Yinbao platform obtains the output protection potential value of the constant potential instrument according to the pipeline material data, the initial soil environment data and the industry reference standards, and generates an adaptive signal according to the output protection potential value to control the output protection potential of the constant potential instrument; The industry reference criteria are the natural potential reference value, minimum protection potential value and limiting critical potential value of different pipeline materials under different soil environmental conditions. The protection potential value is determined according to the minimum protection potential value and the limiting critical potential value. The relationship between the protection potential value, the minimum protection potential value and the limiting critical potential value is: , in, E 1 is the minimum protection potential value, E 2 is the protection potential value, E 3 To limit the critical potential value; The measured data acquisition module is used to obtain measured stray current interference data, measured power-off potential data and measured soil environment data through the smart pile, and transmit the measured stray current interference data, measured power-off potential data and measured soil environment data to the smart cathodic protection platform; The analysis module is used to select a validity detection method according to the measured stray current interference data, and the intelligent cathodic protection platform obtains a comparison result according to the stray current interference data through a comparison algorithm; the intelligent cathodic protection platform calculates the validity result according to the measured soil environment data, the pipeline material data and the measured power-off potential data through the validity detection method; The adjustment module is used for the intelligent cathodic protection platform to generate an adaptive control signal according to the effectiveness result and the industry reference standard to control the constant potential instrument to dynamically adjust the protection potential, and select a drainage method according to the comparison result; The soil environment data include soil temperature, soil moisture, soil resistivity, and soil pH value; The soil resistivity test method is to arrange the four electrodes of the built-in measuring instrument of the smart pile in a straight line with equal spacing values, place the electrodes at a depth greater than one twentieth of the equal spacing value, and calculate the soil resistivity according to the equal spacing value using a resistivity calculation formula, and the resistivity calculation formula is: , in, p is the soil resistivity, a are equally spaced values, R Display value of ground resistance meter; The effectiveness detection method includes a close-interval detection method and a test piece method. When there is strong stray current interference in the test pipe section, the close-interval detection method will not be applicable and the test piece method will be selected. The close-interval detection method is to start from the smart pile, move the probe rod one point 1-2 meters along the surface of the pipeline top, collect and record and store a group of power-on potentials and a group of power-off potentials until reaching the smart pile in front, and use GPS to measure the distance along the pipeline where the probe rod is placed. The power-on potential, the power-off potential and the distance constitute CIPS data transmitted to the intelligent Yin-Yang protection platform. The intelligent Yin-Yang protection platform removes erroneous data from the CIPS data to obtain clean CIPS data, and plots the clean CIPS data into an analysis curve in chronological order. The protection criteria are selected according to the pipeline material data and the measured soil environment data, and the power-off potential curve in the analysis curve is analyzed according to the protection criteria to obtain the effectiveness result; The test piece method is to use a test piece to simulate the damaged point of the pipeline anti-corrosion layer, measure the power-off potential of the test piece, plot the power-off potential into a power-off potential curve, select a protection criterion based on the pipeline material data and the measured soil environment data, and analyze the power-off potential curve in the analysis curve according to the protection criterion to obtain the effectiveness result.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the buried pipeline cathodic protection method based on soil parameters as described in any one of claims 1-3 is implemented.

6. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the buried pipeline cathodic protection method based on soil parameters as described in any one of claims 1 to 3 when executed by a computer processor.

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