Method, internet of things system, and medium for preventing electrochemical corrosion of smart gas pipeline

Patent metadata

Field	Value
Publication number	US-12422107-B2
Application number	US-202318530168-A
Country	US
Kind code	B2
Filing date	Dec 5, 2023
Priority date	Dec 16, 2022
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

The embodiments of the present disclosure provide a method for preventing electrochemical corrosion of a smart gas pipeline. The method may be implemented based on a smart gas pipeline network safety management platform of an Internet of Things system for preventing electrochemical corrosion of a smart gas pipeline. The method may include: determining an electrochemical corrosion degree of a gas pipeline at a second time based on environmental data of the gas pipeline at a first time, wherein the first time is before the second time; obtaining a difference between a thickness of the gas pipeline and the electrochemical corrosion degree at the second time; and determining, based on the electrochemical corrosion degree, a protection scheme of the gas pipeline.

First claim

What is claimed is:

1. A method for assessing electrochemical corrosion of a smart gas pipeline, implemented based on a processor of a smart gas pipeline network safety management platform of an Internet of Things (IoT) system, comprising:
determining an electrochemical corrosion degree of a gas pipeline at a second time by processing environmental data, gas pipeline material of the gas pipeline, an electrochemical corrosion thickness of the gas pipeline at a first time, and point information of each of at least one position of the gas pipeline based on a corrosion thickness prediction model, wherein the electrochemical corrosion degree of the gas pipeline at the second time includes an electrochemical corrosion degree of each of the at least one position of the gas pipeline, and the corrosion thickness prediction model is a machine learning model, wherein the first time is before the second time;
obtaining a difference between a thickness of the gas pipeline and the electrochemical corrosion degree at the second time;
in response to a determination that the difference is smaller than a first threshold, determining a protection scheme of the gas pipeline based on a first scheme;
sending the protection scheme to a smart gas pipeline network maintenance engineering object sub-platform to control a maintenance appliance to perform at least one of a periodic dirt cleaning, coating an outer wall with an anti-oxidation, and anti-corrosion coating, or a gas purification on a position of the gas pipeline with the difference smaller than the first threshold, wherein the smart gas pipeline network maintenance engineering object sub-platform includes a maintenance vehicle, the maintenance appliance and an alarm device; and
in response to a determination that the difference is smaller than a second threshold, determining the protection scheme of the gas pipeline based on a second scheme;
wherein the determining the protection scheme of the gas pipeline based on a second scheme includes:
determining a plurality of candidate site selection schemes of at least one cathode protection station, each of the plurality of candidate site selection schemes comprising a set of site selection coordinates of the at least one cathode protection station;
performing at least one round of iterative updating on the plurality of candidate site selection schemes based on a preset algorithm and evaluating the plurality of candidate site selection schemes after the at least one round of iterative updating using a preset evaluation function to determine a target site selection scheme;
determining a cathode protection scheme based on the target site selection scheme, and determining a protection scheme of the gas pipeline based on the cathode protection scheme and an anode sacrifice protection scheme; and
sending the cathode protection scheme to the smart gas pipeline network maintenance engineering object sub-platform to control the maintenance appliance to install an electric excitation device on the gas pipeline and to control the maintenance appliance and the maintenance vehicle to build a plurality of cathode protection stations for the gas pipeline based on the target site selection scheme;

wherein the corrosion thickness prediction model comprises a potential prediction layer and a corrosion thickness prediction layer; and
wherein the determining an electrochemical corrosion degree of a gas pipeline at a second time by processing environmental data, gas pipeline material of the gas pipeline, an electrochemical corrosion thickness of the gas pipeline at a first time, and point information of each of at least one position of the gas pipeline based on a corrosion thickness prediction model includes:
determining potential of the each of the at least one position of the gas pipeline at the second time by processing environmental data of the at least one position at the first time based on the potential prediction layer; and
determining the electrochemical corrosion thickness of the each of the at least one position of the gas pipeline at the second time by processing the potential of the each of the at least one position, an electrochemical corrosion thickness of the each of the at least one position at the first time, and the point information of the each of the at least one position based on the corrosion thickness prediction layer, wherein the potential prediction layer and the corrosion thickness prediction layer are obtained through joint training based on a plurality of sets of first training samples with first labels; the first training samples include sample environmental data of a plurality of positions of the gas pipeline at a first historical time, the first labels are sample electrochemical corrosion thicknesses of the plurality of positions of the gas pipeline at a second historical time, and the first historical time is before the second historical time;
wherein the joint training includes:
inputting the first training samples to an initial potential prediction layer to obtain initial potential of the plurality of positions of the gas pipeline;
inputting the initial potential of the plurality of positions into an initial corrosion thickness prediction layer to obtain an initial electrochemical corrosion thickness of each of the plurality of positions of the gas pipeline;
constructing a loss function based on the first labels and the initial electrochemical corrosion thickness of the each of the plurality of positions, and
updating parameters of the initial potential prediction layer and the initial corrosion thickness prediction layer iteratively based on the loss function.

2. The method of claim 1 , wherein the evaluating the plurality of candidate site selection schemes after the at least one round of iterative updating using a preset evaluation function to determine a target site selection scheme includes:
determining evaluation values of the plurality of candidate site selection schemes based on the preset evaluation function, the evaluation values reflecting an effect of electrochemical corrosion protection of the candidate site selection schemes; and
designating a candidate site selection scheme with a highest evaluation value in the candidate site selection schemes as the target site selection scheme.

3. The method of claim 1 , wherein candidate site selection schemes of the at least one cathode protection station after a current round of iterative updating are used as candidate site selection schemes for a next round of iteration updating until an iteration termination condition is met; and
the iteration termination condition includes at least one of an evaluation value meeting a preset requirement, the evaluation value converging, and the iterative updating reaching a preset count of rounds.

4. The method of claim 1 , wherein a smart gas user platform comprises a gas user sub-platform and a supervision user sub-platform;
a smart gas service platform includes a smart gas use service sub-platform corresponding to the gas user sub-platform, and a smart supervision service sub-platform corresponding to the supervision user sub-platform;
the smart gas pipeline network safety management platform includes a smart gas pipeline network risk assessment management sub-platform and a smart gas data center, wherein the smart gas pipeline network risk assessment management sub-platform includes a pipeline network basic data management module, a pipeline network operation data management module, and a pipeline network risk assessment management module;
a smart gas pipeline network sensor network platform includes a smart gas pipeline network device sensor network sub-platform and a smart gas pipeline network maintenance engineering sensor network sub-platform; and
a smart gas pipeline network object platform includes a smart gas pipeline networ

Assignees

• Chengdu Qinchuan Iot Tech Co Ltd

Inventors

• Shao Zehua
• Li Yong
• Zhou Junyan

Classifications

• G01N17/02

  Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement · CPC title

• G06Q50/06

  Energy or water supply · CPC title

• G06Q10/20

  Administration of product repair or maintenance · CPC title

• F17D5/02

  Preventing, monitoring, or locating loss · CPC title

• F17D5/06 Primary

  using electric or acoustic means · CPC title