On-line monitoring method and system for remaining life of sacrificial anode of gas pipeline
A sacrificial anode and gas pipeline technology, which is applied in the field of on-line monitoring of the remaining life of sacrificial anodes, can solve the problems of gas pipeline leakage, gas pipeline loss of protection, and difficulty in timely observation, etc.
Active Publication Date: 2022-05-24
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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Problems solved by technology
The sacrificial anode can effectively protect the gas pipeline from corrosion, but once the sacrificial anode is corroded and disappears, the gas pipeline will lose its protection
Since the corrosion rate of the sacrificial anode is closely related to the environment, and it is generally buried underground, it is not easy to observe whether it is completely corroded in time, especially after a long time, the sacrificial anode of the gas pipeline is completely corroded, and the gas pipeline loses protection. As we all know, gas pipelines are extremely prone to leakage risks
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[0049] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0050] figure 1 It is a schematic flowchart of an online monitoring method for the remaining life of the sacrificial anode of a gas pipeline in one embodiment. Gas pipelines are buried underground.
[0051] like figure 1 As shown, the method for online monitoring of the remaining life of the sacrificial anode of the gas pipeline includes steps 102 to 106:
[0052] Step 102 , collect the natural output current of the sacrificial anode of the gas pipeline when the sacrificial anode is not disturbed by the stray current, and collect the equivalent output current of the sacrificial anode wh...
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The embodiments of the present invention provide a method and system for online monitoring of the remaining life of the sacrificial anode of a gas pipeline, using on-site signal acquisition equipment to collect the natural output current of the sacrificial anode of the gas pipeline when it is not disturbed by stray current, and to collect the sacrificial anode The equivalent output current of the sacrificial anode when disturbed by stray current; the gas pipeline is buried underground; the natural output current and the equivalent output current; the remaining life of the sacrificial anode is calculated online by the data processing terminal according to the natural output current and the equivalent output current.
Description
technical field [0001] The invention relates to the field of on-line monitoring of gas pipelines, in particular to a method and system for on-line monitoring of the remaining life of sacrificial anodes of gas pipelines. Background technique [0002] High-pressure gas pipelines buried in urban underground are generally made of stainless steel and other metal materials. Due to the complex underground environment, humidity, acid and alkali and other factors will corrode and damage the gas pipeline. Once the pipeline is damaged by perforation, it will cause immeasurable damage to the safety of people's lives and property. The corrosion protection of gas pipelines is generally protected by external more active metal objects (ie sacrificial anodes), so that the corrosion of the gas pipelines by the environment is the corrosion of the sacrificial anodes. The sacrificial anode can effectively protect the gas pipeline from corrosion, but once the sacrificial anode is corroded and di...
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IPC IPC(8): C23F13/22
CPCC23F13/22C23F13/005
Inventor 董志君刘伟梁凯唐路平
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY