The Research On Integrity Assessment System Of Corrosion Protection For City Buried Gas Piplie

With the development of the economy and adjustment of the policy for energy resource in China, pipeline transport as a powerful freight transport modalities has already become one of the five major transport means by its advantages. But the accidents of aged pipeline , especially city buried gas pipeline , caused by corrosion are badly endangering country common property and the safety of the residents.Professional management and efficient anti-corrosion system is guarantee of Security and efficiency for pipeline transport, so this dissertation analyzes the principle and characteristic of inspection ways uesd commonly to corrosion protection system of buried ferrous pipeline and summarizes practicability of the ways for city buried ferrous pipeline inspection, sums up assessment methodology of the protective coating classification and assessment criterions of Cathodic Protection for buried ferrous pipeline, builds the database which is used to keep the relative data of pipelines and inspecting corrosion protection system, develops the application software which can realizes the general operation of database , assesses the inpection data and gives the assessment result by words or graphs according to the related rules and criterion of the nation or industry.The contents of the dissertation about the inspection technology can be reference, to a certain degree, for choose of city buried ferrous pipelines inspection instrument. The application of the software can decrease the labor of technician in assessing inpection data and provide the convenient path for relative people to access the related information of pipeline.