Sinopec Shanghai Petrochemical Co., Ltd. issued an inspection company to successfully implement carbon fiber composite reinforcement and repair technology on severely corroded pipelines with a defect reduction of 50%, breaking the company's previous application of this technology on pipelines with a defect reduction of less than 30%. The "banning" signifies that the company has domestically leading technology and competitiveness in carbon fiber composite material reinforcement and repair of chemical pipelines.
Carbon fiber composite material repairing chemical pipeline technology has the advantages of short construction period, easy operation, and does not affect the normal operation of pipeline equipment during construction, and can avoid hidden safety hazards and shutdown risks caused by special operations such as welding and hot fire. Shanghai Petrochemical Investment Development Inspection Company began applying the repair technology in 2014. In 2016, for the first time, the company successfully covered and repaired the severely corroded sections of the company's propylene circulation line pipelines with its self-produced carbon fiber composite materials, opened up the upstream and downstream processes for the integration of new materials and new technologies, and created the largest use of internal resources in this field. Of cooperation, win-win cooperation, cost reduction and efficiency. In the same year, the company provided this technical service to surrounding enterprises. As of April 2019, the company has successfully repaired more than 3,000 square meters of severely corroded pipes without stopping, and the repair rate is zero.
In order to further promote the integration, large-scale and deep application of this new material and new technology, last year, Shanghai Petrochemical Investment Development Inspection Company tried to use this technology to carry out repeated experiments on severely corroded pipelines with pipeline defects reduced by less than 80%. The conclusion that this technique can be applied. Recently, the company successfully covered and repaired the externally corroded pipelines with a defect reduction of 50% for the first time, which further opened up the application space for this technology. status.