On January 4th, the first batch of FRP pipes produced by the Henan Oil Construction Company of the Petroleum Engineering Construction Company were all prefabricated and passed the inspection, indicating that the company has completely mastered the 3PE (three-layer structure polyethylene anticorrosive layer) anticorrosive pipe FRP protective layer One-time molding technology, pipeline anti-corrosion construction technology innovation adds a new dimension.
This technology is independently developed by Henan Youjian. It adopts a fully automatic winding method. Under the conditions of controlled tension and predetermined line shape, it can continuously, evenly and regularly wind glass fiber impregnated with resin glue, forming a certain amount at one time. Thickness of FRP protective layer. The entire winding process is controlled by a computer. The formed glass fiber reinforced plastic protective layer has a uniform thickness and a smooth appearance, which effectively avoids the common problems of manual winding such as bulging, pits, and delamination.
“Like this kind of prefabricated glass fiber reinforced plastic protective layer with a pipe diameter of 1016 mm, it took 6 to 7 days to complete a steel pipe prefabricated by manual winding. Now, the one-time forming technology is adopted. The whole process only takes 50 to 60 minutes, which is labor-intensive. Significant reduction, more stable prefabrication quality and higher prefabrication efficiency.” Xu Dongsheng, director of the anti-corrosion plant, said that at present, the company has fully automatic prefabrication capabilities for glass fiber reinforced plastic protective layers for pipes of various specifications in the range of 200 mm to 1,000 mm.
In recent years, with the continuous increase in investment and construction of oil and gas long-distance pipelines, long-distance directional drilling crossing projects continue to appear, and the FRP protective layer will play a more important role in the protection of the pipeline 3PE anti-corrosion layer. The one-time forming technology of the FRP protective layer will also become an important tool for the company to develop the anti-corrosion construction market segment of the directional drill crossing project.
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Post time: Sep-26-2021