Rib type coupled wear-resistant composite lining repair pipe and lining repair method

Abstract

The invention discloses a rib type coupled wear-resistant composite lining repair pipe and a lining repair method.The rib type coupled wear-resistant composite lining repair pipe comprises an inner layer and an outer layer, the inner wall of the inner layer is a smooth annular wall face, and a plurality of groove structures arranged in the axial direction are formed in the outer wall of the inner layer in the circumferential direction of the inner layer; a rib structure is formed between every two adjacent groove structures on the outer wall of the inner layer, and the outer layer wraps the peripheries of the groove structures and the rib structures of the inner layer. The inner layer of the lining repair pipe is prepared from a polyolefin elastomer wear-resistant material Si-TPE by adopting an advanced polymer modification technology, the lining repair pipe has excellent wear resistance and processability, the wear-resistant mechanism of the lining repair pipe is that impact and cutting of solid particles on the inner surface of the pipe are buffered through elastic deformation by applying the material characteristics of an elastomer, and the wear resistance of the lining repair pipe is improved. The double-phase medium conveying device can be well suitable for conveying solid-phase and liquid-phase media.

Description

technical field [0001] The invention relates to the field of repairing pipelines with inner linings, in particular to a rib-type coupled wear-resistant composite inner lining repairing pipe and an inner lining repairing method. Background technique [0002] The traditional repair lined pipe is mainly composed of a single PE solid wall pipe lined in the steel pipe or the pipe to be repaired to achieve various functions such as barrier, repair, and anti-corrosion. However, this kind of plastic pipe is used in some special fields, such as When transporting some solid-liquid two-phase ore slurry, sediment, and coal-water slurry, the erosion effect of the medium in the pipe on the pipe must be considered, and ordinary plastic pipes are difficult to meet this long-term use requirement. [0003] For some composite lined pipes with functional layers added, although they can meet the needs of individual working conditions, due to the large deformation of the pipes in the subsequent l...

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Problems solved by technology

[0006] At present, in the field of lining repair pipelines, the main lined pipelines are plastic pipelines, but the traditional lining pipelines have single materials and no functional layers, which cannot be adapted to various application conditions, and the single structure cannot be applied to various construction conditions. There are many pain points, so a new type of functionalized and structurally diverse liner repair tube is designed

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