Polishing treatment device for inner wall of bent pipe fitting

Abstract

The invention discloses a polishing treatment device for the inner wall of a bent pipe fitting, which includes two semicircular spheres and a central shaft. There are grooves matching the protrusions on the top, and a wheel is installed on the outer peripheral wall of the sleeve. The main body is arranged on the sleeve, and a plurality of arc-shaped blades are arranged on both sides of the main body. A leaf groove is formed between them, and pulleys are installed at the ends of the upper and lower ends of the semicircular sphere. Aiming at the defects in the prior art that the inner surface of the oil pipeline is not properly treated before leaving the factory, which leads to a sharp decrease in its service life, the inventor designed a special grinding and polishing structure for the inner surface of the oil pipeline bend, through two semicircular The adjustment of the sphere and the roulette allows the polishing fluid to fully cover all parts of the elbow, reducing the probability of local protrusions on the inner wall of the elbow, so as to achieve the purpose of improving the service life of the oil pipeline.

Description

technical field [0001] The invention relates to the field of inner surface treatment of bent pipes, in particular to a polishing treatment device for inner walls of bent pipe fittings. Background technique [0002] Oil pipeline transportation, in addition to the influence of external factors of the pipeline, the roughness of the inner wall of the pipeline will also affect the efficiency of oil transmission, especially the irregular protrusions on the inner surface of the oil bend, which will not only hinder the flow of oil, but also Accelerate the corrosion of oil on pipelines. Traditional pipe wall grinding usually adopts abrasive water jet polishing technology, but the grinding head used often rubs against the inner wall of the pipe and is easily eroded by the grinding fluid, which eventually leads to wear of the grinding head and reduces the polishing efficiency of the inner surface of the elbow. Contents of the invention [0003] The object of the present invention is...

AI Technical Summary

Problems solved by technology

[0002] Oil pipeline transportation, in addition to the influence of external factors of the pipeline, the roughness of the inner wall of the pipeline will also affect the efficiency of oil transmission, especially the irregular protrusions on the inner surface of the oil bend, which will not only hinder the flow of oil, but also Accelerate oil corrosion of pipelines

Traditional pipe wall grinding usually adopts abrasive water jet polishing technology, but the grinding head used often rubs against the inner wall of the pipe, and is easily eroded by the grinding fluid, which eventually leads to wear of the grinding head and reduces the polishing efficiency of the inner surface of the elbow

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