Anticorrosive compound tube and anticorrosive compound tube provided with system

Abstract

The invention relates to the technical field of anticorrosion of compound tubes, in particular to an anticorrosive compound tube. The radius of a round outlet end of a corrosion-resistant tube is larger than that of a round inlet end of the corrosion-resistant tube, and a steel tube is of a structure which is adapted to the corrosion-resistant tube. When a liquid flows in the corrosion-resistant tube, due to the fact that the inlet is small and the outlet is big, the corrosion-resistant tube is not prone to be blocked, the flowing of the liquid is accelerated, and the existing problems that the corrosion-resistant tube is prone to be blocked when the liquid flows in the tube, as a result the liquid stays in the tube for a long time, the contact time between the liquid and the tube is greatly increased, the additional corrosion is generated, and the service life of the tube is greatly shortened are effectively solved.

Description

technical field [0001] The invention relates to the technical field of anticorrosion of composite pipes, in particular to an anticorrosion composite pipe. Background technique [0002] Due to the advantages of light weight, corrosion resistance, good impact resistance and tensile strength, small friction coefficient, small fluid resistance, and convenient installation, plastic pipes are widely used in various production fields and develop rapidly. However, the structure of plastic pipes is not firm enough, and Steel pipes can overcome the above shortcomings. However, due to the nature of the steel pipe itself, there are problems such as easy corrosion and rust. Therefore, a new composite pipe has emerged in recent years. [0003] However, the existing composite pipes generally have good corrosion resistance to non-oxidizing acids (such as hydrochloric acid, dilute sulfuric acid, hydrofluoric acid), dilute nitric acid, alkali and salt solutions at room temperature. Pipeline ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the existing liquid is prone to pipeline blockage during the flow of the pipeline, causing the liquid to stay in the pipeline for a long time, greatly increasing the contact time between the liquid and the pipeline, and causing additional corrosion , causing the problem that the service life of the pipeline is greatly reduced. The invention provides an anti-corrosion composite pipe. The radius of the circular outlet end of the corrosion-resistant pipe is larger than the radius of the circular inlet end. When flowing in the pipeline, because the inlet is small and the outlet is large, it is not easy to be blocked, and the liquid flow is accelerated. The contact time between the liquid and the pipeline is shortened, resulting in additional corrosion, which greatly reduces the service life of the pipeline

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