Union connecting structure with high polymer material lining and assembling method thereof

Abstract

The invention provides a union connecting structure with a high polymer material lining and an assembling method thereof. The problem that in the prior art, an oil conveying pipeline is prone to corrosion and leakage can be solved. The structure comprises a first connecting pipe, a second connecting pipe and a middle fastening part, the second connecting pipe and the first connecting pipe are spliced, the second connecting pipe and the first connecting pipe are relatively locked through the middle fastening part, an inner hole of the first connecting pipe is internally sleeved with a first lining pipe, a first turning edge which protrudes outwards is mounted on the pipe opening position of the first lining pipe, an inner hole of the second connecting pipe is internally sleeved with a second lining pipe, the pipe opening position of the second lining pipe is provided with a second turning side which protrudes outwards, the first lining pipe and the second lining pie are both made of high polymer materials, when the first connecting pipe and the second connecting pipe are spliced, the first turning side and the second turning side are axially clamped by the ends of the first connecting pipe and the second connecting pipe, and corrosion and leakage can be prevented.

Description

technical field [0001] The invention relates to the field of crude oil gathering and transportation engineering, in particular to a union connection structure with a polymer material lining and an assembly method thereof. Background technique [0002] In the field of crude oil gathering and transportation projects on the surface of oil fields, steel pipelines are easily corroded due to the transportation of corrosive media such as crude oil and sewage, resulting in frequent pipeline leakage accidents and the leakage pollutes the environment. The anticorrosion and rapid repair of pipelines have become a difficult problem. [0003] The union structure is one of the commonly used connection methods for ground gathering and transportation pipelines. The traditional union seal structure cannot effectively isolate the transported medium, and its interior is prone to corrosion when in contact with the medium. Contents of the invention [0004] In view of the above-mentioned shor...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a union connection structure with a polymer material lining and its assembly method, which is used to solve the problem of easy corrosion and leakage of oil pipelines in the prior art

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