Structure and construction method of prefabricated oil and gas multiphase transportation flat cavity intelligent insulation pipeline

Abstract

A prefabricated oil and gas multi-phase transportation flat cavity intelligent heat preservation pipeline structure and construction method, related to the pipeline technology field, it is composed of two pipelines connected by GFRP anti-buckling energy-dissipating dampers, each pipeline includes a single pipeline and an integral pipeline The node, the pipeline monomer includes the outer GFRP round tube, the inner GFRP round tube, the self-compacting fine stone concrete layer and the annular heat transfer plate; the outer wall of the outer GFRP round tube is provided with the reserved bolt holes and heat conduction of the outer GFRP round tube The pipe installation hole and the heat pipe installation hole are connected to the temperature control device through a steel anchor frame; the two pipe monomers are connected through an integral node, and the outer wall of the integral node is provided with concrete pouring holes and exhaust holes. The structure and construction method of the prefabricated oil and gas multiphase transportation flat cavity intelligent thermal insulation pipeline solve the problems of small diameter, poor stability, poor impermeability, low transmission efficiency, single transmission mode and poor thermal insulation performance of the transmission medium in high and severe cold areas of traditional pipelines.

Description

Technical field: [0001] The invention relates to the technical field of pipelines, in particular to the structure and construction method of an assembled oil and gas multiphase transportation flat cavity intelligent heat preservation pipeline. Background technique: [0002] Conventional long-distance pipelines are mostly round steel pipes and reinforced concrete round pipes, with diameters ranging from 0.5 meters to 1.5 meters. One end adopts the form of an enlarged head, and the connection between the pipes is realized through the head. The liquid is transported in the steel pipe all the year round, and it is easy to rust. Long-term erosion will reduce the effective thickness of the pipe wall, reduce the rigidity of the pipe wall, and local buckling will easily occur under the pressure of the soil and the outside world. At the same time, due to the erosion of the inner wall by the liquid in the pipeline, there are more and more impurities. It is difficult to meet the qualit...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and to provide a structure and construction method of an assembled oil-gas multi-phase transportation flat cavity intelligent heat preservation pipeline, which is used to solve the problems of small diameter, stability, and resistance of traditional pipelines. Poor permeability, low transmission efficiency, single transportation mode, and poor thermal insulation performance of the transportation medium in high and severe cold areas, and at the same time provide a construction method for this assembled oil and gas multi-phase transportation flat cavity intelligent insulation pipeline structure system

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