Oil gas multi-phase leveling cavity heat preservation combination pipeline structural system and construction method

Abstract

The invention discloses an oil gas multi-phase leveling cavity heat preservation combination pipeline structural system and a construction method, and relates to the technical field of pipelines. Thesystem is formed by connecting two pipelines through a GFRP anti-buckling energy dissipation damper. Each pipeline comprises pipeline monomers and integrated joints. Each pipeline monomer comprises anouter layer GFRP circular pipe, an inner layer GFRP circular pipe, a self-compaction fine aggregate concrete layer and a heat preservation plate, wherein an outer layer GFRP circular pipe reserved bolt hole is formed in the outer wall of the outer layer GFRP circular pipe; the two pipeline monomers are connected through the integrated joints, the integrated joints are connected with the bolt holes in the two ends of the two pipeline monomers through high-strength bolts, concrete pouring holes and exhaust holes are formed in the outer walls of the integrated joints, and the concrete pouring holes and the exhaust holes are distributed at intervals. According to the oil gas multi-phase leveling cavity heat preservation combination pipeline structural system and the construction method, the problem that a traditional pipeline is small in diameter, poor in stability and anti-permeability, low in transporting efficiency, single in conveying mode and poor in cold region transporting medium heat preservation performance is solved.

Description

Technical field: [0001] The invention relates to the technical field of pipelines, in particular to a structural system and a construction method of an oil-gas multiphase leveling cavity and heat preservation composite 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 quality inspection st...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an oil-gas multi-phase leveling chamber heat preservation combined pipeline structure system and construction method, which is used to solve the problem of small diameter, stability, impermeability, etc. of traditional pipelines. In order to solve the problems of poor performance, low transportation efficiency, single transportation mode and poor thermal insulation performance of transportation medium in cold regions, a construction method for this oil-gas multiphase leveling cavity thermal insulation composite pipeline structure system is provided at the same time

Images