Large-diameter long-distance intelligent heat preservation combined pipeline structure and its construction method

Abstract

A large-diameter long-distance intelligent thermal insulation composite pipeline structure and its construction method relate to the technical field of pipelines and include pipeline monomers and integral joints. The pipeline monomers include outer GFRP round pipes, inner GFRP round pipes, and self-compacting Fine stone concrete layer and annular heat transfer plate, bolt holes are provided at both ends of the pipe unit; the outer wall of the outer GFRP round pipe is provided with reserved bolt holes and heat pipe installation holes for the outer layer GFRP round pipe, and the outside of the heat pipe installation hole Install a steel anchor frame with a temperature control device on the steel anchor frame, which is connected to the annular heat transfer plate; the two pipeline monomers are connected through an integral node, and the integral node is connected to the two pipeline monomers through high-strength bolts Connection, the outer wall of the integral node is provided with concrete pouring holes and air vents, and the concrete pouring holes and air vents are distributed at intervals. The large-diameter long-distance intelligent thermal insulation composite pipeline structure and its construction method solve the problems of small diameter, poor stability, poor impermeability of traditional pipelines and poor thermal insulation performance of conveying media in high and severe cold areas.

Description

Technical field: [0001] The invention relates to the technical field of pipelines, in particular to a large-diameter long-distance intelligent heat preservation composite pipeline structure and a construction method thereof. 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 standa...

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 to provide a large-diameter long-distance intelligent thermal insulation combined pipeline structure and its construction method, which is used to solve the problems of small diameter, stability, impermeability, etc. of traditional pipelines. In order to solve the problem of poor thermal insulation performance of transmission medium in high and severe cold areas, it also provides a construction method for this large-diameter long-distance intelligent thermal insulation combined pipeline structure system

Images