Method for butting straight bent pipe and straight pipe of long transmission line pipeline with small and medium pipe diameters in air

Abstract

The invention discloses a method for butting a straight bent pipe and a straight pipe of a long transmission line pipeline with small and medium pipe diameters in air, relates to the technical field of pipeline construction, and aims to improve the construction quality and the construction efficiency and reduce the construction cost and unsafe factors at the same time. The method comprises the steps that 1, straight bent pipe sections are assembled on the ground, and welding is completed; 2, traction positioning blocks are welded to the outer sides of the bent pipe parts of the straight bent pipe sections; 3, supports are arranged, and pipe brackets are arranged on the supports; 4, the straight bent pipe sections and straight pipe sections are hoisted to the pipe brackets; and 5, chain blocks and traction steel wire ropes are used for pulling the traction positioning blocks to move pipe fittings, an operation platform is erected at the upper ends of the supports, and welding construction is conducted on the to-be-butt-jointed positions of the straight bent pipe sections and the straight pipe sections to complete air butt joint. The method is convenient to operate, safe and reliable to use and high in applicability, the construction cost and unsafe factors are reduced, and the construction quality and the construction efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a method for butt jointing straight bends and straight pipes of small and medium-sized pipe diameters and long pipelines in the air. Background technique [0002] At present, the installation of medium and small-diameter long-distance pipelines is usually carried out after the completion of grouping and pairing on the ground for hoisting and construction. However, at the construction site, due to the limitation of the space environment of the site, the butt joint construction of straight bend pipes and straight pipes of some small and medium diameter long pipelines consumes a lot of manpower and material resources, and the construction period is long, which often affects the progress of the next process. , increased the labor intensity of construction workers, and there are still potential safety hazards; therefore, there is an urgent need for small and medium-sized...

AI Technical Summary

Problems solved by technology

However, at the construction site, due to the limitation of the space environment of the site, the butt joint construction of straight bend pipes and straight pipes of some small and medium diameter long pipelines consumes a lot of manpower and material resources, and the construction period is long, which often affects the progress of the next process. , increasing the labor intensity of construction workers, and there are still potential safety hazards; therefore, there is an urgent need for a method of connecting straight elbows and straight pipes in the air with small and medium diameter long pipelines to solve this problem

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