Stainless steel pipeline emergency maintenance construction method

Abstract

The invention belongs to the technical field of pipeline emergency maintenance and particularly discloses a stainless steel pipeline emergency maintenance construction method which comprises the following steps: S1, cutting off an aleak pipeline section; S2, preparing a stainless steel plastic covered pipe shorter than the aleak pipeline section, and inserting stainless steel cores at the two endsof the stainless steel plastic covered pipe; S3, arranging electric smelting pipe fittings at the first end and the second end of a to-be-repaired stainless steel pipeline in a sleeving manner, or arranging two electric smelting pipe fittings on the stainless steel plastic covered pipe in a sleeving manner; S4, inserting the stainless steel core at one end of the stainless steel plastic covered pipe at the first end, then, pulling the stainless steel core at the other end of the stainless steel plastic covered pipe to insert the stainless steel core at the second end, and filling a positioning block between the end part of the second end and the end part of the stainless steel plastic covered pipe; and S5, moving the electric smelting pipe fittings to the parts, adjacent to the first endand the second end, of the stainless steel plastic covered pipe, and carrying out hot melting butt fusion. Compared with the pipeline emergency maintenance fast section by adopting the Hough section,the stainless steel pipeline emergency maintenance construction method prevents a damaged pipeline from continuously working, so that the reliability that a stainless steel pipeline conveys a medium is ensured.

Description

technical field [0001] The invention belongs to the technical field of emergency repair of pipelines, in particular to a construction method for emergency repair of stainless steel pipelines. Background technique [0002] After a long period of use, all kinds of pipelines conveying fluid medium will inevitably have water and air leakage problems. When water leakage and air leakage occur, the most undesirable way is to replace the water and air leakage pipelines with brand new ones. Instead, it will inevitably consume a lot of manpower and material resources, increase the cost of pipeline maintenance, and increase the burden on users. [0003] In the prior art, the Huff-type pipeline emergency repair joint is generally used to repair the accident pipeline. Specifically, the Huff-type pipeline emergency repair joint includes a quick-joint body composed of two semi-cylindrical shells, two pieces of rubber Pad and several fasteners; when in use, just lay the rubber pad inside t...

AI Technical Summary

Problems solved by technology

However, when using a large-diameter pipeline to repair the fast joint, since the weight of the gasket also increases with the increase of the diameter, during the process of hoisting the fast joint body, it may be caused by the excessive weight of the gasket and insufficient adhesiveness. Gasket falls off, making assembly cumbersome

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