Mounting construction process of directly-buried polyurethane thermal insulation pipe

Abstract

The invention relates to a mounting construction process of a directly-buried polyurethane thermal insulation pipe, in particular to a mounting construction device of the directly-buried polyurethanethermal insulation pipe. The device comprises a bearing frame, a lifting adjustment mechanism, four clamping actuation mechanisms and adjustable clamping mechanisms, wherein the lifting adjustment mechanism is arranged on the bearing frame, the four clamping actuation mechanisms are arranged on the lifting adjustment mechanism and are divided into two groups, the two clamping actuation mechanismsin each group are arranged oppositely in a mirroring mode, and each clamping actuation mechanism is correspondingly provided with one adjustable clamping mechanism. Through the construction device, apipe orifice can be welded in an auxiliary mode during direct-burying construction of the polyurethane thermal insulation pipe, quick and automatic alignment of the pipe orifice can be realized, meanwhile alignment adjustment during pipe orifice welding is more efficient and accurate and saves more labor, and mounting construction quality is improved.

Description

technical field [0001] The invention relates to the technical field of polyurethane thermal insulation pipe construction, and specifically proposes a direct-buried polyurethane thermal insulation pipe installation and construction process. Background technique [0002] Polyurethane insulation pipe is mainly a high-strength insulation pipe that uses steel pipe as the main material, rigid polyurethane foam as the protective layer, and high-density polyethylene or fiberglass as the protective shell; polyurethane insulation pipe has high strength and good sound insulation. Flame-retardant, cold-resistant, anti-corrosion, non-absorbent, and convenient construction are mainly used in various cold and hot pipeline transportation industries. Generally, they can be widely used in various construction, transportation, petroleum, chemical, electric power, refrigeration and other industries. [0003] The direct-buried polyurethane insulation pipe is directly connected and installed unde...

AI Technical Summary

Problems solved by technology

[0004] 1) The quality of a single pipe body of polyurethane thermal insulation pipe is generally heavy. When the pipeline is directly buried, the direct buried pit itself is not smooth, so the polyurethane thermal insulation pipe placed in the direct buried pit needs to be manually adjusted to align the nozzle, which is time-consuming and laborious;

[0005] 2) During the existing construction and installation, although devices such as lifting brackets are also used to assist nozzle alignment, generally such devices can only lift one end of the polyurethane insulation pipe, which still requires laborious alignment, and it is not easy to ensure the alignment of the two ends. The nozzles are fully aligned (the central axes of the metal steel pipes of the two polyurethane insulation pipes are basically coincident when fully aligned)

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