Installation and construction technology of a directly buried polyurethane thermal insulation pipe

Abstract

The present invention relates to a direct-buried polyurethane thermal insulation pipe installation and construction process, and specifically relates to a direct-buried polyurethane thermal insulation pipe installation and construction device, including a bearing frame, a lifting adjustment mechanism, a clamping actuator and an adjustable clamping mechanism. The lifting adjustment mechanism is arranged on the carrier frame, and the lifting adjustment mechanism is provided with four clamping actuators, and the four clamping actuators are arranged in two groups, and two of the clamping actuators are arranged in each group. The above-mentioned clamping actuators are set opposite to each other in a mirror image, and each of the clamping actuators is correspondingly provided with the adjustable clamping mechanism; the construction device involved in the present invention can assist the nozzle when the polyurethane insulation pipe is directly buried. Welding can realize rapid and automatic alignment of the nozzle, and at the same time, it will be more efficient, less labor-saving and more accurate when adjusting the welding alignment of the nozzle, which improves the quality of installation and construction.

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) In 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 that the two ends after alignment are aligned. 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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