Construction method of internal thermal insulation metal air duct

Abstract

The invention provides an internal thermal insulation metal air duct construction method which comprises the following steps: presetting an anchoring sliding plate in an upper floor slab, connecting a connecting nut with the anchoring sliding plate through a bolt hanging plate, and connecting the anchoring sliding plate with a floor slab reinforcement cage; the mounting flatness of the heat preservation air pipe is adjusted through the hanging bolt; two groups of connection correcting bodies are arranged on the support platform plate, and the spatial position of the heat preservation air pipe joint part is accurately controlled through a transverse correcting bolt, a standard height correcting body and a longitudinal correcting body; an inner supporting box body and an inner supporting bag are arranged in a pipe cavity of the heat preservation air pipe. Plate cavity connecting ribs connected with the pipe side connecting ribs are pre-arranged in the air pipe plate penetrating holes of the upper floor slab; a pipe bottom position adjusting bolt and a pipe side position adjusting bolt are arranged between the air pipe through-wall hole and the heat preservation air pipe, and a gap between the heat preservation air pipe and the masonry wall is sealed through light concrete. The construction efficiency can be improved, the mounting and positioning precision is improved, and the construction difficulty is reduced.

Description

technical field [0001] The invention relates to the field of air duct construction, in particular to an internal thermal insulation metal air duct construction method that can improve construction efficiency, improve installation and positioning accuracy, and reduce construction difficulty. Background technique [0002] When a large building is being renovated, air and smoke will be transported through the air duct to solve the problems of ventilation and environmental protection in the building. During the construction of traditional air ducts, how to improve the installation and positioning accuracy of air ducts, reduce the difficulty of air duct construction, and improve on-site construction efficiency has always been the focus and difficulty of engineering control. [0003] In the prior art, there is a construction method for internally insulated metal air ducts, which consists of making air ducts, adding insulation materials, pasting and installing panels, reinforcing a...

AI Technical Summary

Problems solved by technology

Although this construction method can achieve the effect of low cost and convenient construction, it is difficult for this technology to simultaneously meet the problems of improving installation positioning accuracy, improving air duct installation quality, and improving structural connection strength.

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