Fireproofing and heat preservation integrated composite air pipe

Abstract

The invention discloses a fireproofing and heat preservation integrated composite air pipe. The fireproofing and heat preservation integrated composite air pipe comprises a steel pipeline forming an air pipe main body frame, a heat-preservation and heat-insulation layer covering the outer peripheral surface of the steel pipeline and a fire-resistant layer fixed to the outer peripheral surface of the heat-preservation and heat-insulation layer. The fireproof and heat preservation integrated composite air pipe has the beneficial effects that a steel air pipe, a heat preservation material and a fireproof material are integrated to form the composite air pipe which can simultaneously meet the requirements of air conditioning and smoke prevention and discharge; the composite air pipe meets therequirements of the air conditioning and smoke prevention and discharge on the heat insulation performance and the fireproof performance of the air pipe and effectively solves the problems of complexsite construction procedures, long construction period and difficult later maintenance of an air conditioning and smoke prevention and discharge air pipe can be effectively solved, and the problem ofdamage to the overall performance of a heat insulation layer and a fireproof layer which are wrapped outside the air pipe in the process of installing the air pipe on site.

Description

technical field [0001] The invention relates to an air duct for ventilation and smoke exhaust, in particular to a composite air duct for ventilation, air conditioning and smoke exhaust. Background technique [0002] The national standard GB 51251-2017 "Technical Standards for Smoke Prevention and Smoke Exhaust Systems in Buildings" implemented on August 1, 2018 puts forward specific fire resistance time requirements for smoke prevention and exhaust pipes. The national standard GB 50981-2014 "Code for Seismic Design of Building Mechanical and Electrical Engineering" puts forward requirements for the materials of smoke prevention and exhaust pipes in buildings with different earthquake resistance levels. Or steel plate production, high-rise buildings and buildings in 9-degree areas should be made of hot-dip galvanized steel plate or steel plate. According to the requirements of the above specifications, the smoke prevention and exhaust duct should not only meet the requiremen...

AI Technical Summary

Problems solved by technology

This scheme not only has many procedures, but also the construction is difficult, the construction period is long, and it is not convenient for later maintenance operations.

The waste of materials is serious during the construction process, and each process will cause damage to the upstream process and damage the integrity of the air duct

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