Fireproof treatment method for air pipe

Abstract

The invention discloses a fireproof treatment method for an air pipe. The method comprises the steps as follows: a, coating the outer surface of the air pipe with a layer of antirust paint; b, coating the surface of the dried antirust paint with at least a layer of fireproof paint to form a fireproof layer for fireproof protection; and c, coating the outer surface of the dried fireproof layer with a layer of finish paint, and baking or naturally drying to finish the fireproof treatment of the air pipe, wherein the fireproof paint is a thick steel structure fireproof paint, a thin steel structure fireproof paint or an ultrathin steel structure fireproof paint; and the fire endurance limit of the thick steel structure fireproof paint, the thin steel structure fireproof paint or the ultrathin steel structure fireproof paint is 0.5-3 hours. According to the fireproof treatment method, the air pipe can be directly subjected to the fireproof treatment, the treatment process is simple and quick, the air pipe after the fireproof treatment is fireproof and can be directly mounted for use, a large amount of spaces and floor areas can be saved, and the air pipe after the fireproof treatment is stable and reliable in fireproof performance, low in cost and good in appearance.

Description

【Technical field】 [0001] The invention relates to an air duct for fire protection, in particular to a fire prevention treatment method for an air duct for ventilation and smoke exhausting. 【Background technique】 [0002] Smoke prevention and exhaust systems for fire protection are widely used in office buildings, hotels, restaurants, theaters, shopping malls, hospitals, underground parking lots and other places that require smoke prevention and exhaust. Existing fans, air ducts, air valves, etc. used for smoke prevention and exhaust are mostly made of steel or galvanized steel, and such equipment itself is not protected against fire, so it does not have fire protection functions. A large number of scientific research data and fire cases at home and abroad show that air ducts, fans, dampers, etc. that are not protected against fire are at risk of collapse, deformation, and destruction during the fire process, and equipment damage will lead to fire and smoke spread. . Theref...

AI Technical Summary

Problems solved by technology

Although this method can play a role in fire prevention, because the closed space constructed by this method not only occupies a certain space on the construction site, but also it is difficult to ensure the treatment of the interface, resulting in difficult construction and high cost

The fixed size and extremely poor plasticity of the air duct make the construction difficult, and the material and labor costs are high

Another method currently used is to wrap it with soft fire-resistant cotton felt. Although this method can be installed on the surface of the equipment, the installation is more convenient and the fire-resistant performance is better, but the use of qualified fire-resistant cotton felt will increase the installation cost, and Difficult to cover all irregular corners

In addition, more users simply ignore the relevant regulations and install them directly, thus burying potential safety hazards.

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