In modern buildings, the fire protection wrapping of ventilation ducts has received much attention. In the past, galvanized iron air ducts were commonly used, but they were not fire-resistant, so many people began to use fire-resistant wrapped air ducts, which effectively improved the fire resistance limit of the smoke prevention and exhaust system and ensured the building safety of residents. So, how is the ventilation pipe fire protection package made?

　　The ventilation duct fireproof package has the characteristics of non-combustibility, light weight and high strength. The fireproof package is suitable for the fire protection of power cables, as well as for the production of fire-resistant air ducts, fire-resistant ceilings, and steel structure fire-resistant cladding. In the central air-conditioning system, if the ventilation pipe is a non-refractory material, it is easy to burn or deform at high temperature, and a fire is likely to occur in an open fire environment, so it is necessary to make a fireproof package for the ventilation pipe.

　　The material of the fireproof package of the ventilation pipe is generally glass wool and rock wool. Glass wool is a kind of fibrous structural material, which meets the standard of Class A non-combustible fireproof building materials. Rock wool is made of basalt melted at high temperature, which can withstand high temperature, has good fireproof and heat insulation performance, and meets the fireproof requirements of Class A non-combustible. The relevant technical standards for building smoke prevention and exhaust systems are to rationally design building smoke prevention and exhaust systems, ensure construction quality, standardize acceptance and maintenance management, so as to reduce fire hazards and protect personal and property safety!

　　When the ventilation pipe is used as a fireproof package, if it is covered with an outer cover, the thickness of the fireproof board is between 8-10mm, the fireproof board with fire resistance for 1 hour is 8mm, and the fireproof board with fire resistance for 2 hours is 10mm. If air duct + rock wool + fireproof board is used, 8-9mm refractory air duct board is required for coating treatment, and Uetersen rock wool is filled in the middle, so that the fire resistance of the ventilation duct can be improved to 1-3 hours.