【Case of Smoke Prevention and Exhaust Duct】China Mobile Yangtze River Delta (Nanjing) Science and Technology Innovation Center

       Air ducts, as the "capillaries" of buildings, are the "fire-fighting magic weapon" of the entire project. In the event of a fire, they are key fire-fighting facilities for effectively controlling smoke. To this end, the project team adopted fire-resistant wrapping with high fire resistance limits, combined with continuous construction technology for fire-resistant wrapping, avoiding the blocking of fire-resistant wrapping by brackets, protecting the integrity of the pipes in the smoke control and exhaust system, and effectively ensuring the safety of buildings or equipment in case of fire.

     Yuanyang Weili silicate kaolin composite fireproof board is an independent research and development and design of smoke control and exhaust duct system production and installation technology by Ocean Willy, which took 5 years, combined with many experts in the field of production and installation of smoke control and exhaust systems, based on comprehensive consideration of factors in the entire process of production, transportation, installation, etc., and with reference to standards such as JG/T258-2018, JG/T141-2017, and GB 50243-2016. It has significantly reduced the overall weight and comprehensive cost of the smoke control and exhaust system.

     Yuanyang Weil's smoke control and exhaust duct system has passed the testing by the National Fireproof Building Materials Quality Supervision and Inspection Center and the Tianjin Fire Research Institute of the Ministry of Emergency Management, and has passed the 1-hour, 2-hour, and 3-hour fire resistance tests.

Case Details

The Phase I Project, Plot C of China Mobile Yangtze River Delta (Nanjing) Science and Technology Innovation Center, is located in the Research and Innovation Park of Nanjing Jiangbei New Area, with a total construction area of 124,000 square meters. It is constructed by China Construction Third Engineering Bureau Co., Ltd. This project is an independent innovation pilot zone and a modern industrial agglomeration area that China Mobile strives to build in the Yangtze River Delta region, and it is also a key provincial project in the field of new infrastructure in Jiangsu Province. Connect and promote the integrated development of cities and counties.

Product Application Highlights: Green and Environmentally Friendly, Class A Non-combustible, Convenient Construction, Durable and Long-lasting

Introduction to Application Products

In fire protection design codes and technical standards, it is required that the materials used for smoke prevention and exhaust ducts are non-combustible materials. In fact, the requirement for materials to be non-combustible is only one aspect, which is a necessary but not sufficient condition. An ideal material should simultaneously meet the characteristics of non-combustibility, high temperature resistance, low thermal conductivity, and long durability. On the basis of summarizing the existing major domestic fire protection design codes, technical standards, and project acceptance specifications, and considering the full life cycle characteristics of smoke prevention and exhaust system products from production, transportation, installation to use and maintenance, a self-developed silicate kaolin composite fireproof board is used for smoke prevention and exhaust systems. Its specific properties are as follows:

Fire resistance rating: Class A  
Thermal conductivity: 0.18W/(㎡·k)  
High temperature resistance: 1200℃  
Processing characteristics: Can be cut, punched, sawn, glued, nailed, and tenoned