Research on the Renovation Effect of Smoke Control and Extraction System in High and Large Banquet Hall
The safety and reliability of the smoke control system in high and large space is very important.The smoke control and extraction system of a hotel in Ningbo needs to be reformed,and the banquet hall is a high and large space.This paper conducts numerical simulation research on the renovation design scheme of the smoke control and extraction system in the banquet hall.First,the smoke volume is calculated according to the current specification,and the smoke outlet is designed,and the calculated smoke volume is reduced by 41%compared with the original design volume,and the smoke outlet is reduced by 1.Then,the smoke diffusion before and after the retrofit is simulated by using Pyrosim software,and the parameters such as visibility,temperature,and CO concentration are monitored in the banquet hall.During the safe evacuation time,the smoke after the transformation has been kept above 5 m from the ground.The temperature at the characteristic height of the human eye is reduced by 3℃,the temperature of the building ceiling is reduced by 20℃,and the CO concentration at the minimum clear height can be reduced by 0.6 PPM.The reformed smoke control system scheme is more safe and reliable.
High and large spaceSmoke control and extraction systemNumerical simulationsmoke diffusionRenovation effect
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