避难硐室通风模拟及有毒有害气体控制技术

Ventilation Simulation and Toxic and Harmful Gas Control Technology of Refuge Chamber

为确定避难硐室的合理供风量,采用Fluent软件对硐室进行模拟计算,并与实验室数据相对比。结果发现,随着供风量的增大,CO_(2)浓度和环境温度呈下降趋势,由于出口排风能力有限,新鲜风流无法充分发挥作用,通风效率和余热排放效率有所下降。最终确定供风量调至400 m^(3)/h并配合局部通风,可满足人员安全避险和热舒适性的要求。

In order to determine the reasonable air supply volume of the refuge chamber,the Fluent software was used to simulate the chamber and compared with the laboratory data.The results showed that the CO_(2) concentration and ambient temperature decreased with the increase of air supply.Due to the limited exhaust capacity of the outlet,the fresh air flow could not play a full role,and the ventilation efficiency and waste heat emission efficiency decreased.Finally,it is determined that the air supply volume can be adjusted to 400 m^(3)/ h and combined with local ventilation,which can meet the requirements of safety and thermal comfort of personnel.