Ventilation design of long-distance air supply transfer stations in underground spaces

In view of the problems of uneven resistance and reduced air volume caused by many branches in the air supply system, the air supply mode of setting transfer station is proposed. This paper takes a rectangular air supply transfer station as an example and uses a combination of simulation and experimental methods to study the air distribution characteristics and design parameters of the air supply transfer station. The results show that the air supply transfer station can reduce the flow deviation at the most unfavorable outlet of the system from 124.01% to 33.14%. The number of outlets of the air supply transfer station has a great influence on its resistance and flow uniformity. On this basis, the design method of the air supply transfer station is given.