Self-adaptive performance test and analysis of branch fan air volume in dynamic distributed ventilation systems

Tests the self-adaptive branch fan performance in the dynamic distributed ventilation system for its stand-alone performance and system linkage adjustment. The results show that the self-adaptive branch fan has the ability to stabilize the branch air volume within a certain inlet pressure range, and the pressure range becomes narrow with the reduction of fan control gear. During system operation, the adjustment of the main fan and other branch fans has little effect on the change of air volume, showing better air volume self-adaptive pipe network characteristics and air volume anti-interference ability. Analyses the hydraulic operating characteristics of the branch fan in the dynamic distributed ventilation system, and proposes the performance characterization parameters and engineering design application methods of the self-adaptive branch fan.