Optimization of negative pressure and temperature control of HVAC system in radioactive waste building of a nuclear power plant

Based on the design documents of HVAC system of a radioactive waste building, expounds the adjustment and problem solving of negative pressure and temperature control in the process of system commissioning. Finds the existing problems while regulating the PID parameters of the system air valve and the delay of differential pressure interlocking trip during the commissioning process. According to the commissioning results, modifies the corresponding parameters in the design document and optimizes the design of the system.