Discussion on negative pressure value of radwaste building

In order to reduce the uncontrollable emission of radioactive materials，keeps the ventilation system of the radwaste building under negative pressure during routine operation. Analyses three influence factors of basal negative pressure, outdoor wind pressure and stack effect pressure, and presents a reasonable calculation method. Combined with an engineering practice, calculates a reasonable negative pressure value of radwaste building under the combination of three factors, and provides design suggestions.