Influence of different combinations of supply air filters on life of exhaust air filters in radioactive workshops

By establishing a particle concentration balance model for radioactive workshops, analyses the main influencing factors of the dust holding load of the purification filter of the exhaust system. Measures the filtration efficiency of six types of air filter combinations for particles in six size ranges, and calculates the filtration efficiency of each air filter combination for test dust and measured atmospheric dust particles with a particle size of ≥0.3 μm based on the measured efficiency. Analyses the influence of different air filter combinations in the air supply system of a nuclear power plant’s waste storage warehouse on the dust holding load and life of the exhaust system purification filter.