The cartridge filter has the advantages of small volume, high efficiency, low investment and easy maintenance. However, due to its small equipment capacity, it is difficult to combine into large air volume equipment, low filtering wind speed and narrow application range, it is only used in grain, welding and other industries, so it has not been widely promoted for many years. In recent years, with the continuous development of new technology and new materials, the structure and filter material of the dust remover have been improved, so that the filter cartridge dust remover is widely used in cement, steel, electric power, food, metallurgy, chemical industry and other industrial fields, and the overall capacity has increased several times. It has become a large-scale dust remover with filter area > 2000m2 (gb6719-86), which is a solution to the problem of traditional dust remover collecting ultra-fine dust Compared with the existing bag type and electrostatic precipitators in the market, it has the characteristics of large effective filtering area, low pressure difference, low emission, small volume and long service life, which has become a new development direction of industrial precipitators

Based on the above characteristics, the leakage detection requirements of the cartridge filter are basically the same as the conventional leakage detection, but there are differences in the calculation of the filtration area, the amount of powder, the location of the leakage point and so on.