The main points of the design of sintered mesh filter element are: high particle blocking efficiency; low resistance when receiving air flow; large dust holding capacity. At the same time, the measurement accuracy of the measurement parameters is specified.
The interception efficiency design is based on the measurement of the dust interception weight efficiency of the original filter material. This is related to the fiber properties of the filter material. Plant fibers and polyester fibers have their own particle blocking capabilities. Blocking is not simply a pore size blocking. It contains various adsorption effects. Glass fiber is obviously better than plant fiber blocking particles. This is not because of its fine fiber and small mesh, but its strong adsorption capacity for particles.
Cut the original sintered mesh filter material into a 113mm (100cm2) test piece, and then conduct an efficiency test on it. The conditions are: the air flow rate is 20m/min; the test ash (AC) concentration in the air is 18g/cm2; the pressure difference reaches the limit of 1000Pa. After the test is completed, evaluate the filtration efficiency of the filter material. Because the sintered mesh filter element for automotive (industrial use) intercepts particles is evaluated by weight efficiency, weight efficiency is used as the nominal filter efficiency. The particle blocking efficiency of the sintered mesh filter element (component) is designed for the filter element by taking this parameter of the filter material.
