Methodological Guidelines for Prevention of Destruction of Parallel Filter Cartridges Located in One Vessel at Maximum Pressure Drop

Abstract

Technical literature lacks scientific foundations for prevention of destruction of parallel filter cartridges within one vessel in gas purification devices at maximum pressure drop. In order to prevent filter net damage caused by solid particles, which can be found in the raw (non-purified) gas stream at the inlet to the gas purification device, we have developed principles and technical solutions for installation of a protective plate with perforated holes, the size of which excludes entry of debris capable of destroying the outer surface of the filter net. In order to prevent the destruction of fully-clogged filter net from the impact occurring as the result of pressure drop in the filter cartridge, we have developed solutions for transferring gas pressure from the clogged net to the supporting rectangular plate perforated with openings. An equation is proposed for finding the maximum opening diameter in rectangular support plates, which prevent damage to the clogged filter mats adjacent to them in the event of an increase in the pressure drop to the maximum value in the cartridge.