In the process of designing the filter cartridge, its outer diameter is larger than the inner diameter of the filter cartridge, which is more than 10mm. This is mainly because of the high and narrow space, which allows the particles to settle slowly on the outer layer of the filter cartridge. This makes the filter cartridge from The pollution is blocked evenly from top to bottom.
The size of the inner skeleton diameter of the filter cartridge is mainly determined by considering that the size of the oil hole should not affect the amount of filtered air, and at the same time, the effect of the size of the small hole on the strength of the skeleton should be taken into account. The total strength of the internal skeleton is very important First, we must consider that the differential pressure on the filter cartridge should be supported by the skeleton, so the smaller the diameter, the higher the strength.
The filter wrinkle tooth height should be selected between l0 ~ 50mm is the best, in the use of the process need to fully leave the pressure difference limit, after calculating the required filtration and accumulation, should increase the area 1 times. This is because dust pollution is unpredictable in consideration of practical work.
Synthetic fiber non-woven filter materials can be effectively divided into continuous fiber spunbonded polyester hot presses and short fiber spunbonded polyester hot presses according to its processing technology during the production process. When the surface of the filter material is treated in a waterproof manner, the infiltration angle of the filter material after the waterproof treatment should be greater than 90 degrees, and the dipping water level should not be lower than Class IV.
Cartridge filter oil anti-oil treatment conditions, the filter material to do oil treatment. Polyester nonwoven filters can withstand operating temperatures no lower than 120°C. For other special working conditions such as high temperature and humidity, the filter material structure selection should meet the application requirements