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How can I check the replacement intervals of my air filtration equipment?
How can I check the replacement intervals of my air filtration equipment?I. Some notes on air filter replacement, the important one is that when the resistance of the equipment reaches 2 - 3 times the initial resistance, it should be stopped immediately and replaced with a new air filter. So if there is no differential pressure table set up, what can we base on to make a judgment?1. Check the color of the filter material on the upper and lower air side of the equipment, if the color of the filter material becomes black, it means that it should be replaced in time; 2. You can touch the filter media on the air outlet side of the equipment with your hand, if you feel that there is more dust accumulation, you should also replace it; 3. Record the condition of each replacement of the air filter, and summarise the better cycle; 4. When the equipment has not reached the final resistance, if there is a significant drop in the pressure difference between the clean room and the adjacent room, then it is also possible that the resistance of the equipment is too large and should be prepared to replace; 5. If the clean room presents cleanliness can not reach the original demand, or present negative pressure should also be the same as the above situation, need to prepare to replace. II. If the air filter is used on the purification bench, you can choose the replacement time through the differential pressure table in the purification bench; if it is an FFU fan filter unit, the replacement cycle is decided through the prompt in the PLC control system. III. No matter what environment the air filter is installed in, we need to keep a detailed record of its running time so that we can use it as the basis for replacement afterward. IV. Under normal use, the service life of a high-efficiency air filter is generally more than one year; if the air filter is well protected, the service life can be up to two years or more, but of course, this is also based on the quality of the equipment to decide. |
