How to choose the type of medium efficiency combined air filter?
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Last Update: 2019-06-05
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Source: Internet
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Author: User
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The medium efficiency combined air filter is used in the central air conditioning ventilation system, pharmaceutical, hospital, electronics, food and other industrial purification The medium efficiency combined air filter can also be used as the front-end filter of the air filter to reduce the load of the air filter and extend its service life So how can we choose medium efficiency combined air filter? The following is a brief introduction of the matters to be paid attention to when purchasing the medium efficiency combined air filter: 1 The main control parameters selected for the product are rated air volume, filtering efficiency under rated air volume, initial resistance under rated air volume, dust capacity and overall dimension, etc 2 It shall be inspected according to the method specified in JG / t22-1999 test method for performance of air filter for general ventilation 3 The common filter materials of medium efficiency combined air filter are glass fiber, non-woven fabric, etc 4 The manufacturer shall provide the dust capacity of the filter 5 The initial resistance of medium efficiency combined air filter shall be ≤ 80pa In the design, the final resistance can be twice of the initial resistance as the calculated resistance of the filter 6 The initial resistance of the filter shall not exceed 10% of the resistance of the product sample After regeneration and cleaning of renewable or cleanable filter materials, the efficiency shall not be lower than 85% of the original index, and the resistance shall not be higher than 115% of the original index 7 The air filter shall meet the fire protection requirements, and the paint flash point of the air filter shall not be lower than 163 ℃ 8 Medium efficiency combined air filter should not be used independently, but should be combined with coarse efficiency air filter At the same time, we also need to pay attention to the installation environment of medium efficiency combined air filter The medium efficiency combined air filter shall be installed in the downwind side of the water spraying room and humidifier, and the corresponding effective measures shall be taken when it cannot be avoided
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