Let us Share Advantages of Ceiling Filter Housing
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Source：http://www.hefilter.comStartTime：2015-05-14Hits：
(1) The carrying dust amount of ceiling filter is large and under the normal condition the equipment use is 15-35 kg/m3.
(2) The filter material is durable and its using life can often reach more than 20 years.
(3) The filtering speed can usually keep 40 m/h and the highest can amount to 60 m/h.
(4) Water consumption of ceiling filter in the process of reverse wash equipment is less than 1%-2% of the general equipment consumption.
(5) The whole area of ceiling filter is small. With special structural design, installation area of ceiling filter is the 1/3 of other equipment.
(6) High filtration precision is the common requirements for filter devices now. And for the suspended solids in the water, the clearance of ceiling filter needs to be above 95%.
The characteristics of the Ceiling filter filtration efficiency, resistance, wind speed and air volume and penetration rate are our evaluation criteria for the device. We have confidence for our products because these are always advantages of ceiling filter housing. In the situations where conditions are permitted, we should as far as possible choose ceiling filter with high efficiency, low resistance and great filtering capacitance, large amount of dust, moderate wind speed, easy manufacturing processing, large air volume, easy installation and low price. This is the ceiling filter selection when we are considering one-time investment and secondary investment which can effect comparing analysis of the economy needs.
For some kind of gas, the maximum adsorption capacity of activated ceiling filter is also what we should think about. For different materials or different gas, adsorption capacity of ceiling filter is different. Air flows through the activated carbon layer, the time it spends refers to the stranded time. The longer residence time will make more full adsorption. To keep enough residence time, carbon layer should be thick enough and filtration velocity cannot be too high. New Activated Carbon Filter adsorption efficiency is high, but the efficiency in use is declining. When ceiling filter downstream concentration is near the allowed range, the filter will scrap. And using time before scrap is the product life, we also called it ‘through time'. Generally speaking, large molecular weight or high boiling point of gas's adsorption is easy. Volatile organic gas adsorption is easier than inorganic small molecule. Chemical adsorption is stronger than physical adsorption selectivity. Activated carbon ceiling filter after chemical impregnation can increase specific gas adsorption ability.
Of cause, advantages of ceiling filter housing don't mean the device is perfect. Filter only guarantees to tackle air microorganism like tackling ordinary particles. To restrict the microbial reproduction in the ceiling filter, Filter should not contain nutrients. And filtering place should not be too wet. Most of the time, the filter is deposited in the state of operation because it is a good place to shelter.
