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Selection of air filters for central air conditioning Under normal circumstances,At the last level, the air filter of the central air conditioner determines the degree of air purification,The upstream filters at all levels only play a protective role,It protects the lower wind end filter to extend its service life,Or protect the air conditioning system to ensure it works properly.Air conditioning design,The efficiency of the final central air-conditioning air filter should be first determined according to the user's cleaning requirements,Then,Select the filter that plays a protective role,If this filter is also protected,Then add a filter on its upper end.The filters that play a protective role are collectively referred to as 'pre-filters '.The efficiency of central air-conditioning air filters at all levels should be properly matched.If the efficiency specification of the adjacent two-stage filter is too different,Then the previous level does not play the role of the post-protection level;If the differ
What is the role of dryer filter? At present,Various forms of drying devices commonly used,There are certain features and shortcomings.How to choose and match the technical requirements suitable for the equipment and process of the unit,And good performance,Purification equipment of reliable quality,It is the key to the normal production.Therefore,Dpc reminder when selecting a dryer filter using a compressed air purification device,The following five aspects should be considered: 1. there are no special requirements for gas quality.Some production equipment and processes have no special requirements for gas quality.Such as mining, brick making, glass making machine, etc,Gas-liquid separator and buffer tank with demister and gas storage tank are available.Part of the oil and water mixture is separated by cyclone separation and filtration.2. dry dew point (atmospheric dew point) according to different drying dew point requirements is-15-20 ℃ (water content 0.9-1.5g/m3 ).Such as pneumatic components, cylinders,