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What is a drying filter? There are two kinds of drying filters, vertical and horizontal,The internal structure is basically the same.Horizontal drying filter as shown in Figure 4-49 shown.It is equipped with activated alumina, calcium chloride or silica gel,Used to absorb moisture in the refrigerant.The inlet and outlet of the drying filter are equipped with a filter screen at both ends,Used to remove mechanical impurities in the refrigeration system,Prevent blockage.Figure 4-1.Liquid outlet 2.Liquid inlet 3.Figure 4-1.End cap 2.Filter 3.Liquid outlet 4.Desiccant 5.The drying filter is used in the fluorine refrigeration system (the ammonia refrigeration system generally does not install the drying filter ),It is set on the fluid tube track before the throttle valve.Filter double-cylinder filter Overview: The filter is an indispensable device on the conveying media pipeline, usually installed at the inlet end of the pressure reducing valve, pressure relief valve, fixed water level valve or other equipm
What does FFU mean in HVAC? FFU is all called Fan Filter Unit in English ),The Chinese language is fan filter unit.It contains two elements: 1.Fan can provide power,2.Filter (filter material) can filter air impurities such as particulate matter.The FFU fan filter unit can be used in modular connection,Usually as the end of the overall ventilation and filtration system,FFU is widely used in clean rooms, clean work tables, clean production lines, assembled clean rooms, etc.Short for FFU,It is all called Fan Filter Units, which means \ 'Fan Filter unit (unit) \' in Chinese )\'.That is, the end purification equipment that combines the fan and filter (High Efficiency filter (HEPA) or ultra-high efficiency filter (ULPA) to form its own power supply.To be exact, it is a modular end Air Supply device with its own power and filtration effect.The fan sucks air from the top of the FFU and filters it through HEPA,The filtered clean air is 0 on the whole air surface.The wind speed of 45 m/s ± 20% is evenly sent out.
