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What filter are put in the aquarium filter? Generally, filter cotton and ceramic rings are placed,If conditions permit: filter cotton,Ceramic ring,It is used in the water as a whole.Submersible Pumps and filter cotton (often replaced by sponges) are installed in one body,Some brands also install heaters in them,Become a multi-purpose fish farming equipment.When working,The water is sucked into the filter in multiple directions,The filtered water is returned to the water tank by another way.This filter is popular with beginners because of its low price,But from the effect of use,It is only suitable for medium and small aquariums with small fish density and low requirements for water flow and filtration,The Professional 'Fishman' uses the built-in filter (especially the filter with heating function) for seedling raising and temporary water tank,The effect is very good.The biggest disadvantage of this device is that when it stops working,There will be a lot of dirt attached to the filter cotton flowing back in
Structure and working principle of drying filter There are two kinds of drying filters, vertical and horizontal, and the internal structure is basically the same. The horizontal drying filter is shown in Figure 4-49. The inside is equipped with active alumina, calcium chloride without water or silica gel to absorb moisture in the refrigerant. The inlet and outlet of the drying filter are equipped with a filter screen at both ends to remove mechanical impurities in the refrigeration system and prevent blockage.\ 'Role = \' figureFigure 4-48 structure of ammonia filter1. liquid inlet 2. liquid inlet 3. end cap\ 'Role = \' figureFigure 4-49 structure of horizontal drying filter1. end cap 2. filter screen 3. liquid outlet 4. desiccant 5. liquid inletThe drying filter is used in the fluorine refrigeration system (ammonia refrigeration system generally does not install the drying filter), which is set on the liquid tube track before the throttle valve.I. Structure of drying filter: Figure 1 is the structure
