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How Does The Air Filter Allow Air To Enter The Deflector?

How Does The Air Filter Allow Air To Enter The Deflector?

Nov 23, 2018

  The compressed air flowing in from the inlet of the air filter is introduced into the deflector. The deflector has evenly distributed helical blades like fan blades, forcing the high-speed flowing compressed air to rotate strongly along the tangential direction of the teeth. The liquid water in the air and the large impurities are separated by strong centrifugal force and flow to the bottom of the cup. The liquid water oil and the compressed air of the larger impurities are removed, and further filtered through the filter element to remove minute solid particles, and then the clean compressed air is discharged from the outlet. The umbrella-shaped flaps divide the water cup into upper and lower parts, and the lower part maintains the pressure static zone, which prevents the high-speed rotating airflow from sucking up the water and oil at the bottom of the cup. The water that collects at the bottom of the cup is drained from the drain valve. The air filter must be installed with the vertical cup down. The diameter of the upper orifice is too large, and the required float volume must also be large, which will increase the structural size of the water cup; if the diameter is too small, it will be difficult to manufacture during injection molding. In general, the diameter of the upper orifice is 0.8 to 1.5 mm.


   The water filter cup is typically made of a clear polycarbonate (PC) material for easy viewing of the water level in the cup. The thickness of the water cup should be greater than 3 mm, and the thicker the thickness of the service, the greater the pressure. Since the PC is fragile, a metal protective cover is usually added when it is used on a larger filter. When the protective cover is added, the protective cover should support the bottom of the cup and subject the protective cover to the main pressure. Metal cups can be used at high pressures, but a transparent scale indicates that the water level can be used with different filter elements depending on the filtration accuracy. The filter element has three types: metal mesh type, sintered type and fiber agglomerated type. The metal mesh type has low filtration precision and high fiber aggregation type filtration precision. Commonly used sintered types include copper bead sintering, resin sintering and ceramic sintering, among which copper bead sintering is common. Different filtration precisions can be achieved by selecting different copper bead diameters. Generally, there are 4 kinds of filtration precisions of 5 μm, 20 μm, 50 μm and 100 μm. After the free molecules are in contact with the activated carbon, they condense into a liquid in the micropores and remain in the micropores due to the capillary principle, and some are integrated with the material. Adsorption without a distinct chemical reaction is called physical adsorption. There are a large number of invisible micropores in the activated carbon material, which have a large adsorption area. In the live carbon of rice grain size, the area inside the micropores is more than ten square meters. After the free molecules are in contact with the activated carbon, they condense into a liquid in the micropores and remain in the micropores due to the capillary principle, and some are integrated with the material. Adsorption without a distinct chemical reaction is called physical adsorption. There are a large number of invisible micropores in the activated carbon material, which have a large adsorption area. In the live carbon of rice grain size, the area inside the micropores is more than ten square meters.