The outer shell of the filter drier is formed by a red copper tube, and the inlet and outlet interfaces at both ends have two types: the same diameter and different diameters. The inlet end is a thick metal mesh, and the outlet end is a fine metal mesh, which can effectively filter impurities. A molecular sieve with excellent hygroscopic properties is installed as a desiccant to absorb the moisture in the refrigerant, so as to ensure the smooth capillary tube and the normal operation of the refrigeration system. When the desiccant fails due to too much water absorption, it should be replaced in time.
Another filter. It is also the same as the filter drier, which is formed by the rolling process but only contains metal mesh without desiccant. It is installed on the relevant components or pipelines at the front end of the capillary tube of the refrigeration system, or at the inlet and outlet ends of the electronic expansion valve, to collect solid impurities in the refrigeration system, and lubricate oil, prevent the system, capillary tube and expansion valve from being blocked, and ensure the smooth flow of the pipeline system.
working principle:
The liquid flows into the filter from the inlet under a certain pressure, the impurities are retained by the filter medium in the filter, and the filtered liquid flows out from the outlet. When the filtration reaches a certain stage, the pressure difference between the inlet and the outlet increases, and the filter element needs to be back washed. At this time, the backwash valve is opened, and the hydraulic pressure flows from the bottom to the top of the backwash water inlet to flush, and the filter restores the filtering function. The filter element is a replaceable element. When the filter runs for a certain period of time, the filter element is removed and a new filter element is replaced to ensure the accuracy and efficiency of filtration.
Features
The filter drier mainly plays the role of filtering impurities. Generally speaking, the specifications of the dryer are determined according to the refrigeration system of the air conditioner, such as the diameter, inner diameter, and outer diameter, and the main components inside the air conditioner, such as filters, humidification tanks, temperature, and humidity sensors, air pressure switches, and Pressure control switch, water solenoid valve, drain valve, thermal expansion valve, filter drier, air conditioner outdoor fan, controller. Generally, the life of the air conditioner dryer in the computer room is 7-10 years. The most important thing is to choose the original manufacturer, don't worry about the quality, and the factory's quality management system and program documents should be perfect.
