Use and installation of dry filter _ system Professional

Original title: Use and installation of drying filter In the refrigerant system, many harmful substances will enter the pipeline through various ways, and the common ones are as follows: 1. Production or maintenance process: At this time, the refrigerant system will be open to the outside, regardless of the length of time, there will be moisture, dust into the system pipeline, in the welding process, if there is no nitrogen protection, there may be copper oxygen film, or even welding slag; 2. Filling refrigerant or refrigerant oil: If there are many solid impurities and moisture in these things, they will be brought into the system and corrode the metal parts in the system; 3. In the operation of the refrigeration system: In the operation,jacketed glass reactor, when the refrigerant contains water, it will hydrolyze to produce acidic substances, which will corrode the metal. The mixture of refrigerant and lubricating oil can dissolve copper and bring it to the compressor to form a copper film on its metal surface, thus affecting the operation of the compressor. 4. Refrigerant oil: When the temperature is low to a certain temperature, the refrigerant oil will precipitate stone toad,thin film distillation, and the POE oil used for environmental protection refrigerant has strong hygroscopicity, so it is easier to hydrolyze acidic characteristics. The existence of the above substances will seriously threaten or destroy the performance of the moving parts in the system and the cylinders and refrigeration systems that need compressed gas, so they should be removed in time. Expand the full text The materials that play a role in the dry filter mainly include: 1. Metal filter screen: filter large solid particles (mainly used in small and medium-sized systems that are not sensitive to moisture, such as R22 and mineral oil). 2. Polyester filter screen: filter tiny particles. 3. Glass wool: filter tiny particles. 4. Molecular sieve: It filters large particles of solid impurities, mainly absorbs water, which is 3-4 times that of other substances, and can also absorb acidic substances nearby. 5. Activated alumina: absorbs water, mainly acidic substances. 6. Activated carbon: It absorbs paraffin, but because the refrigerant oil will precipitate paraffin only when the temperature is below -35 degrees, nutsche filter dryer ,50l  there are some special installation. In practical application, there are the following common designs: 1. Only installed on the refrigeration cycle; 2. Use four one-way valves to set the reservoir,wiped film distillation, drying filter and expansion valve on the common pipeline, then refrigeration and heating can be used; 3. Two one-way valves and two drying filters are used to work in the refrigeration and heating cycle respectively; 4. Use two-way drying filter. In addition to the drying and filtering work of the normal refrigeration system, the drying filter also has an important function of cleaning the system after the compressor is burned down. Return to Sohu to see more Responsible Editor:. toptiontech.com