Filtering device for refrigerating fluid of air conditioner

Abstract

The invention relates to the technical field of the refrigeration industry, in particular to a filtering device for refrigerating fluid of an air conditioner. The filtering device comprises two copper tubes and a filtering tube body, wherein one ends of the two copper tubes are respectively nested in connecting cavities in two ends of the filtering tube body closely; fixing rings which are matched with ends of the filtering tube body are respectively arranged at one ends of the two copper tubes fixedly; an end surface of each fixing ring is abutted to the corresponding end of the filtering tube body; a pressing tube which is matched with the corresponding fixing ring is nested in the corresponding copper tube; after the fixing rings are nested in the inner cavities of the pressing tubes, the pressing tubes are in threaded connection with one end of the filtering tube body; a filtering screen and an activated carbon layer are sequentially arranged in the filtering tube body along the flowing direction of the refrigerating fluid; and the cross section of the filtering screen is conical. When the filtering device is used, the filtering area of the filtering screen can be increased, the shortcoming that the existing filtering screen filters materials difficultly is overcome, impurities are prevented from blocking meshes of the filtering screen, a user can conveniently replace the filtering tube body, the filtering efficiency and the filtering quality are guaranteed, and the energy is saved. The filtering device for the refrigerating fluid of the air conditioner has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.

Description

technical field [0001] The invention relates to the technical field of the refrigeration industry, in particular to an air-conditioning refrigerant filtering device. Background technique [0002] Refrigerants, also known as refrigerants, are commonly known as refrigerants in some areas in the south. It is a working substance that circulates continuously in the refrigeration system and achieves refrigeration through its own state changes. The refrigerant absorbs the heat of the cooled medium (water or air, etc.) in the evaporator and evaporates, and transfers the heat to the surrounding air or water in the condenser to condense. [0003] Refrigerants usually contain impurities, so a filter device is required to filter the impurities in the refrigerant to prevent the refrigeration system from being blocked and to ensure the smooth progress of the entire refrigeration system. At present, the pipeline filters used in air conditioners generally use filter screens. The filter sc...

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Problems solved by technology

[0003] Refrigerants usually contain impurities, so a filter device is required to filter the impurities in the refrigerant to prevent the refrigeration system from being blocked and to ensure the smooth progress of the entire refrigeration system. At present, the pipeline filters used in air conditioners generally use filter screens. The filter screen is set at the junction of the two copper pipes. Although it can remove impurities to a certain extent, the area of ​​the filter screen is small. After a period of use, the impurities will easily block the mesh of the filter screen, increasing the filtration resistance, making the filtration efficiency low and wasting energy. , and the filter is generally fixed, and usually cannot be removed for cleaning and maintenance. If the filter needs to be replaced, the maintenance cost will be very high

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