Equipment and method for recycling freon in refrigerators

Abstract

The invention discloses equipment and a method for recycling freon. The equipment comprises a condensate separator, wherein a gas freon inlet and a liquid nitrogen inlet are formed in a side surface of the condensate separator; a nitrogen outlet is formed in the top of the condensate separator; a liquid freon outlet for recycling liquid freon is formed in the bottom of the condensate separator; a heat exchanging coiled tube is arranged in the condensate separator; an inlet of the heat exchanging coiled tube is connected with an external liquid nitrogen source through the liquid nitrogen inlet; an outlet of the heat exchanging coiled tube is connected with one end of a heat exchanging tube of a refrigerator through a cold-insulation pipe; the other end of the heat exchanging tube is connected with the gas freon inlet; and nitrogen is discharged outwards via a cold-insulation pipe connected to the nitrogen outlet. A physical cooling method is used, pollution-free liquid nitrogen serves as coolant, and the freon is recycled conveniently and efficiently. The equipment has the advantages that the investment is low, a technology is simple, the recovery rate is high, shaping equipment can be manufactured in batches, resources are efficiently recycled greatly, emission of the freon is reduced, and environmental and social benefits are excellent.

Description

technical field [0001] The invention belongs to the technical field of Freon recovery, and in particular relates to a device and method for recovering Freon in a refrigerator. Background technique [0002] Freon is widely used in household appliances, foam plastics, daily chemicals, automobiles, fire-fighting equipment and other fields, especially as a refrigerant in air conditioners and refrigerators. At present, there are approximately hundreds of millions of air conditioners in use across the country, and tens of millions of refrigerators. According to the statistics of relevant departments, only tens of millions of air conditioners and refrigerators are repaired and maintained every year, and nearly ten million units are scrapped at the same time. These discarded refrigerators and air-conditioning products emit tens of thousands of tons of Freon every year, and the harm is immeasurable. [0003] There are two main ways to solve the problem of Freon emissions: one is to...

AI Technical Summary

Problems solved by technology

However, old home appliances and other products using freon can only be gradually phased out with their replacement, and it will take a long time for freon to be replaced by new refrigerants due to the high price of new refrigerants and the need to redesign the system and other factors

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