A kind of equipment and method for recovering freon in refrigerator

Abstract

The invention discloses a device and method for recovering freon, which comprises a condensation separator, and a gaseous freon inlet and a liquid nitrogen inlet are provided on the side of the condensing separator; a nitrogen outlet is provided on the top of the condensing separator, and a device for recovering liquid freon is provided at the bottom The outlet of the liquid freon; the condensation separator is equipped with a heat exchange coil, the inlet of the heat exchange coil is connected with the external liquid nitrogen source through the liquid nitrogen inlet, and the outlet is connected with one end of the heat exchange tube of the refrigerator through a cold preservation pipe. The other end of the heat pipe is connected with the gaseous freon inlet; the nitrogen is discharged from another cold-preservation pipe connected to the nitrogen outlet. The invention utilizes a physical cooling method, adopts non-polluting liquid nitrogen as a coolant, and implements recovery of Freon conveniently and efficiently. The advantages are small investment, simple process, high recovery rate, batch production of stereotyped equipment, large and efficient recovery of resources and reduction of Freon emissions, and excellent environmental and social benefits.

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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