Equipment and method for recycling freon in refrigerators

A technology of freon and refrigerator, which is applied in the field of recycling freon in refrigerators, can solve the problems of high refrigerant prices, achieve excellent environmental and social benefits, ensure safety, and achieve the effect of convenient and efficient recycling

Inactive Publication Date: 2015-04-08
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Equipment and method for recycling freon in refrigerators

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Embodiment Construction

[0028] Attached below picture The present invention is described in further detail with embodiment:

[0029] see picture 1. The equipment for recovering Freon in the refrigerator of the present invention includes a condensation separator 5, the side of the condensation separator 5 is provided with a gaseous Freon inlet and a liquid nitrogen inlet; the top of the condensation separator 5 is provided with a nitrogen outlet, and the bottom is provided with a nitrogen outlet for recycling liquid The liquid Freon outlet of Freon; the condensation separator 5 is provided with a heat exchange coil 4, the inlet of the heat exchange coil 4 is connected with the external liquid nitrogen source through the liquid nitrogen inlet, and the outlet is exchanged with the refrigerator 1 through a cold preservation pipeline 3 One end of the tube 2 is connected, and the other end of the heat exchange tube 2 is connected with the gaseous freon inlet; the nitrogen gas is discharged from another ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B43/00
CPCF25B43/00
Inventor 王嘉文袁征航
Owner NORTHWESTERN POLYTECHNICAL UNIV
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