Refrigerant recovery device

Abstract

The invention discloses a refrigerant recovery device. The outer wall of a liquid storage tank 1 is of a double-layer structure; a vacuum thermal insulation layer is arranged between the two layers; aliquid inlet pipe 2 extends into the bottom of the interior of the liquid storage tank 1; an air outlet pipe 4 extends into the top of the liquid storage tank 1; a gas-liquid separation device 3 is arranged on the front end of the air outlet pipe 4; the density of a floating ball in the gas-liquid separation device 3 is greater than that of a gaseous refrigerant and smaller than that of liquid refrigerant; a vacuum-pumping device 8 is a piston type air extraction cylinder; an air inlet of the vacuum-pumping device 8 is connected to an air outlet 7 of a liquid storage device through an air pipe; and an air inlet 7 of the liquid storage device is connected to the bottom of a liquid storage tank 9 of external equipment through an air pipe. Refrigerant recovered by the refrigerant recovery device can be reutilized, thus, the environmental pollution is greatly reduced, the wasting of resources is greatly reduced, and obvious economic benefits are obtained.

Description

technical field [0001] The invention relates to a device for recovering refrigerant. Background technique [0002] Compression refrigerators need to be filled with a certain amount of refrigerant in their sealed refrigeration system. The amount of refrigerant used is large and the price is expensive. The pressure of the refrigerant inside the refrigerator is greater than the external atmospheric pressure. Agents usually leak in the outside air, which not only pollutes the environment, but also causes economic waste. The currently widely used method of recovering refrigerant is to use an external compressor to press the refrigerant into a closed container. The disadvantage of this method is that the recovery efficiency is low, the recovery amount is small, and the operation is complicated. To sum up, how to use the new device to efficiently recover the refrigerant has become a top priority. Contents of the invention [0003] The technical problem to be solved by the prese...

AI Technical Summary

Problems solved by technology

[0002] Compression refrigerators need to be filled with a certain amount of refrigerant in their sealed refrigeration system. The amount of refrigerant used is large and the price is expensive. The pressure of the refrigerant inside the refrigerator is greater than the external atmospheric pressure. Agents usually leak into the outside air, which not only pollutes the environment, but also causes economic waste.

The currently widely used method of recovering refrigerant is to use an external compressor to press the refrigerant into a closed container. The disadvantage of this method is that the recovery efficiency is low, the recovery amount is small, and the operation is complicated.

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