Air conditioner and recycling method for air conditioner refrigerant

A technology for refrigerant recovery and air conditioners, applied in air conditioning systems, refrigerators, heating methods, etc., can solve the problems of inflammability and explosion, reduce the safety factor of air conditioners, and hidden dangers of air conditioners, and achieve the effect of improving safety.

Active Publication Date: 2015-07-01
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the flammable and explosive properties of the refrigerant R290, there are certain safety hazards in the air conditioner.
Especially in the shutdown state, when there is refrigerant R290 inside the indoor unit, the safety factor of the air conditioner is reduced, thus threatening the safety of the indoor environment

Method used

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  • Air conditioner and recycling method for air conditioner refrigerant
  • Air conditioner and recycling method for air conditioner refrigerant
  • Air conditioner and recycling method for air conditioner refrigerant

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0062] The air conditioner 100 according to the embodiment of the present invention is a heating and cooling type inverter air conditioner, and in this embodiment, the first control device 80 is a control valve other than the electronic expansion valve.

[0063] When the air conditioner 100 is in the cooling state, both the first circulation channel a and the second circulation channel b are in a conduction state, and the circulation system of the air conditioner 100 is equivalent to that of an ordinary air conditioner 100 . When the air conditioner 100 receives the refrigerant recovery command or the air conditioner 100 defaults to recover the refrigerant command, the compressor 10 keeps running, the four-way valve 20 does not operate, the first control device 80 is closed, and the flow path in the first circulation channel a is blocked. , cutting off the conduction between the outdoor unit and the indoor unit at the high-voltage side, the refrigerant cannot flow out of the co...

no. 2 example

[0070]The air conditioner 100 according to the embodiment of the present invention is a heating and cooling type inverter air conditioner, and the first control device 80 is an electronic expansion valve.

[0071] When the air conditioner 100 is in the cooling state, the second circulation channel b is in a conduction state, and the circulation system of the air conditioner 100 is equivalent to that of a common air conditioner 100 . When the air conditioner 100 receives the refrigerant recovery instruction or the air conditioner 100 defaults to the refrigerant recovery instruction, the compressor 10 keeps running, the four-way valve 20 does not operate, and the electronic expansion valve reverses to the closed state, blocking the first circulation channel a The flow path between the outdoor unit and the indoor unit at the high pressure side is cut off, so that the refrigerant cannot flow out of the condenser 30 and is stored in the outdoor unit. The compressor 10 runs for a fi...

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Abstract

The invention discloses an air conditioner and a recycling method for air conditioner refrigerant. The air conditioner comprises a compressor, a four-way valve, a condenser, a throttling element, an evaporator, a high-pressure stop valve, a low-pressure stop valve, a first control device, a second control device and a controller, wherein the high-pressure stop valve and the low-pressure stop valve are arranged on a first circulating channel and a second circulating channel in series respectively, the first control device is arranged on the first circulating channel in series in order to open or close the first circulating channel, and the second control device is arranged on the second circulating channel in series in order to open or close the second circulating channel. According to the air conditioner and the recycling method for the air conditioner refrigerant, due to the fact that the first control device and the second control device are arranged, when the refrigerant needs to be recycled, by controlling the actions of the first control device and the second control device, the purpose of automatically recycling the refrigerant in the air conditioner into an outdoor unit is achieved, it is guaranteed that the refrigerant does not exist in an indoor unit, and therefore the safety of indoor environment is improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an air conditioner and a refrigerant recovery method for the air conditioner. Background technique [0002] In accordance with the requirements of the Montreal Protocol, the currently used refrigerant R22\R410A will be phased out, and the refrigerant R290 will be widely used as one of the alternative refrigerants. However, due to the flammable and explosive characteristics of the refrigerant R290, there are certain safety hazards in the air conditioner. Especially in the shutdown state, when there is refrigerant R290 inside the indoor unit, the safety factor of the air conditioner is reduced, thereby threatening the safety of the indoor environment. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. [0004] Therefore, an object of the present invention is to provide an air c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B41/04F25B41/24
CPCF24F1/0003F24F11/70F24F11/83F24F11/84F25B41/37F25B41/31F25B41/20
Inventor 韩宇
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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