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Refrigerant automatic recycling air conditioner system and control method thereof

An air-conditioning system and automatic recovery technology, applied in the direction of refrigerators, refrigerants, refrigeration components, etc., can solve the problems of affecting the use effect of air-conditioning, causing great social harm, and destroying the ozone layer, achieving simple structure, low cost, and avoiding experience differences. Effect

Inactive Publication Date: 2015-02-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the air-conditioning system breaks down and needs to be overhauled or repaired, technicians usually release the refrigerant in the air-conditioning system or put the air conditioner in an artificial forced operation state to carry out refrigerant recovery operations based on personal experience. Letting go of the refrigerant will cause waste and damage if it flows into the atmosphere. The ozone layer produces a greenhouse effect, which is extremely harmful to society; when artificially recycled, it will cause a lot of unnecessary damage to the air-conditioning system according to the experience of the operator, and affect the use of the air-conditioner after maintenance.

Method used

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  • Refrigerant automatic recycling air conditioner system and control method thereof
  • Refrigerant automatic recycling air conditioner system and control method thereof
  • Refrigerant automatic recycling air conditioner system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see figure 1 , is the air-conditioning system with automatic refrigerant recovery provided in Embodiment 1 of the present invention. The refrigerant automatic recovery air conditioning system mainly consists of a compressor 1, a four-way valve 21, an outdoor heat exchanger 31, an indoor heat exchanger (not shown in the figure) and a throttling component 41 connected through refrigerant pipelines. The refrigerant circulation circuit and the controller (not shown in the figure) that control the operation of the air conditioning system; specifically, the D pipe port of the four-way valve 21 is connected to the exhaust port 11 of the compressor 1, and the C pipe port exchanges heat with the outdoor The device 31 is connected to the S nozzle and the low-pressure air return pipe 333 connected to the suction port 12 of the compressor 1, and the throttling part 41 is arranged on the high-pressure liquid pipeline 111 between the outdoor heat exchanger and the indoor heat exchang...

Embodiment 2

[0047] see figure 2 , the structure of the refrigerant automatic recovery air-conditioning system in this embodiment is different from that in Embodiment 1, mainly changing from two pipes to three pipes, so that the number of indoor heat exchangers can be increased, which includes a compressor 1, an outdoor Heat exchanger 31, a throttling component 41, the first four-way valve 21 and the second four-way valve 22; specifically, the C nozzle of the first four-way valve 21 is connected to the outdoor heat exchanger 31, The S pipe mouth is connected with the low-pressure gas line 222 connected to the second port 62 of the control valve 6, the E pipe mouth is connected with one end of the first capillary 91, and the other end of the first capillary 91 is connected with the second port of the control valve 6. The low-pressure air pipe line 222 of 62 is connected, and the D nozzle is connected with the exhaust port 11 of the compressor 1;

[0048] And the C nozzle of the second fou...

Embodiment 3

[0055] see figure 2 and image 3 In this embodiment, an outdoor heat exchanger is mainly added on the basis of Embodiment 2. Specifically, a third four-way valve 23, a second throttling member 42, and a third Two outdoor heat exchangers 32, the C nozzle of the third four-way valve 23 is connected to the second outdoor heat exchanger 32, and the S nozzle is connected to the low-pressure air pipe pipeline 222 connected to the second port 62 of the control valve 6 Connection, the E nozzle is connected to one end of the third capillary 93, and the other end of the third capillary 93 is connected to the low-pressure gas line 222 connected to the second port 62 of the control valve 6, and the D nozzle is connected to the exhaust gas of the compressor 1. port 11; and the second throttling part 42 is set on the pipeline between the second outdoor heat exchanger 32 and the indoor heat exchanger, that is, the refrigerant coming out of the outdoor heat exchanger 31 is throttled by the ...

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Abstract

The invention provides a refrigerant automatic recycling air conditioner system and a control method of the refrigerant automatic recycling air conditioner system. The air conditioner system comprises a refrigerant circulating loop formed by connecting at least one compressor, at least one four-way valve, at least one outdoor heat exchanger, at least one throttling component and at least one indoor heat exchanger through a refrigerant pipeline, a control valve for opening or closing a low-pressure air pipeline connected with an indoor unit and a pressure sensor for detecting low pressure of the system; when the air conditioner system needs to recycle refrigerants, the air conditioner system is controlled to enter in the refrigerant automatic recycling mode; a controller of the system controls the air conditioner system to run, and controls the throttling components and the control valve to be opened and closed; the controller sends out corresponding motion instructions according to a low-pressure pressure signal, detected by the pressure sensor, of the system; the aim of automatically recycling refrigerants in the air conditioner system to an outdoor unit is achieved; therefore, the refrigerants in the system can be precisely recycled; waste is reduced, and the system is clean and environmentally friendly; the system damage caused by improper operation of refrigerant manual recycling can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning equipment, and more specifically relates to an air-conditioning system with automatic refrigerant recovery and a control method thereof. Background technique [0002] When the air-conditioning system breaks down and needs to be overhauled or repaired, technicians usually release the refrigerant in the air-conditioning system or put the air conditioner in an artificial forced operation state to carry out refrigerant recovery operations based on personal experience. Letting go of the refrigerant will cause waste and damage if it flows into the atmosphere. The ozone layer produces a greenhouse effect, which is extremely harmful to society; when artificially recycled, it will cause a lot of unnecessary damage to the air-conditioning system according to the difference in the experience of the operator, and affect the effect of the air-conditioner after maintenance. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/04F25B49/02F25B41/20F25B41/24F25B41/30
CPCF25B45/00F25B49/02F25B2345/002F25B2345/003
Inventor 熊美兵李根许永锋
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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