Air conditioner refrigerant circulation abnormity determining method and air conditioner

A refrigerant circulation and determination method technology, which is applied in the direction of heating mode, space heating and ventilation, heating and ventilation control system, etc., can solve the problems of inability to judge the cause of refrigerant abnormality, unfavorable abnormal fault handling, etc.

Active Publication Date: 2021-04-06
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for determining the abnormality of the refrigerant cycle of an air conditioner and an air conditioner, so as to solve the

Method used

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  • Air conditioner refrigerant circulation abnormity determining method and air conditioner
  • Air conditioner refrigerant circulation abnormity determining method and air conditioner
  • Air conditioner refrigerant circulation abnormity determining method and air conditioner

Examples

Experimental program
Comparison scheme
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Embodiment approach

[0064] As a preferred implementation, the backup refrigerant input device is realized by the following structure:

[0065] It includes a spare refrigerant storage container 121 for storing spare refrigerant to be added to the refrigerant circulation system of the air conditioner, which has a spare refrigerant injection port (not marked in the figure) and a spare refrigerant output port (not marked in the figure) label).

[0066] The second throttling component 122 is formed in the first connection pipeline 131 between the backup refrigerant output end of the backup refrigerant storage container 121 and the refrigerant circulation system of the air conditioner. One end of the first connection pipeline 131 is connected to the standby refrigerant storage container through the second throttling component 122 , and the other end is connected to the pipeline between the evaporator 115 and the liquid receiver 116 . The second throttling component 122 may be an electronic expansion v...

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Abstract

The invention discloses an air conditioner refrigerant circulation abnormality determining method and an air conditioner. The method comprises the steps: executing the following processes when the exhaust temperature of a compressor in the air conditioner is greater than an exhaust temperature threshold value: obtaining the difference between the outlet temperature and the inlet temperature of an evaporator in the air conditioner, and enabling the difference to serve as the inlet and outlet temperature difference of the evaporator; when the inlet and outlet temperature difference is larger than an inlet and outlet temperature difference threshold value, adding a standby refrigerant into a refrigerant circulation system of the air conditioner; judging whether the change value of the exhaust temperature is greater than an exhaust temperature change threshold value or not and whether the change value of the inlet and outlet temperature difference is greater than an inlet and outlet temperature difference change threshold value or not; and judging whether the refrigerant circulation abnormity condition is that the system lacks refrigerant or the system is blocked by the refrigerant according to a judgment result. By applying the air conditioner refrigerant circulation abnormity determining method and the air conditioner, the technical problem that in the prior art, the abnormal reason of the refrigerant cannot be further judged, so that effective and timely abnormal fault processing is not facilitated can be solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to the air conditioner technology, and more specifically relates to a method for determining the abnormality of the refrigerant cycle of the air conditioner and the air conditioner. Background technique [0002] In the cooling or heating mode, the air conditioner absorbs or releases heat in the room through the circulation of the refrigerant to adjust the indoor air temperature. Take the cooling mode of the air conditioner as an example. During the cooling operation, the refrigerant is compressed by the compressor into a high-temperature and high-pressure gaseous refrigerant, which is discharged from the compressor exhaust port, and then enters the outdoor condenser through the four-way reversing valve. In the outdoor unit, the heat of the refrigerant in the condenser is taken away by the circulating air of the fan in the outdoor unit, and the refrigerant conden...

Claims

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Application Information

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IPC IPC(8): F24F11/32F24F11/38F24F11/64F24F11/84F24F11/86F24F11/871F24F11/88F24F110/12F24F140/20
CPCF24F11/32F24F11/38F24F11/64F24F11/84F24F11/86F24F11/871F24F11/88F24F2110/12F24F2140/20
Inventor 随亚宾马韵华葛龙岭司跃元杨坤任保飞王贺
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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