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Air conditioner defrosting method and air conditioner defrosting system for realizing continuous heating

A technology of air conditioner and defrost tube, which is applied in the field of air conditioner defrost system, which can solve the problems that continuous heating cannot be guaranteed, and achieve the effects of shortening defrost cycle, improving energy efficiency and prolonging heating time

Active Publication Date: 2020-06-19
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an air-conditioning defrosting method and an air-conditioning defrosting system for realizing continuous heating, so as to solve the problem in the prior art that continuous heating cannot be guaranteed when the unit is defrosting

Method used

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  • Air conditioner defrosting method and air conditioner defrosting system for realizing continuous heating
  • Air conditioner defrosting method and air conditioner defrosting system for realizing continuous heating
  • Air conditioner defrosting method and air conditioner defrosting system for realizing continuous heating

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Embodiment 1

[0039] figure 1 It is a structural schematic diagram of an air-conditioning defrosting system according to an embodiment of the present invention, such as figure 1 As shown, the air conditioning defrosting system includes:

[0040] The defrosting pipeline, its inlet end is located on the connecting pipeline between the four-way valve 4 and the indoor unit, and its outlet end is located on the liquid inlet main pipe of the outdoor unit;

[0041] The defrosting solenoid valve 5 is arranged on the defrosting pipeline, and is used to open when the air-conditioning defrosting system executes the defrosting operation, so as to realize the normal heating of the unit while defrosting.

[0042] Regarding how the defrosting electromagnetic valve 5 is triggered to open, the present embodiment presets defrosting conditions, and the defrosting electromagnetic valve 5 is used to open when the operating parameters of the defrosting system of the air conditioner meet the defrosting condition...

Embodiment 2

[0051] figure 2is a schematic structural diagram of a continuous heating system according to an embodiment of the present invention, preferably, figure 1 The air conditioner defrosting system shown can be applied as figure 2 Continuous heating system shown. Certainly, the present invention is not limited to this, figure 1 The air-conditioning defrosting system shown can also be applied to other air-conditioning units that require defrosting.

[0052] During the defrosting period of the unit, the heating electronic expansion valve 7 is closed, the subcooler solenoid valve 10 is closed, and the defrosting solenoid valve 5 is opened. Part of the high-temperature refrigerant discharged from the compressor 1 enters the indoor unit after passing through the four-way valve 4 to realize normal heating of the indoor unit. The refrigerant coming out of the indoor unit passes through the electronic expansion valve 9 of the subcooler and then enters the electric heating device 14 of...

Embodiment 3

[0054] image 3 It is a flowchart of an air-conditioning defrosting method for realizing continuous heating according to an embodiment of the present invention. This method can be applied to the air-conditioning defrosting system introduced above, such as image 3 As shown, the method includes the following steps:

[0055] Step S301, monitoring the operating parameters of the unit during heating operation; the operating parameters include: defrosting temperature and system low pressure;

[0056] Step S302, when the operating parameters meet the defrosting conditions, control the defrosting electromagnetic valve on the defrosting pipeline to open, so as to realize the normal heating of the unit and simultaneously defrosting.

[0057] It should be noted that while controlling the opening of the defrosting solenoid valve on the defrosting pipeline, the heating electronic expansion valve of the control unit is closed, and the subcooler solenoid valve is closed, so that the high-t...

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Abstract

The invention discloses an air conditioner defrosting method and air conditioner defrosting system for realizing continuous heating. The air conditioner defrosting system comprises a defrosting pipeline and a defrosting electromagnetic valve; the inlet end of the defrosting pipeline is located on a connecting pipeline of a four-way valve and an indoor unit, and the outlet end of the defrosting pipeline is located on a liquid inlet main pipe of an outdoor unit; and the defrosting electromagnetic valve is arranged on the defrosting pipeline and is used for being opened when the air conditioner defrosting system executes defrosting operation, so that defrosting is performed while normal heating of a unit is achieved. According to the air conditioner defrosting system, the defrosting pipelineis additionally arranged in a conventional system and used for executing defrosting operation when the unit needs to be defrosted, and meanwhile continuous heating of the unit is achieved, so that thedefrosting period is shortened, the unit heating time is prolonged, and the unit energy efficiency is improved.

Description

technical field [0001] The invention relates to the field of unit technology, in particular to an air-conditioning defrosting method and an air-conditioning defrosting system for realizing continuous heating. Background technique [0002] During the heating operation of the air conditioner, the outdoor heat exchanger acts as an evaporator, and the evaporation temperature of the system is low. When there is a certain humidity outside the outdoor, the outdoor heat exchanger frosts. After the heat exchanger is frosted, the heat exchange capacity of the system decreases, and in severe cases, it will cause cold air blowing on the indoor side, which seriously affects the user experience and causes user complaints. [0003] When the existing air conditioner is in defrosting operation, it generally switches the cooling mode, the four-way valve is reversed, the outdoor side heat exchanger is used as the condenser, and the indoor side heat exchanger is used as the evaporator, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/02F25B49/02F24F11/42F24F11/64F24F11/61
CPCF25B47/02F25B49/02F24F11/42F24F11/61F24F11/64
Inventor 金孟孟李立民李华杰朱世强
Owner GREE ELECTRIC APPLIANCES INC
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