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Control method of air-conditioning system, air-conditioning system and computer storage medium

An air-conditioning system and control method technology, applied in the fields of air-conditioning system control, air-conditioning systems, and computer storage media, can solve problems such as air-conditioning system failures, electronic expansion valve reset failures, etc., to improve stability, improve reliability, and avoid resets The effect of failure

Active Publication Date: 2020-07-17
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In related technologies, when the air conditioning system stops running, the electronic expansion valve in the air conditioning system will reset immediately, but when the electronic expansion valve is reset, the pressure difference between the front and back of the valve body will exceed the maximum operating pressure difference, which will cause the electronic expansion valve to reset failure, which in turn leads to failure of the air conditioning system

Method used

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  • Control method of air-conditioning system, air-conditioning system and computer storage medium
  • Control method of air-conditioning system, air-conditioning system and computer storage medium
  • Control method of air-conditioning system, air-conditioning system and computer storage medium

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Embodiment 1

[0048] Such as figure 1 As shown, the first aspect of the present invention provides a control method for an air-conditioning system. The air-conditioning system includes a compressor and an electronic expansion valve. The compressor and the electronic expansion valve are connected through pipelines. The control method includes:

[0049] Step S102: Obtain the system parameters of the air conditioning system and the pressure difference of the electronic expansion valve based on the stop of the compressor;

[0050] Step S104: Control the reset action of the electronic expansion valve according to the system parameters and the pressure difference of the electronic expansion valve.

[0051] In the control method of the air-conditioning system provided by the present invention, after the compressor stops running, the system parameters of the air-conditioning system and the pressure difference of the electronic expansion valve are first obtained, and then according to the obtained s...

Embodiment 2

[0055] Such as figure 2 , Figure 5 with Image 6 As shown, the control method of the air conditioning system provided by one embodiment of the present invention includes:

[0056] Step S202: Obtain the temperature of the condenser and the temperature of the evaporator of the air conditioning system, and the current opening degree of the electronic expansion valve based on the stop of the compressor;

[0057] Step S204: Determine the reference pressure difference of the electronic expansion valve according to the temperature of the condenser and the temperature of the evaporator;

[0058] Step S206: Determine the reference time corresponding to the reference pressure difference according to the reference pressure difference;

[0059] Step S208: According to the current opening degree of the electronic expansion valve, determine the correction coefficient corresponding to the current opening degree;

[0060] Step S210: Determine the delayed reset time of the electronic exp...

Embodiment 3

[0078] Such as image 3 , Figure 5 with Image 6 As shown, on the basis of the above-mentioned embodiment 1 and embodiment 2, the control method of the air-conditioning system includes:

[0079] Step S302: Obtain the temperature of the condenser and the temperature of the evaporator of the air conditioning system, and the current opening degree of the electronic expansion valve based on the stop of the compressor;

[0080] Step S304: Determine the reference pressure difference of the electronic expansion valve according to the temperature of the condenser and the temperature of the evaporator;

[0081] Step S306: Obtain a preset reference time corresponding to the preset differential pressure range according to the preset differential pressure range where the reference differential pressure is located; use the preset reference time as the reference time corresponding to the reference differential pressure;

[0082] Step S308: According to the preset opening range where the...

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Abstract

The invention provides a control method of an air-conditioning system, the air-conditioning system and a computer storage medium. The air-conditioning system comprises a compressor and an electronic expansion valve; and the compressor communicates with the electronic expansion valve through a pipeline. The control method of the air-conditioning system comprises the following steps: acquiring a system parameter of the air-conditioning system and pressure difference of the electronic expansion valve on the basis that the compressor stops operating; and according to the system parameter and the pressure difference of the electronic expansion valve, controlling reset action of the electronic expansion valve. According to the control method of the air-conditioning system provided by the invention, the system parameter and the pressure difference of the electronic expansion valve are acquired, and the reset action of the electronic expansion valve is controlled according to the system parameter and the pressure difference of the electronic expansion valve, so that delay reset of the electronic expansion valve is realized and reset failure of the electronic expansion valve caused by thatthe pressure difference of the valve body before and after exceeds the maximum action pressure difference is avoided, thereby improving the stability of the air-conditioning system.

Description

technical field [0001] The present invention relates to the technical field of air-conditioning equipment, and in particular, relates to a method for controlling an air-conditioning system, an air-conditioning system, and a computer storage medium. Background technique [0002] In related technologies, when the air conditioning system stops running, the electronic expansion valve in the air conditioning system will reset immediately, but when the electronic expansion valve is reset, the pressure difference between the front and back of the valve body will exceed the maximum operating pressure difference, which will cause the electronic expansion valve to reset Failure, which in turn leads to failure of the air conditioning system. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. [0004] To this end, the first aspect of the present invention proposes a control method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/61F24F11/84F25B41/06F24F140/12F24F140/20F25B41/31
CPCF24F11/64F24F11/61F24F11/84F24F2140/12F24F2140/20F25B2600/2513F25B2700/191F25B41/31Y02B30/70
Inventor 王威许永锋李宏伟吴孔祥王茹翰
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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