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An adjustment method and system for an air conditioner electronic expansion valve, and an air conditioner

A technology of electronic expansion valve and adjustment method, which is applied in the direction of space heating and ventilation, heating and ventilation control system, heating and ventilation safety system, etc. It can solve the problems that the adjustment process of electronic expansion valve is not continuous and the air conditioning system cannot run stably, etc. , to achieve the effect of continuous and smooth operation

Active Publication Date: 2019-02-26
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

At present, the method of adjusting the electronic expansion valve is to directly reach a certain opening degree of the electronic expansion valve when the exhaust gas temperature exceeds a certain value. Therefore, the adjustment process of the electronic expansion valve is not continuous, which may cause the air conditioning system to be unstable. run

Method used

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  • An adjustment method and system for an air conditioner electronic expansion valve, and an air conditioner
  • An adjustment method and system for an air conditioner electronic expansion valve, and an air conditioner
  • An adjustment method and system for an air conditioner electronic expansion valve, and an air conditioner

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Embodiment Construction

[0016] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0017] figure 1 A schematic flowchart of a method for adjusting an air-conditioning electronic expansion valve provided by an embodiment of the present invention is given, as shown in figure 1 shown, including the following steps:

[0018] Step 1, obtaining the discharge temperature of the compressor, and when the discharge temperature of the compressor is greater than or equal to the preset first discharge temperature, the electronic expansion valve is adjusted by using the preset first adjustment steps;

[0019] Step 2, after the preset adjustment time point is reached, the electronic expansion valve is continuously adjusted with the second variable number of adjustment steps until the discharge temperature of th...

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Abstract

The invention particularly relates to an adjusting method and an adjusting system of an air conditioner electronic expansion valve, and an air conditioner. According to the adjusting method of the air conditioner electronic expansion valve provided by the invention, an adjusting process of the electronic expansion valve is divided into two stages of firstly, when the discharge temperature of a compressor achieves a first preset value, adopting a fixed first adjusting step number for adjusting; and then adopting a changeable second adjusting step number for continuously adjusting the electronic expansion valve during a second stage until the discharge temperature of the compressor is smaller than preset second discharge temperature, so that when the discharge temperature of the compressor is too high, not only can the opening degree of the electronic expansion valve be accurately and quickly adjusted, but also an air conditioner system can be ensured to operate continuously and stably.

Description

technical field [0001] The invention relates to the field of air conditioner control, in particular to an adjustment method and system for an air conditioner electronic expansion valve and an air conditioner. Background technique [0002] When the discharge temperature of the compressor is too high, it will not only decompose the refrigerant and lubricating oil in contact with metals and other substances, generate carbon deposits and acids, but also reduce the viscosity of the lubricating oil, resulting in unsuitable Some wear and tear may even cause the built-in motor of the compressor to burn out. In short, excessively high exhaust temperature will affect the life of the compressor. Therefore, it is necessary to adjust the electronic expansion valve to change the amount of refrigerant in the system, thereby reducing the impact of excessively high exhaust temperature. At present, the method of adjusting the electronic expansion valve is to directly reach a certain opening d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F24F11/64F24F11/84
CPCF24F11/30F24F11/62F24F11/64F24F2110/10F25B49/02F25B2600/2513F25B2700/21152
Inventor 刘帅帅
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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