Dehumidification control method and device of air-conditioning system, and air conditioner

Abstract

The invention relates to a dehumidification control method and device of an air-conditioning system, and an air conditioner. The dehumidification control method of the air-conditioning system comprises the steps: industrial control parameter information is obtained; target opening degree values of electric expansion valves on two evaporators on the inner side of an air conditioner unit are determined according to the industrial control parameter information; and the opening degrees of the corresponding electric expansion valves are controlled according to the target opening degree values to lower the evaporation temperature of the evaporators so as to lower the indoor humidity. The target opening degree values of the electric expansion valves are determined according to the industrial control parameter information, by adjusting and controlling the electric expansion valves, the opening degrees of the electric expansion valves reach the target opening degree values, thus the evaporationtemperature is lowered, and the effect of dehumidification enhancing is achieved; and according to the dehumidification control method, the indoor humidity can be controlled more accurately, the dehumidification effect can also be achieved better even in the environment with the large humidity load, and the user experience is improved advantageously.

Description

technical field [0001] The invention relates to the technical field of air conditioning control, in particular to a dehumidification control method and device for an air conditioning system, and an air conditioner. Background technique [0002] At present, most of the constant temperature and humidity products are the control mode of the single-cooling model with electricity and auxiliary heat. In the prior art, there is a frequency conversion constant temperature and humidity air conditioner. There are two evaporators arranged symmetrically on the inner side of the hood: the front side evaporator and the rear side evaporator. The front evaporator and the rear evaporator are individually controlled by an electronic expansion valve; the air conditioning unit is a frequency conversion unit, which can avoid the problem of poor temperature and humidity control accuracy caused by frequent startup and shutdown of the unit when the load is small occur. [0003] However, this air ...

AI Technical Summary

Problems solved by technology

When the air conditioner is used in an environment with high humidity, such as in the humid season in the south, the dehumidification capacity of the air conditioner will not be sufficient to overcome the heat and moisture exchange between the indoor and outdoor , so that the dehumidification of the unit and the heat and humidity exchange between indoors and outdoors reach an equilibrium state, causing the indoor dehumidification effect of the air conditioning unit to reach the upper limit. set requirements and affect user experience

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