Air conditioner dehumidifying system and control method thereof

Abstract

The invention discloses an air conditioner dehumidifying system which comprises an indoor unit and an outdoor unit. The outdoor unit comprises a compressor, a four-way valve, an outdoor heat exchanger, a first electronic expansion valve and a first one-way valve parallelly connected with the first electronic expansion valve, the indoor unit comprises a second electronic expansion valve, an indoor heat exchanger, a first electromagnetic valve and a dehumidifying coil, the first electromagnetic valve is parallelly connected with the second electronic expansion valve, the dehumidifying coil is arranged between the second electronic expansion valve and the indoor heat exchanger, and an electronic expansion valve is arranged between the dehumidifying coil and the indoor heat exchanger and is parallelly connected with a second electromagnetic valve. By the aid of the air conditioner dehumidifying system, a dehumidifying module and the dehumidifying coil are arranged between the second electronic expansion valve and the indoor heat exchanger, an air conditioner can realize constant-temperature dehumidifying, temperature rise dehumidifying and heating dehumidifying functions by controlling the electromagnetic valves and the electronic expansion valves, and the overall performance of the air conditioner is improved by the aid of secondary super-cooling technology.

Description

technical field [0001] The invention relates to the technical field of air conditioning dehumidification, in particular to an air conditioning dehumidification system and a control method thereof. Background technique [0002] From the perspective of air conditioning regulation theory and human comfort index, temperature and humidity are two important factors. In the Yangtze River Basin and the south of our country, the coastal areas are faced with the problem of suitable temperature and high humidity. For example, in the rainy season south of the Yangtze River, the outdoor air temperature is basically maintained at 25 ℃, which is a more suitable temperature for the human body. At that time, the outdoor relative humidity is basically maintained above 70%, which makes people feel humid and hot. Therefore, in order to maintain the indoor comfort during the rainy season, it is necessary to keep the indoor temperature as constant as possible while reducing the indoor air humidi...

AI Technical Summary

Problems solved by technology

The specific principle of merit and demerit is to use one of the two parts of the heat exchanger as an evaporator to condense the water vapor in the air, and use the other as a condenser to reheat the cooled air to achieve the purpose of constant temperature dehumidification, but this The air conditioner only has the function of constant temperature dehumidification, and cannot realize the function of heating and dehumidification, and cannot meet the needs of users for dehumidification under various conditions

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