Air conditioning system controlling air outlet temperature through dew point temperature and control method of air conditioning system

Abstract

The invention discloses an air conditioning system controlling the air outlet temperature through the dew point temperature and a control method of the air conditioning system, and relates to the technical field of air conditioners. The air conditioning system structurally comprises a compressor, a condenser, an outdoor fan, an outdoor environment temperature sensor, a controller, an air conditioner air return temperature sensor, an air conditioner air return humidity sensor, a first-stage evaporator, an indoor fan, an air conditioner air outlet temperature sensor, a humidifier, a second-stageevaporator, a first-stage flow adjusting valve and a second-stage flow adjusting valve. The compressor, the condenser, the first-stage evaporator, the second-stage evaporator, the first-stage flow adjusting valve and the second-stage flow adjusting valve form a compressor refrigeration and dehumidifying system. The compressor, the outdoor fan, the outdoor environment temperature sensor, the air conditioner air return temperature sensor, the air conditioner air return humidity sensor, the air conditioner air outlet temperature sensor, the humidifier, the first-stage flow adjusting valve and the second-stage flow adjusting valve are electrically connected with the controller and controlled by the controller.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning system and a control method thereof which control the humidity of the outlet air through the dew point temperature. Background technique [0002] With the release of the new national standard GB50174-2017 "Data Center Design Code", the temperature and humidity control goals of the computer room air conditioner are changed from room temperature and humidity control to cabinet air intake temperature and humidity. These changes in temperature and humidity will affect and change Future data center air conditioning system architecture and control. However, there are deficiencies in the application of air supply humidity control technology at present. How to accurately judge the humidification demand and dehumidification demand of the system and control the reasonable operation of the humidifier and compressor is one of the problems. [0003] At present, t...

AI Technical Summary

Problems solved by technology

However, there are deficiencies in the application of air supply humidity control technology at present. How to accurately judge the humidification demand and dehumidification demand of the system and control the reasonable operation of the humidifier and compressor is one of the problems.

[0004] With the existing technical scheme, the humidity of the air outlet fluctuates greatly, and it is impossible to accurately judge the best operation mode, especially in the case of low load, such as: the set value of the air outlet temperature and humidity is 22°C/50%. When starting up, the temperature and humidity before and after the heat exchanger are consistent, assuming 37°C/30%, and the moisture content is 11.783

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