Large-temperature-difference anti-condensation method, system, equipment and medium for air mixing unit

Abstract

The application provides a large-temperature-difference anti-condensation method, system, device and medium for a mixed air unit, and belongs to the technical field of heating, ventilation and air conditioning. The method comprises the following steps: in a heating and humidifying mode in winter, detecting the temperature and humidity of fresh air and return air, judging whether there is a condensation risk according to the temperature and humidity of the fresh air and the return air; when it is determined that there is a condensation risk, adjusting the opening degree of the first air valve assembly and the opening and closing of the second air valve assembly, and driving the compressor to enter a heating state; adjusting the operating frequency of the compressor according to the set supply air temperature, and adjusting the input proportion of the humidifier according to the set dew point temperature; detecting the exhaust pressure of the compressor, and adjusting the opening degree of the second air valve assembly according to the exhaust pressure, so that the exhaust pressure is maintained within the set pressure range. The condensation phenomenon that occurs when mixed air with a large temperature difference is solved, and the energy consumption of the unit is reduced.

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