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&The energy-saving constant temperature dehumidifier takes advantage of the characteristics of cooling dehumidification temperature drop and dehumidification temperature rise of air conditioner. According to the different load, the best refrigeration cycle mode is selected, the design scheme is determined, and a new energy-saving constant temperature dehumidifier is finally designed through reasonable system matching. The system adopts double coolers to adapt to different environmental load changes.

&The indoor condenser works simultaneously with the outdoor condenser. The air is cooled and dehumidified by the evaporator, and then absorbed by the indoor condenser, and the temperature rises. Adjust the refrigerant flow into the indoor condenser to control its load, so that the heat absorbed by the air through the indoor condenser is exactly equal to the heating amount needed to raise the temperature to the outlet air temperature, so as to keep the temperature and humidity in a certain range.