The freeze dryer refrigeration device is a thermal device composed of a closed freeze dryer refrigeration system (refrigerant circuit) and a heat exchange object.
Due to changes in the object load and interference factors such as the external environment, the working parameters (ie, operating conditions) of the freeze dryer refrigeration system will continue to change. The basic task of the automatic control system of the freeze dryer refrigeration device is to ensure the temperature control index required by the freeze dryer refrigeration process through appropriate adjustments in time when the load and external conditions change and to make the freeze dryer refrigeration system run. The working conditions are always maintained within a reasonable and safe range; further requirements are on the premise of meeting the above basic tasks. As much as the possible operating economy (energy saving) under various changing conditions, improve energy efficiency. The latter needs to be achieved through the overall optimization control.
