Rotary access refrigerators are mainly used in biological samples, medicine, chemical industry, food and other fields. Biological samples are guaranteed to be frozen at low temperatures ranging from 2 to 8, - 30, - 86 and - 150%. From the point of view of refrigeration box design, the equipment and its system have the following characteristics:
1. The enclosure structure of refrigeration box is composed of vacuum insulating board (VIP) and polyurethane board. The insulation effect is good. Special opening mode of storage door is adopted to reduce leakage of cold and save energy and efficiency.
2. The use of special revolving shelves to avoid staff entry and exit greatly ensures the safety of staff, reduces the risk of biological sample contamination and cross-infection, and improves work efficiency;
3. The output terminal of the driving device is connected with the shelf, and the corresponding relationship between the refrigerated area and the refrigerated items is recorded by the upper computer system. The signal is transmitted to the driving device controller through the motion controller and the PLC controller, which drives the driving device to move and realizes the intelligent automatic control.
4. The PT100 temperature probe is set in the refrigeration box to monitor the state of the refrigeration box in real time through the upper computer system, and the low temperature solenoid valve is automatically controlled by the temperature module and the PLC controller. The temperature fluctuation in the refrigeration box is small, which ensures the safety of the storage.