1. Check whether the refrigeration system is normal: the liquid nitrogen refrigerator uses liquid nitrogen (-196℃) for refrigeration, so if the temperature rises, it may be a malfunction of the refrigeration system. You can check the operation of the refrigeration system, including pressure, refrigerant flow, etc. , find the problem and fix it in time.
2. Check the tightness of the door: If the seal of the liquid nitrogen cooling box is not tight enough, it may cause hot air from outside to enter the box, thus raising the temperature. You should check the tightness of the door and repair or replace the sealing strip.
3. Adjust the electric control system: the liquid nitrogen cooling box adopts the electric control system, and the temperature can be controlled by adjusting the control system. The parameters of the control system can be adjusted according to the specific situation, so that it can maintain the low temperature state stably.
4. Check the installation of additives and equipment: The additives used in the liquid nitrogen cooling box may affect the temperature, so it is necessary to check the use of additives. At the same time, it may be necessary to check the installation of the equipment to ensure that the equipment can work normally. In a word, the problem of excessive temperature of liquid nitrogen cooling box needs to be analyzed and dealt with according to the actual situation. If you don't have relevant technical knowledge or tools, you should seek the help of professionals in time. At the same time, in daily use, we should also pay attention to the maintenance of the liquid nitrogen cooling box, and regularly clean and maintain the equipment to ensure its safe and stable work. Judging from the network information.