Function and principle of medical ultra-low temperature refrigerator

Medical ultra-low temperature refrigerators are equipment used to preserve medical samples. Their temperatures are usually between 20 and 100 degrees Celsius and are mainly used in hospitals' pathology, laboratory, dermatology, surgery and emergency departments.

The function of ultra-low temperature refrigerators is to preserve some pathological samples that need to be preserved for a long time, or some special cell samples, tissue samples, virus samples, etc. These samples usually need to be used for scientific research such as pathology, cytology, genetics, etc., so they need to be stored at low temperatures to avoid thermal damage to the samples.

Ultra-low temperature refrigerators can provide an ultra-low temperature environment of -20 degrees to -80 degrees, can effectively preserve various biological samples, and have the advantages of high precision, good stability, low noise, low power consumption, etc. In the medical field, the application of ultra-low temperature refrigerators is becoming more and more extensive, and has become one of the indispensable important equipment in medical research and medical practice.

The principle of medical ultra-low temperature refrigerators is mainly based on the reverse Carnot cycle principle of Freon expansion, evaporation and condensation. Through the reverse Carnot cycle process, heat is removed from low-temperature objects, thereby maintaining the low temperature state of the objects. Specifically, it uses the reverse Carnot cycle technology to divide the heat exchange process that occurs into two processes, namely the evaporation process of the refrigerant and the condensation process of the refrigerant.