Understanding of cryogenic box

2020-05-27 12:00:07

    The cryogenic box is just a simple container or box, and it is difficult to control the temperature. The program-controlled cryogenic equipment can control the temperature and the cooling rate. The cryogenic box refrigeration method is usually used in two applications: 1. Liquid nitrogen Refrigeration principle: The liquid nitrogen in the storage container is cooled by the heat absorption of the workpiece by the liquid when the liquid is sublimated to the gas. Liquid nitrogen can not be reused after cooling. New liquid nitrogen needs to be added. The cooling rate range is large and the cooling temperature range is 0-196 ° C. 2. Compressor refrigeration principle: use the suction pipe to suck low-temperature and low-pressure refrigerant gas, drive the piston to compress it through the operation of the motor, and discharge the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle to achieve Compression → condensation → expansion → evaporation (endothermic) refrigeration cycle. The compressor cooling medium can be used repeatedly for many times, and consumes relatively little, consumes more electric energy during the cooling process, the cooling rate is relatively small, and the cooling temperature range is 0-80 ℃. The two refrigeration methods mentioned above are more in the production of industrial program-controlled cryogenic boxes, using liquid nitrogen refrigeration. Liquid nitrogen can be used in the temperature range from 0 ℃ to -196 ℃ during refrigeration.


Nuoruida (Tianjin) science and Technology Co., Ltd. is committed to research, development, and sales of liquid nitrogen cryogenic equipment. Using European technology, we provide a variety of equipment. The main equipment is liquid nitrogen Cryogenic treatment equipment, cryogenic furnace, sub-zero processing equipment, low temperature cold assembly equipment, cryogenic freezing equipment, and so on.