Ultra-low temperature access system and working method thereof
An access system and ultra-low temperature technology, which is applied in coolers, lighting and heating equipment, cooling fluid circulation devices, etc. Small, biological performance protection, easy maintenance effect
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[0042] The first embodiment of the present invention, such as figure 1 As shown, the cooling devices are refrigeration compressors 421 respectively arranged at the inlets of the cooling cavities, and the refrigeration compressors from the inside to the outside store the refrigerant with a weakened cooling effect gradient, so that the cooling cavities from the inside to the outside store the refrigerant with a weaker gradient in the cooling effect. The temperature gradient in . (If there are 3 cooling cavities, the temperatures of the corresponding refrigeration compressors from the outside to the inside are set to -30°C, -60°C, and -80°C respectively)
[0043] The second embodiment of the present invention, such as figure 2 As shown, the cooling device includes a liquid nitrogen source 43 and a heating device 44 respectively arranged at the entrance of the cooling cavity, the heating device is an electric heating wire, and the temperature of the heating wire corresponding to...
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