Liquid nitrogen refrigeration device

Abstract

The utility model provides a kind of liquid nitrogen refrigeration device, it is related to refrigeration technical field.Liquid nitrogen refrigeration device includes refrigeration component, refrigeration component is used to utilize factory's central air conditioning hot water, to make liquid nitrogen from liquid nitrogen tank inflow to the preheating of refrigeration component in liquid nitrogen, and make the liquid nitrogen after preheating enter vaporizer.This application is directly coupled with central air conditioning waste heat and liquid nitrogen vaporization demand, realize two-way energy recovery, for liquid nitrogen system, utilize originally discarded air conditioner hot water to provide preheating source for liquid nitrogen, significantly reduce the power consumption / steam consumption of vaporizer;For air conditioning system, the process of liquid nitrogen endothermic vaporization synchronously provides cold capacity for air conditioning water, reduces refrigerating unit load, converts waste heat into cold capacity driving source, breaks through the energy waste bottleneck of traditional system independent operation.

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