Cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method
A technology of cold energy recovery and fresh-keeping device, which is applied to household refrigeration devices, lighting and heating equipment, household appliances, etc., can solve the problems of poor device applicability, poor quick-freezing effect, inconvenient cleaning, etc., and achieves good thermal insulation effect. , Easy to clean, good sealing effect
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[0036] The present invention will be further described below in conjunction with the drawings.
[0037] Such as Figure 1 to Figure 6 As shown, a cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device mainly includes a discharge end heat preservation shell 7, a feed end heat preservation shell 11, a spray system end heat preservation shell 10, and a fan end heat preservation shell 9 , Liquid nitrogen spray system 4, liquid nitrogen flow control system 3, conveyor belt system 6, exhaust system 1.
[0038] The hollow parts of the heat-insulating shell at the discharge end, the heat-insulating shell at the feeding end, the heat-insulating shell at the spray system end, and the heat-insulating shell at the fan end are all insulated by vacuum.
[0039] The conveyor belt system is movable and detachable. Through the meshing of gear A and gear B, the rotation of the motor is converted into the rotation of the conveying system.
[0040] A circulating convect...
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