Mixed working medium refrigerating system capable of rapidly starting low-temperature storage box and control method
A low-temperature preservation and refrigeration system technology, applied in the field of refrigeration and low temperature, can solve the problems of complex system, non-normal condensation of mixed working medium, high exhaust pressure, etc., and achieve the effect of simplifying the refrigeration system, improving the start-up speed and the safety of the system operation
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[0018] The mixed working medium refrigeration system of the low temperature preservation box has two working modes, including start-up mode and refrigeration mode, and the specific working method is as follows:
[0019] (1) Start mode
[0020] Such as figure 1 As shown, the present invention provides a mixed working medium refrigeration system for quick start-up of a low-temperature storage box. In the start-up mode, it includes a compressor 1, a condenser 2, a regenerator 3, a temperature sensor 4, and a two-position three-way solenoid valve 5 , a short capillary 6, a one-way valve 7; the high-pressure gaseous mixed working medium at the outlet of the compressor 1 is cooled in the condenser 2 into a gas-liquid two-phase mixed working medium; this part of the two-phase mixed working medium enters the regenerator 3 Afterwards, it will be further condensed, but due to the high refrigeration temperature in the start-up stage, the regenerator cannot completely condense the mixed ...
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