Solar energy assisted ammonia absorption/compressive composite refrigerating system for refrigerator car

The invention discloses a solar energy assisted ammonia absorption/compressive composite refrigerating system for a refrigerator car. The solar energy assisted ammonia absorption/compressive compositerefrigerating system for the refrigerator car comprises a solar energy driving absorption type refrigerating subsystem and a compressive refrigerating subsystem; the solar energy driving absorption type refrigerating subsystem comprises a solar energy heat collection plate, an ammonium hydroxide pump, a generation rectifier, a condenser I, an evaporative condenser, an absorber and a solution pump; the compressive refrigerating subsystem comprises a low-pressure-stage compressor, an oil separator and an evaporator; and the input end of the low-pressure-stage compressor is connected with the output end of the evaporator, the output end of the low-pressure-stage compressor is connected with the input end of the oil separator, the output end I of the oil separator is connected with the inputend of the secondary side