AIR REFRIGERATING UNIT Russian patent published in 2014 - IPC F25B9/06 F25B27/02 

FIELD: heating.

SUBSTANCE: invention refers to refrigerating equipment. An air refrigerating unit comprises a turbocompressor, a turboexpander and a combustion chamber. The output of the turbocompressor's compressor is connected to the input of a pneumatic controller. The first output of the pneumatic controller is communicated with the combustion chamber. The second output of the pneumatic controller through the first air cooler is connected to the input of the second compressor of the turboexpander. The input of the turbocompressor turbine is communicated with the output of the combustion chamber. The unit is equipped by a heat pump. The heat pump circuit comprises a steam and gas condenser and an additional compressor driven by the turbocompressor turbine. The output of the additional compressor is communicated with the heat absorption circuit of the steam and gas condenser through the heat releasing circuit of a steam evaporator and a throttle. The output of the heat absorption circuit of the steam and gas condenser is communicated with the input of the additional compressor. A steam superheater is installed at the gas removing line between the output of the turbocompressor turbine and a regenerator. The steam and gas condenser, a heat exchanger and a separator are successively installed at the gas removing line between the output of the regenerator and the atmosphere. The gas output of the separator is led out to the atmosphere. The condensate output of the separator is led to the input of the heat absorption circuit of the regenerator. The steam output of the heat absorption circuit of the regenerator is communicated with the combustion chamber by a line including successively connected heat absorption circuits of the steam evaporator and the superheater.

EFFECT: invention is aimed at the refrigeration efficiency increase and environment protection improvement.

2 cl, 1 dwg