FIELD: heating systems.
SUBSTANCE: method of reducing the heat consumption required for rectification is realised by compressing the steam of the rectifying column upper part up to the pressure whereat steam condensation temperature is greater than liquid boiling point in evaporator, and by using heat of its condensation for heating the evaporator. Steam of the rectifying column upper part is compressed in a liquid ring-type compressor, and condensate formed during steam condensation of the rectifying column upper part in evaporator is used as a sealing liquid. The method allows utilising steam condensation heat of the rectifying column upper part for heating the evaporator.
EFFECT: reducing the power required for compression and eliminating the necessity of steam reheat stage before it is supplied to compressor.
4 dwg
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