METHOD OF SEPARATING NON-CONDENSED GAS FROM NON-AZEOTROPIC MIXTURE MEDIUM

摘要

PURPOSE:To separate effectively non-condensed gas from non-azeotropic mixture medium with less power by cooling and liquefying a low boiling point component after a gaseous phase component in an outlet of a condenser together with the low boiling point component is compressed. CONSTITUTION:Operative medium steam discharged from a turbine 4 is stripped of heat by cooling water in a condenser 6 to be condensed and the condensed liquid is sent to a gas-liquid separator 12. Uncondensed operative medium steam, air and other uncondensed gas are separated in the separator 12 and only liquid phase operative medium is again sent to an evaporator 2 by a pump 8. On the other hand, the gaseous phase, after compressed by a compressor 14, is sent to an after-cooler 16. Thus, uncondensed operative medium steam is completely condensed so that uncondensed gas is separated and discharged from a valve 18 to the outside of a system. Also, condensed operative medium through an expansion valve 22 joins operative medium steam from the turbine 4 to again enter the condenser 6. Thus, the uncondensed gas can be separated with less power in comparison to that in the case of cooling to an extremely low temperature.