The invention relates to a Britten-steam Rankine-
ammonia steam Rankine combined circulation
electricity generation device. The
exhaust gas of a Britten gas
turbine is used as a heat source for steam Rankine-
ammonia steam Rankine combined circulation, a steam condenser of the steam Rankine circulation is used as an
evaporator of the
ammonia steam Rankine circulation, the characteristic that an ammonia steam Rankine
system has higher efficiency on the medium-low temperature heat source is utilized, a great amount of
latent heat of
vaporization released through
steam condensation is used for ammonia steam Rankine circulation efficient
electricity generation, more than 50 DEG C /
ton steam can be additionally recovered only in aspect of utilizing
latent heat of
vaporization of the steam Rankine circulation steam, meanwhile, the safety problem of the
smoke gas afterheat
recovery of the ammonia steam Rankine circulation is solved, the exhaust
smoke temperature is effectively lowered, and in addition, the low-temperature
corrosion of the
smoke gas is avoided. The Britten-steam Rankine-ammonia steam Rankine combined circulation
electricity generation device can be used for the energy-saving transformation of the existing
machine unit, and can also be used for the design and the building of newly built
machine units, and the economic, social and environment-protection benefits are obvious.