BINARY POWER GENERATION SYSTEM

摘要

A binary power generation system includes: a first pressure reducing steam-liquid separator which reduces the pressure of geothermal heat source water to separate the geothermal heat source water into water steam and hot liquid water; a steam turbine which is driven by geothermal water steam; a medium turbine which is driven by medium vapor obtained by evaporating a medium liquid with the geothermal heat source water as a heat source; a condenser/evaporator which is configured to transfer the heat of the water steam discharged from the steam turbine to the medium liquid so that the water steam is condensed and the medium liquid is evaporated; and a gas cooler which leads a working medium discharged from the medium turbine to thereby cool condensed water obtained by the condenser/evaporator and separate and discharge noncondensable gas contained in the condensed water.

主权项

1. A binary power generation system comprising:
a first pressure reducing steam-liquid separator that reduces pressure of geothermal heat source water to separate geothermal heat source water into water steam and hot liquid water; a steam turbine that is driven by the water steam; a medium turbine that is driven by vapor medium obtained by evaporating liquid medium by using the geothermal heat source water as a heat source; a condenser/evaporator that is configured to transfer heat of the water steam discharged from the steam turbine to the liquid medium so that the water steam is condensed and the liquid medium is evaporated; a gas cooler that further cools gas remaining in the condenser/evaporator by using a medium discharged from the medium turbine as a cold source, thereby separating and discharging noncondensable gas contained in the gas; and at least one generator to be driven by the steam turbine and the medium turbine.