Patent ID: 8726627

Claim:
A gas turbine equipment utilizing high humidity, comprising a humidifying means for humidifying compressed gas for combustion, a heat recovery means including at least one of an economizer for recovering exhaust heat from a gas turbine and an air cooler for recovering heat from said compressed air to heat humidifying water in said humidifying means, a recuperator for recovering exhaust heat from the gas turbine and for heating the compressed gas for combustion, which compressed gas has been humidified by said humidifying means, a dehumidifying means for dehumidifying and recovering moisture in the exhaust gas having passed through said recuperator, and an exhaust gas reheater for heating the exhaust gas after dehumidification, wherein said gas turbine equipment further comprises a recirculation pipe line for recirculating heated water between said heat recovery means and said exhaust gas reheater, a temperature measuring means for measuring a temperature of the exhaust gas passing through said exhaust gas reheater, and a recirculation pump provided in said recirculation pipe line, and adapted to be driven when a temperature measured by said temperature measuring means is not higher than a predetermined value.