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|1. (WO2018146946) GEOTHERMAL TURBINE|
|Applicants:||MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Provided is a geothermal turbine equipped with a rotor, a casing for housing the rotor, a plurality of moving blades disposed around the rotor, a plurality of stationary blades supported on the casing, and at least one seal part provided in the gap between the rotor and the casing upstream of the first-stage moving blade so as to seal off leaked steam flowing toward the inner side of the rotor in the radial direction from between the first-stage stationary blade in the plurality of stationary blades and the first-stage moving blade in the plurality of moving blades, the geothermal turbine being provided with a steam passage which is configured so as to extract a portion of the steam that has passed the first-stage stationary blade and to pass the steam through the interior of the first-stage stationary blade and discharge the steam into the gap.