Geothermal turbine

A geothermal turbine (10) comprises a turbine casing (11), a turbine rotor shaft (26), a plurality of nozzle diaphragm outer rings (17) fixed to the turbine casing, a plurality of nozzle diaphragm inner rings (18) located radially inside the nozzle diaphragm outer rings, a plurality of nozzles (19)...

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Bibliographische Detailangaben
Hauptverfasser:	Takagi, Kentaro, Fujihashi, Hisao, Suzuki, Atsuhide, Ikeda, Kazuaki, Watanabe, Osamu, Fujiwara, Toshihiro, Fukuda, Masataka, Matsuura, Toshihiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS ALLOYS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINE TOOLS MACHINES OR ENGINES FOR LIQUIDS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PRODUCING MECHANICAL POWER SOLDERING OR UNSOLDERING SPRING, WEIGHT, INERTIA OR LIKE MOTORS STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WELDING WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A geothermal turbine (10) comprises a turbine casing (11), a turbine rotor shaft (26), a plurality of nozzle diaphragm outer rings (17) fixed to the turbine casing, a plurality of nozzle diaphragm inner rings (18) located radially inside the nozzle diaphragm outer rings, a plurality of nozzles (19) placed between the nozzle diaphragm outer rings and the nozzle diaphragm inner rings, which form a steam passage, a plurality of rotor blades (36) mounted on the turbine rotor shaft (26), which face the nozzles and form a blade cascade in a circumferential direction, a shroud (37) arranged on tip of the rotor blade, an overhang (38) attached to the nozzle diaphragm outer ring (17), which extends downstream of the nozzles and has an inner surface (38a) facing radially outside the shroud (37), and a plurality of sealing fins (41) which protrude radially outward from the shroud (37) and face the overhang (38).