METHOD AND DEVICE FOR COOLING THE LOW-PRESSURE STAGE OF A STEAM TURBINE

A method and a device for cooling a low-pressure turbine section of a steam turbine connected in a water/steam circuit, include feeding a coolant flow through parts of the low-pressure turbine section, in particular during idling operation. Condensate bled from a condenser connected downstream of th...

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Bibliographische Detailangaben
1. Verfasser:	ZOERNER, WALTER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A method and a device for cooling a low-pressure turbine section of a steam turbine connected in a water/steam circuit, include feeding a coolant flow through parts of the low-pressure turbine section, in particular during idling operation. Condensate bled from a condenser connected downstream of the steam turbine is used as a coolant for especially effective cooling while simultaneously utilizing heat obtained in the process. The condensate emits heat absorbed during the cooling to the water/steam circuit. A coolant line which is connected to the outflow side of the condenser is connected to the low-pressure turbine section. A heat exchanger is connected to the coolant line and in the water/steam circuit.