Method and device for cooling a low-pressure turbine section
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United States of America Patent
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Aug 1, 2000
Issued Date -
N/A
app pub date -
Mar 2, 1998
filing date -
Aug 31, 1995
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Abstract
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.
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