Method and device for cooling a low-pressure turbine section

Details Method and device for cooling a low-pressure turbine section Method and device for cooling a low-pressure turbine section

1998-03-02

2000-08-01

Kamen, Noah P.

Power plants

Motive fluid energized by externally applied heat

60662, F01K 104

Patent

active

060949147

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.

REFERENCES:
patent: 4891937 (1990-01-01), Noguchi et al.
Soviet Patent Abstract No. 85-151282 (Kachan et al.), dated May 12, 1982.
Soviet Patent Abstract No. 85-010296 (Khrambrov et al.), dated May 15, 1984).

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