Siemens Aktiengesellschaft

Karsten Peters

Edwin Gobrecht

Martin Bennauer

Rainer Quinkertz

Jan Walkenhorst

Achim Hammann

Dirk Knudsen

Henri Diesterbeck

A steam turbine with a shaft seal is provided. The shaft seal steam barrier is supplied with a slight excess pressure. In order to avoid complex additional devices necessary for liquefying the water vapor once again, a condensation chamber, which is sealed from the surrounding air as well as from the steam barrier chamber with brush seals, is provided between the steam barrier chamber and the surrounding air. The condensation chamber is constructed in such a manner that the heat, developing in the interior thereof, is discharged to the outside.

Shaft seal for steam turbines

The invention relates to a method for heating a steam turbine comprising a high-pressure turbine section and a medium-pressure turbine section and/or a low-pressure turbine section. Said method is characterized by the essential aspect that the high-pressure turbine section is impinged upon by steam having relatively great conductivity while the medium-pressure turbine section or the low-pressure turbine section remains closed during said impingement following a cold start. As soon as the conductivity drops below a certain value, the medium-pressure turbine section or the low-pressure turbine section is also impinged upon by steam.

Method for warming-up a steam turbine

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Wesel, Germany

Karsten Peters