Siemens Aktiengesellschaft

Dietmar Röttger

Detlef Haje

Friedhelm Schmitz

The aim of the invention is to provide a superheated component of a steam turbine installation with high thermal and mechanical resistance. To this end, the component comprises a lining applied to a body of the component, on a hot side facing a steam chamber, said lining being adapted to the contour of the component body. According to the invention, the lining comprises a number of molded parts, each molded part comprising a metallic and ceramic composite layer formed from at least one metallic layer and at least one ceramic layer. The ceramic layer is used especially as a insulating layer, and the metallic layer is especially used as a support or for protection against abrasion and/or erosion.

Component of a steam turbine plant, steam turbine plant, application, and production method

The proposed steam turbine rotor extends along an axial extent and includes: an outer side which adjoins an outer space which is intended to receive a main flow of a fluid working medium, a first location along the outer side, at which a first blade is held, a second location along the outer side, at which a second blade is held, the second location being arranged behind the first location along the axial extent. To ensure sufficient cooling, there is at least one integrated passage, which extends continuously at least between a first region arranged in front of the first location and a second region arranged behind the second location The invention proposes a method and a use in which a fluid cooling medium is guided in a corresponding way.

Steam turbine rotor, steam turbine and method for actively cooling a steam turbine rotor and use of active cooling

A steam turbine () having a rotor () which is provided with a number of rotor blades () and, together with a number of guide vanes (), is arranged inside a casing shell () formed from a number of casing segments is to be designed to be suitable for operation with relatively high steam parameters, i.e. in particular with a particularly high steam temperature and a particularly high steam pressure. For this purpose, according to the invention active cooling of the casing shell () is provided, at least one of the casing segments which form the casing shell being provided with a number of integrated cooling channels (). When the steam turbine () is operating, therefore, the casing shell () is actively cooled with a cooling medium by the latter being supplied to the cooling channels ().

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Essen, Germany

Dietmar Röttger