Turbomachine and method for cooling a turbomachine
AssigneeSiemens Aktiengesellschaft
InventorsHeinrich Oeynhausen, Edwin Gobrecht, Helmut Pollak, Andreas Feldmueller
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Abstract
A turbomachine, especially a steam turbine, includes a casing, an inflow region formed at least in part by the casing for guiding working fluid, a feed for a cooling fluid, a rotating-blade carrier disposed in the casing and extending along a principal axis, and a shielding element disposed in the inflow region for shielding the rotating-blade carrier from the working fluid. The shielding element is attached to the casing by a mounting and the feed is guided through the mounting. A method is also provided for cooling one or more components of a turbomachine adjoining an inflow region for a hot working gas.
Claims17
A turbomachine, comprising:
- a casing;
- an inflow region for a working fluid, said inflow region formed at least in part by said casing;
- a rotating-blade carrier disposed in said casing and extending along a principal axis;
- a shielding element disposed in said inflow region for shielding said rotating-blade carrier from the working fluid;
- a mounting constructed as a fixed blade, said mounting attaching said shielding element to said casing;
- and
- a feed conduit guided through said mounting for feeding a cooling fluid into said shielding element.
A double-flow medium-pressure steam turbine, comprising:
- a casing;
- an inflow region for a working fluid, said inflow region formed at least in part by said casing;
- a rotating-blade carrier disposed in said casing and extending along a principal axis;
- a shielding element disposed in said inflow region for shielding said rotating-blade carrier from the working fluid;
- a mounting constructed as a fixed blade, said mounting attaching said shielding element to said casing;
- and
- a feed conduit guided through said mounting for feeding a cooling fluid into said shielding element.
In a method for cooling at least one component of a turbomachine having a casing, a shielding element, a rotating-blade carrier disposed in the casing, and an inflow region adjoining the at least one component and formed at least in part by the casing, the improvement which comprises:
- feeding cooling fluid through the casing to the shielding element to reduce temperature loading on the rotating-blade carrier.
Dependencies are inferred from the claim text.