Thermal shield for a component carrying hot gases, especially for structural components of gas turbines
AssigneeSiemens Aktiengesellschaft
InventorPeter Tiemann
Life of this patent
Estimating the term…
Abstract
A hot gas chamber, for example a combustion chamber of a gas turbine installation, is lined with thermal shield elements. A closed-circuit cooling system is provided by configuring the thermal shield element as a hollow body into which cool air flows via a cool air supply channel. Once the cool air is discharged from the thermal shield element through at least one opening, it is collected in a tiled intermediate space and is then used for the combustion process.
Claims20
A thermal shield arrangement, comprising:
- a closed-circuit cooling-air system for a structure carrying hot gas, including a plurality of thermal shield elements anchored next to one another on a supporting structure, wherein the thermal shield elements include a hollow body, a cooling-air feed passage and at least one opening for discharge of cooling air into a space located between individual thermal shield elements, wherein expansion gaps are included between thermal shield elements, and wherein sealing elements are arranged in the expansion gaps, the sealing elements being cooled by the cooling air.
A cooling-air system for a structure carrying hot gas, comprising:
- a plurality of thermal shield elements anchored next to one another on a supporting structure, wherein the thermal shield elements include a hollow body, a cooling-air feed passage and at least one opening for discharge of cooling air into a space located between individual thermal shield elements, wherein expansion gaps are included between thermal shield elements, and wherein sealing elements are arranged in the expansion gaps, the sealing elements being cooled by the cooling air.
A thermal shield for a structure carrying hot gas, comprising:
- a plurality of thermal shield elements, anchored next to one another onto a supporting structure, wherein the thermal shield elements include a hollow body, a cooling-air feed passage and at least one opening for discharge of cooling air into a space located between individual thermal shield elements, wherein expansion gaps are included between thermal shield elements, and wherein sealing elements are arranged in the expansion gaps, the sealing elements being cooled by the cooling air.
Dependencies are inferred from the claim text.