Turbine case impingement cooling for heavy duty gas turbines
AssigneeGeneral Electric Company
InventorsDean Matthew Erickson, Hua Zhang, Jason Seale
Life of this patent
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Abstract
A impingement cooling system for heavy duty turbines that includes a manifold affixed to a casing of the heavy-duty turbine, wherein the manifold includes a plurality of impingement holes in the surface of the manifold and a blower that provides air flow across the plurality of impingement holes of the manifold to cool the casing of the heavy-duty turbine to control the clearance between a tip of a turbine blade and a shroud of the heavy-duty turbine.
Claims12
An impingement cooling system for heavy duty land-based turbines comprising:
- an open impingement cooling manifold affixed to a non-uniform casing of the heavy-duty turbine, wherein the impingement cooling manifold comprises a plurality of impingement holes in the surface of the impingement cooling manifold;
- the manifold being positioned about a turbine blade and a shroud of the heavy duty turbine;
- and
- a motor driven blower in direct communication with ambient air that provides ambient air flow across the plurality of impingement holes of the impingement cooling manifold to cool the casing of the heavy-duty turbine to control a clearance between a tip of the turbine blade and the shroud of the heavy-duty turbine before exhaust to the ambient.
An impingement cooling system for heavy duty land-based turbines comprising:
- a plurality of open manifolds affixed to a non-uniform casing of the heavy-duty turbine, wherein the plurality of manifolds comprise a plurality of holes in the surface of the plurality of manifolds;
- the plurality of manifolds being positioned about a plurality of turbine blades and a plurality of shrouds of the heavy duty turbine;
- and
- a motor driven blower in direct communication with the ambient air that provides ambient air flow across the plurality of holes of the plurality of manifolds to cool the casing of the heavy-duty turbine to increase a plurality of clearances between the plurality of tips of a plurality of turbine blades and the plurality of shrouds of the heavy-duty turbine before exhaust to the ambient.
Dependencies are inferred from the claim text.