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Title: Cooling system for three hook ring segment

Patent ·
OSTI ID:1151789
; ; ;

A triple hook ring segment including forward, midsection and aft mounting hooks for engagement with respective hangers formed on a ring segment carrier for supporting a ring segment panel, and defining a forward high pressure chamber and an aft low pressure chamber on opposing sides of the midsection mounting hook. An isolation plate is provided on the aft side of the midsection mounting hook to form an isolation chamber between the aft low pressure chamber and the ring segment panel. High pressure air is supplied to the forward chamber and flows to the isolation chamber through crossover passages in the midsection hook. The isolation chamber provides convection cooling air to an aft portion of the ring segment panel and enables a reduction of air pressure in the aft low pressure chamber to reduce leakage flow of cooling air from the ring segment.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,814,507
Application Number:
13/903,087
OSTI ID:
1151789
Country of Publication:
United States
Language:
English

References (22)

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Borescope boss and plug cooling patent August 2012
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A multiple impingement cooled structure is provided having two or more stages of impingement cooling wherein the stages are arranged so as to have substantially constant cooling effectiveness patent-application July 2003
Turbine shroud segment and shroud assembly patent-application July 2003
Shroud Seal Segments Arrangement in a Gas Turbine patent-application July 2011

Cited By (2)

Industrial gas turbine exhaust system diffuser inlet lip patent March 2017
Shroud block segment for a gas turbine patent October 2016

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