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Title: Hot spot detection system for vanes or blades of a combustion turbine

Abstract

This invention includes a detection system that can determine if a turbine component, such as a turbine vane or blade, has exceeded a critical temperature, such as a melting point, along any point along the entire surface of the vane or blade. This system can be employed in a conventional combustion turbine having a compressor, a combustor and a turbine section. Included within this system is a chemical coating disposed along the entire interior surface of a vane or blade and a closed loop cooling system that circulates a coolant through the interior of the vane or blade. If the temperature of the vane or blade exceeds a critical temperature, the chemical coating will be expelled from the vane or blade into the coolant. Since while traversing the closed loop cooling system the coolant passes through a detector, the presence of the chemical coating in the coolant will be sensed by the system. If the chemical coating is detected, this indicates that the vane or blade has exceeded a critical temperature.

Inventors:
 [1]
  1. Oviedo, FL
Issue Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
872123
Patent Number(s):
5865598
Assignee:
Siemens Westinghouse Power Corporation (Orlando, FL)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
DOE Contract Number:  
FC21-95MC32267
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hot; spot; detection; vanes; blades; combustion; turbine; determine; component; vane; blade; exceeded; critical; temperature; melting; entire; surface; employed; conventional; compressor; combustor; section; included; chemical; coating; disposed; interior; closed; loop; cooling; circulates; coolant; exceeds; expelled; traversing; passes; detector; presence; sensed; detected; indicates; chemical coating; turbine section; combustion turbine; closed loop; critical temperature; interior surface; entire surface; turbine vane; turbine component; entire interior; loop cooling; hot spot; /415/73/

Citation Formats

Twerdochlib, Michael. Hot spot detection system for vanes or blades of a combustion turbine. United States: N. p., 1999. Web.
Twerdochlib, Michael. Hot spot detection system for vanes or blades of a combustion turbine. United States.
Twerdochlib, Michael. Fri . "Hot spot detection system for vanes or blades of a combustion turbine". United States. https://www.osti.gov/servlets/purl/872123.
@article{osti_872123,
title = {Hot spot detection system for vanes or blades of a combustion turbine},
author = {Twerdochlib, Michael},
abstractNote = {This invention includes a detection system that can determine if a turbine component, such as a turbine vane or blade, has exceeded a critical temperature, such as a melting point, along any point along the entire surface of the vane or blade. This system can be employed in a conventional combustion turbine having a compressor, a combustor and a turbine section. Included within this system is a chemical coating disposed along the entire interior surface of a vane or blade and a closed loop cooling system that circulates a coolant through the interior of the vane or blade. If the temperature of the vane or blade exceeds a critical temperature, the chemical coating will be expelled from the vane or blade into the coolant. Since while traversing the closed loop cooling system the coolant passes through a detector, the presence of the chemical coating in the coolant will be sensed by the system. If the chemical coating is detected, this indicates that the vane or blade has exceeded a critical temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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