System and method for on line monitoring within a gas turbine combustor section
First Claim
1. A method for on-line optical operational monitoring of an industrial gas turbine combustion section, comprising:
- coupling a man way cover having an optical window to a combustion section service man way;
directing the field of view (FOV) of an optical camera located outside the man way cover through the optical window, so that the FOV is capable of capturing images of areas of interest within the combustion section;
moving the camera FOV to plural positions within the combustion section and capturing respective images at each position; and
combining the respective captured images in a composite imageremote vibration monitoring of the areas of interest by monitoring relative motion of the areas of interest and correlating the motion with vibrational frequency.
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Accused Products
Abstract
An on-line optical inspection and monitoring system is externally mounted to existing man way service access within the combustor housing. A replacement man way cover having an optical window is mounted to the combustor housing. One or more optical cameras are oriented so that the camera field of view (FOV) is directed through the man way cover optical window. The camera FOV is moved to plural positions within the combustion section, such as under control of an automated motion control system, and images are captured. Multiple images are combined to form a composite image, which may include an image of an entire transition within the combustion section. Visual images and/or infrared (IR) thermal images may be captured. Thermal image information is correlated with component temperature. Image information is utilized to determine vibration characteristics of the imaged components.
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Citations
21 Claims
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1. A method for on-line optical operational monitoring of an industrial gas turbine combustion section, comprising:
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coupling a man way cover having an optical window to a combustion section service man way; directing the field of view (FOV) of an optical camera located outside the man way cover through the optical window, so that the FOV is capable of capturing images of areas of interest within the combustion section; moving the camera FOV to plural positions within the combustion section and capturing respective images at each position; and combining the respective captured images in a composite image remote vibration monitoring of the areas of interest by monitoring relative motion of the areas of interest and correlating the motion with vibrational frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An on-line optical operational monitoring system for an industrial gas turbine combustion section, comprising:
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a man way cover having an optical window, adapted for coupling to a combustion section service man way; an optical camera located outside the man way cover, having a field of view (FOV) directed through the optical window, so that the FOV is capable of capturing images of areas of interest within the combustion section; a motion control drive system coupled to the camera for moving the camera FOV to plural positions within the combustion section; a control system coupled to the motion control system and the camera, for causing the motion control drive system to position the camera and for capturing respective images at each position; and an image processing system for combining the respective captured images in a composite image a remote vibration monitoring system correlating a motion of the areas of interest with vibrational frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An on-line optical operational monitoring system for an industrial gas turbine combustion section, comprising:
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a man way cover having an optical window, adapted for coupling to a combustion section service man way; a paired infrared camera and a visible light spectrum camera coupled to a shared common optical path beam splitter, with both cameras having the same shared field of view (FOV), the cameras located outside the man way cover, with the shared FOV directed through the optical window, so that the FOV is capable of capturing images of areas of interest within the combustion section; respective remote focusing systems coupled to each camera; a motion control drive system coupled to the cameras and beam splitter, for moving the camera FOV along translation, roll and tilt motion axes to plural positions within the combustion section; a control system coupled to the motion control system the respective remote focusing systems and the respective cameras, for causing the motion control drive system to position the FOV along a selected path and for capturing respective images at each position; an image processing system for combining the respective captured images in a composite image that may include temperature information derived from image intensity information captured by the infrared camera and vibration frequency information derived from motion information captured by the visible light spectrum camera; and a cooling enclosure outside the man way enclosing the camera and motion control system, and a cooling system coupled to the enclosure, for circulating cooling fluid within the enclosure.
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Specification