Apparatus and method of detecting wear in an abradable coating system
First Claim
1. ) A component for use in a combustion turbine, the component comprising:
- a substrate;
an abradable coating system deposited on the substrate;
a planar proximity sensor deposited beneath a surface of the abradable coating system and comprising circuitry configured to detect intrusion of an object into the abradable coating system; and
at least one connector in electrical communication with the planar proximity sensor for routing a data signal from the planar proximity sensor to a termination location.
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Accused Products
Abstract
A component for use in a combustion turbine (10) is provided that includes a substrate (212) and an abradable coating system (216) deposited on the substrate (212). A planar proximity sensor (250) may be deposited beneath a surface of the abradable coating system (216) having circuitry (252) configured to detect intrusion of an object (282) into the abradable coating system (216). A least one connector (52) may be provided in electrical communication with the planar proximity sensor (250) for routing a data signal from the planar proximity sensor (250) to a termination location (59). A plurality of trenches (142) may be formed at respective different depths below the surface of the abradable coating system (216) with a planar proximity sensor (250) deposited within each of the plurality of trenches (142). A processing module (34) may be programmed for receiving data from the planar proximity sensor (250) and calculating a clearance between a row of blades (18,19) within a combustion turbine and the planar proximity sensor (250). The processing module (34) may control a clearance between the row of blades (18) and a ring segment (284) based on data received from the planar proximity sensors (250).
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Citations
20 Claims
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1. ) A component for use in a combustion turbine, the component comprising:
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a substrate;
an abradable coating system deposited on the substrate;
a planar proximity sensor deposited beneath a surface of the abradable coating system and comprising circuitry configured to detect intrusion of an object into the abradable coating system; and
at least one connector in electrical communication with the planar proximity sensor for routing a data signal from the planar proximity sensor to a termination location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. ) A combustion turbine engine comprising:
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a compressor;
a combustor;
a turbine comprising a row of blades and a ring segment circumscribing the row of blades;
an abradable coating system deposited on the ring segment;
a planar proximity sensor deposited beneath a surface of the abradable coating system; and
a monitoring system comprising a processing module programmed for receiving data from the planar proximity sensor and calculating a clearance between a tip of at least one blade of the row of blades and the planar proximity sensor. - View Dependent Claims (12, 13, 14, 15, 16)
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17. ) A turbine comprising:
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at least one turbine blade assembly comprising a hub and a plurality of turbine blades radially extending from the hub;
a ring segment circumscribing the plurality of turbine blades;
an abradable coating system deposited on a surface of the ring segment; and
at least one planar proximity sensor deposited beneath a surface of the abradable coating system. - View Dependent Claims (18, 19, 20)
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Specification