Method and system for monitoring non-rotating turbomachine parts
AssigneeGeneral Electric Company
InventorsDavid Ernest Welch, Kristopher John Frutschy, Edward Leo Kudlacik
Life of this patent
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Abstract
A method for monitoring non-rotating turbomachine parts includes the step of measuring displacement of at least one turbomachine part. A monitoring step monitors displacement of the turbomachine part with a non-contact type sensor. A collecting step collects data regarding the displacement of the turbomachine part. An analyzing step analyzes the data to determine if the displacement exceeds a predetermined threshold range. The non-contact type sensor may be attached to the turbomachine by a rod formed of a material having a low coefficient of thermal expansion, and a target may be attached to a stationary structure in close proximity to the non-contact type sensor.
Claims25
A method for monitoring non-rotating turbomachine parts, the method comprising:
- measuring displacement of at least one non-rotating turbomachine part, the measuring comprising:
- (a) monitoring displacement of the non-rotating turbomachine part with a non-contact type sensor, the non-contact type sensor comprising one of, a laser sensor, a magnetic sensor or an optical sensor;
- (b) collecting data regarding the displacement of the non-rotating turbomachine part;
- (c) analyzing the data to determine if the displacement exceeds a predetermined threshold range.
A system for monitoring a non-rotating turbomachine part, the system comprising:
- a non-contact type sensor located in close proximity to a target, either the non-contact type sensor or the target attached to the non-rotating turbomachine part by a rod formed of a material having a low coefficient of thermal expansion, the non-contact type sensor comprising one of a laser sensor, a magnetic sensor or an optical sensor;
- the target or the non-contact type sensor is attached to a stationary structure located near the non-rotating turbomachine part, the stationary structure being substantially separate from the non-rotating turbomachine part;
- and
- wherein the non-contact type sensor measures displacement of the non-rotating turbomachine part.
A method for monitoring non-rotating turbomachine parts, the method comprising:
- measuring displacement of a non-rotating turbomachine part, the measuring comprising:
- (a) monitoring displacement of the non-rotating turbomachine part with a non-contact type sensor, the non-contact type sensor comprising a laser sensor;
- (b) collecting data regarding the displacement of the non-rotating turbomachine part;
- (c) analyzing the data to determine if the displacement exceeds a predetermined threshold range;
- and
- wherein the non-rotating turbomachine part is a steam turbine shell or a steam turbine valve.
Dependencies are inferred from the claim text.