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Methods and systems for maintenance of turbomachinery

  • US 9,569,397 B2
  • Filed: 07/12/2012
  • Issued: 02/14/2017
  • Est. Priority Date: 07/12/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a processor configured to execute;

    a condition based replacement life (CBRL) approval system configured to receive a turbomachinery component data from a plurality of sensors;

    to determine if a component deterioration is observable based on the turbomachinery component data; and

    if the component deterioration is observable, to approve a turbomachinery component for CBRL use based on the turbomachinery component data;

    derive a maximum part life that exceeds a manufacturer originally estimated life for the turbomachinery component based on an analysis of an outage rate, a scrap profile, or a combination thereof, wherein the scrap profile comprises a number of parts for the turbomachinery component that fall out of operations, are found to be undesired for operations, or a combination thereof;

    a CBRL validation system configured to validate the turbomachinery component into a validated turbomachinery component by applying a validation analysis based on a plurality of validation zones, wherein each validation zone in the plurality of validation zones comprises a time prior to a fired hours milestone at which the turbomachinery component is inspected to observe the deterioration, wherein the processor is configured to validate, via the CBRL validation system, a validated turbomachinery component to operate in a turbomachinery beyond a service time of the turbomachinery component, wherein a first service time for a first validation zone for the turbomachinery component comprises a manufacturer recommended number of fired hours, a second service time for a second validation zone for the turbomachinery component comprises a hot gas path inspection (HGPI) interval, a third service time for a third validation zone for the turbomachinery component comprises a combustion inspection (CI) interval, and a fourth service time for a fourth validation zone for the turbomachinery component comprises a major inspection (MI) interval, and wherein the validated turbomachinery component improves the operational life of the turbomachinery by operating in the turbomachinery beyond the service time.

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