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Diagnosis method for boiler degradation, diagnosis apparatus for boiler degradation, diagnosis system for boiler degradation and recording medium that records operation program

  • US 20070260426A1
  • Filed: 07/17/2007
  • Published: 11/08/2007
  • Est. Priority Date: 06/28/2004
  • Status: Active Grant
First Claim
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1. A diagnosis method for boiler degradation, comprising:

  • calculating a first thermal transmission rate from a difference in thermal quantity of gas or steam between an entrance and exit of a heat exchanger with respect to at least one heat exchanger constituting the boiler;

    calculating a second thermal transmission rate based upon a thermal conductivity rate of pipes and thermal;

    conductivity transfer rate of steam and gas of the heat exchanger;

    comparing the first and second thermal transmission rates; and

    carrying out diagnosis of the progress of degradation, wherein the diagnosis is displayed on a display device, wherein the boiler is a heat recovery boiler for recovering heat from a gas turbine.

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