Method and system for diagnosing state of gas turbine
First Claim
1. A method of diagnosing a condition of a gas turbine, the method comprising the steps of:
- calculating a value of equivalent operating time using operation data of a gas turbine and process data during operation of said gas turbine, said process data being measured by sensors installed to said gas turbine during operation of said gas turbine, said value of equivalent operating time being a value at which a degree of damage of component parts composing said gas turbine is evaluated by operating time; and
diagnosing a condition of said gas turbine based on said calculated value of equivalent operating time and a predetermined management basis.
1 Assignment
0 Petitions
Accused Products
Abstract
An operation monitoring unit 11 for acquiring process data from sensors 10 installed to a gas turbine and operation information of the gas turbine; communication units 12, 14 for transmitting each of said two kinds of data on the gas turbine acquired in the operation monitoring unit 11; an analysis server 16 which calculates values of equivalent operating time using each of the two kinds of data obtained through the communication units 12, 14, the value of equivalent operating time evaluating a degree of damage of a diagnosed position for each of a plurality of degradation-and-damage modes, and calculates a value of whole equivalent operating time by adding the values of equivalent operating time for the individual degradation-and-damage modes; and a facility management unit 15 client-server systemized using the analysis server 16 and a WWW browser 20 or WWW server 19 are provided. By acquiring the above-described two kinds of data relating to the gas turbine during operating the gas turbine into the analysis server 16 through the communication units 12, 14, a highly accurate analysis result of damage condition can be speedy obtained from values of equivalent operating time for a plurality of degradation-and-damage modes. Further, it is also possible to provide convenience that a person in a remote site can speedy and easily view the analysis results using the WWW browser 20 through the client server system.
78 Citations
16 Claims
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1. A method of diagnosing a condition of a gas turbine, the method comprising the steps of:
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calculating a value of equivalent operating time using operation data of a gas turbine and process data during operation of said gas turbine, said process data being measured by sensors installed to said gas turbine during operation of said gas turbine, said value of equivalent operating time being a value at which a degree of damage of component parts composing said gas turbine is evaluated by operating time; and diagnosing a condition of said gas turbine based on said calculated value of equivalent operating time and a predetermined management basis. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system of diagnosing a condition of a gas turbine, the system comprising:
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sensors installed to the gas turbine; means for calculating values of equivalent operating time using process information detected by said sensors and operation information of the gas turbine, each of said values of equivalent operating time being a value at which a degree of damage of a diagnosed position for each of a plurality of degradation-and-damage modes is evaluated by operating time; means for calculating a value of whole equivalent operating time by adding said values of equivalent operating time for the individual degradation-and-damage modes; means for diagnosing the condition of the gas turbine based on said calculated value of whole equivalent operating time and a predetermined management basis; and means for displaying a result diagnosed by said diagnosing means. - View Dependent Claims (8, 9, 10)
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11. A system of diagnosing a condition of a gas turbine, the system comprising:
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an operation monitoring unit for acquiring process data from sensors installed to said gas turbine and operation data of said gas turbine; communication units for transmitting each kind of data acquired in said operation monitoring unit; an analysis server which calculates values of equivalent operating time using each kind of data transmitted through said communication units, each of said values of equivalent operating time being a value at which a degree of damage of a diagnosed position for each of a plurality of degradation-and-damage modes is evaluated by operating time, calculates a value of whole equivalent operating time by adding said values of equivalent operating time for the individual degradation-and-damage modes, and diagnoses the condition of the gas turbine based on said calculated value of whole equivalent operating time and a predetermined management basis; and a facility management unit having said analysis server and a WWW browser or WWW server. - View Dependent Claims (12)
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13. A method of diagnosing a condition of a gas turbine, the method comprising the steps of:
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calculating a value of first equivalent operating time relating to creep damage of a component part composing said gas turbine, using operation data of said gas turbine and process data measured by sensors installed to said gas turbine, while operating said gas turbine; calculating a value of second equivalent operating time relating to fatigue damage of the component part using said operation data and said process data; calculating a value of third equivalent operating time based on the value of first equivalent operating time and the value of second equivalent operating time; and diagnosing a condition of said gas turbine based on the value of third equivalent operating time and a management basis.
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14. A method of diagnosing a condition of a gas turbine, the method comprising the steps of:
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calculating values of equivalent operating time for one deterioration mode and another deterioration mode, using operation data of said gas turbine and process data measured by sensors installed to said gas turbine, while operating said gas turbine, each of said values of equivalent operating time being a value at which a degree of damage of a component part composing said gas turbine is evaluated by operating time; and diagnosing a condition of said gas turbine based on the calculated values of equivalent operating time and a predetermined management basis.
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15. A system for diagnosing a condition of a gas turbine, which comprises:
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means for calculating a value of first equivalent operating time relating to creep damage of a component part composing said gas turbine, using operation data of said gas turbine and process data measured by sensors installed to said gas turbine, while operating said gas turbine; means for calculating a value of second equivalent operating time relating to fatigue damage of said component part using said operation data and said process data; means for calculating a value of third equivalent operating time based on said value of first equivalent operating time and said value of second equivalent operating time; and means for diagnosing a condition of said gas turbine based on said value of third equivalent operating time and a management basis.
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16. A system for diagnosing a condition of a gas turbine, which comprises:
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means for calculating values of equivalent operating time for one deterioration mode and another deterioration mode, using operation data of said gas turbine and process data measured by sensors installed to said gas turbine, while operating said gas turbine, each of said values of equivalent operating time being a value at which a degree of damage of a component part composing said gas turbine is evaluated by operating time; and means for diagnosing a condition of the gas turbine based on the values of equivalent operating time calculated by said calculating means and a predetermined management basis.
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Specification