Combining Diagnosis Methods for the Fouling on Flow Path of Steam Turbine

Tao Yang; Jian Qun Xu; Ling Li; Ke Yi Zhou; Yong Feng Shi

doi:10.4028/www.scientific.net/AMR.516-517.577

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 516-517Combining Diagnosis Methods for the Fouling on...

Combining Diagnosis Methods for the Fouling on Flow Path of Steam Turbine

Abstract:

The fouling on flow path of steam turbine would lead to the changes of thermal parameters and significantly deteriorated efficiency. In this paper, a qualitative analysis of fouling on flow path based on measured parameters was described for the preliminary diagnosis, and the zooming thermoeconomic diagnosis model combined with the equivalent flow area diagnosis model was proposed to diagnose the specific location of fault. Then the flow performance of a 630 MW supercritical unit was analyzed, and the possible fouling stages were also discussed according to the thermoeconomic diagnosis and quantitative analysis. The result of diagnosis was consistent with the situation of uncovering cylinder, which indicated that though the actual system was complex, the coupling multiple faults of flow path could be diagnosed by combining the above diagnosis models.

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Periodical:

Advanced Materials Research (Volumes 516-517)

Pages:

577-584

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.516-517.577

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Online since:

May 2012

Authors:

Tao Yang, Jian Qun Xu, Ling Li, Ke Yi Zhou, Yong Feng Shi

Keywords:

Flow Path, Fouling, Steam Turbine, Thermodynamic Parameters, Thermoeconomic

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