Title:
蒸気タービンの劣化現象識別のための診断方法
Document Type and Number:
Japanese Patent JP3958682
Kind Code:
B2
Abstract:
A diagnosis method is for detecting ageing symptoms in a steam turbine. The efficiency and the steam flow rate of an aged steam turbine is compared to the efficiency and the steam flow rate of a relatively new steam turbine. The efficiency and the steam flow rate are calculated using readings at several operating points on the steam turbine. The time history of the efficiency and steam flow rates applied in contrast to parameters such as the peripheral. Mach number, pressure figure and adjustment of the inlet valve provide information on the extent of ageing of the steam turbine.
Inventors:
Gilbig, Paul
Application Number:
JP2002520182A
Publication Date:
August 15, 2007
Filing Date:
August 06, 2001
Export Citation:
Assignee:
Siemens Aktiengesellschaft
International Classes:
F01D17/26; G05B23/02; F01D25/00; G07C3/00
Domestic Patent References:
| JP3100306A | ||||
| JP9053413A | ||||
| JP56126606A |
Other References:
三輪光砂,ガスタービンの基礎と実際,日本,(株)成山堂書店,1989年 3月18日,116頁
Attorney, Agent or Firm:
Iwao Yamaguchi
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