Internal anomaly diagnosing apparatus of steam turbine

Abstract

Abstract PURPOSE: To detect the anomaly of a turbine by arranging the machine-state watching device of a turbine and detecting the reduction of the internal efficiency of a steam turbine. CONSTITUTION: The steam generated in a boiler 1 expands in a steam turbine 3 and performs work and drives a generator 4. The signals from a main steam pressure detector 5, temperature detector 6, first stage pressure detector 7, exhaust pressure detector 8, and a temperature detector 9, i-s chart signals on the basis of the design values of pressured and temperature at each point described above, and stored in a memory device 11, and the load signals from an output detector 12 are applied to a an arithmetic unit 10, and the slope of the desingened expansion line in the i-s chart corresponding to the load signal and the slope of the actual turbine expansion line are compared, and when anomaly is generated, the comparison value obtained is applied to a display apparatus 13, and indication and recording are performed in a recorder 14. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Masaru Tanaka

Bibliographic Details