The Analysis on Steam Excitation of No.4 Unit in Suizhong Power Plant

In recent years,with the development of economy and technology,and the expansion of network capacity in China,the construction of the thermal power units have reached the level of 1 000 MW capacity.The main causes of steam excitation is analyzed through comparisons of excitation characteristics of ultra supercritical units with that of units of the same type,in consideration of steam flow excitation phenomenon of No.4 Unit and by tests.