STATIC EMULATING CALCULATING AND FAULT FEATURE ANALYSIS FOR HIGHPRESSURE HEATER LEAKAGE

Through static emulating calculation of the highpressure heater,the influence of highpressure heater leakage upon its operation paeameters,such as outlet temperature of the feedwater,pressure loss of the steam extraction pipeline,and temperature of the drain,has been analysed.On the basis of analysis results,eigenvalues characterizing fault of highpressure heater leakage have been picked up,laying a foundation for knowledge base of the highpressure heater faults and for early diagnosis for its leakage faults.