| According to the online monitoring of fouling on heating surface of supercritical boiler, monitoring model of furnace slagging was established based on the advanced furnace calculation-in-sections method with the flue temperature of furnace outlet and working fluid temperature of water wall as the key parameter, the dynamic monitoring model of convective heating surface realizing the fouling monitoring under any load condition was established based on the analysis of the dynamic process, the practical calculation was done in Zouxian 1000MW ultra supercritical boiler and the accuracy of monitoring models were verified. Based on this result, the supercritical boiler fouling monitoring system including the functions of online operation monitoring and sootblowing guiding was developed. |
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