Abstract
When the supercritical boiler operates, it's easy to lead the metal temperature of outlet of the vertical water-cooling wall tube to fluctuate considerably, and even makes the pipe wall overheating and fatigue damage on adjusting the running parameters continually. With studying the sensitivity of the running parameters for the metal temperature of vertical water wall tube, the running parameters could be adjusted to control the fluctuate range of the outlet metal temperature under different burner offset angles. The LS-SVM (Least Square Support Vector Machines) was proposed to construct a model for the outlet metal temperature, based on this model, the relation between the running parameters and the outlet metal temperature was analyzed under different burner offset angles. So the sensitivity of the running parameters for outlet metal temperature could be obtained under different burner offset angles. There is instructional meaning exists in the result for the control and the adjusting, which are on the outlet metal temperature of vertical water wall tube in supercritical boiler.
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