Research and Application of Wall Temperature Control in Natural Circulation Boilers
Natural circulation boiler is a simple and economical boiler form,which uses natural convection to achieve heat transfer.The control of wall temperature is an important problem in natural circulation boilers.Correct wall temperature control can ensure the safe operation of the boiler,extend the service life of the boiler and improve the thermal efficiency of the boiler.There are two main control methods for natural circulation boiler wall temperature:one is based on traditional PID control,and the other is based on intelligent algorithm.The traditional PID control method needs to manually adjust the PID parameters according to the characteristics of the boiler and working conditions,which has a large workload,long adjustment time and limited control effect.The methods based on intelligent algorithms,such as neural network,fuzzy control,genetic algorithm,etc.,can quickly learn and adapt to the working conditions of the boiler,improve the control accuracy and stability.
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