Design And Implementation Of Circulating Fluidized Bed Boiler Controlling System

Circulating fluidized bed boiler is a high efficiency, clean and low pollution combustion technology which is rapidly developed over the last ten years and has an important position in energy development and environmental protection strategies, this paper designs the circulating fluidized bed boiler controlling system from the point of view of the equipment security and controlling effect.Firstly, this paper analyzed the circulating fluidized bed boiler designing features and technology, taking tire factory in Guangdong Conghua 130t/h circulating fluidized bed boiler design for investigation object, and discussing circulating fluidized bed boiler on the request of control from circulating fluidized bed boiler combustion rationale as start.Secondly, had given the hardware design and software design scheme of circulating fluidized bed boiler control system, PC monitoring system interface design, Honey-well HC900 PLC control system design, and realized Honey-well HC900 PLC control algorithm by software configuration. In allusion to the characteristics of circulating fluidized bed boiler control, analyzed the fuzzy PID control strategy, design fuzzy PID controller, used the project correct methods modified the parameters of PID regulator, adjusted the parameters of proportion regulator by fuzzy controller when the system was running, and verified the effectiveness of the arithmetic by computer simulation.Finally, this paper had given real-time control curves maps, the running results showed that the control system hardware design and software design was effective and practical, and the results sufficed the techniques requirements of circulating fluidized bed boiler operation.