Design And Implementation Of The Renovation Project For Heating Boilers In Qingdao District

Because of the old equipment,the environmental protection measures are not up to standard,and the waste of resources is serious,the traditional PID control method is difficult to achieve the desired control effect.Therefore,it is very important to study the control system of boiler combustion with different control methods in order to realize the clean combustion,optimize the boiler control system,make the environmental protection standard and reduce the pollution to the air.Aiming at the characteristics of hot water boiler are introduced in detail,the hot water boiler heating effect can flexibly adapt to changes in the external environment temperature and boiler automatic adjustment in water quality,thus saving fuel and also can ensure the heating quality requirements.The system uses different control methods for variables with different characteristics.Due to the heating boiler combustion system has the characteristics of nonlinear,large delay,strong coupling,PID control algorithm is difficult to achieve the ideal,and the fuzzy control algorithm has strong robustness,can greatly reduce the system parameters and external force disturbance,and decrease the impact of parameter change on the control effect.In order to control the combustion,the time-varying system can achieve the desired control effect.The fuzzy control algorithm is adopted to control the combustion process of boiler,so as to achieve and achieve the best control effect,so as to achieve the purpose of energy saving and emission reduction.In addition,the system uses the traditional PID and fuzzy PID control method to control the make-up water pump and the circulation pump.Moreover,this system takes measures in the aspects of alarm and protection,and also ensures the safety of boiler combustion process.The above control methods were applied in Qing Dynasty,and the effect was good.Practice has proved that the control method adopted by each subsystem of the system can ensure the safe and stable operation of the hot water heating boiler andimprove the thermal efficiency of the system.