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Industrial Boiler Intelligence Command System's Exploit And Research

Posted on:2009-11-07Degree:MasterType:Thesis
Country:ChinaCandidate:T JiFull Text:PDF
GTID:2178360272971654Subject:Computer technology
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This paper analyses the control system milestone in the development and abroad and China's current industrial boiler operation,a brief introduction of the more popular at home and abroad several boiler combustion control systems and intelligent computer control system in the field of industrial boilers control of the profile and significance.Qilu Motor Manufacturing Co.,Ltd.10 tons of the existing two coal-fired hot water boiler assume the task of heating in winter,because of the nature of special operations personnel and limited technical level, plus the original boiler design,installation there is a defect,even in practice In the course of the use of boilers have been unable to achieve the rated output power.Secondly,with the energy conservation efforts undertaken,in order to satisfy the requirements of energy saving targets, in raising the level of boiler combustion,on the basis of the boiler operation also proposed in the original energy-saving Jiemei on the basis of the request.Small and medium-sized boilers for the energy-saving automated control relays are generally used to control or ordinary PID instrument control,low degree of automation,control poor results,due to coal-burning boilers,is a very complicated,boiler operation process is a complex nonlinear,Time-varying,the lag,strong-coupling system,coal, equipment condition,load conditions are always changing,both at home and abroad in small and medium-sized industrial boilers on the implementation of the system are not an intelligent self-learning ability, to the boiler The stability of energy-saving emissions control has brought great difficulties,the performance of these products in the debugging stage for only a short period of time to maintain the stability of regulation,long-term automatically put into operation it is hard to achieve,stability,energy conservation is even more difficult.And the relative maturity of the Power Station DCS migrate to these small and medium-sized boilers on the economic and technical conditions,nor the implementation of the possibility.Therefore,although many enterprises have been boiler energy transformation,but the basic operation of these systems in the state of manually.Against the above requirements to Qilu Motor Manufacturing Co.,Ltd. SZL600-10/115/70-AⅡ-type hot water boiler intelligent computer control system design and development as an example,a detailed use of neural networks and industrial PC(IPC) As the main control of the simplified distributed control system(DCS) design idea.Through the electronic control,computer control,computer software and algorithms,fieldbus communications technology optimization integration,formed a good cross-limiting parallel cascade PID closed-loop control of the system through the fuzzy control experts and system control technology,to effectively solve Fuzzy conventional PID algorithm since the stability of poor,self-optimizing slow,wide-load capacity of poor adjustment problems with the system bus at the scene and DCS and PLC control,a single boiler control low-cost,high reliability characteristics,And easy to control multiple parallel boiler system and network control.The system provided by the man-machine interface features,and industrial boilers, industrial control computer and the organic unity of management.Ultimately,the system by the monitoring center in Shandong Province energy detection,input coal-saving average rate of 11.42 percent, energy-saving rate of 15.89 percent,to energy saving,environmental protection,safety,the purpose of economic operation.Implementation of the intelligent control of the boiler,coal-saving reached a power-saving purposes.
Keywords/Search Tags:boiler, neural networks, intelligent control
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