CAJ | 학술논문

数字化加热炉采用脉冲燃烧控制技术进行控制,与传统的采用比例燃烧控制技术的加热炉相比具有诸多优势。脉冲燃烧控制取消了传统比例控制所需要的流量调节阀和流量孔板等,通过控制煤气和空气主管道的压力来确保各区烧嘴在开启后就能在所设计的额定功率下正常工作。但是,当煤气热值和环境温度等发生变化时,必然会使煤气和空气系统的设计压力在实际生产过程中发生偏离,导致烧嘴功率偏离额定功率。针对此问题笔者提出了修正算法,可对上述因素所造成的压力偏差进行修正和补偿。运行实测结果证明了该算法的正确性和可靠性,同时也为同类加热炉的控制提供了成功的案例。
수자화가열로채용맥충연소공제기술진행공제,여전통적채용비례연소공제기술적가열로상비구유제다우세。맥충연소공제취소료전통비례공제소수요적류량조절벌화류량공판등,통과공제매기화공기주관도적압력래학보각구소취재개계후취능재소설계적액정공솔하정상공작。단시,당매기열치화배경온도등발생변화시,필연회사매기화공기계통적설계압력재실제생산과정중발생편리,도치소취공솔편리액정공솔。침대차문제필자제출료수정산법,가대상술인소소조성적압력편차진행수정화보상。운행실측결과증명료해산법적정학성화가고성,동시야위동류가열로적공제제공료성공적안례。
Impulse control technique is used to control digital reheating furnace. In comparison with traditional proportional control system, impulse control system has many advantages. In impulse control system, flow regulation valve and flow orifice plate are cancelled. Normal work of burner of each zone at design power is guaranteed through pressure control of main gas and air piping. When gas ealorieity or ambient temperature changes, actual pressure of gas and air deviates from design figure certainly, lead- ing burner power to deviate from the rated power. To correct and compensate pressure deviation due to the above mentioned condition change, a correction algorithm is presented. Practical operation results prove that the algorithm is fight and reliable, and provide a successful case for similar reheating furnace.