CAJ | 학술논문

针对无称重给煤机机组因无煤量信号而无法实现燃烧自动的难题,对其燃烧控制系统进行了重建,得到了基于给煤机转速的风煤比控制方案,并在某无称重给煤机的500 MW超临界机组进行了给煤系统重建方案.结果显示：重建的风煤比控制系统解决了原系统中燃烧无序控制状态,使锅炉效率提高了0.38%,厂用电率下降了0.16%;证明该燃烧控制重建方案对解决同类问题具有较高的参考价值.
침대무칭중급매궤궤조인무매량신호이무법실현연소자동적난제,대기연소공제계통진행료중건,득도료기우급매궤전속적풍매비공제방안,병재모무칭중급매궤적500 MW초림계궤조진행료급매계통중건방안.결과현시：중건적풍매비공제계통해결료원계통중연소무서공제상태,사과로효솔제고료0.38%,엄용전솔하강료0.16%;증명해연소공제중건방안대해결동류문제구유교고적삼고개치.
To solve the problems existing in direct-fired boilers with coal feeder of non-weighing type that auto-burning program can＇t be implemented due to lack of coal amount signal,a rebuilding scheme according to the ratio of primary air（PA） flow to coal flow based on coal feeder speed was proposed for its combustion control system,which was later on applied to a 500 MW supercritical power unit.Results show that the rebuilt control system can effectively improve the original disorder combustion,and help to raise the boiler efficiency by 0.38% and reduce the house power consumption by 0.16%.This may serve as a reference for rebuilding of similar combustion control systems.