CAJ | 학술논문

试验研究了一台将全部蒸发埋管布置在回料阀中的11,t/h 返料换热型循环流化床工业锅炉的燃烧传热特性.结果表明,锅炉分离器及回料阀中均存在显著的燃烧份额,并随锅炉负荷的变化而变化;回料阀埋管内工质蒸发量随锅炉负荷增加而显著增加,但其蒸发份额基本保持稳定;基于回料阀内循环灰碳平衡,对锅炉满负荷条件下的循环灰量进行了估算,并对循环灰特性及锅炉低负荷性能进行了探讨.
시험연구료일태장전부증발매관포치재회료벌중적11,t/h 반료환열형순배류화상공업과로적연소전열특성.결과표명,과로분리기급회료벌중균존재현저적연소빈액,병수과로부하적변화이변화;회료벌매관내공질증발량수과로부하증가이현저증가,단기증발빈액기본보지은정;기우회료벌내순배회탄평형,대과로만부하조건하적순배회량진행료고산,병대순배회특성급과로저부하성능진행료탐토.
An 11,t/h industrial CFB boiler with a heat exchanging loop seal,in which all the evaporating immersed tubes were installed,has been introduced in the paper. The studies on its combustion and heat transfer characteristics indicated that considerable combustion fractions existed in cyclone and loop seal and changed with boiler load;the evaporation capacity of immersed tubes increased obviously with boiler load,while the corresponding evaporation fraction remained almost constant. The mass flow of circulating solids at full load was calculated based on the carbon balance in loop seal,the circulating solid characteristics and boiler low-load performance were also discussed.