CAJ | 학술논문

对水泥窑窑头余热锅炉（AQC）内颗粒撞击顺列光管进行了数值模拟,研究了不同横纵向间距、管束直径及颗粒入口速度等因素对飞灰颗粒撞击管束行为的影响,得出了飞灰颗粒横掠顺列光管管束的运动规律.采用飞灰颗粒通过率及碰撞率的无因次关联式来表征其与各个影响因素的关系.研究结果表明：管径及管间横向间距增大使得颗粒通过率增大,碰撞率降低;颗粒入口速度及纵向间距增大,使得颗粒通过率降低,碰撞率增大.
대수니요요두여열과로（AQC）내과립당격순렬광관진행료수치모의,연구료불동횡종향간거、관속직경급과립입구속도등인소대비회과립당격관속행위적영향,득출료비회과립횡략순렬광관관속적운동규률.채용비회과립통과솔급팽당솔적무인차관련식래표정기여각개영향인소적관계.연구결과표명：관경급관간횡향간거증대사득과립통과솔증대,팽당솔강저;과립입구속도급종향간거증대,사득과립통과솔강저,팽당솔증대.
Simulation study was conducted on flue gas particle impacting the aligned bare tube bundles in AQC （ Air Quenching Chamber） heat recovery steam generator. The effects of transverse and longitudinal spaces of tubes, diame- ters of tubes and particle velocities on the particles impacting the tubes were investigated. The movement law of the flue gas particles crossing bundles of bare tubes in aligned arrangement was obtained by numerical calculation. The dimen- sionless relation betweem passing rate and impacting rate was used to represent the relationship with the above factors. The results show that with the increase of the tube diameter and transverse space, the passing rate rises and the impac- ting rate decreases, and that the passing rate and the impacting rate represent the opposite consequences when the parti- cle velocity and the longitudinal space rises.