CAJ | 학술논문

针对袋式除尘器喷吹气流不均匀性的问题，利用CFD数值模拟建立含有不同结构参数的喷吹管气流分布模型，通过正交试验方法，选取了喷吹管管径D，喷嘴孔径d，喷嘴个数N，喷嘴间距L及喷嘴长度H为主要因素，选取L25（56）正交表得到25组方案，用方差分析法找到了影响喷吹气流不均匀性的主要因素，并采用流量修正和重复迭代的方法对喷嘴孔径进行优化设计，获得较好的气流量分布，为喷吹管设计提供了参考；对修正后的喷吹管，得到不同入口流量下的喷吹管气流不均匀的变化情况。
침대대식제진기분취기류불균균성적문제，이용CFD수치모의건립함유불동결구삼수적분취관기류분포모형，통과정교시험방법，선취료분취관관경D，분취공경d，분취개수N，분취간거L급분취장도H위주요인소，선취L25（56）정교표득도25조방안，용방차분석법조도료영향분취기류불균균성적주요인소，병채용류량수정화중복질대적방법대분취공경진행우화설계，획득교호적기류량분포，위분취관설계제공료삼고；대수정후적분취관，득도불동입구류량하적분취관기류불균균적변화정황。
Aiming at the problem of uniformity in injection airflow of bag filter , the CFD numerical simulation was used to establish an airflow distribution model in injection pipe with different structural parameters of bag filter . Through the orthogonal testing method , the ejection pipe diameter D, the nozzle diameter d, the number of nozzle N, the nozzle spacing L and nozzle length H were chosen to be the main factors .So 25 sets of programs were de-signed according to L25 ( 56) orthogonal table.The main factors affecting the uniformity in injection airflow were acquired with the method of variance analysis .With the methods of flow rate correction and repeated iteration , the design of nozzle diameter was optimized to obtain the better airflow distribution , which can provide reference for de-sign of injection pipe .For the corrected injection pipe , the change in uniformity of injection pipe airflow under dif-ferent inlet flow rate was obtained .