基于FLUENT数值模拟的袋式除尘器喷管最佳喷吹高度研究  

Study on the best blowing height of nozzle in bag filter based on FLUENT numerical simulation

作　　者：尹刚 袁淑娟[1,2] 罗斌 何飞[4] 李卓蔓 尹松[6] 沈重衡 张艳怡 YIN Gang;YUAN Shujuan;LUO Bin;HE Fei;LI Zhuoman;YIN Song;SHEN Chongheng;ZHANG Yanyi(State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing 400044;College of Resources and Environmental Science,Chongqing University,Chongqing 400044;Sichuan Siwei Environmental Protection Equipment Co.,Ltd.,Suining Sichuan 629000;Zunyi Aluminum Co.,Ltd.,Zunyi Guizhou 563100;College of Humanities and Development Studies,China Agricultural University,Beijing 100083;Shanghai Jiuyuan Instrument Equipment Co.,Ltd.,Shanghai 200051;The School of Finance,Renmin University of China,Beijing 100872;Chongqing Yangzhen Technology Development Co.,Ltd.,Chongqing 400030)

机构地区：[1]煤矿灾害动力学与控制国家重点实验室,重庆400044 [2]重庆大学资源及环境科学学院,重庆400044 [3]四川省四维环保设备有限公司,四川遂宁629000 [4]遵义铝业股份有限公司,贵州遵义563100 [5]中国农业大学人文与发展学院,北京100083 [6]上海久远仪器设备有限公司,上海200051 [7]中国人民大学财政金融学院,北京100872 [8]重庆扬臻科技发展有限公司,重庆400030

出　　处：《环境污染与防治》2018年第4期373-376,382,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.50728504)

摘　　要：以滤袋壁面峰值压力作为评价滤袋清灰强度的标准,采用FLUENT软件数值模拟优化袋式除尘器喷管的最佳喷吹高度。结果表明:对于长度为3m的短滤袋,在喷吹压力和喷管类型为(0.3 MPa,2型)和(0.4 MPa,1型)时,最佳喷吹高度为200mm;对于长度为5m的长滤袋,在喷吹压力和喷管类型为(0.4MPa,2型)和(0.3MPa,3型)时,最佳喷吹高度为250mm;实物测试系统实验验证表明,实际测量的压力和模拟得到的压力之间的相对误差均小于2%,模拟成功。With wall peak pressure of filter bags as evaluation standard,the best blowing height of nozzle in bag filter was analyzed by using FLUENT numerical simulation.Results showed that for short bag(3 m),the best blowing height would be 200 mm when jetting pressure was 0.3 MPa with Type 2 nozzle or jetting pressure was 0.4 MPa with Type 1 nozzle.For long bag(5 m),the best blowing height would be 250 mm when jetting pressure was 0.4 MPa with Type 2 nozzle or jetting pressure was 0.3 MPa with Type 3 nozzle.Entity test showed that the relative errors were all smaller than 2%between measured values and simulated values,indicating that the simulation succeeded.

关 键 词：峰值压力 负压 耗气量 最佳喷吹高度 

分 类 号：X701.2[环境科学与工程—环境工程]