火电厂烟气流量测量中整流器的试验研究  

Experimental Study on Rectifier of the Coal-fired Plant Gas Flow Measurement

作　　者：郑海明[1] 杨婧君 Zheng Haiming;Yang Jingjun(School of Energy Power and Mechanical Engineering,North China Electric Power University,Baoding Hebei 071003,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003

出　　处：《科技通报》2017年第9期69-72,137,共5页Bulletin of Science and Technology

基　　金：国家自然科学基金项目(11174078);河北省自然科学基金项目(E2012502046);中央高校基本科研业务费用专项资金项目(12MS102)

摘　　要：火力发电厂烟气排放流量是环保监测的重要数据,烟气流量测量装置大多安装在烟囱前的烟道上。一般的烟气流量测量装置对于被测装置前后的直管段有一定的要求,当直管段不能满足要求时,只能考虑加装整流器进行调整。文中对整流装置的截面形状、长度、高度等因素对于烟气整流效果的影响及整流器的阻力特性进行了试验研究。结果表明:相同长度条件下,蜂窝状整流器有着更好的整流效果;蜂窝状整流器的蜂窝六边形边长越小,长度越长,则其整流效果越好,但是相应的阻力也会增加。Thermal power plant flue gas emissions flow is an important of environmental monitoring data,most of the flue gas flow measurement devices are installed in front of the chimney flue.Enoughupstream and downstream straight pipe is necessary for flue gas flow measurement,otherwise rectifiershould be used.Test researches on flue rectifying efficiency and characteristic of resistance of rectifierparameters such as shape,height and length are carried out.The results showed that,the same lengthcondition,honeycomb rectifier has a better rectification effect;honeycomb hexagon side length of therectifier is smaller side,the longer the length,the effectiveness of the rectifier is better,but thecorresponding resistance will increase.

关 键 词：烟气流量测量 整流器 数值模拟 阻力 

分 类 号：TH814[机械工程—仪器科学与技术]