急冷塔喷雾蒸发过程模拟及喷嘴流量配比研究  

Simulation Process of Spray Evaporation in the Quench Tower and Proportion Research of Nozzle Flow

作　　者：王炳忠 毛宇 胡新生 代博文 WANG Bing-zhong;MAO Yu;HU Xin-sheng;DAI Bo-wen(Naval Aviation University Qingdao Campus)

机构地区：[1]海军航空大学青岛校区

出　　处：《化工机械》2024年第2期214-218,251,共6页Chemical Engineering & Machinery

摘　　要：基于危险区域占比和出口温度均匀性这两个指标,对急冷塔内的喷嘴流量配比进行了优化研究;并通过改变喷雾粒径和锥角,得到不同工况下的流量配比系数。结果表明:逆流喷射时,配比从10%~100%变化,危险区域占比呈现出先增大后减小并逐渐稳定的趋势;配比40%时,危险区域占比达到峰值,且该峰值会随喷雾粒径和锥角的增大而增大;配比超过70%时,危险区域占比基本降至5%以下,此时受喷雾参数的影响较小。当喷雾粒径较大或锥角较小时,会影响出口温度的均匀性。当流量配比处于70%~90%,5种工况下的评价系数均处于90%以上。Based on the two indicators of dangerous area and the uniformity of export temperature,the nozzle flow ratio in the quench tower was optimized.Through changing spray particle size and cone angle,the flow ratio coefficient under different conditions was obtained to show that,as for the countercurrent spray,the ratio changes from 10%to 100%,and the proportion of dangerous areas shows a trend of increased first,then decreased and gradually stable.When the flow ratio is 40%,the proportion reaches the peak which will rise with the increase of both spray particle and cone angle;when the flow ratio exceeds 70%,the proportion will basically decrease to be less than 5%.At this time,the impact of parameters becomes small.When the spray size becomes large or the cone angle is small,it will influence uniformity of the export temperature.When the flow ratio stays at 70% to 90%,the evaluation coefficients under five working conditions stay above 90%.

关 键 词：急冷塔 喷雾蒸发 喷嘴流量 流量配比 

分 类 号：TQ053.5[化学工程]