泡罩垂直筛板性能研究  

Study on performance of bubble-cap vertical sieve trays

作　　者：彭军[1] 褚雅志[1] 马晓迅[1] 董立创 付亚玮 

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安思瑞迪精馏工程有限公司,陕西西安710075

出　　处：《化学工程》2010年第7期5-8,共4页Chemical Engineering(China)

摘　　要：选用BVS-1型和BVS-2型泡罩垂直筛板,用水和空气模拟塔内气液二相流动工况,在一定时间内采集雾沫夹带量和漏液量,研究其流体力学性能和操作弹性。结果表明:前者操作弹性比大于2,最大可达到3.5;用微差压计测得在操作弹性范围内的总板压降为850—1 400 Pa;采用氧解吸方法测试单板效率,对流体力学性能较好的BVS-1型泡罩垂直筛板和现有的垂直筛板在传质性能上进行了比较,前者比后者的单板效率提高了约20%。The hydromechanics performance and operating range of BVS-1 and BVS-2 types of bubble-cap vertical sieve tray were investigated experimentally with air and water as simulated gas and liquid fluid,by means of gathering entrainment volume and liquid-weeping volume in a given time.The result shows that the operating range ratio of the BVS-1 is greater than 2,maximum 3.5;the total pressure drop measured by mini pressure gauge in operating range is 850-1 400 Pa.The tray efficiency was measured by using the oxygen-desorbing method,the mass transfer performance of the BVS-1 was compared with that of the current vertical sieve tray.The tray efficiency of BVS-1 is about 20% higher than that of the current vertical sieve tray.

关 键 词：垂直筛板 泡罩 塔盘 压降 漏液点 雾沫夹带 板效率 

分 类 号：TQ053.5[化学工程]