| 旋流塔板的板效率 |
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| 引用本文： | 汪大翚,贾缨,杜有根,鲍慧敏,谭天恩. 旋流塔板的板效率[J]. 化工学报, 1983, 34(3): 212-220 |
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| 作者姓名： | 汪大翚 贾缨 杜有根 鲍慧敏 谭天恩 |
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| 作者单位： | 浙江大学,浙江大学,浙江大学,浙江大学,浙江大学 |
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| 摘 要： | 本文试验以水冷却饱和热空气,在φ300mm有机玻璃塔中测定了不同结构的五种旋流塔板和两种筛板的板效率.试验范围为:喷淋密度U=7.17—135m~3/m~2h;空塔气速Ws=0.52—4.21m/s.比较系统地研究了气液负荷、塔板结构对板效率的影响,获得了适宜的结构参数;对喷射区域的试验数据进行了关联;将旋流塔板与筛板的性能作了比较;对四川化工厂的工业试验进行了小结;为旋流塔板的设计提供了基础数据.还介绍了一种简便又易于测准的板效率测定方法.
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The Efficiency of Rotating-Stream Tray(RST) |
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| Wang Dahui,Jia Ying,Du Yougen,Bao Huimin and Tan TianenZhejiang University. The Efficiency of Rotating-Stream Tray(RST)[J]. Journal of Chemical Industry and Engineering(China), 1983, 34(3): 212-220 |
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| Authors: | Wang Dahui Jia Ying Du Yougen Bao Huimin Tan TianenZhejiang University |
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| Abstract: | The rotating-stream plate (RSP) was first developed in 1970 to eliminate the entrained liquid droplet for a turbulent bed contactor in laboratory, and extended to use successfully as trays of plate column. In 1974, it was tested for absorption in industry. Because of its remarkable performances including high load, low pressure drop, high flexibility and long operating period, the range of its application has been rapidly enlarged. It has played an important role in industry such as heat and mass transfer operation, entrainment elimination and dust removal.The method of cooling hot saturated air by cold water, which is convenient, speedy and quite accurate, is used to measure the tray efficiency based on gas phase. A 300mm diameter perspex column fitted with three test trays spaced 300 mm apart was used. Above the test section, an entrainment eliminator of the RSP type was located. The liquid load U varied from 7.17 to 135m3/m2h (corresponding to liquid flow rate L from 0.5 to 9.4m3/h). The superficial gas load factor F, varied from 0.56 to 4.51 kg0.5/m0.5s(correspond-ing to superficial gas velocities of 0.52 to 4.21m/s).Five different RSTs and two sieve trays were investigated. The effects of gas load, liquid load, structure of the downcomers and elevation angle on the tray efficiency were systematically studied and the experimental data in the jet region were correlated. The normal operatingrange and the performance of the RST were compared with those of the sievetrays and the industrial test in Sichuan Chemical Plant were briefly summarized. |
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