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Chemcial Industry and Engineering 2017, Vol. 34 Issue (2) :79-83    DOI: 10.13353/j.issn.1004.9533.20151074
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Analyses of Flow Field and Pressure Drop in the Wave-Plate Mist Eliminator of New Type
Liu Liyan, Zhao Chenguang
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract 

SST k-ω turbulence model was adopted to simulate the hydrodynamics in the wave-plate mist eliminator with or without auxiliary capture by considering the gas-liquid two-phase flow as single flow. With this model, the gas flow field and pressure drop in the wave-plate mist eliminator were obtained. Under different entrance gas speed of 2 m/s and 4 m/s, maximum gas speed increased respectively from 7.32 m/s and 14.80 m/s to 8.97 m/s and 18.57 m/s when there were auxiliary captures in the channel, and its sites also increased. At the meantime, the region of high fluid speed became larger, whereas the region of low speed became smaller. The gas speed near the wall increased from 1.5 m/s to 3.5 m/s at the entrance speed of 2 m/s. Then we discovered the change tendency of the pressure drop following the capture height at different gas speeds, and that it had similar tendency between the first stage and the third stage, meanwhile the situation was significantly different in the second stage. The conclusion above could be applied to the practical design.
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Liu Liyan
Zhao Chenguang
Keywords： auxiliary capture；   wave-plate mist eliminator；   distribution of flow field；   pressure drop     
Received 2015-04-29;
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Liu Liyan, Zhao Chenguang.Analyses of Flow Field and Pressure Drop in the Wave-Plate Mist Eliminator of New Type[J]  Chemcial Industry and Engineering, 2017,V34(2): 79-83
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