The numerical simulation of gas-liquid phase flow field of corrugated plate demister and mesh mist eliminator in ammo-nia-oil separator is calculated by FLUENT software,and the effects of structure parameters and operating parameters of demister on the inlet and outlet pressure drop and separating efficiency are investigated. The results show that the pressure drop increases along with the increase of inlet gas velocity of corrugated plate demister and decreases with the increase of turn angle of blade,the separating efficien-cy increases along with the increase of liquid drop diameter and inlet gas velocity. For the mesh mist eliminator,the pressure drop in-creases along with the increase of inlet gas velocity,and the separating efficiency increases along with the increase of inlet gas velocity and liquid drop diameter. The overall separating efficiency increases by combining with corrugated plate demister and mesh mist elimi-nator,and furthermore,the overall separating efficiency enhances greatly along with the increase of liquid drop diameter.%采用FLUENT软件对氨油分离器中波纹板除雾器和丝网除雾器内的气液两相流场进行数值模拟计算,考察除雾器的结构参数与操作参数对进出口压降和分离效率的影响规律.结果表明:波纹板除雾器的压降随入口气速的增大而增大,随叶片转折角度的增大而减小,分离效率随液滴直径的增大而增大,随入口气速的增大而增大,随叶片转折角度的增大而减小;丝网除雾器的进出口压降随入口气速的增大而增大,分离效率随入口气速的增大而增加,随入口液滴直径的增大而增加;波纹板和丝网组合在一起的整体分离效率提高,且随着液滴直径的增大,整体分离效率上升很快.
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