The utility model relates to a tower body is provided with the removal of benzene benzene tower, and oil-water separation, oil-water separation section of the middle floor rising pipe is communicated with a lower benzene removal section through the ascending pipe, is arranged on the top of rising gas cap, there is a gap between gas cap and riser top up; riser sides of downcomer respectively. The tube and the overflow weir, the upper portion of the downcomer tray is communicated with the first layer, fluid channel is set between the lower floor section and oil-water separation, the riser and the downcomer is arranged between the corrugated plates packing are separated; symmetrically on both sides of the overflow weir is provided with 2 water outlet pipe, and the water outlet pipe outlet elevation below the top surface of the overflow weir the height of the overflow weir is communicated with the bottom of benzene removal section; the upper part is provided with a first layer of tray crude benzol reflux port. The top of the tower body is provided with a gas outlet. The utility model has the advantages of the benzene removal section and oil-water separation section is integrated in a tower body, can not only remove benzene from rich oil, but also contain high moisture in the separation of benzene, no extra set the oil-water separator, saving equipment investment, and the operation is simple.
【技术实现步骤摘要】
本技术涉及焦化行业粗苯蒸馏工艺中用的脱苯塔,尤其涉及一种集脱苯和油水分离功能于一体的新型脱苯塔。
技术介绍
脱苯塔是采用水蒸气直接加热的方法从富油中脱除苯的一种板式塔,但实际应用时,塔内水蒸气并不能在塔顶全部冷凝,部分水蒸汽会随着粗苯蒸汽由塔顶排出,进而在粗苯冷凝冷却器中随粗苯一起冷凝并回流至脱苯塔内。为避免塔内水分聚集,必须从脱苯塔的上部抽出部分液体到油水分离器进行脱水,分离出的油进入塔的下一层塔板,分离水排入污水系统处理。所以传统的脱苯塔都需要配备油水分离器,并且限于工艺要求,该油水分离器必须安装在靠近脱苯塔上部的一个很高的大型土建框架上,不仅操作复杂而且大大增加了投资成本。
技术实现思路
本技术提供了一种新型脱苯塔,将脱苯段和油水分离段集成在一个塔体内,不仅可以从富油中脱除苯,而且可以高效的分离粗苯中含有的水分,无需再额外设置油水分离器,节省设备投资,且操作简便。为了达到上述目的,本技术采用以下技术方案实现:—种新型脱苯塔,塔体内包括脱苯段,所述塔体内在脱苯段的上部还设有油水分离段,所述油水分离段的底板中部通过上升管与下部脱苯段连通,上升管顶部设升气帽,升气帽与上升管顶部之间留有缝隙;上升管两侧分别设降液管和溢流堰,降液管的上部连通第一层塔盘,下部与油水分离段底板之间设流体通道,上升管与降液管之间设波纹板填料进行分隔;溢流堰的两侧对称设置2个水引出管,且水引出管的出口标高低于溢流堰顶面高度,溢流堰的底部连通脱苯段;第一层塔盘上部设粗苯回流口,塔体顶部设气相出口。所述油水分离段的塔体外部设玻璃管界面计。与现有技术相比,本技术的有益效果是:将脱 ...
【技术保护点】
一种新型脱苯塔,塔体内包括脱苯段,其特征在于,所述塔体内在脱苯段的上部还设有油水分离段,所述油水分离段的底板中部通过上升管与下部脱苯段连通,上升管顶部设升气帽,升气帽与上升管顶部之间留有缝隙;上升管两侧分别设降液管和溢流堰,降液管的上部连通第一层塔盘,下部与油水分离段底板之间设流体通道,上升管与降液管之间设波纹板填料进行分隔;溢流堰的两侧对称设置2个水引出管,且水引出管的出口标高低于溢流堰顶面高度,溢流堰的底部连通脱苯段;第一层塔盘上部设粗苯回流口,塔体顶部设气相出口。
【技术特征摘要】
【专利技术属性】
技术研发人员:李晶晶,梁有仪,段有龙,于涛,
申请(专利权)人:中冶焦耐工程技术有限公司,
类型:新型
国别省市:辽宁;21
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