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产品精制装置

产品型号:

A002

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产品精制装置


产品精制装置包括了三部分:汽油脱硫醇部分、干气及液化石油气脱硫部分及柴油精制部分,包括了干气脱硫塔、气柜气脱硫塔、液化石油气脱硫抽提塔、氧化塔、富液闪蒸罐、二硫化物分离罐、尾气吸收罐,这些塔涵盖了板式塔和填料塔,主要是填料塔,涉及到的主要内构件包括金属散堆填料、聚结填料、液体分布器、液体收集器、填料压栅、填料格栅支撑、塔盘组合件(浮阀、塔盘板、降液板、受液盘、液封盘以及对应的支撑梁)、集油箱、气液进料分布器及分布管、螺栓、螺母、卡子、垫圈等紧固件。

● 主要散堆填料

(1)金属扁环散堆填料

不锈钢扁环散堆填料包括QH-1型、QH-2型(又称梅花扁环,即内弯弧形筋片扁环填料)和QH-3型。这种填料用于低界面张力体系的液液萃取时性能明显好于其它散堆填料,扁环填料适合于液液萃取过程,也适用于气液传质过程。

(2)金属矩鞍环散堆填料

金属矩鞍环散堆填料外形为环形与鞍形构成的环鞍形结构,内有舌形筋,由两段曲线构成,上弧为椭圆曲线,下弧为半圆曲线。成品矩鞍环散堆填料表面光滑、无锈蚀痕、无裂痕,边缘无毛刺。该填料具有通量大、压降低、效率高等优点,填料强度和刚性较好,是目前应用广的一种散堆填料。

(3)金属鲍尔环散堆填料

金属鲍尔环环散堆填料外形为为高度与直径相等的,表面开有若干窗口的圆柱体。该填料是本世纪四十年代德国BASF公司开发的采用金属薄板冲制而成,一般开孔的总面积约为整个环壁面积的35%左右。与同规格的拉西环填料相比,由于鲍尔环填料在环壁上开了许多窗孔,使得塔内的气体和液体能够从窗口自由通过,所以填料层内的气、液体分布情况比拉西环填料有了较大的改善,其分离性能明显提升,鲍尔环填料仍是目前被采用的主要环形填料之一。

(4)液体分布器

槽式液体分布器

槽式液体分布器由主槽(一级槽)及分槽(二级槽)组成,主槽置于分槽之上。回流液和加料液体由置于上方的进料管中进入主槽中,再由主槽按分比例分配到各分槽中。二级槽式分布器结构简单,易于从人孔中进塔安装;升气通道均匀,自由截面积大。在填料塔中常搭配液体收集器使用,能较好的对进料液进行充分的收集和均匀分布。槽式液体分布器是综合性能比较优的一种液体分布器。

槽盘式液体分布器

槽盘式气液分布器是一种重力式液体分布器,分布器是由矩形升气管、角钢和槽钢形导液管、燕尾式或槽钢形挡液帽、铺板、支撑圈和支撑梁组成。槽盘式气液分布器具有气体及液体分布均匀、压降低、抗夹带、占位低、安装方便等优点,同时适于进料、侧线采出及液体收集再分布等条件。应用于填料塔中,是目前综合性能比较优的一种液体分布器之一。

(5)液体收集器

液体收集器应用于填料床层之间,它使填料床层间的气体分布均匀、液体混合均匀,液体收集器和槽式液体分布器配合使用有利于填料床层间气液的均匀分布。

(6)填料压栅

填料压圈采用通透式栅板结构,这种结构占位空间低,通透性强,不会影响填料的气液传质,还可以减小填料的端效应。

(7)填料支撑

填料格栅支撑:填料格栅支撑应用于填料塔中,是目前比较好的规整填料支承之一,填料格栅支撑具有自由截面积大,且填料驼峰支撑:驼峰支撑应用于填料塔中,是目前较好的散堆填料支承之一,驼峰具有长条形侧孔,用钢板冲压成型,其液体通量可达200m3/m2h,大压降为69Pa,适用于25mm以上的各种散堆填料,因此侧孔宽度以25mm填料不致漏出为度,对于较小的填料,可在驼峰上覆盖一层小尺寸的钢板网。

 

产品精制装置

这里是占位文字

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