新型槽式液体分布器的开发与应用  

DEVELOPMENT AND APPLICATION OF TROUGH-TYPE LIQUID DISTRIBUTOR

作　　者：畅广西[1] 王辰涯[1] 

机构地区：[1]洛阳石油化工工程公司,河南省洛阳市471003

出　　处：《炼油设计》1999年第7期43-45,51,共4页Petroleum Refinery Engineering

摘　　要：介绍了一种新型槽式液体分布器．该液体分布器的分布槽呈一倒凸字形结构，主体下部的小槽为缓冲沉降槽，它具有缓和液体冲力、增加液流截面积、降低液流梯度、沉降固体杂物，以及防止固体堵塞液流小孔等作用。主体槽内的水平降液面上开有液流小孔，用此简单结构即可定点分布液体。主槽下部外侧有挡液板，可完成液体的线分布。整个槽下窄上宽，可减少气流阻力。新型液体分布器已应用到温度高、液量小、物系脏、易结焦的原油减压蒸馏塔洗涤段的改造中。改造后的减四线油的馏程宽度为７４°Ｃ，色度小于４．５号，为下游装置提供了较好的润滑油料。实践表明，新型液体分布器具有结构合理、分布均匀、抗堵塞、易加工、易调平等优点，可供工程设计中选用。A new trough-type liquid distributor with distributing slot of upside-down convex structure was introduced. The small slot at the lower part of the main body is a buffer soft, having effects of buffering liquid impact, increasing sectional area of liquid flow, decreasing liquid flow gradient, precipitating solid fouling as well as preventing solid from blocking up the orifice. An orifice was opened at the horizontal downflow surface in the main slot. With this simple configuration the liquid can be distributed at the fixed location. A baffle was installed outside the vottom of the main slot, making linear distribution of the liquid. The whole slot was shaped up narrow down and wide upward, capabling of reducing gas flow resistance. The new liquid distributor has been already applied in revamping of the washing zone in crude vacuum distillation tower with high temperature, small flowrate, dirt and easy-coking material. After revamping, the distillation range of the forth-side vacuum stream was 74°Ｃ。 the colority was less than 4. 5, supplying superior lube-stock for the downstream units. Practice showed that the new liquid distributor has advantages of rational configiration, even distribution, resistant to blocking, easy manufacturing and levelling. It can be selected in engineering design.

关 键 词：分配槽 填料塔 蒸馏塔 液体分布器 炼油厂 

分 类 号：TE962.03[石油与天然气工程—石油机械设备]