摘要：液化气回收装置是将液化气和液化气混合物通过分馏后得到轻石脑油和液化气，液化气经过C3/C4分馏后可获得丙烷和丁烷产品。本装置应用精馏原理，借助主组分的挥发度不同，控制它的温度和压力，在精馏塔中使混合烃分离为C3、C4、轻石脑油及燃料气。本次设计的汽提塔是根据GB150-2011《钢制压力容器》和JB4710-2005《钢制塔式容器》标准设计。塔设备是化工、炼油、医药等各工业生产中重要的设备，用以使气体与液体、气体与固体、液体与液体或液体与固体密切接触，并促进其相互作用，以完成化学工业中热量传递和质量传递过程。塔设备广泛用于蒸馏、吸收、气提、萃取等单元操作中。本设计内容包括说明部分和计算部分。说明部分包括塔设备的作用、分类、构造，汽提塔的选材、结构及附件的选择、工艺说明等。计算部分包括汽提塔的结构计算、强度和稳定性校核等内容。21298
毕业论文关键词：汽提塔；结构；强度和稳定性；校核；设计
Propane Stripper Design Of LPG Recycling Equipment
Abstract: LPG and LPG mixture can be pided into light naphtha and LPG by fractionation in LPG recycling equipment,after c3/c4 fractionation,we can get propane and butane from LPG.This equipment use distillation method,according to the different volatility,temperature and pressure are control to separate c3,c4,light naphtha and fuel gas from mixed hydrocarbon.The stripping tower is based on GB150-2011’steel pressure vessel’and JB4710-2005’steel tower vessel’.Tower is an important equipment in chemical industry,refining oil,pharmaceutical industry and other industrial production.Its role is to realize the gas phase or liquid phase contact fully,so as to achieve the mass transfer and heat transfer purpose between phases.Tower is widely used in distillation,absorption,gas extraction,extraction and unit operation.This design consists of two parts:declarations and calculations.Declarations part mainly includes the function,classification and structure ,materials and structure choosing of stripper,manufacturing process description.The computation part mainly includes the structure calculation,strength and axial stability checking.
Keywords: stripper;structure;strength and axial stability;checking;design
目录
1课题概述 1
1.1塔设备概述 1
1.2汽提塔工作原理 1
1.3汽提塔主要结构 2
2材料选择和结构设计 3
2.1 设计任务 3
2.2 主要设计参数的确定和说明 3
2.2.1设计压力 3
2.2.2设计温度 4
2.2.3焊缝系数 4
2.2.4壁厚附加量 4
2.2.5许用应力 4
2.3材料选择 4
2.3.1筒体材料选择 5
2.3.2主要部件材料选择 5
2.4结构型式的选择 6
2.4.1塔盘结构型式的选择 6
2.4.2封头的设计 7
2.4.3裙座的设计 8
2.4.4地脚螺栓 8
3强度和稳定性设计 9
3.1塔体和封头厚度计算 9
3.2塔设备质量载荷计算 10
3.3风载荷和风弯矩计算 12
3.3.1风载荷计算 13
3.3.2风弯矩计算 13
3.4地震弯矩计算 14
3.5偏心弯矩计算 16
3.6各种载荷引起的轴向应力 16 液化气回收装置丙烷汽提塔设计+CAD图纸:http://www.751com.cn/jixie/lunwen_13441.html