【精品完整版】2.6万吨年乙烯精馏塔设计

XXXX大学设计说明书题目：2.6万吨/年乙烯精馏塔设计院系：机械工程学院_______________专业：过程装备与控制工程专业_____班级：2001—02班学生姓名：-----指导教师：_论文提交日期：2005年6月25日论文答辩日期：2005年6月27日内容摘要塔设备是化工、石油等工业中广泛使用的重要生产设备。塔设备的基本功能在于提供气、液两相以充分接触的机会，使质、热两种传递过程能够迅速有效地进行；还要能使接触之后的气、液两相及时分开，互不夹带。塔设备主要应用在石油化工行业，其种类很多，比如有常压塔，加压塔及减压塔，还有按单元操作分有精馏塔，吸收塔，萃取塔，反应塔，填料塔，干燥塔等。本次设计的是2.6万吨乙烯精馏塔，在本次设计中主要包括三大方面的内容：一是工艺计算，二是强度及稳定性的计算，三是专题部分。第一部分主要进行了物料衡算，塔内物件尺寸的确定，各种管径的确定，附属设备的选择等等。第二部分在强度及稳定性计算中，计算出塔器的各部分质量，对塔的三个危险截面进行校核，主要是质量载荷，风载荷和地震载荷的计算。还要进行补强的计算。最后是专题部分，即吊柱的选用与校核。关键词：板式塔精馏设备填料塔AbstractTowerequipmentistheimportantproductionequipmentthatchemicalindustry,petroleum,etc.usedextensivelyinindustry.Thebasicfunctionofthetowerequipmentliesinofferingtheangry,chanceinordertobefullycontactedoftwophaseofliquid,makethequality,twokindsofhottransmittanceprocesscangoonpromptlyandefficiently;Canisitexposedtogas,liquidtwophaseafterseparateintime,carryeachothersecretlytomakealso.Thetowerequipmentisappliedtothetradeofpetrochemicalindustrymainly,thereisalotofitskind,forexamplethereareatmosphericpressuretowers,pressurizeinthetowerandreducepressureinthetower,operateanddividerectifyingtoweraccordingtotheunit,absorbthetower,liebetweenandsuckthetower,extractthetower,thereactiontower,drytower,etc..Theonethatdesignedis2thistime.Therectifyingtowerof60,000tonsofethylene,designmaincontentincludingthreemajorrespectsinChinathistime:First,thecraftiscalculated,second,thecalculationoftheintensityandstability,third,thematicpart.FirstpartBeregardedastheweighingapparatusofthesuppliesmainly,thesurenessofthesizeofthethingsinthetower,thesurenessofdifferentpipediameters,choiceoftheaccessoryequipment,etc..SecondpartIntheintensityandstabilityarecalculated,calculateouteverypartofqualityofthetowerdevice,checkthreedangeroussectionsofthetower,mainlyqualityload,thecalculationwithloadedwindloadandearthquake.Mendstrongcalculation.Itisathematicpartfinally,namelyhangtheexertionandcheckofthepost.Keywords:TrayTowerDistillingEquipmentPackedtower目录塔设备概述.................................................1第一部分：工艺计算.........................................3第一节物料衡算......................................................31)塔顶产品量......................................................32)塔釜,塔顶流量及组成..............................................3第二节确定塔温......................................................41）塔釜温度的确定..................................................42）塔顶温度的确定..................................................53）进料温度........................................................5第三节塔板数的计算..................................................61）确定最小回流比.................................................62）确定最小理论板数................................................74）实际塔板数......................................................75）确定进料板位置..................................................8第四节塔径计算.....................................................81）精馏段塔径......................................................82）提馏段塔径.....................................................12第五节塔内物件的工艺尺寸...........................................12第六节流体力学验算...............................................141）气体流过塔板的压降.............................................142)液泛校核........................................................153）沫夹夹带情况...................................................15第七节安全操作范围和操作线.......................................161）精馏段.........................................................162）提馏段.........................................................17第八节附属设备的选择...............................................181）全凝器的选择...................................................182)再沸器的选择...................................................193)回流泵的选择...................................................19第九节管径设计.....................................................20第二部分强度及稳定性计算................................21第一节圆筒和封头的厚度和强度计算...................................21第二节载荷的计算...................................................221)质量载荷的计算:................................................222)塔的自振周期...................................................243）地震载荷及地震弯矩的计算.......................................244）风载荷和风弯矩计算：...........................................255)最大弯矩.......................................................27第三节应力校核.....................................................281)圆筒应力校核：.................................................282)裙座壳轴向应力校核：...........................................29第四节基础环结构设计及校核.........................................301）基础环........................................................302）地脚螺栓计算：.................................................313）肋板计算：.....................................................314）盖板计算：.....................................................32第五节补强计算.....................................................331）塔顶蒸汽出孔...................................................332)人孔的补强计算..................................................343)进料管接管补强..................................................35第三部分吊柱的强度计算..................................361）设计载荷..............