摘要:本次设计的目的是尽可能的满足效率、经济、操作等多方面的要求,设计出更为合理的甲醇水填料式的精馏塔的塔体结构,各个零件的选择和布局,各个附件的选择和布局,以及每一个连接件之间的连接形式和连接方法的选择。当然,也要满足应力校核,满足风载荷要求,满足地震载荷要求。在安置连接件的地方需要在筒体上开孔,这时需要考虑是否需要开孔补强。并且,接管,筒体,封头之间的连接需要怎样的焊缝形式来连接,都是考虑的重点。材料方面则要同时考虑经济,能否正常使用,是否会被长时间的使用而严重损坏,以及腐蚀方面的防护的要求是否满足等等都是材料选择上极为重要的环节。在附件的选择方面因为要同时满足经济性,操作的便捷性,效率的达标程度等等方面需要综合考虑,不能出现多余的附件,多余的零件,多余的接管等等。
关键词: 应力校核;经济实惠;操作便捷;结构合理;可操作性强20492
Design of distillation columns
Abstract:The purpose of this design is to meet the efficiency, economy, operation and other possible requirements, design a more tower distillation methanol water filling type of reasonable, selection and layout of each part, selection and arrangement of various accessories, and each connection between the connection form and the connection method of choice. Of course, but also to meet the stress check, to meet the requirements of wind load, seismic load to meet the requirements.Placement in the connecting piece place to hole in the cylinder, then the need to consider the need of opening reinforcement. And, take over, cylinder head, the connection between the need to weld form of how to connect to, all is the key consideration. Materials should also consider the economy, whether the normal use, whether it will be a long time of use and serious damage, and corrosion protection for the request meets the and so on are the choice of materials is very important. In the selection of accessories for to satisfy the economical, convenient operation, efficiency of compliance degree etc., need to consider, can't appear extra accessories, spare parts, spare nozzle etc..
Keys words: Stress check;affordable; convenient operation; reasonable structure; operability
目录
1 绪论 3
1.1 课题简介 3
1.2 课题分析与方案论证 3
2 圆筒和封头壁厚的计算 6
2.1 材料的选择 6
2.2 圆筒的壁厚计算 7
2.3 封头的壁厚计算 8
2.4 裙座设计 10
2.4.1 裙座材料选择 10
2.4.2 裙座结构设计 10
3 塔器载荷计算 13
3.1 塔器的质量计算 13
3.1.1 质量载荷 14
3.1.2 内件质量 14
3.1.3 保温层质量 14
3.1.4 平台和梯子质量 14
3.1.5偏心质量 15
3.1.6 附件质量 15
3.1.7 水压试验时质量 15
3.1.8 塔器操作质量 15
3.1.9 塔器最大质量 15
3.1.10 塔器最小质量 15
3.2 塔器的地震载荷和风载荷计算 16
3.2.1 塔的自振周期计算 16
3.2.2地震载荷及地震弯矩计算 17
3.2.3 风载荷和风弯矩的计算 19
4 塔壳稳定性和强度验算 22
4.1 圆筒轴向应力校核和圆筒稳定性校核 22
4.2 塔设备水压试验时的应力校核 24
4.3 裙座的计算校核 26
4.4 裙座与塔壳焊缝验算 28 甲醇水填料式的精馏塔设计+CAD图纸:http://www.751com.cn/huaxue/lunwen_12286.html