装配图
甲苯再沸器设计
摘要：本次设计针对甲苯再沸器进行设计，管程工作介质为导热油，进口温度220℃，出口温度180℃，工作压力0.5MPa，壳程工作介质为甲苯，工作温度80℃~160℃，流量30000kg/h。工作时，通过导热油使甲苯加热至甲苯蒸汽，从而达到沸腾传热的目的，完成热量的传递。该设计计算说明书介绍了甲苯再沸器的设计过程，主要包括工艺设计计算与结构的设计选型。工艺设计计算部分是为了保证工艺设计要求，包括传热计算、，热量核算、压力降计算等；结构部分主要包括结构设计选型和强度计算校核。根据任务书中所给数据确定工艺参数和结构计算，在计算过程中，使用合理的方法进行尺寸调节，从而达到最优的设计尺寸，通过查阅相关国家标准，，使所设计的换热设备达到操作稳定、结构简单、便于制造维修、加工方便，运转安全可靠的功效，然后进行一定的尺寸调节和安全成本的考虑。换热设备设计的基本要求，主要体现在安全性和经济性上，除此之外，还应满足工艺过程要求，能在实际环境中正常运转，结构设计不被场地所限制，结合具体情况，从而设计出一台安全可靠的设备。
关键词：管壳式换热器；再沸器；相变；机械设计
Toluene reboiler design
Abstract：This graduated design is designed for the toluene reboiler. Theworking medium for the tube process is heat transfer oilwhich inlet temperature is 220°C, outlet temperature is 180°C andworking pressure is 0.5MPa.The shell-sideworking medium is toluenewhichworking temperature is 80°C to 160°C and the flow is 30000kg/h.When the equipment isworking, the toluenewill heated to toluenevapor by a thermal oil to achieve boiling heat and heat transfer. The design calculation manual describes the design process of the toluene reboiler, mainly including the process design calculation and the structural design selection. The process design calculation part is to guarantee the process design requirements, including heat transfer calculation, heat calculation, pressure drop calculation, etc. The part of structure mainly includes the structural design selection and strength calculation check.We can determine the process parameters and structural calculations according to the data given in the task book.In the calculation process,we use the reasonable methods for size adjustment to achieve the optimal design size.We also consult the relevant national standards, so that the design of the heat transfer equipment can make operation stableil, structur simply, manufactue easily and process conveniently,make operation become safe and reliable, and then make a certain size adjustment and security costs considerations. The basic requirements for the design of heat exchange equipment are mainly include safety and economy. In addition, the requirements of the technological process shall also be met. The normal operation in the actual environment, the structural design is not limited by the site, and the specific conditions In order to design a safe and reliable equipment.
Keywords：Shell-and-tube heat exchanger; reboiler; phase change; mechanical design.
目录
摘要I
Abstract II
1前言1
1.1发展趋势1
1.2结构设计1
1.3材料选择1
2工艺计算1
2.1传热计算1
2.1.1确定设计方案1
2.1.2确定物性参数1
2.1.3估算传热面积2
2.2工艺结构尺寸的计算2
2.2.1管径和管内流速2
2.2.2管程数和换热管数3
2.2.3传热管排列和分程方法3
2.2.4壳体内径4
2.2.5折流板4
2.2.6拉杆4
2.3热量核算5
2.3.1管程对流传热系数5
2.3.2壳程对流传热系数5
2.3.3传热系数K 6
2.3.4传热面积6
2.4压力降计算6
2.4.1管程流动阻力6
2.4.2壳程流动阻力6
3结构与强度计算7
3.1设计计算7
3.1.1管箱计算7
3.1.2壳程筒体计算8
3.1.3分程隔板8
3.1.4封头计算9
3.1.5换热管和布管限定圆10
3.1.6垫片10
3.1.7管板11
3.1.8法兰29
3.1.9拉杆和拉杆孔32
3.1.10支座32
3.2开孔补强计算33
4制造、检验、安装、适用、维修36
4.1制造36
4.2检验37
4.2.1无损检测37
4.2.2耐压试验和泄露试验38
4.3安装维修38
5结束语38
参考文献40
致谢41
折流板、管板1、管板2、垫片、接地板-5张图纸
左管箱及右管箱
设计参数任务要求
设计目录
设计字数统计
中英文摘要
