80立方米冷凝器的设计+CAD图纸
时间:2018-04-14 21:53 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：换热器是在工厂生产中最常见的过程设备之一，是用于物料之间进行热量传递的过程设备，使热量从热流体传递到冷流体的设备。通过这种设备使物料能达到指定的温度以满足工艺的要求。浮头式换热器是针对固定管板式换热器在热补偿方面的缺陷进行了改进的换热设备。 由于浮头式换热器的管束连同浮头可以自由伸缩，与外壳的膨胀无关，因而不产生温差应力；而且管束可以抽出，便于清洗管程和壳程；结构坚固；可靠性高；适应性广；处理能力大；能承受较高的工作压力，因此不会因管束之间的差胀而产生温差应力，另外浮头式换热器的优点还在于拆卸方便，易清洗。在化工工业中应用广泛。其主要设计内容主要有换热器的选择、工艺计算、结构与强度设计，如换热管的分布、折流板的选型、开孔补强计算以及各种零部件的材料选择等几部分组成。21245 毕业论文关键词： 管壳式换热器；浮头式换热器；结构与强度设计 The design of the 80m3 condenser Abstract： Heat exchanger is one of the most common process equipment in industrial production, is used for process equipment heat transfer material, the heat from the hot fluid is transferred to the cold fluid equipment. Through this kind of equipment materials can achieve the specified temperature to meet the process requirements. Floating head heat exchanger is the fixed tube plate heat exchanger in the thermal compensation of the defects of the heat exchanging equipment improvement. The tube bundle heat exchangers with floating freely telescopic, has nothing to do with the shell of the expansion, and thus does not produce thermal stress; and control can be drawn, convenient cleaning tube side and shell side; solid structure; reliability; adaptability; large capacity; can bear high working pressure, it will not because of differential expansion between tube bundle due to temperature stress, the floating head heat exchanger has advantages of convenient disassembly, easy to clean. Widely used in chemical industry. The main design content mainly includes selection of heat exchanger, the process calculation, structure and strength design, such as the heat distribution, baffle type, the opening reinforcement calculation and various parts of the materials selection of several parts. Keywords: shell and tube heat exchanger; heat exchangers; structure and strength design 目录 1 冷凝器概述 1 1.1 课题介绍 1 1.2 课题研究的意义 1 1.3 本课题的研究内容 2 2材料选择及初步计算 3 2.1初始条件 3 2.2筒体材料的选择 3 2.3 换热管的选择及连接方式 3 2.3.1 换热管的选择 3 2.3.2 换热管的排列形式 4 2.3.3 换热管与管板连接方式 5 2.4 壳体直径计算 6 3换热器结构设计 7 3.1 壳体圆筒壁厚计算 7 3.1.1 厚度计算 7 3.1.2 压力试验时应力校核 8 3.1.3 压力及应力计算 8 3.2 前端管箱筒体的厚度计算（管箱短节的计算） 8 3.2.1 厚度计算 9 3.2.2 压力试验时应力校核 9 3.2.3 压力及应力计算 10 3.3 前端管箱封头计算 10 3.3.1 厚度计算 11 3.3.2 应力试验时应力校核 11 3.3.3 压力计算 12 3.4 后端管箱筒体计算 12 3.4.1 厚度计算 12 3.4.2 压力试验时应力校核 13 (责任编辑：qin) |