乙炔反应器出料冷却器设计.doc

本科毕业设计说明书
乙炔反应器出料冷却器设计
ACETYLENE REACTOR DISCHARGING COOLER DESIGN
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2012年 06 月 05
乙炔反应器出料冷却器设计
摘要

合成乙炔工业中,对出料进行冷却是工艺中的一个重要环节,因而冷却器是该工业中的必备设备。本设计从生产实际出发,根据生产环境及生产能力的需求,选择合适的换热器类型,然后根据具体生产工况,按相关设计规范,进行基于整体结构的工艺设计,再对相关辅助部件进行机械设计,最终设计出一台满足要求的换热器。浮头式换热器是管壳式换热器系列中的一种,它的特点是两端管板只有一端与外壳固定死,另一端可相对壳体滑移,称为浮头。浮头式换热器由于管束的膨胀不受壳体的约束,因此不会因管束之间的差胀而产生温差热应力,另外浮头式换热器的优点还在于拆卸方便,易清洗。设计的前半部分是工艺计算部分,。设计的后半部分则是关于结构和强度的设计,主要是根据已经选定的换热器型式进行设备内各零部件(如壳体. .)的设计
关键词:工艺设计,机械设计,开孔补强
ACETYLENE REACTOR DISCHARGING COOLER DESIGN
ABSTRACT
Synthesis of ethylene industry, the discharge of cooling is an important link in the process which makes cooler be the necessary equipment in this industry. The es from the actual production. we will choose the proper type of heat exchanger according to the production environment and production needs. plete the process design and related auxiliary parts of machinery design, according to the relevant specifications and design according to the design specification. Finally, plete the task of designing the heat exchanger, Floating head type heat exchanger is a shell and tube heat exchanger in the series, it is characterized by both ends of the tube plate and shell is fixed only at one end, the other end can be relative to the casing slip, known as the floating head. Floating head type heat exchanger tube bundle from the shell due to expansion of the constraints, thus not due to differential expansion between tube bundles arising from thermal stress, The first is the process design calculation section, established according to the design of the heat transfer coefficient. Shell-side pressure drop calculation of pressure drop of tube. The latter part of the design is the design of the structure and strength, are mainly based on the heat exchanger type has been selected for equipment parts (such as a casing. Pipe box fixed tube plate. Pass partition. Pull rod. The floating