论文总字数：20414字

摘 要

反应釜是用来完成加速、硝化、聚合等应用于石油、化工、医药、食品等工业中的压力容器。无论是哪种反应釜，其内部结构大多是相同的，主要分类有机械搅拌反应釜、管式反应釜、固定床反应釜等。

设计一个夹套式机械搅拌式反应釜是本次设计的主要内容，这种反应釜适用于不同的物性和各种操作条件的反应过程，还大量用于混合、分散、溶解、结晶、萃取等操作。本次设计的夹套式机械搅拌反应釜由以下几部分组成：釜体与夹套、搅拌装置、支架各零件。反应釜的主要作用是为反应物提供足够的容积，以及承受反应的物理条件。搅拌装置是为了加速反应介质的反应速率。支架各零件的主要作用是固定反应釜便于操作。

本机械搅拌反应釜的设计思路为：首先利用所给定的设计工艺参数对釜体和夹套的筒径及高度进行计算，接着计算筒及封头的的壁厚并用SW6进行校核。校核合格后再对搅拌设备进行计算与选择。先是根据搅拌条件选择叶轮的类型和尺寸，然后根据转速计算出搅拌功率，选择合适的电动机、减速器及联轴器。最后选择搅拌釜的底座，完成设计。

关键词：机械搅拌 搅拌装置 反应釜 SW6

Design of Mechanical Stirring Reactor

ABSTRACT

Reactor is used to acceleration, nitrification, polymerization and other applications in petroleum, chemical, pharmaceutical food and other industries .Internal structure is mostly the same, mainly classified as mechanical stirring reactor, tubular reactor, fixed bed reactor, etc.

This design is a jacketed mechanically stirred reactor, which is suitable for the reaction process of various physical properties and various operating conditions. In addition to the chemical reactor and biological reactor, the jacketed mechanically stirred reactor is also widely used for mixing, dispersion, dissolution, crystallization, extraction and other operations. The jacketed mechanical stirring reaction kettle designed this time is composed of the following parts: kettle body and jacket, stirring device, bracket parts.The main function of the reactor is to provide enough volume for the reactant and the physical conditions to bear the reaction. The stirring device is to accelerate the reaction rate of reaction medium. The main function of each part of the support is to fix the reactor for easy operation.

The design idea of this mechanical stirring reactor is as follows: firstly, the barrel diameter and height of the reactor body and jacket are calculated with the given design process parameters, and then the wall thickness of the barrel and head is calculated and checked with SW6. The mixing equipment shall be calculated and selected after passing the check. First, the impeller type and internal components are selected according to the mixing conditions, then the impeller size and speed are determined, the mixing power is calculated, and the driving device of the reactor is selected. It mainly includes the calculation and selection of mixing shaft, the selection of motor, reducer and coupling. Finally, the base of the agitator is selected to complete the design.

Keywords: Mechanical agitation Stirring equipment Reactor SW6

目录

摘要 II

ABSTRACT III

第一章 绪论 1

1.1研究背景及意义 1

1.2反应釜的类型 1

1.3国内外研究 1

第二章 设计思路的拟定及方案确定 4

2.1设计思路的拟定 4

2.1.1反应釜工艺设计 4

2.1.2密封装置的选择 4

2.2设计方案的确定 4

2.2.1反应釜类型的选择 4

2.2.2工艺参数 5

第三章 机械设计 6

3.1计算筒体的直径和高度 6

3.1.1筒体直径的计算 6

3.1.2筒体的高度 7

3.2计算夹套的直径和高度 7

3.2.1计算夹套的直径 7

3.2.2夹套的高度 7

3.3选择夹套材料及计算壁厚 8

3.4确定筒体材料及壁厚 9

3.5筒体法兰的选型 11

3.6开孔补强 11

3.6.1本设备封头允许的开孔范围 11

3.6.2判断是否需要补强 11

3.6.3开孔补强计算校核 11

3.6.4有效补强面积 12

第四章 搅拌设备的计算与选型 14

4.1搅拌器的选择 14

4.1.1搅拌器、搅拌轴和联轴器的计算和选择 14

4.1.2计算搅拌功率 14

4.1.3搅拌轴的计算与校核 15

4.1.4联轴器的选择 17

4.2电动机的选型 17

4.3减速器的选型 17

4.4机架的选择 17

4.5支座的选型 18

4.6密封装置的选择 18

第五章 反应釜重量计算及经济效益核算 20

5.1反应釜重量计算 20

5.1.1釜体及夹套重量 20

5.1.2封头重量 20

5.1.3料液重量 20

5.1.4其他附件重量 20

5.2经济效益核算 20

致谢 21

参考文献 22

附表：SW6校核 24

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