摘要:硝化过程通常需要使用釜式反应器在液相中进行。根据硝化剂和介质的不同,釜体材料可采用各种不同材料,如搪瓷、钢、铸铁或不锈钢等。在混酸硝化反应过程中,为了将反应温度控制在合适范围内,需要利用夹套以快速带走反应过程中产生的大量热量,必要时还应在釜内布置冷却蛇管来增加传热面积。40986
搅拌釜式反应器由搅拌器和釜体组成。搅拌器包括传动装置,搅拌轴(含轴封),叶轮(搅拌桨);釜体包括筒体,夹套和内件,盘管,导流筒等。工业上应用的搅拌釜式反应器有成百上千种,按反应物料的相态可分成均相反应器和非均相反应器两大类。非均相反应器包括固-液反应器,液-液反应器,气-液反应器和气-液-固三相反应器。 毕业论文关键词:反应器;夹套;蛇管;硝化过程;搅拌器
Design of Nitrifying Reactor
Abstract: Generally,the nitrifying process should happen in fluid phase in tank reactor. According to the differences of nitration agents and media,enamel still,FYG and stainless steel vessel are all available. In the process of mixed acid nitration,in order to keep the appropriate reaction temperature,jackets are used to remove a lot of heat,coiler is also used to increase heat transfer surface when it is necessary.
Stirred tank reactor by the stirrer and the reactor body. The agitator gear stirring shaft ( with shaft seal),impeller,kettle body including a cylinder,jacket and coil,draft tube etc. Industrial application of stirred tank reactor,there are hundreds of homogeneous reaction and heterogeneous reactor can be pided into two major categories according to the phase of the reaction materials. The non - homogeneous reactor,including the solid - liquid reactor,liquid - liquid reactor,the gas - liquid reactor and gas - liquid - solid three-phase reaction device.
KeyWords: Reactor; Jacket; Coiler; Nitrifying Process; Agitator
目 录
1 前言 1
1.1 硝化反应设备的现状与发展前景 1
1.2 设计条件及主要设计内容 2
2 罐体和夹套的设计 3
2.1 罐体和夹套的结构设计 3
2.2 罐体几何尺寸计算 3
2.2.1 确定筒体内径 3
2.2.2 确定封头尺寸 4
2.2.3 确定筒体高度H1 4
2.3 夹套几何尺寸计算 5
2.3.1 确定夹套内径D2 5
2.3.2 确定夹套高H2 5
2.4 传热面积计算 5
2.4.1 传热面积校核 5
2.4.2 蛇管的设计 6
2.5 夹套反应釜的强度计算 6
2.5.1 确定设备材料 6
2.5.2 按内压对筒体和封头进行强度计算 6
2.5.3 按外压校核罐体厚度进行稳定性校核 10
2.5.4 水压试验校核 12
3 反应釜的搅拌器 13
3.1 搅拌桨 13
3.1.1 搅拌桨的结构 13
3.1.2 搅拌桨的尺寸 13
3.2 挡板 14
4 反应釜的传动装置 15
4.1 电动机的选型 15
4.2 釜用减速机的选择 15
4.3 V带传动设计计算 16
4.3.1 确定V带截型 16
4.3.2 确定带轮基准直径和验算带速 16
4.3.3 确定中心距、带的基准长度和验算小带轮包角 17