摘要：搅拌设备在生活中的应用非常广泛，尤其是在化学工业中，经常应用到各式各样的化工生产。搅拌设备通常带有夹套来满足反应釜内部温度的要求，为了对罐体进行加热或冷却，在容器外壁附有完整独立的压力室，这种钢结构称为夹套容器。本次设计的预缩聚合釜的设计条件为：介质：低聚体；设备最高工作压力为2。50MPa，工作温度为295℃。夹套最高工作压力为2。00MPa，工作温度为330℃。搅拌器功率为1。5kW，转速为15转/分。设备总容积为2。0m3，传热面积为5m2。根据上述条件进行初步试算，若选用普通夹套容器，由于内筒体承受外压较大，筒体厚度需增加很多来抵抗失稳，不是经济的选择，因此本次搅拌设备型式选用半圆管夹套，经济合理，操作方便，同时可满足生产需要。罐体型式确定之后，对搅拌装置进行了设计，首先根据物料特性计算出搅拌轴的搅拌功率，计算出搅拌桨叶的厚度，根据标准及流体特性选取6片平直叶圆盘涡流式搅拌器，再选取电机、减速器、支架型号，这样就满足搅拌的要求。由于筒体内部压力较大，筒体轴封处选用机械密封型式，满足密封要求。72603

毕业论文关键词：反应釜  夹套  搅拌器  传动装置 

Inject mold Design of Camera Case

Abstract: Mixing equipment in industrial production in a wide range of applications, especially in the chemical industry, many of the chemical production are more or less the application of mixing equipment。 The mixing device usually has a jacket to meet the requirements of the internal temperature of the reactor。 In order to heat or cool the tank, a separate independent pressure chamber is attached to the outer wall of the container。 This steel structure is called a jacketed container。

The design conditions of the pre-telomerization reactor are: medium: oligomer; equipment, the maximum working pressure of 2。50MPa, the device operating temperature of 295 ℃。 The maximum working pressure of jacket is 2。00MPa, the working temperature of the jacket is 330 ℃。 Mixer power of 1。5kW, speed of 15 r / min。 The total volume of the equipment is 2。0m3 and the heat transfer area is 5m2。 According to the above conditions for preliminary trial, if the use of ordinary jacket containers, the inner cylinder to withstand the larger external pressure, the cylinder thickness to be increased to resist a lot of instability, not the economic choice, so this type of mixing equipment selection semi-circular tube Jacket, economical and reasonable, easy to operate, and can meet the production needs。

After the tank type is determined, the mixing device is designed。 First, the stirring power of the stirring shaft is calculated according to the material characteristics, and the thickness of the stirring blade is calculated。 According to the standard and the fluid characteristics, six straight disc vortex turbines , And then the motor, reducer, bracket model selection, to meet the requirements of mixing。

As the cylinder internal pressure is greater, the cylinder shaft seal mechanical seal type, to meet the sealing requirements。

Key words: reactor; jacket; beater; gearing

目  录

1  绪论 1

1。1 搅拌设备简介 1

1。2 本次条件及内容 2

2  釜体结构强度设计计算 5

2。1 反应釜罐体的长径比和装料量 5

2。2。 反应釜罐体封头 7

2。3。 夹套的选取 8

2。3。1 整体夹套的结构类型