摘要：搅拌釜是化学工程和生物工程中最常见也是最重要的单元之一，在工业生产过程中大约有85%的液-液混合过程都是在搅拌釜中完成的。本文主要介绍涂料搅拌釜的设计步骤。其中主要涉及罐体与夹套的设计、搅拌装置的设计、传动装置的设计以及搅拌釜附件的设计。通过以上几个部分的设计确定了筒体、封头、搅拌轴等的基本尺寸，然后，进行相应的强度刚度校核，以保证设备的使用安全。按照规范，查阅了大量国家标准，选取了相对应工况下的标准零件，例如，搅拌器、轴封、电机、减速器、支座等部件。本文也研究了搅拌器安放深度对搅拌效果的影响，通过ANSYS分析软件，进行了流场分析。选择出了相对较好的搅拌器安放位置。对搅拌器安放的相对位置的研究可以为后人提供更好的设计思路。

关键词：涂料搅拌；常规设计；流场分析

Design and Flow Field Analysis of Stirred Tank for Paint

Abstract: The stirred tank is one of the most common and important units in chemical engineering and bioengineering. About 85% of the liquid-liquid mixing process in the industrial production process is completed in a stirred tank. This article mainly introduces the design steps of the paint agitating tank. Among them, the design of the tank body and the jacket, the design of the stirring device, the design of the transmission device, and the design of the accessories for the stirring vessel were mainly involved. Through the design of the above sections, the basic dimensions of the cylinder body, head and agitator shaft were determined, and then the corresponding strength and stiffness check was performed to ensure the safety of the equipment. According to the specifications, a large number of national standards were consulted, and standard parts under corresponding conditions were selected, for example, agitators, shaft seals, motors, speed reducers, bearings, and other components. In this paper, the influence of the depth of the stirrer on the stirring effect was also studied. The flow field analysis was performed by ANSYS software. A relatively good stirrer placement was selected. The study of the relative position of the stirrer can provide better design ideas for future generations.

Key Words: paint mixing；Conventional design；The flow field analysis

目录

1 绪论 1

1.1 背景与意义 1

1.2 国内外研究状况 1

1.3 本次设计的内容与目的 1

2 罐体与夹套的设计 3

2.1 筒体几何尺寸的计算 3

2.1.1 装料系数与全容积的确定 3

2.1.2 长径比的选取 3

2.1.3 确定筒体内径 4

2.1.4 确定封头尺寸 4

2.1.5 确定筒体高度H 5

2.2 夹套几何尺寸计算 6

2.2.1 夹套的内径尺寸确定 6

2.2.2 夹套封头尺寸的确定 6

2.2.3 夹套的高度尺寸确定 6

2.3 涂料搅拌釜的强度计算 7

2.3.1 选择材料 7

2.3.2 筒体厚度计算 7

2.3.3 筒体内压校核 8

2.3.4 筒体外压校核 8

2.3.5 筒体封头内压校核 10

2.3.6 筒体封头外压校核 10

2.3.7 夹套内压强度校核 11

2.4 水压试验校核 12

2.4.1 筒体水压试验校核 12

2.4.2 夹套水压试验校核 13

3 搅拌装置的设计 14

3.1 搅拌器的设计 14

3.2 搅拌轴的设计 16

3.2.1 轴的最小直径的估算 16

3.2.2 轴的刚度校核 16

3.2.3 搅拌轴临界转速校核计算 17

3.2.4 搅拌轴结构的确定 17

4 传动装置的设计 18

4.1 电机的选型 18

4.2 机架的选型 19

4.3 减速器的选型 20

4.4 联轴器的选型 21

4.5 安装底盖的选型 23

4.6 凸缘法兰的选型 24

5 轴封的选择 26

5.1.1 填料密封的选型 26

6 附件的选型及设计 28

6.1 容器法兰 28

6.1.1 容器法兰的选型 28

6.1.2 容器法兰结构参数 28