设计简介
热电站用安全阀的CAD设计
摘 要
阀门是各种流体装置中不可缺少的控制设备，在国民经济各个部门中有着广
泛的应用。随着市场需求的不断发展，对阀门产品的要求也越来越高。为了适应市场快速变化的要求并使企业在竞争中求得发展，阀门制造厂家都纷纷从产品设计入手，广泛用计算机辅助设计系统进行阀门设计，从而缩短产品设计周期。因此，基于CAD的产品设计具有十分重要的现实意义。
本设计通过调查研究，在收集和分析大量文献资料的基础上，对热电站用安全阀进行设计、计算和结构设计，并基于SOLIDWORKS软件对安全阀进行计算机辅助结构设计。完成了给定条件下的安全阀三维建模和工程图。同时对阀门驱动装置的选择、阀门的检验与试验与阀门的使用与维护提出要求和建议。
本次设计的热电站用安全阀可用于50-300MW机组锅炉汽包或过热器集箱上，控制介质工作压力并对外排汽泄压，以保证锅炉和过热器安全运行。本毕业设计具有重要的应用价值。
【关键词】 热电站； 安全阀；阀门； Solidworks； 三维建模
Abstract
Valve is one of necessary control device of liquid mechanism. It is applied in many kinds of field. With the development of valve market, higher level of valve quality is required. In order to shorten the time of production, Computer-aided design technology is used in manufacturing industry. Therefore, valve design base on CAD software is extremely important.
Through investigation, collecting and analyzing many documents and materials, a safety valve for steam power plant was designed. Calculations and structural design of safety valve were made. Base on Solidworks, three- dimensional models of safety valve as well as its parts were built. The mechanical drawings are produced based on these models. At the same time selection of drivers for the valve and test of the valve as well as usage and maintenance were analyzed in this B.S thesis.
The safety valve designed in the thesis may used in the 50-300MW unit boiler steam and super heater collection box. It can be used to control medium working pressure and the output gas and decompression. Consequently safety valve guarantees the boiler and the super heater under the safe operation. The work in the thesis has great values in application.
【Keywords】 Steam Power plant, Safety valve, valve, Solidworks, Three-dimensional modeling
目 录摘 要
阀门是各种流体装置中不可缺少的控制设备，在国民经济各个部门中有着广
泛的应用。随着市场需求的不断发展，对阀门产品的要求也越来越高。为了适应市场快速变化的要求并使企业在竞争中求得发展，阀门制造厂家都纷纷从产品设计入手，广泛用计算机辅助设计系统进行阀门设计，从而缩短产品设计周期。因此，基于CAD的产品设计具有十分重要的现实意义。
本设计通过调查研究，在收集和分析大量文献资料的基础上，对热电站用安全阀进行设计、计算和结构设计，并基于SOLIDWORKS软件对安全阀进行计算机辅助结构设计。完成了给定条件下的安全阀三维建模和工程图。同时对阀门驱动装置的选择、阀门的检验与试验与阀门的使用与维护提出要求和建议。
本次设计的热电站用安全阀可用于50-300MW机组锅炉汽包或过热器集箱上，控制介质工作压力并对外排汽泄压，以保证锅炉和过热器安全运行。本毕业设计具有重要的应用价值。
【关键词】 热电站； 安全阀；阀门； Solidworks； 三维建模
Abstract
Valve is one of necessary control device of liquid mechanism. It is applied in many kinds of field. With the development of valve market, higher level of valve quality is required. In order to shorten the time of production, Computer-aided design technology is used in manufacturing industry. Therefore, valve design base on CAD software is extremely important.
Through investigation, collecting and analyzing many documents and materials, a safety valve for steam power plant was designed. Calculations and structural design of safety valve were made. Base on Solidworks, three- dimensional models of safety valve as well as its parts were built. The mechanical drawings are produced based on these models. At the same time selection of drivers for the valve and test of the valve as well as usage and maintenance were analyzed in this B.S thesis.
The safety valve designed in the thesis may used in the 50-300MW unit boiler steam and super heater collection box. It can be used to control medium working pressure and the output gas and decompression. Consequently safety valve guarantees the boiler and the super heater under the safe operation. The work in the thesis has great values in application.
【Keywords】 Steam Power plant, Safety valve, valve, Solidworks, Three-dimensional modeling
摘 要 I
Abstract II
1 前言 1
1.1 本毕业设计的目的及意义 1
1.2 本次毕业设计的任务与要求 1
2 阀门概述 3
2.1 阀门的功用 3
2.2 阀门的分类 3
2.3 国内阀门行业现状 5
3 安全阀的设计与计算 7
3.1 安全阀主要零件选材 7
3.2 阀门主要参数设计计算 14
3.3 安全阀的结构设计 19
3.4 安全阀阀体与阀盖连接形式的设计 21
3.5 安全阀关闭件的密封结构的设计 23
4 阀门驱动装置的选择 24
4.1 阀门手动装置 24
4.2 阀门电动装置 25
4.3 阀门的气动装置 27
4.4 阀门液动装置 28
5 安全阀三维建模及其工程图 30
5.1 Solidworks软件简介 30
5.2 安全阀阀体三维建模及其工程图 30
5.3 安全阀主要零件的三维建模及其工程图 33
5.4 安全阀总装配的三维建模与工程图 40
5.5 三维建模的心得体会 41
6 阀门的质量检验.性能测试及安装维护 43
6.1 阀门的质量检验 43
6.2 阀门的质量检验要求 45
6.3 阀门的试压项目及标准 46
6.4 阀门的安装 48
6.5 阀门的维护 50
6.6 安全阀常见故障处理 51
总结与体会 53
致谢词 54
参考文献 55
