论文总字数：19412字

摘 要

化工是当下非常重要的行业之一，化工行业对于社会进步起着非同寻常的作用，但在其的发展进程中，由于管理监察不善等因素可能会使化学物质出现泄漏的情况，危害人们的生活安全和周边环境，因此要科学地设计生产的整个情况，确保运输至生产再到储存、使用等一系列过程皆进行全面的保护，使得整个化工行业得到安全保护，安全泄放装置的泄放尺寸设计有着重要的意义，所以科学设计安全泄放装置的泄放尺寸能够有效确保事业得到综合的发展与大幅的提升，但在具体设计和实践时既要考虑单相流泄放还要考虑两相流泄放，需投入的精力和成本大大地增加，因此本文采用程序模拟设计安全泄放尺寸。苯乙烯是用苯取代乙烯的一个氢原子形成的有机化合物,苯乙烯聚合反应本质是单体聚合成化合物的反应。为了便于实验室的研究实验和放大指导更进一步的工业生产。本文通过利用VSP2来为泄放设计提供原始数据，然后通过ISO-4126和Leung-Omega法加以Microsoft Visual C 2010 Express来分别设计两种方法下单相流和两相流泄放的程序，来研究不同压力状态下泄放所需泄放尺寸。

关键词：苯乙烯；安全泄放；Leung-Omega；ISO-4126；泄放尺寸；

Pressure release size design for styrene polymerization

Abstract: Chemical is one of the very important industry, chemical industry for social progress plays a remarkable role, but in the process of its development, because of poor management and supervision and other factors may make the chemical leak, harm people's life safety and the surrounding environment, therefore should scientifically design the situation of production, to ensure that the transport to production to the storage, use and a series of process of a comprehensive protection, makes the whole chemical industry safety protection, the discharge of the safe relief device size design has important significance,So the scientific design of the discharge of the safe relief device size can effectively ensure the enterprise obtain the comprehensive development and significantly improve, but in the concrete design and practice should not only consider the single-phase flow discharge also consider two phase flow discharge, need for energy and cost is greatly increased, so in this paper, the process simulation design safety discharge size.Styrene is an organic compound formed by replacing a hydrogen atom of ethylene with benzene. The polymerization of styrene is essentially a reaction of monomer polymerization into a compound.In order to facilitate the laboratory research experiment and amplification to guide further industrial production.This paper USES VSP2 to provide the original data for the discharge design, and then designs the single-phase flow and two-phase flow discharge procedures under the two methods through iso-4126 and leung-omega methods and Microsoft Visual C 2010 Express, respectively, so as to study the discharge size required under different pressure states

Key words: styrene;pressure release;Leung - Omega;ISO - 4126;Drain size;

目 录

摘要............................................................. I

ABSTRACT.............................................................................................................II

1. 前 言 5

1.1课题的研究背景及研究意义 5

1.2 目前国内外研究状况 6

1.3苯乙烯的特性 8

1.4本论文的主要研究内容 8

1.5本论文的工作 8

2. 压力实验设计与计算方法 10

2.1实验装置的基本要求 10

2.2 泄放尺寸包绝热绝热量热仪（VSP2） 12

2.2.1 VSP2的发展背景 12

2.2.2 VSP2量热仪的组成 13

2.3蒸汽体系泄放面积计算方法及程序设计 13

2.3.1 单相流泄放及程序设计 14

2.3.1.1 ISO-4126法及程序设计 14

2.3.1.2 Leung法及程序设计 18

2.3.2 两相流泄放及程序设计 21

2.3.2.1 ISO-4126法及程序设计 22

2.3.2.2 Leung-Omega法及程序设计 25

2.3.2.3 Fauske法及程序设计 27

3. 数据处理讨论与研究 29

3.1单相流泄放和两相流泄放数据结论对比研究 29

3.2 泄放面积计算方法的比较 29

4. 分析研究与结论讨论 31

参考文献........................................................................... 34

致谢................................................................................ 35

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