基于VSP2的放热反应失控紧急泄放特性  

Characteristics of emergency venting on exothermic reaction runaway based on VSP2

作　　者：喻健良[1] 闫兴清[1] 孟庭宇[2] 谢传欣[2] 

机构地区：[1]大连理工大学化工机械学院,辽宁大连116024 [2]中国石化青岛安全工程研究院化学品安全控制国家重点实验室,山东青岛266071

出　　处：《化学工程》2013年第7期74-78,共5页Chemical Engineering(China)

摘　　要：基于VSP2绝热量热仪,通过增加泄放物收集罐、快速响应气动阀及泄放孔板,开展了放热反应失控泄放实验,详细探讨了输入热功率、初始填充率、泄放压力、泄放直径以及反应物发泡性对泄放能力及泄放物质量的影响。结果表明:二相流泄放能力随输入热功率增大而降低,随初始填充率增大先增大后减小,随泄放压力增大先快速降低后缓慢增加,随泄放直径增大而增大。泄放物质量随输入热功率、初始填充率、泄放压力和泄放直径的增大而增大。发泡性材料能显著降低泄放装置的泄放能力,但能增大泄放物质量。Through the addition of effluent container, rapid response pneumatic valve and orifice based on VSP2 （Vent Sizing Package 2） , the blowdown tests of exothermic reaction runaway were conducted. The impact of heating power, initial fill rate, venting pressure, venting diameter and the reactant foaming property on the venting capacity and the effluent mass were investigated. The results indicate that the venting capacity decreases with the increase of heating power, and increases then falls with the rise of fill rate. In addition, the vent capacity decreases rapidly then increases slowly with the increase of venting pressure. Larger venting diameter leads to larger venting capacity. The effluent mass increases with the rise of heating power, fill rate, venting pressure and venting diameter. Foamy reactants can greatly decrease the venting capacity whereas increase the effluent mass.

关 键 词：放热反应失控 紧急泄放 泄放能力 泄放物质量 

分 类 号：TH49[机械工程—机械制造及自动化]