尿素合成塔液相泄漏蒸气爆炸压力计算  

Calculation of Explosion Pressure of Vapor Leaked out from Liquid Phase Sector in Urea Synthesis Converter

作　　者：徐书根[1,2] 王威强 刘燕[3,2] 

机构地区：[1]中国石油大学<华东>机电工程学院,山东青岛266555 [2]山东省特种设备安全工程技术研究中心,山东济南250061 [3]山东大学机械工程学院,山东济南250061

出　　处：《化肥工业》2012年第2期22-26,38,共6页Chemical Fertilizer Industry

基　　金：国家高技术研究发展计划(863计划)项目(2006AA04Z417)

摘　　要：基于热力学理论,对尿素合成塔液相区泄漏的蒸气爆炸进行了理论计算。将裂纹型缺陷作为泄漏口,并且认为裂纹张开面积随内部压力载荷的变化而变化,从而对泄漏速率产生影响,进而影响内部爆炸压力载荷的反弹。计算结果表明:盛装高温、高压物料的尿素合成塔的液相区泄漏能够引发蒸气爆炸。Based on the theory of thermodynamics, a theoretic calculation is done of the explosion of vapor leaked out from the liquid phase sector in the urea synthesis converter. The cracking defect is taken as the leak-out hole, and the crack opening area is considered to change with the change in internal pressure load, thereby exerting influence on the leakage rate and further affecting the rebound of the internal explosion pressure load. The calculation results show that the leakage from the liquid phase sector in the urea synthesis converter filled with high-temperature and high-pressure materials will lead to vapor explosion.

关 键 词：尿素合成塔 蒸气爆炸压力 液相区泄漏 

分 类 号：TQ440.51[化学工程—化学肥料工业]