反应性液体紧急泄放面积设计进展

为防止反应失控造成爆炸事故,减少事故损失,在介绍模拟反应失控的实验装置ARC、VSP以及RSST等的基础上,针对不同的紧急泄放类型,如气相系统、蒸气系统和混合系统的紧急泄放研究进展,进行了分析论述,旨在发现解决反应失控紧急泄放问题的更好方法,从而为进一步研究反应失控的紧急泄放问题打下基础.

Review of emergency relief System for runaway reaction

The present paper has introduced three equipments, i.e. Accelerating Rate Calorimeter (ARC), Vent Sizing Package (VSP) and Reactive System Screening Tool (RSST), useful for the study and simulation of runaway reaction. The above equipments can be made use of calculating the relief diameter and the discharged mass flow so as to obtain the expected pressure and temperature data of runaway reaction. In accordance with the DIERS classification, three reacting systems are classified for the venting size purpose, i.e. the vapor system, the gaseous system and hybrid system. With each respective system the methods of emergency relief design are different. The present paper has illustrated and compared most commonly adopted design methods, such as DIIERS method, API520 method, DIERS engineering method and Omega method. What seems important is that it is necessary to select models and scenarios in designing the above said pressure relief system. For example, the DIERS engineering method can be used for simple calculation for simple results of venting size. While the DIERS method can be used to calculate W and Omega to calculate G, venting size A can be deduced by the formula of A=W/G, though further research of the emergency relief venting size is still needed.