压力容器火灾工况安全泄放质量流量的动态研究

Dynamic simulation of fire relief rate of PSV on pressure vessel

关键词:  压力容器  火灾工况  安全阀泄放质量流量  动态模拟 

Key words:  pressure vessel  fire case  PSV relief rate  dynamic simulation

摘要:

以某气田段塞流捕集器为例,使用HYSYS 动态模拟建立了压力容器包含关断逻辑的全动态生产模型,使用该模型对不同初始压力和液位下段塞流捕集器火灾工况的泄放过程进行了分析和研究。结果 表明,初始条件对段塞流捕集器的最大安全泄放质量流量有明显影响,在计算最大安全泄放质量流量时,应充分考虑初始条件的影响,为安全阀的计算和选型提供正确的基础参数。

Abstract:

A full dynamic production model of pressure vessel was developed using HYSYS DynamicsTM by taking a gas field slug catcher as an example. The PSV relieving of slug catcher with different initial pressure and liquid level on external pool fire scenario was studied by the dynamic model. The results showed that initial conditions affected the PSV relief rate significantly. The affection of initial conditions should be considered sufficiently when calculating the maximum PSV relief rate, so as to provide correct basic parameter in PSV sizing and selecting.