液位控制系统干预下小孔全过程泄漏速率模型

发布时间：2018-05-20 18:03

本文选题：液位控制 + 泄漏速率　；参考：《化工学报》2017年01期

【摘要】：泄漏速率是计算泄漏量、确定泄漏持续时间及评估泄漏风险的前提和基础,通过搭建液相储罐小孔泄漏实验系统,构建不同泄漏场景,对比液位控制系统干预下的泄漏速率变化情况,并结合泄漏速率模型计算值进行分析。结果表明:液位控制系统响应后,泄漏速率下降速度变缓,并随时间推移逐渐开始回升,最后稳定在某值处达到稳态泄漏,进出流量对储罐小孔泄漏速率的影响基本可忽略。通过改进储罐泄漏经典公式,建立基于实际液位控制系统干预条件下的储罐小孔泄漏速率模型,提出泄漏孔口高压修正系数计算方法和模型,通过验证分析证明该模型可有效提高液位控制系统干预下泄漏速率计算精度。
[Abstract]:The leakage rate is the premise and foundation to calculate the leakage amount, determine the leakage duration and evaluate the leakage risk. The variation of leakage rate under the intervention of liquid level control system is compared, and the calculated value of leakage rate model is analyzed. The results show that after the response of the liquid level control system, the rate of leakage decreases slowly, and begins to rise gradually with time, and finally reaches steady leakage at a certain value, and the effect of the flow rate on the leakage rate of the small hole in the tank is basically negligible. By improving the classical formula of tank leakage, the leakage rate model of small hole in storage tank under the condition of actual liquid level control system intervention is established, and the calculation method and model of high pressure correction coefficient of leak hole are put forward. It is proved by verification and analysis that the model can effectively improve the accuracy of leakage rate calculation under the intervention of liquid level control system.
【作者单位】：中国石油大学(华东)海洋油气装备与安全技术研究中心;大连港股份有限公司;
【基金】：青岛市民生科技计划重点支持项目(14-2-3-64-nsh) 中央高校基本科研业务费专项资金项目(1515CX05018A)~~
【分类号】：TQ053.2

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