摘要
原油管道因故停输时,在非事故站间采用YOYO系统可以使原油在站间往返流动,避免凝管事故发生。YOYO系统由分别设置在两个相邻泵站的储罐和螺杆泵组成,其运行过程与正反输工艺相似,但两者使用目的不同。详细说明了YOYO系统的工作流程,建立了其运行过程的传热数学模型,讨论了正反向输送时的初始条件和高程差。基于算例管段,计算讨论了YOYO系统运行过程中的温降规律,分析了采用YOYO系统后管输原油的流动安全性,结果表明:该方法对于事故停输管道是一种潜在可行的安全措施。
When crude oil pipelines shut down for some reason,a YOYO system can be used between non-accident stations to make crude oil flow in round trips between stations to avoid coagulation accidents.The YOYO system consists of storage tanks and screw pumps respectively set up in two adjacent pumping stations.Its operation process is similar to forward and backward transmission technology,but the purposes are different.Workflow of the YOYO system is detailed,heat transfer mathematical models of its operation process are built and the initial conditions and height differences of forward and backward transmission are discussed.Based on a calculation case of pipe section,the temperature drop law of YOYO system during its running is discussed.The flow safety of oil pipeline with YOYO system is analyzed,and results indicate that the method is a potential safety measures for accidental pipeline.
出处
《油气储运》
CAS
2012年第5期345-348,407,共4页
Oil & Gas Storage and Transportation
