减阻剂减阻效果的评价与分析

针对临邑-濮阳管道添加HG减阻剂的输油工况,建立并运用旋转圆盘装置进行了管输原油加剂模拟实验。对临濮线加HG减阻剂的减阻效果和影响因素进行了分析,确定了减阻率与雷诺数;减阻率与剪切强度;减阻率与加剂浓度;减阻率与输油温度等关系,为减阻剂减阻效果的评价和研究提供了一种新的方法。

煤焦轻油燃料在热输原油管道的应用

宁阳输油站开展了煤焦轻油替代原油作燃料的现场试验,对原油和煤焦轻油的燃烧特性进行了研究,发现煤焦轻油的燃烧热值与原油相近。研究了煤焦轻油替代原油作燃料的可行性,分析了煤焦轻油作为燃料使用的烟气排放、热效率及吹灰等工况。认为煤焦轻油可替代原油或重油等燃料油,对环境污染小,社会效益和经济效益显著。

临濮输油管道添加减阻剂运行现场试验

介绍了在临濮管道添加减阻剂运行现场试验的情况,考察了增输后添加减阻剂运行的可行性,找出减阻剂的注入量与输量(雷诺数)、减阻率与增输率的关系。试验结果表明,管道添加不同浓度的减阻剂后,管道运行压力大幅降低,管道运营的安全性得到了提高,为临濮输油管道添加减阻剂的应用提供了技术依据。

Agitator tank device and drag reduction agent evaluation

The device that consists of tank and disk agitator for evaluation drag reduction agents(DRA) was established.The effect of DRA was defined by testing the changes of agitator torque that drives the disk rotation.The HG-DRA for oil pipeline from Linyi to Puyang was studied by agitator tank device.The relationships between the drag reduction rate and Reynolds number,concentration,balance time were studied.The best concentration and the highest Renords number for the best drag reduction rate were confirmed.The results show that the drag reduction rate tested in agitator tank is close to that in pipeline.The maximum error of drag reduction rate between pipeline and agitator tank is 18.3%,which indicates that the agitator tank device is available to evaluate the effect of DRA for pipeline and it also has the advantages of simple,easy to be operated and using small volume of oil.Those are very helpful for operaters to know the properties of DRA and operate pipeline well.