机动管线水顶油排空油水混合物切割工艺研究

摘要

Evacuation of mobile pipeline is a common practice. During the evacuation,oil-water mixture would be inevitably produced,therefore it’s important to study on the manifold for oil-water mixture cut. Through the analysis of the manifold and opera-tion for oil-water mixture cut at the end of line (EOL) when empting mobile petroleum pipeline by water,a new manifold design was proposed in this paper. A three-way ball valve was used instead of two gate valves. Experimental platform was set up to measure the flow characteristics of the three-way ball valve,and the feasibility of the three-way ball valve as the oil-water mixture cut valve was proved. Results show that the new manifold ensures the quickness and accuracy of the mixture cut and make the cut process easier.%排空是机动管线的一项经常性作业。在水顶油排空过程中，不可避免地会产生混油，因此混油的切割工艺尤为关键。通过对机动管线水顶油排空作业终端混油切割流程、设备操作的分析，提出了采用1个三通球阀代替2个闸阀的切割流程，自行搭建了实验平台，测量了三通球阀的流动特性，论证了三通球阀作为机动管线混油切割阀的可行性。实验表明，新流程的使用降低了切割操作难度，提高了切割作业的快速性和准确性。