津华管道冷热油交替输送工艺应用研究

摘要

The mathematical model was developed to describe the physical process of batching cool and hot crud oil.The hydraulic and thermal variation process of Jinhua pipeline batching transportation of Jidong crude oil and imported crude oil was simulated by self-developed calculation program.Different transportation schemes were compared to determine an appropriate operation scheme of Jinhua pipeline.The results showed after the number of batching transportation cycle reaches to 2 or 3,the suction oil temperature of the next station changed periodically.The batching transportation safety of cool and hot crude oil can all be improved by heating the front cool crude oil or increasing the throughput of hot crude oil.By comparing different scheme, the appropriate batching transportation scheme for Jinhua pipeline in winter was determined.%针对管道冷热油交替输送过程，建立了数学计算模型并编制了计算程序，对津华管道交替输送冀东原油(热油)与进口原油(冷油)过程进行了水力热力模拟计算；从安全性和经济性等方面，对于不同输送方案进行了比选和确定。研究结果表明，当交替输送循环达到2~3次后，进站油温将呈现周期性的变化；对于前行的冷油(进口原油)进行提前加热或适当热油(冀东原油)输送批量，都可提高交替输送的安全性。通过比选，确定了津华管道冬季适宜的冷热油交替输送方案。