乌鄯线冬季冷热油交替输送运行方案

为保障西部原油管道乌鄯线安全平稳运行,实现节能降耗输送,分析了乌鄯线和阿独乌线外输哈国油物性、沿线油温、地温数据,进而探讨了乌鄯线冬季运行冷热油交替输送的可行性。研究结果表明：长输原油管道冬季低输量运行,其进站油温差距不大并与地温的变化趋势一致,沿线地温为冬季冷热油交替输送的重要参数;采用冷热油交替输送工艺,哈国油常温输送对北疆油物性影响不大;乌鄯线冬季运行采用冷热油交替输送,节约燃料天然气约51.6%,节能降耗效果明显,说明乌鄯线冬季运行采用冷热油交替输送具有可行性。

Alternating hot and cold oil transport program of Urumchi-Shanshan Oil Pipeline in winter

In order to ensure the safe and smooth operation of western Urumchi-Shanshan Oil Pipeline, and save energy and lower cost, this paper analyzes the properties of crude oil from Kazakhstan, oil temperature and ground temperature of Urumchi-Shanshan Oil Pipeline and Alasan-Dushanzi-Urumchi Oil Pipeline, moreover, feasibility of alternating hot and cold transport of Urumchi-Shanshan Oil Pipeline in winter is discussed. The results show that based on low throughout of long-distance pipeline in winter, the inlet temperature of oil changes little, and in the same trend of the ground temperature, ground temperature along the pipeline is an important parameter in alternating hot and cold transport in winter. By using alternating hot and cold transport technology, Kazakhstan Oil can be transported at ambient temperature, which barely affects the physical properties of northern Xinjiang Oil, and taking alternating hot and cold transport technique in Urumchi-Shanshan Oil Pipeline in winter can save about 51.6% of natural gas fuel, that is a substantial energy saving, and it is feasible to use alternating hot and cold transport technique in Urumchi-Shanshan Oil Pipeline in winter.