摘要
为减少管道冬季运行的安全隐患,降低能耗,西部某原油管道从运行环境和油品物性等方面采取了一系列举措,包括从单一油品的顺序输送到四种油品的混合输送;从全线启炉到一站式启炉;从外输温度50~55℃降至35~40℃（余热回收）等。对比混合输送和单一油品顺序输送,及热媒油换热和油油换热（即余热回收）的优缺点,得出混合输送和余热回收更具优越性,不仅有利于冬季安全运行（增加冬季安全停输时间,避免凝点异常反弹等）,还极大地降低了管道能耗,其中四混油的外输也为管道冬季常温输送提供了理论支持。
In order to reduce potential safety hazard and energy consumption of pipeline operation in winter,certain western crude oil pipeline company has taken a series of measures in optimizing operational environment and improving oil properties,such as shifting batch transportation to blending transportation of four crude oils,starting heat furnace at initial station instead of that of each heating stations and decreasing output temperature from 50-55℃ to 35-40℃(by waste heat recovery).The advantages of blending transportation and recovery of waste heat are concluded through comparing blending transportation with batch transportation and comparing heat medium exchanger with oil-oil heat exchanger.These measures are beneficial to safe pipeline operation in winter(increasing safety margin of pipeline shutdown time thus avoiding abnormal fluctuation of freezing point),and can greatly reduce pipeline energy consumption.In particular,blending transportation of four kinds of oils can also provide a theoretical support for transporting crude oil by pipeline at normal temperature in winter.
出处
《天然气与石油》
2015年第2期18-22,52,共6页
Natural Gas and Oil
关键词
西部原油管道
顺序输送
混合输送
加热方式
换热方式
节能降耗
Western crude oil pipeline
Batch transportation
Blending transportation
Heating mode
Heat exchanging mode
Energy saving and consumption reducing
