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输气管道杂质沉积量模拟计算

Inner Mongolia Petrochemical Industry(2014)

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Abstract
输气管道日常管理中缺少对管道内杂质沉积量的预测,使得在实际生产中,输送效率成为确定管道清管周期、评价清管效果的唯一定量指标,具有一定的局限性.为此,根据舍杂质沉积管道内流体动力学特点,采用欧拉法建立了输气管道杂质沉积预测模型,以川渝地区输气管线为例,模拟计算了管道内杂质沉积平均厚度、沉积量及含杂质沉积管道当量直径并将一次清管作业实际排污量与模拟结果进行对比,验证了模型.计算得出模拟计算排污量与实际排污量相差47.9m3,并得到了管道输气量和运行压差对杂质沉积量的影响规律:①压差一定时,管道杂质沉积量随输气量增大而降低;②起点压力一定时,管道杂质沉积量随压差增大而增大.
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