温度对冷热原油交替输送影响的数值模拟

Numerical Simulation of the Impact of Temperature on Batch Transportation of Cold and Hot Crude Oils

为了解不同原油温度对冷热原油交替输送过程中混油量的影响,建立冷热原油交替输送计算模型,运用计算流体动力学FLUENT软件采用有限体积法对原油温度进行数值模拟,得到不同温度条件下冷热原油交替输送过程中的混油分布规律并对模拟结果进行分析。结果表明,热油前行会比冷油前行产生更多的混油;在热油前行的情况下,适当提高冷油出站温度会减少混油量;在冬季埋地管线地温较低时,应多进行冷油前行、热油后行的输送方式来减少混油量。

In order to realize the influence of different temperature on the contaminated oil in pipe of batch pipelining of cold and hot crude oils,a mathematical calculation model is established for batch transportation.Numerical simulations is performed by using FLUENT software and adopting the finite volume method to get the distribution law of contaminated oil under the condition of different temperatures in pipe of batch pipelining of cold and hot crude oil.and the simulation results were analyzed.The result shows that the hot oil forwarding will produce more contaminated oil than that produced by cold oil forwarding:under the condition of the hot oil forwarding,contaminated oil can be reduced by increasing the temperature of outlet cold oil;when the temperature of buried pipeline is low in winter,the method of batch transportation with cold oil forwarding and hot oil trailing shall be conducted to decrease contaminated oil.