不同功率下油田加热炉数值模拟研究

发布时间：2018-05-05 20:48

  本文选题：油田加热炉 + 数值计算　； 参考：《东北石油大学》2017年硕士论文

【摘要】：油田加热炉这一装置在油田中转站、联合站中扮演着非常重要的角色。特别是类似于大庆油田这样处在气候比较寒冷地区的油田,其正常的生产需要用到更多、质量更好的加热炉。在过去很长一段时间内,人们主要通过工程计算、现场试验的方法,寻找性能表现更佳的加热炉设备,这种方法的主要缺陷是人工、时间成本高。采用全新的数值方法,不但能够提高研究效率,而且能够使研究参数波动范围进一步拓展,促进研究的深入。本文通过数据模拟工具PHOENICS针对加热炉炉膛中的燃气燃烧展开数值模拟研究,针对加热炉内部不同部位的温度进行分析,创建燃烧、幅射换热、对流换热和热流体流动的模型;创建能够反映出炉膛中各种变化的数学模型,应用恰当的数值模拟方法,监测油田加热炉试验台并采集相关的数据,根据这些数据绘制实际温度、速度及压力分布曲线图,可由定性与定量两个角度反映炉膛的实情。检测结果和数值模拟情况展开对比,以便确定其是否精准。结果显示:加热炉数值模拟结果和试验站测量结果基本吻合,计算模拟结果较为准确。燃烧器1.5MW、炉膛直径1m的条件下,20%、40%、60%、工况下炉膛过粗过长,80%工况时炉膛过长,加热炉100%工况下,加热炉壳体局部呈现太高的温度,表现较大的热应力,极在可能产生烧窗事故。因此,要求缩短加热炉长,增加直径,在保障安全运营的基础下,达到降低耗钢量的目的。
[Abstract]:The oil field heating furnace plays a very important role in the oil field transfer station and the combined station. Especially in the colder climate areas such as Yu Daqing oil field, its normal production needs more heating furnace with better quality. In the past a long time, people mainly through engineering calculation, field test method, to find better performance of heating furnace equipment, the main defect of this method is labor, high time cost. The new numerical method can not only improve the efficiency of the research, but also further expand the range of the fluctuation of the research parameters, and promote the further study. In this paper, the numerical simulation of gas combustion in furnace is carried out by the data simulation tool PHOENICS, and the models of combustion, radiation heat transfer, convection heat transfer and heat fluid flow are established by analyzing the temperature in different parts of the furnace. A mathematical model which can reflect all kinds of changes in the furnace is created, and the appropriate numerical simulation method is used to monitor the oil field heating furnace test-bed and collect the relevant data. According to these data, the curves of actual temperature, velocity and pressure distribution are plotted. The facts of furnace can be reflected from both qualitative and quantitative angles. The test results are compared with the numerical simulation to determine whether they are accurate or not. The results show that the numerical simulation results of the furnace are in good agreement with the measured results of the test station, and the simulation results are more accurate. When the burner is 1.5MW, the furnace diameter is 1m m, the temperature of the shell is too high, and the thermal stress is high, and the window burning accident is likely to occur under the condition that the furnace is 80% too thick and 80% too thick. Therefore, it is necessary to shorten the heating furnace length, increase the diameter, and achieve the purpose of reducing steel consumption on the basis of ensuring safe operation.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE93
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本文编号：1849243