含蜡热油管道总传热系数新模型的实验研究
Experimental Study for New Model of Total Heat Transfer Coefficient of Waxy Hot Pipeline
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- 引用格式:
-
周刚,赵健,王倩楠,王蒙.含蜡热油管道总传热系数新模型的实验研究[J].天然气与石油,2016,34(4):0.doi:
Zhou Gang, Zhao Jian, Wang Qiannan, Wang Meng.Experimental Study for New Model of Total Heat Transfer Coefficient of Waxy Hot Pipeline[J].Natural Gas and Oil,2016,34(4):0.doi:
- DOI:
- 作者:
- 周 刚1 赵 健1 王倩楠1 王 蒙2
Zhou Gang, Zhao Jian, Wang Qiannan, Wang Meng
- 作者单位:
- 1.东北石油大学提高采收率教育部重点实验室,2.大庆油田有限责任公司化工集团东昊公司表活济厂
1.Key Laboratory of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University; 2.Surfactant Production Plant, Daqing Oilfield of CNPC
- 关键词:
- 传热系数;蜡沉积;参数波动;量纲分析;环道实验
Heat transfer coefficient; Wax deposition; Parameters fluctuations; Dimensionless analysis; Loop experiment
- 摘要:
- 通过分析起点温度、油品密度、流速、动力黏度、比热容、埋深处地温及清管后运行时间等多种因素与热油管道总传热系数之间的相关性,用4种无量纲数对总传热系数物理特性进行表征。通过环道实验装置设计无量纲实验,确定最优预测模型的函数形式及各无量纲数的物理意义,进一步提出了由无量纲数构成用于总传热系数预测的新模型。对东北某输油管道进行预测的结果表明,新模型的预测结果与反算法计算结果相比,终点温度平均相对误差降低2.85,在一定程度上解决了由于运行参数波动引起的预测误差偏大的问题。
The relativity between varied factors as the outlet oil temperature, oil density, flow rate, viscosity, specific heat capacity, buried temperature and running time after pigging and the overall heat transfer coefficient is studied in this paper with the characteristics of the physical properties of the overall heat transfer coefficient by four dimensionless numbers. The dimensionless experimental is designed through loop experimental apparatus to ascertain the formula form of optimal predicted models and physical significance of each dimensionless number, and further put forward a new model, which is composed of dimensionless numbers, for the prediction of overall heat transfer . The result of forecast on oil pipeline in the Northeast indicates that the average relative error lowers by 2.85% over the inverse calculation, which solves the issue of large prediction errors due to fluctuation of running parameters.
