摘要
传统原油加热系统采用燃料提供所需热量,不仅能耗较大,且会引发环境污染和碳排放。为实现油田清洁能源替代化石能源,基于站场区域热负荷特性分析结果,设计了一种太阳能光热转换系统用于原油加热,通过HYSYS软件对加热过程进行了热力学模拟,从系统热效率、系统[火用]效率、设备[火用]损等方面分析了系统能效水平,最后结合站场热负荷和太阳能利用情况,对节能效果进行了评价。结果表明,当压缩机出口压力为160 kPa时,设置预热器时的系统热效率为87.7%,系统[火用]效率为69.5%,余热回收率为73.1%,系统运行效果较优;加设预热器与不加设预热器相比,可以显著提高系统性能;7月和8月应用太阳能光热转换系统可以满足原油加热的需求,其余月份仍需常规燃气加热炉补充热量,每月可节约燃料气38 001~66 310 m^(3)。
The traditional crude oil heating system uses fuel to provide the required heat,which not only consumes a lot of energy,but also causes environmental pollution and carbon emissions.In order to realize the replacement of fossil energy by clean energy in oilfield,the solar photovoltaic conversion system has been ap-plied for crude oil heating based on the analysis results of thermal load characteristics in station.By HYSYS software,the thermodynamic simulation of heating process has been carried out,and the energy efficiency level of system has been analyzed from system thermal efficiency,system exergic efficiency and equipment exergic loss and other related aspects.Finally,the energy conservation effect is evaluated according to the ther-mal load and solar utilization of the station.The results shows that when the outlet pressure of compressor is 160 kPa,the thermal efficiency of system with the preheater is 87.7%,the exergic efficiency is 69.5%,and the waste heat recovery rate is 73.1%,which is better for the system operation effect.Compared with without preheater,the system performance can be improved significantly by preheater.The application of solar photo-voltaic conversion system in July and August can meet the demand for crude oil heating,and the rest of the month still needs to supplement the heat of conventional gas heating furnace,which 3 can save 38001 m^(3)~66310 m^(3) of fuel gas per month.
作者
孙蕾
SUN Lei(Hulunbuir Company of Daqing Oilfield Co.,Ltd.)
出处
《石油石化节能与计量》
2025年第6期48-52,共5页
Energy Conservation and Measurement in Petroleum & Petrochemical Industry
