油田加热炉经济运行评价方法与优化

发布时间：2018-04-23 18:30

本文选题：加热炉 + 指标限值　；参考：《东北石油大学》2016年硕士论文

【摘要】：油田加热炉是油田生产中主要耗能设备之一,加热炉的高效运行对油田的节能降耗工作至关重要,如何合理评价加热炉的能效情况是加热炉高效运行的前提。本文通过大量现场测试数据研究了加热炉热效率与负荷率的关系,研究结果表明,加热炉热效率随着负荷率的变化而变化,一般规律为先增加后降低,或随着负荷率的增加而增加;分析了排烟温度、空气系数、炉体外表面温度、环境温度等对油田加热炉热效率的影响,得出排烟温度越高、空气系数越大、炉体外表面与环境温差越大,加热炉效率越低的结论。确定了加热炉的评价指标为热效率、排烟温度、空气系数、炉体外表面与环境温差。根据现场测试数据采用最小二乘法拟合得到不同类型、不同额定功率范围加热炉热效率的一、二、三级限值与负荷率的关系,采用统计方法确定了其他3项指标的合格限值。提出了采用多指标加权综合评价法对加热炉的运行进行综合评价,评价结果为一级、二级、三级经济运行和不合格。应用最优回归构权法确定了热效率、排烟温度、空气系数、炉体外表面与环境温差等4个指标的权重。综合评价以热效率指标为主,其他指标为辅,根据热效率达到各级限值的情况和其它3项指标合格与否,计算各个单项指标得分,通过加权计算综合得分,据此评价加热炉的运行状态。根据评价结果研究给出低经济运行级别的加热炉的优化调整方案,以实现加热炉的高效运行。根据研究成果,应用Microsoft Visual C++编制了加热炉经济运行优化软件,该软件具有对被测加热炉进行经济运行评价、参数优化等主要功能。
[Abstract]:Oil field heating furnace is one of the main energy consuming equipment in oilfield production. The efficient operation of heating furnace is very important to save energy and reduce consumption in oil field. How to evaluate the energy efficiency of heating furnace is the premise of high efficiency operation of heating furnace. In this paper, the relationship between heat efficiency and load rate of reheating furnace is studied through a large number of field test data. The results show that the heat efficiency of reheating furnace changes with the change of load rate, and the general rule is that the heat efficiency increases first and then decreases. The influence of exhaust gas temperature, air coefficient, outside surface temperature and ambient temperature on the thermal efficiency of oil field heating furnace is analyzed. The higher the exhaust gas temperature, the greater the air coefficient. The larger the temperature difference between the external surface of furnace and the environment, the lower the furnace efficiency. The evaluation indexes of reheating furnace are thermal efficiency, exhaust temperature, air coefficient, temperature difference between outside surface and environment. According to the field test data, the relationship between the first, second and third limit values of heating efficiency of different types and rated power range and the load rate is obtained by least square method. The qualified limit values of the other three indexes are determined by statistical method. The multi-index weighted comprehensive evaluation method is used to evaluate the operation of heating furnace. The evaluation results are first, second and third economic operation and unqualified. The weight of thermal efficiency, exhaust temperature, air coefficient and temperature difference between furnace surface and environment were determined by the optimal regression weight method. The comprehensive evaluation takes the thermal efficiency index as the main index and the other indexes as the supplement. According to the condition that the thermal efficiency reaches the limit value at all levels and whether the other three indexes are qualified or not, the scores of each single index are calculated, and the comprehensive score is calculated by weighted calculation. The operation state of heating furnace is evaluated accordingly. According to the evaluation results, the optimization and adjustment scheme of the heating furnace with low economic operation level is given to realize the efficient operation of the furnace. According to the research results, the software of economic operation optimization of reheating furnace is programmed by using Microsoft Visual C. the software has the main functions of evaluating the economic operation and optimizing the parameters of the furnace under test.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE963

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