盘锦—锦州稠油输送管道运行参数优化研究

发布时间：2018-06-20 07:09

本文选题：原油管道 + 优化运行　；参考：《东北石油大学》2017年硕士论文

【摘要】：石油是我国的重要能源之一,在石油储运过程中,伴随着石油用量的不断增多,石油管道建设处于高速发展时期,随着管道的建成投产,其优化运行问题开始受到越来越多的关注。如何保障管道的安全、经济运行,提高管输效率,降低管输成本,日益受到重视。加热输送是目前输送高粘易凝油品普遍使用的方式。热油管道在实际运行过程中,管道的能耗费用主要包括输油泵的动力费用和加热炉的燃料费用。对于一条热油管道,在工艺流程、设备配置、外部环境条件等因素给定的前提下,随着工艺运行方案的变化,相应的电费与燃料费往往按相反的方向变化。本文针对盘锦输油管道运行温度较高,能源损耗较大的现状,建立以各站进站温度为决策变量,以输油总能耗最小为目标函数的管道优化运行数学模型,并应用动态规划法来求解优化模型。实现了输油管道优化运行的目的,使加热原油管道系统处于安全、经济的最佳运行工况。通过辽河油田成品油管道不同输量下的实例,对模型及算法进行了验证。本文研究在控制盘锦线外输原油中稀油掺入量的基础上,优化盘锦线输油参数。目的为了减少管道安全运行费用,以各站出站压力和温度为变量,以管道系统设计参数和设备工作负荷等为约束条件,在原油输送稳态条件下通过对盘锦线原油粘温特性拟合以及对各输油站和输油管道系统的热力计算和水力计算,得出管道沿线温降情况和压降情况。计算分析出站排量、温度和压力之间的关系,得出管道运行的安全区间。在任务输量下,分析各站输油泵能耗和燃料油消耗的关系,计算出不同输油参数下全线安全运行时的能耗费用,得出最优进站油温、加热温度和出站压力等运行数据,确定输油泵和加热炉运行的最佳匹配。在保证完成全线任务输量的同时,使得全线输油安全经济运行。
[Abstract]:Petroleum is one of the important energy sources in our country. In the process of oil storage and transportation, with the increasing of oil consumption, the construction of oil pipeline is in the period of high speed development, with the completion and production of the pipeline, More and more attention has been paid to its optimal operation. More and more attention has been paid to how to ensure the safety and economic operation of pipeline, improve the efficiency of pipeline transportation and reduce the cost of pipeline transportation. Heating transportation is a widely used way to transport high-viscosity and easy-coagulant oil products at present. In the actual operation of hot oil pipeline, the energy consumption cost of pipeline mainly includes the power cost of oil pump and the fuel cost of heating furnace. For a hot oil pipeline, with the change of the operation scheme, the electricity and fuel cost often change in the opposite direction under the premise of the process flow, equipment configuration, external environmental conditions and other factors. In view of the high operating temperature and large energy loss of Panjin oil pipeline, a mathematical model for optimal operation of the pipeline is established, in which the temperature of each station is taken as the decision variable and the minimum energy consumption of oil transportation is taken as the objective function. The dynamic programming method is used to solve the optimization model. The purpose of optimizing the operation of oil pipeline is realized, and the heating crude oil pipeline system is in the safe and economical operation condition. The model and algorithm are verified by an example of Liaohe oil pipeline. On the basis of controlling the amount of dilute oil in the crude oil transported out of the panjin line, this paper studies the optimization of the oil transportation parameters of the panjin line. In order to reduce the cost of pipeline safe operation, the pressure and temperature of each station are taken as variables, and the design parameters of pipeline system and the working load of equipment are taken as constraints. Under the steady state condition of crude oil transportation, the temperature drop and pressure drop along the pipeline are obtained by fitting the viscosity and temperature characteristics of Panjin crude oil as well as the thermodynamic calculation and hydraulic calculation of each oil transportation station and pipeline system. The relationship among the displacement, temperature and pressure of the station is calculated and analyzed, and the safe section of pipeline operation is obtained. Under the task load, the relationship between pump energy consumption and fuel oil consumption in each station is analyzed, the energy consumption cost of the whole line is calculated under different oil transportation parameters, and the optimal operation data such as oil temperature, heating temperature and exit pressure are obtained. Determine the optimal match between the oil pump and the furnace. At the same time, make the whole line safe and economical 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】：TE832

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