增压多级冷凝的油气回收方法研究  

Study on Vapor Recovery Method of Pressurized Multi-stages Condensation

作　　者：鲁洁明 杜垲[2] LU Jieming;DU Kai(Guangzhou Metro Design&Research Institute Co.,Ltd.,Guangzhou 510010,Guangdong China;School of Energy and Environment,Southeast University,Nanjing210096,Jiangsu,China)

机构地区：[1]广州地铁设计研究院股份有限公司,广东广州510010 [2]东南大学能源与环境学院,江苏南京210096

出　　处：《制冷技术》2021年第4期63-69,共7页Chinese Journal of Refrigeration Technology

摘　　要：本文建立了油气冷凝回收的相平衡方程计算及迭代求解模型,对油气的冷凝特性进行了计算研究,分析了冷却温度对油气冷凝回收效率及尾气排放浓度的影响;提出了一种油气增压多级冷凝回收流程,并对该流程进行建模仿真,研究了冷却温度与压力对系统总能耗的影响。结果表明:要达到国家排放标准,油气排放浓度相比于回收率对冷却温度的要求更为苛刻;综合考虑尾气排放浓度、总能耗与除水效率各方面的因素,将油气冷凝压力设计为0.6~0.65 MPa较为合适。The phase equilibrium equation calculation and iterative solution model of gasoline vapor condensation recovery are established;condensation characteristics of gas vapor are calculated and studied. The influences of cooling temperature on recovery efficiency and emission concentration are analyzed. Calculation and analysis on the condensation characteristics of gasoline vapor is made. An optimized pressurized condensation vapor recovery process is proposed, along with modeling and simulation of the system. The condensation characteristics of gasoline vapor and the influence of temperature and pressure on the total system energy consumption is analyzed. The results show that, to meet the national emission standard, requirement of vapor emission concentration on cooling temperature is more stringent than that of recovery rate. Based on an overall consideration of various factors, it is most appropriate to set vapor pressure between 0.6-0.65 MPa.

关 键 词：油气回收 增压冷凝 功耗分析 

分 类 号：TB611[一般工业技术—制冷工程] TQ051.5[化学工程]