多用途液化气船BOG再液化系统流程模拟分析  

Process Simulation Analysis of BOG Re-liquefaction System for LPG/LEG Carrier

作　　者：叶立[1] 黄飞 林海波[2] 石艳[2] 肖杨杨 YE Li1, HUANG Fei1, LIN Haibo2, SHI Yan2, XIAO Yangyang1(1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Sichuan Provincial Key Laboratory of Process Equipment and Control Engineering, Sichuan Zigong 643000, Chin)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]过程装备与控制工程四川省高校重点实验室,四川自贡643000

出　　处：《船舶工程》2018年第2期17-22,92,共7页Ship Engineering

基　　金：四川省高校重点实验室项目(GK201401);四川理工学院人才引进项目(2016RCL04)

摘　　要：从装载多种液货的角度出发,选择单级压缩与两级压缩中间完全冷却系统相复叠的形式组成新的再液化系统。运用流程模拟软件Aspen Plus模拟设计的多用途液化气船再液化系统各模块装载不同液货,分别对再液化系统的循环效率、制冷系数和压缩机能耗等进行模拟计算分析。分析不同冷凝温度条件下所设计的再液化系统的运行情况,给出各液货最佳冷凝温度的范围,并对再液化系统进行优化。最后,对装载液货LEG时,复叠式制冷循环高温制冷剂采用R134a和R410A时所取得的不同效果进行分析。Since several kinds of liquid cargo will be loaded, a new re-liquefaction system is formed by the combination of single-stage compression and two-stage compression intermediate complete cooling system. The LPG/LEG combine carrier re-liquefaction system is simulated by process simulation software Aspen Plus when loading different liquid cargo. The cycle efficiency, the coefficient of refrigeration and the energy consumption of the compressor are analyzed respectively. The operation situation of the re-liquefaction system designed under different condensing temperatures is studied, and the range of optimum condensation temperature of each liquid is given. Some degree of optimization is carried out for the re-liquefaction system. When the liquid cargo LEG is loaded, the different effects of R134 a and R410 A are analyzed for the cascade refrigeration cycle high temperature grade refrigerant.

关 键 词：多用途液化气船 液化石油气 再液化系统 模拟分析 

分 类 号：U674.13[交通运输工程—船舶及航道工程] TE965[交通运输工程—船舶与海洋工程]