船舶主机冷却水系统的仿真研究  

Simulation study of cooling water system for main marine diesel engine

作　　者：陈宁[1] 李雯文[1] 王之民[1] 朱妍[1] 

机构地区：[1]江苏科技大学能源与动力工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2014年第6期547-551,562,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：江苏省高校科研成果产业化推进项目(JHB2011-41)

摘　　要：以镇江船厂的全回转港作拖船为研究对象,以传热学理论为基础,对船舶主机冷却系统的传热机理进行分析,分步建立了主机冷却水系统中各部件的热力数学模型.在Matlab/Simulink下建立整个冷却水系统的数学模型,将实船参数代入进行实时动态仿真,得出主机淡水温度的动态响应曲线,与实际结果相符,确定了模型的正确性.同时在系统中加入了PID调节的温度控制三通器,实现了主机温度控制系统的无偏差调节.利用Lab VIEW SQL Toolkit的数据通信,将Simulink中的仿真结果在仪表盘上实时显示,建立了一套基于SQL数据库的船舶主机冷却水监控报警系统.Taking the harbor tug manufactured by Zhenjiang shipyard as the research object,on the basis of heat transfer theory,a dynamic thermodynamic mathematic model has been established by analyzing the heat transfer mechanism in the cooling water system for main marine diesel engine. A mathematical model for cooling water system is established on the basis of related parameters from real ships in the Matlab / Simulink. The temperature curve of the fresh water of main engine is obtained,which is very close to the actual results and indicates the correctness of the model. In the system,a PID regulator is inserted to control the temperature control valve,which implements the temperature adjustment without deviation. The result of simulation is displayed on the dashboard by using the communications Toolkit of Lab VIEW SQL data,and a monitoring alarm system is developed.

关 键 词：冷却水系统 热力数学模型 PID调节器 监控报警 

分 类 号：U664.814[交通运输工程—船舶及航道工程]