摘要
为验证某大型船舶海水开式冷却系统自身阻力及运行工况对各类冷却末端用户供水流量和压力的影响。通过兆龙消防工程CAD软件,建立冷却系统管网三维模型,计算管网流场及水力特性,分析不同工况下冷却用户的流量及压力偏差。通过对冷却供水系统管网的优化分析,得出用户数量、用户冷却水流量、泵布置位置、水灭火系统上下环管破裂情况、管路阻力等对系统管水力特性和流量、压力分配比例的影响。目前系统配置的20台海水冷却泵全部开启可支撑管网系统正常工作,满足各冷却用户的冷却水流量需求;环状管网结构比较有利于分散管网上的水流和路径,对于抵抗局部管网破裂这类事故有较高的韧性和可靠性。
In order to verify the influence of self-resistance and operating conditions of the seawater open cooling system for large ships to the water supply flow and pressure of various cooling terminal users,the three-dimensional model of cooling system pipe network was established to calculate the flow field and hydraulic characteristics of pipe network.The flow and pressure deviation of cooling users under different working conditions was analyzed by Zhaolong Fire Engineering CAD software.Through the optimization analysis of the cooling water supply system pipe network,it was found that the number of users,user cooling water flow,pump layout,water fire extinguishing system’s upper and lower ring pipe rupture,pipeline resistance and other influences on the hydraulic characteristics of the system pipe and the proportion of flow and pressure distribution.All 20 seawater cooling pumps configured in the current system can support the normal operation of the pipe network system and meet the cooling water flow requirements of each cooling user;The ring pipe network structure is more conducive to dispersing the water flow and path on the pipe network,and has higher toughness and reliability to resist such accidents as local pipe network rupture.
作者
张晓阳
刘毅
潘锦平
马军
周炫
张宇伦
ZHANG Xiao-yang;LIU Yi;PAN Jin-ping;MA Jun;ZHOU Xuan;ZHANG Yu-lun(Marine Equipment Shenyang Bureau,Dalian Liaoning 116011,China;China Ship Development and Design Center,Wuhan 430064,China;Faculty of Engineering,China University of Geoscience(Wuhan),Wuhan 430074,China)
出处
《船海工程》
北大核心
2025年第2期46-52,共7页
Ship & Ocean Engineering
基金
中央高校基本科研业务费专项(2023097,162301242612)。
关键词
大型船舶
冷却水系统
水力特性
仿真研究
large ships
cooling water system
hydraulic characteristics
simulation study
