大型舰船环状冷媒水系统并网运行模拟分析  

Simulation Analysis of Parallel Operation of a Loop Refrigerant Water System for Large Ships

作　　者：张轩[1] 周炫[1] 金正涛[1] 李伟光[1] 

机构地区：[1]中国舰船研究设计中心,武汉430064

出　　处：《船海工程》2017年第3期139-142,共4页Ship & Ocean Engineering

基　　金：国家部委基金资助项目

摘　　要：针对某大型舰船环状冷媒水系统形式及特点,利用Flow Master建立该环状冷媒水系统的模拟仿真平台。通过对环状冷媒水系统单泵、双泵、三泵以及四泵多种并网运行工况的模拟计算,分析不同运行工况下用户区内与区间的流量分配特性与水力失调情况。模拟结果表明,系统在并网运行时,各用户区内支路流量分配较均衡;单泵供全舰用户运行时,各区用户模拟流量为设计流量的26.7%~38.8%,区与区之间流量最大不平衡率为31.1%,出现明显水力失调现象;对于多泵联合供全船运行工况,各区用户模拟流量分别为设计流量的51.8%~58.4%、77.0%~76.2%、88.7%~90.8%,能适应舰船不同负荷需求,区与区之间流量最大不平衡率小于15%,流量分配较均匀,满足工程要求。Aiming at the loop refrigerant water system for large ships, a simulation platform was established in FlowMaster environment. Different parallel operation modes with single pump, 2 pumps, 3 pumps and 4 pumps respectively were simulated to analyze the flow distribution characteristics and hydraulic misadjustment of the system under different modes. The results showed that the flow distribution in one user area is good and relatively balanced for the system parallel operation. The simulation flow rates in each user area range from 26.7% to 38.8% of the design flow rates respectively. However, the largest flow imbalance ratio between users area is 31.1% with obvious hydraulic misadjustment. For parallel operation with multiple pumps, the flow rate in each user area can reach 51.8% - 58.4%, 77.0% - 76.2%, and 88.7% - 90.8% of design flow rates for 2 pumps, 3 pumps and 4 pumps modes respectively. The largest flow imbalance ratio is less than 15% which may meet the needs of different load and satisfy engineering practice as well.

关 键 词：环状冷媒水系统 并网运行 流量分配 水力失调 

分 类 号：U664.8[交通运输工程—船舶及航道工程]