摘要
某机组试验台海水冷却管网的组件设备多,管路布置密集,管网内流体具有复杂的流动状态,多变的流态易影响机组的正常运行。为了提高试验台的可靠性,加强同类型试验台海水冷却管网的稳定性,本文深入分析了该试验台海水冷却管网的结构形式,建立了水力计算模型,并结合试验采集了该管网的水力特性数据,试验结果和模型计算值具有较好的一致性。研究表明,对于母管制海水冷却管网,影响该系统可靠性的主要因素包括管网的局部阻力损失和水泵进口流速,在同类型管网设计过程中,要尽量减少两者的影响。
There are many components and equipments in seawater cooling pipeline network of marine diesel engine power station onshore test bench,and the pipeline layout is dense.The fluid in the pipeline network has complex flow state,which easily affects the normal operation of diesel engine group.In order to improve the reliability of the test bench and enhance the stability of the seawater cooling pipe network of the same type of test bench,the structure of the seawater cooling pipe network of the test bench has been analyzed in depth,the hydraulic calculation model has been established,and the hydraulic characteristic data of the pipeline network has been collected in combination with the test.The experimental results are in good agreement with the calculated values of the model.The results show that the main factors affecting the reliability of the system include the local resistance loss of the pipeline network and the inlet flow rate of the pump.In the process of designing the same type of pipeline network,the influence of both factors should be minimized.
作者
陆彬
陈晓波
周杰
Lu Bin;Chen Xiaobo;Zhou Jie(Wuxi Division of No.703 Research Institute of CSIC,Wuxi Jiangsu 214151,China)
出处
《工程与试验》
2019年第3期78-80,82,共4页
Engineering and Test
关键词
试验台
海水冷却管网
水力计算模型
局部阻力损失
test bench
seawater cooling pipeline network
hydraulic calculation model
online insulation monitoring
local resistance loss
