给水泵

• Both units ( 2x300mw ) of one power plant in india , designed and constructed by china , employ feedwater system composed of three 50 % capacity motor driven feedwater pumps , one low load feedwater control valve and one main motor - operated - valve
  由我国承建的印度某电厂两台300mw发电机组,其给水系统设三台电动调速给水泵、一个低负荷给水调节阀(用于低负荷水位控制)和一个电动主闸阀。
• The 1st and 2nd order perturbed identification results that represent the strengthened effects on bending rigidity of the rotor caused by the impellers and the sleeves on the shaft of the pump are given , and the modified dynamic models of the rotor are obtained
  给出了给水泵转子上的热装叶轮、轴套对转子刚度产生加强作用的一、二阶摄动识别结果，得到了修正的给水泵转子系统动力学计算模型。
• Abstract : this paper apply asme & quot; feed water pump npsh analysis during load rejection & quot; theory to check bfp npsh of zhuhai power plant 700mw units in the condition of vwo and also confirm the calculating result by load rejection test
  文摘:利用asme的“甩负荷时给水泵汽蚀余量的分析”理论，校核了珠海电厂容量700mw机组在最恶劣工况即阀全开跳机工况时的给水泵汽蚀余量，并在甩负荷时，进行了试验验证。
• This thesis analyses the main reasons of the vibration of the water pump , support the malfunction model of water pump system and mechanism of the vibration . this thesis analyses the gears transmission , bring forward the method of how to deal with the malfunction signal of the gears
  本文研究了引起水泵振动的主要原因，给水泵系统的故障模式和振动机理，对给水泵系统中的齿轮传动付进行了分析，提出了分析齿轮故障信号的方法。
• Furthermore , a condition monitoring and fault diagnosis system of asynchronous motors , which has been in tentative operation on - site , is discussed in detail . hou zhiyong ( electric power engineering ) directed by prof . li heming and senior engineer wang litian
  在上述研究的基础上，针对山西娘子关发电厂7 #给水泵（ yk2300 - 2 / 990笼型异步电动机） ，研制大型异步电动机状态监测与故障诊断系统，目前已完成安装调试，试运行阶段效果良好。
• During unit startup and load is lower than 15 % , drum level is controlled by feedwater control valve , feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 % , feedwater control valve is closing at fixed speed determined by function module , main motor - operated - valve is opened automatically , control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 % , control valve is closed fully , and main motor - operated - valve is open fully , drum level is controlled by one pump ; when load is more than 50 % , first pump is kept in operation , second pump is putting into operation automatically and
  在机组启动、冲转及机组并网至15 %负荷阶段,给水泵维持在最低安全转速下运行,汽包水位由低负荷给水调节阀自动控制; 15 %至25 %负荷阶段,给水调节阀由函数模块按照一定的速率自动平滑关闭,主给水电动门自动打开,汽包水位控制方式自动无扰切换为给水泵自动控制;负荷在25 %至50 %阶段时,给水调节阀已完全关闭,主给水电动门已完全打开,水位控制已全由单台给水泵承担;负荷大于50 %后,在第一台给水泵运行的同时,第二台给水泵自动无扰投入。
• It is appropriate for measuring end temperature of bearing liner or other works , e . g . , push bearing liner of steamer , supporting bearing liner or push bearing liner of electromotor main axis , bearing liner of coal pulverizer , bearing liner of high efficient feed water pump , bearing liner of compression machine and kinds of other objects inpetrochemical plant
  适用于测量轴瓦或其它机件的端面温度，如：汽轮机推力轴瓦，电机主轴支持瓦推力瓦，磨煤机大瓦和高效给水泵轴瓦石油化工厂压缩机轴瓦和各种机件物体的表面测量。
• Establishing on the foundation of the project of " the monitoring state and maintenance assist support system of feed pump for 300mw unit , shiheng power plant , shandong " , this paper ' s content comprise on - line monitoring and thermodynamic calculation on small steam turbine for feed water pump , and supply the necessary data for feed water pump ' s performance analysis , trouble analysis and small steam turbine ' s performance analysis , optimization , heat stress calculation and tremble monitoring
  <中文摘要> =本论文的内容是建立在“山东石横电厂给水泵状态监测与维修辅助支持系统”项目基础上，涉及大型机组锅炉给水泵驱动用小汽轮机进行在线监测和热力计算，为给水泵的性能分析、故障分析以及小汽轮机的性能分析和优化、热应力计算和震动监测提供必需的数据。