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dump test
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  甩负荷试验
     Study on dump test for 440 t/h CFB boiler
     440t/h循环流化床锅炉甩负荷试验研究
短句来源
     Principle and Analysis of Load Dump Test by Power Determining Method
     测功法甩负荷试验原理及分析
短句来源
     An Analysis on Load Dump Test of a 300 MW Unit
     国产引进型 300 MW 机组甩负荷试验分析
短句来源
     Study on Load Dump Test in the Introduced Home-made 300 MW Unit Without Bypass System
     国产引进型300MW机组无旁路甩负荷试验研究
短句来源
     Based on the logic control function of turbine′s DEH and combined with the results of the load dump test for Bengcheng Power Plant′s two 300 MW units,the major factors that inflence the speed control of the governor system and the operation safety of the imported type 300 MW unit are analysed and the noteworthy points and idea for enhancement are proposed.
     根据汽轮机组DEH的逻辑控制功能,结合彭城发电厂两台300MW机组甩负荷试验实践,分析了国产引进型300MW机组影响调节系统转速控制和运行安全性的主要因素及相应关系,提出了应注意的要点和改进意见。
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  “dump test”译为未确定词的双语例句
     Load dump anticipation(LDA) function are one of the important steps to ensure the success of the steam turbine load dump test,and this circumstance is vary rare.
     甩负荷预测功能是确保机组成功进行甩负荷的一项重要措施,大型汽轮机组中发生该功能失效的情况很少见。
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  相似匹配句对
     (v) test;
     第五章为测试过程;
短句来源
     Test.
     Test.
短句来源
     The design of automobile dump pump test-bed
     汽车机油泵试验台设计
短句来源
     Modal Test and Analysis of Dump Truck Frame
     自卸汽车车架模态试验与分析
短句来源
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This peper is based on the dynamic character theory in the Soverning system of steam turbine, accumulating aLarge number of field testing data of turbo-generatbrunit. Analysesset and reserches have found the relationship between themaximun momentary speed after load dump and the turbine load dumped. It can be shown by math expression and possesses acceptable accuracy in engeneering. The paper advances the idea of load dump perfomanca prediction of turbine governing system and its application...

This peper is based on the dynamic character theory in the Soverning system of steam turbine, accumulating aLarge number of field testing data of turbo-generatbrunit. Analysesset and reserches have found the relationship between themaximun momentary speed after load dump and the turbine load dumped. It can be shown by math expression and possesses acceptable accuracy in engeneering. The paper advances the idea of load dump perfomanca prediction of turbine governing system and its application method. This method can not only predict accurately the maximun momentary speed of turbine,but also avoid the risks of the normal load dump testing. This is of practical signiificance for both the service-life manasement of turbine rotor and the load management of the electric power sytem.

根据汽轮机调节系统动态特性理论,在积累大量汽轮发电机组现场试验资料的基础上,经过分析研究,发现汽轮机甩负荷后的转速飞升值与其卸去的负荷之间存在可用数学表达式描述的,具有工程容许精度的关系,从而提出了汽轮机调节系统用负荷性能预测的思想及其应用方法.采用这种方法,既可较准确地预测汽轮机局负荷后转速的动态超调量,又可避免常规甩负荷试验的风险,对于汽轮机转子寿命管理和电网负荷管理均有较重要的实际意义.

The effect of several casting parameters on flowability of aluminium alloys is studied.It is found that fluidity increases linearly with the increase of pouring temperature and casting section thickness;the latent heat of vaporization is one of the most important properties of polystyrene which influences the molten metal flow.Also the mechanism of metal flowing stop is studied by means of dumping tests.The results show that for pure aluminium and aluminium alloys with narrow freezing range the molten...

The effect of several casting parameters on flowability of aluminium alloys is studied.It is found that fluidity increases linearly with the increase of pouring temperature and casting section thickness;the latent heat of vaporization is one of the most important properties of polystyrene which influences the molten metal flow.Also the mechanism of metal flowing stop is studied by means of dumping tests.The results show that for pure aluminium and aluminium alloys with narrow freezing range the molten metal flowing is stopped when a solidification shell which has enough strength to resist the effective pressure head is formed at the flowing metal front.The mechanism of flowing stop is much different from that in the traditional green sand casting.

MechanismofFlowingStopofAl-SiAlloysinEPCProcessWEIZunjie;ANGeying(魏尊杰,安阁英)(SchoolofMaterialsScience.andEngineering,Harbininst...

Based on the logic control function of turbine′s DEH and combined with the results of the load dump test for Bengcheng Power Plant′s two 300 MW units,the major factors that inflence the speed control of the governor system and the operation safety of the imported type 300 MW unit are analysed and the noteworthy points and idea for enhancement are proposed.

根据汽轮机组DEH的逻辑控制功能,结合彭城发电厂两台300MW机组甩负荷试验实践,分析了国产引进型300MW机组影响调节系统转速控制和运行安全性的主要因素及相应关系,提出了应注意的要点和改进意见。

 
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