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the differential expansion
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  胀差
     By analyzing the N_((c)) 100—— 8.83/535 steam turbine cylinder and rotor some dead point of thermal expansion,size,direction and the effect factors which create the differential expansion,combination the real operation state at the meantime,The author obtains the differential expansion variable law and feature as the steam turbine starts,stops and the work condition changes, and some specific methods controlling differential expansion are put forward.
     通过对 N_(c) 100——8.83/535型汽轮机汽缸和转子热膨胀的死点、大小、方向及产生膨胀差值的影响因素分析,同时结合实际运行情况,得出了汽轮机在启、停及变工况时胀差的变化规律和特点,并提出了一些控制胀差的具体措施.
短句来源
     The differential expansion is a very important monitor parameter during the operation of steam turbine. It reflects relative relationship of heat expansion between the rotor of the steam turbine and the cylinder.
     汽轮机胀差是汽轮机运行时的重要监视参数,它反映了汽轮机转子和汽缸热膨胀量的相对关系。
短句来源
     The differential expansion cause of the supercritical 500MW unit is described, the turbine differential expansion cause of the supercritical 500MW unit made in Russia is analyzed and the pertinent control methods is achieves. It achieves actual effect and makes sure the power unit’s operation in safety and economy.
     叙述了超临界500MW机组胀差产生机理,分析了俄制超临界500MW汽轮机胀差产生的原因并采取了相应的控制方法,取得实效,确保了机组安全、经济运行。
短句来源
     If the differential expansion is beyond the guard - line and no effective measures are taken to control the differential expansion, the only way is to switch off and stop the turbine.
     当胀差超过警戒值时,如没有控制汽轮机胀差的有效措施,只能打闸停机。
短句来源
     Because the heating equipment is designed to control the differential expansion during start-up and shut-down of a unit,the equipment will bring a adverse influence on the expansion of a unit if it has malfunction itself.
     法兰螺栓加热装置的设计是为了控制机组启停过程中的胀差,但若加热装置本身出现问题,也就必然会对机组的膨胀产生不利影响。
短句来源
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  汽轮机胀差
     The differential expansion is a very important monitor parameter during the operation of steam turbine. It reflects relative relationship of heat expansion between the rotor of the steam turbine and the cylinder.
     汽轮机胀差是汽轮机运行时的重要监视参数,它反映了汽轮机转子和汽缸热膨胀量的相对关系。
短句来源
     If the differential expansion is beyond the guard - line and no effective measures are taken to control the differential expansion, the only way is to switch off and stop the turbine.
     当胀差超过警戒值时,如没有控制汽轮机胀差的有效措施,只能打闸停机。
短句来源
     The differential expansion cause of the supercritical 500MW unit is described, the turbine differential expansion cause of the supercritical 500MW unit made in Russia is analyzed and the pertinent control methods is achieves. It achieves actual effect and makes sure the power unit’s operation in safety and economy.
     叙述了超临界500MW机组胀差产生机理,分析了俄制超临界500MW汽轮机胀差产生的原因并采取了相应的控制方法,取得实效,确保了机组安全、经济运行。
短句来源
  “the differential expansion”译为未确定词的双语例句
     A Simulation Research on the Differential Expansion of 125MW Steam Turbine during Starting and Stoping
     125MW汽轮机启停过程中的差胀仿真研究
短句来源
     The law of differential expansion variation under start/stop and normal operation for GEC Alsthom 600 MW turbine and factors influencing the differential expansion are described. The experience of expansion control is summarized.
     介绍GECALSTHOM600MW汽轮机启停、正常运行中的差胀变化规律以及影响差胀的变化因素,总结了控制差胀变化的经验。
短句来源
     During the differential expansion measurement of TSI,the conventional way of installationand adjustment can n0t overcome the considerable deviation between the actual characteristic of displacement/voltage variables and the theoretical characteristic of displacement/v0ltage variables. Thiswill cause the malfunction of TSI.
     论述了在汽轮机安全监视(TSI)差胀测量中,常规的安装调整方法无法克服涡流传感器测量系统实际位移──电压特性与理想位移──电压特性之间存在的较大误差,导致监视系统不能起到相应的作用;
短句来源
     In order to control the welding deformation of s teel members caused by the differential expansion and shrinkage in steel structu re the factors influencing the welding stress and caused the welding deformation are analyzed; at the same time corresponding control measures are presented.
     为有效控制钢结构因焊件的不均匀膨胀和收缩而造成的焊接变形 ,就焊接变形和焊接应力的各种影响因素进行分析 ,提出了相应的控制措施
短句来源
     On the basis of the local constructure and feature of N125~135/535/535 type turbo-generator the system analysis the characteristics of the rotor and cylinder's expansion during the generator starting find the rule of the differential expansion and combing with the abnormality of differential expansion during system starting of No. 4 units in Guixi power plant. The countermeasures and matters needing attention are put forword to guids the operators work
     根据N125-135/535/535型汽轮发电机组本体结构特点,系统分析机组启动过程转子和汽缸膨胀特点,寻找差胀变化规律,并结合贵溪发电厂4号机组启动差胀异常案例,进行分析、探讨,提出防范措施及注意事项,指导运行人员在实际工作中操作和运用。
短句来源
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  the differential expansion
1) during the activation cycle, as a result of the differential expansion between the microdomains of the α-and β-hydride phases.
      


A two-dimensional calculation model of the axial thermal expansion for large steam turbine rotor is proposed. The temperature fields of the rotor in transient codition are calculated using GALERKIN finit element method in order to estimate the axial thermal expamsion. This paper also explores The on-line monitoring method of the differential expansion between rotor and cylinder in large steam turbine units.

提出一种计算汽轮机转子轴向热膨胀的二维数学模型,利用GALERKIN有限元法计算转子瞬态温度场之后,再计算出转子轴向热膨胀。文中对大型汽轮机组相对胀差的在线监测方法进行了探索

The reliability problem about turbine differential expansion monitoring system, transducer fault diagonostics etc, have been analyzed and solved by the reliability method using several kinds of hardware and software. With application of the reliability method discussed in this paper, the differential expansion monitoring system can work reliably and stably.

针对火力发电厂汽轮机胀差检测的可靠性问题进行了讨论,提出并分析了抗共模干扰、判别传感器故障、传感器过电流保护以及双重数字滤波等几种有效的硬件和软件可靠性措施.经实际应用表明采用上述措施后可有效地保证监视系统稳定可靠工作.

猅his paper analyzes the existing measuring method of thermal expansion coefficient and points out its disadvantage for high accuracy measurement. This paper also emphasizes the high-accuracy thermal expansion coefficient measuring instrument designed by the authors. At last, the datum of the differential expansion coefficient of some common-used material measured by this instrument is given.

本文对现有的热膨胀系数测量方法进行分析,指出其对于高精度测量的局限性。本文还着重分析了我们自己设计的一套高精度的热膨胀系数测量仪,并通过该仪器测出了一些常用材料的微分膨胀系数。

 
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