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大型汽轮机     
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  large steam turbine
     Study on the Application of Innovation Technology for the Condenser of Large Steam Turbine
     大型汽轮机凝汽器改造应用技术研究
短句来源
     Last Stage Blades Replacing Technology for Large Steam Turbine
     大型汽轮机末级叶片更换技术
短句来源
     Low Cycle Fatigue Safe Life Design and Assesment of Large Steam Turbine Components
     大型汽轮机部件低周疲劳安全寿命的设计和评定
短句来源
     X-ray Inspection of the Lashing Joint Weld on Large Steam Turbine Blades
     大型汽轮机叶片拉金接头焊缝的X射线探伤
短句来源
     Analysis to Large Steam Turbine Exhaust Shell Water Spray System
     大型汽轮机排汽缸喷水系统分析
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  large turbine
     APPLICATION OF QUALITY SYSTEM MODE OF ISO 9001 TO LARGE TURBINE MANUFACTURING
     ISO9001质量保证模式在大型汽轮机制造中的应用
短句来源
     The Ring Core Method for Determining Residual Stresses in Large Turbine and Generator Rotor Forgings and its Application Examples at Abroad
     大型汽轮机、发电机转子残余应力测量新方法——环芯法及国外应用实例
短句来源
     Test Study for Ultrasonic Examination of Large Turbine Solid Rotor Forging
     大型汽轮机实心转子超声波检测研究
短句来源
     Analysis and Treatment for the Crack on Bearing Collar of Low Pressure Rotor of Large Turbine
     大型汽轮机低压转子轴颈裂纹生成分析及处理
短句来源
     Research on Service Life of Large Turbine Rotors
     大型汽轮机转子寿命问题研究
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  large steam turbines
     The 20Cr12Ni2WMoV Steel for the Last Stage Blade of Large Steam Turbines
     20Cr12Ni2WMoV大型汽轮机末级叶片用钢
短句来源
     Comparative Study on High Temperature Properties of Cr-Mo-V and Cr-Mo Castings for Large Steam Turbines
     大型汽轮机用Cr-Mo-V与Cr-Mo铸钢高温性能的比较研究
短句来源
     Calculation and Analysis of Last Stage Transonic Three Dimes; sional Flow Field for Large Steam Turbines
     大型汽轮机末级全三元跨音速流场的计算与分析
短句来源
     Comprehensive State Evaluation of Large Steam Turbines Based on Relative Inferiority Degree Models
     基于相对劣化度模型的大型汽轮机状态综合评价
短句来源
     Motor Driven Main Lubricating Oil Pump System of Large Steam Turbines
     大型汽轮机电动主油泵润滑油系统
短句来源
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  large capacity steam turbine
     Study on The Life Design Technology for Valve Housings of Large Capacity Steam Turbine
     大型汽轮机阀壳寿命设计技术的研究
短句来源
     The dimension of the against water erosion zone of 40″ and 851 mm last stage blades for large capacity steam turbine is 270× 25 mm.
     大型汽轮机40″与851mm末级叶片进汽边防水蚀部位淬火带尺寸为270×25mm。
短句来源
     Erosion Damage on the Last Stage Blades of Large Capacity Steam Turbine in China Recently
     近年我国大型汽轮机末级长叶片的冲蚀损伤
短句来源

 

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      large steam turbine
    The photoelastic method was used to model large steam turbine tenon-shroud attachments under bending loads.
          
    A major improvement for both medium and large steam turbine controls was a reduction in component count with a resultant increase in reliability.
          
    Describe the function of large steam turbine components and systems.
          
      large turbine
    A distributed parameter model is presented for the calculation of torsional vibrations of large turbine-generator shafts, on the basis of electrical analogy.
          
    Experience in vibration tests and balancing rotors of large turbine-generator units
          
    Elimination of imbalance of the rotor of a large turbine-generator unit
          
    Measuring attachments for monitoring large turbine blades
          
    1.Experience in the use of the considered measuring attachments for the monitoring of elements of large turbine blades under production conditions testifies to the high reliability and operational capability of the developed monitoring means.
          
    更多          
      large steam turbines
    As the only manufacturer of large steam turbines in India, Bharat Heavy Electricals Ltd.
          
    Generalization of the results from investigations on perfecting the design of journal bearings for large steam turbines for nucl
          
    Condensers of large steam turbines for thermal and nuclear power stations
          
    Designs and technical characteristics of the condensers of large steam turbines for thermal and nuclear power stations operating in Russia and abroad are described.
          
    The state of art and ongoing research concerning the flow of wet steam in large steam turbines is reviewed, particularly from the viewpoint of the behavior of the liquid film deposited upon the stationary blading.
          
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      其他


    In recent years the importation of foreign technology and equipment has given rise to a great deal of public concern as to which will serve China better, just pure imitation or absorption of the cream of western superior technology, by disgestion is an effort to serve us best to our purpose. In this paper the author presents his views on technical problems of this nature mainly is regard to steels for use is the manufacture of modern steam turbines and boilers.

    技术引进后,是完全照搬照抄,还是消化吸收,洋为中用,是大家共同关心的问题。本文着重论述大型汽轮机锅炉钢材的技术问题。

    In this paper, the method of influence coefficient modified by successiveapproximation is proposed on the basis of influence coefficient method, whichis based on the least square method, and now commonly used in the multiple-plane balancing at different speeds. In stead of Counterweight evaluationsafter determining the influence coefficicient in uniqueplane balancing, themethod suggested determines the influence coefficent by applying the testingweights in multiple planes. In balancing process, the influence...

    In this paper, the method of influence coefficient modified by successiveapproximation is proposed on the basis of influence coefficient method, whichis based on the least square method, and now commonly used in the multiple-plane balancing at different speeds. In stead of Counterweight evaluationsafter determining the influence coefficicient in uniqueplane balancing, themethod suggested determines the influence coefficent by applying the testingweights in multiple planes. In balancing process, the influence coefficient ismodified according to the variatien in vibration parameters measured. It isproved through experiments that the satisfactory results would be achievedafter no more than two times of influece coefficient modification and counterweightevaluation, thereby raising the balancing effect and reducing the starringtimes in balancing process, and consequently raisng substantially theecconomic benefit for the balancing of rotors of heavy steam turbines, etc.

    本文提出的逐步迫近修正影响系数法是在目前普遍采用的将最小二乘法用于多平面,多转速的影响系数法的基础上提出来的。它改变了单面加重一次确定影响系数进行配重计算存在的配重误差较大的缺点,而是采用成组加重计算影响系数的方法,在平衡过程中,根据不断改变测量得振动参数的结果来修正影响系数。此法在实验台上试验结果证明,只要一、二次修正影响系数进行配重加重计算,就可得到令人满意的结果,从而提高了平衡效果,减少了平衡中的开车次数,这对大型汽轮机等转子的平衡将大大提高平衡经济效益。

    Mechanical properties of the 20Crl2Ni2WMoV steel used for last stage blade of 300MW steam turbines are described. Also discussed in the paper are the structure transformation property and the effect of carbon content on the toughness, fatigue strength and rupture ductility JR of the material.

    本文论述30万千瓦大型汽轮机1米末级长叶片用钢20Cr12Ni2WMoV的常规机械性能、相变特征,以及碳含量对韧性、疲劳强度和断裂韧度J_R的影响。

     
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