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A detailed unsteady numerical simulation has been carried out to investigate the influence of the rotor tip clearance on the performance of a 1+1/2 counter-rotating turbine vaneless counter-rotating turbine

本文对1+1／2对转涡轮+中动叶顶部间隙大小对涡轮性能的影响进行了详细的数值模拟。

It is assembled with the gas turbine modular, some factors which affect the performance of speed regulation of gas turbine was analyzed, this will provide reference and basis for the connection of the physical parts and modul...

在EASY5仿真平台上将燃气轮机各模块和速度调节模块组装，对影响燃气轮机速度调节过程的各个因素进行了仿真分析，仿真结果和实际过程有较好的一致性，从而为物理部件与模型模块的连接提供参考和依据

It uses middle extracted steam from steam turbine to heat the feetwater of boiler to the saturate temperature under working pressure of deaerator, so as to remove dissolved oxygen and other gases. To prevent or slow boiler and steam turbine as well as pipeline from corroding, and extend them service life, to ensure the operation of the power plant under safety economic condition. The high-pressure deaeator of 235t/h is a kind of mixture-type heater, which shall match with 55 MW units, whose deaerated head adopts a kind of new-style stuffing way with rotation film.

它是利用汽轮机的中间抽汽将锅炉给水加热到除氧器工作压力下的饱和温度，以达到除去给水中的溶解氧和其它气体，防止或减缓锅炉、汽机及其管道的腐蚀，延长其使用寿命，确保电厂的安全经济运行。235t/h高压除氧器是配55MW机组的混合式加热器。

It is proved that, while tested on short duration testing rig, the turbine power, rotation rate and flow rate require special testing method, and that, for testing the overall turbine performance, the short duration testing rig equals to, and even outruns continuous testing rig in accuracy. All the parameters need to be tested synchronically.

指出： 短周期涡轮试验在功率、转速、流量等参数的测量方法上有其特殊性；在总的涡轮性能测试指标上短周期涡轮试验完全可以达到，甚至超过连续式涡轮试验的精度；在短周期涡轮试验中，需特别注意各测量参数的同步性。

In this thesis the development of Noncontact Monitoring Technologies on steam turbine blade are compared and analyzed by the numbers, the theoretical measuring formula of bending vibrant blade is ratiocinated, and the Principle of Modal Analyzing on steam turbine blades are also summarized.

中文摘要：本文系统地比较分析了汽轮机叶片故障监测技术的发展与现状，并对汽轮机叶片弯曲振动的理论测量公式做了简要推导，就模态综合法在叶片振动分析中的应用进行了阐述。

This paper research rimed turbine processing technology and the development of the domestic situation base on a vast amount of information in the literature, and then, research the basic principles and the processing characteristics and the processing technology of the EDMFor given the data of several-section of a blade, the wheel and the ring, this paper use UGNX to describe the precise geometric modeling of the rimed turbine.

本文针对给定叶片若干截面型值点数据、叶冠数据和轮毂数据的情况，利用UG NX对带冠扭叶片整体涡轮叶盘进行了精确的几何造型设计研究。

The wind turbine's detractors fall into roughly two categories. To some objectors, the turbine is the devil's own trident — a whirling, whirring one that thwacks birds, chews bats and sets whales' teeth on edge.

反对风力发电者约略分为两派：有些反对派认为，风力发电机就是魔鬼的三叉戟，转个不停、咻咻作响，打死了鸟儿、搅碎了蝙蝠，还使鲸鱼心神不宁。

The running tests of the alloy coatings on the blade of hydraulic turbine produced using oxy - acetylene spray welding procedure manifested that the average service life of many different hydraulic turbine obtained a lot improvement after spray welding.

应用氧乙炔喷焊工艺在水轮机叶片上制备合金涂层，经过数台机组多年的实际运行，表明该材料抗磨蚀性能优异，喷焊后的水轮机叶片的平均使用寿命得到大幅度提高。

Numerical simulations on tip clearance flow in Aachen 1-1/2 axial-flow turbine stages are performed. The formation and development of tip clearance flow and tip vortex and the influences on turbine performances are investigated.

以Aachen一级半轴流透平为研究对象，采用数值模拟手段对不同动叶顶部间隙情况下的间隙流进行了分析，研究了间隙流和间隙涡的形成、发展形式及其时透平性能的影响。

According to the practical design the refuse power station should adopt the turbine-generator unit with a steam input temperature of 425℃and pressure between 4.5～5 MPa;while for major auxiliaries,deaerator,feedwater tank,feedwater pump,turbine bypass,condenser,condenser air extractor are all different from the small thermal power units.

已建成和计划建设的垃圾电站，焚烧炉及其烟气处理设备主要采用进口设备，汽轮发电机组及其辅机

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。