导叶

This paper describes the test results of the effects of the angle and clearance of fixed guide blade on the performances of mixed flow pump.

对混流泵固定导叶安放角及叶轮轮缘与泵体前盖间隙变化对泵性能影响的试验结果作了介绍。

Under different structural parameters of exit tube,including the inner diameter and the structure shape,the separation efficiency and pressure drop of the guide vane cyclone tube were measured by comparative experiments and the flow field in the guide vane cyclone tube was measured by an intelligent five-hole pilot tube.

通过对比实验测定了不同排气结构下导叶式旋风管的分离效率及压降，同时用智能型五孔球探针测试仪测定了不同排气结构的旋风管内流场分布，结合性能实验与流场测量的结果，研究了排气芯管内径及其结构型式对分离性能的影响，为旋风管结构优化和开发及其分离机理的研究提供了一定的实验基础。

Power Station where the main products are: the former pool water level monitor, oil mixing with water signal devices, oil mixing with water monitor, two two-FirstCall / 2 three / two four-way double-acting self-sustaining valve, speed monitoring devices, bearings oil level signal devices, flow, head efficiency monitoring device, the displacement angle of transmission controllers, intelligent two-way transfer of water supply valves, intelligent pressure transmission controllers, automatic self-cleaning water filters, small-caliber recoil-type filter, guided Leaf position switch, automatic qi device, float liquid level controller, temperature indicator, water level monitor, solenoid valve, electric butterfly valve, magnetic flap level gauge, linear displacement transducer, temperature data logging devices, shear sell-off signal devices, vibration, degree of monitoring devices placed, programmable speed monitoring devices, gate opening apparatus such as hundreds of professional instrumentation and automatic control device!........

其中电站主要产品有：前池水位监测仪、油混水信号器、油混水监测仪、二位二通/二位三通/二位四通双动自保持球阀、转速监测装置、轴承油位信号器、流量水头效率监测装置、位移角度变送控制器、智能双向供水转阀、智能压力变送控制器、全自动自清式滤水器、小口径反冲式滤水器、导叶位置开关、自动补气装置、浮球液位控制器、温度显示仪、水位监测仪、电磁阀、电动蝶阀、磁翻板液位计、直线位移变送器、温度巡检仪、剪断销信号装置、振动摆度监测装置、可编程转速监测装置、闸门开度仪等上百种专业仪表与自动控制装置！。。。。。。。。

According to the results of analysis, the shape of the spiral case and stay vanes were improved to reduce the hydraulic losses.

根据解析结果，对涡壳和固定导叶进行了改进以减少水力损失。

The efficiency of the stage with four different stators is presented.

研究表明本文采用的弯导叶方案没有提高级效率。

The flow conditions in the outlet section of the suction box and in the entrance section of discharge passage are substantially different from those assumed in numerical computation, resulting in notable influence on hydraulic losses and pumping system performance.

研究发现，水泵叶轮旋转和导叶出口剩余环量与进、出水流道的内部流场相互作用，进水流道的出口水流条件和出水流道的进口水流条件与单独计算时的假定有本质不同，对进、出水流道的水力损失和装置性能有显著的影响。

In this paper,the principle for the orifice flow-meter to measure the hydraulic turbine wicket gate leakage was introduced.

本文介绍了用标准节流孔板流量计进行水轮机导叶漏水量测量的基本原理，结合实例介绍了计算方法并进行了误差分析。

During the big fluctuation transient condition of a hydropower station operation, in order to minimizing the water pressure and the hydraulic units' run-speed rising, optimizing the wicket gate closing law is one of the most economic way to solve the station operation security problem during the process of big fluctuation transient.

水电站运行的大波动过渡过程中，为了最大限度地减少水压上升值与转速上升值，通过导叶关闭规律来解决大波动过渡过程中水电站的运行安全问题是最经济的有效措施之一。

Multiple class partial flow pump:(1)The head coefficient value should be low in the single class partial flow pump.(2)The total area of larynx wicket gate should be 200% the single classs larynx area.

2对于多级部分流泵：(1)部分流多级泵扬程系数的取值应比单级部分流泵的取值偏低一些；(2)部分流多级泵导叶总的喉部面积应是单级部分流泵喉部面积的两倍。

From this formula we can explain the tendency that the hydrovibration frequency increased with decreasing wicket gate opening of Francis turbines.

此式可以解释水力振动频率随混流式水轮机导叶开度减小而增高的趋势，并用两个压力梯度方程初步阐述了压力脉动振幅随工况而变化的现象。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。