1)draft tube尾水管
1.Pressure fluctuations in a Francis turbine draft tube calculated by cavitating flow simulation;基于空化流动计算的混流式水轮机尾水管的压力脉动
2.Correlation analysis of the internal vortex flow of hydro turbine with the pressure fluctuation inside draft tube;水轮机内部涡流与尾水管压力脉动相关性分析
3.3D modeling of draft tube of hydropower station base on 2D CAD drawing;基于二维CAD图形的水电站尾水管三维重构
英文短句/例句
1.Relations between the Vortex and Pressure Fluctuation in Draft Tube of the Hydraulic Turbine;水轮机尾水管涡带与压力脉动的关系
2.The Simulation of 3D Unsteady Periodic Turbulent Flow in Draft Tube and the Applications of CFD;尾水管非定常周期性紊流及CFD的应用
3.Numerical simulation of three-dimensional unsteady vortex rope turbulent flow occurred to the draft tube of a Francis turbine三维非定常湍流尾水管涡带数值模拟
4.Analysis of Draft Tube Vibration Induced by Tailrace Eddy based on A Fluid-Structure Coupling Numerical Method基于流固耦合数值方法的尾水涡带诱发尾水管振动分析
5.Numerical Investigation of Unsteady Vortex Flow Fields in a Draft Tube;混流式水轮机尾水管涡带非定常流动数值模拟
6.Numerical Simulation on Three-Dimensional Flow Field in Draft Tube of Shaft-Extension Type Tubular Turbine.;轴伸贯流式水轮机尾水管三维流场的数值模拟
7.Experimental Study of Flow in Hydraulic Draft Tube Based on PIV Technology;基于PIV技术的水轮机尾水管内流动的试验研究
8.Three-Dimensional Flow Emulation Calculation Through a Hydraulic Turbine Draft Tube of Danjiangkou Expanding Units;丹江口扩机尾水管三维流场仿真计算研究
9.Relations Between Flow Field and Pressure Fluctuation in Draft Tube of Francis Turbine混流式水轮机尾水管进口流场与水压力脉动的关系
10.Research of Flow Field in Draft Tube of Francis Turbine on the Basis of the Whole Flow Passage by Numerical Simulation;基于全流道模拟的混流式水轮机尾水管内部流动研究
11.Model Test and Investigation on Draft Tube Mid-pier Modification of the Qingtong-Gorge Hydropower Station;青铜峡水电站尾水管中墩改造结构模型试验与计算研究
12.Analysis of pressure fluctuation in draft tube based on simulation of unsteady flow in whole passage of axial flow turbine基于全流道非定常流动计算的轴流式水轮机尾水管压力脉动分析
13.Effect of pressure fluctuation in hydraulic turbine draft tube on low-frequency oscillation of electric power system水轮机尾水管压力脉动对电力系统低频振荡的影响
14.Structural Design about Stern Structure of Deep and Shallow Water Pipelay Crane Vessel深水/浅水铺管起重船尾部结构设计
15.Research on Tail-heating Surface Corrosion of Corner Tube Hot Water Boiler角管式热水锅炉尾部受热面严重腐蚀探讨
16.Techniques of trajectory control and liner running-in of the shallow multi-target horizontal well多靶浅层水平井轨迹控制及尾管柱下入技术
17.Study of Initial Crustal Stress Field in the Tail Water Bifurcated Pipe Area of Liyang Pumped-storage Hydropower Plant溧阳抽水蓄能电站尾水岔管区域初始地应力场研究
18.Renovation of tail water conical tube of the generator No.2 of Fengtan hydropower station凤滩水电厂2号机组尾水锥管改造施工工艺及应用
相关短句/例句
fork tube尾水岔管
1.Experimental research on current resistant characteristics of tail water fork tube in the pumped-storage hydroelectric plant;抽水蓄能电站尾水岔管水流运动及阻力特性试验研究
3)draft tube elbow尾水肘管
1.The draft tube of hydraulic turbine for Chanwusu powerstaion is made up of draft tube elbow and draft tube cone,its installation will be finished by step.察汗乌苏电站水轮机的尾水管尾水肘管和尾水锥管,其施工工程也是分步进行的。
2.In the course of manufacturing the turbine draft tube elbows for both Manwan phase II hydropower plant and Xiaowan hydropower plant the installation of stiffener rings was once carried out directly by elbow orifice unuiformly marking out the reference line.在漫湾二期和小湾水电站水轮埋件尾水肘管制造过程中,加劲环安装开始采用参考线直接以管口均匀划线的方法进行,这种安装方法无法保证安装准确度,在加劲环接头处出现折弯,外观质量不美观,安装困难且进度缓慢。
4)draft-tube branch尾水支管
1.Analysis on the steel liner off-stability in the transition section of the draft-tube branch of Guangzhou Pumped-storage Power Plant and their treatment measures;广蓄电站尾水支管渐变段钢衬失稳原因分析与处理措施
5)draft tube tunnel尾水管洞
6)tail water conical tube尾水锥管
1.Renovation of tail water conical tube of the generator No.2 of Fengtan hydropower station凤滩水电厂2号机组尾水锥管改造施工工艺及应用
延伸阅读
尾水管尾水管draft tube we一shu一guon尾水管(draft tube)位于转轮后的出水管段，利用转轮出口水流的位能和部分动能，并将水流排至下游的部件.尾水管是水轮机过流通道的一部分，有直锥形和弯曲形两种。 直锥形尾水管见图1。一般整锥角a~100~140，出口流速v一1.5~3.sm/s，L/D3=3~4.管内水流均匀，阻力小，能量回收系数高，结构简单，易于制造，但挖深太大，用于小型、卧式水轮机和贯流式水轮机上。弯曲形尾水管水力性能不如直锥形，但挖深较小，广泛应用于大中型反击式水轮机。从底环平面至尾水管底板间的高度h是影响尾水管性能的关键尺寸，一般通过模型试验确定。尾水管由进口锥管A、肘管B及出口扩散管C三部分组成，见图2。进口锥管为简单的直圆锥形，扩散整锥角一般为140~200，出口扩散管为矩形或扁圆形断面扩散管。肘管为连接进口锥管和出口扩散管的过渡段，当出口扩散管尾水管的宽度B。大于10一12m，因结构需要可在管内加支墩。由于蜗壳的偏心，尾水管中心线在平面上偏转一个角度，以减少机组段宽度。另一种弯曲形尾水管只用于小型卧轴水轮机，它由等圆断面900弯管和直圆锥形扩散管组成，结构简单，制造容易，但流态较差。┌─┐│口│├─┤ 图2弯曲形尾水管 (a)混流式水轮机夸曲形尾水管;(b)轴流式水轮机弯 曲形尾水管 尾水管一般用钢筋混凝土浇筑，进口锥管用钢板里衬保护，为防止水流对混凝土的冲刷，保护钢板一直延续到水流速度6m/s左右的地方。有时为了免去立模、拆模工作，保证外形尺寸正确，整个肘管甚至出口扩散管都用钢板里衬。大型里衬在工厂成型，分段分瓣运到工地组焊。进口锥管上设有进人孔及验水阀，最低点设排水阀。当转轮需从下部拆出时，整个钢板制造的进口锥管是可拆的。
