1)spiral case蜗壳
1.NC cutting of turbine spiral case by space spread calculation;利用空间展开技术实现水轮机蜗壳的数控切割
2.FEM analysis on steel spiral case with cushion layer of turbine;水轮机垫层蜗壳有限元分析
3.Study of dynamic characteristics of a giant spiral case with different embedment manners;不同埋设方式下巨型水轮机蜗壳结构动力特性研究
英文短句/例句
1.horizontal single-stage double-suction volute pump卧式单级双吸蜗壳泵
2.Influence of Temperature on the Gap between Concrete and Steel Liner in Spiral Casing Structure;温度对充水保压蜗壳结构蜗壳与外围混凝土间隙的影响
3.The Influence of Turbine Volute Section Changing Curve for Inner Flow and Outlet Parameters蜗壳截面变化规律对蜗壳内流动及其出口参数的影响
4.Technological guide for assemble and welding of metal sporal case of turbine水轮机金属蜗壳安装焊接工艺导则
5.3-D Turbulent Flow Calculation within a Centrifugal Pump Volute;离心泵蜗壳内部三维湍流场数值模拟
6.Computer and Inner Flow Numerical Simulatiom of Double-volute Casing;双蜗壳的参数计算绘形和内流场计算
7.3-Dimensional Viscous Fluid Flow in a Volute of Centrifugal Oil Pump;离心油泵蜗壳内部三维粘性流体流动
8.Study on Structural Characteristics of the Spiral Case of Hydropower Station Standing with High-head Water Pressure;高水头水电站蜗壳结构受力特性研究
9.Numerical Simulation and Engineer Testing of 1Cr18Ni9Ti Volute Forming1Cr18Ni9Ti蜗壳件成形数值模拟及工艺试验
10.Nonlinear Analysis on Directly-embedded Spiral Case of Huge Hydropower Station巨型电站直理式蜗壳结构非线性分析
11.The Application of SolidWorks on the Unfolding of the Metal Spiral Case for TurbineSolidWorks在水轮机金属蜗壳展开中的应用
12.Quantitative Prediction of Sound Radiation by Casing Vibration of Centrifugal Fan离心风机蜗壳振动声辐射的定量预测
13.Parametric Design of Centrifugal Fan Volute Based on CATIA基于CATIA的离心通风机蜗壳参数化设计
14.Numerical Simulation Analysis of Flow Field in the Double Volute Centrifugal Pump双蜗壳离心泵内部流场数值计算分析
15.Simulation Analysis of 3D Flow in Volute of a Turbocharger涡轮增压器蜗壳内三维流场模拟分析
16.Erection Technique of King Sized Metal Spiral Case大型水轮发电机组金属蜗壳安装技术
17.Treatment of Crack in Concrete Roof of Worm Wheel of No.1 Set,Suzhi Hydropower Station苏只水电站1号机蜗壳顶板裂缝处理
18.Stress of armor plate of the spiral case of large-scale turbine units大型水轮机组蜗壳钢板应力监测分析
相关短句/例句
Volute[英][v?'lju:t][美][v?'lut]蜗壳
1.Effects of Structure of the Volute to Separation Efficiency of the Preheater Cyclone;蜗壳结构因素对预热器旋风筒分离效率的影响
2.CFD simulation of sand-water two-phase inner flow field of volute;蜗壳内部含沙水两相流动的CFD模拟分析
3.Numerical Simulation of Unsteady Flow in Centrifugal Pump Volute;离心泵蜗壳内部非定常流动的数值模拟
3)spiral casing蜗壳
1.The Re-ionitriding of the Spiral Casing Tandem dies;蜗壳拉深模的稀土离子氮化
2.3D-FEM analysis on the spiral casing structure of Xilongchi pumped-storage hydropower station;西龙池抽水蓄能电站蜗壳结构三维有限元计算分析
3.Numerical analysis of three dimensional turbulent flow through a turbine spiral casing for Three Gorge projects;三峡机组蜗壳内紊流的三维数值分析
4)scroll case蜗壳
1.Application of polypropylene fibre in concrete scroll case of Nierji hydropower station;聚丙烯纤维材料在尼尔基水电站混凝土蜗壳中的应用
2.Optimal design of a scroll case with natural frequency constraints;具有频率约束条件的蜗壳优化设计
3.Research on stressed characteristic of scroll case in high-head hydropower station;高水头水电站蜗壳结构受力特性研究
5)scroll[英][skr??l][美][skrol]蜗壳
1.Investigation of the effect of section axisymmetry in a radial inflow turbine scroll;向心透平蜗壳轴向对称性影响的数值模拟研究
2.A Numerical Study of 3-D Flow In A Scroll;蜗壳内三维流动的数值研究
3.This paper presents one experimental and numerical investigation of the internal flow inside one radial inflow turbine, including scroll, vane and impeller.蜗壳内采用单斜丝热线在同一位置旋转,在三个不同的方位测量后拟合计算得到气流的三维速度。
6)large-sized spiral case大型蜗壳
1.In order to verify both strength and safety allowance of the WDB620 high tensile steel and to check the reliability of welding and manufacturing technology of an analogue large-sized spiral case test and research on its weldability and manufactu.蜗壳钢材选用国产600 MPa级别高强钢,为了全面综合地考核该级别钢种的材料强度和安全裕度,检验模拟大型蜗壳焊接制造工艺的可靠性。
延伸阅读
蜗壳蜗壳spiral case 头较低的小型水轮机可用铸铁蜗壳，高水头水轮机采用钢板焊接或铸钢铸造，绝大多数焊接蜗壳考虑单独承受内水压力，有的考虑钢板与混凝土联合受力。钢板焊接蜗壳在工厂成形焊成整体或根据运输条件焊成数段运至工地焊接。蜗壳的最低点设排水管，适当的位置装有进人门。Woke蜗壳(sPiral case)蜗状的有压引水室。它使水轮机进水形成一定环量并沿整个圆周均匀地输送给导水机构的部件。蜗壳回绕在导水机构四周，从进口开始断面逐渐缩小，形如蜗牛壳。断面变化规律一般采用等速度矩法(vu;一eonst)或等速度法(v。=eonst)，也有两者相结合的。蜗壳分混凝土蜗壳和金属蜗壳两种。 混凝土蜗壳用于水头小于4om电站的水轮机上，一般为“T”形断面，见图1。“T”形断面的高、宽比b/a一般在1.5~2.0之间，包角在1350~2700之间，常用18扩，必要时通过模型试验确定。蜗壳内侧为座环，在蜗壳的适当位置设进人门，便于检查维修，在最低点设排水阀，以便检修时排空水。┌─┐│{ │└─┘ 图1包角沪一18扩，“T”形断面混凝土蜗壳 (a)蜗壳剖面图;(b)蜗壳平面图 金属蜗壳应用十分广泛，其断面为圆形，见图2。由于结构上的原因，接近尾部的几节采用椭圆形断面。包角一般为3450一3600，蜗壳内侧为座环，蜗壳和座环用蝶形边连接，其锥角为55。。近来采用无蝶形边的箱形结构，增加刚度，改善受力条件，便于组焊。水图2金属焊接蜗壳(a)立体图;(b)剖面图
