蜗壳焊缝,Volute weld
1)Volute weld蜗壳焊缝
英文短句/例句
1.Application of TOFD technology in detection of welded spiral caseTOFD技术在瀑布沟电站蜗壳焊缝质量检测中的应用
2.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
3.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
4.Application of the electrogas welding for the blast furnace jacket气电立焊在高炉炉壳立缝焊接的应用
5.Numerical Analysis and Optimization Research of Welding Volutes for Centrifugal Compressors;离心压缩机焊接式蜗壳流动分析与优化研究
6.Analysis of Crack and Optimum Design for Scroll Case in Hydropower Station;水电站蜗壳结构的裂缝分析与优化设计
7.Application of Electro Slag Welding with Consumable Nozzle in the Vertical Welding of Blast Furnace Shell in Laigang熔嘴电渣焊在莱钢高炉炉壳立缝焊接中的应用
8.Experimental study circumferential weld residual stress of submarine pressure hull潜艇耐压壳环焊缝焊接残余应力模拟实验研究
9.Girth Welding of Large Reel Structure Pieces of Shell and Tube Plate大型卷筒结构筒壳与幅板环焊缝的焊接
10.Quasi-Unsteady Numerical Simulation of the Impeller-Volute Coupling Characteristics in Stamping-Welding Centrifugal Pump;冲压焊接离心泵叶轮及蜗壳耦合特性准非定常数值模拟
11.Reason Analysis and Treatment of Weld Crack in Water Drain Valve Base of Spiral Casing in Longtan Hydropower Station龙滩电站蜗壳排水阀阀座焊接裂纹产生原因及处理
12.Analysis and treatment of welding crack of spiral case drain valve base龙滩电站蜗壳排水阀阀座焊接裂纹原因分析及对策
13.Research on Penetration Adaptive Control Technology for Lap Weld of Missile Shell导弹壳体搭接焊缝的熔深适应控制技术研究
14.Welding the welds which are stagger first, then is the straight ang long weld.先焊错开的端焊缝，后焊直通长焊缝。
15.Research on High-speed Heavy Wheel Grinding in Nuclear Power High-pressure Vessel Shell Weld;核电高压容器壳体焊缝高速强力砂轮磨削技术研究
16.horizontal single-stage double-suction volute pump卧式单级双吸蜗壳泵
17.The shell of a snail is its skeleton.蜗牛的壳是它的骨骼。
18.The snail retreated into its shell.蜗牛缩进壳里去了.
相关短句/例句
spiral case welding detection蜗壳焊缝检测
3)cracks in roof of worm wheel蜗壳顶板裂缝
4)scroll case welding and detecting flaw蜗壳焊接及探伤
5)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 thespiral 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 turbinespiral casing for Three Gorge projects;三峡机组蜗壳内紊流的三维数值分析
6)spiral case蜗壳
1.NC cutting of turbinespiral 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 steelspiral 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 giantspiral 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
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
