The hydraulic design of diversion components and guiding device which are composed by volute, stay vanes and guide vanes is very important to the performance of hydraulic turbine.
蜗壳、固定导叶和活动导叶组成的引水、导水部件的水力设计对水轮机性能有着举足轻重的作用。
Pump volute - shaped shell made many, it is also called the volute.
泵壳多做成蜗壳形，故又称蜗壳。
It is found that vane diffuser restrains the influence of the volute on the impeller.
发现了叶片扩压器对遏制蜗壳对叶轮内流场的影响有明显的作用。
And evaluation extreme value method is used to obtain the volute width at the minimum noise.
并用求极值方法得出噪声最小的蜗壳宽度。
The complex internal flow has made volute to be one of the component costing most loss.
蜗壳内部的流动现象十分复杂，是损失最大的元件之一。
Centrifugal and mixed flow pumps pressurized water chamber is a common spiral-shaped, called the volute.
离心泵和混流泵常见的压水室是螺旋形的，称为涡壳。
Using software PRO-E to build the model of the impeller, diffuser with blade, entering air elbow, volute.
用PRO - E软件对进气弯管，带分流叶片的叶轮及有叶片扩压器进行了实体建模。
Technology of step tongue volute is introduced and applied to a centrifugal fan for discharging lampblack.
介绍了阶梯蜗舌技术，并将其应用于一种排油烟的离心风机。
The embedding part includes volute socket ring, tail water taper pipe, tail water ell, pit liner and so on.
埋入部分包括蜗壳座环、尾水锥管、尾水肘管、机坑里衬等。
Mixture was separated at the volute tongue export stripping along the short tube into the separation chamber.
混合物在蜗壳出口被隔舌剥离，沿短管进入分离室。
Horizontal, single stage uncooled volute casing pumps for handling of mineral and synthetic heat transfer oils.
不需冷却的单级涡壳泵，用于处理矿物或合成热传导油。
The discharge pipe flange is bolted to the support plate to prevent piping strain transmission to the pump volute.
排水管法兰通过螺栓连接到支撑板上，以防止管道张力传递到泵蜗壳上。
The volute suction shall contain a replaceable 400 Series stainless steel wear ring to match the impeller wear ring.
蜗形吸入室应该包含一个能够与叶轮抗磨环匹配的可替换400系列不锈钢抗磨环。
Abstract: The effect of different volute openness on aerodynamic characteristic of a centrifugal fan is investigated.
摘要 ：研究不同蜗壳开度对离心风机气动性能的影响。
The distribution of velocity and solid particles and the information of axial vortex in the impeller and volute are discovered.
得出了渣浆泵叶轮与蜗壳内的速度分布、固相浓度分布以及漩涡结构等流场信息。
A calculation method of the off-design of variable cross section in pulse turbine with vaneless volute is introduced in the paper.
介绍了变截面无叶蜗壳脉冲涡轮的变工况计算方法。
The optimization design method, which considers the impeller and volute casing as a whole and the effects of viscosity, is proposed.
提出将叶轮、蜗壳作一体的并考虑粘度的油泵水力优化方法。
The results reveals that the conventional design is not suitable for designing a very low ns volute pump and a new design is presented.
结果表明，低比转数蜗壳泵不宜采用常规设计，进而提出了一种新的设计方法。
Two kinds of methods for verifying the precision of LDV when used in measuring velocity fields of the centrifugal volute are introduced.
介绍了利用激光多普勒测速仪（LDV）测量离心泵蜗壳流道内部速度场时的速度与流量两种校核方法。
The unit shall be field convertible to a portable pump by means of removal of the guide bracket from the pump volute, without modification.
这种泵设备应该能够在现场转换成轻便泵，不需要进行改型，只要通过拆卸泵涡壳上的导轨支架就可以做到。
Concrete volute chamber is a kind of spatial structure of complex shape, so calculation and analysis of concrete volute chamber is very difficult.
混凝土蜗壳是形状复杂的空间结构，对蜗壳进行计算分析是比较困难的。
The asymmetry of overall flow field caused by the interaction between impeller and volute is proved by different flow atlas of the specific section.
通过特定截面的不同流动图谱，证实了蜗壳、叶轮相互作用引起的整机流场的不对称性。
The rotary motion of a profiled impeller in combination with a shaped pump housing or volute applies centrifugal force to discharge fluids from the pump.
成型叶轮的旋转运动以及成型的泵壳或蜗壳产生离心力从泵中排出流体。
The distributions of velocity, velocity moment, pressure and other flow parameters are obtained, and the properties of inner flow inside the volute are also analyzed.
得到了离心泵蜗壳内速度、速度矩、压力等参数的分布，分析了蜗壳内部流动的特征。
Therefore a new design method with varying spiral angles of volute was proposed by means of focus on improving the uniformity of pressure field near the tongue of the volute.
因此，提出了一种通过改善蜗舌附近压力区的均匀性的、新的变螺旋角蜗壳设计方法。
The parallel chain constraint, which is imposed by the sidewall on the concrete structure of the volute layer, plays a relatively small role on the dynamic characteristics of the structure.
厂房上下游边墙围岩对蜗壳层混凝土结构的水平链杆约束对结构动力特性影响较小；
The lining is easy to form, high in production efficiency, no damage to volute, and high in wear resistance. The pump has replaceable front and back pump cover for lowering maintenance cost.
本发明较已有技术衬里简单，节省能源，生产效率高，而且不会损坏泵壳，耐磨性能好，前后泵盖可单独更换，可降低用户维修成本。
The lining is easy to form, high in production efficiency, no damage to volute, and high in wear resistance. The pump has replaceable front and back pump cover for lowering maintenance cost.
本发明较已有技术衬里简单，节省能源，生产效率高，而且不会损坏泵壳，耐磨性能好，前后泵盖可单独更换，可降低用户维修成本。
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