1、

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.

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2、

The plant structure includes lower volute, tail pipes and tail water pier wall structure.

厂房的下部结构包括蜗壳 、 尾水管和尾水墩墙等结构.

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3、

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.

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4、

In this connection, the action is similar to that previously described for volute type centrifugal compressors.

在此联系中, 这种作用类似于前面描述过的涡旋式离心压缩机.

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5、

Does liquid level ever drop below volute top?

水位是否总是位于涡流顶部?

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6、

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.

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7、

Optimum Design for Volute Casing and Base Ring of Large Hydraulic Turbines

大型水轮机蜗壳、座环结构优化设计

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8、

After increasing the impedance, the big machine volute inlet pressure, the greatest rotational speed rises, the surge tank highest swell surpass the design value, which does not favor the big machine security steady operation.

在增大阻抗后,大机的蜗壳进口压力、最大转速上升、调压井最高涌浪都超过设计值,不利于大机的安全稳定运行。

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9、

After increasing the impedance, the big machine volute inlet pressure, the greatest rotational speed rises, the surge tank highest swell surpass the design value, which does not favor the big machine security steady operation.

在增大阻抗后,大机的蜗壳进口压力、最大转速上升、调压井最高涌浪都超过设计值,不利于大机的安全稳定运行。

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10、

Under the environment of Visual C++ 6.0, the parametric 3-D modeling software PCAD-3D is developed, which includes column blade, curved blade, double channel impeller, volute and radial vaned diffuser, etc.

在Visual c++6.0编程环境下,开发了扭曲叶片、圆柱叶片、双流道叶轮、蜗壳和径向导叶等的参数化三维造型软件PCAD-3D。

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11、

Based on four kinds of elements, the contact node pairs are established and the finite element analysis of the clearance and contact among the volute casing, vaned intake ring and cement foundation is carried out with the step loading method.

本文在采用板壳元、块体元、边界元、伪单元和建立接触点对的基础上,利用分步加载法对蜗壳、座环与水泥基础间的间隙和接触问题进行了有限元分析计算。

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12、

The experiments of an oil film visualization technique are accomplished on the surfaces of impeller, inlet segment and partial meet face between inlet segment and volute casing.

对螺旋离心泵叶轮、进水节和进水节与蜗壳交界处的部分端面做了表面油膜、油点试验。

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13、

Flow field of centrifugal pump ( Pump flow passage includes suction pipe, impeller and volute casing.) was obtained by solving the Reynolds average Navier-Stokes equation.

通过求解包括进水管、叶轮、泵体等过流部件在内的水泵流道内的三维稳定雷诺平均Navier-Stokes方程,获得水泵内部的流场分布特征。

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14、

A Higher Order Sound Modal Analysis of the Volute Casing of a Centrifugal Fan with a Sound-Soft Boundary

声软边界离心风机蜗壳高阶声学模态分析

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15、

Contact among Volute Casing, Vaned Intake Ring of Large Hydraulic Turbines and the Cement Foundation

大型水轮机蜗壳座环与水泥基础间的接触问题

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16、

During the stall period, the flow structure in all volute cross sections consists of a single forced vortex at all times. The flow loss is rather great in the center of the forced vortex, which lead to the low total pressure.

在失速周期中,在所有的时刻下蜗壳流道的截面上,流动均形成了一个的旋涡,旋涡中心流动损失较大,总压较小。

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17、

DESIGN AND EXPERIMENT OF HIGH SPECIFIC SPEED VOLUTE MIXED FLOW PUMP Measurement of Hydraulic Losses in Volute Casing of a Reversible Pump-Turbine under Pumping Mode

高比转数蜗壳式混流泵的设计与研究混流可逆式水泵-水轮机泵工况蜗壳损失试验研究

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18、

Because of the distinct reducing of the swirl velocity and the instability of the forced vortex itself, the vortex at the volute discharge section breaks down easily, inducing the reverse flow at the center of volute discharge section.

在蜗壳出口直管段由于涡流速度明显减小和旋涡自身的不稳定,在小流量下容易发生破裂,导致蜗壳出口的截面中心区域通流速度均出现逆流,此逆流为压缩机失速特征的表现。

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