密封流体

基于CFD的涡轮泵转子密封流体激振研究进展

Progress of investigation on turbopump annular seal fluid-induced vibration based on CFD

然后选择计算模型，确定边界条件，利用有限体积法的CFD-Fluent软件，计算该密封流体激振力和泄漏量；

And following , decides model for calculation and boundary conditions , calculates the forces on shaft and mass flow rate through the seal with CFD-Fluent which bases on finite-volume .

直线槽气体端面密封流体膜厚度的测量

Measurement of the Film Thickness of the Oblique Line Groove Gas Face Seal

磁流体动密封流体摩擦功耗的确定

Study on Frictional Power Loss in Ferrofluids Sealing

迷宫密封流体激振消振措施的研究

Studies on the excitation vibration and vibration-eliminating measures of the fluid flow in labyrinth seals

此外，转子在试验最高转速之前出现的小峰值振动是由密封流体激励等作用引起的。

The small peak vibration before the highest rotating speed is caused by the effects of liquid seal .

证明了带旋流修正k-ε湍流模型适用于密封流体激振的研究。

It as approved that the realizable k - ε turbulence model can be used to the study of seal Fluid-induced vibration .

密封流体激振减振技术的关键是降低密封腔中流体的平均周向速度，提高转子的固有频率。

The key technique of vibration elimination is to decrease the fluid average angular velocity and to increase the natural frequency of the rotor .

由连续性方程和动量方程出发，推导了适用于机械密封流体动压润滑的雷诺方程，并分析了各项对动压效应产生的意义。

Reynolds equations applied to sealed fluid hydrodynamic lubrication are derived from the continuity equation and momentum equation , and significant effect of every item to dynamic pressure was analyzed .

当密封流体高速通过静压靴间隙时，作用于静压靴工作面上的压力并不大，因此，保证了工作状态下静压靴的小变形优点。

When compressed air passes through the clearance between hydrostatic pad and coating rotor with high speed , the pressure acts on the working surface of hydrostatic pad was much smaller than inlet air pressure , and this assured that hydrostatic pad has the merit of small displacement .

采用数值求解粘性Navier-Stokes方程，研究考虑轴旋转效应的汽轮机高低齿迷宫式隔板密封内流体流动特性及其影响因素。

The flow within stepped diaphragm labyrinth seals of steam turbines and their influencing factors , taking into consideration the shaft 's rotation , is being studied by numerically solving the viscous Navier-Stokes equations .

深槽端面机械密封热流体动压特性的近似计算

Approximate computation of thermohydrodynamic performance about mechanical face seal with deep grooves

转子密封系统流体激振及其减振技术研究简评

Review on Aerodynamic Excitation and Its Elimination Method in the Rotor seal System

机械密封是流体机械旋转轴密封的主要类型，使用量大面广。

Mechanic seals are widely used in fluid machines for their rotary shafts .

新型旋转轴唇形密封圈流体动力结构返油能力的研究

Study on Bump Back Capability of Hydrodynamic Structure of New Rotary Shaft Lip Seal

机械密封端面流体膜压膜厚的测量

The measurements of pressure distribution and thickness of fluid film for mechanical face seal

转轴密封磁流体的研制

Preparation of magnetic fluids used for shaft seals

螺旋密封在流体机械中的应用

Application of Spiral Seal in Fluid Machinery

机械密封是流体机械和动力机械中不可缺少的零部件。

Mechanical seal is one of the essential parts of fluid machinery and dynamic mechanical .

机械密封是流体机械设备中的关键部件。

Mechanical seal is an important key part on the area of fluid flow equipment .

高速旋转的汽轮机隔板密封内流体流动的模拟

Simulation of Flow Within Stepped Labyrinth Seals of Diaphragm in Steam Turbine Under High Rotating Speed Conditions

对各种密封的流体动压效应，以及机械密封机理的研究成果进行了分析。

Analyses are performed on the research achievements of fluidic dynamic pressure effect of various seals and the mechanism of mechanical seals .

本文回顾了转子密封系统流体激振研究的历史和现状，重点讨论了密封动力特性系数计算、阻尼密封的研究和应用。

This paper reviews the history and present situation of the seal aerodynamic excitation research , and puts emphasis on the discussion of the calculation of the seal dynamic characteristic coefficients , the research and application of damper seals .

SiC陶瓷密封环端面流体动压槽的激光加工

Study on Laser Processing Technique of Sic Ceramic Ring Seal End Surface Fluid Dynamic Grooves

机械密封端面间流体膜的刚度及阻尼系数

The Stiffness and Damping Between the Face of Face Seal

本实用新型给出的是一种泵用机械密封，属流体机械领域。

The utility model provides a mechanical seal for pump belonging to the field of the fluid machinery .

在旋转机械中，普遍采用迷宫密封来阻止流体泄漏，当密封内转子因挠曲、不同心或旋转产生涡动运动时，会产生一个作用于转子上的合力&密封力。

In rotating machinery , labyrinth seals are widely used to prevent fluid leakage . Due to deflection , misalignment or rotation of the whirl motion , it will produce a kind of force acting on the rotor-sealing force .

从密封腔中流体的旋涡的发展、能量的耗散等角度分析了影响蜂窝密封的各种主要因素及泄漏量的变化规律。

It has analysed the impact of major factors on the honeycomb seale and variation of leakage through the angle of the meso perspective about the fluid in the sealed chamber & the development of vortex and energy dissipation . 4 .

端面开有螺旋浅槽的机械密封，利用流体动压效应，使两密封端面被&流体膜分开，形成了非接触，极大地改善了密封端面的润滑状况，延长了密封的寿命。

The spiral groove mechanical seal in whose one of two faces is grooved some hollow spiral grooves makes the two faces non-contact by a fluid film resulted from the hydrodynamic effect of the spiral grooves , which greatly improve the lubrication condition and extend the seal life .

迷宫密封中可压流体流场的数值模拟

Numerical Simulation of Imcompressible Flow in Labyrinth Seals