1) labyrinth clearance
汽封间隙
1.
Improvement of measurement and adjustment of labyrinth clearance in turbine set
汽轮机组汽封间隙的测量与调整方法改进
2) gland clearance
汽轴封间隙
3) gap regudation of steam sealing
汽封间隙调整
4) Clearance seal
间隙密封
1.
The method of clearance seal can achieve the effect of the seal between regenerator and cylinder wall while eliminating contact between them.
间隙密封的应用则可以在完成密封作用的同时消除接触磨损和因此而产生的污染。
2.
The clearance seal can achieve the effect of the seals while eliminating contact between them.
采用间隙密封,可以在完成密封作用的同时消除接触磨损和因此而产生的污染。
3.
It has been pointed out that the eccentricposition influences greatly the leakage of the clearance seal.
给出了回热式制冷机间隙密封泄漏率的数学描述,讨论了间隙泄漏率的影响因素,指出位置偏心是影响间隙泄漏率的重要因素,同时通过实验验证了间隙泄漏率的数学描述。
5) sealing clearance
密封间隙
1.
The influences of relief pipes of Francis hydraulic turbine on the flow field of the sealing clearance and its environs;
混流式水轮机减压管对密封间隙及其周围流场的影响
2.
The formula of radial sealing clearance for rotation error of orbiting scroll was founded.
根据曲柄销防自转涡旋压缩机的结构,从平面杆件机构的基本原理出发,分析了机构尺寸误差引起动涡旋自转误差模型,并建立了动涡旋自转误差对动、静涡旋密封间隙影响的计算式,通过算例对曲轴回转一周自转误差引起密封间隙的变化及对压缩机气密性、稳定性和安全性的影响进行了分析讨论。
3.
The causes of pressure fluctuation forming in the chamber & runner crown sealing clearance were analyzed.
以某电站机组为例,采用商业CFD软件对原型水轮机进行了三维全流道湍流数值模拟计算,分析了压力腔及密封间隙中压力脉动形成的原因,讨论了减压管的开、关状态对压力腔、转轮密封间隙和尾水管中流场的影响。
6) seal clearance
密封间隙
1.
Fluent was used in calculating labyrinth seal flow field and leakage flow rate, which are effected by labyrinth seal clearance, cavity depth and the structure,including straight through labyrinth seal and interlocking labyrinth seal.
应用Fluent软件计算迷宫密封间隙宽度和空腔深度以及直通式迷宫密封和错列式迷宫密封对迷宫密封流场和泄漏量的影响。
2.
The paper suggests a method of checking the radial seal clearance at hot ends of power plant boiler air preheaters, presents the preheater rotor s deformation as a function of the temperature, analyses some decisive factors that may affect the safety of the system s operation.
介绍一种电站锅炉空气预热器实现热端径向密封间隙控制的方法 ,给出预热器转子变形量随温度变化的关系 ,分析几种有关系统安全运行的重要因素 ,实践证明在较为完善的联锁保护下 ,根据转子变形量进行漏风控制是切实可行的。
补充资料:汽轮发电机组轴系
汽轮发电机组轴系
turbine-generator shaft system
q一lun fod旧n jlzu Zhouxl汽轮发电机组轴系(turbine一generator shaftsystem)用联抽器连接在同一中心线的汽轮发电机组各转子构成的回转体。机组运行中反映的横向和轴向振动、扭振、临界转速以及稳定性等问题都与汽轮发电机组轴系特性有关,而轴系特性与单个转子的特性有差异。(见轴系德定性、转子临界转速) 轴系与单个转子的主要区别在于:①轴系临界转速与单个转子临界转速有关,但单转子在轴系中因轴端受到约束,使该转子的临界转速在轴系中得到提高;②转子支承标高相对变化,对单转子是无意义的,但对轴系特别是用刚性联轴器连接的挠性转子,将使临界转速和振型均发生变化,并使相邻轴承的载荷发生转移。其结果是使平衡不佳的挠性转子上的残余不平衡量引起运行时的振动发生变化;对于载荷变轻的轴承则使失稳转速降低,对于稳定性差的轴承,容易发生油膜振荡。
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参考词条