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1)  sealing between the multi-stages
级间密封
1.
Improvement on sealing between the multi-stages of centrifugal pumps
多级离心泵级间密封的改造
2)  stage seal
级密封
1.
Condition prediction of stage seal of centrifugal compressor based on axial thrust
利用轴向力预测离心压缩机的级密封状态
3)  zonal sealing property
层间密封
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:叠层填料密封
分子式:
CAS号:

性质:又称填料函填料或螺旋盘根。主要用于填塞反应釜、搅拌器、泵等旋转轴或往复活塞杆及阀杆轴贯通处的填料函(stuffing box),以抑止旋转或往复运动的轴杆处的低压蒸汽、气体、热水、溶液及各种介质的泄漏。常以棉麻、石棉、聚四氟乙烯、碳纤维、金属箔等单独或几种材料组合,经捻合、编织或与橡胶并用制成,为条状产品。横断面有正方形、梯形、圆形等,填料条按其截面大小绕成不同直径的螺旋状制品,使用时将其切断成适当周长的环,卷于轴的四周,依次塞入填料函中,用盖锁紧,完成密封。

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