A Theoretical and Experimental Study on Characteristics of Water-Lubricated Double Spiral–Grooved Seals
A Theoretical and Experimental Study on Characteristics of Water-Lubricated Double Spiral–Grooved Seals
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DOI：
10.1080/10402004.2010.546035
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发表时间：
2011-03
影响因子：
2.1
通讯作者：
Guoyuan Zhang;Wei-gang Zhao;Xiu-Tian Yan;Xiaoyang Yuan
中科院分区：
文献类型：
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作者：
Guoyuan Zhang;Wei-gang Zhao;Xiu-Tian Yan;Xiaoyang Yuan
螺旋槽密封件是应用于液氧 (LOX) 涡轮泵的主要候选材料。提出了处理粘温关系的双螺旋槽密封的理论模型。研究了工作参数（转速、供给压力）和配置参数（螺旋槽深度）对双螺旋槽密封基本静态特性（开启力、泄漏、静摩擦扭矩、表面温度和功率损失）的影响。对平均直径为 100 mm、高速运行并使用水作为测试流体的窄螺旋槽面密封件的测量结果与理论预测进行了比较。理论和实验结果表明，随着转速和供给压力的增加，密封面温度升高，摩擦力矩增大，且随螺旋槽深度的变化略有变化。这些发现为应用于液体发动机涡轮泵的端面密封件的设计提供了重要的理论和实验见解。
The spiral-grooved seal is a prime candidate for application to liquid oxygen (LOX) turbopumps. A theoretical model of double spiral–grooved seals dealing with the viscosity–temperature relation is presented. The effect of operating parameters (rotational speed, supply pressure) and configurative parameters (depth of spiral groove) on the basic static characteristics (opening force, leakage, static friction torque, face temperature, and power loss) of double spiral–grooved seals are examined. Comparisons are presented between measurements and theoretical predications for a narrow spiral-grooved face seal with an average diameter of 100 mm, operating at high speed and using water as a test fluid. The theoretical and experimental results indicate that the temperature on seal faces rises and friction torque increases with the speed and supply pressure, and these increases vary slightly with the depth of the spiral groove. These findings lend great theoretical and experimental insights to the design of face seals applied in liquid engine turbopumps.