A Simple Approach to the ThermoElastoHydroDynamic Behavior of Mechanical Face Seals
A Simple Approach to the ThermoElastoHydroDynamic Behavior of Mechanical Face Seals
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DOI：
10.1080/10402000802441587
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发表时间：
2009-01
影响因子：
2.1
通讯作者：
N. Brunetière;Alexandru Apostolescu
中科院分区：
文献类型：
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作者：
N. Brunetière;Alexandru Apostolescu
本文对非接触式机械密封进行了半解析分析。该模型考虑了通常决定机械密封性能的热效应和端面变形。结果表明，密封性能是两个无量纲参数的函数：（a）密封数Se，它取决于密封的操作和设计参数，和（B）锥形数Co，这是弹性和热变形的比率。将理论结果与在内部加压密封上获得的测量结果进行比较。良好的协议上的温度的脸和耗散功率获得各种转速，验证了在开发模型中使用的假设。分析Se和Co对机械端面密封性能的影响，可以突出几种操作模式。
This article presents a semi-analytical analysis of non-contacting mechanical face seals. The model takes account of thermal effects and face distortions that generally determine the performance of mechanical seals. It is shown that the seal behavior is a function of just two dimensionless parameters: (a) the sealing number Se, which depends on the operating and design parameters of the seal, and (b) the coning number Co, which is the ratio of elastic and thermal distortions. The theoretical results are compared to measurements obtained on an inner pressurized seal. Good agreement on the temperature of the faces and on dissipated power is obtained for various rotation speeds, validating the assumptions used in developing the model. The analysis of the influence of Se and Co on the behavior of mechanical face seals makes it possible to highlight several operating modes.