Influence and optimization of groove structure parameters on vaporization characteristics of liquid film mechanical seals based on optimal mass transfer coefficient

被引：0
作者：
Xu X. [1 ]
Ma C. [1 ]
Sun J. [1 ]
Zhang Y. [1 ]
Yu Q. [1 ]
机构：
[1] College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing
来源：
Huagong Xuebao/CIESC Journal | 2022年 / 73卷 / 03期
关键词：
Average vapor phase volume fraction; Interaction; Mass transfer coefficient; Structural parameters; Vaporization;
D O I：
10.11949/0438-1157.20211620
中图分类号：
学科分类号：
摘要：
On the basis of obtaining the optimal mass transfer coefficient in the Lee phase change mass transfer equation, the influence of the groove structure parameters such as helix angle, groove diameter ratio, groove weir ratio and groove depth on the vaporization characteristics of liquid film mechanical seals (characterization of average vapor phase volume fraction) is studied. And based on the uniform experimental design method and the response surface method, the interaction between the groove structure parameters is proved. Finally, the trough structural parameters are used as design variables, the average vapor phase volume fraction is used as the optimization objective, and the constraints are commonly used and empirically selected, and the genetic algorithm is used to obtain the optimal solution range of the structural parameters. Research shows that the average vapor phase volume fraction increases with the increase of helix angle, slot-weir ratio, and slot depth, and first increases and then decreases with the increase of slot-diameter ratio. The interaction between slot-weir ratio and groove depth is extremely significant, and the interaction between helix angle and groove depth is more significant. When the helix angle, groove diameter ratio, groove weir ratio and groove depth are 25.0°-28.0°, 0.10-0.30, 0.10-0.25 and 4.0-6.0 μm, better average vapor phase volume fraction values can be obtained. © 2022, Editorial Board of CIESC Journal. All right reserved.
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页码：1147 / 1156
页数：9
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