Study on sealing performance of interference combination of packing ring

被引：0
|
作者：
Chen R. [1 ]
Qiu J. [1 ]
Liu B. [1 ]
Ren G. [1 ]
机构：
[1] College of Power Engineering, Naval University of Engineering, Wuhan
来源：
Liu, Boyun (boyunliu@163.com) | 1600年 / Huazhong University of Science and Technology卷 / 45期
关键词：
Finite element analysis (FEA) model; Interference combination; Packing ring; Sealing performance; Stuffing box; Theoretical model;
D O I：
10.13245/j.hust.170915
中图分类号：
学科分类号：
摘要：
In order to improve the problem of nonuniform distribution of radial contact stress in stuffing box packing, interference combination of the packing ring was proposed, and the theoretical model and finite element analysis model of the new sealing structure were established. The theoretical and simulated values of axial and radial contact stress distributions were consistent, which verifies the correctness and applicability of the theoretical calculation model. Comparing and analyzing interference combination of the packing ring with the traditional stuffing box packing can get the result that when minimum value of radial contact stress is stable, the stress of the gland is smaller than that of the traditional packing, which reduces the relaxation of the packing material with time. The difference between the maximum and minimum values of the radial stress is smaller, which increases the uniformity of the radial stress distribution. The rotational friction force of the stem is reduced, which improves the maneuverability of the stem. The superiority of the interference combination of the packing ring is verified, which provides a theoretical basis for the actual packing sealing design. © 2017, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
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页码：83 / 89
页数：6
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