WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 11, 2016
Study on Contact State and Contact Stress Distribution of Kettle Mechanical Seal
Authors: , , , ,
Abstract: In traditional mechanical seal design, the average transverse stress is used. However, in practice, the distribution of seal face contact tress is not uniform. The contact state and contact stress distribution affect seal face’s state of wear and deformations, which are of vital to the sealability and sealing life. Therefore, in this paper, complete and accurate finite element models of kettle mechanical seal (KMS) rotator ring, stator ring and stator ring seat were established by ANSYS. The seal face contact state and the contact stress distribution were obtained by the finite element analysis. And the influence laws of working pressure P, stator ring height H, load coefficient K, stator ring auxiliary O-ring inner diameter ratio S, etc. on the face performance were analyzed. It was shown that the contact stress distribution may be non-uniform in higher working pressure condition. Besides, the higher the working pressure P was, the more non-uniform the distribution was and the smaller the contact area was. The contact stress distribution was more uniform, the contact area increased and the maximum seal face contact stress decreased with the increasing of H, K and S. The research results were verified by designed test and provide a theoretical basis for the design and optimization of mechanical seal.
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Pages: 49-56
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 11, 2016, Art. #6