Main reasons of leaktightness failure of detachable flanged joints with lens seal ring

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Pogodin, V.K.^1 ; Gozbenko, V.E.^2

Irkutsk State Transport University, 15 Chernyshevsky Street, Irkutsk

664074, Russia^1

Angarsk State Technical University, 60 Chaykovskogo Street, Angarsk

665835, Russia^2

关键词: Contact characteristics;    Contacting surfaces;    Depressurizations;    Design features;    Detachable joints;    Development and operations;    External conditions;    Technological factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012150/pdf
DOI  :  10.1088/1757-899X/560/1/012150

来源: IOP

【 摘 要 】

The main indicator of the performance of any design of detachable joints is its tightness, which is ensured by pressing the sealing surfaces of its parts to each other with a certain force. The frequent depressurization of detachable joints arising in practice is explained by the difficulty of determining the force that takes into account the influence of the design features of the parts of detachable joints and the intensity of their change from external conditions and the time of operation. Work on the definition of tightness carried out by the authors is different in that they take into account changes in the contact characteristics and the mutual influence of irregularities of the contacting surfaces. Considering the results of previous studies on the relationship between the tightness of the sealing device and technological factors, it can be said that the role of these factors is very significant, but it is rather difficult to assess the joint influence of technological factors on the tightness of any one design. Development and operation of new detachable connections with a lens sealing ring should be carried out taking into account the analysis carried out in this study and the established reasons for their depressurization.