Volume 19, Issue 9 (2019)                   Modares Mechanical Engineering 2019, 19(9): 0-0 | Back to browse issues page

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Sayahbadkhor M, Mozafari A, Naddaf Oskouei A. Experimental and numerical investigating of failure factors in one-way ring valves in reciprocating Compressors. Modares Mechanical Engineering. 2019; 19 (9)
URL: http://journals.modares.ac.ir/article-15-24981-en.html
1- Faculty of Engineering in comprehensive Imam Hossein UniversityFaculty member of eyvanekey university
2- Graduated
3- Faculty Member of Imam Hossein comprehensive university , anadaf@ihu.ac.ir
Abstract:   (182 Views)
The ring inside the one-way valve has an important role in the reciprocating compressor. In this article, two different materials for rings are considered; stainless steel with the material number 1.5022 and sign 38si6, and carbon-peek composite. These two rings were prepared in valves with identical conditions as design and manufacturing and were used in reciprocating compressors with same applications. In this experiment results showed that the life of the valve with steel ring was 145 days, while the valve with a carbon-peek ring was intact after 210 days. The most important cause of early failure in the steel ring is inappropriate distribution of forces due to the springs below the ring. Another common cause of failure in these valves is the stresses on walls in the location of springs. Therefore, in this paper, the stresses in the chamber of springs, which are critical points in the design and construction of the valves, are also discussed. By using robust codes like Abaqus software, the design and analysis stages of the valve are carried out in quasi-static conditions. When steel ring was used, in comparison with carbon-peek composite ring, the stresses and tensions on the chamber of spring and the self-ring are much stronger. The results obtained from numerical simulations are consistent with experimental observations.In addition by using flow relations determine accurate thickness for ring.
     

Received: 2018/09/10 | Accepted: 2019/03/19 | Published: 2019/03/19

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