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橡塑技术与装备 CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT

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Simulation research on sealing performance of polyurethane sealing
ring for gate valve

1
1
1
1*
Wang Xiaodong , Sun Fengge , Dai Zhixiang , Xia Liqiang , Zhang Jiashun 2
(1. CHEC Dredging Co. LTD., Shanghai 200000, China;
2. Shandong University of Science and Technology, Qingdao 266000, Shandong, China)
Abstract: Sealing ring is an important element in gate valve to prevent leakage and improve work
efficiency. In the development of gate valve technology, it is of great significance to study the sealing
performance of sealing rings of different materials. In this paper, the working process of the sealing ring was
simulated by ANSYS Workbench finite element software. According to different material combinations and
different structures, the sealing performance of the sealing ring was analyzed. The results show that when
the combination of 60A and 85A polyurethane materials can ensure less frictional stress and higher sealing
performance. Optimizing the chamfer into a fillet can not only reduce the generation of contact stress, but
also stabilize the generated stress.
Key words: sealing performance; fillet; contact stress; finite element
(R-03）

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