Mathematical modeling of the interference of seal pair in triple-offset butterfly valve

作者：Kan Biao^*; Jin Mingwei; Ding Jianning; Hua Tongshu; Yang Guangxian

来源：Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science , 2012, 226(C12): 3026-3031.

DOI：10.1177/0954406212440529

• Triple-offset butterfly valve
• sealing
• interference
• mathematical model

Avoiding interference of seal pair in triple-offset butterfly valve is critical to its performance and service time. In this article, a mathematical model is proposed for the seal interface. A formula is derived to evaluate the interference of seal pair in triple-offset butterfly valve. Five parameters are considered, including the diameter of valve disc, the effective sealing thickness, axial offset, radial offset, and eccentric angle. The influences of axial offset, radial offset, and eccentric angle on the interference area and position are investigated. The results show that the interference area decreases initially and increases finally when either the axial offset or the eccentric angle increases, whereas it decreases monotonously as the radial offset increases.

• 出版日期2012
• 单位常州大学