한국기계기술학회지 제24권 제5호 (p.804-809)

구조해석을 통한 Valve out tool의 Collet 설계

Design of Collet of Valve Out Tool using Structural Analysis
키워드 :
Valve out tool(밸브 아웃 툴),Collet(콜렛),Structural analysis(구조해석),Equivalent stress(등가응력),Safety factor(안전율)

초록

The flange spreader has been used to withdraw gaskets and valves during butterfly valve maintenance. When using the conventional flange spreader, an excessive working space (pipe separation distance) appears, and the pipe and flange are damaged by the load. Also, the equipment can’t be operated safely when the pipe has eccentric fitting. To solve the problems, a valve easy out tool with collet was developed for safely fixing and spreading flange. By using Ansys Workbench 2021 R2, the structural analysis of the original collet was performed, and shape design of the collet was carried out to improve structural safety.