一种非平衡式截止阀开关行程所需推力的计算方法
By constructing a structured thrust calculation model for an unbalanced shut-off valve, systematically integrating various axial forces and distinguishing opening and closing strokes, the problems of model simplification and insufficient adaptability in existing technologies are solved, enabling precise valve design and safe selection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SANMEN NUCLEAR POWER CO LTD
- Filing Date
- 2026-03-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for calculating the thrust of unbalanced shut-off valves suffer from model simplification, neglect of key mechanical components, failure to distinguish dynamic differences in opening and closing strokes, and lack of adaptability to complex working conditions and long-term operation, resulting in inaccurate calculation results and potential safety hazards.
A structured thrust calculation model is constructed to systematically integrate various axial forces during the valve opening and closing process, including valve stem gravity, friction, pressure difference, sealing force, etc. By clearly distinguishing the force differences between the opening and closing strokes, and introducing user-defined force terms, it can adapt to complex working conditions.
It improves the accuracy and adaptability of thrust calculation, ensures precise valve design and safe selection, reduces equipment weight and energy consumption, and reduces operational risks.
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