安全、健康和环境2026，Vol.26Issue(4)：56-64,9.DOI:10.3969/j.issn.1672-7932.2026.04.009
楔形节流阀节流流动规律分析及结构优化
Analysis of Throttling Flow Law and Structural Optimization of Wedge Throttle Valve
摘要
Abstract
To address the susceptibility of wedge choke valves to vibration fatigue and fluid erosion under extreme working conditions during well killing operations in high-pressure oil and gas wells,a fluid-structure in-teraction numerical model was established to systematically simulate and analyze the internal flow characteristics and structural optimization methods of throttle valves.The results showed that the segmented gradient wedge valve,through multi-stage pressure reduction and flow guidance optimization,significantly mitigated high flow velocities and dense vortices within the large opening range.This design expanded the controllable opening range and improved regulation accuracy and stability.Furthermore,increasing the buffer chamber diameter ef-fectively reduced the maximum flow velocity of the mud,however,when it reached 80 mm,the deceleration effect plateaued,and significant vortices emerged.Based on a comprehensive evaluation of flow velocity control and vortex suppression,the optimal structure is determined to be a segmented gradient wedge valve paired with a buffer chamber having both a radius and height of 65 mm.关键词
节流阀/冲蚀/仿真模拟/结构优化/流场分析Key words
throttle valve/erosion/simulation/structural optimization/flow field analysis分类
机械制造引用本文复制引用
程永钦..楔形节流阀节流流动规律分析及结构优化[J].安全、健康和环境,2026,26(4):56-64,9.基金项目
国家科技重大专项(2025ZD1401900),复杂深地安全高效钻完井技术与装备. （2025ZD1401900）
