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针对某正向卸荷式气体减压阀高压冲击时出口压力超调和振荡现象,通过AMEsim仿真软件建立减压阀以及增压系统的仿真模型,对比分析了阀芯开度、限流圈、管系对出口压力的影响,确定了以减小阀芯开度和增加阀前限流圈的综合技术措施减小出口压力超调和振荡。通过单机高压冲击试验和整机试车考核,改进后的减压阀出口压力建压平稳、无超调现象、无明显振荡,解决了工程研制问题。本文研究结果表明,减小减压阀阀芯开度、在阀前增加限流圈的技术措施,对于提升减压阀抗高压冲击能力具有一定的通用性,对其它超高压气体减压阀设计具有指导意义。
Aiming at overshoot and oscillation of outlet pressure of a relief unloading gas pressure relief valve under high pressure, the simulation model of pressure reducing valve and pressure increasing system was established by AMEsim simulation software. The valve opening, Department of the impact on the outlet pressure, to determine the valve opening to reduce and increase the valve before the limit ring comprehensive technical measures to reduce the outlet pressure overshoot and oscillation. Through the single high-pressure impact test and machine test, the improved pressure relief valve outlet pressure build pressure stable, no overshoot phenomenon, no obvious oscillation, to solve the engineering research and development. The results of this paper show that the technical measures to reduce the opening of the valve core of the relief valve and increase the restriction ring before the valve have some commonality to enhance the anti-high-pressure impact capability of the relief valve. The design of other ultra-high pressure gas relief valve It is instructive.