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基于流固耦合及实验分析的往复柱塞泵排出阀动态特性研究

Dynamic Behavior of Reciprocating Plunger Pump Discharge Valve Based on Fluid Structure Interaction and Experimental Analysis.

作者信息

Wang Guorong, Zhong Lin, He Xia, Lei Zhongqing, Hu Gang, Li Rong, Wang Yunhai

机构信息

School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, Sichuan, PR China.

SJ Petroleum Machinery Co., China Petrochemical Corporation, Jingzhou, Hubei, PR China.

出版信息

PLoS One. 2015 Oct 21;10(10):e0140396. doi: 10.1371/journal.pone.0140396. eCollection 2015.

DOI:10.1371/journal.pone.0140396
PMID:26488290
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4619497/
Abstract

The influence of spring stiffness and valve quality on the motion behaviors of reciprocating plunger pump discharge valves was investigated by fluid structure interaction (FSI) simulation and experimental analysis. The mathematical model of the discharge valve motion of a 2000-fracturing pump was developed and the discrete differential equations were solved according to FSI and results obtained by ANDINA software. Results indicate that spring stiffness influences the maximum lift, the opening resistance and shut-off lag angle, as well as the fluid velocity of the clearance, the impact stress and the volume efficiency of the pump valve in relation to the valve quality. An optimal spring stiffness parameter of 14.6 N/mm was obtained, and the volumetric efficiency of the pumping valve increased by 4‰ in comparison to results obtained with the original spring stiffness of 10.09N/mm. The experimental results indicated that the mathematical model and FSI method could provide an effective approach for the subsequent improvement of valve reliability, volumetric efficiency and lifespan.

摘要

通过流固耦合（FSI）模拟和实验分析，研究了弹簧刚度和阀质量对往复柱塞泵排出阀运动行为的影响。建立了2000型压裂泵排出阀运动的数学模型，并根据FSI和ANDINA软件获得的结果求解离散微分方程。结果表明，弹簧刚度影响最大升程、开启阻力和关闭滞后角，以及间隙处的流体速度、冲击应力和泵阀的容积效率，这与阀质量有关。获得了14.6N/mm的最佳弹簧刚度参数，与原始弹簧刚度10.09N/mm相比，泵阀的容积效率提高了4‰。实验结果表明，该数学模型和FSI方法可为后续提高阀的可靠性、容积效率和寿命提供有效途径。

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