含水率对油水乳化液传输频率特性影响分析

发布时间：2018-05-28 04:10

本文选题：含水率 + 油水乳化液　；参考：《振动.测试与诊断》2017年05期

【摘要】：为了掌握油水乳化液中含水率对其动态特性的影响,建立含水率与乳化液传输的频率特性之间的非线性关系。首先,推导了油水乳化液在管体中压力波传播速度公式,分析了含水率对乳化液传输速度的影响规律;然后,利用分布参数理论以及传递矩阵法建立了油水乳化液的传输频率模型,表明在PVC透明钢丝软管中考虑流固耦合作用时含水率增加,其传播速度呈降低趋势;反之,钢管内乳化液的传输速度随着含水率的增加而呈递增趋势;含水率对系统的谐振频率影响也较为明显,乳化液中含水率越大,系统的同阶谐振频率越低,且随着含水率的增加,谐振频率的阶次越大,同阶次的谐振频率之间的差值也相应变大。实验验证所建模型是有效的,为有效检测油中含水率以及保障系统安全运行提供一定的理论基础。
[Abstract]:In order to understand the influence of water content in oil-water emulsion on its dynamic characteristics, the nonlinear relationship between water content and frequency characteristics of emulsion transmission was established. First, the formula of pressure wave propagation velocity of oil-water emulsion in pipe is derived, and the influence of water content on the velocity of emulsion transmission is analyzed. Based on the distribution parameter theory and transfer matrix method, the transmission frequency model of oil-water emulsion is established. The results show that the moisture content increases and the propagation velocity decreases when fluid-solid coupling is considered in PVC transparent steel wire hose. The transfer speed of emulsion in steel pipe increases with the increase of water content, and the effect of water content on the resonant frequency of the system is more obvious. The larger the moisture content in the emulsion, the lower the resonance frequency of the same order system, and with the increase of water content. The larger the order of the resonant frequency, the larger the difference between the resonant frequencies of the same order. The experimental results show that the model is effective and provides a theoretical basis for the effective detection of water cut in oil and the safe operation of the system.
【作者单位】：重庆工商大学废油资源化技术与装备教育部工程研究中心;
【基金】：国家自然科学基金资助项目(51375516) 重庆基础与前沿研究资助项目(cstc2016jcyjA0185)
【分类号】：TQ021.1

【相似文献】