摘要
混输转子泵是气液固三相混输工艺的关键设备,输送介质成分复杂,内部流动机理尚不明确。因此,基于动网格技术和Mixture多相流模型对混输转子泵内部进行数值模拟,分析了混输转子泵在不同工况参数下的性能变化规律。结果表明:气相与固相占比对混输泵性能影响不明显;转速对混输转子泵性能影响明显,转速增加,容积效率显著上升,流量脉动略微降低;随着压差的增加,出口流量降低,容积效率显著下降,流量脉动大幅上升;而在3个工况参数交互作用下,混输转子泵的性能波动明显,混输转子泵在低含气、高含砂、低转速、高压差工况时表现较差。研究结果对混输转子泵的深入研究和广泛应用提供了有价值的参考。
The multiphase rotor pump is the key equipment of the gas-liquid-solid three-phase mixing process.The composition the conveying medium is complex and the internal flow mechanism is not clear.Therefore,based on the dynamic mesh technology and Mixture multiphase flow model,the numerical simulation of the mixed rotor pump is carried out,and performance variation law of mixed rotor pump under different working conditions is analyzed.The results show that the proportion of gas phase and solid phase has no obvious effect on the performance of multiphase pump.The rotational speed has a significant effect on the performance of the mixed rotor pump.As rotational speed increases,the volumetric efficiency increases significantly,and the flow pulsation decreases slightly.As the pressure difference increases,the outlet flow rate decreases,the volumetric efficiency decreases significantly,and the flow pulsation increases significantly.Under the interaction of the three working parameters,the performance of the mixed rotor pump fluctuates obviously,and the mixed rotor pump performs poorly under the conditions of low gas content,high sand content,low speed and high pressure difference.The research results provide a valuable reference for the in-depth study and wide application of the mixed rotor pump.
作者
王俊杰
李琴
刘伯韬
陈科
王美玲
熊蕾
WANG Jun-jie;LI Qin;LIU Bo-tao;CHEN Ke;WANG Mei-ling;XIONG Lei(School of Mechanical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500)
出处
《液压与气动》
北大核心
2024年第2期153-164,共12页
Chinese Hydraulics & Pneumatics
关键词
混输转子泵
工况参数
数值模拟
参数化研究
性能影响
mixing rotor pump
working parameter
numerical simulation
parametric study
performance impact
作者简介
王俊杰(1996—),男,重庆潼南人,硕士研究生,主要从事油气运输关键技术的研究工作。
