摘要
为了分析隔膜泵的动态特性,在矿浆管道输送背景下,以GEHO TZPM 1600隔膜泵为研究对象,建立了隔膜泵机械-液压联合仿真模型,并分析了不同转速对隔膜泵动态特性的影响.同时,针对曲柄转速、曲柄长度和泵入口压力等参数对吸、排液阀启闭滞后时间进行了分析.分析表明,排液阀动态特性受曲柄转速变化的影响更大,曲柄转速从10 r/min增加到30 r/min时,排液阀开启速度最大增加了9.449 m/s,关闭速度最大增加了0.945 m/s,阀口流量脉冲增加的最大值为17220.0 L/min,回流流量增加的最大值为1071.5 L/min.吸、排液阀启闭滞后时间主要与曲柄转速、曲柄长度和泵入口压力有关.吸液阀开启滞后时间受转速影响更大,增加转速后开启滞后时间降低了0.117 s,关闭滞后时间更易受曲柄长度和泵入口压力的影响,随曲柄长度增加滞后时间增加了0.261 s.曲柄转速、曲柄长度、泵入口压力改变主要影响排液阀开启滞后时间.研究结果为矿浆输送中隔膜泵的技术改进提供了方向.
In order to analyze the dynamic characteristics of diaphragm pumps in the context of slurry pipeline transportation,the GEHO TZPM 1600 diaphragm pump was selected as the research subject.A mechanical-hydraulic joint simulation model for the diaphragm pump was established,and the effects of different crank speeds on the dynamic characteristics of the diaphragm pump was analyzed.Additionally,the effects of parameters such as crank speed,crank length,and pump inlet pressure on the opening and closing hysteresis times of the suction and discharge valves were examined.The analysis indicates that the changes in crank speed significantly influence the dynamic characteristics of the discharge valve.When the crank speed increases from 10 r/min to 30 r/min,the maximum opening speed of the discharge valve increases by 9.449 m/s,the maximum closing speed increases by 0.945 m/s,the maximum increase of the valve flow rate pulsations is 17220.0 L/min,and the maximum increase in backflow rate is 1071.5 L/min.The opening and closing hysteresis times of the suction and discharge valves are primarily influenced by crank speed,crank length,and pump inlet pressure.The opening hysteresis time of the suction valve is more strongly affected by the crank speed,with an increase in speed reducing the opening hysteresis time by 0.117 s.The closing hysteresis time is more susceptible to the influence of crank length and pump inlet pressure,with the hysteresis time increasing by 0.261 s as the crank length increases.Changes in crank speed,crank length,and pump inlet pressure mainly affect the opening hysteresis time of the discharge valve.The research findings provide guidance for the technological improvement of diaphragm pumps in slurry transportation systems.
作者
韩世昌
申哲
李妍
解天华
HAN Shichang;SHEN Zhe;LI Yan;XIE Tianhua(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650500,China;Yunnan International Joint Laboratory of Intelligent Control and Application of Advanced Equipment,Kunming University of Science and Technology,Kunming,Yunnan 650500,China;Yunnan Dahongshan Pipeline Co.,Ltd.,Yuxi,Yunnan 653405,China)
出处
《排灌机械工程学报》
北大核心
2025年第6期558-564,共7页
Journal of Drainage and Irrigation Machinery Engineering
基金
云南省科技厅科技计划项目(202001AU070032)。
关键词
矿浆输送
隔膜泵
联合仿真
动态特性
滞后时间
slurry transportation
diaphragm pump
joint simulation
dynamic characteristics
hysteresis time
