乳化液泵总效率提升手段及应用  

Means and Application on Improving Overall Efficiency of Emulsion Pumps

作　　者：刘昊 LIU Hao(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 100013,China;National Key Laboratory of Intelligent Coal Mining and Rock Stratum Control,Beijing 100013,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京100013 [2]煤炭智能开采与岩层控制全国重点实验室,北京100013

出　　处：《液压气动与密封》2024年第12期78-84,共7页Hydraulics Pneumatics & Seals

摘　　要：为了进一步提升乳化液泵总效率,基于传动系统、液力配流系统、压力控制系统方向开展能量损失控制手段研究。提出无减速机构的乳化液泵传动方式和基于网纹平顶珩磨的滑道内孔加工工艺,通过摩擦磨损试验验证乳化液泵十字头-滑道摩擦副的减磨降摩手段。研究高压填料密封预紧力对泄漏量的影响关系,通过试验验证能量损耗最低的预紧力,引入变频调速联动卸载阀替换原有压力控制系统,降低卸载阀卸载过程中的能量损耗。将以上研究内容应用于630 L/min,40 MPa乳化液泵并在巴彦高勒煤矿开展井下工业性试验,总效率可由原87%提升到91.5%。In order to further improve the overall efficiency of the emulsion pump,research has been conducted in the directions of the transmission system,hydraulic distribution system,and pressure control system for energy loss control measures.The study proposes a transmission method for the emulsion pump without a reduction mechanism and a processing technique for the inner bore of the slide based on meshed flat-top honing.Friction and wear tests are conducted to validate the wear reduction measures of the emulsion pump's crosshead-slide friction pair.The impact relationship between the high-pressure packing seal preload force and leakage is investigated,and experimental validation is performed to determine the preload force with the lowest energy loss.The original pressure control system is replaced with a variable frequency speed-regulated linkage unloading valve to reduce energy loss during the unloading process.The research findings are applied to a 630 L/min,40 MPa emulsion pump,and industrial tests are conducted underground at the Bayan Obo coal mine.The overall efficiency is increased from the original 87%to 91.5%.

关 键 词：乳化液泵 能耗 摩擦 填料密封 变频调速 

分 类 号：TH137[机械工程—机械制造及自动化] TD713[矿业工程—矿井通风与安全]