压缩机节能调控系统液压参数优选与影响分析研究  

Optimization and Impact Analysis on the Hydraulic Parameters of Energy-saving and Control System in Reciprocating Compressor

作　　者：周超 程贵健 于铁男 武小乂 张进杰 Zhou Chao;Cheng Guijian;Yu Tienan;Wu Xiaoyi;Zhang Jinjie(Beijing Key Laboratory of Health Monitoring Control and Fault Self-recovery for High-end Machinery Beijing University of Chemical Technology,Beijing 100029,China;Refinery of Petro China Daqing Petrochemical Co.,Ltd.,Daqing 163711,China;College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China;State Key Laboratory of Compressor Technology,Anhui Provincial Laboratory of Compressor Technology,Hefei 230031,China)

机构地区：[1]北京化工大学高端机械装备健康监控与自愈化北京市重点实验室,北京100029 [2]中国石油大庆石化分公司炼油厂,黑龙江大庆163711 [3]北京化工大学材料科学与工程学院,北京100029 [4]压缩机技术国家重点实验室压缩机技术安徽省实验室,合肥230031

出　　处：《流体机械》2019年第12期1-7,共7页Fluid Machinery

基　　金：国家重点研发计划项目(2016YFF0203305);中央高校基本科研业务费专项资金资助项目(JD1912);压缩机技术国家重点试验室(压缩机技术安徽省试验室)开放基金项目(SKL-YSJ201808)

摘　　要：液压驱动的节能调控系统在我国石油化工行业往复压缩机上应用广泛,是压缩机实现节能降耗和高效运行的关键设备。液压装置提供的卸荷器驱动力直接影响气量调节精度、压缩机进排气温度以及机组振动。本文建立了液压驱动执行机构的工作数学模型,结合FLUENT仿真对压缩机气量调节变工况状态下的工作过程进行模拟,获得了变工况状态下气缸内动态压力特征;利用压缩机试验台对仿真结果进行了验证研究,获得了不同液压驱动力对应的气量调节效果,及卸荷器与阀片的瞬态运动规律,验证了仿真研究的正确性。在此基础上,提出了液压参数优选方法,为气量调节系统优化设计提供了技术支撑。The hydraulically driven energy-saving and regulation system is widely used in reciprocating compressors of petrochemical industry and is a key equipment which enable compressors to achieve energy conservation,consumption reduction and efficient operation.The driving force of unloader provided by the hydraulic system directly affects the regulation precision of the discharge capacity,suction and discharge temperature of the compressor and vibration of the unit.A mathematical model of the actuator driven by hydraulic system was established and simulations were conducted on the working process of the compressor under variable working conditions for discharge capacity in combination with Fluent simulation to obtain dynamic pressure characteristics of the cylinder under variable working conditions.The simulation results was verified using the compressor test bench,the capacity regulation effects corresponding to different hydraulic driving forces and the transient motion rules of the unloader and valve plate were obtained,which verified correctness of the simulation study.On this basis,the optimization method of hydraulic parameters was proposed,which provides technical support for optimization design of the discharge capacity regulation system.

关 键 词：往复压缩机 气量调节 液压驱动 参数优选 

分 类 号：TH45[机械工程—机械制造及自动化]