摘要
节能降耗一直就是电液控制技术领域的研究热点与难点。文章针对汽车用液压电梯系统能耗高的问题,设计了一种采用液压配重的汽车用背包式液压电梯系统,并对其核心部件蓄能器的工作特性进行了介绍,分析了蓄能器等温比压rp对蓄能器总容积与电机最大输出功率的影响,最终选定公称容积为63 L的蓄能器;对蓄能器在实际工况下的压力-容积曲线进行试验测定,并通过数据拟合得出切合真实工况的蓄能器气体多变指数n的数值。结果表明,所设计的液压电梯系统的装机功率约为11 kW,较之同工况的阀控调速液压电梯,装机功率更少。为节能降耗领域提供一定的参考。
Energy saving and consumption reduction has always been the research hotspot and difficulty in the field of electrohydraulic control technology.Aiming at the problem of high energy consumption in automotive hydraulic elevator system,this paper designs a backpack hydraulic elevator system with hydraulic counterweight,introduces the working characteristics of its core component accumulator,analyzes the influence of the isothermal specific pressure rp of accumulator on the total volume of accumulator and the maximum output power of motor,and finally selects the accumulator with nominal volume of 63 L.The pressure-volume curve of accumulator under actual working condition is measured experimentally.The value of the accumulator gas variability index n that fits the real working conditions is obtained.The results show that the installed power of the designed hydraulic elevator system is about 11kW,which is less than that of the valve-controlled speed-regulating elevator under the same working condition.It provides a reference for the field of energy saving and consumption reduction.
作者
陈健
张兵
CHEN Jian;ZHANG Bing
出处
《汽车工程师》
2021年第1期34-39,共6页
Automotive Engineer
基金
国家自然科学基金(51805215)
江苏大学工业中心2018大学生创新实践基金(ZXJG2018057)。
关键词
液压电梯
蓄能器
装机功率
压力-容积曲线
气体多变指数
Hydraulic elevator
Accumulator
Installed power
Pressure-volume curve
Gas variability index
