新型多功能清洗机液力控制系统流场研究

A Study on the Flow Field in the Hydraulic Control System of New Multifunctional Cleaner

介绍了新研制的一种新型清洗机所采用的调压溢流阀和转速调节阀结构及其原理。在此基础上 ,运用弹性水击理论及阀和泵动作的边界条件 ,对两阀内部和两阀之间的管道流场建立相应的数学模型 ,得出管道系统的压力变化规律。在两阀内部 ,利用计算出来的解析关系式对阀内部结构尺寸参数和弹簧弹性系数进行优化设置 ,最后通过实验结果 ,检验了参数设置的正确性。

This paper introduces the structure and principle of the pressure regulating overflow valve and rotation speed regulation valve used in a new type of cleaner. It gets the rule of pressure change in pipe system by means of establishing the mathematic models for the pipe flow field inside the two valves and between them with elastic water hammer theory and the boundary condition of valve and pump. Finally, this paper carries out optimum arrangement on the parameters of inside structure of valves and elastic indexes using the calculated relation, and proves the correctness of the parameters through experimental findings.