前混合磨料水射流切割系统压力损失分析与实验研究  

Research on Pressure Loss of Pre-mixed Abrasive Water-jet Cut System

作　　者：武光华[1] 龚烈航[1] 王洪伦[1] 刘述杰[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《机床与液压》2008年第2期90-93,共4页Machine Tool & Hydraulics

摘　　要：从理论上分析前混合磨料水射流切割系统压力损失产生的原因,并对不同条件下切割深度的变化规律进行了实验研究。结果显示,在前混合磨料水射流形成过程中,压力损失主要是由于磨料液由管道进入喷嘴发生断面收缩时造成的;随着水射流压力的增大,切割深度增加,压力损失增大,但增大的程度会越来越小;功率一定的情况下,随着喷嘴直径的增大,切割深度变小,压力损失减小,整个系统的能量利用率却增高。The pressure loss of pre-mixed abrasive water-jet cut system was analyzed theoretically. The cutting depth was measured under different conditions. The results show that the pressure loss in the generating process of pre-mixed abrasive water-jet is mainly resulted from the section shrinkage. As abrasive water-jet pressure increases, the cutting depth and pressure loss increase, but the increased degree decreases. As the nozzle diameter increases, the cutting depth pressure loss decrease, but the output power of the abrasive water-jet generating system is enhanced.

关 键 词：前混合磨料水射流 压力损失 两相流动 高压管路 切割系统 

分 类 号：TP60[自动化与计算机技术—控制理论与控制工程]