7500 t大型压铸机压射阀块流道流阻数值计算与分析  

Numerical Calculation and Analysis on Flow Resistance of 7500 t Large Die Casting Machine Injection Valve Block

作　　者：刘双勇 赵永刚 程德飞 董彦武 焦阳 张志刚 LIU Shuang-yong;ZHAO Yong-gang;CHENG De-fei;DONG Yan-wu;JIAO Yang;ZHANG Zhi-gang(CITIC Dicastal Co.,Ltd.,Qinhuangdao 066011,China;Qinhuangdao XinYue Intelligent Equipment Co.,Ltd.,Qinhuangdao 066011,China)

机构地区：[1]中信戴卡股份有限公司,河北秦皇岛066011 [2]秦皇岛信越智能装备有限公司,河北秦皇岛066011

出　　处：《液压气动与密封》2023年第8期24-29,共6页Hydraulics Pneumatics & Seals

摘　　要：7500 t大型压铸机由于工作流量大,在工作时会在阀块内产生较大的压力损失,为了给大型压铸机液压系统设计提供参考,利用计算流体动力学方法,计算得到了两种内部流道不同的压射阀块在不同流量时的流动阻力损失。计算结果表明:阀块流动阻力损失会随着流量的增大呈现出指数增大的变化情况;采用相同尺寸的流道流动阻力损失比采用不同尺寸的流道流动阻力损失小。Due to the large working flow,large pressure loss will be generated in the valve block during the operation of large die casting machine.In order to provide reference for the hydraulic system design of large die casting machine,the computational fluid dynamics method is used to calculate the pressure loss of two different injection valve block structures at different flow rates.The calculation results show that:The pressure loss of valve block will increase exponentially with the increase of flow rate.Using the same size runner pressure loss is smaller than using different size runner pressure loss.

关 键 词：阀块 流场 流阻损失 

分 类 号：TH137[机械工程—机械制造及自动化]