矿井排水系统离心泵叶片包角对其工作特性的影响研究  

Influence of Blade Angles of Centrifugal Pump in Mine Drainage System on Mine Drainage System

作　　者：李日鹏 Li Ripeng(Loutian Coal Industry Co.,Ltd.,Xinzhou Shanxi 036500)

机构地区：[1]山煤集团河曲旧县露天煤业有限公司,山西忻州036500

出　　处：《机械管理开发》2021年第5期85-87,共3页Mechanical Management and Development

摘　　要：为了研究矿井排水系统离心泵的叶片包角对其工作时空化振动和噪声的影响,以某型离心泵为研究目标,对其不同叶片包角情况下离心泵的工作特性进行了研究和试验验证。结果表明:随着叶片包角的增加,在各个监测点位所测得的离心泵的振动强度的变化规律较为复杂,在出口法兰测点的振动较弱,离心泵的叶片包角越大,在无空化状态下运转时离心泵工作时的轴频峰值表现出了先降低然后逐渐稳定的趋势,其在1800~2200 Hz的振动频段内能量的最大值随着空化程度的加大先变大后变小。In order to study the influence of blade angle of centrifugal pump in mine drainage system on its working space-time vibration and noise,a certain centrifugal pump is taken as the research goal.The working characteristics of centrifugal pump under different blade angle are studied and tested.The results show that with the increase of blade angle,the vibration intensity of centrifugal pump measured at each monitoring point is more complex,the vibration at outlet flange point is weak,and the blade angle of centrifugal pump is larger.The peak axial frequency of centrifugal pump in the vibration band of 1800~2200 Hz increases first and then becomes smaller.

关 键 词：排水系统 离心泵 叶片包角 工作特性 

分 类 号：TH311[机械工程—机械制造及自动化]