前伸式双叶片污水泵设计和通过能力试验  

Design and passage capacity experiment of forward extended double blades sewage pump

作　　者：王准[1] 施卫东[1] 蒋小平[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《排灌机械》2008年第3期26-29,共4页Drainage and Irrigation Machinery

基　　金：江苏省"333高层次人才培养工程"项目;安徽省科技攻关项目(06022025)

摘　　要：阐述了前伸式双叶片污水泵运行效率高、振动小、噪音低、运行平稳、固体通过能力好,特别是纤维性固体的通过能力好等特点,分析了该泵叶轮结构特点,提出了叶轮水力设计方法,通过实例说明其设计过程,并对设计的前伸式双叶片污水泵进行了试验验证.指出前伸式双叶片污水泵具有良好的综合性能的原因在于:采用叶片式结构,具有与普通叶片泵相当的效率;采用2叶片叶轮,减少流道的拥堵,提高了固体颗粒的通过能力;叶片大幅度前伸,对于少叶片数的泵来说,只要设计得当,不会引起进口排挤,有利于大大提高抗缠绕能力.As a new type of sewage pump, the advantages of forward-extended double blades sewage pumps were introduced, the configuration of the impellers was analyzed, and the method of hydraulic design was given. A design example was shown. The experiment results of pump＇s performance, passage capacity and anti-winding ability show that the forward-extended double blades pump can run with better stability and stronger anti-winding ability. The reason for its better performance was that two blades can provide larger flow passage which results in better passage capacity and the forward-extended blades can improve the anti-winding ability without blocking the inlet passage.

关 键 词：污水泵 前伸式双叶片 叶片进口 水力设计 通过能力 抗缠绕 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]