50ZB-30C型射流式自吸喷灌泵的设计与试验  

Design and Experiment of 50ZB-30C Self-priming Irrigation Pump

作　　者：沈振华[1] 刘建瑞[1] 高网大 赵学林 李红[1] 

机构地区：[1]江苏大学,江苏镇江212013 [2]金坛旺达喷灌机有限公司,江苏金坛213223 [3]巩义市曙光两相流泵厂,河南巩义451263

出　　处：《流体机械》2009年第4期1-4,共4页Fluid Machinery

基　　金：国家高技术研究发展计划(863)(2006AA100211);浙江省重大科技专项社会发展重点项目(2007C13032)

摘　　要：通过理论计算及有限元分析对碗式回流阀进行了结构优化,使阀在泵完成自吸后,自动关闭回流孔。对射流喷嘴进行结构设计,并研究了3种射流喷嘴尺寸对自吸性能的影响,通过试验找出了与该泵匹配的最佳方案。通过水力设计、回流阀与喷嘴结构的设计优化,泵效率比国家标准的规定值提高了9%。The structure of dish valve was optimized by theoretical calculation and finite element analysis.After self-priming,dish valve closed the reflux hole.The structure of ejector was designed.The influence of sizes of three ejectors on self-priming capability was researched.And the best scheme was found by experiments.As a result of hudraulic design,optimized structure of dish valve and ejector,the efficiency is 9% higher than that of national standard.

关 键 词：射流式自吸喷灌泵 碟阀 射流式喷嘴 自吸时间 

分 类 号：TH311[机械工程—机械制造及自动化]