部分流式液氮泵水力特性测试  

Hydraulic characterization of partial Emission cryogenic nitrogen pump

作　　者：朱圣良[1] 袁春燕[1] 庄明[1] 陆小飞[1] 刘晓东[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《低温工程》2012年第4期34-37,共4页Cryogenics

基　　金：国家自然科学基金(No.50906093)支持

摘　　要：结合应用中高扬程小流量特点,设计加工了一台长轴式部分流低温液氮泵。为评价包括扬程、气蚀特性等泵的实际性能,搭建了一个低温液体泵测试平台。实验测试了不同转速下泵的流量、扬程,并与设计值进行比较,给出了泵的运行工况建议。试验中泵在6 600 r/min转速下达到扬程71 m。A long shaft partial emission pump was designed and manufactured to meet a requirement of small flow rate and high pump head. The actual performance of pump was measured in a test platform pre- pared for the pump, including pump head and cavitation characteristic curves. The pump head and the flow rate was recorded for different pump speeds and the pump performance was compared with the predicted val- ues. A suggestion was presented for the proper functioning of pump. The pump achieved a head of 71 m at pump speed of 6 600 r/min.

关 键 词：低温液氮泵 部分流泵 水力特性 实验研究 

分 类 号：TB657[一般工业技术—制冷工程]