煤层气井新型螺旋轴流式混抽泵设计  

Design of New Helico-axial Multiphase Pump for CBM Wells

作　　者：李增亮[1] 鲁佳琪 石白妮 赵传伟[1] 董祥伟[1] 韩军 黄勇 吴仕贵 赵培华 

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]中石油煤层气有限责任公司,北京100028

出　　处：《煤矿机械》2013年第5期35-37,共3页Coal Mine Machinery

基　　金：国家科技重大专项项目(2011ZX05038-002);中央高校基本科研业务费专项资金资助(10CX05009A)

摘　　要：针对煤层气井排采中含有气体与煤粉的特点,专门设计了泵的增压单元,并且采用压紧式叶轮结构,有效延长了泵的工作寿命。对样机进行室内试验研究,给出了该泵的外特性曲线,结果表明在入口含气率在40%左右时,样机的最高效率达到了40%,单级扬程2.6 m,该泵对高含气率的多相流体混抽效果明显,对煤粉固体颗粒不敏感,在煤层气开采中具有较好的推广应用前景。A new type of helico-axial multiphase pump for CBM wells was designed. Considering gases and coal fines in CBM wells, a key compression unit was designed and a new kind of compression impeller structure was designed for the new helico-axial multiphase pump which effectively extend the working life of the pump. A test bench was built and many experiments was conducted. The characteristics of the experiment results were given as well. The results show that the efficiency the prototype reached 40% and the head reached 2.6 m when the inlet GVF is 40%. The new pump is good in multiphase pumping and has good prospect of application and extension in coalbed gases exploring.

关 键 词：煤层气 螺旋轴流式混抽泵 压紧式叶轮 试验研究 

分 类 号：TH312[机械工程—机械制造及自动化]