发明申请
US20150143822A1 CRYOGENIC SUBMERGED PUMP FOR LNG, LIGHT HYDROCARBON AND OTHER ELECTRICALLY NON-CONDUCTING AND NON-CORROSIVE FLUIDS
审中-公开
用于液化天然气，轻烃和其他非导电和非腐蚀性流体的低温含水泵
- 专利标题： CRYOGENIC SUBMERGED PUMP FOR LNG, LIGHT HYDROCARBON AND OTHER ELECTRICALLY NON-CONDUCTING AND NON-CORROSIVE FLUIDS
- 专利标题（中）： 用于液化天然气，轻烃和其他非导电和非腐蚀性流体的低温含水泵
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申请号： US14555470申请日： 2014-11-26
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公开(公告)号： US20150143822A1公开(公告)日： 2015-05-28
- 发明人: Dennis W. Chalmers , Mina Botrous , Mugdha Dokhale , Elidio Ruiz , Mark Geipel
- 申请人： Dennis W. Chalmers , Mina Botrous , Mugdha Dokhale , Elidio Ruiz , Mark Geipel
- 主分类号： F04D13/08
- IPC分类号： F04D13/08 ; F04D13/06
摘要：
A cryogenic submerged multi-stage pump assembly includes a vertically oriented pump shaft. A permanent magnet electrical motor includes a rotor attached to the pump shaft and a stator disposed about the rotor. A first-stage impeller assembly includes a first impeller attached to the pump shaft, the first impeller configured to move a cryogenic fluid from a first impeller inlet to a first impeller outlet when the pump shaft is rotated by the electric motor. A second-stage impeller assembly includes a second impeller attached to the pump shaft, the second impeller configured to move the cryogenic fluid from a first impeller housing to a second impeller inlet and then to a second impeller outlet when the pump shaft is rotated by the electric motor. The first and a second impeller housing are disposed about the first and second impellers and configured to channel the cryogenic fluid.
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