JI, Jingjing,纪晶晶,LUO, Xianwu,罗先武,YU, An,于安,LIU, Shuhong,刘树红,JI, Bin,季斌,WU, Qingyu,吴清玉,ZHANG, Mingkui,张明奎
申请号：
CNCN2013/074517
公开号：
WO2014/166128A1
申请日:
2013.04.22
申请国别(地区):
WO
年份:
2014
代理人:
摘要：
Disclosed is a dynamic-pressure suspension-type double-flow pump, comprising two flow channels which are opposite to and insulated from each other, wherein the flow channels are respectively composed of an inlet (1, 11), an impeller (18, 14), a pumping chamber (3, 8) and an outlet (4, 15), and the geometric parameters of the flow channels are different or the same. A stator (6) of the pump is inlaid in a pump shell (5), a permanent magnet (7) is inlaid in a rotor (17), and they are oppositely arranged in a radial direction. A radial clearance (23) exists between the inner surface of the pump shell (5) and the outer surface of the rotor (17), thereby a liquid dynamic-pressure support for constraining the radial movement of the rotor (17) being able to be formed when the pump normally operates. An axial clearance exists between a front cover plate (21, 9) of each of the impellers (18, 14) and a corresponding pump cover (2, 10), thereby forming a liquid dynamic-pressure support for constraining the axial movement of the rotor (17) when the pump normally operates. Therefore, the rotor can be suspended in a pump cavity during normal operation. The double-flow pump relates to a magnetically driven blade-type subminiature pump without an external mechanical shaft, which can satisfy the requirements of double-flow usage with different flow rates and pressures, is beneficial to effectively form a good flow condition in the inner cavity of the pump shell, and can improve the operational reliability of the pump.La présente invention concerne une pompe à double écoulement de type à suspension à pression dynamique, comprenant deux canaux découlement se faisant face et isolés lun de lautre, les canaux découlement étant respectivement constitués dune admission (1, 11), dun impulseur (18, 14), dune chambre de pompage (3, 8) et dun refoulement (4, 15), et les paramètres géométriques des canaux découlement sont différents ou identiques. Un stator (6) de la pompe est incrusté dans le
