| 摘要 |
<p>An oil pump used in deep well especially a nc reciprocating immersible oil pump,which can integrate a power equipment and the oil pump and adjust the parameteron-line, comprises a balance sieve tube, a power equipment and the oil pump, allof which are immersed in the ground oil, wherein the power equipment comprisesa stator having a seal chamber and a rotor including an iron core and installedin the stator, the stator and the rotor constitute a friction pair through a supportingsleeve and the rotor core. The upper end of the stator links to the lower end of theoil pump connecting an oil outlet tube, the lower end of the stator links to thesieve tube in turn. In this application a rod and an oil pump overground are notused, therefor the fixing time and the cost are reduced, at the same time the enegycost are decreased too.</p> |
