A motor direct drive rod ground screw pump device

Details A motor direct drive rod ground screw pump device A motor direct drive rod ground screw pump device

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 47/02 (2006.01) E21B 43/00 (2006.01) H02P 29/00 (2006.01)

Patent

CA 2671353

A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less DC motor, and comprises a motor controller (6), a rectifying circuit, an inversion circuit, a CPU and a driving circuit. The motor controller (6) is used to adjust the voltage and frequency of the motor by the rectifying circuit, the inversion circuit, the CPU and the driving circuit. Thus, the speed of the motor can vary from zero to the maximum. The device is easy to operate and has a higher efficiency.

Dispositif pompe de surface à vis à tige d'aspiration à entraînement direct par moteur, entraîné par un moteur vertical à courant continu sans balai à aimant permanent à trois phases, comprenant un contrôleur (6) moteur, un circuit redresseur, un circuit inverseur, une unité centrale et un circuit de pilotage. Le contrôleur (6) moteur est utilisé pour régler la tension et la fréquence du moteur par le circuit redresseur, le circuit inverseur, l'unité centrale et le circuit de pilotage. Ainsi, la vitesse du moteur peut varier entre zéro et le maximum. Le dispositif est facile à mettre en AEuvre et présente un rendement élevé.

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