The Deveopment Of Screw Pump With Metal Stator

Via the summarizing on the screw pump system,this text has analyzed the application status in quo and the development direction inside and outside country ,the working characteristics of the oil extraction equipment and the affect of the down-hole condition to screw pump capability.this research starts with the being broadened kinds of the oil extraction equipment of screw pump,and plays down work intensity,cuts down operating maintenance expenses and reduces energy waste and one-off investment as a goal,and puts forward the solving scheme of the screw pump system with the metal stator and the rotor which has a sticked rubber outside metal pole。The experimentation in lab has made clear that :the principle of this kind of screw pump is feasible as a kind of new oil pumping equipment;and the processing technic of the stator and the rotor are fessible too.the easy damage part of the pump has transferred from the motionless stator to the motile rotor which is connected to the pumping rod to be easy replaced ,to gain energy conservation and lower cost .The screw pump equipment with the metal stator which is researched in the text is based on the traditional screw pump, and is a innovation after it has been researched many years later.It is a new attempt on the machined stator and rotor and the design of the base scheme and the structural parameter are all the innovation .therefore ,that are a great characteristic in the text.The research on theory and technique provide new theory and way for the machining and use of the screw pump later,and spread out the popularization of the screw pump.