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| Three dimensional motion simulation and locus optimization design of progressive cavity pump rotor |
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AN Yong-sheng1,SONG Yang1,ZHANG De-shi2,MA Lu-xia3,SUN Chun-long2
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(1. College of Petroleum. Engineering in China University of Petroleum, Beijing 102249，Chirm ;2. Research Institute of Oil Production Engineering of Daqing Oilfield Company limited, Daqing 163002，China;3.Oil Economic and Management Research Institute, Northeast Petroleum University，Daqing 163318, Chirm)
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| Abstract: |
| The three dimensional finite element analysis model was conducted to study the rotor's movement locus in the interference iit condition. It was conducted to simulate the contact and interaction between the stator and rotor under the hydraulic condition. The rotor's movement locus under pressure was gotten. The mechanism of the changed rotor's movement locus was explained. For improving the movement characteristic of progressive cavity pump and declining the torque, a locus optimization method was given by which pitch circle diameter and eccentricity of rotor can be changed. The results show that this method can fix the trajectory of rotor inside the stator, optimize the working characteristic and extend the life of progressive cavity pump. |
| Key words: progressive cavity pump rotor stator three dimensional simulation finite element analysis locus optimiza- |
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