关键词: 往复式磁力驱动柱塞泵, 直线电机, 传感器, 参数调整, 防蜡工艺

Abstract: The reciprocating magnetic drive plunger pump and ground numerical controller were developed.The numerical controller can supply power to the underground linear motor by power cables to produce variation magnetic field.Under the action of variation magnetic field,the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground.The signals of underground pressure and temperature in sensor can be transferred to the parameter adjustment module on the ground numerical controller by signal cable.The digital signal conversion of pressure pulse and liquid level can produce effects on adjusting operation frequency of the plunger pump,which makes oil well operating at a suitable submergence depth and ensures rationality of input and output of oil.Moreover,the technology test with DX-1 type electromagnetic paraffin controller has achieved good effect.

Key words: reciprocating magnetic drive plunger pump, linear motor, sensor, parameter adjustment, paraffin control technology