Pressurizing water injection system of screw pump

The utility model discloses a pressurizing water injection system of a screw pump, comprising a permanent magnet synchronous motor and a screw pump, wherein an output shaft of the permanent magnet synchronous motor is connected with a protector, the protector is connected with the screw pump by a connector, and the permanent magnet synchronous motor is connected with a controller in a control cabinet by a connecting line. The cavity of the protector is internally filled with electric engine oil and is provided with a thrust bearing, and the thrust bearing carries axial force carried by the output shaft. The controller is provided with a wireless remote control module, so that the remote control is realized. The investment of water injection for a long-distance high-pressure pipeline can be saved, the injection pressure can be guaranteed, the whole water injection process can be succinctly and effectively completed, and the energy-saving and consumption-reducing effect can be obvious, so that a prominent econo