QZB series submersible axial flow pump motor is a traditional group of replacement products, motor-driven pump is fully enclosed dry diving three-phase asynchronous motors, this type of long-term immersion in water submersible pump operation. Traditional unit series unparalleled advantages. (1) Due to the motor and pump constitute one, easy on-site installation, fast, compared with conventional units can save 95% installation time. (2) Since the motor is running dive into the water, motor cooling conditions are good, no heat inside the station, low noise, can be built underground pumping station, keeping the floor style environment, greatly simplifying the geotechnical and structural engineering building pumping stations to reduce the mounting area, saving engineering cost of 30-40% (3) submersible motor with double, triple mechanical seal and secondary seal structure, F class insulation temperature 155 ℃, protection class IP68. And sealing leaks, winding and bearing temperature detection device in the motor. (4) focus detection signal feedback on the monitor cabinet, easy to operate, easy to achieve automatic control and remote control. First, the technical parameters: Nominal Diameter: 350-1600 mm Head: 1.5-20 m Flow: 500-45000 cubic meters / hour Power: 22-800 kW Voltage: 380 volts, 6 kV, 10 kV two conditions of use: QZB Submersible pumps are widely used in mining ship, urban drainage, agricultural irrigation, power supply and drainage purposes. Medium volume QZB Axial submersible pump for low head, high flow applications, the transmission medium for raw sewage water or mild, its high transmission fluid temperature is 50 ℃, PH value of the transmission medium 4-10, delivered more than 2 % or less, density of the medium is less than 1.2 × 103kg / m3 three, material selection: cast iron, stainless steel and the like. Fourth, the structure description: QZB submersible pump, water pump segment by the bell, impeller parts, impeller housing and guide vanes of the four parts. Submersible motors are sealed dry induction motor, the motor casing closed, the motor at the upper end of the cable outlet has a static seal, under the motor cover has a rotating shaft at the seals, submersible motor with safety and reliability can all diving operations.