Well Submersible Pump
Ganquan brand QJ, QJT series submersible electric pump (deep well pump) is an important water lifting tool for the direct integration of electric motor and water pump into the water. It is widely used to extract groundwater from deep wells, and can also be used for rivers, reservoirs, canals, etc. Water lifting project. It is mainly used for irrigation of farmland and water for humans and animals in plateau mountainous areas. It can also be used for water supply and drainage in cities, factories, railways, mines and construction sites. In addition, the company can produce special-purpose submersible pumps such as seawater and mines according to user needs. The utility model has the advantages of compact structure, small volume, light weight, convenient installation, use and maintenance, safe and reliable transportation, energy conservation and the like.
First, technical parameters:
Size: 6-12 inches
Flow rate: 5-600 cubic meters / hour
Head: 6-600 meters
Power: 3-250 kW
Power supply: voltage 380V + 5%, frequency 50Hz + 1% Hertz, three-phase AC.
Production standards: NEMA standards, national standards, enterprise standards.
Second, the conditions of use:
1. The water inlet section must be immersed below the moving water level (1~3) meters, generally (2~3) meters.
2. The temperature is not higher than 20 degrees Celsius.
3. The amount of sand (weight ratio) in water does not exceed 0.01%.
4. The pH of the water in the water is 6.5 ~ 8.5.
5. The water does not contain oil.
6. The content of hydrogen sulfide is not more than 1.5mg/L.
7. The chloride ion content is not more than 400mg/L.
Third, the material selection:
1. Impeller: cast iron or tin bronze.
2. Pump casing: cast iron or stainless steel.
3. Pump shaft: cold drawn steel chrome or stainless steel.
4. Motor seal: rubber seal, O-ring, mechanical seal.
Fourth, the structure description:
The whole submersible pump of the well consists of the working part of the pump, the submersible motor, the pipeline part (including the water pipe, the pump seat, etc.), the cable, the gate valve and the control cabinet. The pump and the motor are directly connected to each other through the coupling to work in the water.
1. The pump working part is the core of the unit. It consists of impeller, middle shell, upper shell, pump shaft, bearing, water inlet section, check valve and valve body.
2. The submersible motor is the power source for the unit. It consists of stator, rotor, upper and lower guide bearings, thrust bearing, base, connecting frame and sealing device.