1. The difference between submersible pumps and deep well pumps
Both submersible pumps and deep well pumps are submersible pumps that are submerged underwater. They have the same working principle but different structures. The submersible pump is a single-stage impeller with a small head, a large pump body and low power. The motor and impeller are combined into a whole through a mechanical seal, and the whole works underwater, which is suitable for pumping in large spaces. The deep well pump, also called the deep well submersible pump, is a multi-stage pump with a large head, a small and long pump body, suitable for small-diameter deep wells, and relatively large power. The quality of the deep well pump is relatively better.
2. The difference between submersible pumps and centrifugal pumps
1. Different working principles
The principle of the submersible pump is like an electric fan, pump and electric mechanism immersed in water, and the conveying medium is water.
The centrifugal pump is designed based on the principle of centrifugal force. The rapidly rotating impeller blades drive the liquid to rotate and throw the liquid out, thereby achieving the purpose of conveying. There are many media that can be conveyed, such as oil, water, chemicals, etc.
2. Different installation locations
Submersible pumps are used for diving, and centrifugal pumps are used for ground pump rooms.
3. Different uses
Centrifugal pumps can be widely used in the power, metallurgy, coal, building materials and other industries to transport slurries containing solid particles. Such as hydraulic ash removal in thermal power plants, slurry transportation in metallurgical ore dressing plants, slurry transportation in coal dressing plants, heavy medium transportation, etc.
Submersible pumps are mainly used for farmland irrigation and water for people and livestock in mountainous areas. They can also be used for central air conditioning refrigeration, heat pump units, cold pump units, cities, factories, railways, mines and construction sites.
Drainage.
4. Different structures
Centrifugal pumps are composed of impellers, pump bodies, pump covers, water retaining rings, pump shafts, bearings, sealing rings, stuffing boxes and axial force balancing devices.
Submersible pump units are composed of control cabinets, submersible cables, risers, submersible pumps and submersible motors.




