The submersible pump drives the impeller to rotate through the motor, uses the centrifugal force to suck water into the pump body and discharge it through the outlet to achieve water transportation. It has a simple structure, stable performance, and is easy to use. It is one of the important equipment for deep well water extraction.
Basic structure of submersible pump
- Pump body part: The pump body part includes key components such as the guide shell, impeller, pump shaft, and water inlet bracket;
- Motor part: The motor part includes the motor rotor, motor stator, motor shaft, etc;
Working principle of submersible pump
- Power supply: The submersible pump is powered by the power supply to drive the motor part to work.
- Motor rotation: After the motor part is started, the motor rotor starts to rotate.
- Impeller rotation: The rotation of the motor drives the impeller to rotate. There are multiple blade cavities inside the impeller. When the impeller rotates, the water is subjected to the centrifugal force through the rotation of the impeller, generating pressure.
- Water suction and discharge: During the rotation of the impeller, water is sucked into the suction hole of the pump body, and is pushed outward as the impeller rotates, and discharged through the outlet of the pump body. At this time, a vacuum low-pressure zone is formed at the center of the blade, and the liquid in the liquid pool continues to be sucked into the pump body under the action of atmospheric pressure, forming a continuous pumping process.
Performance parameters of submersible pumps
The performance parameters of submersible pumps include flow rate, head, pump speed, matching power, rated current, efficiency, outlet pipe diameter, etc. Generally speaking, the flow rate of a submersible pump can reach 5~650m³/h, and the head can reach 10-550 meters. It depends on the specific usage scenario to choose different heads and flow rates.
Features of submersible pumps
- Small size and light weight: Since the submersible pump is installed vertically, it is small in size and light in weight, which is very convenient for transportation and installation.
- Low noise and long service life: The motor and pump body of the submersible pump are integrated, so it has low noise and long service life.
- High pumping efficiency: The special design of the submersible pump body can improve the pumping efficiency and make the pump output larger.
- Anti-corrosion and anti-wear: Submersible pumps are usually made of stainless steel and have good anti-corrosion and anti-wear properties
- Automatic control: Submersible pumps are usually equipped with automatic control systems that can automatically control start and stop and water level.
- Versatility: Submersible pumps can be used for different purposes, such as sewage discharge, irrigation, water supply and other occasions.
Application scenarios of submersible pumps
Submersible pumps are widely used in farmland irrigation, water for human and livestock in mountainous areas, central air conditioning cooling, heat pump units, cities, factories, railways, mines, construction site drainage and other fields. At the same time, it can also be used in fountain landscapes, hot spring bathing and other occasions.
Precautions for the use of submersible pumps
Before using a submersible pump, you need to read the instructions carefully to understand the performance parameters and usage of the pump.
Submersible pumps require regular maintenance and care during use to ensure the normal operation of the pump.
When installing a submersible pump, you need to choose a suitable installation method (such as vertical, inclined or horizontal) according to the actual situation, and ensure that the pump body is completely submerged in water for work.
