A submersible pump is also called a centrifugal pump. Today we will use 3D animation to understand how it works. The principle is actually very simple. When the motor starts, the rotating central long axis drives the impeller to rotate. Negative pressure is generated in the pump. Water is sucked into the pump, and then pressurized by the diffuser. The water has power, so that the water flows out continuously.
As usual, we dismantled the submersible pump. If you look at the big solid body on the left, it is the motor, which provides surging power for the pump. Looking at the long axis in the center, driven by the motor, it turns with a word of life. Then look at the four small discs on the right shaft, which are the impellers. They rotate constantly like the central shaft, but the submersible pump has a special structure, which can pressurize the water step by step. How exactly does the submer sible pump work? Immediately, the blades of the impeller spiral and the water is centrifuged.
The force is thrown to the side of the impeller, just like this, careful little friends may ask who how to move to the right? At this time, a component called the diffuser is needed. Note that the flow section of the submersible pump is gradually expanded. After the water enters, the flow rate becomes smaller and the pressure naturally increases. In this way, the water comes to the second-stage impeller. Similarly, the water is pressurized twice, and after four stages of pressurization in turn, it is thrown out of the pump mouth. So far, the pump has completed its mission.
Is there something else at the outlet? It is a command valve, mainly to prevent water backflow and protect the pump body from the reverse impact of water. This impact has a scientific name, and those who know it can leave a message in the comment section. Some friends may ask if the motor will not break down in the water? Actually no, the motor is designed with strict waterproof design, so don’t worry about it. In addition, there is a small impeller at the end of the motor, which is used to circulate the coolant to ensure that the motor will never overheat.We hope that this content will give you a clear understanding of how submersible pump works. If you like it, you can follow the author, and the follow-up will be more exciting.
