Comparative analysis between vacuum preloading submersible pumps and traditional submersible pumps?

Comparative analysis between vacuum preloading submersible pumps and traditional submersible pumps?

Vacuum preloading submersible pumps and traditional submersible pumps are two main types of submersible pumps, which have some differences in design structure, working principle, performance indicators, and other aspects. This article will compare and analyze these two types of submersible pumps.

In terms of design structure, vacuum preloading submersible pumps are different from traditional submersible pumps. A vacuum preloading technology has been introduced in the design of a vacuum preloading submersible pump. By installing a vacuum preloading device in the pump body, the water level at the inlet is lowered, reducing the pump's suction on water. This design can effectively reduce the pressure on the pump, reduce the starting load of the water pump, and improve the working efficiency of the pump. Traditional submersible pumps do not have this vacuum preloading configuration.

Secondly, the working principle is also different. The vacuum preloading submersible pump reduces the suction force of the pump by using a vacuum preloading device, lowers the water level before suction, reduces the starting pressure on the pump, reduces the power loss of the pump, and improves the working efficiency of the pump. Adopting this working principle can reduce the starting current of the pump and extend its service life. Traditional submersible pumps only use traditional working principles and require a large amount of current during startup, which can easily lead to power loss.

Furthermore, there are certain differences in performance indicators. Vacuum preloaded submersible pumps have high pumping efficiency, and their suction speed is much higher than traditional submersible pumps. This pump is suitable for working fluids with high density, high viscosity, or suspended particles, and can operate normally under conditions with significant changes in liquid level height. However, traditional submersible pumps have poor pumping performance under these operating conditions, which may lead to problems such as poor water absorption and low pumping capacity.

In addition, in terms of maintenance, vacuum preloading submersible pumps are relatively simple. Due to the low current during startup of the vacuum preloaded submersible pump, it can reduce motor wear and prolong the service life of the motor. However, traditional submersible pumps need to withstand a large current during startup, which can easily cause problems such as motor overload and increase the difficulty of maintenance.