The difference between submersible sewage pump and general sewage pump

Submersible sewage pump is a pump and motor connected, and at the same time submerged into the liquid pump products. It is compared with a general horizontal sewage pump or a vertical sewage pump. Submersible sewage pumps have the following advantages:

1. It does not have problems such as cavitation damage and irrigation of water. In particular, the latter point brings great convenience to the operators.

2. Small vibration and noise, low motor temperature, no pollution to the environment.

3 compact structure, small footprint. The submersible sewage pump works because it is submerged. Therefore, it can be directly installed in the cesspool, and there is no need to build a special pump room to install pumps and machines, which can save a lot of land and infrastructure costs.

4. Easy installation and maintenance. Small submersible sewage pumps can be installed freely. Large submersible sewage pumps are generally equipped with automatic coupling devices for automatic installation and installation and maintenance are very convenient.

5. Long running time. Submersible sewage pump Because the pump and the motor are coaxial, the shaft is short and the rotating parts are light. Therefore, the load (radial) on the bearing is relatively small, and the service life is much longer than that of a general pump.

It is because of the above advantages that submersible sewage pumps have received more and more attention. The scope of use is also becoming wider and wider, from the original purely used to transport clean water to the present, it can transport a variety of domestic sewage, industrial wastewater, construction site drainage, liquid feed, and so on.

It plays a very important role in various industries such as municipal engineering, industry, hospitals, architecture, restaurants, and water conservancy construction.

But everything is divided into two. The most critical issue for submersible sewage pumps is reliability. Because the submerged sewage pump is used under the liquid; the transport medium is some mixed liquid containing solid materials; the pump and the motor are in close proximity. The pump is a vertical arrangement with the weight of the rotating part in the same direction as the impeller is subjected to water pressure. These problems make the requirements of the submersible sewage pump in terms of sealing, motor bearing capacity, bearing arrangement and selection, etc. higher than that of a general sewage pump.