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Submersible sewage pump is a pump and motor Siamese, and at the same time into the submerged work of the pump products, compared with the general horizontal pump or vertical sewage pump, submersible sewage pump obviously has the following The advantages. What are the advantages and disadvantages of submersible sewage pump? 1. Compact structure, small footprint. Submersible sewage pump submersible work, so can be installed directly in the sewage tank, without the need to build a dedicated pump room for the installation of pumps and machines, you can save a lot of land and infrastructure costs. 2 installation and maintenance easy. Small submersible sewage pump can be freely installed, large submersible sewage pumps are generally equipped with automatic coupling device can be automatically installed, installation and maintenance quite convenient. 3. Continuous operation for a long time. Sewage pump due to pump and motor coaxial, short shafts, rotating parts light weight, so the bearing load (radial) is relatively small, life expectancy much longer than the average pump. 4. There is no cavitation damage and irrigation water and other issues. Especially after the point to the operator has brought great convenience. 5. Vibration noise, low motor temperature, pollution-free environment. It is because of the above advantages, sewage pump has been more and more people's attention, the use of a more and more wide range from the original purely for the transport of fresh water to the present can transport a variety of domestic sewage, industrial wastewater, construction sites Drainage, liquid feed and more. In municipal engineering, industry, hospitals, buildings, restaurants, water conservancy construction plays a very important role in all walks of life. But everything is divided into two parts, the most critical issue for the sewage pump is the reliability issue, because the sewage pump is used under the liquid occasions; the medium is transported with some mixed liquid containing solid materials; pump and The motor is in close proximity; the pump is upright and the weight of the rotating part is in the same direction as the impeller is subjected to water pressure. These problems make the sewage pump in sealing, motor carrying capacity, bearing arrangement and selection requirements than the average sewage pump is higher. In order to improve the life of the sewage pump, most manufacturers at home and abroad are now on the pump protection system think of a way that the pump leaks, overload, over temperature and other failures can automatically alarm and automatically shut down for repair. However, in our opinion, it is necessary to set up a protection system in the sewage pump, which can effectively protect the safe operation of the electric pump. However, this is not the crux of the problem. The protection system is only a remedy after a pump failure. It is a relatively passive approach. The crux of the problem should be from the very beginning, to completely solve the pump in the sealing, overload and other issues, this is a more proactive approach. To this end, we apply the sub-impeller hydrodynamic sealing technology and pump no-overload design technology to the submersible sewage pump, greatly improving the pump seal reliability and carrying capacity and prolonging the service life of the pump. (Editor: Yunhai QQ:) Recommended reading: 2017 Exhibition Information Submersible sewage pump structure and structural features