The working principle of submersible pumps: advantages and disadvantages of submersible pumps

The working principle of submersible pumps: advantages and disadvantages of submersible pumps





A submersible pump, also known as an electric submersible pump, is a pump that can be completely submerged in water. The motor is sealed and tightly connected to the pump body.



A submersible pump is an important piece of equipment for extracting water from deep wells. When used, the whole unit dives into the water to work, extracting groundwater to the surface, and is used for domestic water, mining rescue, industrial cooling, agricultural irrigation, seawater lifting, shipload transfer, and also for fountain landscape.



The hot water submersible pump is used for hot spring bathing, and it can also be applied to extracting groundwater from deep wells, and can also be used for water lifting projects in rivers, reservoirs and canals. It is mainly used for irrigation of farmland and water for people and animals in high mountainous areas, and also for central air conditioning cooling, heat pump unit, cold pump units, drainage of cities, factories, railroads, mines and construction sites. The general flow rate can reach 5~650m³/h and the head can reach 10-550m.



A submersible pump pushes water to the surface by converting rotational energy into kinetic energy into pressure energy. This is done by drawing water into the pump: first at the inlet, where the rotation of the impeller pushes the water through the diffuser. From there, it will rise to the surface of the water.



The main advantage of a submersible pump is that it does not need to be started because it is already submerged in the fluid. Submersible pumps are also very efficient because they don't actually require a lot of energy to move the water to the pump. The water pressure pushes the water into the submersible pump, thus "saving" a lot of pump energy.



In addition, while the pumps themselves are not universal, the options certainly are. Some submersible pumps can easily handle solids, while others are only suitable for liquids. Submersible pumps are quiet because they are underwater, and cavitation is never a problem because there is no "spike" in pressure as the water flows through the pump.



Submersible pumps have some drawbacks, two of which are related to seals. Seals can corrode over time. When this happens, water can seep into the motor, making it unusable until repairs are made. In addition, the seal makes the submersible pump somewhat difficult to access for repairs.



Another major disadvantage is that one pump is not suitable for all uses. Single-stage pumps are used for most domestic and light industrial pumping. This includes aquarium filters, sump pumps, or sewage pumps for dewatering. Multi-stage pumps are used for anything underground, such as water or oil wells. In addition, pumps can be used to handle thin liquids such as water or thick liquids such as sewage.



Submersible pumps must be used with care; they must be completely submerged. The water around the submersible pump actually helps to cool the motor. If used without water, it may overheat.



Development trends

With the development of society and the increase in market demand, technological innovation is becoming more and more important. China's stainless steel submersible pumps continue to innovate the technology, the application is more and more extensive, and increasingly concerned about people.

With the continuous development of the country, the national income is increasing. Products made of stainless steel materials because of their long service life, not easy to rust, clean and sanitary, green and other excellent features have slowly into the industrial applications, stainless steel submersible pumps are among the best.

With the rapid increase in the market, stainless steel submersible pumps are facing new technical innovations. Each enterprise is also competing to launch their own killer app, and constantly improve their own R & D team, but also out of the country, to the world's advanced countries to learn their techniques, and the core production technology related to this, in order to improve the competitiveness of enterprises in is the market.

The emergence of stainless steel submersible pumps, for the use of water pumps in the process of some problems timely, proposed a solution. Compared with the traditional iron pumps, stainless steel pumps are gaining widespread attention with their special advantages.

The advantages of stainless steel submersible pumps are reflected in: safe and sanitary materials, not easy to deteriorate; long service life, not easy to rust; cost-effective, durable; green and environmentally friendly, and can achieve 100% recycling.

Stainless steel submersible pumps as the representative of the pump products are leading the entire pump industry to continue to move forward, and with this driven by the raw material market, the new stainless steel materials continue to come out. Various patented technologies and norms continue to improve and are constantly driving the entire industry chain toward a higher, more orderly goal, but also look forward to stainless steel sewage pumps as the first pump products out of the country, in the world on a larger stage to play the pride of Made in China.

In today's era, green environmental protection has become a hot topic, I believe that with the continuous innovation of technology, stainless steel submersible pumps will have better development in the future.



At Hebei KATI Machinery Sales Co. Ltd. we have a wide selection of submersible pumps and other pumps to choose from. We are happy to recommend the right pump for your needs. Please check out our website.

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