Products Description
Submersible Sewage Pump Dirty Water Pump For Waste Water Drainage
1.It can be used throughout the entire operating range while ensuring that the motor does not overheat.
2. The float switch can automatically control the start and stop of the pump according to the changes in water level, eliminating the need for constant supervision by a dedicated person.
3. The dual-guide rail automatic installation system greatly facilitates installation and maintenance. It eliminates the need for personnel to enter and exit the sewage pit.
4. Utilizing advanced technology, it has strong sewage treatment capacity, no blockage, and can effectively pass through solid particles with diameters ranging from φ30 to φ80 millimeters.
5. The tearing mechanism can tear and cut the fibrous materials, and then discharge them smoothly without the need to install a filter screen on the pump.
6. The design is reasonable, and the motor power is small, resulting in remarkable energy-saving effects.
7. The fully automatic protection control box effectively protects the product against leakage, water ingress, and overloading, thereby enhancing the safety and reliability of the product.
8.The mechanical seal, made of the latest materials, can enable the pump to operate safely and continuously for more than 8,000 hours.
9. Compact structure, convenient for movement, simple to install, can reduce engineering costs, and no need to build a pump room.
The future development trend of submersible pumps
Submersible Sewage Pump Dirty Water Pump For Waste Water Drainage
In order to extend the service life of the sewage pump, most manufacturers at home and abroad are currently seeking solutions for the protection system of the pump. That is, when the pump experiences faults such as leakage, overload, or overheating, it can automatically issue an alarm and automatically stop to undergo maintenance. However, we believe that it is very necessary to set up a protection system in the sewage pump. It can effectively ensure the safe operation of the electric pump.
But this is not the crux of the matter. The protection system is merely a remedial measure taken after the pump malfunctions, and it is a rather passive approach. The key to the problem should be to start from the root and completely solve the issues such as the pump's sealing and overload problems. This is a more proactive solution.
Therefore, we applied the peripheral vane rotor body dynamic sealing technology and the pump's overload-free design technology to the submersible sewage pump, which significantly improved the pump's sealing reliability and load-bearing capacity, and extended the pump's service life.
Design concept of submersible sewage pumps
In a typical centrifugal pump, power always increases as the flow rate increases. That is to say, the power curve is a curve that rises as the flow rate increases. This brings a problem for the use of the pump: when the pump operates at the design point, generally speaking, the pump's power is less than the motor's rated power, and the use of this pump is safe; however, when the pump's head decreases, the flow rate will increase (as can be seen from the pump's performance curve), and the power will also increase accordingly.
When the flow exceeds the design flow rate and reaches a certain value, the input power of the pump may exceed the rated power of the motor, causing the motor to overheat and burn out. When the motor is operating under overload conditions, either the protection system will act to stop the pump from rotating; or the protection system will fail, causing the motor to burn out.
The situation where the pump's head is lower than the designed operating point head is quite common in practice. One scenario is that during pump selection, the pump's head is set too high, but during actual use, the pump operates with a reduced head; another situation is that the operating point of the pump is difficult to determine during use, which means the pump's flow rate needs to be frequently adjusted; and yet another situation is that the pump needs to be used at different locations frequently. These three situations may cause the pump to overwork and affect its reliability in use.
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