Submersible sewage pump knowledge

Sewage pump is a kind of pump and motor connected, and at the same time submerged into the liquid pump products, compared with the general horizontal pump or vertical sewage pump, sewage pump compact structure, small footprint. Easy installation and maintenance The small sewage pump can be freely installed. Large sewage pump is generally equipped with an automatic coupling device for automatic installation, installation and maintenance is very convenient, and continuous operation for a long time. The sewage pump is coaxial with the pump and the motor. 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. There are no problems such as cavitation damage and flooding. In particular, the latter point brings great convenience to the operators. Small vibration and noise, low motor temperature rise, no pollution to the environment.

The flow rate of the sewage pump shall be selected according to the second flow rate of the life drainage design; when there is a displacement adjustment, the flow rate may be selected according to the maximum hour of the daily life drainage. The flow rate of the drainage pump in the fire elevator collection basin shall not be less than 10L/s. In the public building, a spare pump should be installed in each unit of the living drainage collection basin, which should be operated in an interactive manner. The drainage of the basement, equipment room, and garage flushing floor may not be pumped if there are two or more sewage pumps. The head of the sewage pump is determined according to the lifting height and pipe loss, and then a certain free head is attached. Free head should use 0.02 ~ 0.03MPa.

Sewage collection tanks using submersible sewage pump drainage, submersible sewage pump fixed auto-coupling device should be set to facilitate submersible sewage pump maintenance. Submersible sewage pumps should be able to start and stop automatically and manually start and stop on site. Multiple submersible sewage pumps can be operated in parallel or alternately.

Submersible sewage pump is a kind of pump and motor connected together, and at the same time submerged into the liquid pump products, compared with the general horizontal pump or vertical sewage pump, submersible sewage pump has obvious advantages in the following aspects:

1. Compact structure, small footprint. The submersible sewage pump can be directly installed in the sewage pool because it is submerged under the liquid. There is no need to build a special pump room to install the pump and the machine, which can save a lot of land and infrastructure costs.

2. 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.

3. 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.

4. There are no problems such as cavitation damage and flooding. In particular, the latter point brings great convenience to the operators.

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

Due to the above advantages, submersible sewage pumps have attracted more and more attention from people, and the scope of use has also become wider and wider. From the original purely used to transport clean water to the present, various submersible sewage, industrial wastewater, and construction can be transported. Site drainage, liquid feed, etc.