What are the advantages of submersible sewage pumps?

Submersible sewage pump is a type of pump product that is connected to a motor and operates underwater together. It can tear and block substances such as long fibers, bags, belts, grass, and cloth strips in sewage, and then discharge them smoothly. It is particularly suitable for transporting liquids containing hard solids, fiber materials, and especially dirty, sticky, and slippery liquids

Compared with horizontal or vertical centrifugal pumps, submersible sewage pumps have the following advantages:

1) Compact structure and small footprint, submersible sewage pumps can be directly installed in sewage tanks due to their underwater operation, without the need for specialized pump rooms for pump and machine equipment, which can save a lot of land and infrastructure costs

2) Easy equipment repair, small submersible sewage pumps can be freely installed, while large submersible sewage pumps are generally equipped with active coupling devices for active equipment, making equipment and repair appropriately convenient

3) The submersible sewage pump has a long continuous working time. Due to the coaxial pump and motor, the shaft is short, and the rolling components are lightweight, the load (radial) received on the bearings is relatively small, and the service life is much longer than that of ordinary pumps

4) There is no problem of cavitation damage or water injection, especially the latter point brings great convenience to operators

5) Low vibration noise, low motor temperature rise, and no pollution to the environment

It is precisely because of the above advantages that the scope of application is becoming wider and wider. Shanghai SuNeng Pump Valve technicians will briefly explain the precautions when using:

Before starting work, use a megohmmeter to check the insulation resistance of the motor stator winding to ground, which should not be less than 1 megohm

2. Check the cable for any damage, breakage, or other phenomena If there is any damage, it should be replaced in a timely manner to avoid leakage. The cable cross-section should match the current

To ensure safe use, the grounding wire in the four core cable must be firmly grounded to prevent electric shock accidents

When the submersible sewage pump is submerged in water, it should be lifted straight and not allowed to be placed horizontally on the ground, let alone fall into the sludge When stopping use, lift the pump for cleaning, place it in a dry place, and pay attention to antifreeze

5. It is strictly prohibited to use cables as lifting ropes for equipment

Check the working direction of the rotor, which should be clockwise when viewed from top to bottom

When moving the submersible sewage pump, the power supply must be blocked, and people must not touch the water source while the electric pump is working to prevent electric accidents

8. It is prohibited to operate the motor with a missing phase. If the fuse is found to be blown, the cause should be investigated before it can be used continuously. The fuse should not be thickened arbitrarily

When the submersible sewage pump is working, there should be a dedicated person to manage it. If any abnormal phenomena are found, the machine should be stopped immediately for inspection and troubleshooting

After six months of normal operation under the 10 rule working medium conditions, the sealing condition of the oil chamber should be checked. If the oil in the oil chamber is emulsified or water is deposited, the mechanical oil and mechanical seal should be replaced in a timely manner