What is a submersible sewage pump?

Sewage treatment is an indispensable task in modern urban construction, and a submersible sewage pump is one of the important pieces of equipment. As a piece of mechanical equipment that can pump wastewater from low to high, a submersible sewage pump plays a vital role in urban sewage treatment. This article will introduce the principle, structure, application, selection, and maintenance of submersible sewage pumps in detail.

• Principle of submersible sewage pump

A submersible sewage pump is a mechanical device that pumps wastewater from a low place to a high place. Its principle is to use an electric motor to drive the impeller to rotate, so that the liquid forms a negative pressure area under the action of centrifugal force and impeller, thereby sucking in the wastewater at the bottom and discharging it through the sewage outlet.

• The structure of the submersible sewage pump

The submersible sewage pump is mainly composed of a motor, a casing, an impeller, an inlet pipe, an outlet pipe, etc. The motor is the core component of the entire device, which drives the impeller to rotate to pump water. The inlet pipe and the outlet pipe are connected to the sewage at the bottom and the drainage pipe above, respectively, to transport liquids.

• Application of submersible sewage pumps

Submersible sewage pumps are widely used in urban sewage treatment, industrial wastewater treatment, farmland irrigation and other fields. In urban sewage treatment, submersible sewage pumps are mainly used to pump underground sludge, wastewater, etc. to ground treatment sites. In industrial wastewater treatment, different types of submersible sewage pumps can be selected according to different treatment requirements.

• How to choose a submersible sewage pump

When choosing a submersible sewage pump, you need to consider the following aspects:

1. Flow rate: the maximum liquid flow rate through the submersible sewage pump per unit time, usually in cubic meters per hour.

2. Head: the height difference that the liquid needs to overcome from the inlet to the outlet.

3. Material: factors such as the type, viscosity, and temperature of the conveyed liquid need to be considered.

4. Environment: whether the installation environment is flammable and explosive, whether it is corrosive, etc. needs to be considered.

5. Maintenance: the equipment operating cost and maintenance difficulty need to be considered.

• Maintenance of submersible sewage pumps

In order to ensure the normal operation of submersible sewage pumps, regular maintenance is required. Specific measures include:

1. Regularly check whether the motor, impeller, seal, and other components are damaged.

2. Clean the debris and sludge in the inlet and outlet pipes.

3. Regularly replace lubricating oil and seals.

4. Avoid long-term dry operation or idling during use to avoid damage to the equipment.