Sewage pump: key equipment for urban and industrial wastewater treatment

In the development of modern cities and industries, sewage treatment is an important part of environmental protection. As an indispensable equipment in the sewage treatment system, the sewage pump undertakes the important task of transporting wastewater from low places to treatment facilities. This article will introduce the working principle, types, applications and maintenance points of sewage pumps in detail.

The basic working principle of the sewage pump is to use mechanical energy to transport wastewater from one place to another. It generates centrifugal force through the rotation of the impeller in the pump body, sucks the wastewater from the suction port of the pump, and then discharges the wastewater along the discharge port of the pump through the high-speed rotation of the impeller.
Submersible sewage pump: This pump is installed underwater and can directly extract sewage. It is suitable for deep wells, deep pools and other occasions.
Dry sewage pump: It is installed on the ground and transports sewage to the suction port of the pump through pipes.
Cut sewage pump: It has a cutting function and can handle sewage containing solid particles.
Self-priming sewage pump: It has a self-priming function and can be started without water. It is suitable for occasions with intermittent water supply.
Application areas of sewage pumps
Urban sewage treatment: used in municipal drainage systems to transport rainwater, domestic sewage, etc. to sewage treatment plants.
Industrial wastewater treatment: used in chemical, papermaking, food processing and other industries to transport wastewater containing corrosive or solid particles.

Agricultural irrigation: used to transport water sources containing sediment in farmland drainage and irrigation systems.
Construction: used on construction sites to remove water from foundation pits, tunnels, etc.
Key points for selecting sewage pumps
Flow and head: select appropriate flow and head parameters according to actual needs.
Medium characteristics: consider the corrosiveness, sand content, temperature and other characteristics of sewage, and select appropriate pump materials and structures.
Installation environment: select dry or submersible pumps according to the space and environmental conditions of the installation site.
Energy consumption and efficiency: select high-efficiency, low-energy consumption pumps to reduce operating costs.
Maintenance and maintenance of sewage pumps
Regular inspection: regularly check the operating status of the pump, including current, voltage, temperature, etc.
Cleaning and cleaning: regularly clean the pump body and impeller to prevent blockage and corrosion.
Lubrication: For dry pumps, lubricate bearings and other parts regularly.
Replace wearing parts: Replace worn seals, bearings and other wearing parts in a timely manner.
Sewage pumps play a vital role in sewage treatment in modern society. Correct selection and maintenance of sewage pumps can not only improve sewage treatment efficiency, but also reduce operating costs, which is of great significance to environmental protection. With the continuous advancement of technology, the design and performance of sewage pumps are also constantly improving to meet the growing demand for environmental protection.