Product Introduction
Generally, a constant pressure variable frequency pump group is used for water supply, with at least two or more water supply pumps installed. Each pump can be controlled by a variable frequency converter according to the water consumption, with one in use and one backup or multiple in use and one backup, running in parallel, significantly saving electricity and effectively reducing water supply costs. The built-in variable frequency converter has a high degree of automation; The equipment is mainly composed of components such as a stabilizing tank, a water pump, and a control system. Low equipment investment, small footprint, flexibility, and convenience.
Equipment Selection
1. Common pump types and applications:
Multi stage centrifugal pump: used for secondary pressurization or long-distance transportation in high-rise buildings, capable of providing high head.
Double suction centrifugal pump: used in the water supply pump room of water plants, with high flow rate and high efficiency.
Submersible pump: used for water intake or underground lifting.
2. Key configuration:
Variable frequency speed regulation: By using PLC and pressure sensors to form a closed-loop control, constant pressure water supply is achieved, and the energy-saving effect is significant (after adopting it in a 60000 ton/day water plant, the power consumption per ton decreased by 20%).
Backup pump: must be set up to ensure continuous water supply.
Soft starter: reduces the current surge during motor start-up and the "water hammer" effect on the pipeline network
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