Constant pressure variable frequency water supply equipment is an intelligent water supply system that integrates variable frequency speed regulation technology, automation control technology, and fluid mechanics principles. The frequency conversion control cabinet includes a frequency converter, PLC controller, pressure sensor, etc. It is the control core of the equipment. The water pump unit is composed of multiple main pumps and backup pumps, and is the power source of the water supply system. The steady flow tank is used to buffer pressure fluctuations and store water volume. Some equipment is also equipped with vacuum suppressors to prevent negative pressure. The valve system includes check valves, butterfly valves, etc., which together with the pipeline form a complete water supply network. The constant pressure variable frequency water supply equipment has the characteristics of high efficiency and energy saving, and can fully utilize the original pressure of the municipal pipeline network. Compared with traditional water supply methods, it can save 30% -70% energy. The water supply is stable, and through variable frequency closed-loop control, the pressure fluctuation range can be controlled within 1MPa. The water quality is safe, and it operates in a fully enclosed manner. It uses food grade stainless steel material to prevent secondary pollution and has a high degree of automation. It has full automatic operation capability, can achieve unmanned operation, and supports remote monitoring and data transmission.
The working principle of the constant pressure variable frequency water supply equipment is that the pressure sensor monitors the pipeline pressure in real time and transmits it to the PLC controller. The controller compares the measured pressure with the set pressure, and the frequency converter automatically adjusts the frequency of the water pump motor based on the pressure value, thereby adjusting the water pump speed and changing the water supply volume. If a single water pump cannot meet the pressure demand, the system will automatically start the backup pump.
Constant pressure variable frequency water supply equipment is widely used in civil buildings, industrial production, municipal and public facilities, such as residential water, cooling water for manufacturing production lines, and secondary pressurization of water plants.
Post time: Oct-13-2025