Variable frequency constant pressure water supply equipment uses variable frequency speed regulation to achieve variable frequency water supply. Compared with using regulating valves to achieve constant pressure water supply, the energy-saving effect is very significant (which can be calculated according to specific situations).

Its advantages are:

a、 Starting balance, the starting current can be limited within the rated current, thus avoiding the impact on the power grid during starting;

b、 Due to the decrease in the average speed of the pump, the service life of the pump and valves can be extended;

c、 Can eliminate the water hammer effect during start-up and shutdown;

working principle:

According to user requirements, the water supply pressure value is first set, and then powered on for operation. The pressure sensor monitors the pipe network pressure and converts it into an electrical signal, which is sent to a programmable controller or microcomputer controller. After analysis and processing, the signal is transmitted to a frequency converter to control the operation of the water pump. When the water consumption increases, the output voltage and frequency increase, the water pump speed increases, and the water output increases. When the water volume decreases, the water pump speed decreases, reducing the water output and maintaining the set pressure value of the pipe network. When multiple pumps are running, each pump is soft started, and the frequency converter is converted to power frequency until the pressure and flow meet the requirements, realizing the cyclic control of the water pump. When running at low flow rate at night, the water pump can be maintained by the frequency converter. The frequency converter water supply pump can be stopped to maintain pressure.

Application scope

1. Newly built residential communities, villas, office buildings, and comprehensive buildings provide living water supply.

2. Domestic water supply for high-rise buildings, fire water, high-end hotels and restaurants, etc.

3. Renovation of traditional water supply systems such as pressurized water supply and ground water tank pressurization.

4. Various boiler cold water supply systems and boiler hot water.

5. The intermediate booster pump station of the water plant and the secondary boosting of tap water.

6. The production, domestic water supply, and pipeline network stabilization of various industrial and mining enterprises.

7. Various types of circulating water and cooling water supply systems.

8. The pressure of tap water cannot meet the requirements for pressurized water supply for daily life and fire protection.