Factory supply 0.75KW~18.5KW constant pressure water supply control box VFD variable frequency control cabinet distribution box

The constant pressure water supply control box VFD variable frequency control cabinet is an automated equipment used to maintain a constant water pressure, which combines variable frequency technology and the control logic of a constant pressure water supply system.

The main function of the constant pressure water supply control box is to ensure that the water pressure in the water supply system is maintained at the set constant value. This is usually achieved through closed-loop control systems, where the frequency converter plays a crucial role. The frequency converter receives feedback signals from pressure sensors and adjusts the speed of the water pump based on this signal to maintain a constant water pressure. This control method can reduce pressure deviation, improve system efficiency and stability.

In a constant pressure water supply system, PLC (programmable logic controller) is usually used to control the number of water pumps powered by the power frequency power supply based on the outlet pressure of the pipeline. The PLC provides start and stop commands to the frequency converter through switch output signals, and performs rough adjustment on the total water supply of the pumping station. This system configuration can effectively respond to different water supply needs while ensuring the continuity and stability of water supply.