The pipe network superimposed water supply equipment connects the equipment directly to the municipal water supply pipe network, and can use the original pressure of the municipal pipe network to superimpose water supply, so as to realize the secondary pressurized water supply for high-lift buildings or other occasions requiring high-lift.

When the equipment is working, it detects the change of inlet water pressure by monitoring the pressure sensor on the inlet side. Once it is lower than the set value, immediately stop the operation or use a backup water source for water supply to prevent negative pressure; monitor the outlet pressure by the outlet pressure sensor Measure and compare this value with the set value. The PID controller inside the control cabinet adjusts the performance of the system when the flow changes to ensure that the outlet discharge pressure matches the set value. Correspondingly, a constant system output pressure is maintained, thereby realizing a constant pressure secondary water supply for high-lift buildings.