BWS-WD is a specialized water supply equipment for regulating and storing non negative pressure booster pump stations. It is directly connected to the urban water supply network and utilizes the pressure of the urban water supply network. At the same time, it can expand the water tank regulation and storage water supply function, adjust flow and stabilize water supply, and eliminate water hammer. It is a water supply equipment composed of intelligent stable flow compensation tank, intelligent active compensation and regulation device, energy converter, water hammer elimination device, water pump unit, control cabinet, valves, pipeline system, supporting accessories, etc.