Water supply system

The invention provides a water supply system. The water supply system is applied to a reactor and comprises a water storage device, a first water inlet pipe, a first water outlet pipe, a first water pumping pipeline, and a second water pumping pipeline, wherein the first water inlet pipe is used for communicating with the water storage device; the first water outlet pipe communicates with the reactor; the two ends of the first water pumping pipeline communicate with the first water inlet pipe and the first water outlet pipe correspondingly, and a first water feeding pump is arranged in the first water pumping pipeline; the second water pumping pipeline is connected with the first water pumping pipeline in parallel, and a second water feeding pump is arranged in the second water pumping pipeline; and the maximum flow of the first water feeding pump is smaller than that of the second water feeding pump. According to the water supply system provided by the embodiment, the problem of inaccurate flow regulation in