Heat supply pipe network with water replenishing device

The utility model discloses a heat supply pipe network with a water replenishing device, and relates to the technical field of heat exchange station equipment. The system comprises a heat exchanger at a heat exchange station end, a first-stage water supply pipe, a first-stage water return pipe, a second-stage water supply pipe, a second-stage water return pipe, a water replenishing tank, a water replenishing pump, a controller at a control chamber end, a water replenishing pipe, a first valve for manually adjusting the water replenishing pipe to be conducted or cut off, a pressure reducing valve and a second valve for controlling the water replenishing pipe to be conducted or cut off, one end of the water replenishing pipe is connected and communicated with the first-stage water return pipe, the other end of the water replenishing pipe is connected and communicated with the water replenishing tank, the first-stage water return pipe, the first valve, the pressure reducing valve, the second valve and the water