Pressure maintaining and water supplementing device for secondary pipe network of heating station

The utility model relates to the technical field of pressure-maintaining water replenishing devices, in particular to a pressure-maintaining water replenishing device of a secondary pipe network of a heating station, which comprises a water storage tank body, a water pump is fixedly connected to the left part of the upper end of the water storage tank body, a water inlet pipe is fixedly connected to the rear part of the upper end of the water storage tank body, and the water inlet pipe extends into the water storage tank body. The right portion of the upper end of the water storage tank body is fixedly connected with a heating device, the outer surface of the water storage tank body is fixedly connected with an outer heat preservation device, the lower end of the water storage tank body is fixedly connected with four supporting legs, and the four supporting legs are obliquely arranged and annularly distributed at equal intervals. According to the pressure maintaining and water supplementing device for the sec