Novel deaerator water supplementing system

The utility model discloses a novel deaerator water supplementing system. The device comprises a boiler steam-water sampling cooler, a drain tank, a drain pump and a deaerator, the cooling water end of the boiler steam-water sampling cooler is connected with a drain tank through a pipeline; the drain tank is connected with a drain pump through a pipeline; the drainage pump is connected with a deaerator through a pipeline; the cooling water end of the boiler steam-water sampling cooler is connected with a condenser hot well through a bypass pipeline, the condenser hot well is connected with a condensate pump through a pipeline, the condensate pump is connected with a steam seal heater through a pipeline, the steam seal heater is connected with a low-pressure heater through a pipeline, and the low-pressure heater is connected with a deaerator. The novel deaerator water replenishing system is reasonable in design, simple in structure and suitable for a thermal power plant which supplies steam to the outside, wat