Ultra -supercritical thermal power generating unit is heating system as occasion requires

The utility model provides an ultra -supercritical thermal power generating unit is heating system as occasion requires, including the cold section of coal -fired power unit reheat, connecting pipe, high pressure feed water heater, the water supply connector, the outlet pipe, the condenser, electric check valve, manually operated door and electrical control door, cold section of connecting pipe intercommunication coal -fired power unit reheat and high pressure feed water heater, electric check valve, manually operated door and electrical control door are installed on the connecting pipe, the switch -on of water supply connector and high pressure feed water heater. The utility model discloses utilize the cold section steam of adjacent coal -fired power unit reheat for heating vapour source,to use local high pressure feed water heater be interim heater, improves the feed water temperature who gets into the boiler, reduced the boiler and lighted a fire to the hot oil usage who finishes the period that washes fro