| 摘要 |
A sewage draining, deaerating, and water feeding system for a steam boiler, comprising a thermal sewage draining and deaerating water tank (101), a thermal sewage draining soft water tank (102) and a sewage connecting pipeline (103). A first heat exchanger (126, 226) is arranged inside the thermal sewage draining soft water tank (102); and a second heat exchanger (127, 227) is arranged inside the thermal sewage draining and deaerating water tank (101). The first heat exchanger (126, 226) is in communication with the second heat exchanger (127, 227) via the sewage connecting pipeline (103). An outlet (110) of the thermal sewage draining soft water tank (102) is in communication with an inlet (117) of the thermal sewage draining and deaerating water tank (101) via a water pipe (109). By the system, the heat in the drained sewage after expansion and flashing can be used. |
