| 摘要 |
A combined central-heating and water-heating boiler, in which the boiler body comprises a heat exchanger (1) formed from aluminum or an aluminum alloy, the heat exchanger comprising a flue (15) and a central-heating water section comprising a serpentine or zig-zag central-heating water channel (2), said flue and said water section being separated by a dividing wall, wherein spaced-apart pairs of connections for the suction and delivery sides of two pumps (5,6) are provided in the water section of the heat exchanger, while in each pair of connections the suction (32,42) and delivery (3P,4P) connections of the pumps (5,6) are separated from each other by partitions (3,4). In further elaboration, from the flue gas side of the heat exchanger, the pumps are connected to the water section at the discharge end of the flue gas section, at which discharge end they take the place of heat-absorbing projections. <IMAGE> |
