| 摘要 |
<p>The invention relates to a condensing boiler for heating with a heat-conveying liquid, comprising an inverted burner (1) in the top part of the boiler above a heat exchanger (2) in which the heat- conveying liquid circulates and which is formed from a plurality of interconnecting stages, each stage having one or more tubes (A to N), so as to form a liquid-circulation length which increases moving upwards from one stage to the other, while the inlet (21) for the liquid to be heated is connected to the bottommost stage, and the outlet (22) for the heated liquid is connected to the uppermost stage, and a collection chamber (3) for the condensates and the combustion gases is arranged beneath the said exchanger (2). The boiler according to the invention is notable in that the stages interconnect such that the flow of the heat-conveying liquid is split, relative to the flow supplying the boiler, in at least some of the tubes of at least some of the stages furthest from the burner, whereas the flow is situated in its entirety in all the tubes (J to N) of at least the stage closest to the burner. <IMAGE></p> |
