| 摘要 |
The invention concerns a heating boiler using condensing gas consisting of a shell (11), comprising a heat-transferring fluid (66), and a mobile burner (1) for flameless radiating combustion, formed of at least three convex and perforated combustion surfaces (2, 2', 2", 2"'), between which are layers of small elements of active materials (4), and which is fixed in the central rod (3) inserted sliding in the tube (11) flange (22). The central rod (3) is provided with a diffusing bell (7), in the bore (10) used for introducing the mixture in the combustion chamber (5). When the central rod (3) is moved, the flow rate and the pressure at the combustion chamber (5) intake is carried out in the diffusing slot. The heating gas flow rate proper is adjusted by means of a gas regulating valve (28). To the combustion chamber (5) is connected the primary heat exchanger (43) consisting of ring-shaped parts (45, 45', 45") and through which the gas effluents circulate, passing through the chimney (49), to penetrate into the secondary heat exchanger (44) wherein the combustion air, carried by the supply conduit (30) to the burner (1), is pre-heated. The method for producing such a boiler consists in a tight-fit assembly of the shell (13) and the primary heat exchanger (43) using a ring-shaped pressing jaw (60), in the assembling devices by peripheral form closure fixed by a backup ring (2) and a coupling ring (55). |
