| 摘要 |
<p>Exchanger (14) for a fuel boiler in which the fluid to be heated circulates in a double wall (3) forming a sheet and with which the exchanger (14) is in communication. It comprises two hollow symmetrical parts (15, 15') in the form of sheets which are arranged above or at the bottom of the combustion chamber (1), forming between them a free space (16), and connected on the opposite side to the internal face of the double wall (3). In each part (15, 15'), a central plate (19), fixed only to the external face of the double wall (3), makes it possible to form in the exchanger (14) two parallel fluid sheets which communicate with one another via a chicane (20). The invention is applied particularly to domestic or industrial boilers for hot water, steam, hot air or other fluid. <IMAGE></p> |
