| 摘要 |
<p>The heat exchanger, associated with a gas or fuel oil burner (6), comprises at least one tubular array (2) through which a fluid to be heated, particularly cold water, circulates and which is mounted inside a jacket (1) which is impermeable to gases, said tubular array (2) being exposed to hot gases generated by the burner (6), whereas the jacket (1) comprises a sleeve (122) for evacuating vapors. The device is characterized in that the jacket (1) has a wall portion which is embodied in the form of a compartment (11, 12) accommodating a gas/air (9) collector heat exchanger enabling part of the heat carried by the fumes exiting from the tubular array (2) to be collected, being displaced towards the exit sleeve (122) in order to transfer it to air captured inside the heat exchanger, whereby means such as a ventilator (V) are also provided in order to transfer air which is heated by the gas/air heat collector to the entrance of the burner (6). The condensation exchanger, particularly designed for domestic use, enables cold and dry vapors to be discharged into the atmosphere and supplies the burner with clean, pre-heated combustion air.</p> |
