| 摘要 |
It comprises a bundle of tubes (2) or plates arranged inside a housing (3), said housing defining an inlet (4) and an outlet (5) for gases intended to circulate inside said tubes (3) or plates, the inside of each of said tubes (2) or plates comprising means (8) for perturbing the stream of gas in order to facilitate the exchange of heat with a coolant fluid, characterized in that said perturbing means comprise at least two sets (8a, 8b, 8c, 8d) of perturbing elements (8) which are arranged one on the other inside each of said tubes (2) or plates, each of said sets (8a, 8b, 8c, 8d) of perturbing elements (8) defining an independent subset of paths (11a,11b,12a,12b) for the passage of the stream of gas. |
