| 摘要 |
Heat exchanger (1) of the bar and plate type, which comprises a battery (2) of parallel metallic plates (3) defining a plurality of first passages (5) for the outflow of a cooling fluid and a plurality of second passages (6), alternate with the first, for the outflow of an operating fluid. In the first passages (5), crossed by the cooling fluid, turbulence means are housed, advantageously also foreseen in the second passages (6), which are in thermal contact with the pairs of metallic plates (3) that define the first passages (5), or rather also the second passages (6), to increase the heat exchange of the cooling fluid. Each of the turbulence means also comprises a first and a second shaped plate (11, 12), which are housed in a first portion (18) and in a second portion (19) of the first passage (5), respectively, and define a plurality of first parallel channels (11 ') and a plurality of second parallel channels (12'), respectively, for the outflow in progression of the cooling fluid between the first opening (7) and the second opening (8). The first and the second shaped plate (11, 12) occupy two different areas of bulk of the first section of the first passage (5) and thus define a first and a second useful area with a different value being bigger or smaller with respect to one another at a smaller or larger amount of the component in liquid state with respect to that of the component in vapour state of the cooling fluid, respectively. |
