| 摘要 |
A heat exchange device (10) is described comprising a plurality of tubes (12) arranged parallel to one another in order to form one or more tube bundles inserted axially in a cylindrical shell (14). A first fluid, generally a coolant made up of a two-phase liquid/vapour mixture, supplied through one or more first inlet holes (16) located at a first end of the cylindrical shell (14) and oriented axially, flows inside the tubes (12) and a second fluid, supplied through a second inlet hole (20), flows inside the cylindrical shell (14) itself in order to carry out the heat transfer with the first fluid through the walls of the tubes(12). A first end of the tubes (12) is connected to a tube plate (26), located at said one or more first inlet holes (16), which separates the second fluid from the first fluid. At least two impingement plates (30; 32), each provided with a plurality of through holes (34; 34A, 34B, 34C), are placed in succession between each first inlet hole (16) of the first fluid and the tube plate (26). The impingement plates (30; 32) are arranged parallel to one another and orthogonally with respect to the central axis of the cylindrical shell (14) so as to distribute in the most uniform way the first fluid inside the tubes (12). |
