Cooling tower, particularly of the closed-circuit type

A cooling tower (1), particularly of the closed-circuit type, comprising a hollow body (2) provided with at least one first air intake (3), with at least one second air intake (4) and with at least one main opening (5), so as to form a first air passage circuit and a second air passage circuit which are delimited by the internal walls of the hollow body (2) and extend, respectively, between the first air intake (3) and the main opening (5) and between the second air intake (4) and the main opening (5). At least one first heat exchanger (6) and at least one second heat exchanger (7) are accommodated respectively along the air passage circuits, are traversed by a fluid to be cooled, and are adapted to transfer heat, respectively, to a first air stream (8) and to a second air stream (9) which converge in the air passage circuits. At the main opening (5), there are also fan means (14) which are adapted to generate the air streams (8, 9). The cooling tower further comprises first means (12) for closing the first air intake (3) and second means (13) for closing the second air intake (4), which can be activated selectively to interrupt at least one of the air streams (8, 9).