Device for producing a stream of air through a volume of liquid

A device for producing a stream of air comprising a unitary enclosure, adapted to contain a volume of liquid, and which includes at least one air discharge opening, air injection means including a vertical tube which is positioned inside the enclosure and whose lower vertical part is submerged in said volume of liquid contained in the enclosure and comprises an air outlet submerged in said volume of liquid contained in the enclosure at a depth comprised between 20 mm and 80 mm, wherein said air injection means are adapted to create and pass an incoming stream of air with a flow rate of at least 100 m3/h, from the outside of the enclosure in a volume of liquid contained in the enclosure, by injecting said incoming stream of air into said volume of liquid, below the surface of said volume of liquid, such that said incoming stream of air creates turbulence in the volume of liquid that causes spraying of liquid drops and that said incoming stream of air is treated by direct contact with the volume of liquid and leaves the volume of liquid in the form of an outgoing stream of air which is discharged outside said enclosure by passing through the air discharge opening of the enclosure, wherein the enclosure includes one or several baffles that are positioned above the volume of liquid and between the volume of liquid and said discharge opening, said one or several baffles being positioned horizontal with respect to the top of surface of the volume of liquid along the plates major surface or wherein the enclosure includes several baffles that are positioned above the volume of liquid and between the volume of liquid and said discharge opening with at least one baffle above another baffle, said one or several baffles enabling to circulate the outgoing stream of air leaving the volume of liquid to the discharge opening causing the outgoing stream of air to undergo one or several changes of direction, so as to prevent the spraying of liquid through the air discharge opening, and said device further including a temperature control that automatically keeps the temperature of said volume of liquid in the enclosure at a predefined temperature, or renews the liquid in the enclosure, so as to automatically keep, in the enclosure, a predefined volume of liquid at a predefined temperature.