Rotating disk evaporative cooler

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 5/00 (2006.01) F24F 5/00 (2006.01) F25B 39/04 (2006.01) F28B 1/00 (2006.01) F28C 1/00 (2006.01)

Patent

CA 2303382

A tank (20) holds a pool of liquid coolant (30) in which spaced, rotatable disks (24) are partially submerged. An air flow is established over exposed portions of the disks (24), preferably parallel thereto, whereby coolant adhering to the disks upon rotating out of the coolant pool is partially evaporated and the disks and remaining adhering coolant have their temperature lowered and serve to cool the coolant pool upon reentry into the pool from the air space above. A fluid to be cooled is passed through tubes (22) mounted in the tank, below the surface (S) of the liquid coolant, parallel to the surfaces of the disks. Adjacent rows of tubes define spaces therebetween, each of which receives the submerged portion of at least one disk. The evaporative cooler may be used in a refrigeration apparatus in combination with a compressor and an evaporator.

Un réservoir (20) contient un bain de liquide de refroidissement (30) dans lequel des disques tournants (24) sont partiellement plongés. Une circulation d'air est entretenue au-dessus des zones dégagées des disques, de préférence parallèle à ces disques. En l'occurrence, à la sortie du bain pendant chaque rotation, le liquide de refroidissement adhérant aux disques s'évapore partiellement, ce qui abaisse la température des disques et du restant de liquide de refroidissement adhérant aux disques, et participe au refroidissement du bain de liquide de refroidissement dès le retour dans le bain en provenance du volume d'air du dessus. Un fluide à refroidir est envoyé dans des tubes (22) montés dans le réservoir, en dessous de la surface (S) du liquide de refroidissement, parallèlement aux surfaces des disques. Des rangées adjacentes de tubes définissent des espaces entre elles, chaque espace recevant la partie plongée d'au moins un disque. Ce refroidisseur évaporatif convient à des appareils de réfrigération, en association avec un compresseur et un évaporateur.

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