Patent ID: 6240734
Filing Date: 2001-06-05
Classification: B01F,F25D

Abstract:
An ice bank chiller comprising a reservoir having a side wall and a base wall for containing reservoir water, vertically distributed cooling means positioned above said base and adjacent to said side wall, said cooling means comprising upper and lower regions of said cooling means, and said cooling means maintaining in use an ice bank on said upper and lower regions, and agitation means for agitating, in use, water contained in said reservoir, wherein said agitation means is so arranged as, in use, to cause substantial circulation of said reservoir water adjacent to said ice on both said upper and lower regions of said cooling means, wherein said agitation means comprises an agitation pump so arranged as to direct a plurality of streams of water towards said cooling means, wherein said agitation pump comprises an impeller rotatable within a pump housing, said housing being provided with a plurality of circumferentially spaced-apart pump outlets, whereby in use, on rotation of said impeller in a forward direction, said streams of water are directed from said outlets towards said ice on said cooling means.