Method and system for making ice by underwater supercooling release and low temperature water supply system comprising it

Abstract

The ice making system by supercooling release comprises an ice thermal storage tank, a residual supercooled water generating section, and a complete releasing section. The complete releasing section and ice thermal storage tank are connected with an ice water line. Further, the ice thermal storage tank and residual supercooled water generating section are connected with a water line. The residual supercooled water generating section is supplied with water from the ice thermal storage tank to generate supercooled water, which is released from the supercooled state, ice and residual supercooled water being produced thereby. The residual supercooled water is completely released from supercooled state in the complete releasing section. The complete releasing is performed in the manner, in which the mixture containing the residual supercooled water and generated ice nuclei is spout into an erect, cylindrical container from its bottom part to generate a spiraling flow or vortex flow therein, and supercooling release of said residual supercooled water is achieved by the increased frequency of contact between said residual supercooled water and said ice nuclei through the agitation of said mixture due to said vortex flow, which continues until the flow is pushed out from the outlet provided in the upper portion of said erect, cylindrical container.