Abstract: A system for providing an iced alcoholic beverage such as iced beer or carbonated soft drink includes a source of chilled coolant (16), and a beverage line (10) for supplying the beverage. A heat exchanger (20) is disposed in the beverage line (10) for cooling the beverage by heat transfer to the chilled coolant. A restriction (22) or orifice forming a venturi is provided in the beverage line (10) downstream from the heat exchanger. A chilled font (18) for further cooling the beverage is provided downstream from the orifice. The font (18) includes a dispenser tap (30) capable of dispensing the beverage at a relatively low dispense rate and at a relatively higher dispense rate. In use the beverage is first dispensed at a relatively low dispense rate through a smaller orifice of a narrow diameter at a preset low flow rate of beverage, and becomes ice or slush (40).

Abstract: A heat exchanger (10) has an outer housing (16) and a first helical fluid flow path or coil (12) located in the housing (16) defining a plurality of turns and having an inlet (24) and an outlet (22) for entry and exit of fluid into the flow path to be heated or cooled. A second helical coil (14) defining a second fluid flow path is located within the housing (16) adjacent to the first coil. The second coil also has an inlet (24) and outlet (22) for a passage for hot or cold service media. A conductive or non-conductive sheath (18) is disposed between the coils. A transfer medium is disposed in the housing for transfer of heat between the first and second flow paths. A plurality of baffles (20) are located between the outer housing and sheath and disposed between turns of the first coil. A plurality of baffles (21) are also disposed between turns of the second coil (14).

Abstract: A heat exchanger (10) comprises a coolant line (11) and a beverage line (13), embedded in a solid block of Aluminium (15). The coolant line (11) is in the form of a first helical coil defining a plurality of turns typically located in the centre of the block. The beverage line (13) is in the form of a second helical coil defining a plurality of turns extending around the first coil. The coolant line defines a cold zone (12), typically in the centre of the block, with the volume outside the central zone carrying the beverage line ratio defining an designated beverage cooling zone (14). The volume ratio of the designated zone to the cold zone is about 150:100. The heat exchanger allows for cooling of beer to precise temperatures and even temperatures close to freezing point, using direct expanded Freon refrigeration methods. The complete system including the refrigeration equipment to be packaged into a small area, such as is available under bars and dispensing counters etc.

Abstract: A system for providing an iced alcoholic beverage such as iced beer or carbonated soft drink includes a source of chilled coolant (16), and a beverage line (10) for supplying the beverage. A heat exchanger (20) is disposed in the beverage line (10) for cooling the beverage by heat transfer to the chilled coolant. A restriction (22) or orifice forming a venturi is provided in the beverage line (10) downstream from the heat exchanger. A chilled font (18) for further cooling the beverage is provided downstream from the orifice. The font (18) includes a dispenser tap (30) capable of dispensing the beverage at a relatively low dispense rate and at a relatively higher dispense rate. In use the beverage is first dispensed at a relatively low dispense rate through a smaller orifice of a narrow diameter at a preset low flow rate of beverage, and becomes ice or slush (40).

Abstract: A heat exchanger (10) has an outer housing (16) and a first helical fluid flow path or coil (12) located in the housing (16) defining a plurality of turns and having an inlet (24) and an outlet (22) for entry and exit of fluid into the flow path to be heated or cooled. A second helical coil (14) defining a second fluid flow path is located within the housing (16) adjacent to the first coil. The second coil also has an inlet (24) and outlet (22) for a passage for hot or cold service media. A conductive or non-conductive sheath (18) is disposed between the coils. A transfer medium is disposed in the housing for transfer of heat between the first and second flow paths. A plurality of baffles (20) are located between the outer housing and sheath and disposed between turns of the first coil. A plurality of baffles (21) are also disposed between turns of the second coil (14).

Abstract: A heat exchanger (10) has an outer housing (16) and a first helical fluid flow path or coil (12) located in the housing (16) defining a plurality of turns and having an inlet (24) and an outlet (22) for entry and exit of fluid into the flow path to be heated or cooled. A second helical coil (14) defining a second fluid flow path is located within the housing (16) adjacent to the first coil. The second coil also has an inlet (24) and outlet (22) for a passage for hot or cold service media. A conductive or non-conductive sheath (18) is disposed between the coils. A transfer medium is disposed in the housing for transfer of heat between the first and second flow paths. A plurality of baffles (20) are located between the outer housing and sheath and disposed between turns of the first coil. A plurality of baffles (21) are also disposed between turns of the second coil (14).