| 摘要 |
An ice bank cooler 50 which is used for cooling dispensed beverages, has a coolant reservoir 52 and an associated refrigeration unit. The refrigeration unit has a refrigerant pipe 62 for the circulating refrigerant, and a portion of the pipe is located in the coolant in order to form an ice bank. The freezing point of the coolant in the reservoir is below the freezing point of water, but above the operating temperature of the refrigerant. One or more products pipes (12 fig 1) are provided for carrying a product to be cooled, and a portion 66 of the product pipes is located in the coolant. The cooler may include a thermostat which switches the refrigeration unit on or off so as to maintain the coolant temperature within defined limits. The refrigeration pipe and the product pipes may be coiled, and the cooler may include a pump 70 for circulating coolant around a python (16 fig 1). The freezing point of the coolant may be higher than -5{C, and may include water and a freeze suppressant such as propylene glycol. The refrigeration unit may include a pump located in a refrigeration deck 64. |
