| 摘要 |
Heat exchange devices and methods of using same are provided. In a general embodiment, the present disclosure provides for heat exchange devices that are cooling devices having a double helical coil in a phase-mixing-cooling section, a helical coil in a phase-separation-cooling section, and a back-pressure valve intermediate the two coils. The cooling devices provide maximum extraction of the heat content from a heated food product using a direct-injected liquid cryogen, and complete separation of the gaseous cryogen phase from the cooled product, while avoiding the formation of a stable foam. Hybrid direct-indirect cooling devices are also provided, as well as methods for using same. |
