PRE-COOLING AND FRESHNESS-PRESERVING COOLING CONTROL DEVICE EMPLOYING DUAL THROTTLING SYSTEMS FOR ICE-CREAM MACHINE, COOLING CONTROL METHOD, AND ICE-CREAM MACHINE

摘要

Provided are a pre-cooling and freshness-preserving cooling control device employing dual throttling systems for an ice-cream machine, a cooling control method, and an ice-cream machine. The cooling control device comprises a compressor (1), a condenser (2), a material reservoir evaporator (4), a freezing cylinder refrigeration inlet conduit (31), and a freezing cylinder refrigeration outlet conduit (32). An outlet end of the condenser (2) is connected to a condenser outlet pipe (106). The condenser outlet pipe (106) is in communication with three branch pipes, respectively. The three branch pipes are a freezing cylinder refrigeration pipe (102), a material reservoir pre-cooling pipe (103) and a material reservoir freshness-preserving pipe (104) which are arranged in parallel. The freezing cylinder refrigeration pipe (102) is in communication with the freezing cylinder refrigeration inlet conduit (31). The material reservoir pre-cooling pipe (103) and the material reservoir freshness-preserving pipe (104) are in communication with an inlet end of the material reservoir evaporator (4). An outlet end of the material reservoir evaporator (4) and the freezing cylinder refrigeration outlet conduit (32) are respectively in communication with the compressor (1). The cooling control device can separate a pre-cooling mode and a freshness-preserving mode for a material reservoir.