| 摘要 |
PURPOSE: A dry ice spraying system is provided to stabilize the supply of dry ice by preventing a spraying line and a nozzle from becoming blocked. CONSTITUTION: A dry ice spraying system(100) comprises a cooling tank(110), a thermoelectric module unit(120), a first pump(130), a spraying unit(140), a heat circulating unit(150), and a controller(160). The cooling tank liquefies carbon dioxide in a carbon dioxide supply line. The thermoelectric module unit is connected to the cooling tank through an antifreeze circulation line(132) and cools an antifreeze supplied from the antifreeze circulation line. The first pump circulates the antifreeze. The spraying unit is connected to the carbon dioxide supply line and vaporizes the liquefied carbon dioxide. The heat circulating unit prevents the spraying unit from freezing. The controller controls the output of the thermoelectric module(122) of the thermoelectric module unit.
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