PROBLEM TO BE SOLVED: To provide a cooling device which can cool water efficiently and does not need a filter.SOLUTION: A cooling device 10 includes: a cooling tank 12 provided with a water inflow port 20 and an outflow part 22 and houses water therein； and a cooler 14 which is provided at an interior of the cooling tank 12, is immersed in water, and cools the water in the immersed state. The cooler 14 includes: a cooling cylinder 16 which rotates its outer peripheral surface as a cooling surface； and a scraper 18 which scrapes deposits adhering to the outer peripheral surface of the cooling cylinder 16.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】効率的に水を冷却することができると共に、濾過器が必要のない冷却装置を提供する。【解決手段】水の流入口２０及び流出口２２が設けられ、内部に水を収容する冷却槽１２と、冷却槽１２の内部に設けられ、水中に浸漬した状態で、水を冷却する冷却器１４とを備え、冷却器１４が、その外周面を冷却面として回転する冷却筒１６と、冷却筒１６の外周面に付着した付着物を掻き取るスクレーパ１８とを備えた冷却装置１０。【選択図】図１
