PROBLEM TO BE SOLVED: To dispose of stored items such as dishes by drying and disinfecting stored items by circulating hot air in the chamber, and sometimes it is desirable to take them out immediately after drying and serve them for serving. is there. Therefore, in order to cool the stored items in the storage state, the external air is taken in to perform primary cooling, and then secondary cooling is performed with a refrigerator having a compressor. However, when the outside air is taken into the storage, there is a problem that stored items are re-contaminated by airborne bacteria and dust. SOLUTION: As a cooling system for cooling the inside of the disinfection storage 10, an evaporator EVA arranged inside the disinfection storage 10 and an evaporator EVA provided outside the disinfection storage 10 and above the evaporator EVA. From the arranged condenser CD and the refrigerant circulation path 40 that connects the evaporator EVA and the condenser CD in a loop and circulates the refrigerant enclosed inside between the evaporator EVA and the condenser CD due to the temperature difference. The configuration eliminates the need to take in outside air. [Selection diagram] Figure 1【課題】庫内に熱風を循環させて食器等の保管物を乾燥消毒する消毒保管庫において、乾燥させた後に直ぐ取り出して配膳に供したい場合があるが、このとき保管物は未だ高温状態にある。そこで保管物を保管状態のままで冷却するために、外部空気を取り入れて一次冷却し、次いで圧縮機を有する冷凍機で二次冷却することが実施されている。しかし、庫内に外気を取り入れると、空気中の浮遊菌や埃により保管物が再汚染する難点がある。【解決手段】消毒保管庫１０の庫内を冷却する冷却系として、消毒保管庫１０の内部に配置した蒸発器ＥＶＡと、消毒保管庫１０の外部に設けられ、かつ蒸発器ＥＶＡよりも上方に配置した凝縮器ＣＤと、蒸発器ＥＶＡと凝縮器ＣＤとをループ状に連結すると共に、内部に封入した冷媒を温度差により蒸発器ＥＶＡおよび凝縮器ＣＤの間で循環させる冷媒循環路４０とから構成することで、外気を取り入れる必要をなくした。【選択図】図１
