STORAGE

To significantly improve a dehumidification effect in a storage, to realize an indoor environment with lower humidity.SOLUTION: A storage 1 comprises dehumidifying units 2-1 and 2-2 having a heat-recyclable desiccant, and a buffer chamber 11. The dehumidifying unit 2-1 alternatively executes a first dehumidifying process of circulating air with an inside 10 to make the desiccant absorb moisture in the air taken in from the inside 10 to dehumidify the inside 10, and a first heat regeneration process of circulating air in the buffer chamber 11 and heating the desiccant to release the moisture of the desiccant into the air taken in from the buffer chamber 11 to regenerate the drying ability of the desiccant. Also, the dehumidifying unit 2-2 selectively executes a second dehumidifying process of circulating air with the buffer chamber 11 to make the desiccant absorb moisture in the air taken in from the buffer chamber 11 to dehumidify the buffer chamber 11, and a second heat regeneration process of circulating air with an outside 12 and heating the desiccant to release the moisture of the desiccant into the air taken from the outside 12 to regenerate the drying ability of the desiccant.SELECTED DRAWING: Figure 1 【課題】庫内の除湿効果を飛躍的に向上させて、より低湿度な庫内環境を実現する。【解決手段】保管庫１は、加熱再生可能な乾燥剤を有する除湿ユニット２−１、２−２と、緩衝室１１とを備える。除湿ユニット２−１は、庫内１０と空気循環して、乾燥剤に庫内１０から取り込んだ空気中の水分を吸湿させ、庫内１０を除湿する第１除湿処理と、緩衝室１１と空気循環するとともに、乾燥剤を加熱して乾燥剤の水分を緩衝室１１から取り込んだ空気中に放出し、乾燥剤の乾燥能力を再生する第１加熱再生処理とを択一的に実施する。また、除湿ユニット２−２は、緩衝室１１と空気循環して、乾燥剤に緩衝室１１から取り込んだ空気中の水分を吸湿させ、緩衝室１１を除湿する第２除湿処理と、庫外１２と空気循環するとともに、乾燥剤を加熱して乾燥剤の水分を庫外１２から取り込んだ空気中に放出し、乾燥剤の乾燥能力を再生する第２加熱再生処理とを択一的に実施する。【選択図】図１