PROBLEM TO BE SOLVED: To provide a water tank cooling device that eliminates the need for using a conventional cooler in a simpler configuration at low cost.SOLUTION: A water tank cooling device comprises: a first porous water-absorbing substrate 3 with a pore diameter formed to a water molecular size, and having a lower end immersed in a water surface in a water tank 1 a blower 4 installed in the vicinity of the upper end side of the first porous water-absorbing substrate 3, and sending air to the porous water-absorbing substrate a second porous water-absorbing substrate 5 for receiving water vapor vaporized and blown from the upper side of first porous water-absorbing substrate 3 by blowing air with the blower 4 in the front side an aqueduct 6 for guiding water to the storage water in the water tank, the water that is condensed in the second porous water-absorbing substrate 5 and is dropped from the rear surface side of the second porous water-absorbing substrate 5 and a conduction tube 8 for bringing the air exhausted from the rear surface side of the second porous water-absorbing substrate 5 into communication with the intake side of the blower 4.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】従来のような冷却器を使用することなく、より簡易な構成でコストもかからない水槽冷却装置を提供する。【解決手段】孔径が水分子の大きさに形成され、その下端部が水槽1内の水面に浸漬された第一の多孔質吸水基板3と、第一の多孔質吸水基板3の上端部側の近傍に設置され、当該多孔質吸水基板に対して送風する送風機4と、送風機4による送風によって、第一の多孔質吸水基板3の上部側から気化し吹き出される水蒸気をその前面側で受け止める第二の多孔質吸水基板5と、第二の多孔質吸水基板5内で凝結し、第二の多孔質吸水基板5の後面側から落滴する水を水槽内の貯留水に導く導水管6と、第二の多孔質吸水基板5の後面側から排気される空気を送風機4の吸気側へ連通させる導通管8とから構成される。【選択図】図1
