PROBLEM TO BE SOLVED: To provide a carbonated spring generating device capable of efficiently generating a carbonated spring without increasing the water pressure.SOLUTION: The carbonated spring generating device has an air-bubble dissolving path 12 through which water having carbon dioxide bubbles mixed therein flows. The air-bubble dissolving path 12 has at least one constricted section 14 that divides the carbon dioxide bubbles, and a pressure holding section 16 that maintains the water pressure in the output side end of the air-bubble dissolving path 12 at the water pressure of inside the air-bubble dissolving path 12. The effective diameter of the air-bubble dissolving path 12 is stipulated such that the viscous resistance R of the air bubbles at the flow speed v of the water flowing through the air-bubble dissolving path 12 is at least the buoyancy F of the carbon dioxide bubbles when the carbon dioxide bubbles have a maximum diameter D as the effective diameter thereof, and the constricted section 14 has a smaller effective diameter than the air-bubble dissolving path 12.COPYRIGHT: (C)2013,JPO&INPIT【課題】水圧を高めることなく効率的に炭酸泉を生成することができる炭酸泉生成装置を提供する。【解決手段】二酸化炭素気泡が混合された水が流れる気泡溶解流路12を有し、気泡溶解流路12は、二酸化炭素気泡を分断する少なくとも1個の絞り部14と、気泡溶解流路12の出力側端において気泡溶解流路12内の水圧に保持する圧力保持部16とを有し、気泡溶解流路12の有効径は、気泡溶解流路12を流れる水の流速vにおける気泡の粘性抵抗Rが、二酸化炭素気泡が該有効径である最大径Dである場合の二酸化炭素気泡の浮力F以上となるように定められ、絞り部14は、気泡溶解流路12よりも有効径が小さくされている。【選択図】図1
