PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing carbonated water stably supplying carbonated water of high concentration of carbon dioxide gas providing physiological effect, regardless of flow rate of raw water.SOLUTION: Continuously supplied raw water and carbon dioxide gas are supplied to a carbon dioxide gas dissolver 5 to produce carbonated water dissolved with carbon dioxide gas. The variation of the gas solubility in carbonated water production is measured by detecting the gas variation amount in a gas separation vessel 14, by a raw water flow detecting means 3 and a carbon dioxide gas flow detecting means 10. The data are sent to a control device 15 having an operation part, and the gas variation amount in a unit time is operated by the operation part of the control device from the difference between the detected data and a reference gas amount stored in the control device in advance. Based on the gas variation amount in a unit time, a flow rate control means of the raw water and/or the flow rate control means of carbon dioxide gas is controlled by the signals outputted from the control device 15 to the flow rate control means of the raw water and/or the flow rate control means of carbon dioxide gas.COPYRIGHT: (C)2010,JPO&INPIT【課題】原水の流量の如何に関わらず、生理的効果が得られる高い炭酸ガス濃度の炭酸水を、安定して供給できる炭酸水の製造方法及び装置を提供する。【解決手段】連続的に供給される原水及び炭酸ガスとを炭酸ガス溶解器5内に供給して、炭酸ガスが溶解した炭酸水を製造する。原水の流量検出手段3及び炭酸ガスの流量検出手段10により、炭酸水製造時のガス溶解率の変動を、ガス分離容器内14におけるガス変動量を測定する。前記データを演算部を有する制御装置15に送り出し、前記検出データと予め前記制御装置に記憶された基準ガス量のデータとの差から、単位時間内のガス変動量を制御装置内の演算部にて演算する。単位時間内のガス変動量に基づいて、前記制御装置15から上記原水の流量調節手段及び/又は炭酸ガスの流量制御手段に発せられる信号により、同原水の流量調節手段及び/又は炭酸ガスの流量制御手段を制御駆動する。【選択図】図1
