PURPOSE: To stably feed carbonated spring of high concentration as fine air bubbles are deposited and to improve the efficiency of dissolution to a feed amount by a method wherein a ratio of carbon dioxide in gas in which carbon dioxide and air are mixed together is specified.
CONSTITUTION: A feed part 5 to feed carbon dioxide being gas and air is forced with a carbon dioxide feed pipe 5a to feed carbon dioxide and an air feed pipe 5b to feed air, and connected to a gas feed pipe 7 and coupled to a line 4 through an air bubble mixing part 12. Valve devices 5a' and 5b' to regulate an amount of gas fed to the gas teed pipe 7 are located in the carbon dioxide feed pipe 5a and the air feed pipe 5b, respectively, and by opening and closing the valve devices through the working of a timer 8, gas is fed to the gas feed pipe 7. A feed ratio between air and carbon dioxide is set so that the more air is fed, the more an amount of generated fine air bubbles is increased, and with the increase in an amount of carbon dioxide, deposition of fine air bubbles is decreased and therefore, the degree of cloudiness due to fine air bubbles is decreased. Further, since, when a large quantity of carbon dioxide is fed, large bubbles are deposited, it is desirable that a percentage of carbon dioxide in a gap where carbon dioxide and air are mixed together is set to 50-60%.
KAWAGOE HARUMORI
MATSUGI SHIN
| JPS61142037U | 1986-09-02 |
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