| 摘要 |
PROBLEM TO BE SOLVED: To discharge water accumulated in a gas chamber to enable producing gas dissolved water of stable concentration for a long period of time in a gas dissolving module that water to be treated is fed to a water chamber and gas to be dissolved in the water to be treated is fed to the gas chamber by installing a condensate discharge device communicating with the gas chamber. SOLUTION: A condensate storage tank 6 and the lower part of a gas chamber 3 are made to communicate with each other by piping having a water phase communicative automatic valve 7, and the condensate storage tank 6 is provided with a level gauge 8. And the condensate storage tank 6 is provided with an atmospheric open automatic valve 9 in the upper part thereof and with a condensate discharge automatic valve 10 in the lower part thereof. In use, when the accumulation of the prescribed quantity of condensate is detected by the level gauge 8, the water phase communicative automatic valve 7 is closed to cut off the communication between the gas chamber 3 and the condensate storage tank 6, and at the same time, the atmospheric open automatic valve 9 and the condensate discharge automatic valve 10 are opened to discharge the condensate in the condensate storage tank 6 to a drain line. After discharging the condensate, the automatic valves 9, 10 are closed and the automatic valve 7 is opened to resume the storage of the condensate generated in the gas chamber 3.
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