| 摘要 |
<P>PROBLEM TO BE SOLVED: To keep stably manufacturing gas dissolution liquid that dissolves a sufficient amount of gas to a liquid. <P>SOLUTION: The gas-liquid dissolving device 1 forms a curtain-like water curtain in the container with internal straightening vanes 11-15, and forms a state in which liquid is sandwiched from both sides by gas, contacts each other at a wide area, and falls. Moreover, a power supply unit PS, a liquid level sensor 31, timers T1-T3, relays X1 and X2 or the like are incorporated in a control circuit 60 in a control box 50, and a solenoid valve 32 for gas supply is opened when a liquid level exceeds an upper limit value H1, and is closed when a fixed time has passed after it has become a lower limit H2. In addition, the degassing timer T3 is operated, the relay X2 for degassing is operated during a fixed time, and a solenoid valve 33 for degassing is opened, when it becomes the setting time of the 24 timer T1. At this time, the operation is compulsorily limited as for the relay X1 for gas supply. <P>COPYRIGHT: (C)2013,JPO&INPIT |
