| 摘要 |
PROBLEM TO BE SOLVED: To provide a degassing apparatus which degasses oxygen dissolved in circulating water efficiently in a short time. SOLUTION: The degassing apparatus has a reaction tank 2 which stores a specified amount of circulating water 6 within it and forms a space 7 of a specified volume above the circulating water 6, a water circulation circuit 10 which is connected to the upper part of the reaction tank 2 and guides the circulating water 6 discharged from a water circulation circuit 80 to the space 7 of the reaction tank 2, a nitrogen injecting circuit 20 which is connected to a midway of the water returning circuit 10 and injects nitrogen, under pressure, into the circulating water 6 passing through the water circulation circuit 10, a negative-pressure condition retaining system 30 connected to the upper part of the reaction tank 2 and retaining specified negative-pressure circumstances by evacuating the inside of the space 7 in the reaction tank 2 and a water returning system 60 guiding the circulating water 6 discharged from the reaction tank 2 into the water circulation circuit 80. COPYRIGHT: (C)2007,JPO&INPIT
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