| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bubble lift system and a bubble lift method capable of suppressing the expansion of bubbles and gas by leading an upper end of a riser tube inside a pressurizing chamber at high pressure without opening the upper end in the atmosphere, capable of uniformly distributing the bubbles entirely inside the riser pipe by providing a deaeration device capable of executing the deaeration of centrifugally-separated bubbles even in a shallow water region in the middle of the riser tube, and efficiently applicable also in a deep water region. <P>SOLUTION: A pressurizing chamber 21 is provided on an upper end portion of a riser pipe 11. By pressurizing the inside of an upper portion of the riser tube 11, any increase of the ratio of the volume of bubbles in a mixed fluid rising in the riser tube 11 in a shallow water region is suppressed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
