| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dissolved oxygen concentration increasing apparatus capable of increasing the dissolved oxygen concentration in water with a simple structure and keeping the increased dissolved oxygen concentration over a long time. <P>SOLUTION: The dissolved oxygen concentration increasing apparatus is provided with: a self-sucking pump 2 for pumping up water in a container 1 or a pond or the like; an oxygen/nitrogen separator 4 for supplying high concentration oxygen to the pumped up water; a compressor 5 connected to the oxygen/nitrogen separator 4 to introduce a gas; and a microbubble generating nozzle 7 provided at the tip of a pipe 3 for injecting the oxygen water pumped up by the self-sucking pump 2 and having increased oxygen concentration to the container or the pond or the like. The microbubble generating nozzle 7 is structured so as to arrange a flow-in part 8 of the oxygen water and a throttle part 9 having smaller diameter than that of the flow-in part 8 and a nearly spherical storage part 10 for releasing the oxygen water flowing out to the tip of the throttle part 9 while stirring to be in a vortex state. The water in which the high concentration oxygen is incorporated is return to the water in the container 1 or the pond or the like through the microbubble generating nozzle 7 to dissolve the oxygen to have high concentration. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
