| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air mixing nozzle which increases oxygen dissolution efficiency and reduces running cost by breaking introduced bubbles into smaller ones by using pressurized water flow energy flowing through the inside of a nozzle member at high speed without increasing the amount of air introduced from the outer periphery of pressurized water flow and water flow rate. <P>SOLUTION: In the air mixing nozzle where a suction nozzle member 1, an intermediate nozzle members 2, 3 and an injection nozzle member 4 in which a water passage is formed are coaxially arranged and connected in an outer housing 5, in which an air introduction chamber 51 is formed, and air is sucked into the water passage by air introduction nozzles formed in a plurality of stages in the nozzle members, a plurality of the air introduction nozzles 81 are formed in one end and/or both ends of the nozzle members in opposite nozzle members-connecting end face parts so that respective grooves 8 for air suction are shallowly carved tangentially to the water passage in the nozzle members so as to make their contact area with flowing water large. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
