| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid mixing apparatus having a simple structure and capable of uniformly mixing a second fluid with a first fluid over the whole flowing passage when mixed by jetting the second fluid from a jetting port to the first fluid flowing in the flowing passage.SOLUTION: The fluid mixing apparatus mixes the second fluid B to the first fluid A by jetting the second fluid B from the jetting port 5 arranged in a flowing passage 4 where the first fluid A flows. This fluid mixing apparatus has a spiral guide vane 1 formed by projecting to the inner diameter side from a wall surface of the flowing passage 4 and having a spiral shaft in the communicating direction of the flowing passage 4, and this spiral guide vane 1 is constituted as a spiral guide vane of multiple rows provided in a plural number at the same position in the axis direction of the flowing passage 4, and in circumferentially different phases. A communicating opening area 7 continuing in the communicating direction of the flowing passage 4 is formed in the inner diameter side part of this plurality of spiral guide vanes. The jetting port 5 is arranged on the wall surface of the flowing passage 4 upstream of a position of the spiral guide vane 1. |
