| 摘要 |
<p>A mixer-injector (20) to improve the mixing and solution of treatment substances into a water stream. The mixer-injector (20) has a constricting portion (35), a cylindrical injection portion (40), and an expanding portion (43) in that order in the direction of flow, with an injector port (45) entering the injection portion (40). The twisting vanes (50) are formed on t he wall of the constricting portion (35), and straightening vanes (51) are form ed on the wall of the expanding portion (43). The twisting vanes (50) give a rotary component of motion to an outer portion of the water stream in the injection portion (40), and the straightening vanes (51) remove at least som e of it in the expanding portion (43), both to cause more pronounced vigorous movement of bubbles, and improved solution of the treatment substances.</SDO AB></p> |
