| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide discharge nozzle valve assembly for a deodorizing system low in noise level. SOLUTION: A discharge nozzle valve assembly 10 consists of a combination of a nozzle body 16 provided with an inlet 18 and an outlet 26 for a diluted ozone flow and a nozzle valve element 28 containing a cylindrical stem part freely attachable and detachably housed in a hollow part 20 of the nozzle body 16. Between the inner wall of the hollow part of the nozzle body 16 and the outer surface of the cylindrical stem part, a spiral path 42 for making the inlet 18 and the outlet 26 in fluid communication with each other is formed. The spiral path 42 is at least one continuous spiral groove 42a, 42b provided on the outer surface of the cylindrical stem part of the nozzle valve element. The diluted ozone flow enters the nozzle body from the inlet and is turned into a turning flow while it passes through the spiral path, and is sent at an extremely low noise level to an odor source in the room from the outlet of the nozzle body.</p> |
