| 摘要 |
PROBLEM TO BE SOLVED: To provide a blowout device capable of absorbing noise propagating from a blower duct while suppressing generation of wind noise, in a central type air conditioning facility in which conditioned air is sent to each air conditioning space via the long blower duct.SOLUTION: A blowout device 11 includes a body 14 connected to a branch duct 10. An air guide sound absorption material 15 extending in a radial direction is arranged inside the body 14. The air guide sound absorption material 15 is made of a porous material and has excellent sound absorbing properties, and a terminal end 24 is located at a place of an air outflow port 19. Noise which has propagated in a blower duct 7 is absorbed by the air guide sound absorption material 15. Also, conditioned air is separated from the terminal end 24 of the air guide sound absorption material 15 without generating a vortex flow, and wind noise generating in the air guide sound absorption material 15 is very small. As a result, quietness in an airconditioning space can be improved. This can also be applied to a suction device of an air conditioning facility for sucking air from the air conditioning space 4 and the like.SELECTED DRAWING: Figure 5 |
