| 摘要 |
PURPOSE:To elevate the mounting strength of a blower and the heat insulating property, by building the blower body of a high pressure/low temperature tunnel in an external insulation structure while the bodies connected before and after it is built in an external insulation structure on the blower side and in an inter nal insulation on the other side. CONSTITUTION:A high pressure/low temperature wind tunnel 10 is made up of a measuring body 12, a diffusion body 14, a contraction body 16, a blower body 19 and medium bodies 20-22. Here, the blower body 19 for mounting a blower 18 is built in an external insulation structure having an insulating material layer on the outer surface of the body wall and the upstream side connection body 20 and the downstream side connection body21 connected before and after it are built in an external insulation structure on the blower 18 side and in an internal insulation structure on the opposite side thereof as stepped body wall. Other bodies are all built in an internal insulation structure. The blower 18 is mounted slidably on the blower body 19 with a support mechanism to prevent the eccentricity. Thus, the wind tunnel 10 can be of an internal insulation type to elevate the heat insulating property while strengthening the mounting of the blower 18. |
