Wrapped fan cylinder for water cooling tower
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United States of America Patent
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-
Jan 19, 1988
Grant Date -
N/A
app pub date -
Oct 23, 1986
filing date -
Oct 23, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An initially flat sheet of a fan cylinder assembly is formed to an exact cylindrical configuration in such a manner that less than 20% of the material comprising the sheet in a direction along the thickness of the same is exposed to stress above the yield strength of the material. The sheet is provided with tabs bent to a perpendicular orientation relative to remaining regions of the sheet, and holes are punched in certain of the tabs at precise, predefined locations and which are related to precise, predefined locations of apertures spaced around the periphery of an exact circular opening in an upright support panel of the tower housing. The sheet is formed to a true cylinder by causing the major region of the sheet to bear against the periphery of the circular opening of the support panel so that the flat panel functions as a guide both during forming of the cylinder and also thereafter to retain the sheet in its proper cylindrical configuration. In an alternate embodiment of the invention, an annular member comprised of expanded foam material is secured to the support panel opposite the fan cylinder for reducing turbulence of the air flowing from the fill structure and through the fan cylinder.
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