| 摘要 |
<p>This invention relates to an apparatus for maintaining the desired temperature of a fluid, or more specifically, to reducing the temperature of the fluid to a desired level. The apparatus generally relates to one including a heat exchange coil through which the fluid to be cooled passes and over which an air stream is moved to absorb heat from the coil. In such an arrangement, it is common to increase the heat transfer efficiency of the coil by maintaining the same in a wet condition by means of a water spray or cascade, for example. In this manner, evaporation of the water causes an accelerated transfer of heat from the fluid in the coil for a given amount of air flow thereover than would be the case if the coil surface was not drenched. The present invention is directed to the disposition of a propeller air moving means sufficiently downstream of the cooling coil so as to be substantially free of air flow obstructions. In addition, the usefulness and efficiency of the apparatus is improved by the inclusion of a novel air recirculation damper having an air foil configuration which is pivoted about its trailing edge.</p> |
