| 摘要 |
<p>LAUNDRY DRYER A laundry dryer structured to recirculate and reheat a portion of the warm exhaust air, and admix same with newly heated make-up air. A novel hot air compartment positioned within the dryer's housing includes a heat transfer air duct disposed immediately above, and as a part of, a heat transfer chamber. The heat transfer chamber includes a roof above a heat source, that roof comprising the floor of the heat transfer air duct and that roof being heated by the heat source. Recirculated air is directed over the exterior surface of the heat transfer air duct (which is heated by reason of its being proximate to and a part of the heat transfer chamber), and thereafter is directed through the heat transfer air duct. The make-up air heated in the heat transfer chamber exhausts from a port in that chamber's roof into admixed flow with the already preheated, recirculated air as the recirculated air passes through the heat transfer air duct. The compartment also includes a feed duct adapted to direct the admixed recirculated air and make-up air, after same has been heated to the required temperature level, into the rotating drum of the dryer. This structure serves to reheat the recirculated air, as well as to heat initially the make-up air, without directly contacting the recirculated air with the heat source.</p> |
