Thermal exchange apparatus for preheating the ambient air supplied to the burners of an oven (Machine-translation by Google Translate, not legally binding)

摘要

Heat exchange apparatus for preheating the ambient air supplied to the burners of a furnace consisting of a housing; a horizontal partition wall within the housing for dividing the interior volume of the housing into an upper chamber and a lower chamber; means for introducing a flow of relatively hot combustión gases towards one end of the housing and through the lower chamber; means for introducing a flow of ambient air at the other end of the housing and through the upper chamber in a countercurrent relationship with respect to the combustión gases in the lower chamber; and a plurality of thermal siphon pipes within the housing, each pipe is positioned vertically relative to the horizontal partition and has an upper portion extending toward the upper chamber and a lower portion extending toward the lower chamber, each the pipes is closed at each end and contains a heat exchange fluid, the flow of the relatively hot combustión gases through the lower portions of the pipes transfers the heat to the heat exchange fluid and the relatively cold ambient air flow through the upper portions of the pipes removes the heat from the fluid to increase the ambient air temperature. (Machine-translation by Google Translate, not legally binding)