专利汇可以提供Air heater专利检索,专利查询,专利分析的服务。并且A plurality of adjacent shell-type heat exchange shells are disposed in a furnace casing above a blower with an air passage between adjacent heat exchange shells. Each heat exchange shell includes a lower combustion chamber which opens into an intermediate heat exchange section, and a flue gas collector duct above the heat exchange section connected to a vent. Gas burners are disposed in each combustion chamber to create products of combustion which flow upwardly through each heat exchange shell. The walls of each heat exchange section are convoluted to produce a serpentine passageway with considerable heat transfer surface for the rising combustion gases. A baffle located at the inlet to the collector duct produces even gas flow through the heat exchange section and diverts gases to heat the walls of the duct. Each heat exchange shell is constructed of sheet metal and comprises a pair of complementary half-shells welded together such that an outer peripheral seam is formed. The seam follows the line of the convoluted walls of the heat exchange section to reduce thermal stresses. The heat exchange shells are mounted in the casing with the use of a floating joint to enable vertical expansion of the shells.,下面是Air heater专利的具体信息内容。
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