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公开(公告)号：US4275705A
公开(公告)日：1981-06-30
申请号：US115645
申请日：1980-01-28
CPC分类号： F24H3/065 , F24H8/00 , F28D15/02 , F28D15/0275 , F28F9/0278 , F28F2280/02 , Y02B30/102 , Y10S165/901
摘要： Improved furnaces are described in which secondary and tertiary heat exchanges are incorporated into new and existing hot-air furnace systems for controlled cooling of hot combustion products by co-current and countercurrent heat exchanges. Hot combustion products are cooled to a temperature at which latent heat of water vapor contained in combustion gases are substantially recovered.In one embodiment of our invention, a secondary heat exchanger comprises inter alia a closed hollow annular drum concentric with and spaced from a cylindrical combustion chamber, said annular drum having an upper annulus preferably filled with randomly packed refractory material.A second embodiment of our invention comprises a closed double-annuli drum heat exchanger concentric with and spaced from a cylindrical combustion chamber.Finned tube or thermosiphon heat exchangers can be arranged sequentially with the primary heat exchanger combustion chamber to function as a secondary heat exchanger or as a tertiary heat exchanger.
摘要翻译： 描述了改进的炉子，其中二次和三次热交换被并入到新的和现有的热空气炉系统中，以通过并流和逆流热交换来控制冷热燃烧产物。 将热燃烧产物冷却至燃烧气体中含有的水蒸汽的潜热基本上回收的温度。 在本发明的一个实施例中，二次热交换器尤其包括与圆柱形燃烧室同心并与其隔开的封闭的中空环形鼓，所述环形鼓具有上部环形空间，优选地填充有随机填充的耐火材料。 本发明的第二个实施例包括一个与圆柱形燃烧室同心并与之隔开的封闭的双环形鼓热交换器。 翅片管或热虹吸热交换器可以与主热交换器燃烧室相继布置，用作二次热交换器或作为第三热交换器。
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公开(公告)号：US4266513A
公开(公告)日：1981-05-12
申请号：US68132
申请日：1979-08-20
申请人： Orland O. Schaus
发明人： Orland O. Schaus
CPC分类号： F28D21/0007 , F24H1/205 , F24H9/0026
摘要： A flue heat exchanger particularly adapted for use in a water heater tank comprising a plurality of segments of a metallic or non-metallic non-friable refractory material randomly packed within a flue. Rounded metallic sections of steel pipe or copper tubing having a length not less than one-half and not more than twice the diameter of said pipe or tubing are preferred.
摘要翻译： 一种特别适用于热水器箱的烟道热交换器，其包括随机包装在烟道内的金属或非金属非易碎耐火材料的多个段。 钢管或铜管的圆形金属部分的长度不小于所述管或管的直径的一半且不大于其直径的两倍。
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