公开(公告)号：US4048962A

公开(公告)日：1977-09-20

申请号：US684793

申请日：1976-05-10

申请人： Stanley Pristelski

发明人： Stanley Pristelski

IPC分类号： F22B37/02 ,  F22D1/24 ,  F28D21/00 ,  F22B33/00 ,  F22D1/02

CPC分类号： F28D21/0007 ,  F22B37/025 ,  F22D1/24

摘要： Apparatus interposed in a smoke flue between a furnace and a chimney for recovering energy from smoke and heating water therewith. A tank contains a volume of water to be heated. A water inlet and a water outlet supply cold water to the tank and discharge heated water. A plurality of heat exchanging tubes extends through the interior of the tank such that the ends communicate with opposite exterior surfaces of the tank or extend outwardly therefrom. A plurality of sleeves, one for each tube, has an outside diameter slightly less than the inside diameter of the tubes such that each sleeve is positioned within one of the tubes in concentric manner and sealed to the ends of the tube to define an annular air space there-between. Expanding and reducing elements provide gaseous communication between the flue and the plurality of sleeves. The sum of the cross-sectional areas of the plurality of sleeves equals or exceeds the cross-sectional area of the smoke flue such that normal convection of smoke within the flue is not restricted. The sleeves have a plurality of small apertures therethrough, thereby permitting limited gaseous communication with the annular air space for greater heat exchanging efficiency. A by-pass flue, first normally-open damper in the smoke flue between the expanding element and the by-pass flue and a second normally-closed damper in the by-pass flue change positions and divert smoke through the by-pass flue when the water in the tank is heated to a predetermined temperature.

摘要翻译： 设置在炉和烟囱之间的烟道中的装置，用于从烟气中回收能量并用其加热水。 罐内装有一定体积的待加热水。 进水口和出水口向储罐供水并排放加热水。 多个热交换管延伸穿过罐的内部，使得端部与罐的相对的外表面连通或从其向外延伸。 多个套筒（每个管子一个）具有略小于管子内径的外径，使得每个套管以同心方式定位在一个管内，并密封到管的端部以限定环形空气 之间的空间。 膨胀和还原元件在烟道和多个套筒之间提供气体连通。 多个套筒的横截面面积的总和等于或超过烟道的横截面面积，使得烟道内的烟雾的正常对流不受限制。 套管具有多个通过其的小孔，从而允许与环形空气空间有限的气体连通，以获得更大的热交换效率。 旁路烟道，膨胀元件和旁路烟道之间的烟道中的第一常开阻尼器和旁路烟道中的第二常闭风门改变位置并通过旁路烟道转移烟气， 将罐中的水加热至预定温度。