公开(公告)号：US4397225A

公开(公告)日：1983-08-09

申请号：US277178

申请日：1981-06-25

申请人： Lawrence C. Patton

发明人： Lawrence C. Patton

IPC分类号： F23L17/08 ,  F23L17/02

CPC分类号： F23L17/08

摘要： The present invention involves a draft stabilizing device mounted at the exit end of a draft vent or stack. The device is constructed from first and second cap members made in the form of open-bottomed cones which are substantially broader at their bases than they are high. The cones are joined together at their edges with their axes aligned. The lower cone has a large stack inlet opening at its apex which is connected to a stack. The lower cone also includes a plurality of outlet openings around its periphery. The area of the outlet openings exceeds the cross-sectional area of the stack.

摘要翻译： 本发明涉及一种安装在通风口或堆叠的出口端的吃水稳定装置。 该装置由开口锥体形式制成的第一和第二盖构件构成，它们的底部基本上比它们的高度大得多。 锥体在它们的边缘处被连接在一起，并且它们的轴对齐。 下锥体在其顶点具有大的堆叠入口开口，其连接到堆叠。 下锥体还包括围绕其周边的多个出口开口。 出口开口的面积超过堆叠的横截面面积。