公开(公告)号：US5332497A

公开(公告)日：1994-07-26

申请号：US782136

申请日：1991-10-25

申请人： Edward M. Shea ,  J. Holland Scott

发明人： Edward M. Shea ,  J. Holland Scott

IPC分类号： B01D24/24 ,  B01D24/46 ,  B01D24/42

CPC分类号： B01D24/24 ,  B01D24/4626

摘要： A self-supporting modular underdrain member for use in a liquid filtration system comprises a main body or housing including a pair of longitudinally extending inclined walls which may have a pair of generally triangular transverse walls connecting the inclined walls to one another, the inclined walls each being provided with a pair of longitudinally extending recesses and a plurality of orifices communicating with each of the recesses. A pair of flanges are connected to the inclined walls for attaching the underdrain body to a floor surface so that the inclined walls, any transverse walls and the floor surface define a cross-sectionally triangular underdrain chamber. Two pairs of elongate cover plates are attached to the inclined walls over the recesses to form in each of the inclined walls a pair of longitudinally extending plenums for the equalization of backwash air and water flow. Each of the cover plates being provided with a plurality of spaced slots.

摘要翻译： 一种用于液体过滤系统的自支撑模块化缺水部件包括主体或壳体，该主体或壳体包括一对纵向延伸的倾斜壁，其可以具有将倾斜壁彼此连接的一对大致三角形横向壁，每个倾斜壁 设置有一对纵向延伸的凹部和与每个凹部连通的多个孔。 一对法兰连接到倾斜壁上，用于将下划线体附接到地板表面，使得倾斜壁，任何横向壁和地板表面限定横截面三角形的下划线室。 两对细长的盖板连接到凹槽上的倾斜壁上，以在每个倾斜壁中形成一对纵向延伸的气室，用于均衡反冲洗空气和水流。 每个盖板设置有多个间隔开的槽。

公开(公告)号：US5865999A

公开(公告)日：1999-02-02

申请号：US251734

申请日：1994-05-31

申请人： Edward M. Shea ,  J. Holland Scott ,  Kathleen R. Gammell

发明人： Edward M. Shea ,  J. Holland Scott ,  Kathleen R. Gammell

IPC分类号： B01D24/24 ,  B01D24/46 ,  B01D24/38

CPC分类号： B01D24/24 ,  B01D24/4626

摘要： A self-supporting modular underdrain member for use in a liquid filtration system comprises a main body or housing including a pair of longitudinally extending inclined walls which may have a pair of generally triangular transverse walls connecting the inclined walls to one another, the inclined walls each being provided with a pair of longitudinally extending recesses and a plurality of orifices communicating with each of the recesses. A pair of flanges are connected to the inclined walls for attaching the underdrain body to a floor surface so that the inclined walls, any transverse walls and the floor surface define a cross-sectionally triangular underdrain chamber. Two pairs of elongate cover plates are attached to the inclined walls over the recesses to form in each of the inclined walls a pair of longitudinally extending plenums for the equalization of backwash air and water flow, each of the cover plates being provided with a plurality of spaced slots.

摘要翻译： 一种用于液体过滤系统的自支撑模块化缺水部件包括主体或壳体，该主体或壳体包括一对纵向延伸的倾斜壁，其可以具有将倾斜壁彼此连接的一对大致三角形横向壁，每个倾斜壁 设置有一对纵向延伸的凹部和与每个凹部连通的多个孔。 一对法兰连接到倾斜的壁上，用于将下划线体附接到地板表面，使得倾斜壁，任何横向壁和地板表面限定横截面三角形的下划线室。 两对细长的盖板连接到凹部上的倾斜壁上，以在每个倾斜壁中形成一对纵向延伸的气室，用于均衡反洗空气和水的流动，​​每个盖板设置有多个 间隔开的槽。