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11 条记录 (耗时 0.013 秒)

    High efficiency cleaning of rotating filter media
    2.
    发明授权
    High efficiency cleaning of rotating filter media 有权

    公开(公告)号：US06447617B1

    公开(公告)日：2002-09-10

    申请号：US09528373

    申请日：2000-03-17

    申请人： Eugen O. Bergmann

    发明人： Eugen O. Bergmann

    IPC分类号： B08B302

    CPC分类号： B01D33/21 ,  B01D33/463 ,  B08B3/02

    摘要： In an apparatus containing rotating filter media that removes solids from a fluid stream, the invention provides devices and methods for improved cleaning of the filter media. Solids trapped on the filter media are removed by the application of a pressurized fluid spray system. The spray system has nozzles distributed across a spray arm. The nozzles create a generally elliptical spray fan pattern in contact with the filter media. The nozzles are spaced and angularly oriented on the spray arm so that adjacent spray fan contact areas overlap. This distribution and orientation equalizes the distribution of the washing flow and hydraulic energy over the filter area, thereby maintaining the filter material in a more uniformly clean and effective filtering condition.

    Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes
    5.
    发明授权
    Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes 有权
    用于在并口气/液反冲洗过程中分配气体和液体的装置，用于过滤器下降水槽

    公开(公告)号：US06306310B1

    公开(公告)日：2001-10-23

    申请号：US09627929

    申请日：2000-07-28

    申请人： Eugen O. Bergmann ,  Richard W. Hsieh ,  John Geibel

    发明人： Eugen O. Bergmann ,  Richard W. Hsieh ,  John Geibel

    IPC分类号： B01D2422

    CPC分类号： B01D24/24 ,  B01D24/4631 ,  B01D2201/48

    摘要： A concurrent backwash distribution apparatus for a filter having a filter tank and a plurality of underdrain laterals includes a baffle positioned in a common main conduit to define an auxiliary flume between the baffle and the underdrain laterals. The auxiliary flume is in fluid communication with the common main conduit and the underdrain laterals. The baffle has at least one flume liquid metering orifice preferably located near the bottom of the baffle so that it may be below a gas/liquid interface in the auxiliary flume during concurrent gas/liquid backwash operations. A flow distribution plate may be positioned between the auxiliary flume and the underdrain laterals, the flow distribution plate having at least one liquid metering orifice and at least one gas metering orifice. The baffle may take one of many forms. The baffle creates an adequate liquid pool in the common main conduit for low velocity flow of backwash liquid while at the same time providing uninhibited flow of backwash gas. Maldistribution is thereby controlled. Stand-pipes may be used in place of the baffle. A method for concurrent gas/liquid backwash according to the invention is also disclosed. The invention may be applied to flat bottom flumes or insufficiently recessed flumes.

    摘要翻译： 一种用于具有过滤罐和多个下划线的过滤器的反冲洗分配装置包括位于公共主管道中的挡板，以在挡板和暗渠之间限定辅助槽。 辅助水槽与公共主导管和暗渠相通。 挡板具有至少一个槽口液体计量孔口，优选地位于挡板的底部附近，使得其可以在并行气/液反冲洗操作期间在辅助槽中的气体/液体界面的下方。 流量分配板可以位于辅助水槽和暗渠之间，流量分配板具有至少一个液体计量孔和至少一个气体计量孔。 挡板可能采取许多形式之一。 挡板在公共主管道中产生足够的液体池，用于反冲洗液体的低速流动，同时提供反冲洗气体的不受限制的流动。 因此可以控制错配。 可以使用支管代替挡板。 还公开了根据本发明的同时气/液反冲洗的方法。 本发明可以应用于平底凹槽或凹陷不足的凹槽。

    High efficiency backwash shoe
    6.
    发明授权
    High efficiency backwash shoe 有权
    高效回洗鞋

    公开(公告)号：US06294098B1

    公开(公告)日：2001-09-25

    申请号：US09576699

    申请日：2000-05-23

    申请人： Eugen O. Bergmann

    发明人： Eugen O. Bergmann

    IPC分类号： B01D3350

    CPC分类号： B01D33/21 ,  B01D33/503

    摘要： In an apparatus containing rotating filter media that removes solids from a fluid stream, the invention provides devices and methods for improved cleaning of the filter media. Solids trapped on the filter media are removed by the application of a suction pressure that draws the filter media into contact with a backwash shoe. The backwash shoe has one or more orifice slots in a radially tapered or oblique angular configuration or in a combination of radially tapered and oblique angular configurations. The orifice slot configuration creates an hydraulic condition where the unit of orifice area applied per unit filter area has a generally uniform ratio across the rotating filter media. This configuration equalizes the distribution of the backwash flow over the filter area, thereby maintaining the filter media in a more uniformly clean and effective filtering condition.

    摘要翻译： 在包含从流体流中除去固体的旋转过滤介质的装置中，本发明提供了用于改进过滤介质清洁的装置和方法。 捕获在过滤介质上的固体通过施加抽吸压力来除去，该抽吸压力使过滤介质与反洗的鞋接触。 回洗鞋具有一个或多个径向渐缩或倾斜角配置的孔槽或径向锥形和倾斜角配置的组合。 孔口槽结构形成液压状态，其中每单位过滤区域施加的孔面积单位在旋转过滤介质上具有大致均匀的比率。 该配置使过滤区域上的回洗流的分布相等，从而将过滤介质保持在更均匀的清洁和有效的过滤条件。

    Mutli-lateral filter underdrain block
    8.
    发明授权
    Mutli-lateral filter underdrain block 失效
    多侧过滤器漏斗块

    公开(公告)号：US5328608A

    公开(公告)日：1994-07-12

    申请号：US889176

    申请日：1992-05-27

    申请人： Eugen O. Bergmann ,  Marvin A. Brown ,  Beverly Richard P.

    发明人： Eugen O. Bergmann ,  Marvin A. Brown ,  Beverly Richard P.

    IPC分类号： E03F3/04 ,  B01D24/24 ,  B01D24/12 ,  B01D24/22

    CPC分类号： B01D24/24

    摘要： An improvement for a filter system which distributes backwash fluid uniformly throughout a bed of granular media is disclosed. The filter system includes a distributor positioned beneath and supporting the media, with the distributor having a plurality of walls which define a primary horizontal conduit and a secondary horizontal conduit. At least one of the walls which define the conduits contains metering orifices that connect the primary conduit to the secondary conduit. The improvement includes at least one baffle positioned within the primary conduit to facilitate uniform flow of backwash fluid from the primary conduit through the metering orifices into the secondary conduit. The baffle may comprise flanges extending from the walls which define the primary conduit normal to a fluid flow direction in the conduit. Alternatively, the baffle may include posts positioned within the conduit. The baffle generally reduces flow velocity near the wall which contains the metering orifices to enhance distribution of backwash fluids from the primary conduit to the secondary conduit. The baffle is preferably located near an inlet for the primary conduit, which is the high energy portion of the conduit. The invention also includes tubular inserts which may be placed in the metering orifices to assist backwash fluid flow in making the 90 degree turn from the primary conduit into the metering orifices.

    摘要翻译： 公开了一种将反洗液均匀分布在整个颗粒介质床上的过滤系统的改进。 过滤器系统包括位于介质的下方并支撑介质的分配器，其中分配器具有限定主要水平导管和次级水平导管的多个壁。 限定导管的至少一个壁包含将主导管连接到次级导管的计量孔。 该改进包括至少一个位于主导管内的挡板，以便反冲洗流体从主导管通过计量孔均匀流动到次级管道中。 挡板可以包括从壁延伸的凸缘，其限定与管道中的流体流动方向垂直的主要导管。 或者，挡板可以包括定位在导管内的柱。 挡板通常减少包含计量孔的壁附近的流速，以增强反冲洗流体从主管道到次级管道的分配。 挡板优选位于主导管的入口附近，主导管是导管的高能部分。 本发明还包括管状插入件，其可以放置在计量孔中以帮助反冲洗流体在从主导管进入计量孔的90度转弯中流动。

    High efficiency cleaning of rotating filter media
    9.
    发明授权
    High efficiency cleaning of rotating filter media 有权

    公开(公告)号：US06634372B2

    公开(公告)日：2003-10-21

    申请号：US10000610

    申请日：2001-10-24

    申请人： Eugen O. Bergmann

    发明人： Eugen O. Bergmann

    IPC分类号： B08B302

    CPC分类号： B01D33/21 ,  B01D33/463 ,  B08B3/02

    摘要： In an apparatus containing rotating filter media that removes solids from a fluid stream, the invention provides devices and methods for improved cleaning of the filter media. Solids trapped on the filter media are removed by the application of a pressurized fluid spray system. The spray system has nozzles distributed across a spray arm. The nozzles create a generally elliptical spray fan pattern in contact with the filter media. The nozzles are spaced and angularly oriented on the spray arm so that adjacent spray fan contact areas overlap. This distribution and orientation equalizes the distribution of the washing flow and hydraulic energy over the filter area, thereby maintaining the filter material in a more uniformly clean and effective filtering condition.

    Apparatus and method for improving gas backwash in lateral underdrains
    10.
    发明授权
    Apparatus and method for improving gas backwash in lateral underdrains 失效
    改善侧向排水中气体回洗的装置和方法

    公开(公告)号：US5639384A

    公开(公告)日：1997-06-17

    申请号：US596548

    申请日：1996-02-05

    申请人： Marvin A. Brown ,  Eugen O. Bergmann ,  Richard Hsieh

    发明人： Marvin A. Brown ,  Eugen O. Bergmann ,  Richard Hsieh

    IPC分类号： B01D24/38 ,  B01D24/24 ,  B01D24/46 ,  B01D29/88

    CPC分类号： B01D24/24

    摘要： An apparatus and method for gas backwashing a granular media supported upon a lateral underdrain is disclosed. The lateral underdrain includes a plurality of dispersion apertures therethrough and at least one liquid return conduit extending to a discharge at a level below the dispersion apertures. The present invention provides for equal distribution of backwash gas across the entire lateral underdrain by directing backwash gas through the dispersion apertures into the granular media and directing liquid from the granular media through the liquid return conduit without obstructing backwash gas flow through said apertures from a gas pocket formed underneath said apertures.

    摘要翻译： 公开了一种用于气体反冲洗支撑在侧面欠划线上的颗粒介质的装置和方法。 侧面缺面包括通过其中的多个分散孔和至少一个液体返回导管，其延伸到低于分散孔的水平处。 本发明通过将反冲洗气体通过分散孔引导到颗粒介质中并引导来自颗粒介质的液体通过液体返回导管而不阻碍来自气体的反冲洗气体流过所述孔，从而使反洗气体在整个横向暗下的均匀分布 口袋形成在所述孔下面。