公开(公告)号：US4096068A

公开(公告)日：1978-06-20

申请号：US715998

申请日：1976-08-19

Applicant: James Donald Walker

Inventor： James Donald Walker

IPC: B01D24/24 ,  B28B1/14 ,  B01D23/18

CPC classification number: B01D24/4636 ,  B01D24/24 ,  B01D2201/087

Abstract: Pre-cast concrete beams for supporting a filterbed have deep downwardly extending flanges for providing an underchannel lengthwise of the beam. The beams generally extend across a flume. For backwashing with an air-water mixture, air should be supplied at substantially the same rate to all of the channels. Cross passages between the channels are an aid to this even distribution. Heretofore, special molding procedures for providing the passages or limbers through the beam flanges have increased manufacturing costs. According to the present invention, such passages are provided without extra molding steps and without extra cost by following a delightfully simple concept of merely omitting the end portions of the flanges where beam strength is not required. The end portion projecting beyond the flanges may have a leg across its end to ensure support and aid sealing.

Abstract translation: 用于支撑滤床的预制混凝土梁具有深的向下延伸的法兰，用于在梁的纵向方向上提供低通道。 梁通常延伸穿过水槽。 对于使用空气 - 水混合物进行回洗，应以基本相同的速率向所有通道提供空气。 通道之间的交叉通道是对这种均匀分布的帮助。 迄今为止，用于通过梁法兰提供通道或混凝土的特殊的成型程序增加了制造成本。 根据本发明，这种通道在没有额外的模制步骤的情况下被提供，并且通过遵循仅仅省略不需要束强度的法兰的端部的令人愉快的简单概念而不需要额外的成本。 突出超过凸缘的端部可以在其端部上具有腿部以确保支撑和辅助密封。

公开(公告)号：US4048267A

公开(公告)日：1977-09-13

申请号：US453260

申请日：1974-03-21

Applicant: James Donald Walker ,  Leslie F. Kline

Inventor： James Donald Walker ,  Leslie F. Kline

IPC: B01F3/04 ,  C02F3/20

CPC classification number: C02F3/203 ,  B01F3/04113 ,  B01F2003/04234 ,  Y02W10/15 ,  Y10S261/47

Abstract: The downcomer through which air is supplied to a header for liberation of air deep in an aeration tank is of straight-line nature to minimize constant waste of power due to air flow friction. The downcomer nevertheless folds when the header is to be raised for inspection or servicing. The folding axis is external of the downcomer, which breaks open as the folding action starts. In one form the header is straight while initially raised, hanging from a first hoist cable, and then as the lower section is raised further by a second cable the upper section is allowed to fold over. In another form, the folding progresses as the structure is raised, the upper section being hinged to the air supply fitting.

Abstract translation: 将空气供给到用于释放曝气池深部的空气的头部的降液管具有直线性质，以最小化由于气流摩擦而引起的功率的不断浪费。 然而，降低管道在抬起头部进行检查或维修时会折叠。 折叠轴是降液管的外部，折叠动作开始时打开。 在一种形式中，头部是直的，最初升起，悬挂在第一葫芦电缆上，然后当下部通过第二缆线进一步升高时，上部被允许折叠。 在另一种形式中，当结构升高时，折叠进行，上部铰接到供气配件。

公开(公告)号：US3954922A

公开(公告)日：1976-05-04

申请号：US446705

申请日：1974-02-28

Applicant: James Donald Walker ,  Richard R. Bridge

Inventor： James Donald Walker ,  Richard R. Bridge

IPC: B01F3/04 ,  C02F3/20

CPC classification number: C02F3/20 ,  B01F3/04255 ,  Y02W10/15 ,  Y10S261/47 ,  Y10S261/70

Abstract: Diffusers on the bottom of a submerged header each include coarse bubble orifices which discharge a stream of air to form a bubble or film on the underside of a horizontal spreader at the edges of which the bubble is sheared by flowing water into multitudinous tiny bubblets rising in the surrounding liquid as a cloud. A second horizontal spreader, slightly above the first, has a similar action, shearing into fine bubblets any larger bubbles which escape from the first spreader to the second. Edges are staggered to supply air to different parts of the water flow. The rising bubblets set up a conventional rolling action in the body of liquid. It is this rolling action which produces the flow of water past the spreaders to shear the bubbles at their edges. A snap-in screw-tightened band secures each diffuser to the header.

Abstract translation: 淹没头部底部的扩散器各自包括粗气泡孔，其排出空气流以在水平撒布机的下侧形成气泡或薄膜，在其边缘处，气泡通过将水流入多个微小的泡沫而被剪切， 周围的液体如云。 第二个水平吊具，略高于第一个，具有类似的动作，剪切任何更大的泡沫，从第一个吊具逃脱到第二个。 边缘交错以将空气供应到水流的不同部分。 上升的泡沫在液体中建立常规的滚动动作。 正是这种滚动动作产生水流过吊具以在其边缘处剪切气泡。 卡扣式螺丝紧固带将每个扩散器固定在接头上。