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1. 发明申请

US20120067808A1 FILTRATION APPARATUS AND PROCESS WITH REDUCED FLUX IMBALANCE 审中-公开
标题翻译：过滤装置和工艺流量减少
公开(公告)号：US20120067808A1
公开(公告)日：2012-03-22
申请号：US12883238
申请日：2010-09-16
申请人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen J. BHARWADA
发明人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen J. BHARWADA
IPC分类号： C02F1/44 , B01D65/00 , B01D63/00 , B01D63/12
CPC分类号： B01D61/06 , B01D63/12 , B01D2313/246 , B01D2319/022 , B64D17/64 , B64D17/70 , B64D17/72
摘要： A filtration apparatus includes plurality of membrane modules arranged in series in a chamber. The membrane modules include at least one lead membrane module closer to an inlet port than the remaining membrane modules. A device coupled to the permeate collection conduit of the at least one lead membrane module is configured to apply a back pressure to permeate solution flowing in the permeate collection conduit of the at least one lead membrane module. By applying a back pressure, flux imbalance may be reduced within the apparatus.
摘要翻译：过滤装置包括串联设置在室中的多个膜组件。膜组件包括比剩余的膜组件更靠近入口的至少一个铅膜组件。耦合到所述至少一个铅膜模块的渗透物收集管道的装置构造成对在至少一个铅膜组件的渗透物收集管道中流动的渗透液施加背压。通过施加背压，在装置内可能减少通量不平衡。

2. 发明申请

US20120228208A1 INTERCONNECTOR FOR FILTRATION APPARATUS WITH REDUCED PERMEATE PRESSURE LOSS 审中-公开
标题翻译：用于过滤装置的互连器具有降低的渗透压力损失
公开(公告)号：US20120228208A1
公开(公告)日：2012-09-13
申请号：US13046355
申请日：2011-03-11
申请人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen J. BHARWADA
发明人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen J. BHARWADA
IPC分类号： B01D63/00 , B01D61/14 , B01D63/12 , B01D61/08
CPC分类号： B01D63/106 , B01D63/12 , B01D2313/13
摘要： An interconnector coupling permeate conduits in a filtration apparatus includes a diverging section. The diverging section defines a generally increasing cross sectional area for the permeate solution exiting the interconnector in a direction of flow from the permeate conduit of a first separation element to a permeate conduit of a second separation element. The diverging section provides a more gradual divergence of the permeate solution to reduce pressure losses.
摘要翻译：在过滤装置中连接渗透管道的互连器包括发散部分。发散部分限定了从第一分离元件的渗透管道到第二分离元件的渗透管道的流动方向离开互连器的渗透液的通常增加的横截面面积。分流部分提供渗透液解决方案的逐渐发散以减少压力损失。

3. 发明申请

US20130146540A1 SYSTEM AND PROCESS FOR TREATING WATER AND SPIRAL WOUND MEMBRANE ELEMENT 审中-公开
标题翻译：用于处理水和螺旋膜元件的系统和过程
公开(公告)号：US20130146540A1
公开(公告)日：2013-06-13
申请号：US13315731
申请日：2011-12-09
申请人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA
发明人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA
IPC分类号： C02F1/44 , B01D63/12 , B01D61/02 , B01D65/00
CPC分类号： B01D63/10 , B01D2313/143 , B01D2319/022
摘要： A spiral would membrane element has a feed channel spacer providing a tortuous feed flow path through an open spacer mesh material. The feed flow path may force the feed liquid to flow across substantially all of an adjacent membrane surface. The length of the flow path and average cross-flow velocity are increased relative to a straight flow path. A rise in pressure drop that might otherwise be produced by the increased average cross-flow velocity is reduced by the open spacer mesh. In a system having two or more upstream and downstream spiral wound membrane elements, a downstream element may have a feed channel spacer providing a tortuous flow path while an upstream element has a feed channel spacer providing a less tortuous flow path or a straight flow path.
摘要翻译：螺旋形的膜元件具有供给通道间隔件，其通过开放间隔物网状材料提供曲折的进料流动路径。进料流动路径可以迫使进料液体基本上跨过相邻的膜表面流动。流路的长度和平均交叉流速相对于直流路径增加。通过开放的间隔网可以减小由平均交叉流速增加而产生的压降的上升。在具有两个或更多个上游和下游螺旋缠绕膜元件的系统中，下游元件可以具有提供曲折流动路径的进料通道间隔件，而上游元件具有供给通道间隔件，其提供较不曲折的流动路径或直流通道。

4. 发明申请

US20130098831A1 MATERIAL EFFICIENCY AND FABRICATION OF MEMBRANE ELEMENTS 有权
标题翻译：膜元素的材料效率和制备
公开(公告)号：US20130098831A1
公开(公告)日：2013-04-25
申请号：US13473252
申请日：2012-05-16
申请人： Prashant Vishwanath SHRIKHANDE , Steven John HARROLD , Cha MOUA , Phillip GOEBEL , Yatin TAYALIA , Prasanna Rao DONTULA
发明人： Prashant Vishwanath SHRIKHANDE , Steven John HARROLD , Cha MOUA , Phillip GOEBEL , Yatin TAYALIA , Prasanna Rao DONTULA
IPC分类号： B01D63/10 , B32B37/10 , B32B37/12
CPC分类号： B01D65/003 , B01D63/10 , B01D63/103 , B01D2313/04 , B01D2313/143 , B01D2313/146 , B29C53/562 , B29C65/48 , B29C66/20 , B29L2031/14 , B32B37/1292
摘要： Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.
摘要翻译：使用多个膜叶的膜元件可能具有有限的总活性膜面积，这是由于元件末端的直径增加。膜叶可以包括位于一个或多个膜片之间的渗透物载体。粘合剂可用于密封膜叶的一个或多个边缘。膜片，渗透物载体和粘合剂有助于膜片边缘的厚度和元件末端的直径。渗透物载体的边缘的减小的厚度可以减小元件末端处的直径。还可以使用另外的渗透载体片，其与膜片的至少一个边缘隔开，因此渗透物载体片材不会在元件的端部处增加直径。

5. 发明申请

US20130101797A1 SPIRAL WOUND MEMBRANE PERMEATE CARRIER WITH THIN BORDER 有权
标题翻译：螺旋膜膜薄膜带薄边
公开(公告)号：US20130101797A1
公开(公告)日：2013-04-25
申请号：US13276802
申请日：2011-10-19
申请人： Prasanna Rao DONTULA , Yatin TAYALIA , Phillip GOEBEL
发明人： Prasanna Rao DONTULA , Yatin TAYALIA , Phillip GOEBEL
IPC分类号： B01D17/12 , B32B37/10 , B29C63/10 , B32B3/02
CPC分类号： B01D63/103 , B01D63/10 , B01D2313/146 , B01D2325/08 , Y10T156/10 , Y10T428/24488 , Y10T428/2457 , Y10T428/24612 , Y10T428/24777
摘要： A permeate carrier to be described in detail below has side edges, alternatively called borders, that are thinner than a central part of the permeate carrier. Adhesive is applied to the side edges to form a seal when a membrane leaf is formed around the permeate carrier. After the membrane leaf is wound around a central tube, the side edges extend in a spiral around the central tube. The transition between the side edges and the central part of the permeate carrier helps prevent adhesive from flowing into the central part of the permeate carrier. The reduced thickness of the side edges also reduces an increase in diameter at the ends of an element that might otherwise be caused by the adhesive.
摘要翻译：要在下面详细描述的渗透载体具有比渗透物载体的中心部分更薄的侧边缘，或者称为边界。当在渗透物载体周围形成膜叶时，将粘合剂施加到侧边缘以形成密封。膜片围绕中心管缠绕后，侧边缘围绕中心管以螺旋形延伸。渗透物载体的侧边缘和中心部分之间的过渡有助于防止粘合剂流入渗透物载体的中心部分。侧边缘的减小的厚度还降低了可能由粘合剂引起的元件的端部处的直径增加。

6. 发明申请

US20130146532A1 FEED SPACER FOR SPIRAL WOUND MEMBRANE ELEMENT 审中-公开
标题翻译：螺旋膜元件的进料间隔件
公开(公告)号：US20130146532A1
公开(公告)日：2013-06-13
申请号：US13316011
申请日：2011-12-09
申请人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA
发明人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA
IPC分类号： B01D65/00 , B29C43/24 , C02F1/44
CPC分类号： B01D63/10 , B01D2313/143 , B29C53/24 , B29K2023/12
摘要： A feed channel spacer for use in a spiral wound membrane element provides a series of generally parallel interior channels. The interior channels extend from an inlet side of the spacer to an outlet side of the spacer, but follow an undulating or zigzagging path. Dean's vortices or other flow patterns that cause mixing reduce concentration polarization. The feed channel spacer is made by pressing a sheet of thermoplastic material in a die.
摘要翻译：用于螺旋缠绕膜元件的进料通道间隔件提供一系列大致平行的内部通道。内部通道从间隔件的入口侧延伸到间隔件的出口侧，但是遵循起伏或锯齿形路径。 Dean的涡流或其他流动模式引起混合降低浓度极化。进料通道间隔件通过在模具中挤压热塑性材料片而制成。

7. 发明申请

US20130146531A1 FEED SPACERS FOR SPIRAL WOUND MEMBRANE ELEMENT 审中-公开
标题翻译：螺旋膜元件的进料间隔
公开(公告)号：US20130146531A1
公开(公告)日：2013-06-13
申请号：US13315423
申请日：2011-12-09
申请人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen Jayant BHARWADA
发明人： Yatin TAYALIA , Prasanna Rao DONTULA , Upen Jayant BHARWADA
IPC分类号： B01D63/00 , B29C43/02
CPC分类号： B01D63/00 , B01D63/10 , B01D2313/143
摘要： A feed channel spacer for a spiral wound membrane element has inlet and outlet edges that are thinner than the rest of the spacer material. The edges may be made thinner, for example, by passing the edges of a sheet of feed spacer material through a pair of hot rollers or by compressing the edges of the sheet in a heated press. The thinned edges of the feed spacer material are located in the element between glue lines applied to the permeate spacers of the element. The thin edges allow a greater membrane surface area to be provided in a given element diameter. A feed channel spacer may also have an area with obstructions to create micro-mixing effects. These obstructions may be provided on a feed spacer sheet of constant thickness, or one with thin edges.
摘要翻译：用于螺旋缠绕膜元件的进料通道间隔件具有比间隔物材料的其余部分更薄的入口和出口边缘。边缘可以做得更薄，例如通过使一片进料间隔材料的边缘通过一对热辊或通过在加热的压榨机中压缩片材的边缘。进料间隔材料的变薄的边缘位于施加到元件的渗透物间隔物的胶线之间的元件中。薄边缘允许在给定的元件直径中提供更大的膜表面积。进料通道间隔物也可以具有阻碍物的区域以产生微混合效果。这些障碍物可以设置在恒定厚度的进料间隔片或具有薄边缘的进料间隔片上。

8. 发明申请

US20130098829A1 SPIRAL WOUND MEMBRANE ELEMENT AND PERMEATE CARRIER 审中-公开
标题翻译：螺旋膜元件和透气载体
公开(公告)号：US20130098829A1
公开(公告)日：2013-04-25
申请号：US13276901
申请日：2011-10-19
申请人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA , Jayaprakash Sandhala RADHAKRISHNAN , Muralidhar PATNAM
发明人： Prasanna Rao DONTULA , Yatin TAYALIA , Upen Jayant BHARWADA , Jayaprakash Sandhala RADHAKRISHNAN , Muralidhar PATNAM
IPC分类号： B01D69/04 , B32B5/02 , B01D63/10
CPC分类号： B01D63/103 , B01D63/10 , B01D69/105 , B01D2313/146 , Y10T428/24562 , Y10T442/2484
摘要： A permeate carrier for a spiral wound membrane element has two or three layers, for example of tricot construction. The two outer, or only, layers resist movement of the membrane sheet into permeate channels in the permeate carrier. The total thickness of the permeate carrier sheet may be similar to the thickness of typical tricot permeate carrier sheets. The permeate carrier sheet may be coated to make its surfaces hydrophilic. The coating may be, for example, a cross-linked polyvinyl alcohol (PVA) or polyvinyl pyrrolidone (PVP). In the spiral wound element, a permeate carrier sheet may be wrapped in one or more layers around a central tube. Channels in the permeate carrier sheet are oriented helically relative to a longitudinal axis of the central tube.
摘要翻译：用于螺旋缠绕膜元件的渗透物载体具有两层或三层，例如经编织物构造。两个外层或仅有的层阻止膜片移动到渗透物载体中的渗透通道中。渗透物载体片材的总厚度可以类似于典型的经编渗透物载体片材的厚度。渗透载体片可以被涂覆以使其表面亲水。涂层可以是例如交联的聚乙烯醇（PVA）或聚乙烯吡咯烷酮（PVP）。在螺旋缠绕元件中，渗透物载体片可围绕中心管缠绕成一层或多层。渗透载体片中的通道相对于中心管的纵轴为螺旋形取向。

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