公开(公告)号：US20060169580A1

公开(公告)日：2006-08-03

申请号：US11291526

申请日：2005-12-01

Applicant: Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

Inventor： Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

IPC: C25B9/08

CPC classification number: C02F1/4695 ,  B01D61/46 ,  B01D61/48 ,  B01D61/52 ,  B01D63/10 ,  B01J47/08 ,  C02F2001/46152 ,  C02F2201/003 ,  C02F2201/4611

Abstract: EDI apparatus for demineralizing a liquid flow is assembled in a housing having a cylindrical shape, and includes two metal electrodes, and one or more leafs, each leaf comprising a pair of selectively ion-permeable membranes arranged parallel to each other and spaced apart by spacing elements that allow liquid to flow in the interstitial space between membranes, thus forming an arrangement of dilute and concentrate cells in a desired flow configuration. Spacing elements between membranes, as well as between leaves, can be formed of inert polymer material, ion exchange beads, ion exchange fibers, a combination of two or more these elements, or a porous media incorporating one or more of such elements as an intrinsic part. An inner or central electrode and an outer or perimeter electrode establish a generally uniform and radially-oriented electrical or ionic current between the inner and the outer electrodes, across the helical flow spaces defined by the membrane/spacer windings. One or both electrodes may include a pocket, and the adjacent flow cells lie parallel to the electrode and free of shadowing and field inhomogeneity around a full circumference of the electrode. Flow paths within the helical cells are defined by barrier seals, which may form a path-lengthening maze, while unfilled cell regions may disperse or collect flow within a cell and define pressure gradients promote directional flows. Impermeable barriers between membranes further prevent the feed and concentrate flows from mixing. In various embodiments, seals along or between portions of the flow path may define a multi-stage device, may define separate feed and/or concentrate flows for different stages, and/or may direct the feed and concentrate flows along preferred directions which may be co-current, counter-current or cross-current with respect to each other within the apparatus.

Abstract translation: 用于使液体流动脱矿质的EDI装置组装在具有圆柱形形状的壳体中，并且包括两个金属电极和一个或多个叶片，每个叶片包括一对彼此平行布置的间隔开的间隔开的间隔开的选择性离子渗透膜 允许液体在膜之间的间隙空间中流动的元件，从而在期望的流动构型中形成稀释和浓缩细胞的排列。 膜之间以及叶之间的间隔元件可以由惰性聚合物材料，离子交换珠，离子交换纤维，两种或更多种这些元素的组合形成，或多种介质结合一种或多种这样的元素，如内在的 部分。 内部或中心电极和外部或周边电极在内部和外部电极之间跨越由膜/间隔件绕组限定的螺旋流动空间建立大致均匀且径向取向的电或离子电流。 一个或两个电极可以包括袋，并且相邻的流动池平行于电极并且在电极的整个周围没有阴影和场不均匀性。 螺旋细胞内的流动路径由阻挡密封件限定，其可以形成路径延长迷宫，而未填充的细胞区域可以在细胞内分散或收集流动并且限定压力梯度促进定向流动。 膜之间的不渗透屏障进一步防止了进料和浓缩物的流动。 在各种实施例中，沿着流动路径的部分或之间的密封件可以限定多级装置，可以为不同的级限定单独的进料和/或浓缩物流，和/或可以将进料和浓缩物流沿着优选的方向引导， 在设备内相互相互并流，逆流或交叉电流。

公开(公告)号：US20060163056A1

公开(公告)日：2006-07-27

申请号：US11291528

申请日：2005-12-01

Applicant: Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

Inventor： Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

IPC: C25C7/02

CPC classification number: C02F1/4695 ,  B01D61/46 ,  B01D61/48 ,  B01D61/52 ,  B01D63/10 ,  B01J47/08 ,  C02F2001/46152 ,  C02F2201/003 ,  C02F2201/4611

Abstract: EDI apparatus for demineralizing a liquid flow is assembled in a housing having a cylindrical shape, and includes two metal electrodes, and one or more leafs, each leaf comprising a pair of selectively ion-permeable membranes arranged parallel to each other and spaced apart by spacing elements that allow liquid to flow in the interstitial space between membranes, thus forming an arrangement of dilute and concentrate cells in a desired flow configuration. Spacing elements between membranes, as well as between leaves, can be formed of inert polymer material, ion exchange beads, ion exchange fibers, a combination of two or more these elements, or a porous media incorporating one or more of such elements as an intrinsic part. An inner or central electrode and an outer or perimeter electrode establish a generally uniform and radially-oriented electrical or ionic current between the inner and the outer electrodes, across the helical flow spaces defined by the membrane/spacer windings. One or both electrodes may include a pocket, and the adjacent flow cells lie parallel to the electrode and free of shadowing and field inhomogeneity around a full circumference of the electrode. Flow paths within the helical cells are defined by barrier seals, which may form a path-lengthening maze, while unfilled cell regions may disperse or collect flow within a cell and define pressure gradients promote directional flows. Impermeable barriers between membranes further prevent the feed and concentrate flows from mixing. In various embodiments, seals along or between portions of the flow path may define a multi-stage device, may define separate feed and/or concentrate flows for different stages, and/or may direct the feed and concentrate flows along preferred directions which may be co-current, counter-current or cross-current with respect to each other within the apparatus.

Abstract translation: 用于使液体流动脱矿质的EDI装置组装在具有圆柱形形状的壳体中，并且包括两个金属电极和一个或多个叶片，每个叶片包括一对彼此平行布置的间隔开的间隔开的间隔开的选择性离子渗透膜 允许液体在膜之间的间隙空间中流动的元件，从而在期望的流动构型中形成稀释和浓缩细胞的排列。 膜之间以及叶之间的间隔元件可以由惰性聚合物材料，离子交换珠，离子交换纤维，两种或更多种这些元素的组合形成，或多种介质结合一种或多种这样的元素，如内在的 部分。 内部或中心电极和外部或周边电极在内部和外部电极之间跨越由膜/间隔件绕组限定的螺旋流动空间建立大致均匀且径向取向的电或离子电流。 一个或两个电极可以包括袋，并且相邻的流动池平行于电极并且在电极的整个周围没有阴影和场不均匀性。 螺旋细胞内的流动路径由阻挡密封件限定，其可以形成路径延长迷宫，而未填充的细胞区域可以在细胞内分散或收集流动并且限定压力梯度促进定向流动。 膜之间的不渗透屏障进一步防止了进料和浓缩物的流动。 在各种实施例中，沿着流动路径的部分或之间的密封件可以限定多级装置，可以为不同的级限定单独的进料和/或浓缩物流，和/或可以将进料和浓缩物流沿着优选的方向引导， 在设备内相互相互并流，逆流或交叉电流。

公开(公告)号：US20070051684A1

公开(公告)日：2007-03-08

申请号：US10527766

申请日：2003-09-12

Applicant: Vladimir Grebenyuk ,  William Carson ,  Oleg Grebenyuk ,  Keith Sims ,  Russell MacDonald

Inventor： Vladimir Grebenyuk ,  William Carson ,  Oleg Grebenyuk ,  Keith Sims ,  Russell MacDonald

IPC: C02F1/42 ,  B01D71/82

CPC classification number: C02F1/4695 ,  B01D61/48 ,  B01D2313/30 ,  B01J47/08 ,  C02F2201/46115 ,  C02F2303/16

Abstract: An electrodeionization, (EDI) apparatus has flow cells with a sparse distribution of ion exchange (IX) material or beads. The beads extend between membranes defining opposed walls of the cell to separate and support the membranes, and form a layer substantially free of bead-to-bead dead-end reverse junctions. The beads enhance capture of ions from surrounding fluid in dilute cells, and do not throw salt when operating current is increased. In concentrating cells, the sparse bead filling provides a stable low impedance bridge to enhanced power utilization in the stack. A monotype sparse filling may be used in concentrate cells, while mixed, layered, striped, graded or other beads may be employed in dilute cells. Ion conduction paths are no more than a few grains long and the lower packing density permits effective fluid flow. A flow cell thickness may be below one millimeter, and the beads may be discretely spaced, form a mixed or patterned monolayer, or form an ordered bilayer, and a mesh having a lattice spacing comparable to or of the same order of magnitude as resin grain size, may provide a distributed open support that assures a stable distribution of the sparse filling, and over time maintains the initial balance of uniform conductivity and good through-flow. The cells or low thickness and this resin layers relax stack size and power supply constraints, while providing treatment efficiencies and process stability. Reduced ion migration distances enhance the ion removal rate without reducing the product flow rate. The sparse resin bed may be layered, graded along the length of the path, striped or otherwise patterned. Inter-grain ion hopping is reduced or eliminated, thus avoiding the occurrence of salt-throwing which occurs at reverse bead junctions of prior art constructions. Conductivity of concentrate cells is increased, permitting more compact device construction, allowing increases in stack cell number, and providing more efficient electrical operation without ion additions. Finally, ion storage within beads is greatly reduces, eliminating the potential for contamination during reversal operation. Various methods of forming sparse beds and assembling the stacks are disclosed.

公开(公告)号：US20060169581A1

公开(公告)日：2006-08-03

申请号：US11292319

申请日：2005-12-01

Applicant: Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

Inventor： Vladimir Grebenyuk ,  Oleg Grebenyuk ,  Keith Sims ,  William Carson ,  Russell MacDonald ,  Li Zhang

IPC: C25B9/08

CPC classification number: B01D61/46 ,  B01D61/48 ,  B01D61/52 ,  B01D63/10 ,  B01J47/08 ,  C02F1/4695 ,  C02F2201/003

Abstract: EDI apparatus for demineralizing a liquid flow is assembled in a housing having a cylindrical shape, and includes two metal electrodes, and one or more leafs, each leaf comprising a pair of selectively ion-permeable membranes arranged parallel to each other and spaced apart by spacing elements that allow liquid to flow in the interstitial space between membranes, thus forming an arrangement of dilute and concentrate cells in a desired flow configuration. Spacing elements between membranes, as well as between leaves, can be formed of inert polymer material, ion exchange beads, ion exchange fibers, a combination of two or more these elements, or a porous media incorporating one or more of such elements as an intrinsic part. An inner or central electrode and an outer or perimeter electrode establish a generally uniform and radially-oriented electrical or ionic current between the inner and the outer electrodes, across the helical flow spaces defined by the membrane/spacer windings. One or both electrodes may include a pocket, and the adjacent flow cells lie parallel to the electrode and free of shadowing and field inhomogeneity around a full circumference of the electrode. Flow paths within the helical cells are defined by barrier seals, which may form a path-lengthening maze, while unfilled cell regions may disperse or collect flow within a cell and define pressure gradients promote directional flows. Impermeable barriers between membranes further prevent the feed and concentrate flows from mixing. In various embodiments, seals along or between portions of the flow path may define a multi-stage device, may define separate feed and/or concentrate flows for different stages, and/or may direct the feed and concentrate flows along preferred directions which may be co-current, counter-current or cross-current with respect to each other within the apparatus.

Abstract translation: 用于使液体流动脱矿质的EDI装置组装在具有圆柱形形状的壳体中，并且包括两个金属电极和一个或多个叶片，每个叶片包括一对彼此平行布置的间隔开的间隔开的间隔开的选择性离子渗透膜 允许液体在膜之间的间隙空间中流动的元件，从而在期望的流动构型中形成稀释和浓缩细胞的排列。 膜之间以及叶之间的间隔元件可以由惰性聚合物材料，离子交换珠，离子交换纤维，两种或更多种这些元素的组合形成，或多种介质结合一种或多种这样的元素，如内在的 部分。 内部或中心电极和外部或周边电极在内部和外部电极之间跨越由膜/间隔件绕组限定的螺旋流动空间建立大致均匀且径向取向的电或离子电流。 一个或两个电极可以包括袋，并且相邻的流动池平行于电极并且在电极的整个周围没有阴影和场不均匀性。 螺旋细胞内的流动路径由阻挡密封件限定，其可以形成路径延长迷宫，而未填充的细胞区域可以在细胞内分散或收集流动并且限定压力梯度促进定向流动。 膜之间的不渗透屏障进一步防止了进料和浓缩物的流动。 在各种实施例中，沿着流动路径的部分或之间的密封件可以限定多级装置，可以为不同的级限定单独的进料和/或浓缩物流，和/或可以将进料和浓缩物流沿着优选的方向引导， 在设备内相互相互并流，逆流或交叉电流。