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AssigneeAkzo Nobel N.V.
InventorsUlrich Baurmeister, Klaus Schneider, Rudolf Wollbeck
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Membrane module and process for its manufacture, wherein the membrane module contains at least two groups of hollow-fiber membranes, the groups arranged in layers and capable of being fed independently by fluids. The membrane module has a housing shell comprising a channel-shaped housing middle section, open at the top, and adjoining end pieces, also open at the top and with a number of arms corresponding to the number of groups. The groups of hollow-fiber membranes are inserted as layers over one another such that they are arranged in the direction of the longitudinal extent of the housing middle section and substantially parallel to each other. The ends of hollow-fiber membranes of different groups are arranged in respectively different arms of the end pieces and embedded with a sealing compound such that at least one end of the hollow-fiber membranes is open. The housing middle section and end pieces are closed with a covering device in a fluid-tight manner, thus forming a space enclosing the hollow-fiber membranes that can also accommodate a fluid stream.
Process for assembling a membrane module with a housing middle section, containing at least two groups of hollow-fiber membranes, the groups arranged in layers and capable of being fed independently by fluids, wherein the hollow-fiber membranes within one group and the hollow-fiber membranes of different groups, at least in the housing middle section, are arranged substantially parallel to each other and each layer contains only hollow-fiber membranes of a single group, the process comprising:
Membrane module with a module housing, comprising a housing middle section with a longitudinal extent, terminating at its ends in end pieces each with at least two arms, wherein the module housing contains at least two groups of hollow-fiber membranes, capable of being fed independently by fluids and arranged in layers such that each layer contains only hollow-fiber membranes of a single group, the hollow-fiber membranes being arranged substantially in the direction of the longitudinal extent of the housing middle section and substantially parallel to each other, and the ends of the hollow-fiber membranes terminating in the arms of the end pieces, wherein the ends of the groups of hollow-fiber membranes are each arranged separately in different arms of the end pieces and the hollow-fiber membranes, at least in the arms of the end pieces, are embedded with a sealing compound such that at least at one of the ends of the hollow-fiber membranes penetrate the sealing compound and are open at this end, and wherein the open ends of the hollow-fiber membranes, separated by group, are each in communication with an inlet arrangement or an outlet arrangement, wherein the housing middle section and the end pieces with their arms are designed in the form of channels, open at the top and together constituting a housing shell, and wherein the housing middle section and end pieces are sealed in a fluid-tight manner with a covering device and a space enclosing the hollow-fiber membranes is thereby formed between the hollow-fiber membranes, an inner wall of the housing middle section, an inside of the covering device facing the housing middle section, and the sealing compound.
Dependencies are inferred from the claim text.