Fluid flow distribution device
First Claim
1. A filtration module comprising:
- a membrane module having a plurality of permeable hollow membranes vertically extending between an upper header and a lower header;
an end cap encasing the lower header and including a groove defined by a pair of cap shoulders;
a feed supply manifold positioned below the lower header and configured to deliver a feed to the permeable hollow membranes;
a gas supply device positioned below the lower header and configured to deliver a gas to the permeable hollow membranes;
a fluid distribution device configured and positioned around the plurality of permeable hollow membranes to equalize and uniformly distribute the feed and the gas upwardly to and along surfaces of the permeable hollow membranes and restrict and distribute a waste fluid flow downwardly, the fluid distribution device including an inner surface disposed in the groove, the fluid distribution device surrounding a portion of the membranes and including a plurality of circumferentially spaced recesses separated from one another by radially extending ridges spanning an entire width of the fluid distribution device, each of the recesses defining a single through-hole opening formed in and surrounded by a reduced-width base region of each of the recesses, each of the single through-hole openings centrally located in the reduced-width base region, each of the single through-hole openings, configured to distribute a fluid along surfaces of the permeable hollow membranes; and
a connecting sleeve including a sleeve shoulder defined on an inner surface thereof, the sleeve shoulder engaging an upper surface of the fluid distribution device, the connecting sleeve further including a bottom portion sealed with the feed supply manifold.
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Accused Products
Abstract
In a first membrane filtration module comprises a membrane module comprising a plurality of permeable hollow membranes; a fluid distribution device adapted to removably surround at least a portion of the membranes of the membrane module, the fluid distribution device comprising a plurality of through-hole openings for distributing a fluid, and the fluid distribution device adapted to distribute a flow of fluid along a surface of the permeable hollow membranes. In a second membrane filtration device comprises a membrane module comprising a plurality of permeable hollow membranes, each of the permeable hollow membranes having a surface; and a gas distribution device: adapted to distribute gas bubbles to the surface of the permeable hollow membrane, adapted to removably surround at least a portion of the plurality of permeable hollow membranes, and defining a plurality of through openings for distributing the gas bubbles to the membranes.
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Citations
20 Claims
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1. A filtration module comprising:
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a membrane module having a plurality of permeable hollow membranes vertically extending between an upper header and a lower header; an end cap encasing the lower header and including a groove defined by a pair of cap shoulders; a feed supply manifold positioned below the lower header and configured to deliver a feed to the permeable hollow membranes; a gas supply device positioned below the lower header and configured to deliver a gas to the permeable hollow membranes; a fluid distribution device configured and positioned around the plurality of permeable hollow membranes to equalize and uniformly distribute the feed and the gas upwardly to and along surfaces of the permeable hollow membranes and restrict and distribute a waste fluid flow downwardly, the fluid distribution device including an inner surface disposed in the groove, the fluid distribution device surrounding a portion of the membranes and including a plurality of circumferentially spaced recesses separated from one another by radially extending ridges spanning an entire width of the fluid distribution device, each of the recesses defining a single through-hole opening formed in and surrounded by a reduced-width base region of each of the recesses, each of the single through-hole openings centrally located in the reduced-width base region, each of the single through-hole openings, configured to distribute a fluid along surfaces of the permeable hollow membranes; and a connecting sleeve including a sleeve shoulder defined on an inner surface thereof, the sleeve shoulder engaging an upper surface of the fluid distribution device, the connecting sleeve further including a bottom portion sealed with the feed supply manifold. - View Dependent Claims (2, 3, 4, 19)
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5. A filtration module comprising:
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a membrane module having a plurality of permeable hollow membranes; a fluid distribution device surrounding a portion of the membrane module, the fluid distribution device including a plurality of circumferentially spaced recesses separated from one another by radially extending ridges spanning an entire width of the fluid distribution device, each of the recesses defining a single through-hole opening formed in and surrounded by a reduced-width base region of each of the recesses, each of the single through-hole openings centrally located in the reduced-width base region, each of the single through-hole openings configured to equalize and uniformly distribute a fluid along surfaces of the permeable hollow membranes and restrict and distribute a waste fluid flow downwardly. - View Dependent Claims (6, 7, 8, 9, 10, 20)
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11. A filtration system comprising:
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a vessel; a membrane module including a plurality of permeable hollow membranes positioned within the vessel; a first system configured to provide a pressure differential across walls of the membranes; a second system configured to withdraw permeate from the membranes; and a fluid distribution device surrounding a portion of the membrane module, the fluid distribution device including a plurality of circumferentially spaced recesses separated from one another by radially extending ridges spanning an entire width of the fluid distribution device, each of the recesses defining a single through-hole opening formed in and surrounded by a reduced-width base region of each of the recesses, each of the single through-hole openings centrally located in the reduced-width base region, each of the single through-hole openings configured to equalize and uniformly distribute a fluid along surfaces of the permeable hollow membranes and restrict and distribute a waste fluid flow downwardly. - View Dependent Claims (12, 13, 14)
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15. A filtration system comprising:
at least one filtration module having a plurality of permeable hollow membranes vertically extending between an upper header a lower header and disposed in a vessel, the module having; an end cap encasing the lower header; a fluid distribution device engaged with the end cap, the fluid distribution device surrounding a portion of the membranes and positioned and configured to uniformly direct liquid feed from a liquid feed supply manifold and gas from a gas supply device upwardly to contact surfaces of the plurality of permeable hollow membranes, and restrict and distribute a waste fluid flow downwardly, and including a plurality of circumferentially spaced recesses separated from one another by radially extending ridges spanning an entire width of the fluid distribution device, each recess defining a single through-hole opening formed in and surrounded by a reduced-width base region of each of the recesses, each of the single through-hole openings centrally located in the reduced-width base region, each of the single through-hole openings configured to distribute a fluid along surfaces of the permeable hollow membranes; and a connecting sleeve engaged with the fluid distribution device, the connecting sleeve surrounding the end cap and coupling a lower manifold of the filtration system to a housing surrounding the at least one filtration module. - View Dependent Claims (16, 17, 18)
Specification