Embodiments of the invention provide a membrane module including a first plurality of fibers capable of filtering fluids that are helically wound in layers creating a mono helix. Fluids to be treated can flow radially with respect to a longitudinal axis of the mono helix or parallel to the longitudi
Embodiments of the invention provide a membrane module including a first plurality of fibers capable of filtering fluids that are helically wound in layers creating a mono helix. Fluids to be treated can flow radially with respect to a longitudinal axis of the mono helix or parallel to the longitudinal axis of the mono helix. The membrane module can further include a second plurality of fibers that are helically wound with the first plurality of fibers to create a dual helix. The second plurality of fibers can have different properties than the first plurality of fibers in order to achieve different filtering functionalities.
대표청구항▼
1. A method of filtering water, the method comprising the steps of: providing a membrane module including a first end and a second end, a core including at least one passageway near the first end, a plurality of fibers that are helically wound in layers around the core, wherein the plurality of fibe
1. A method of filtering water, the method comprising the steps of: providing a membrane module including a first end and a second end, a core including at least one passageway near the first end, a plurality of fibers that are helically wound in layers around the core, wherein the plurality of fibers are capable of filtering water, and an impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;feeding water to be treated through the at least one passageway into the mono helix such that the water to be treated flows parallel to a longitudinal axis of the mono helix and flows between the core and the impervious wrap through the mono helix from the first end to the second end, wherein a packing fraction of the plurality of fibers increases toward the second end such that an open cross-sectional area where fluid flows between the plurality of fibers decreases as water flows from the first end to the second end; anddischarging filtered water from the second end. 2. The method method of claim 1 wherein the plurality of fibers are hydrophilic. 3. The method of claim 1 further including the step of configuring the plurality of fibers for outside-in filtration. 4. The method of claim 1 further including the step of applying at least one of a pressurized feed of fluid to be treated and a vacuum to the plurality of fibers in order to draw permeate water through lumens of the plurality of fibers. 5. The method of claim 1 wherein the plurality of fibers include pores up to about 10 microns in diameter. 6. The method of claim 1 wherein the core is a porous hollow cylinder. 7. The method of claim 1 wherein the core is porous and is used to aerate the mono helix. 8. The method of claim 1 wherein at least one end of the plurality of fibers are potted and coupled to a permeate manifold. 9. The method of claim 1 wherein a plurality of mono helixes are coupled together to a permeate manifold to create a submersible module. 10. The method of claim 1 wherein the mono helix is positioned inside a cylindrical housing. 11. The method of claim 1 further including the step of drawing permeate water out of lumens of the plurality of fibers from at least one end of the plurality of fibers. 12. The method of claim 1 wherein the mono helix is more dense in an interior layer than an exterior layer. 13. The method of claim 1 wherein the mono helix includes along its length at least one of varying pore sizes, patterned porosities, varying fiber cross-sectional shapes, varying fiber textures, and varying fiber dimensions. 14. The method of claim 1 wherein the module is used in one of a drinking water purification system, a wastewater treatment system, and an industrial process water treatment system. 15. A membrane module including a first end and a second end, the membrane module comprising: a core including at least one passageway near the first end;a plurality of fibers that are helically wound in layers around the core, the plurality of fibers capable of filtering water; andan impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;the plurality of fibers creating a mono helix through which water to be treated flows parallel to a longitudinal axis of the mono helix, water to be treated flowing through the at least one passageway into the mono helix and then flowing between the core and the impervious wrap through the mono helix from the first end to the second end,a packing fraction of the plurality of fibers increasing toward the second end such that an open cross-sectional area where fluid flows between the plurality of fibers decreases as water flows from the first end to the second end,the core being porous and a packed bed of filtration media positioned inside the core. 16. A membrane module including a first end and a second end, the membrane module comprising: a core including at least one passageway near the first end;a plurality of fibers that are helically wound in layers around the core, the plurality of fibers capable of filtering water; andan impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;the plurality of fibers creating a mono helix through which water to be treated flows parallel to a longitudinal axis of the mono helix, water to be treated flowing through the at least one passageway into the mono helix and then flowing between the core and the impervious wrap through the mono helix from the first end to the second end;the core being porous and further comprising an ultraviolet light source positioned inside of the core. 17. A membrane module including a first end and a second end, the membrane module comprising: a core including at least one passageway near the first end;a plurality of fibers that are helically wound in layers around the core, the plurality of fibers capable of filtering water; andan impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;the plurality of fibers creating a mono helix through which water to be treated flows parallel to a longitudinal axis of the mono helix, water to be treated flowing through the at least one passageway into the mono helix and then flowing between the core and the impervious wrap through the mono helix from the first end to the second end;the mono helix including along its length varying fiber dimensions with varying lumen sizes. 18. A membrane module including a first end and a second end, the membrane module comprising: a core including at least one passageway near the first end;a plurality of fibers that are helically wound in layers around the core, the plurality of fibers capable of filtering water; andan impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;the plurality of fibers creating a mono helix through which water to be treated flows parallel to a longitudinal axis of the mono helix, water to be treated flowing through the at least one passageway into the mono helix and then flowing between the core and the impervious wrap through the mono helix from the first end to the second end;the mono helix including varying surface structure along its length. 19. A membrane module including a first end and a second end, the membrane module comprising: a core including at least one passageway near the first end;a plurality of fibers that are helically wound in layers around the core, the plurality of fibers capable of filtering water;an impervious wrap positioned around the plurality of fibers, the impervious wrap including at least one opening near the second end;the plurality of fibers creating a mono helix through which water to be treated flows parallel to a longitudinal axis of the mono helix, water to be treated flowing through the at least one passageway into the mono helix and then flowing between the core and the impervious wrap through the mono helix from the first end to the second end; anda filtration media wrapped between fibers in the mono helix.
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이 특허에 인용된 특허 (14)
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Burban, John H.; Crowder, Robert O.; Spearman, Michael R.; Roberts, Keith A., Membrane air dryer with integral diffuser and method of manufacture thereof.
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