Filtration apparatus using hollow fiber membrane
First Claim
1. A filtration apparatus using a membrane of hollow fibers therein, comprising:
- a bundle of hollow fibers collected and fixed at one end thereof with an adhesive, and closed at the other end thereof;
a hollow frustrum-shaped cap member coupled at the wide, base portion thereof to the collected and fixed end of said bundle;
a tubular projection extending from the narrow, top portion of said cap member;
a housing provided with an opening at its upper end for receiving the bundle of hollow fibers therein;
flange means on the inner wall of said housing for engaging the base portion of said cap member, thereby supporting the hollow fiber bundle;
a removable cover member for closing the upper end opening of said housing in a liquid-tight manner;
a first opening in said cover member providing a fluid path between the interior and the exterior of said housing;
a second opening in said cover member in communication with said tubular projection for providing a fluid path from the interior of said cap member to the exterior of said housing;
at least two spaced seals extending around the circumference of said tubular projection for preventing direct communication between said second opening and the interior of said housing;
a leakage opening in said cover member between said spaced seals for leading any liquid leaking across one of said seals to the outside of said housing; and
means for coupling one of said first and second openings to an inlet for liquid to be treated and the other of said openings to an outlet for liquid to be treated.
1 Assignment
0 Petitions
Accused Products
Abstract
A filtration apparatus for removing undesirable components from a solution to be treated, comprises a module in which a number of hollow fibers are fixed at one end thereof by cast-molding materials, and is opened at the end portion above described and closed at another end portion thereof, in which said solution to be treated can be kept from leaking out of a mechanically sealed portion. Any defect in the sealed portion can be detected from the outside by the provision of an opening which leads the leaked solution to the outside of the apparatus, instead of allowing it to combine with the filtrate. The apparatus is preferably used for the manufacture of purified water which is free from bacteria, pyrogene, and the like. Ultra-purified water of remarkably high purity can be obtained when the apparatus is used as a check filter in a process for manufacturing ultra-purified water.
142 Citations
11 Claims
-
1. A filtration apparatus using a membrane of hollow fibers therein, comprising:
-
a bundle of hollow fibers collected and fixed at one end thereof with an adhesive, and closed at the other end thereof; a hollow frustrum-shaped cap member coupled at the wide, base portion thereof to the collected and fixed end of said bundle; a tubular projection extending from the narrow, top portion of said cap member; a housing provided with an opening at its upper end for receiving the bundle of hollow fibers therein; flange means on the inner wall of said housing for engaging the base portion of said cap member, thereby supporting the hollow fiber bundle; a removable cover member for closing the upper end opening of said housing in a liquid-tight manner; a first opening in said cover member providing a fluid path between the interior and the exterior of said housing; a second opening in said cover member in communication with said tubular projection for providing a fluid path from the interior of said cap member to the exterior of said housing; at least two spaced seals extending around the circumference of said tubular projection for preventing direct communication between said second opening and the interior of said housing; a leakage opening in said cover member between said spaced seals for leading any liquid leaking across one of said seals to the outside of said housing; and means for coupling one of said first and second openings to an inlet for liquid to be treated and the other of said openings to an outlet for liquid to be treated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for producing purified water free of bacteria and pyrogene, comprising the steps of:
-
feeding unpurified water under a pressure of between about 0.1 to 5 kg/cm2 into the inlet of an inline filtration apparatus having membranes of hollow fibers incorporated therein for the removal of bacterias and pyrogenes; and withdrawing purified water from the outlet of said in-line filtration apparatus, said filtration apparatus comprising; a bundle of hollow fibers collected and fixed at one end thereof with a cast-molding material and closed at the other end thereof; a cap member coupled to the collected and fixed end of said bundle; at least two spaced seals installed about the circumference of said cap member; a housing provided with an opening at the upper end thereof for receiving the bundle of hollow fibers therein, a removable cover member for closing the upper end opening of said housing in a liquid-tight manner, two openings in said cover member, one communicating with an inlet for liquid to be treated and the other communicating with an outlet for treated liquid, means for mounting said cap member into one of said two openings, and a leakage opening in said cover member between said seals for leading any liquid leaking across one of said seals to the outside of said apparatus.
-
Specification