KR101486886B1 - Cap for fixing hollow fiber membrane and fluid distribution - Google Patents

Abstract

The present invention relates to a cap for fixing a hollow fiber membrane and distributing fluids. More specifically, the purpose of the present invention is to provide a cap for fixing a hollow fiber membrane and distributing fluids, which can improve a coupling structure with a housing, a charging rate of an adhesive resin, a self-coupling structure, and a fluid distribution structure. To this end, the cap comprises: a core member in a cylindrical form having a flow path which fluids can pass through and installed on a distal end of a bundle of the hollow fiber membrane; a wing member in a plate form having the flow path which fluids can pass through and a path which the adhesive resin can pass through, installed in the longitudinal direction of a bundle of the hollow fiber membrane, plurally installed along circumferential direction of an outer circumference surface of the core member, and having a groove which the adhesive resin can pass through by being formed on the distal end of the core member; and a cover member in an arc-plate form having a path which the adhesive resin can pass through, and installed to form a cylinder all over along the circumferential direction by connecting distal ends of each wing member.

Description

Technical Field The present invention relates to a cap for fixing hollow fiber membrane and fluid distribution,

The present invention relates to a cap for holding a hollow fiber membrane and distributing fluid.

In general, membrane filtration methods have been developed that filter water by a separator membrane as energy saving, space saving, power saving, and improvement of water quality are required, and they are widely used in various fields at present.

Hollow fiber membranes have the advantage of securing a large membrane area per unit volume and are being applied to various fluid treatment fields such as chemical purification, sterilization filtration and purification.

In the water treatment module using the hollow fiber membrane, a bundle of hollow fiber membranes is disposed inside the case having the inlet and the outlet. In this water treatment module, the raw water flowing into the case through the inlet is filtered during the bundle of hollow fiber membranes , And the filtered raw water is discharged to the outside through the discharge port.

The hollow fiber membrane is installed in the hollow fiber membrane module housing in the form of a bundle. Caps for distributing the fluid by fixing both ends of the hollow fiber membrane bundle with resin can be used.

Such a hollow fiber membrane fixing and fluid distribution cap needs to be improved in a fastening structure with a housing, a filling rate of a resin, a self-fastening structure, and a fluid distribution structure.

It is an object of the present invention to provide a hollow fiber membrane fixing and fluid dispensing cap capable of improving the fastening structure with the housing.

Another object of the present invention is to provide a hollow fiber membrane fixing and fluid dispensing cap capable of improving the filling rate of the resin.

Another object of the present invention is to provide a hollow fiber membrane fixing and fluid dispensing cap capable of improving self-fastening structure.

Another object of the present invention is to provide a hollow fiber membrane fixing and fluid dispensing cap capable of improving the fluid distribution structure.

The hollow fiber membrane fixing and fluid dispensing cap according to one embodiment of the present invention is for improving the fastening structure with the housing and has a cylindrical shape and has a flow passage through which fluid can pass and is provided at the distal end of the hollow fiber membrane bundle ; A wing member having a plate shape and provided with a passage through which fluid can pass and a passage through which the adhesive resin can pass, the wing member being installed along the circumferential direction on the outer circumferential surface of the core member while being installed in the longitudinal direction of the hollow fiber membrane bundle; And a protrusion protruding outward in a circumferential direction, the protrusion having a step formed at an upper end of the protrusion and having a passage through which the adhesive resin can pass, and a distal end portion of each of the plurality of wing members And a cover member installed to connect and form a cylinder as a whole along the circumferential direction.

In this embodiment, the protruding portion of the cover member may be provided with a latching jaw due to the step difference, the protruding portion stepped portion of the cover member may be formed higher toward the hollow fiber membrane, and the latching jaw of the cover member may correspond to the inner peripheral surface of the hollow fiber membrane module housing The engaging jaw can be engaged with the engaging jaw. The cross-sectional shape of the projection of the cover member may be rectangular, trapezoidal, elliptical or semicircular.

According to another aspect of the present invention, there is provided a cap for fixing a hollow fiber membrane and a fluid dispenser for improving the filling rate of a resin, the cap having a cylindrical shape and having a flow passage through which a fluid can pass, absence; And a plurality of openings through which the fluid can pass and a passage through which the adhesive resin can pass and which are provided along the circumferential direction on the outer circumferential surface of the core member while being installed in the longitudinal direction of the hollow fiber membrane bundle, A wing member having a groove formed therein through which an adhesive resin can pass; And a cover member which is formed in the shape of a plate in the shape of an arc and has a passage through which the adhesive resin can pass and which is provided so as to form a cylinder as a whole along the circumferential direction by connecting distal ends of the plurality of wing members.

In this embodiment, the wing members can be disassembled and assembled to the core member.

According to another aspect of the present invention, there is provided a cap for fixing a hollow fiber membrane and a fluid dispenser for improving a self-fastening structure, the cap having a cylindrical shape and provided with a passage through which fluid can pass, A core member; A wing member having a plate shape and provided with a passage through which fluid can pass and a passage through which the adhesive resin can pass, the wing member being installed along the circumferential direction on the outer circumferential surface of the core member while being installed in the longitudinal direction of the hollow fiber membrane bundle; And a cover member that is formed in a plate shape and has an arc-shaped plate shape and has a passage through which the adhesive resin can pass, is provided to connect the distal ends of the plurality of wing members to form a cylinder as a whole along the circumferential direction, . ≪ / RTI >

In this embodiment, the wing member may have a groove-shaped rail portion at the distal end portion, and the cover member may have a fastening portion at the distal end portion for sliding engagement with the rail portion of the wing member.

According to another aspect of the present invention, there is provided a hollow fiber membrane fixed and fluid dispensing cap for improving the fluid distribution structure, the hollow fiber membrane fixed and fluid dispensing cap having a cylindrical shape and having a flow passage through which fluid can pass, A core member provided at a distal end of the hollow fiber membrane bundle and having a plurality of partition walls; A wing member having a plate shape and provided with a passage through which fluid can pass and a passage through which the adhesive resin can pass, the wing member being installed along the circumferential direction on the outer circumferential surface of the core member while being installed in the longitudinal direction of the hollow fiber membrane bundle; And a cover member which is formed in the shape of a plate in the shape of an arc and has a passage through which the adhesive resin can pass and which is provided so as to form a cylinder as a whole along the circumferential direction by connecting distal ends of the plurality of wing members.

In this embodiment, the hollow fiber membrane bundle end portion of the wing member can be inclined so as to decrease in length toward the core member.

According to the present invention, a locking protrusion due to a step is formed on the cover member, and the locking protrusion is engaged with a locking protrusion formed corresponding to the inner circumferential surface of the hollow fiber membrane module housing, thereby improving the fastening structure with the housing. Specifically, since the cap and the housing are fastened by the engaging jaws, alignment in the longitudinal direction and the circumferential direction is facilitated, and a high supporting force against fluid pressure can be exhibited.

Further, by forming a separate resin filling groove through which the adhesive resin can pass through the end portion of the wing member toward the core member, the filling of the adhesive resin can be facilitated, and the filling rate of the adhesive resin can be improved more than two times.

Further, by structuring the wing member and the cover member to be slidingly coupled, easy fastening between the two members is possible.

Further, by forming the partition wall on the inner circumferential surface of the cylindrical member and forming the distal end portion of the wing member obliquely, the distribution structure of the fluid can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a hollow fiber membrane fixing and fluid dispensing cap according to an embodiment of the present invention; FIG.
Figures 2 and 3 are partial enlarged views of a core member and a wing member in a hollow fiber membrane fixing and fluid distribution cap according to an embodiment of the present invention.
4 is a configuration diagram of a wing member among the cap for fixing the hollow fiber membrane and the fluid distribution according to the embodiment of the present invention.
5 is a configuration diagram of a cover member of a cap for fixing a hollow fiber membrane and a fluid distribution according to an embodiment of the present invention.
6 is a view showing a fastening structure with a cap and a housing for hollow fiber membrane fixing and fluid dispensing according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The hollow fiber membrane module can be roughly divided into a hollow fiber membrane bundle, a housing 20, a hollow fiber membrane fixing and a fluid dispensing cap 100.

The hollow fiber membrane bundle is a hollow fiber membrane aggregate formed by bundling a plurality of hollow fiber membranes, which are filters, and can be stored in the housing 20 in the longitudinal direction of the hollow fiber membrane. The number of hollow fiber membranes in a hollow fiber membrane bundle can range from as few as several hundreds to as many as several million. The hollow fiber membrane is not particularly limited as long as it can be used for fluid treatment. Examples of the material include polyacrylonitrile, polysulfone, polyether ketones, polyether sulfone, polyphenylene sulfide, polyvinylidene fluoride, cellulose, polyvinyl alcohol , Polyamide, polyimide, sulfonated polyphenylene ether, polyethylene, polypropylene, polybutene, poly 4-methylpentene, polyorganosiloxane, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, etc. , And moreover, a composite. Examples of the membrane include an ultrafiltration membrane having a cut-off molecular weight of 1,000 to 500,000 daltons and a microfiltration membrane having a pore diameter of 0.01 to 1 m. As the shape of the hollow fiber membrane, a membrane having an inner diameter of 50 to 3,000 mu m and an inner / outer diameter ratio of 0.3 to 0.8 can be used.

The housing 20 is a case for accommodating a bundle of hollow fiber membranes and may have a cylindrical shape and may have a plurality of fluid inlets and outlets for the inflow and outflow of fluid. The housing 20 typically has a diameter of 30 to 800 mm and a length of 300 to 3,000 mm, but is not limited thereto. Examples of the material of the housing 20 include fluororesins such as poly (tetrafluoroethylene), tetrafluoroethylene-hexafluoropropylene copolymer resin, ethylene-tetrafluoroethylene copolymer resin, and polyvinylidene fluoride; Polyolefins such as polyethylene, polypropylene and polybutene; Various polymer compounds such as polyvinyl chloride, ABS (acrylonitrile butadiene styrene) resin, AS (acrylonitrile styrene) resin, polyester, polysulfone, polyether sulfone and polyphenylene ether, Can be used.

The hollow fiber membrane fixing and fluid dispensing cap 100 functions to fix the hollow fiber membrane bundle 20 through the adhesive resin and to decompose the fluid.

Both end portions of the hollow fiber membrane bundle can be fixed by the adhesive resin in the module housing 20 while maintaining the state of being permeable in the hollow fiber membrane. As the type of adhesive resin that can be used, thermosetting polymer materials such as epoxy resin, urethane resin, and silicone can be used. As the adhesion fixing method, a known method such as a centrifugal bonding method can be used. The curing shrinkage and strength of the adhesive resin may be improved. Therefore, a fibrous material such as glass fiber or carbon fiber may be added to the adhesive resin; And / or fine powder such as carbon black, alumina, silica and the like.

Fluids in the present invention may refer to solids, liquids, gases or mixtures thereof. When the hollow fiber membrane module is used for water treatment, raw water containing turbidity-inducing impurities, washing water for washing and compressed air can be introduced, permeated water in which impurities are removed, concentrated water in which impurities are concentrated, Water and air can be discharged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural view of a hollow fiber membrane fixing and fluid distribution cap according to an embodiment of the present invention, which is viewed from a cross section and circumferential direction of a hollow fiber membrane bundle. FIG.

FIG. 2 and FIG. 3 are partial enlarged views of a core member and a wing member in a hollow fiber membrane fixing and fluid distribution cap according to an embodiment of the present invention, as viewed from the longitudinal direction of the hollow fiber membrane bundle. In the case of the core member 110, a cross section can be seen.

The cap 100 according to the present invention can be broadly divided into a core member 110, a wing member 120, and a cover member 130. The cap 100 may be made of metal, plastic, or the like as described above, and each member may be integrally manufactured or may be manufactured as an independent component and assembled.

The core member 110 may be installed at the center of the distal end of the hollow fiber membrane bundle. The core member 110 may be formed in a cylindrical shape extending in the longitudinal direction of the hollow fiber membrane bundle, but may be formed in other shapes such as an elliptical tube or a polygonal tube. The core member 110 may have a multi-stage cylindrical shape with different outer diameters and / or inner diameters. And at least one flow passage 111 through which the fluid can pass through the core member 110. In the drawing, a large-diameter flow path 111 formed at the center is illustrated, but a plurality of small-diameter flow paths may alternatively be formed. Further, the core member 110 may have a passage through which the adhesive resin can pass.

A plurality of partition walls 112 may be formed along the circumferential direction on the inner circumferential surface of the cylinder of the core member 110. The partitions 112 serve to improve the fluid distribution structure. The partition wall 112 may have a semicircular shape in cross section as illustrated in the drawing, or alternatively may be formed in an elliptical shape or a polygonal shape. The partition walls 112 may be formed at regular intervals along the circumferential direction and are preferably disposed between the wing members 120 to uniformly distribute the fluid toward the wing members 120. That is, the partition wall 112 is not formed on the side where the wing member 120 is present, but is formed on the side where the wing member 120 is not provided, so that the fluid can be uniformly decomposed toward the wing member 120.

4 is a configuration diagram of a wing member among the cap for fixing the hollow fiber membrane and the fluid distribution according to the embodiment of the present invention.

Referring to FIGS. 1 to 4, the wing member 120 may be formed in a plate shape as shown in the drawing. The wing member 120 may include a body having a substantially rectangular shape when viewed from the longitudinal direction of the hollow fiber membrane bundle, . The main body and the inclined portion 127 may preferably be integrally formed.

The wing member 120 can be disassembled and assembled to the core member 110. Specifically, the wing members 120 may be installed in the longitudinal direction of the hollow fiber membrane bundle. Therefore, the hollow fiber membrane bundle can be seen in the form of a line in the cross section or in the circumferential direction, and in a plate shape in the length direction of the hollow fiber bundle bundle. The wing members 120 may be provided on the outer circumferential surface of the core member 110 along the circumferential direction. 6, the wing members 120 are provided at equal intervals along the circumferential direction on the outer circumferential surface of the core member 110. However, the interval and the number of the wing members 120 are not particularly limited, Can be changed appropriately. The number of suitable wing members 120 may be four to eight.

The wing member 120 may have at least one passage 121, 122, 123 through which the fluid can pass. The flow paths 121, 122, and 123 may be formed on the side of the core member 110, the upper and lower sides, except for distal ends farther from the core member 110. A plurality of the flow paths 121, 122, and 123 may be formed in one direction, and the flow paths 121, 122, and 123 may be connected to each other in the middle. The shapes, sizes, numbers, intervals, and the like of the flow paths 121, 122, and 123 may be appropriately changed as needed in addition to those illustrated in the drawings.

The wing member 120 may have at least one passage 124 through which the adhesive resin can pass. A plurality of the resin passages 124 may be preferably formed on the side of the longitudinal direction of the hollow fiber membrane bundle formed in a large area. Adhesive resin can be injected and moved into the space between each wing member 120 through the plurality of resin passages 124. Both ends of the hollow fiber membrane bundle are disposed in the space between the wing members 120 and can be fixed through the adhesive resin. The shape, size, number, spacing, etc. of the resin passages 124 may be appropriately changed as needed in addition to those illustrated in the drawings.

A groove 125 through which the adhesive resin can pass may be formed at the end of the wing member 120 toward the core member. That is, a resin filling groove 125 other than the resin passage 124 may be formed. The resin filling grooves 125 are present even after the core member 110 and the wing member 120 are joined or assembled. The injection of the adhesive resin can be facilitated by the resin filling groove 125, and in particular, the filling rate of the adhesive resin can be doubled or more. Specifically, when the grooves 125 are not provided, the resin filling rate may be approximately 30%. However, when the grooves 125 are formed, the resin filling rate can be remarkably improved to approximately 60%. The grooves 125 may be elongated in the longitudinal direction and the width of the grooves 125 may be, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm, more preferably 1 to 2 mm. The shape, the length, and the like of the groove 125 may be changed as appropriate in addition to those illustrated in the drawings.

A rail portion 126 may be formed at another end portion of the wing member 120, that is, a distal end portion far from the core member 110. The rail portion 126 is capable of sliding engagement with the end fastening portion 134 of the cover member 130. The sliding engagement structure of the wing member 120 and the cover member 130 can greatly facilitate the fastening of the wing member 120 and the cover member 130 as compared with, for example, a push-fitting structure. The rail portion 126 may be formed in a groove shape, as illustrated in the drawing, and may be formed on both sides. The shape, size and the like of the rail portion 126 can be changed as appropriate in addition to those illustrated in the drawings.

The hollow fiber membrane bundle end portion of the wing member 120 may be composed of an inclined portion 127. The inclined portion 127 can be inclined toward the core member 110, that is, the length decreases toward the center. That is, the side farther from the core member 110 is long and is advanced toward the bundle of hollow fiber membranes, while the side closer to the core member 110 is relatively short and relatively rearward. The structure of the inclined portion 127 can improve the fluid distribution structure, specifically, the fluid can be uniformly distributed in the circumferential direction of the hollow fiber membrane bundle.

5 is a structural view of a cover member of a cap for fixing and distributing hollow fiber membranes according to an embodiment of the present invention. The cover member 130 may be formed in the shape of an arc-shaped plate as illustrated in the figure. The cover member 130 can be disassembled and assembled to the wing member 120. The cover member 130 may be installed between the plurality of wing members 120. Specifically, the cover member 130 may be installed in the longitudinal direction of the hollow fiber membrane bundle like the wing member 120. Therefore, the hollow fiber membrane bundle can be seen in the form of a line in the cross section or in the circumferential direction, and in a plate shape in the length direction of the hollow fiber bundle bundle. In addition, the cover member 130 may be installed to connect the distal ends of the plurality of wing members 120 and form a cylinder entirely along the circumferential direction. The spacing and the number of the cover members 130 may vary depending on the interval and the number of the wing members 120.

The cover member 130 may include at least one passage 131 through which the adhesive resin can pass. A plurality of the resin passages 131 may be preferably formed on the side of the longitudinal direction of the hollow fiber membrane bundle formed in a large area. An adhesive resin can be injected and moved into spaces formed between the respective wing members 120 and between the core member 110 and the cover member 130 through the plurality of resin passages 131. [ Both end portions of the hollow fiber membrane bundle are disposed in a space formed with the boundary between the core member 110, the wing member 120 and the cover member 130, and can be fixed through the adhesive resin. The shape, size, number, spacing, etc. of the resin passages 131 may be appropriately changed as needed in addition to those illustrated in the drawings.

The cover member 130 may have a protrusion 132 protruding outward in the circumferential direction. The protrusion 132 may be formed in the longitudinal direction of the hollow fiber membrane bundle. The protrusion 132 may preferably be located at the top of the arc, as illustrated in the figure. The cross-sectional area of the protrusion 132 may be a square as illustrated in the drawing, and may be a triangle, a trapezoid, an ellipse, a semicircle, or the like other than a quadrangle.

A step 133 may be formed on the upper end of the protrusion 132 of the cover member 130. Therefore, the protrusion 132 may be formed with a latching protrusion 133 due to a step. The projecting step 133 of the cover member 130 can be formed to be preferably high toward the hollow fiber membrane and low in the opposite direction.

A fastening part 134 slidingly engaged with the rail part 126 of the wing member 120 may be formed at the distal end of the cover member 130. [ The fastening portion 134 has a shape protruding from the distal end portion of the cover member 130, and the size of the rail portion 126 has almost the same size. Preferably, the fastening portion 134 may be formed on both ends of the cover member 130. [ It is possible to facilitate the fastening of the wing member 120 and the cover member 130 by the sliding engagement structure of the rail portion 126 and the fastening portion 134. [

6 is a view showing a fastening structure with a cap and a housing for a hollow fiber membrane fixing and fluid dispensing according to an embodiment of the present invention in which the engaging jaw 133 of the cover member 130 and the engaging jaw 133 of the housing 20 21 are engaged with each other.

The step 133 of the cover member 130 can be formed to be preferably high toward the hollow fiber membrane and low in the opposite direction. The step 21 may be formed on the inner circumferential surface of the housing 20 to be lower toward the hollow fiber membrane and higher in the opposite direction so as to correspond to the step 133 of the cover member 130. [

The engaging protrusions 133 of the cover member 130 and the engaging protrusions 21 of the housing 20 are engaged with each other so as to be engaged with each other in all directions such as the lengthwise direction of the hollow fiber membrane bundle, It is possible to sufficiently secure the support force against the fluid pressure acting on the piston.

20: Housing
21, 133: Jaw (step)
100: Cap for hollow fiber membrane fixation and fluid dispensing
110: core member
111, 121, 122, 123: fluid channel
112:
120: wing member
124, 131: resin passage
125: groove for resin filling
126: Le Mans
127:
130: cover member
132: protrusion
134:

Claims (11)

A core member having a cylindrical shape and having a flow passage through which fluid can pass, the core member being provided at a distal end of the hollow fiber membrane bundle;
And a plurality of openings through which the fluid can pass and a passage through which the adhesive resin can pass and which are provided along the circumferential direction on the outer circumferential surface of the core member while being installed in the longitudinal direction of the hollow fiber membrane bundle, A wing member having a groove formed therein through which an adhesive resin can pass; And
And a cover member which is formed in an arc-shaped plate shape and has a passage through which the adhesive resin can pass, and which is provided so as to form a cylinder as a whole along the circumferential direction by connecting the distal ends of the plurality of wing members, Dispensing cap.
The method according to claim 1,
Wherein the wing member is disassembled and assembled to the core member.
The method according to claim 1,
Wherein the wing member and the cover member are slidingly engaged.
The method of claim 3,
Characterized in that the wing member has a groove shaped rail portion at the distal end and the cover member has a fastening portion at the distal end for sliding engagement with the rail portion of the wing member.
The method of claim 3,
Wherein the cover member has a protrusion protruding outward in the circumferential direction and has a step formed on the upper end of the protrusion.
6. The method of claim 5,
And a protruding portion of the cover member is formed with a stopper due to a step.
The method according to claim 6,
Wherein the projecting step of the cover member is formed to be higher toward the hollow fiber membrane.
8. The method of claim 7,
And the engaging jaws of the cover member engage with the engaging jaws formed corresponding to the inner circumferential surface of the hollow fiber membrane module housing.
6. The method of claim 5,
Characterized in that the cross-sectional shape of the protrusion of the cover member is rectangular, trapezoidal, elliptical or semicircular.
The method according to claim 1,
Wherein the core member has a plurality of partition walls formed along the circumferential direction on the inner circumferential surface of the cylinder.
11. The method of claim 10,
Wherein the hollow fiber membrane bundle end of the wing member is inclined to decrease in length toward the core member.

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