KR102045496B1 - Hollow fiber membrane module - Google Patents

Hollow fiber membrane module Download PDF

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Publication number
KR102045496B1
KR102045496B1 KR1020130052049A KR20130052049A KR102045496B1 KR 102045496 B1 KR102045496 B1 KR 102045496B1 KR 1020130052049 A KR1020130052049 A KR 1020130052049A KR 20130052049 A KR20130052049 A KR 20130052049A KR 102045496 B1 KR102045496 B1 KR 102045496B1
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KR
South Korea
Prior art keywords
air
hollow fiber
fiber membrane
distribution unit
air distribution
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Application number
KR1020130052049A
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Korean (ko)
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KR20140132612A (en
Inventor
김상윤
최웅
김도희
Original Assignee
주식회사 엘지화학
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Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to KR1020130052049A priority Critical patent/KR102045496B1/en
Priority to PCT/KR2013/008861 priority patent/WO2014106982A1/en
Publication of KR20140132612A publication Critical patent/KR20140132612A/en
Application granted granted Critical
Publication of KR102045496B1 publication Critical patent/KR102045496B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/18—Use of gases
    • B01D2321/185—Aeration

Abstract

The present invention relates to a hollow fiber membrane module, hollow fiber membrane; A support part having acid pores and coupled to a lower portion of the hollow fiber membrane; A collector coupled to an upper portion of the hollow fiber membrane to collect permeate; An air passage having an air passage therein, one end of which is connected to the support part and the other end of which is connected to the collector to diffuse air to an area spaced from the acid pores; And an air distribution part protruding from the lower end of the diffuser so that the through hole communicates with the air flow path. Thereby, the amount of air supplied to the upper region and the lower region of the hollow fiber membrane can be adjusted.

Description

Hollow fiber membrane module {HOLLOW FIBER MEMBRANE MODULE}

The present invention relates to a hollow fiber membrane module, and more particularly, to a hollow fiber membrane module in which air is properly distributed so that contaminants in the hollow fiber membrane can be effectively removed.

As is well known, membrane technology is a type of separation technology that utilizes material selective permeation properties of polymeric materials.

Existing membranes are of various types, such as spiral wound, tubular, hollow, and plate and frame.

Since the hollow fiber type uses a hollow tube having a diameter of 0.2 to 2 mm and a hollow hollow tube, the ratio of the membrane area per unit volume is relatively higher than that of the other types, resulting in higher productivity.

Hollow fiber membrane is formed into a bundle of hollow fiber modules.

Among the hollow fiber membrane modules, so-called immersion hollow fiber membrane modules are used by directly immersing them in a tank of fluid to be treated.

1 is a view showing a conventional immersion hollow fiber membrane module.

As shown in FIG. 1, the conventional hollow fiber membrane module includes a hollow fiber membrane 10 having a hollow 12 therein, a support 20 coupled to a lower end of the hollow fiber membrane 10, and the hollow fiber membrane The collector 30 is coupled to the upper end of the 10.

A support 40 for connecting the support 20 and the collector 30 is provided between the support 20 and the collector 30.

The support portion 20 is provided with an outlet hole, a nozzle, an air diffuser or an air hole 22 (hereinafter, referred to as an "acid hole 22") through which air flows.

Air flowing out through the acid pores 22 moves to the upper region to shake the hollow fiber membrane 10 so that contaminants on the surface of the hollow fiber membrane 10 are removed from the surface of the separator.

By the way, in such a conventional submerged hollow fiber membrane module, part of the air (bubble) flowing out through the acid pores 22 of the support portion 20 is separated (moved) to the outside of the hollow fiber membrane module (hollow membrane) 10 Will not contribute to the separation of contaminants on the surface. In particular, the upper region of the hollow fiber membrane 10 is more severe due to the difference in operating pressure than the lower region, and the contamination may be further increased because air is released.

Accordingly, an object of the present invention is to provide a hollow fiber membrane module capable of suppressing the occurrence of contamination of the upper region of the hollow fiber membrane.

In addition, another object of the present invention is to provide a hollow fiber membrane module capable of evenly dispersing air.

In addition, another object of the present invention is to provide a hollow fiber membrane module that can adjust the amount of air supplied to the upper region and the lower region of the hollow fiber membrane.

The present invention, in order to achieve the above object, the hollow fiber membrane; A support part having acid pores and coupled to a lower portion of the hollow fiber membrane; A collector coupled to an upper portion of the hollow fiber membrane to collect permeate; An air passage having an air passage therein, one end of which is connected to the support part and the other end of which is connected to the collector to diffuse air to an area spaced from the acid pores; And an air distribution unit having a through hole therein and protruding from the lower end of the diffuser so that the through hole communicates with the air flow path.

Here, the through hole of the air distribution unit may be formed to have a minimum flow cross-sectional area of 3.0 * 10 -4 to 3.2 * 10 -4 m 2.

The support part may have a storage space for temporarily storing the air flowing into the diffuser and the diffuser, and the air distribution unit may be formed to protrude 0.1 to 100 mm from the ceiling of the storage space.

The outer surface of the air distribution unit may be formed to gradually reduce the outer width along the protruding direction.

The air distribution unit may have a circular or polygonal cross section.

The outer surface of the air distribution unit may be provided with a guide portion for guiding air is cut or penetrated.

The air distribution unit may be detachably provided to the support unit or the diffuser.

The air distribution unit may be configured to adjust the protruding length to the ceiling of the storage space.

The air distribution unit may be configured to be screwed to the support or the diffuser.

The air distribution unit is screwed to the diffuser, the air distribution unit, the through-hole body is formed therein; An incision formed by cutting the body around the through hole; And an inclined portion whose inner width is reduced along the protruding direction.

An end of the diffuser may be configured to have a guide inclined surface formed to reduce the outer width along the protruding direction.

The guide inclined surface may be formed in surface contact with the inclined portion.

As described above, according to an embodiment of the present invention, the hollow fiber membrane is configured to include a support unit having acid pores and an air flow path provided therein to diffuse air in an area spaced from the acid pores. Contaminants in the upper region of can be removed.

In addition, by providing a through hole and an air distribution part projecting to the lower end of the diffuser, air can be properly distributed to the lower region and the upper region of the hollow fiber membrane.

In addition, the outer surface of the air distribution portion is configured such that the outer width is gradually reduced along the protruding direction, so that more air can be distributed outward along the radial direction of the support.

Further, by providing a guide portion partially cut or penetrated on the outer surface of the air distribution portion, it is possible to suppress the lean air from the region proximate to the air distribution portion.

In addition, by configuring the air distribution unit detachably to the support or diffuser, it can be easily replaced with another air distribution unit.

In addition, by screwing the air distribution unit to the support or diffuser, it is possible to control the amount of air moving to the outside of the support by adjusting the protruding length of the air distribution.

In addition, by forming an incision in the air distribution portion and by expanding or contracting the air distribution portion in the radial direction, it is possible to adjust the flow rate of the air flowing into the diffuser.

1 is a view showing a conventional immersion hollow fiber membrane module,
Figure 2 is a side view of the hollow fiber membrane module according to an embodiment of the present invention,
3 is a cross-sectional view of FIG.
4 is an enlarged view of the supporting region of FIG. 3;
5 is a modification of the upper diffuser of FIG.
6 is a bottom view of the air distribution unit of FIG. 3;
7 to 10 are modified examples of the air distribution unit of FIG.
11 is a sectional view of main parts of the hollow fiber membrane module according to another embodiment of the present invention;
12 is a cross-sectional view of main parts of a hollow fiber membrane module according to another embodiment of the present invention;
13 is a perspective view of the air distribution unit of FIG.
14 is a view for explaining the operation of the air distribution unit of FIG.

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

2 to 4, the hollow fiber membrane module according to an embodiment of the present invention, the hollow fiber membrane 110; Is provided with an acid pores 133, the support 130 is coupled to the lower portion of the hollow fiber membrane 110; A collector 150 coupled to an upper portion of the hollow fiber membrane 110 to collect permeate; An air flow path 162 is provided therein, one end of which is connected to the support 130 and the other end of which is connected to the collector 150 to air in an area spaced apart from the acid pores 133 of the support 130. An diffuser 160 for dispersing; And an air distribution unit 190 having a through hole 192 therein, wherein the through hole 192 protrudes from a lower end of the diffuser 160 to communicate with the air flow path 162. Can be.

The hollow fiber membrane 110 may be composed of, for example, a plurality of bundles 112.

Each bundle 112 of the hollow fiber membrane 110 is, for example, enlarged in Figure 4, a predetermined number (for example, several to several hundred) of the hollow fiber 114 (hollow fiber, medium air) Iii).

Each bundle 112 of the hollow fiber membrane 110 may be spaced apart from each other at a predetermined interval.

The lower end of the hollow fiber membrane 110, for example, may be configured to be blocked by the potting material 134 of the support 130. The lower end of the hollow fiber membrane 110 is surrounded by the potting material 134 is blocked.

The support 130 may be implemented, for example, in a disk shape.

The support 130 may be provided with a lower diffuser 131 for radiating the air 124.

The lower diffuser 131 may include a plurality of diffuser holes 133 formed through the support 130. The acid pores 133 may be formed through the potting material 134.

The acid pores 133 may be formed to be spaced apart from each other at a predetermined distance, for example.

The acid pores 133 may be formed, for example, between the bundles 112 of the hollow fiber membrane 110.

The acid pores 133 may be formed to be scattered according to a predetermined pattern. As a result, air supplied to the bottom of the support 130 may be diffused through the diffuser 133.

The collector 150 may be provided at an upper end of the hollow fiber membrane 110.

The upper end of the hollow fiber membrane 110 may be configured to be open. As a result, water (permeated water) introduced into each of the hollow yarns may be discharged through the upper end of the hollow fiber membrane 110 and collected (joined) by the collector 150 and may be discharged.

The collector 150 may be implemented, for example, in a disk shape.

A suction force (negative pressure or negative pressure) may be applied to the upper end of the hollow fiber membrane 110 or the collector 150 so that the inflow of the permeate of the hollow fiber membrane 110 is promoted. For example, the collector 150 may be connected to a pump (not shown) so that suction force can act.

An diffuser 160 may be provided between the support 130 and the collector 150.

An air passage 162 may be provided inside the diffuser 160.

One end of the diffuser 160 may be connected to the support 130, and the other end thereof may be connected to the collector 150.

In the present exemplary embodiment, the diffuser 160 is configured as one, but may be configured in plural.

The hollow fiber membrane 110 has a longer length than the distance between the support 130 and the collector 150 may be configured to be loosely cast. As a result, each of the hollow fiber membranes 110 flows by the action of the air supplied through the acid pores 133 and / or the air diffuser 160 of the support 130, and thus each surface of the hollow fiber 114. Foreign matter attached to the can be removed.

On the other hand, the support 130 may be provided with an air supply unit 140 so that air can be supplied. Although not shown in the drawing, the air supply unit 140 may be provided with a blower (blower).

A storage space 136 may be formed at the bottom of the support 130 to temporarily store air.

The diffuser 160 may be connected to the support 130 so that a lower end thereof communicates with the storage space 136.

An upper diffuser 161 may be provided in the upper region of the diffuser 160 to be spaced apart from the diffuser 133 of the support 130.

In addition, the upper diffuser 161 may include, for example, a plurality of diffuser pores 163 formed through the diffuser 160.

In addition, as illustrated in FIG. 5, the upper diffuser 172 may be configured to include at least one branch pipe 172 coupled to the diffuser 160 by having a plurality of nozzle holes 173 on an outer surface thereof. It may be. For example, the branch pipes 172 may be configured to be spaced apart from each other in a vertical direction and / or a circumferential direction.

The support 130 may be provided with an air distribution unit 190.

The air distribution unit 190 may allow the air to be properly distributed to the acid pores 133 and the diffuser 160 of the support 130. Here, since the outlet pressure of the upper diffuser 161 of the diffuser 160 is lower than the lower diffuser 131 of the support 130, the air supplied to the inside of the storage space 136 Concentrated and outflowed to the diffuser 160, the air pores 133 disposed on the outer side of the support 130 disposed relatively far from the inlet of the diffuser 160 can be provided relatively less air. have. Accordingly, the hollow fiber membrane 110 disposed outside in the radial direction of the support 130 may be relatively less contaminant than the hollow fiber membrane 110 disposed in the center.

The air distribution unit 190 is disposed to protrude downward from the ceiling 138 of the storage space 136 to allow more air inside the storage space 136 to the outside along the radial direction of the support 130. Can be distributed to be moved. As a result, it is possible to promote the removal of contaminants adhered to the surface of the hollow fiber membrane 110 disposed outside the support 130.

More specifically, the air distribution unit 190 may include a through hole 192 and the through hole 192 may be disposed in communication with the air flow path 162 of the diffuser 160. As a result, the air passing through the air distribution unit 190 may be introduced into the diffuser 160.

The air distribution unit 190, for example, may be configured to protrude downward from the lower end of the diffuser (160).

The air distribution unit 190 may include, for example, a body 191 having a through hole 192 therein.

The body 191 of the air distribution unit 190 may be configured to include, for example, an outer surface 193 of which an outer width (or outer diameter) is gradually reduced in the protruding direction. As a result, air may be guided away from the air distribution unit 190 along the outer surface 193 of the air distribution unit 190. Accordingly, more air (air volume) is moved to the outer (border) area of the support 130 along the radial direction of the support 130, so that it is relatively uniform with respect to the entire area of the support 130 (evenly). Acid can be achieved. In the present exemplary embodiment, the outer surface 193 of the air distribution unit 190 is illustrated as having a straight line (cross section), but may be configured as a curved line (cross section).

Through-hole 192 of the air distribution unit 190, for example, the minimum flow cross-sectional area (A1) may be configured to be smaller than the minimum flow cross-sectional area (A) of the diffuser (160). Thereby, the air (air amount) which flows into the diffuser 160 can be suppressed.

The through hole 192 of the air distribution unit 190, for example, may be formed to have a minimum flow cross-sectional area of 3.0 * 10 -4 to 3.2 * 10 -4 m 2.

For example, the air distribution unit 190 may be formed to protrude from 0.1 to 100 mm from the ceiling 138 of the storage space 136.

More specifically, as shown in FIG. 6, the air distribution unit 190 may be configured such that a portion (upper) region is inserted into the support 130.

The ceiling 138 of the storage space 136 may be formed with a recessed portion 139 recessed upward so that the air distribution unit 190 may be inserted. According to this configuration, the protrusion length H1 of the ceiling 138 of the storage space 136 of the air distribution unit 190 can be finely adjusted.

Body 191 of the air distribution unit 190, for example, the outer surface 193 may be implemented in a circular or polygonal shape. Thereby, the pattern of the air guided to the outside of the air distribution unit 190 can be configured in various ways.

More specifically, for example, as shown in FIG. 7, the air distribution unit 190 may be configured to have a circular outer surface 193a.

In addition, as shown in FIG. 8, the air distribution unit 190 may be configured to include an outer surface 193b having a rectangular shape.

In addition, as shown in FIG. 9, the air distribution unit 190 may be configured to include an outer surface 193c having a polygonal shape. In the present exemplary embodiment, the outer surface 193 of the air distribution unit 190 is illustrated as being implemented in a hexagon among polygons, but may be configured in various ways such as triangle, pentagon, octagon. In addition, although the through hole 192 is formed in a circular shape, the minimum flow cross-sectional area A may be formed in the same shape.

On the other hand, the outer surface 193 of the air distribution unit 190 may be provided with a guide portion 195 for guiding the air by cutting a portion or through. As a result, the air is guided in a direction away from the air distribution unit 190 by the outer surface 193 of the air distribution unit 190, thereby suppressing the shortage of air in the proximal region of the air distribution unit 190. can do.

The guide 195 may be formed to be cut (recessed) inward, for example, as shown in FIG. 10. In the present exemplary embodiment, the guide 195 is cut out in an arc shape, but the size, shape, position, and number may be appropriately adjusted.

The guide unit 195 may extend in parallel with the through hole 192 of the air distribution unit 190.

By this configuration, when the hollow fiber membrane module of the present embodiment is disposed inside the raw water to be treated and operation is started, air is supplied into the storage space 136 of the support 130 through the air supply 140. Can be.

The air supplied into the storage space 136 may move upward.

The air distribution unit 190 may allow a part of air to be supplied to the diffuser 160 through the through hole 192. At the same time, the air distribution unit 190 may guide the air away from the air distribution unit 190 by the outer surface 193 inclined upward.

As a result, the phenomenon in which the air supplied to the storage space 136 is mainly concentrated in the diffuser 133 disposed near the diffuser 160 and the diffuser 160 may be suppressed.

Air is evenly distributed to each of the air pores 133 of the support 130 by the air distribution unit 190, so that foreign matters adhered to the surfaces of the hollow fiber membranes 110 may be evenly removed.

Hereinafter, another embodiment of the present invention will be described with reference to FIG. 11.

The same and equivalent parts as those described above and illustrated are omitted for convenience of description in the drawings and the same reference numerals are used to describe the same reference numerals, and redundant descriptions of some components may be omitted.

Hollow fiber membrane module of the present embodiment, the hollow fiber membrane 110; Is provided with an acid pores 133, the support 130 is coupled to the lower portion of the hollow fiber membrane 110; A collector 150 coupled to an upper portion of the hollow fiber membrane 110 to collect permeate; An air passage 162 is provided therein, one end of which is connected to the support part 130 and the other end of which is connected to the collector 150 to diffuse air in an area spaced from the acid pores 133. 160; And an air distribution unit 210 having a through hole 215 therein, the through hole 215 protruding from the lower end of the diffuser 160 to communicate with the air flow path 162. Can be.

The diffuser 160 may be disposed at the center of the support 130 and the collector 150.

The support 130 may be provided with a storage space 136 in which air is temporarily stored.

Meanwhile, the air distribution unit 210 may be provided in the storage space 136.

The air distribution unit 210 may be provided with a through hole 215 to allow air to pass therethrough.

The through hole 215 may be configured to have a predetermined minimum flow cross-sectional area (A2).

Although not shown in the figure, the air distribution unit 210 may be formed of a plurality of different minimum flow cross-sectional area (A2).

The air distribution unit 210, for example, may be provided detachably to the support 130 or the diffuser (160).

The diffuser 160 may be configured to protrude from the ceiling 138 of the storage space 136.

The air distribution unit 210 may be detachably coupled to the diffuser 160, for example.

The air distribution unit 210 may be configured to, for example, adjust the protrusion length H2 with respect to the ceiling 138 of the storage space 136. Thereby, the amount of air moved outward in the radial direction of the support part 130 by the air distribution unit 210 can be adjusted.

For example, the diffuser 160 may include a male screw portion 165, and the air distribution unit 210 may include a female screw portion 214 that is screwed to the male screw portion 165.

The air distribution unit 210 may include, for example, a body 211 having a through hole 215 formed therein.

The body 211 is, for example, a cylindrical cylindrical portion 212 and the distribution portion 213 is formed to gradually reduce the outer width along the protruding direction on one side of the cylindrical portion 212 to distribute air ) May be provided.

The female screw portion 214 may be formed in the cylindrical portion 212.

The through hole 215 may have a minimum flow cross section A2 at the lower end of the distribution part 213.

By this configuration, when the hollow fiber membrane module of the present embodiment is disposed inside the raw water to be treated and operation is started, air is supplied into the storage space 136 of the support 130 through the air supply 140. Can be.

The air distribution unit 210 may be fixed to the diffuser 160 at a predetermined protruding length (H2).

The air distribution unit 210 is rotated relative to the diffuser 160 during use so that the air distribution unit by appropriately adjusting the projection length (H2) to the ceiling 138 of the air distribution unit 210, The amount of air guided to the outside of the support part 130 can be adjusted by 210.

More specifically, when the air distribution unit 210 is moved so that the protrusion length (H2) with respect to the ceiling 138 of the storage space 136 is increased, the amount of air moved to the outside of the support 130 is increased, When the protruding length H2 of the air distribution unit 210 is reduced, the amount of air moving to the outside of the support 130 may be reduced.

On the other hand, to adjust the amount of air introduced into the diffuser 160, the minimum flow cross-sectional area (A2) is different (for example, the minimum flow of the through-hole 215 of the first air distribution unit 210 is installed) It can be replaced with the air distribution unit 210 having a through hole 215 (larger or smaller than the cross-sectional area).

Hereinafter, another embodiment of the present invention will be described with reference to FIGS. 12 to 14.

Hollow fiber membrane module of the present embodiment, the hollow fiber membrane 110; Is provided with an acid pores 133, the support 130 is coupled to the lower portion of the hollow fiber membrane 110; A collector 150 coupled to an upper portion of the hollow fiber membrane 110 to collect permeate; An air passage 162 is provided therein, one end of which is connected to the support part 130 and the other end of which is connected to the collector 150 to diffuse air in an area spaced from the acid pores 133. 160; And an air distribution unit 230 having a through hole 235 therein, wherein the through hole 235 protrudes from the lower end of the diffuser 160 to communicate with the air flow path 162. Can be.

At the bottom of the support 130, as illustrated in FIG. 12, a storage space 136 may be provided to temporarily store air.

The storage space 136 may be provided with an air distribution unit 230.

The air distribution unit 230 may be configured to have an outer surface whose outer width is reduced along the protruding direction so that the air moves to the outside.

The air distribution unit 230 may be configured to be detachable with respect to the support 130 or the diffuser (160).

The air distribution unit 230 may be configured to be screwed with respect to the support 130 or the diffuser (160).

The diffuser 160 may be configured to protrude from the ceiling 138 of the storage space 136.

More specifically, the air distribution unit 230 may be screwed to the lower end of the diffuser (160).

The air distribution unit 230 may be configured to adjust the projection length (H3) for the ceiling 138 of the storage space 136.

For example, the air distribution unit 230 is screwed to the support 130 or the diffuser 160, the length of the screw portion is made long, and the air distribution unit 230 is raised, the storage space ( Protruding length (H3) of the air distribution unit 230 with respect to the ceiling 138 of 136 can be adjusted.

On the other hand, the air distribution unit 230, for example, may be configured to be able to adjust the minimum flow cross-sectional area (A3) of the through hole 235.

The air distribution unit 230 may include, for example, a body 231 in which the through hole 235 is formed; An incision 237 formed by cutting the body 231 around the through hole 235; And an inclined portion 238 whose inner width is reduced along the protruding direction.

For example, the body 231 may be formed such that at least one region has an outer width reduced in a protruding direction.

More specifically, for example, the body 231 is formed such that the cylindrical portion 232 having a cylindrical shape and the outer width (outer diameter) gradually decrease along the protruding direction at one side of the cylindrical portion 232. A distribution unit 233 for distributing air may be provided.

A female screw portion 234 may be formed in the cylindrical portion 232 to be screwed to the male screw portion 165 of the diffuser 160.

For example, as illustrated in FIG. 13, the body 231 (actually, the distribution part 233) includes a plurality of cutouts 237 cut along one direction (the lower end in the drawing) along the moving direction of air. ) May be formed.

Here, the number and size (width and length) of the cutout 237 may be appropriately adjusted.

On the other hand, the diffuser 160 may be provided with a guide inclined surface 167 formed to reduce the outer width in the protruding direction.

The guide slope 167 may be formed on the outer side (lower side in the drawing) of the male screw portion 165.

The guide inclined surface 167 may be configured to be in surface contact with the inclined portion 238. As a result, when the air distribution unit 230 moves upward, the inclined portion 238 is pushed out by the guide inclined surface 167 so that the minimum flow cross section A3 of the through hole 235 may be increased. have.

By this configuration, when the hollow fiber membrane module of the present embodiment is disposed inside the raw water to be treated and operation is started, air is supplied into the storage space 136 of the support 130 through the air supply 140. Can be.

The air distribution unit 230 may be located at a predetermined protruding length (H3).

Air may be supplied into the storage space 136, and the supplied air may move upward.

The air distribution unit 230 may guide the air moved upward at a predetermined position to be moved to the outside of the support 130.

The air distribution unit 230 may adjust the amount of air moved to the outside of the support 130 by adjusting the protrusion length (H3).

In addition, the air distribution unit 230 may adjust the amount of air introduced into the diffuser 160 by adjusting the minimum flow cross-sectional area (A3) of the through hole 235.

More specifically, to increase the minimum flow cross-sectional area A3 of the through hole 235, the inclined portion 238 of the guide inclined surface 167 of the diffuser 160 and the air distribution unit 230. The air distribution unit 230 may be rotated in a direction in which the contact surface is relatively moved.

If the air distribution unit 230 continues to rotate in the same direction while the guide slope surface 167 and the inclined portion 238 are in contact, the guide slope surface 167 presses the inclined portion 238 to the The inclined portion 238 is spread outward as shown in FIG. 14. As a result, the minimum flow cross-sectional area A4 of the through hole 235 is increased. In this case, the protruding length H4 of the ceiling 138 of the air distribution unit 230 may be reduced. As a result, the amount of air introduced into the air distribution unit 230 may increase, and the amount of air moving in a direction away from the air distribution unit 230 may be reduced.

In the above, specific embodiments of the present invention have been shown and described. However, the present invention can be embodied in various forms without departing from the spirit or essential features thereof, so the embodiments described above should not be limited by the details of the detailed description.

In addition, even if the embodiment is not listed one by one in the detailed description described above should be construed broadly within the scope of the technical idea defined in the appended claims. In addition, all changes and modifications included within the technical scope of the claims and their equivalents shall be encompassed by the appended claims.

110: hollow fiber membrane 112: bundle
114: hollow fiber 130: support
131: lower diffuser 133, 163: diffuser
134: potting material 136: storage space
138: ceiling 140: air supply
160: diffuser 161,171: upper diffuser
162: air passage 172: branch pipe
173: nozzle hole 190: air distribution
191: body 192: through hole
193: outer surface 193a: cylindrical outer surface
193b: outer surface of square shape 193c: outer surface of polygon shape
195: guide

Claims (12)

Hollow fiber membranes;
A support part having acid pores and coupled to a lower portion of the hollow fiber membrane;
A collector coupled to an upper portion of the hollow fiber membrane to collect permeate;
An air passage having an air passage therein, one end of which is connected to the support part and the other end of which is connected to the collector to diffuse air to an area spaced from the acid pores; And
Includes a through hole therein, the air distribution portion protruding from the lower end of the diffuser so that the through hole is in communication with the air flow path;
The support portion is provided with a storage space for temporarily storing the air flowing into the acid pores and the diffuser,
The air distribution unit is formed to protrude from 0.1 to 100 mm from the ceiling of the storage space,
The air distribution unit is configured to adjust the protruding length to the ceiling of the storage space,
The air distribution unit is characterized in that the screwed to the support or the diffuser,
Hollow fiber membrane module. The method of claim 1,
The through-hole of the air distribution unit is a hollow fiber membrane module, characterized in that the minimum flow cross section is formed to have a 3.0 * 10 -4 to 3.2 * 10 -4 m 2. delete The method of claim 1,
The outer surface of the air distribution unit is hollow fiber membrane module, characterized in that the outer width is formed to gradually decrease in the protruding direction. The method of claim 1,
The air distribution unit hollow fiber membrane module, characterized in that the cross section is circular or polygonal. The method of claim 5,
Hollow fiber membrane module, characterized in that the guide portion for guiding the air is cut or penetrated through the outer surface of the air distribution unit. The method of claim 1,
The air distribution unit is a hollow fiber membrane module, characterized in that detachably provided to the support or the diffuser. delete delete The method of claim 1,
The air distribution unit is screwed to the diffuser,
The air distribution unit, the through-hole body is formed therein; An incision formed by cutting the body around the through hole; And an inclined portion whose inner width is reduced along the protruding direction. The method of claim 10,
The hollow fiber membrane module, characterized in that the end of the diffuser is provided with a guide inclined surface formed to reduce the outer width along the protruding direction. The method of claim 11,
The guide slope surface is hollow fiber membrane module, characterized in that formed in surface contact with the inclined portion.
KR1020130052049A 2013-01-07 2013-05-08 Hollow fiber membrane module KR102045496B1 (en)

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KR101960727B1 (en) * 2018-11-08 2019-07-31 주식회사 디어포스멤브레인스 Membrane module with air duffser and water treatment system useing the same

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KR200368691Y1 (en) 2004-08-16 2004-12-03 김정학 An apparatus for disposing waste water by a hollow fiber membrane module
JP2011110499A (en) 2009-11-26 2011-06-09 Kobelco Eco-Solutions Co Ltd Hollow fiber membrane module and water treatment method
WO2013105795A1 (en) 2012-01-11 2013-07-18 엘지전자 주식회사 Hollow fiber membrane module

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KR100813890B1 (en) * 2004-02-02 2008-03-18 주식회사 코오롱 A submerged hollow fiber membrane module
KR100999038B1 (en) * 2008-08-01 2010-12-09 (주)필로스 Membrane module
KR101718161B1 (en) * 2010-01-14 2017-03-20 엘지전자 주식회사 End cap for mounting hollow fiber membrane and water treatment module comprising the same

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Publication number Priority date Publication date Assignee Title
KR200368691Y1 (en) 2004-08-16 2004-12-03 김정학 An apparatus for disposing waste water by a hollow fiber membrane module
JP2011110499A (en) 2009-11-26 2011-06-09 Kobelco Eco-Solutions Co Ltd Hollow fiber membrane module and water treatment method
WO2013105795A1 (en) 2012-01-11 2013-07-18 엘지전자 주식회사 Hollow fiber membrane module

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