KR101816206B1

KR101816206B1 - Hollow fiber membrane module

Info

Publication number: KR101816206B1
Application number: KR1020150135275A
Authority: KR
Inventors: 장홍진
Original assignee: 롯데케미칼 주식회사
Priority date: 2015-09-24
Filing date: 2015-09-24
Publication date: 2018-01-08
Also published as: KR20170036293A

Abstract

A hollow fiber membrane module according to an embodiment of the present invention includes a housing having a plurality of hollow fiber membranes disposed therein, a side cap coupled to one side of the housing and having a fluid inlet / A baffle which is connected to one end of the housing and branches the flow of the fluid flowing into or out of the side cap and a potting filler layer filling the inside of the side cap, And a plurality of adhesive holes may be formed on the baffle so that a part of the potting filler layer penetrates and is fixed.

Description

[0001] HOLLOW FIBER MEMBRANE MODULE [0002]

The present invention relates to a hollow fiber membrane module.

In addition to the enrichment industry, as the industry has developed, the problem of contaminated water such as wastewater and sewage has been increasing gradually. Especially, in a factory where a large amount of polluted water is generated, regulation of polluted water discharge is strengthened due to environmental problems. Therefore, there is a growing demand for a technology capable of self-treating and discharging purified water.

At the same time, households are increasingly interested in water consumed at home because of the deterioration of tap water and anxiety about tap water. Therefore, the demand for domestic water purifiers necessary for purifying tap water is also increasing rapidly.

The hollow fiber membrane module may have a hollow fiber membrane disposed therein to remove contaminants from water passing through the hollow fiber membrane module and to purify purified water. Therefore, in recent years, the demand for hollow fiber membrane modules has been rapidly increasing from large-scale applications such as purification of industrial polluted water to small-scale applications such as domestic water purifiers.

On the basis of the technical background as described above, the present invention provides a hollow fiber membrane module capable of reducing the possibility of breakage, thereby reducing the cost required for installation, maintenance and repair of the product, and improving durability.

The plurality of adhesive holes may be arranged along the upper circumference of the baffle.

The baffle may be provided with a plurality of first rectifying holes disposed below the plurality of adhesive holes and through which the fluid introduced through the fluid inlet and outlet passes.

The baffle may include a fluid branching region disposed corresponding to the fluid inlet and moving the fluid introduced through the fluid inlet and outlet along the periphery of the baffle.

The fluid branching region may be disposed between the plurality of first flow holes.

The cross section of the plurality of first rectifying holes may be circular.

A plurality of second flow holes may be formed in the baffle between the plurality of adhesive holes and the plurality of first flow holes.

The cross section of the plurality of second flow holes may be a rectangular shape.

A part of the potting filler layer may penetrate a part of the second rectifying hole.

The baffle may include a support plate in contact with the end of the housing at the bottom of the baffle.

The support plate may be annular in shape.

The diameters of the support plate and the housing may correspond to each other.

On the upper side of the support plate, a discharge groove through which a part of the fluid can move can be formed.

And a fixing ring which is in contact with an upper end of the baffle and is fixedly coupled to an inner circumferential surface of the side cap and on which the potting filler layer is located.

And a separating plate which is located in the retaining ring and divides the retaining ring inside into at least two regions.

The separator plate may include at least two sub plates that intersect each other.

The at least two sub-plates may be integrally formed.

The baffle may include a separating plate fastening part which is fastened to one side of the separating plate on the baffle.

The fixing ring may be made of an elastic material.

The housing may be a tubular member.

According to the hollow fiber membrane module as described above, the possibility of breakage of the product is reduced and the durability is improved, so that the cost required for installation, maintenance and repair can be reduced.

1 is an exploded perspective view of a hollow fiber membrane module according to an embodiment of the present invention.
2 is a cross-sectional view of an upper part of a hollow fiber membrane module according to an embodiment of the present invention.
3 is a perspective view of a baffle included in a hollow fiber membrane module according to an embodiment of the present invention.
Figure 4 is a front view of the baffle of Figure 3;
5 is a view showing a state where a part of the potting filler layer and the baffle are combined.
6 is a perspective view of a retaining ring included in a hollow fiber membrane module according to an embodiment of the present invention.
Figure 7 is a plan view of the retaining ring of Figure 6;
8 is a view showing a state in which the hollow fiber membrane is fixed in the potting filler layer according to the present embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, since the sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

Also, throughout the specification, when an element is referred to as "including" an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. Also, throughout the specification, the term "on " means to be located above or below a target portion, and does not necessarily mean that the target portion is located on the image side with respect to the gravitational direction.

Hereinafter, a hollow fiber membrane module according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

FIG. 1 is an exploded perspective view of a hollow fiber membrane module according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view of an upper part of a hollow fiber membrane module according to an embodiment of the present invention.

1 and 2, the hollow fiber membrane module 100 according to the present embodiment includes a housing 110, a separation plate 120, a side cap 130, a fixing ring 140, a baffle 150, And a potting filler layer 160. The hollow fiber membrane module 100 according to the present embodiment has a plurality of adhesive holes 151 through which the potting filler layer 160 can pass and the potting filler layer 160 and the baffle 150 can be increased.

The housing 110 has an internal space of a predetermined size so that the hollow fiber membrane 10 is disposed inside. The housing 110 is made of a tubular member, and a plurality of hollow fiber membranes 10 may be disposed inside the housing 110.

The hollow fiber membrane 10 disposed inside the housing 110 is a tubular member having a hollow therein, and a plurality of fine pores are formed on the surface thereof. The hollow fiber membrane 10 is filtration means for removing foreign matter contained in raw water by filtering raw water such as wastewater, which is an object to be treated, supplied into the housing 110 in accordance with a pressure difference.

At this time, the hollow fiber membranes 10 are arranged in a bundle shape, so that the filtration efficiency and performance of the hollow fiber membrane module 100 according to the present embodiment can be improved.

According to the present embodiment, the side cap 130 is positioned above the housing 110 to cover the end of the housing 110. The side cap 130 is formed with a fluid inlet 132 through which the fluid is introduced from the outside or the fluid filtered by the hollow fiber membrane 10 is discharged to the outside. The fluid inlet 132 may be divided into an inlet or an outlet depending on whether the fluid is flowing into the hollow fiber membrane module 100 or discharged to the outside.

However, the present invention is not limited thereto, and the contaminated water may be introduced into the hollow fiber membrane module 100 and the air may be discharged to the outside, or the filtered water filtered by the hollow fiber membrane module 100 may be discharged to the outside, Since the fluid may flow in different directions, such as into the interior of the hollow fiber membrane module 100, the distinction between the inlet and outlet is not absolute. However, since the purpose of this embodiment is to filter the contaminated water to discharge the filtered water, it is possible to set a criterion that the flow of the fluid is the same as the flow of the water.

A fixing ring 140 for fixing the hollow fiber membrane 10 may be disposed in the side cap 130. The stationary ring 140 may be fixedly coupled to the inner circumferential surface of the side cap 130. As shown in FIG. 2, the stationary ring 140 is disposed in close contact with the inner circumferential surface of the side cap 130.

At this time, the fixing ring 140 may be in the form of a tubular member having a certain space formed therein. A plurality of hollow fiber membranes 10 may be fixed to an inner region of the fixing ring 140 divided by the separation plate 120 while a separation plate 120 to be described later is fixedly disposed inside the fixing ring 140 .

The stationary ring 140 may be made of an elastic material. The separation plate 120 can be more firmly fixed to the inside of the side cap 130 by the elasticity of the fixing ring 140. The fixed ring 140 is tightly adhered to the inner circumferential surface of the side cap 130 to prevent the contaminated water from passing between the stationary ring 140 and the side cap 130.

3 to 5, the baffle 150 may be disposed inside the side cap 130. As shown in FIG. The hollow fiber membrane 10 is very thin and can be easily broken by the water pressure of the contaminated water. For example, when the pressure applied to the hollow fiber membrane 10 from the fluid flowing into the hollow fiber membrane module 100 and flowing into the hollow fiber membrane module 100 is large, the hollow fiber membrane 10 may be damaged or the hollow fiber membrane 10 may be damaged Can be separated.

Accordingly, the baffle 150 can disperse the pressure of the fluid flowing from the outside. Alternatively, the baffle 150 may disperse the fluid so that the fluid discharged to the outside is not directed to the fluid inlet 132 at the same time. 2, the baffle 150 is disposed at a position corresponding to the fluid outlet 132 of the side cap 130, and is disposed between the housing 110 and the stationary ring 140. As shown in FIG.

That is, the fluid flowing through the fluid inlet / outlet 132 is changed in fluid path by the fluid branching region 159. For example, the fluid introduced into the fluid inlet 132 moves along the outer circumferential surface of the baffle 150. At this time, the fluid moves into the baffle 150 while moving along the outer peripheral surface of the baffle 150.

According to the present embodiment, a plurality of first flow holes 155 are formed in the body 156 of the baffle 150. The plurality of first rectifying holes 155 may introduce the fluid into the baffle 150 or may discharge the fluid to the outside of the baffle 150.

The plurality of first rectifying holes 155 may be formed in a uniform size through holes that pass through the body 156. At this time, the plurality of first rectifying holes 155 may have a circular cross-section. However, the present invention is not limited to this, and the plurality of first rectifying holes 155 may be formed in various polygonal shapes.

At this time, the plurality of first rectifying holes 155 are formed at the same height in the remaining region except for the fluid branching region 159 in the body 156. For example, the fluid branching region 159 may be disposed between the plurality of first flow holes 155. The fluid branching region 159 is formed at a position corresponding to the fluid outlet 132 to change the flow of the introduced fluid. For this purpose, as shown in FIG. 3, the fluid branching region 159 is blocked unlike the plurality of first flow holes 155 formed through the body 156 so that the inflow fluid is not transmitted.

On the other hand, a plurality of adhesive holes 151 are formed on the upper side of the baffle 150. The plurality of adhesive holes (151) are located above the plurality of first flow holes (155). At this time, the potting filler layer 160, which will be described later, can penetrate the plurality of adhesive holes 151. According to this embodiment, when the potting filler layer 160 for fixing the hollow fiber membrane 10 to be inserted into the hollow fiber membrane module 100 is applied, the applied potting filler layer 160 may be a plurality of baffles 150 The hollow fiber membrane module 100 can be uniformly distributed through the adhesive holes 151 of the hollow fiber membrane module 100.

At this time, when the potting filler layer 160 is evenly distributed through the plurality of adhesive holes 151 and cured, the plurality of hollow fiber membranes 10, the baffle 150 and the potting filler layer 160 can be integrally combined The possibility of being separated from each other is reduced, so that the durability of the hollow fiber membrane module 100 can be improved.

A plurality of second flow holes 153 may be formed between the plurality of adhesive holes 151 and the plurality of first flow holes 155. The plurality of second rectifying holes 153 may flow the fluid into the baffle 150 or may discharge the fluid to the outside of the baffle 150 in the same manner as the plurality of first rectifying holes 155 .

The plurality of second rectifying holes 153 penetrate between the plurality of second rectifying holes 153 of the baffle 150 in the same manner as the plurality of adhesive holes 151, And may be evenly distributed within the module 100.

That is, the plurality of second flow-regulating openings 153 may be used as the holes through which the fluid flows, and the potting filler layer 160 may be penetrated. For example, the potting filler layer 160 penetrates only the upper portion of the plurality of second rectifying holes 153, and the plurality of second rectifying holes 153, through which the potting filler layer 160 does not penetrate, Can flow in and out.

The plurality of second rectifying holes 153 may be formed in a uniform size through holes that pass through the body 156. At this time, the plurality of second rectifying holes 153 may have a rectangular cross section.

On the other hand, a support plate 158 contacting the end of the housing 110 is formed under the baffle 150. The support plate 158 may have an annular shape and may have a diameter corresponding to the diameter of the end of the housing 110. The support plate 158 of the baffle 150 comes into contact with the end of the housing 110 while the baffle 150 contacts the housing 110.

At this time, the support plate 158 is formed with a discharge groove 157 through which a part of the fluid can move. When the fluid flows out of the baffle 150, the outflowed fluid can move downward along the discharge groove 157 after passing through the first flow hole 155.

A housing coupling hole 158h is formed in the support plate 158 to fix the baffle 150 and the housing 110 to each other. The housing fastening hole 158h is a hole passing through the support plate 158 and a projection (not shown) of the housing 110 is inserted into the housing fastening hole 158h. Thereby, the baffle 150 can be prevented from rotating clockwise or counterclockwise by the hydraulic pressure of the fluid.

On the inner circumferential surface on the upper side of the baffle 150, a separating plate engaging portion 154 to be engaged with a separating plate 120 to be described later is formed. The separating plate fastening portion 154 allows the separating plate 120 to be firmly fixed to the bellows 150 as well as the stationary ring 140.

At this time, the separating plate fastening part 154 is formed with a fastening protrusion and inserted into the fastening groove formed in the separating plate 120, so that the separating plate fastening part 154 and the separating plate 120 can be fastened to each other.

On the upper side of the baffle 150, a stationary ring support 152 is formed to support the stationary ring 140 located above the baffle 150. The stationary ring support 152 may protrude in the lateral direction of the body 156 of the baffle 150. The stationary ring support part 152 can prevent the stationary ring 140 from being detached downward.

6 and 7, a groove 143h is formed on the inner circumferential surface of the stationary ring 140 according to the present embodiment. The groove 143h increases the contact area with the potting filler layer 160 to be described later so that the potting filler layer 160 is firmly fixed within the retainer ring 140. [

The groove 143h is formed by a partition 143 located on the inner peripheral surface of the body 141 of the stationary ring 140. [ The barrier ribs 143 protrude from the inner circumferential surface of the stationary ring 140 and the grooves 143h are formed between the barrier ribs 143 and the barrier ribs 143.

According to the present embodiment, at least one gas discharge hole 145 may be formed in the partition 143. The gas discharge hole 145 may discharge the fine gas generated when the potting filler layer 160 disposed inside the stationary ring 140 is cured. The potting filler layer 160 is formed by applying a liquid material to the interior of the stationary ring 140 and curing the liquid material. At this time, fine gas is generated in the process of curing the liquid material. If the gas is not discharged to the outside, the binding force between the potting filler layer 160 and the fixed ring 140 may be deteriorated. Or the durability of the potting filler layer 160 may be lowered by the gas.

As described above, the gas discharge hole 145 is formed in the stationary ring 140 of the present embodiment to discharge the fine gas generated in the potting filler layer 160 to the outside, thereby forming the potting filler layer 160 and the stationary ring 140 And the durability of the potting and filling layer 160 can be improved.

According to the present embodiment, the gas discharge holes 145 can be formed in the upper and lower partition walls 143 of the stationary ring 140. That is, the gas discharge holes 145 are formed in the uppermost partition wall and the lowermost partition wall of the stationary ring 140.

However, the present invention is not limited thereto, and the gas discharge hole 145 may be formed in the partition wall 143 located at the center of the stationary ring 140.

Meanwhile, according to the present embodiment, the fixing ring 140 may be integrally formed. That is, the fixing ring 140 may be in the form of a tubular member integrally formed. A plurality of grooves 143h are formed on the inner peripheral surface of the fixed ring 140 integrally formed.

As described above, the separation plate 120 is disposed inside the stationary ring 140 and divides the inside of the stationary ring 140 into at least two regions. For example, the separation plate 120 divides the inside of the stationary ring 140 into four regions. As a result, the plurality of hollow fiber membranes 10 can be divided and fixed in the four regions. However, the present invention is not limited to this, and the partition plate 120 may divide the inside of the stationary ring 140 into less than four equal parts such as two, three, or more, such as five, six, .

If the plurality of hollow fiber membranes 10 are tangled or aggregated together, filtration of the contaminated water by the hollow fiber membrane 10 may not proceed smoothly. In order to prevent this, the separation plate 120 may divide the inner space of the fixing ring 140 at regular intervals so that the hollow fiber membrane 10 can be evenly distributed inside the fixing ring 140. That is, the separation plate 120 divides the inside of the fixing ring 140 into a plurality of regions, and the hollow fiber membranes 10 are divided and arranged in the respective regions.

The separation plate 120 according to the present embodiment may be formed by cross-coupling the first sub-plate 122 and the second sub-plate 124. A plurality of through holes 121 may be formed in the separation plate 120 including the first sub plate 122 and the second sub plate 124.

According to this embodiment, when the potting filler layer 160 for fixing the hollow fiber membrane 10 inserted into the hollow fiber membrane module 100 is applied, the applied potting filler layer 160 is formed on the surface of the separator plate 120 Through holes 121 and can be evenly distributed inside the hollow fiber membrane module 100. [

At this time, when the potting filler layer 160 is uniformly distributed through the through holes 121, the plurality of hollow fiber membranes 10, the separator plate 120, and the potting filler layer 160 can be integrally combined The possibility of being separated from each other is reduced, and the durability of the hollow fiber membrane module 100 can be improved. In addition, the potting filler layer 160 and the separator plate 120 may be made of the same material to assure a higher bonding force.

In this embodiment, the two sub plates are cross-coupled with each other to divide the sub plate into four quadrants, for example. However, this is merely an example as described above. According to various variants of this embodiment, the separator plate may consist of two or more sub-plates that intersect each other. For example, the separator may be composed of three sub-plates, and the three sub-plates may cross each other to divide the interior of the stationary ring 140 into six regions.

Meanwhile, a plurality of sub-plays may be combined to divide the inside of the stationary ring 140 into an odd number of regions. For example, when the separator 120 is composed of three subplates and one end of each of the three subplates is disposed at an angle of 120 degrees with respect to each other, the inside of the retainer ring 140 is divided into three regions . &Lt; / RTI >

On the other hand, one end of the first sub-plate 122 and the second sub-plate 124 can be coupled to the groove 143h of the stationary ring 140. One end of the first sub plate 122 and the second sub plate 124 are inserted and fixed in the groove 143h so that the separation plate 120 can be firmly fixed within the fixing ring 140. [

As described above, a potting filler layer 160 is formed within the stationary ring 140. The potting filler layer 160 is formed by coating a liquid material in the stationary ring 140 and curing the liquid material.

Referring to FIG. 8, a plurality of hollow fiber membranes 10 are disposed between the potting and filling layers 160. The liquid phase material is cured to form the potting filler layer 160 and firmly fix the hollow fiber membrane 10 disposed between the potting filler layers 160.

According to the present embodiment, the potting filler layer 160 may be disposed to cover the upper and lower surfaces of the stationary ring 140. Referring again to FIG. 2, the potting filler layer 160 is not disposed only inside the retaining ring 140, but may cover both the upper and lower sides of the retaining ring 140. As a result, the contact area between the potting filler layer 160 and the stationary ring 140 is increased, and the binding force between the potting filler layer 160 and the stationary ring 140 can be increased.

The hollow fiber membrane module 100 according to an embodiment of the present invention includes a baffle 150 having a plurality of adhesive holes 151 through which the potting filler layer 160 can pass, And the baffle 150 can be increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

10 hollow fiber membrane
110 housing
120 partition plate
130 side cap
140 Retaining ring
150 Beef
151 Adhesion hole
153 second rectifying ball
154 separation plate fastening portion
155 first rectifying ball
156 body
157 Exhaust groove
158 Support plate
159 fluid branching area

Claims

A housing having a plurality of hollow fiber membranes disposed therein;
A side cap coupled to one side of the housing and having a fluid inlet and outlet through which fluids flow in and out;
A baffle that couples with the one end of the housing in the side cap and branches the flow of the fluid into or out of the side cap;
A potting filler layer filling the inside of the side cap and fixing the plurality of hollow fiber membranes; And
A fixed ring in contact with an upper end of the baffle and fixedly coupled to an inner circumferential surface of the side cap and having the potting filler layer positioned therein,
Wherein a plurality of partitions are formed on an inner circumferential surface of the stationary ring to form a groove between the plurality of partitions, at least one gas discharge hole is formed in the plurality of partitions,
A plurality of adhesive holes are formed on the upper side of the baffle, through which a part of the potting filler layer passes and are fixed
Wherein the baffle includes a support plate at the bottom of the baffle for contacting the end of the housing,
The support plate is formed with a housing fastening hole to be fastened to the housing,
And a discharge groove through which a part of the fluid can move is formed on the upper side of the support plate.

The method according to claim 1,
Wherein the plurality of adhesive holes are arranged in parallel along the upper periphery of the baffle.

The method according to claim 1,
In the baffle,
And a plurality of first flow holes disposed below the plurality of adhesive holes and through which the fluid introduced through the fluid outlet is passed.

The method of claim 3,
In the baffle,
And a fluid branching region disposed corresponding to the fluid inlet and adapted to move the fluid flowing through the fluid inlet and outlet along the periphery of the baffle.

5. The method of claim 4,
And the fluid branching region is disposed between the plurality of first flow holes.

The method of claim 3,
Wherein the cross section of the plurality of first flow holes is circular.

The method of claim 3,
In the baffle,
And a plurality of second flow holes are formed between the plurality of adhesive holes and the plurality of first flow holes.

8. The method of claim 7,
Wherein the cross section of the plurality of second flow holes is a rectangular shape.

8. The method of claim 7,
And a part of the potting filler layer penetrates a part of the second flow-regulating hole.

delete

The method according to claim 1,
Wherein the support plate is annular in shape.

12. The method of claim 11,
Wherein the support plate and the housing have the same diameter.

delete

The method according to claim 1,
Further comprising a separation plate located within the retaining ring and dividing the retaining ring interior into at least two regions.

16. The method of claim 15,
The separator plate
And at least two sub-plates crossing each other.

17. The method of claim 16,
Wherein the at least two sub-plates are integrally formed.

16. The method of claim 15,
Wherein the baffle includes a separating plate fastening portion which is fastened to one side of the separating plate on the baffle.

The method according to claim 1,
Wherein the fixing ring is made of an elastic material.

The method according to claim 1,
Wherein the housing is a tubular member.