WO2019168247A1 - Hollow fiber membrane - Google Patents

Hollow fiber membrane Download PDF

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Publication number
WO2019168247A1
WO2019168247A1 PCT/KR2018/010298 KR2018010298W WO2019168247A1 WO 2019168247 A1 WO2019168247 A1 WO 2019168247A1 KR 2018010298 W KR2018010298 W KR 2018010298W WO 2019168247 A1 WO2019168247 A1 WO 2019168247A1
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Prior art keywords
hollow
fiber membrane
hollow fiber
body portion
hollow portion
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PCT/KR2018/010298
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French (fr)
Korean (ko)
Inventor
장재영
김성호
에딘 함디파흐르
Original Assignee
주식회사 퓨어엔비텍
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Publication of WO2019168247A1 publication Critical patent/WO2019168247A1/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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Definitions

  • the present invention relates to a hollow fiber membrane.
  • the filtration membrane used for filtration and removal of contaminants or wastewater treatment device is classified according to the type of flat plate and thread-shaped hollow fiber membrane. It can be roughly divided into.
  • porous membranes such as ultrafiltration membranes and microfiltration membranes have been used in a wide range of fields such as removal of fine particles from ultrapure water, production of pyrogen-free water, concentration of enzymes, and water and sewage treatment.
  • hollow fiber membrane filtration methods are immersed in which hollow fiber membranes are immersed in treated water and impurities are removed from the treated water.
  • porous hollow fiber membranes have a high membrane filling density per unit volume, which makes the processing apparatus compact and are widely used.
  • the membrane for water treatment using hollow fiber is disclosed in Korean Patent No. 10-0340450.
  • the present invention is to solve the above problems, and an object of the present invention is to provide a hollow fiber membrane having high filtration efficiency by using a protrusion and a plurality of hollow portions inside the hollow fiber membrane.
  • the hollow fiber membrane according to the present invention is the body portion for filtering the raw water, the hollow portion extending in the longitudinal direction of the body portion inside the body portion hollow, and the inner surface of the body portion Coupled to and protrudes into the hollow portion, it may include a protrusion for filtering the raw water.
  • the protrusion may extend in the longitudinal direction of the body portion in the form of a spiral to generate turbulence in the fluid flowing through the hollow portion.
  • a plurality of spiral protrusions may be formed, and the plurality of protrusions may extend in a length direction of the body portion at a predetermined interval from each other.
  • the protrusion may be integrally formed with the body portion.
  • the hollow portion is disposed in a plurality of spaced apart from each other around the body portion, the surface of the body portion corresponding to the position of the plurality of the hollow portion is formed in the protruding convex portion and the portion between the adjacent hollow portion
  • the recess may be formed.
  • the hollow part has a cylindrical shape or a polygonal shape
  • the surface of the body part has a protruding convex part having a surface corresponding to the cylindrical shape of the hollow part or the polygonal shape of the hollow part at a portion where the hollow part is disposed and the neighboring part is formed.
  • the recessed portion may be formed in a portion between the hollow portions.
  • the protrusion may serve to prevent impurities that may be attached to the inner surface of the body part, thereby increasing the filtration efficiency of the hollow fiber membrane.
  • the convex portion and the concave portion of the hollow fiber membrane are regularly arranged so that the membrane fouling prevention effect is large, so that raw water can be efficiently filtered.
  • the hollow part is not located at the center of the hollow fiber membrane, the vertical uprightness can be improved, thereby preventing falling or single yarns from being entangled or folded individually, thereby reducing the cost of increasing the filtration efficiency and maintenance.
  • the surface of the hollow fiber membrane is formed in a pattern of a convex portion and a concave portion that are not circular, so that the filling density and surface area can be increased compared to the cylindrical shape to improve the filtration efficiency and permeation performance, and also to prevent the membrane fouling effect. have.
  • the distance between the hollow portion and the convex portion is regularly maintained to have uniform permeability and uniform filterability compared to the conventional hollow fiber membrane, and high bending strength and mechanical strength.
  • FIG. 1 is a perspective view of an embodiment of a hollow fiber membrane according to the present invention.
  • FIG. 2 is a cross-sectional view taken along the direction A and B of FIG. 1.
  • FIG. 3 is a cross-sectional view of another embodiment of the hollow fiber membrane according to the present invention.
  • FIG. 4 is a cross-sectional view according to the number of protrusions of the hollow fiber membrane comparative embodiments according to the present invention.
  • FIG. 5 is a longitudinal cross-sectional view of the velocity streamlines of the hollow fiber membrane hollow portion according to the comparative embodiments of FIG. 4.
  • FIG. 6 is a cross-sectional view of a velocity streamline in the middle portion of the hollow fiber membrane according to the comparative embodiments of FIG. 4.
  • FIG. 7 is a graph of shear force at the inlet portion of the hollow fiber membrane according to the comparative embodiments of FIG. 4.
  • FIG. 8 is a graph of shear force on the surface of a hollow fiber membrane according to the comparative examples of FIG. 4.
  • FIG. 9 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
  • FIG. 10 is a cross-sectional view taken along the direction C of FIG. 9.
  • FIG. 11 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
  • FIG. 12 is a cross-sectional view taken along the direction D of FIG. 11.
  • Figure 13 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
  • FIG. 14 is a cross-sectional view taken along the direction E of FIG. 13.
  • FIG. 15 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
  • FIG. 16 is a cross-sectional view of the F direction in FIG. 15.
  • first and second may be used to describe various components separately, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • FIG. 1 is a perspective view of one embodiment of the hollow fiber membrane 500 according to the present invention
  • Figure 2 is a cross-sectional view of the A and B direction of Figure 1
  • Figure 3 is a cross-sectional view of another embodiment of the hollow fiber membrane 500 according to the present invention
  • Figure 4 is a cross-sectional view according to the number of protrusions 300 of the hollow fiber membrane 500 comparative embodiments according to the present invention
  • Figure 5 is a speed of the hollow portion 200 of the hollow fiber membrane 500 according to the comparative embodiments of FIG.
  • Figure 6 is a longitudinal cross-sectional view of the streamlines
  • Figure 6 is a cross-sectional view of the velocity streamline of the middle portion of the hollow fiber membrane 500 according to the comparative embodiments of Figure 4
  • Figure 7 is a comparative example of the Shear force graph of the inlet portion of the hollow fiber membrane 500
  • Figure 8 is a shear force graph of the surface 120 of the hollow fiber membrane 500 according to the comparative embodiments of FIG.
  • Hollow fiber membrane 500 may include a body portion 100, a hollow portion 200, a protrusion 300, and the like.
  • Hollow fiber membrane 500 is the body portion 100 for filtering raw water, the hollow portion 200 extending in the longitudinal direction of the body portion 100 inside the body portion 100 and formed in a hollow, and the body portion 100 It is coupled to the inner surface 110 and protrudes into the hollow portion 200, and includes a protrusion 300 for filtering raw water, the protrusion portion 300 extends in the longitudinal direction of the body portion 100 in the form of a spiral hollow portion Turbulence may be generated in the fluid flowing through 200.
  • a plurality of spiral protrusions 300 are formed, the plurality of protrusions 300 are formed extending in the longitudinal direction of the body portion 100 at a predetermined interval from each other, the protrusion portion 300 is the body portion 100 It can be formed integrally with.
  • the body part 100 forms a main body of the hollow fiber membrane 500 and may serve to filter raw water.
  • the hollow fiber membrane 500 may be installed in the separation membrane tank of the water treatment facility to serve to filter raw water including waste water.
  • the hollow part 200 is a hollow positioned in the longitudinal direction of the body part 100 in the body part 100 and may serve as a passage through which fluid flows.
  • the protrusion 300 is coupled to the inner surface 110 of the body part 100 to protrude toward the hollow part 200 and may serve to generate turbulence in the fluid flowing through the hollow part 200.
  • the inner surface 110 of the body portion 100 is located inside the body portion 100 to form a hollow portion 200 by the fluid flowing in contact with the surface It means.
  • Protruding portion 300 generates turbulence in the fluid flowing through the hollow portion 200, thereby reducing impurities that may be attached to the inner surface 110 of the body portion 100 to increase the filtration efficiency of the hollow fiber membrane 500. can do.
  • the protrusion 300 may be formed extending in the longitudinal direction of the body portion 100 in the form of a spiral.
  • a plurality of spiral protrusions 300 may be formed on the inner surface 110 of the hollow fiber membrane 500, and the plurality of protrusions 300 may be spaced apart from each other at a predetermined distance from each other in the body portion 100. It may extend in the longitudinal direction.
  • the plurality of protrusions 300 may extend in the longitudinal direction of the body portion 100 without crossing each other.
  • the protrusion 300 may be integrally formed with the body portion 100.
  • the protrusion 300 is made of the same material as the body portion 100 may perform a filtration function to filter the raw water, such as the body portion 100.
  • FIG. 9 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention
  • Figure 10 is a cross-sectional view of the C direction of Figure 9
  • Figure 11 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention
  • 12 is a cross-sectional view in the D direction of FIG. 11
  • FIG. 13 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention
  • FIG. 14 is a cross-sectional view in the E direction of FIG.
  • Fig. 16 is a perspective view of still another embodiment of the hollow fiber membrane 500 according to the present invention.
  • the hollow part 200 is arranged in a plurality of spaced apart from each other around the body portion 100, the surface 120 of the body portion 100 is corresponding to the position of the plurality of hollow portion 200, the hollow portion 200 A protruding convex portion 130 may be formed at a portion to be positioned, and a concave portion 140 may be formed at a portion between neighboring hollow portions 200.
  • the hollow portion 200 is a cylindrical shape 210 or a polygonal pillar shape 220
  • the surface 120 of the body portion 100 is a cylinder of the hollow portion 200 in the portion where the hollow portion 200 is disposed
  • a protruding convex portion 130 including a surface corresponding to the polygonal shape 220 of the shape 210 or the hollow portion 200 is formed, and the recessed portion 140 is recessed in a portion between the adjacent hollow portions 200. ) May be formed.
  • the hollow part 200 may be located in plural numbers inside the body part 100. 9 to 16, for example, when a plurality of hollow portions 200 are formed, one or more protrusions 300 may be formed in each hollow portion 200, and one hollow portion may be formed. An equal number of protrusions 300 or a different number of protrusions 300 may be formed in the plurality of hollow portions 200 existing in the desert 500.
  • the hollow part 200 may be positioned around the body part 100 and spaced apart from each other.
  • the hollow parts 200 are not positioned at the center of the hollow fiber membrane 500, thereby increasing the uprightness and structural stability of the hollow fiber membrane 500.
  • the hollow portion 200 positioned at the center of the body portion 100 has a small bar contributing to filtration efficiency, so that the hollow portion 200 does not have the hollow fiber membrane 500. It may be preferable in terms of its structural stability.
  • the convex portion 130 is protruded to a portion where the hollow portion 200 is positioned corresponding to the positions of the plurality of hollow portions 200, and may be formed by protruding the surface 120 of the body portion 100. .
  • the uprightness may be improved through an enlarged cross-sectional area, and the hollow part 200 and the convex part 130 may be improved.
  • the distance between them is regularly maintained to have a uniform permeability and uniform filterability compared to the conventional hollow fiber membrane 500, high bending strength and mechanical strength.
  • the recess 140 is recessed and positioned between the neighboring hollow parts 200 corresponding to the positions of the plurality of hollow parts 200, and may be formed by recessing the surface 120 of the body part 100.
  • the cross section of the surface 120 of the hollow fiber membrane 500 is formed in the shape of a pattern in which the convex portion 130 and the concave portion 140 are not circular, so that the filling density and the surface area are increased compared to the cylindrical form, thereby increasing the filtration efficiency and permeation.
  • the performance can be improved, and the membrane fouling prevention effect can also be improved.
  • the hollow part 200 may have a cylindrical shape 210 or a polygonal shape 220.
  • the surface 120 of the body portion 100 includes a curved surface when the hollow portion 200 has a cylindrical shape 210 corresponding to the shape of the hollow portion 200, and the hollow portion 200 has a polygonal pillar.
  • Form 220 may include multiple sides.
  • the shape of the surface 120 of the body part 100 may include a curved or polygonal shape regardless of the shape of the hollow part 200.
  • FIGS. 9 to 16 show that the hollow part 200 has five pieces (a) and six pieces (b), and FIG. 9 or FIG. 10 shows the hollow part 200 having a cylindrical shape 210 and a hollow fiber membrane.
  • the cross section of the surface 120 is in the form of a curved surface
  • FIG. 11 or FIG. 12 shows that the hollow portion 200 has a polygonal pillar shape 220 and the hollow fiber membrane 500 has a cross section of the surface 120 in a polygonal shape
  • 13 or 14 is a case in which the hollow portion 200 is a polygonal pillar shape 220 and the cross section of the surface 120 of the hollow fiber membrane 500 is a curved shape
  • FIG. 15 or 16 is a hollow portion
  • 200 is an exemplary view in the case where the cylindrical shape 210 and the cross section of the surface 120 of the hollow fiber membrane 500 is a polygonal shape.
  • the protrusion part 300 is formed toward the hollow part 200 formed in the hollow fiber membrane 500, thereby generating turbulence in the fluid flowing through the hollow part 200, thereby making the inner surface of the body part 100 ( It may be possible to improve the filtration of the hollow fiber membrane 500 by preventing impurities that may be attached to the 110.
  • the convex portion 130 and the concave portion 140 of the hollow fiber membrane 500 are regularly arranged so that the membrane fouling prevention effect is large. Raw water can be filtered efficiently.
  • the surface 120 of the hollow fiber membrane 500 is formed in a pattern pattern in which the convex portion 130 and the concave portion 140 are not circular, so that the filling density and the surface area are increased compared to the cylindrical form 210, thereby increasing the filtration efficiency and Permeation performance can be improved, and membrane fouling prevention effect can also be improved.
  • the distance between the hollow portion 200 and the convex portion 130 is regularly maintained to have a uniform permeability and uniform filterability compared to the conventional hollow fiber membrane 500, high bending strength and mechanical strength.
  • body portion 110 the inner surface of the body portion
  • the present invention can provide a hollow fiber membrane having high filtration efficiency by using a protrusion and a plurality of hollow portions inside the hollow fiber membrane.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a hollow fiber membrane, which can comprise: a body part for filtering raw water; a hollow part extended in the lengthwise direction of the body part inside the body part, and formed to be hollow; and a protruding part coupled to the inner surface of the body part so as to protrude toward the hollow part, and filtering the raw water.

Description

중공사막Hollow fiber membrane
본 발명은 중공사막에 관한 것이다.The present invention relates to a hollow fiber membrane.
공업이 발달하게 된 현대 사회에 접어들면서 폐수 및 오수와 같은 오염수에 관한 문제가 점차 증대되고 있다. 특히, 대량의 오염수가 발생되는 공장에서는 환경 문제의 대두로 인해 오염수의 배출 규제가 강화되고 있어 오염수를 자체적으로 처리하여 정화된 물을 배출할 수 있는 기술에 대한 수요가 증가하고 있다. 가정에서도 상수도의 노후화 및 수돗물에 대한 불안감으로 가정에서 소비하는 물에 대한 관심이 증대되고 있어 수돗물을 정수하기 위해 필요한 가정용 정수기에 대한 수요 역시 증가하고 있다.As the industry enters modern society, problems with contaminated water such as wastewater and sewage are gradually increasing. In particular, in factories where a large amount of polluted water is generated, regulations on the discharge of polluted water are being strengthened due to the rise of environmental problems, and the demand for a technology capable of discharging the purified water by treating the polluted water itself is increasing. At home, the aging of tap water and anxiety about tap water are increasing interest in water consumed at home, and the demand for household water purifiers necessary to purify tap water is also increasing.
일반적으로 오염물질을 내포한 원수를 처리하여 정수하는 장치에 있어서 오염물질을 여과하여 제거하기 위한 정수장치나 오폐수 처리장치에 이용되는 여과막을 막의 형태에 따라 분류하면 평판 형태의 평막과 실 형태의 중공사막으로 대별될 수 있다. 최근, 한외 여과막, 정밀 여과막 등의 다공막은 초순수로부터의 미립자 제거, 파이로젠 무함유수의 제조, 효소의 농축, 상하수 처리 등 폭넓은 분야에서 이용되고 있다. 상하수도 처리나 산업 배수 처리에 있어서, 피처리수 중에 중공사막을 침지하고 피처리수로부터 불순물을 분리 제거하는 중공사막 여과법이 보급되어 있다. 특히 다공성 중공사막은, 단위체적당 막충전 밀도가 높아 처리 장치를 컴팩트화할 수 있어 널리 이용되고 있다. 중공사를 이용한 수처리용 분리막에 대해 등록특허 제10-0340450호에 개시되어 있다. Generally, in the device for treating and purifying raw water containing contaminants, the filtration membrane used for filtration and removal of contaminants or wastewater treatment device is classified according to the type of flat plate and thread-shaped hollow fiber membrane. It can be roughly divided into. In recent years, porous membranes such as ultrafiltration membranes and microfiltration membranes have been used in a wide range of fields such as removal of fine particles from ultrapure water, production of pyrogen-free water, concentration of enzymes, and water and sewage treatment. In water and sewage treatment and industrial wastewater treatment, hollow fiber membrane filtration methods are immersed in which hollow fiber membranes are immersed in treated water and impurities are removed from the treated water. In particular, porous hollow fiber membranes have a high membrane filling density per unit volume, which makes the processing apparatus compact and are widely used. The membrane for water treatment using hollow fiber is disclosed in Korean Patent No. 10-0340450.
그러나 중공사막 여과법은 장시간의 운전에 의해서 중공사막에 피처리수 중의 현탁 물질 및 유기 물질 등의 부착층이 발생되어, 중공사막에 블로킹이나 고형물에 의한 유로 폐색(파울링)이 발생하는 문제가 있다. 파울링은 막간 압력의 상승이나 여과 유속의 저하 등을 초래하여, 수처리 시스템의 전체적인 운전 효율에 악영향을 미친다.However, in the hollow fiber membrane filtration method, there is a problem that adhesion layers, such as suspended substances and organic substances in the water to be treated, are generated in the hollow fiber membrane by prolonged operation, and a flow path blockage due to blocking or solids occurs in the hollow fiber membrane. . Fouling causes an increase in intermembrane pressure, a decrease in filtration flow rate, and the like, which adversely affects the overall operating efficiency of the water treatment system.
본 발명은 상기와 같은 문제를 해결하기 위한 것으로, 중공사막 내부의 돌출부와 복수 개의 중공부를 이용하여 여과 효율이 높은 중공사막을 제공하는 것을 목적으로 한다.The present invention is to solve the above problems, and an object of the present invention is to provide a hollow fiber membrane having high filtration efficiency by using a protrusion and a plurality of hollow portions inside the hollow fiber membrane.
본 발명이 이루고자 하는 기술적 과제는 이상에서 언급한 기술적 과제로 제한되지 않으며 언급되지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. will be.
본 발명은 상기의 목적을 달성하기 위하여, 본 발명에 따른 중공사막은 원수를 여과하는 몸체부, 상기 몸체부 내부에 상기 몸체부의 길이 방향으로 연장되며 중공으로 형성된 중공부, 및 상기 몸체부의 내부면에 결합되어 상기 중공부로 돌출되며, 상기 원수를 여과하는 돌출부를 포함할 수 있다.The present invention, in order to achieve the above object, the hollow fiber membrane according to the present invention is the body portion for filtering the raw water, the hollow portion extending in the longitudinal direction of the body portion inside the body portion hollow, and the inner surface of the body portion Coupled to and protrudes into the hollow portion, it may include a protrusion for filtering the raw water.
상기 돌출부는 나선 형태로 상기 몸체부의 길이 방향으로 연장되어 상기 중공부를 흐르는 유체에 난류를 발생시킬 수 있다.The protrusion may extend in the longitudinal direction of the body portion in the form of a spiral to generate turbulence in the fluid flowing through the hollow portion.
나선 형태의 상기 돌출부는 복수 개가 형성되며, 복수 개의 상기 돌출부는 서로 소정의 간격을 두고 상기 몸체부의 길이 방향으로 연장되어 형성될 수 있다.A plurality of spiral protrusions may be formed, and the plurality of protrusions may extend in a length direction of the body portion at a predetermined interval from each other.
상기 돌출부는 상기 몸체부와 일체로 형성될 수 있다.The protrusion may be integrally formed with the body portion.
상기 중공부는 상기 몸체부 둘레에 복수 개가 서로 이격되어 배치되며, 상기 몸체부의 표면은 복수 개의 상기 중공부의 위치에 대응하여 상기 중공부가 위치되는 부분에는 돌출된 볼록부가 형성되고 이웃하는 상기 중공부 사이 부분에는 오목부가 형성될 수 있다.The hollow portion is disposed in a plurality of spaced apart from each other around the body portion, the surface of the body portion corresponding to the position of the plurality of the hollow portion is formed in the protruding convex portion and the portion between the adjacent hollow portion The recess may be formed.
상기 중공부는 원기둥 형태 또는 다각기둥 형태이며, 상기 몸체부의 표면은 상기 중공부가 배치되는 부분에는 상기 중공부의 원기둥 형태 또는 상기 중공부의 다각기둥 형태에 대응하는 면을 포함하는 돌출된 상기 볼록부가 형성되고 이웃하는 상기 중공부 사이 부분에는 함몰된 상기 오목부가 형성될 수 있다.The hollow part has a cylindrical shape or a polygonal shape, and the surface of the body part has a protruding convex part having a surface corresponding to the cylindrical shape of the hollow part or the polygonal shape of the hollow part at a portion where the hollow part is disposed and the neighboring part is formed. The recessed portion may be formed in a portion between the hollow portions.
돌출부는 중공부를 흐르는 유체에 난류를 발생시킴으로써, 몸체부의 내부면에 부착될 수 있는 불순물을 방지하여 중공사막의 여과 효율을 높이는 역할을 할 수 있다.By generating turbulence in the fluid flowing through the hollow part, the protrusion may serve to prevent impurities that may be attached to the inner surface of the body part, thereby increasing the filtration efficiency of the hollow fiber membrane.
중공사막 둘레에 복수 개의 중공부를 갖는 중공사막은 중공사막의 볼록부와 오목부가 규칙적으로 배열되어 막오염 방지 효과가 커서 원수를 효율적으로 여과할 수 있다. In the hollow fiber membrane having a plurality of hollow portions around the hollow fiber membrane, the convex portion and the concave portion of the hollow fiber membrane are regularly arranged so that the membrane fouling prevention effect is large, so that raw water can be efficiently filtered.
중공부는 중공사막의 중심부에는 위치되지 않아 수직한 직립도가 향상될 수 있어 서로 얽히거나 개별적으로 접히면서 탈락 또는 단사되는 것을 방지하여 여과 효율의 상승 및 유지 보수에 소요되는 비용을 절감할 수 있다.Since the hollow part is not located at the center of the hollow fiber membrane, the vertical uprightness can be improved, thereby preventing falling or single yarns from being entangled or folded individually, thereby reducing the cost of increasing the filtration efficiency and maintenance.
중공사막의 표면이 원형이 아닌 볼록부와 오목부가 반복된 패턴 형태로 형성되어 원기둥 형태에 비하여 충진 밀도 및 표면적이 증가하여 여과 효율 및 투과 성능을 향상시킬 수 있고, 막오염 방지 효과도 개선될 수 있다.The surface of the hollow fiber membrane is formed in a pattern of a convex portion and a concave portion that are not circular, so that the filling density and surface area can be increased compared to the cylindrical shape to improve the filtration efficiency and permeation performance, and also to prevent the membrane fouling effect. have.
중공부와 볼록부 사이의 거리가 규칙적으로 일정하게 유지되어 종래 중공사막에 비해 균일한 투과성 및 균일한 여과성을 가지며, 휨 강도 및 기계적 강도가 높다.The distance between the hollow portion and the convex portion is regularly maintained to have uniform permeability and uniform filterability compared to the conventional hollow fiber membrane, and high bending strength and mechanical strength.
도 1은 본 발명에 따른 중공사막 일실시예의 사시도이다.1 is a perspective view of an embodiment of a hollow fiber membrane according to the present invention.
도 2는 도 1의 A 및 B 방향 단면도이다.2 is a cross-sectional view taken along the direction A and B of FIG. 1.
도 3은 본 발명에 따른 중공사막 다른 실시예의 단면도이다.3 is a cross-sectional view of another embodiment of the hollow fiber membrane according to the present invention.
도 4는 본 발명에 따른 중공사막 비교실시예들의 돌출부의 수에 따른 단면도이다.4 is a cross-sectional view according to the number of protrusions of the hollow fiber membrane comparative embodiments according to the present invention.
도 5는 도 4의 비교실시예들에 따른 중공사막 중공부의 속도 스트림라인(streamlines)의 종단면도 그래프이다.5 is a longitudinal cross-sectional view of the velocity streamlines of the hollow fiber membrane hollow portion according to the comparative embodiments of FIG. 4.
도 6은 도 4의 비교실시예들에 따른 중공사막 중간부분의 속도 스트림라인의 횡단면도 그래프이다.6 is a cross-sectional view of a velocity streamline in the middle portion of the hollow fiber membrane according to the comparative embodiments of FIG. 4.
도 7은 도 4의 비교실시예들에 따른 중공사막 입구부분의 전단력 그래프이다.7 is a graph of shear force at the inlet portion of the hollow fiber membrane according to the comparative embodiments of FIG. 4.
도 8은 도 4의 비교실시예들에 따른 중공사막 표면의 전단력 그래프이다.8 is a graph of shear force on the surface of a hollow fiber membrane according to the comparative examples of FIG. 4.
도 9는 본 발명에 따른 중공사막의 또 다른 실시예의 사시도이다.9 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
도 10은 도 9의 C 방향의 단면도이다.10 is a cross-sectional view taken along the direction C of FIG. 9.
도 11은 본 발명에 따른 중공사막의 또 다른 실시예의 사시도이다.11 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
도 12는 도 11의 D 방향의 단면도이다.12 is a cross-sectional view taken along the direction D of FIG. 11.
도 13은 본 발명에 따른 중공사막의 또 다른 실시예의 사시도이다.Figure 13 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
도 14는 도 13의 E 방향의 단면도이다.14 is a cross-sectional view taken along the direction E of FIG. 13.
도 15는 본 발명에 따른 중공사막의 또 다른 실시예의 사시도이다.15 is a perspective view of another embodiment of a hollow fiber membrane according to the present invention.
도 16은 도 15의 F 방향의 단면도이다.16 is a cross-sectional view of the F direction in FIG. 15.
이하 설명되는 본 발명은 다양한 변환을 가할 수 있고, 여러 가지 실시 예를 가질 수 있는 바, 특정 실시 예들을 도면에 예시하고 상세한 설명에서 상세하게 설명하고자 한다.The present invention described below may apply various transformations and may have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description.
그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변환, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.
본 출원에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, "포함하다" 또는 "가지다" 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
또한 제1, 제2 등의 용어는 다양한 구성요소들을 구분하여 설명하기 위해 사용될 수 있지만, 상기 구성 요소들은 상기 용어들에 의해 한정되어서는 안 된다. 상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다.In addition, terms such as first and second may be used to describe various components separately, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
이하에서는, 본 발명의 일실시예에 따른 중공사막(500)에 대하여 도면을 참조하여 상세히 설명한다.Hereinafter, the hollow fiber membrane 500 according to an embodiment of the present invention will be described in detail with reference to the drawings.
도 1은 본 발명에 따른 중공사막(500) 일실시예의 사시도이고, 도 2는 도 1의 A 및 B 방향 단면도이며, 도 3은 본 발명에 따른 중공사막(500) 다른 실시예의 단면도이고, 도 4는 본 발명에 따른 중공사막(500) 비교실시예들의 돌출부(300)의 수에 따른 단면도이며, 도 5는 도 4의 비교실시예들에 따른 중공사막(500) 중공부(200)의 속도 스트림라인(streamlines)의 종단면도 그래프이고, 도 6은 도 4의 비교실시예들에 따른 중공사막(500) 중간부분의 속도 스트림라인의 횡단면도 그래프이며, 도 7은 도 4의 비교실시예들에 따른 중공사막(500) 입구부분의 전단력 그래프이고, 도 8은 도 4의 비교실시예들에 따른 중공사막(500) 표면(120)의 전단력 그래프이다.1 is a perspective view of one embodiment of the hollow fiber membrane 500 according to the present invention, Figure 2 is a cross-sectional view of the A and B direction of Figure 1, Figure 3 is a cross-sectional view of another embodiment of the hollow fiber membrane 500 according to the present invention, Figure 4 is a cross-sectional view according to the number of protrusions 300 of the hollow fiber membrane 500 comparative embodiments according to the present invention, Figure 5 is a speed of the hollow portion 200 of the hollow fiber membrane 500 according to the comparative embodiments of FIG. Figure 6 is a longitudinal cross-sectional view of the streamlines, Figure 6 is a cross-sectional view of the velocity streamline of the middle portion of the hollow fiber membrane 500 according to the comparative embodiments of Figure 4, Figure 7 is a comparative example of the Shear force graph of the inlet portion of the hollow fiber membrane 500, Figure 8 is a shear force graph of the surface 120 of the hollow fiber membrane 500 according to the comparative embodiments of FIG.
본 발명의 일례에 따른 중공사막(hollow fiber membrane)(500)은 몸체부(100), 중공부(200), 돌출부(300) 등을 포함할 수 있다. Hollow fiber membrane 500 according to an example of the present invention may include a body portion 100, a hollow portion 200, a protrusion 300, and the like.
중공사막(500)은 원수를 여과하는 몸체부(100), 몸체부(100) 내부에 몸체부(100)의 길이 방향으로 연장되며 중공으로 형성된 중공부(200), 및 몸체부(100)의 내부면(110)에 결합되어 중공부(200)로 돌출되며, 원수를 여과하는 돌출부(300)를 포함하며, 돌출부(300)는 나선 형태로 몸체부(100)의 길이 방향으로 연장되어 중공부(200)를 흐르는 유체에 난류를 발생시킬 수 있다. 나선 형태의 돌출부(300)는 복수 개가 형성되며, 복수 개의 돌출부(300)는 서로 소정의 간격을 두고 몸체부(100)의 길이 방향으로 연장되어 형성되며, 돌출부(300)는 몸체부(100)와 일체로 형성될 수 있다. Hollow fiber membrane 500 is the body portion 100 for filtering raw water, the hollow portion 200 extending in the longitudinal direction of the body portion 100 inside the body portion 100 and formed in a hollow, and the body portion 100 It is coupled to the inner surface 110 and protrudes into the hollow portion 200, and includes a protrusion 300 for filtering raw water, the protrusion portion 300 extends in the longitudinal direction of the body portion 100 in the form of a spiral hollow portion Turbulence may be generated in the fluid flowing through 200. A plurality of spiral protrusions 300 are formed, the plurality of protrusions 300 are formed extending in the longitudinal direction of the body portion 100 at a predetermined interval from each other, the protrusion portion 300 is the body portion 100 It can be formed integrally with.
몸체부(100)는 중공사막(500)의 본체를 이루는 것으로, 원수를 여과하는 역할을 할 수 있다. 일례로, 중공사막(500)은 수처리시설의 분리막조에 설치되어 오폐수를 포함한 원수를 여과하는 역할을 할 수 있다.The body part 100 forms a main body of the hollow fiber membrane 500 and may serve to filter raw water. For example, the hollow fiber membrane 500 may be installed in the separation membrane tank of the water treatment facility to serve to filter raw water including waste water.
중공부(200)는 몸체부(100) 내부에 몸체부(100)의 길이 방향으로 연장되어 위치되는 중공으로, 유체가 흐르는 통로 역할을 할 수 있다.The hollow part 200 is a hollow positioned in the longitudinal direction of the body part 100 in the body part 100 and may serve as a passage through which fluid flows.
돌출부(300)는 몸체부(100)의 내부면(110)에 결합되어 중공부(200)를 향해 돌출되는 것으로, 중공부(200)를 통해 흐르는 유체에 난류를 발생시키는 역할을 할 수 있다. 일례로 도 1 내지 도 3에서 알 수 있는 바와 같이, 몸체부(100)의 내부면(110)은 몸체부(100)의 내부에 위치하여 중공부(200)를 형성함으로써 유체가 접촉되어 흐르는 면을 뜻한다. 돌출부(300)는 중공부(200)를 흐르는 유체에 난류를 발생시킴으로써, 몸체부(100)의 내부면(110)에 부착될 수 있는 불순물을 감소시켜 중공사막(500)의 여과 효율을 높이는 역할을 할 수 있다.The protrusion 300 is coupled to the inner surface 110 of the body part 100 to protrude toward the hollow part 200 and may serve to generate turbulence in the fluid flowing through the hollow part 200. As can be seen in Figures 1 to 3, the inner surface 110 of the body portion 100 is located inside the body portion 100 to form a hollow portion 200 by the fluid flowing in contact with the surface It means. Protruding portion 300 generates turbulence in the fluid flowing through the hollow portion 200, thereby reducing impurities that may be attached to the inner surface 110 of the body portion 100 to increase the filtration efficiency of the hollow fiber membrane 500. can do.
일례로 도 1 내지 도 4의 예시에서 알 수 있는 바와 같이, 돌출부(300)는 나선 형태로 몸체부(100)의 길이 방향으로 연장되어 형성될 수 있다. 일례로, 나선 형태의 돌출부(300)는 중공사막(500) 내부면(110)에 복수 개가 형성될 수 있으며, 복수 개의 돌출부(300)는 서로 소정의 간격을 두고 이격되어 몸체부(100)의 길이 방향으로 연장될 수 있다. 도 3 또는 도 4의 예시에서 알 수 있는 바와 같이, 복수 개의 돌출부(300)는 서로 교차되지 않고 몸체부(100)의 길이 방향으로 연장되어 형성될 수 있다. As can be seen in the example of Figures 1 to 4, for example, the protrusion 300 may be formed extending in the longitudinal direction of the body portion 100 in the form of a spiral. For example, a plurality of spiral protrusions 300 may be formed on the inner surface 110 of the hollow fiber membrane 500, and the plurality of protrusions 300 may be spaced apart from each other at a predetermined distance from each other in the body portion 100. It may extend in the longitudinal direction. As can be seen in the example of FIG. 3 or FIG. 4, the plurality of protrusions 300 may extend in the longitudinal direction of the body portion 100 without crossing each other.
도 5 내지 도 8의 예시에서 알 수 있는 바와 같이, 돌출부(300)의 수가 증가함에 따라 중공부(200)를 흐르는 유체에 난류가 증가하고 전단력(shear force)이 증가함을 알 수 있다.As can be seen in the example of FIGS. 5 to 8, it can be seen that turbulence increases and shear force increases in the fluid flowing through the hollow part 200 as the number of the protrusions 300 increases.
일례로, 돌출부(300)는 몸체부(100)와 일체로 형성될 수 있다. 또한 일례로, 돌출부(300)는 몸체부(100)와 같은 물질로 구성되어 몸체부(100)와 같이 원수를 여과하는 여과작용을 할 수 있다. For example, the protrusion 300 may be integrally formed with the body portion 100. In addition, as an example, the protrusion 300 is made of the same material as the body portion 100 may perform a filtration function to filter the raw water, such as the body portion 100.
도 9는 본 발명에 따른 중공사막(500)의 또 다른 실시예의 사시도이고, 도 10은 도 9의 C 방향의 단면도이며, 도 11은 본 발명에 따른 중공사막(500)의 또 다른 실시예의 사시도이고, 도 12는 도 11의 D 방향의 단면도이며, 도 13은 본 발명에 따른 중공사막(500)의 또 다른 실시예의 사시도이고, 도 14는 도 13의 E 방향의 단면도이며, 도 15는 본 발명에 따른 중공사막(500)의 또 다른 실시예의 사시도이고, 도 16은 도 15의 F 방향의 단면도이다.9 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention, Figure 10 is a cross-sectional view of the C direction of Figure 9, Figure 11 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention 12 is a cross-sectional view in the D direction of FIG. 11, FIG. 13 is a perspective view of another embodiment of the hollow fiber membrane 500 according to the present invention, FIG. 14 is a cross-sectional view in the E direction of FIG. Fig. 16 is a perspective view of still another embodiment of the hollow fiber membrane 500 according to the present invention.
중공부(200)는 몸체부(100) 둘레에 복수 개가 서로 이격되어 배치되며, 몸체부(100)의 표면(120)은 복수 개의 중공부(200)의 위치에 대응하여 중공부(200)가 위치되는 부분에는 돌출된 볼록부(130)가 형성되고 이웃하는 중공부(200) 사이 부분에는 오목부(140)가 형성될 수 있다. 또한, 중공부(200)는 원기둥 형태(210) 또는 다각기둥 형태(220)이며, 몸체부(100)의 표면(120)은 중공부(200)가 배치되는 부분에는 중공부(200)의 원기둥 형태(210) 또는 중공부(200)의 다각기둥 형태(220)에 대응하는 면을 포함하는 돌출된 볼록부(130)가 형성되고 이웃하는 중공부(200) 사이 부분에는 함몰된 오목부(140)가 형성될 수 있다.The hollow part 200 is arranged in a plurality of spaced apart from each other around the body portion 100, the surface 120 of the body portion 100 is corresponding to the position of the plurality of hollow portion 200, the hollow portion 200 A protruding convex portion 130 may be formed at a portion to be positioned, and a concave portion 140 may be formed at a portion between neighboring hollow portions 200. In addition, the hollow portion 200 is a cylindrical shape 210 or a polygonal pillar shape 220, the surface 120 of the body portion 100 is a cylinder of the hollow portion 200 in the portion where the hollow portion 200 is disposed A protruding convex portion 130 including a surface corresponding to the polygonal shape 220 of the shape 210 or the hollow portion 200 is formed, and the recessed portion 140 is recessed in a portion between the adjacent hollow portions 200. ) May be formed.
중공부(200)는 몸체부(100) 내부에 복수 개가 위치될 수 있다. 일례로 도 9 내지 도 16의 예시에서 알 수 있는 바와 같이, 중공부(200)가 복수 개 형성되는 경우 각각의 중공부(200)에 하나 이상의 돌출부(300)가 형성될 수 있으며, 하나의 중공사막(500)에 존재하는 복수 개의 중공부(200)에 동수의 돌출부(300) 또는 서로 다른 수의 돌출부(300)가 형성될 수 있다.The hollow part 200 may be located in plural numbers inside the body part 100. 9 to 16, for example, when a plurality of hollow portions 200 are formed, one or more protrusions 300 may be formed in each hollow portion 200, and one hollow portion may be formed. An equal number of protrusions 300 or a different number of protrusions 300 may be formed in the plurality of hollow portions 200 existing in the desert 500.
일례로 도 9 내지 도 16의 예시에서 알 수 있는 바와 같이, 중공부(200)는 몸체부(100) 둘레에 복수 개가 서로 이격되어 위치될 수 있다. 일례로, 복수 개의 중공부(200)가 형성되는 경우 중공부(200)는 중공사막(500)의 중심에는 위치되지 않아 중공사막(500)의 직립도와 구조적 안정성을 높이는 효과가 있다. 일례로, 복수 개의 중공부(200)가 형성되는 경우 몸체부(100)의 중심에 위치되는 중공부(200)는 여과 효율에 기여하는 바가 작아 중공부(200)가 없는 것이 중공사막(500)의 구조적 안정성 측면에서 바람직할 수 있다.For example, as can be seen in the example of FIGS. 9 to 16, the hollow part 200 may be positioned around the body part 100 and spaced apart from each other. For example, when the plurality of hollow parts 200 are formed, the hollow parts 200 are not positioned at the center of the hollow fiber membrane 500, thereby increasing the uprightness and structural stability of the hollow fiber membrane 500. For example, when the plurality of hollow portions 200 are formed, the hollow portion 200 positioned at the center of the body portion 100 has a small bar contributing to filtration efficiency, so that the hollow portion 200 does not have the hollow fiber membrane 500. It may be preferable in terms of its structural stability.
볼록부(130)는 복수 개의 중공부(200) 위치에 대응하여 중공부(200)가 위치되는 부분에 돌출되어 위치되는 것으로, 몸체부(100)의 표면(120)이 돌출되어 형성될 수 있다. 도 9 내지 도 16의 예시에서 알 수 있는 바와 같이, 복수 개의 중공부(200)들이 돌출 형성됨에 따라 확대된 단면적을 통해 직립도가 향상될 수 있으며, 중공부(200)와 볼록부(130) 사이의 거리가 규칙적으로 일정하게 유지되어 종래 중공사막(500)에 비해 균일한 투과성 및 균일한 여과성을 가지며, 휨 강도 및 기계적 강도가 높다.The convex portion 130 is protruded to a portion where the hollow portion 200 is positioned corresponding to the positions of the plurality of hollow portions 200, and may be formed by protruding the surface 120 of the body portion 100. . As can be seen in the examples of FIGS. 9 to 16, as the plurality of hollow parts 200 protrude, the uprightness may be improved through an enlarged cross-sectional area, and the hollow part 200 and the convex part 130 may be improved. The distance between them is regularly maintained to have a uniform permeability and uniform filterability compared to the conventional hollow fiber membrane 500, high bending strength and mechanical strength.
오목부(140)는 복수 개의 중공부(200) 위치에 대응하여 이웃하는 중공부(200) 사이에 함몰되어 위치되는 것으로, 몸체부(100)의 표면(120)이 함몰되어 형성될 수 있다. The recess 140 is recessed and positioned between the neighboring hollow parts 200 corresponding to the positions of the plurality of hollow parts 200, and may be formed by recessing the surface 120 of the body part 100.
중공사막(500) 표면(120)의 단면이 원형이 아닌 볼록부(130)와 오목부(140)가 반복된 패턴의 모양으로 형성되어 원기둥 형태에 비하여 충진 밀도 및 표면적이 증가하여 여과 효율 및 투과 성능을 향상시킬 수 있고, 막오염 방지 효과도 개선될 수 있다. The cross section of the surface 120 of the hollow fiber membrane 500 is formed in the shape of a pattern in which the convex portion 130 and the concave portion 140 are not circular, so that the filling density and the surface area are increased compared to the cylindrical form, thereby increasing the filtration efficiency and permeation. The performance can be improved, and the membrane fouling prevention effect can also be improved.
일례로 도 9 내지 도 16의 예시에서 알 수 있는 바와 같이, 중공부(200)는 원기둥 형태(210)이거나 다각기둥 형태(220)일 수 있다. 일례로, 몸체부(100)의 표면(120)은 중공부(200)의 형태에 대응하여 중공부(200)가 원기둥 형태(210)인 경우 곡면을 포함하고, 중공부(200)가 다각기둥 형태(220)인 경우 다각면을 포함할 수 있다. 다만 일례로 도 13 내지 도 16의 예시에서 알 수 있는 바와 같이, 몸체부(100)의 표면(120) 형태는 중공부(200)의 형태와 무관하게 곡면이나 다각면 형태를 포함할 수 있다.For example, as can be seen in the example of FIGS. 9 to 16, the hollow part 200 may have a cylindrical shape 210 or a polygonal shape 220. For example, the surface 120 of the body portion 100 includes a curved surface when the hollow portion 200 has a cylindrical shape 210 corresponding to the shape of the hollow portion 200, and the hollow portion 200 has a polygonal pillar. Form 220 may include multiple sides. However, as can be seen in the examples of FIGS. 13 to 16, for example, the shape of the surface 120 of the body part 100 may include a curved or polygonal shape regardless of the shape of the hollow part 200.
일례로, 도 9 내지 도 16은 중공부(200)가 5 개(a), 6 개(b)인 경우로, 도 9 또는 도 10은 중공부(200)가 원기둥 형태(210)이고 중공사막(500) 표면(120)의 단면이 곡면 형태인 경우이고, 도 11 또는 도 12는 중공부(200)가 다각기둥 형태(220)이고 중공사막(500) 표면(120)의 단면이 다각면 형태인 경우이며, 도 13 또는 도 14는 중공부(200)가 다각기둥 형태(220)이고 중공사막(500) 표면(120)의 단면이 곡면 형태인 경우이고, 도 15 또는 도 16은 중공부(200)가 원기둥 형태(210)이고 중공사막(500) 표면(120)의 단면이 다각면 형태인 경우의 실시예의 예시도이다. For example, FIGS. 9 to 16 show that the hollow part 200 has five pieces (a) and six pieces (b), and FIG. 9 or FIG. 10 shows the hollow part 200 having a cylindrical shape 210 and a hollow fiber membrane. (500) The cross section of the surface 120 is in the form of a curved surface, and FIG. 11 or FIG. 12 shows that the hollow portion 200 has a polygonal pillar shape 220 and the hollow fiber membrane 500 has a cross section of the surface 120 in a polygonal shape. 13 or 14 is a case in which the hollow portion 200 is a polygonal pillar shape 220 and the cross section of the surface 120 of the hollow fiber membrane 500 is a curved shape, and FIG. 15 or 16 is a hollow portion ( 200 is an exemplary view in the case where the cylindrical shape 210 and the cross section of the surface 120 of the hollow fiber membrane 500 is a polygonal shape.
본 발명은 중공사막(500) 내부에 형성되는 중공부(200)를 향해 돌출부(300)가 형성되도록 하여 중공부(200)를 통해 흐르는 유체에 난류를 발생시킴으로써, 몸체부(100) 내부면(110)에 부착될 수 있는 불순물을 방지하여 중공사막(500)의 여과 작용을 향상시킬 수 있다. 중공사막(500) 둘레에 복수 개의 중공부(200)를 갖는 중공사막(500)은 중공사막(500)의 볼록부(130)와 오목부(140)가 규칙적으로 배열되어 막오염 방지 효과가 커서 원수를 효율적으로 여과할 수 있다. 중공부(200)는 중공사막(500)의 중심에는 위치되지 않아 수직한 직립도가 향상될 수 있어 서로 얽히거나 개별적으로 접히면서 탈락 또는 단사되는 것을 방지함으로써 여과 효율의 상승 및 유지 보수에 소요되는 비용을 절감할 수 있다. 중공사막(500)의 표면(120)이 원형이 아닌 볼록부(130)와 오목부(140)가 반복된 패턴 형태로 형성되어 원기둥 형태(210)에 비하여 충진 밀도 및 표면적이 증가하여 여과 효율 및 투과 성능을 향상시킬 수 있고, 막오염 방지 효과도 개선될 수 있다. 중공부(200)와 볼록부(130) 사이의 거리가 규칙적으로 일정하게 유지되어 종래 중공사막(500)에 비해 균일한 투과성 및 균일한 여과성을 가지며, 휨 강도 및 기계적 강도가 높다.According to the present invention, the protrusion part 300 is formed toward the hollow part 200 formed in the hollow fiber membrane 500, thereby generating turbulence in the fluid flowing through the hollow part 200, thereby making the inner surface of the body part 100 ( It may be possible to improve the filtration of the hollow fiber membrane 500 by preventing impurities that may be attached to the 110. In the hollow fiber membrane 500 having a plurality of hollow portions 200 around the hollow fiber membrane 500, the convex portion 130 and the concave portion 140 of the hollow fiber membrane 500 are regularly arranged so that the membrane fouling prevention effect is large. Raw water can be filtered efficiently. Since the hollow part 200 is not positioned at the center of the hollow fiber membrane 500, the vertical uprightness can be improved, thereby preventing falling or single yarns from being entangled or folded individually, thereby increasing the filtration efficiency and maintaining the filtration efficiency. You can save money. The surface 120 of the hollow fiber membrane 500 is formed in a pattern pattern in which the convex portion 130 and the concave portion 140 are not circular, so that the filling density and the surface area are increased compared to the cylindrical form 210, thereby increasing the filtration efficiency and Permeation performance can be improved, and membrane fouling prevention effect can also be improved. The distance between the hollow portion 200 and the convex portion 130 is regularly maintained to have a uniform permeability and uniform filterability compared to the conventional hollow fiber membrane 500, high bending strength and mechanical strength.
한편, 본 도면에 개시된 실시예는 이해를 돕기 위해 특정 예를 제시한 것에 지나지 않으며, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 개시된 실시예 이외에 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게는 자명한 것이다.On the other hand, the embodiments disclosed in the drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.
[부호의 설명][Description of the code]
100 : 몸체부 110 : 몸체부 내부면100: body portion 110: the inner surface of the body portion
120 : 몸체부의 표면 130: 볼록부120: surface of the body portion 130: convex portion
140 : 오목부 200 : 중공부140: recess 200: hollow
210 ; 중공부 원기둥 형태 220 : 중공부 다각기둥 형태210; Hollow Cylinder Shape 220: Hollow Cylinder Shape
300 ; 돌출부 500 : 중공사막300; Protrusion 500: Hollow fiber membrane
본 발명은 중공사막 내부의 돌출부와 복수 개의 중공부를 이용하여 여과 효율이 높은 중공사막을 제공할 수 있다.The present invention can provide a hollow fiber membrane having high filtration efficiency by using a protrusion and a plurality of hollow portions inside the hollow fiber membrane.

Claims (6)

  1. 원수를 여과하는 몸체부;Body portion for filtering the raw water;
    상기 몸체부 내부에 상기 몸체부의 길이 방향으로 연장되며 중공으로 형성된 중공부; 및A hollow part extending in the longitudinal direction of the body part and formed in a hollow inside the body part; And
    상기 몸체부의 내부면에 결합되어 상기 중공부로 돌출되며, 상기 원수를 여과하는 돌출부;를 포함하는 중공사막.It is coupled to the inner surface of the body portion protrudes to the hollow portion, the hollow fiber membrane comprising a projection for filtering the raw water.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 돌출부는 나선 형태로 상기 몸체부의 길이 방향으로 연장되어 상기 중공부를 흐르는 유체에 난류를 발생시키는 중공사막.The projections extend in the longitudinal direction of the body portion in the form of a spiral hollow fiber membrane to generate turbulence in the fluid flowing through the hollow portion.
  3. 청구항 2에 있어서,The method according to claim 2,
    나선 형태의 상기 돌출부는 복수 개가 형성되며,A plurality of spiral protrusions are formed,
    복수 개의 상기 돌출부는 서로 소정의 간격을 두고 상기 몸체부의 길이 방향으로 연장되어 형성되는 중공사막.The hollow fiber membrane is formed by extending in the longitudinal direction of the body portion a plurality of the protrusions at predetermined intervals from each other.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 돌출부는 상기 몸체부와 일체로 형성되는 중공사막.The protrusion is hollow fiber membrane formed integrally with the body portion.
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 중공부는 상기 몸체부 둘레에 복수 개가 서로 이격되어 배치되며,The hollow portion is arranged a plurality of spaced apart from each other around the body portion,
    상기 몸체부의 표면은 복수 개의 상기 중공부의 위치에 대응하여 상기 중공부가 위치되는 부분에는 돌출된 볼록부가 형성되고 이웃하는 상기 중공부 사이 부분에는 오목부가 형성되는 중공사막.The surface of the body portion corresponding to the position of the plurality of hollow portion is a hollow fiber membrane having a protruding convex portion is formed in a portion where the hollow portion is located, and a recess is formed in the portion between the adjacent hollow portion.
  6. 청구항 5에 있어서,The method according to claim 5,
    상기 중공부는 원기둥 형태 또는 다각기둥 형태이며,The hollow portion has a cylindrical shape or a polygonal shape,
    상기 몸체부의 표면은 상기 중공부가 배치되는 부분에는 상기 중공부의 원기둥 형태 또는 상기 중공부의 다각기둥 형태에 대응하는 면을 포함하는 돌출된 상기 볼록부가 형성되고 이웃하는 상기 중공부 사이 부분에는 함몰된 상기 오목부가 형성되는 중공사막.Surface of the body portion is formed in the hollow portion protruding the convex portion having a surface corresponding to the cylindrical shape of the hollow portion or the polygonal pillar shape of the hollow portion is formed in the recess between the adjacent hollow portion Hollow fiber membrane to be formed.
PCT/KR2018/010298 2018-02-27 2018-09-04 Hollow fiber membrane WO2019168247A1 (en)

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JPH0366380A (en) * 1989-08-04 1991-03-22 Toyobo Co Ltd Hollow fiber type plasma separating membrane
US20030140790A1 (en) * 2002-01-29 2003-07-31 Attila Herczeg Convoluted surface hollow fiber membranes
KR100916940B1 (en) * 2008-10-17 2009-09-15 김창용 Filter for water
KR20160001142A (en) * 2014-06-26 2016-01-06 한국화학연구원 A preparation method of fouling-resistant hollow fiber membrane and a fouling-resistant hollow fiber membrane prepared by the same
KR20170026297A (en) * 2015-08-31 2017-03-08 주식회사 퓨어엔비텍 Multi-bore hollow fiber membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0366380A (en) * 1989-08-04 1991-03-22 Toyobo Co Ltd Hollow fiber type plasma separating membrane
US20030140790A1 (en) * 2002-01-29 2003-07-31 Attila Herczeg Convoluted surface hollow fiber membranes
KR100916940B1 (en) * 2008-10-17 2009-09-15 김창용 Filter for water
KR20160001142A (en) * 2014-06-26 2016-01-06 한국화학연구원 A preparation method of fouling-resistant hollow fiber membrane and a fouling-resistant hollow fiber membrane prepared by the same
KR20170026297A (en) * 2015-08-31 2017-03-08 주식회사 퓨어엔비텍 Multi-bore hollow fiber membrane

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