WO2024176959A1 - 中空糸膜モジュール - Google Patents

中空糸膜モジュール Download PDF

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Publication number
WO2024176959A1
WO2024176959A1 PCT/JP2024/005461 JP2024005461W WO2024176959A1 WO 2024176959 A1 WO2024176959 A1 WO 2024176959A1 JP 2024005461 W JP2024005461 W JP 2024005461W WO 2024176959 A1 WO2024176959 A1 WO 2024176959A1
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WO
WIPO (PCT)
Prior art keywords
hollow fiber
case
plate
fiber membranes
membrane module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2024/005461
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
陽祐 伊東
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nok Corp filed Critical Nok Corp
Priority to CN202480005118.5A priority Critical patent/CN120282831A/zh
Priority to KR1020257017617A priority patent/KR20250096822A/ko
Priority to JP2025502329A priority patent/JPWO2024176959A1/ja
Priority to US19/140,263 priority patent/US20260084113A1/en
Priority to EP24760259.2A priority patent/EP4670826A1/en
Publication of WO2024176959A1 publication Critical patent/WO2024176959A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B01D63/021—Manufacturing thereof
    • B01D63/0231—Manufacturing thereof using supporting structures, e.g. filaments for weaving mats
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • H01M8/04149—Humidifying by diffusion, e.g. making use of membranes
    • 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
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/268—Drying gases or vapours by diffusion
    • 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
    • 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
    • B01D65/003—Membrane bonding or sealing
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D2053/221—Devices
    • B01D2053/223—Devices with hollow tubes
    • B01D2053/224—Devices with hollow tubes with hollow fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/02—Specific tightening or locking mechanisms
    • B01D2313/025—Specific membrane holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/04—Specific sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/04—Specific sealing means
    • B01D2313/041—Gaskets or O-rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/08—Flow guidance means within the module or the apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/10—Specific supply elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/12—Specific discharge elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B01D2313/201—Closed housing, vessels or containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B01D2313/205—Specific housing characterised by the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/23—Specific membrane protectors, e.g. sleeves or screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/26—Specific gas distributors or gas intakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2315/00—Details relating to the membrane module operation
    • B01D2315/22—Membrane contactor

Definitions

  • the present invention relates to a hollow fiber membrane module.
  • FIG. 7 is a schematic diagram of a hollow fiber membrane module according to the prior art, where (a) is a front view of the hollow fiber membrane module, and (b) is a cross-sectional view taken along line BB in (a).
  • the hollow fiber membrane module 500 comprises a hollow fiber membrane module body 510 and a pair of cover members 520, 530 attached to the hollow fiber membrane module body 510.
  • the hollow fiber membrane module body 510 comprises a case 511 and a plurality of hollow fiber membranes 512 housed in the case 511.
  • the case 511 has an interior with openings at both ends, and a plurality of hollow fiber membranes 512 are housed in this interior.
  • the pair of cover members 520, 530 are provided with openings 521, 531, respectively, which serve as inlets and outlets for fluid.
  • the case 511 is provided with a plurality of through holes 511a for communicating the internal spaces of the cover members 520, 530 with the interior of the case 511.
  • the hollow fiber membrane module body 510 is provided with a pair of sealing fixing parts 513, 514 at one end and the other end of the case 511, which seal the gaps between the hollow fiber membranes 512 while leaving the hollow interiors of the hollow fiber membranes 512 open.
  • the annular gap between the inner circumferential surface of the case 511 and the pair of sealing fixing parts 513, 514 is sealed with a liquid gasket.
  • wet gas is caused to flow from opening 521 to opening 531 through the outside of the multiple hollow fiber membranes 512, and dry gas is caused to flow from the sealing fixing part 514 side to the sealing fixing part 513 side through the hollow interiors of the multiple hollow fiber membranes 512, whereby the dry gas is humidified and the wet gas is dried.
  • the space inside the cover members 520 and 530 ensures a passage for the fluid (wet gas in the above example), allowing the fluid to flow throughout the entire interior of the case 511.
  • gaskets G1 and G2 are provided to seal the gap between the case 511 and the cover member 520 and the gap between the case 511 and the cover member 530.
  • the case 511 and the cover members 520 and 530 are both resin molded products.
  • the case 511 and the cover members 520 and 530 are also large. Therefore, in order to obtain the desired sealing performance, it was necessary to perform a separate cutting process after molding to increase the flatness of the parts of the case 511 and the cover members 520 and 530 where the gaskets G1 and G2 are in close contact. This made it difficult to suppress manufacturing costs.
  • the present invention provides a hollow fiber membrane module that can reduce manufacturing costs.
  • the present invention employs the following measures to solve the above problems.
  • the hollow fiber membrane module of the present invention comprises: A plurality of hollow fiber membranes; a case having both ends open and configured to accommodate the plurality of hollow fiber membranes; a pair of sealing and fixing parts that seal gaps between the plurality of hollow fiber membranes at one end side and the other end side of the case while leaving the hollow interiors of the plurality of hollow fiber membranes open;
  • a hollow fiber membrane module comprising: The case is a first piping section that communicates between the inside and the outside of the case and serves as a passage for a fluid flowing outside the plurality of hollow fiber membranes; and a second piping portion that communicates the inside and outside of the case and serves as a passage for a fluid flowing outside the hollow fiber membranes, on both sides of the hollow fiber membranes, a holding member for holding the plurality of hollow fiber membranes is provided in the case,
  • the holding member is A pair of plate-shaped parts that are provided so as to sandwich the plurality of hollow fiber membranes and have a plurality of through holes that serve as passages for a fluid passing through
  • the case is provided with the first piping section and the second piping section, there is no need to provide a gasket or the like, as is the case when a configuration is adopted in which a cover member is attached to the case. Furthermore, since a passage is formed between the case and a pair of plate-shaped sections provided on a holding member provided inside the case, it is also possible to allow fluid to flow throughout the entire area provided with multiple hollow fiber membranes.
  • the hollow fiber membranes may be fixed to the holding member by the pair of sealing fixing parts.
  • the first plate-shaped portion is provided with a plurality of first support portions that abut against an inner peripheral surface of the case to maintain a distance between the first plate-shaped portion and the inner peripheral surface of the case;
  • the second plate-shaped portion may be provided with a plurality of second support portions that abut against the inner circumferential surface of the case to maintain the distance between the second plate-shaped portion and the inner circumferential surface of the case.
  • the annular gap between the pair of sealing fixing parts and the case may be sealed by a seal part made of an elastic material.
  • the present invention makes it possible to reduce manufacturing costs.
  • FIG. 1 is a schematic diagram of a hollow fiber membrane module according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a hollow fiber membrane module according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a holding member according to an embodiment of the present invention.
  • FIG. 4 is a manufacturing process diagram of a hollow fiber membrane module according to an embodiment of the present invention.
  • FIG. 5 is a manufacturing process diagram of a hollow fiber membrane module according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing an application example of the hollow fiber membrane module according to the embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a hollow fiber membrane module according to the prior art.
  • FIG. 1 is a schematic diagram of a hollow fiber membrane module according to an embodiment of the present invention, in which Fig. 1(a) is a front view of the hollow fiber membrane module, and Fig. 1(b) is a plan view of the hollow fiber membrane module.
  • Fig. 2 is a schematic diagram of a hollow fiber membrane module according to an embodiment of the present invention, in which Fig. 2(a) is a side view of the hollow fiber membrane module, and Fig. 2(b) is a cross-sectional view taken along A1-A1 in Fig. 1(a) (a cross-sectional view taken along A2-A2 in Fig.
  • FIG. 3 is a schematic diagram of a holding member according to an embodiment of the present invention, in which Fig. 3(a) is a front view of the holding member, Fig. 3(b) is a plan view of the holding member, and Fig. 3(c) is a side view of the holding member.
  • Figs. 4 and 5 are diagrams showing the manufacturing process of a hollow fiber membrane module according to an embodiment of the present invention. 4(a) is a front view of an intermediate product in the manufacturing process, and FIGS. 4(b), 4(c) and 5 are portions of cross-sectional views of the intermediate product in the manufacturing process (corresponding to the A1-A1 cross-sectional view in FIG. 1(a) (the A2-A2 cross-sectional view in FIG. 1(b))).
  • the hollow fiber membrane module 10 includes a case 100 and a hollow fiber membrane unit 200 housed in the case 100.
  • the case 100 includes a cylindrical case body 110 and a pair of pipes (hereinafter referred to as a first pipe section 111 and a second pipe section 112) provided in the case body 110.
  • the case 100 is a resin molded product obtained by a mold, and the case body 110, the first pipe section 111, and the second pipe section 112 are integrally configured.
  • the case body 110 has both ends open, and its interior serves as a housing interior for housing a plurality of hollow fiber membranes 220.
  • the case body 110 according to this embodiment is composed of a pair of flat plate-shaped parts and a pair of curved parts connecting both sides of the flat plate-shaped parts, and has an oval shape when viewed from the front.
  • the first piping section 111 and the second piping section 112 connect the outside of the case 100 with the inside of the case body 110, and form a passage for fluid flowing outside the multiple hollow fiber membranes 220.
  • the first piping section 111 and the second piping section 112 are provided on the outer walls of a pair of flat plate-shaped portions of the case body 110, respectively.
  • the first piping section 111 and the second piping section 112, which connect the inside and outside of the case and serve as passages for fluid flowing outside the multiple hollow fiber membranes 220, are provided on both sides of the multiple hollow fiber membranes 220.
  • the hollow fiber membrane unit 200 includes a holding member 210, a plurality of hollow fiber membranes 220 held by the holding member 210, and a pair of sealing fixing parts 231, 232.
  • the pair of sealing fixing parts 231, 232 are configured to seal the gaps between the plurality of hollow fiber membranes 220 at one end side and the other end side of the case 100 while leaving the hollow interiors of the plurality of hollow fiber membranes 220 open.
  • Polyphenylsulfone (PPSU) can be suitably used as the material for the hollow fiber membranes 220, and epoxy resin can be suitably used as the material for the sealing fixing parts 231, 232.
  • the holding member 210 can be made of a resin material.
  • the holding member 210 has a pair of plate-shaped parts (hereinafter referred to as the first plate-shaped part 211 and the second plate-shaped part 212) that are arranged to sandwich the multiple hollow fiber membranes 220, and a connecting part 215 that connects the first plate-shaped part 211 and the second plate-shaped part 212.
  • the first plate-shaped part 211 and the second plate-shaped part 212 are provided with a plurality of through holes 211a, 212a that serve as passages for fluid passing through the outside of the multiple hollow fiber membranes 220.
  • first plate-shaped part 211 and the second plate-shaped part 212 are configured to face a pair of flat plate-shaped parts in the case body 110, respectively, when the holding member 210 is housed inside the case (inside the case body 110).
  • a passage is formed between the first plate-shaped portion 211 and the case 100 (case body 110) from the first piping portion 111 to the first plate-shaped portion 211.
  • a passage is formed between the second plate-shaped portion 212 and the case 100 from the second piping portion 112 to the second plate-shaped portion 212. This passage allows fluid to flow through the entirety of the multiple hollow fiber membranes 220 housed between the pair of plate-shaped portions 211, 212.
  • first plate-shaped portion 211 is provided with a plurality of pin-shaped first support portions 213 that abut against the inner peripheral surface of the case 100 (case body 110) and maintain the distance between the first plate-shaped portion 211 and the inner peripheral surface of the case 100.
  • second plate-shaped portion 212 is provided with a plurality of pin-shaped second support portions 214 that abut against the inner peripheral surface of the case 100 and maintain the distance between the second plate-shaped portion 212 and the inner peripheral surface of the case 100.
  • ⁇ Manufacturing method of hollow fiber membrane module The manufacturing method of the hollow fiber membrane module 10 will be described in the order of manufacturing steps.
  • the holding member 210 is inserted into the housing of the case 100 (case body 110).
  • a plurality of hollow fiber membranes 220 are filled between the first plate-shaped portion 211 and the second plate-shaped portion 212, on both sides of the connecting portion 215.
  • Fig. 4(a) shows the state after the plurality of hollow fiber membranes 220 are filled.
  • the sealing and fixing portions 231, 232 are formed.
  • Figs. 4 and 5 show the process of forming the sealing and fixing portion 232, but the same applies to the sealing and fixing portion 231.
  • a jig 400 for filling a liquid potting material such as epoxy resin is attached to the end of the case body 110.
  • the liquid potting material 232a is filled (see FIG. 4(b)).
  • the liquid potting material 232a may be poured from an injection port provided in the jig 400, or may be poured through a tube or the like into the first piping section 111.
  • the liquid level of the potting material 232a can be maintained at a predetermined position by applying centrifugal force or the like from the time the liquid potting material 232a is poured until the potting material 232a hardens.
  • both ends of the holding member 210 are configured to have a complex structure.
  • the sealing fixing portion 232 is hooked onto the end of the holding member 210.
  • a part of the sealing fixing portion 232 is present on the end face side and the inside side of the case 100 through the part of the end of the holding member 210 that protrudes above and below in the figure. Therefore, the sealing and fixing part 232 does not shift in the left-right direction in the figure relative to the holding member 210. Therefore, the sealing and fixing part 232 does not come off from the holding member 210.
  • the adhesive part between the case body 110 and the sealing and fixing part 232 is peeled off.
  • the intermediate product after the sealing and fixing part 232 is provided can be placed in a thermostatic chamber and heated for a predetermined time to peel off the adhesive part between the case body 110 and the sealing and fixing part 232.
  • a liquid gasket 310 such as a silicone adhesive is injected into the annular gap between the case body 110 and the sealing and fixing part 232 (see FIG. 5(b)).
  • this liquid gasket 310 hardens, the annular gap between the case body 110 and the sealing and fixing part 232 is sealed.
  • the annular gap between the sealing and fixing part 232 and the case 100 (case body 110) is sealed by the hardened liquid gasket 310 (sealing part made of an elastic material).
  • hollow fiber membrane module 10 An application example of the hollow fiber membrane module 10 according to the present embodiment will be described.
  • the hollow fiber membrane module 10 according to the present embodiment can be applied as a humidifier or a dehumidifier. This will be briefly described.
  • the hollow fiber membrane module 10 has an intra-membrane flow path that passes through the inside of the hollow fiber membranes 220, and an extra-membrane flow path that passes outside the hollow fiber membranes 220.
  • the intra-membrane flow path is configured so that dry gas flows from one end of the case 100 through the hollow interiors of the hollow fiber membranes 220 to the other end of the case 100 (see the solid arrow in FIG. 2(b)).
  • the extra-membrane flow path is configured so that wet gas with a higher humidity than the dry gas flows from the first piping section 111 through the inside of the case 100 to the second piping section 112 (see the dotted arrow in FIG. 2(b)).
  • lids with inlets and outlets for allowing fluid to flow through the intra-membrane flow paths are attached to both ends of the case 100. These lids more reliably suppress movement of the hollow fiber membrane unit 200 relative to the case 100.
  • the moisture in the wet gas moves into the dry gas due to the membrane separation action of the hollow fiber membrane. Therefore, the dry gas is humidified and the wet gas is dehumidified, so it can be used as both a humidifier and a dehumidifier.
  • the hollow fiber membrane module 10 can be suitably used as a humidification device for humidifying the electrolyte membrane provided in the fuel cell 50.
  • a humidification device for humidifying the electrolyte membrane provided in the fuel cell 50.
  • FIG. 6 the configuration in which the hollow fiber membrane module 10 is used as such a humidification device will be described.
  • dry air is sent to the membrane inner flow path of the hollow fiber membrane module 10 by the compressor 60 (see arrow R1).
  • the dry air flowing through the membrane inner flow path is humidified and discharged from the hollow fiber membrane module 10.
  • This humidified wet air is sent to the fuel cell 50 (see arrow R2).
  • the electrolyte membrane provided in the fuel cell 50 is maintained in a wet state.
  • the wet air generated in the fuel cell 50 is then sent to the membrane outer flow path of the hollow fiber membrane module 10 (see arrow R3), and the dry air dehumidified by the membrane separation action of the hollow fiber membrane is discharged from the hollow fiber membrane module 10 (see arrow R4).
  • the moist air generated in the fuel cell 50 has a high temperature, the temperature of the dry air sent from the compressor 60 is low, so the temperature of the moist air discharged from the hollow fiber membrane module 10 is low. In this way, the hollow fiber membrane module 10 also exhibits a heat exchange function.
  • the case 100 is provided with a first piping section 111 and a second piping section 112. Therefore, unlike the case of adopting a configuration in which a cover member is attached to the case, there is no need to provide a gasket or the like. This not only eliminates the need for bolts for fixing the gasket and the case to the cover member, reducing the number of parts, but also obviates the need for processing to increase the flatness of the portion of the molded product where the gasket comes into close contact. Therefore, it is possible to suppress the manufacturing cost.
  • the multiple hollow fiber membranes 220 are fixed to the holding member 210 by a pair of sealing fixing parts 231, 232. This makes it possible to prevent the pair of sealing fixing parts 231, 232 from moving independently. Therefore, the hollow fiber membranes 220 are prevented from being pulled or crushed, and the load on the hollow fiber membranes 220 can be reduced.
  • the hollow fiber membrane module 10 is applied as a humidifier or a dehumidifier.
  • the hollow fiber membrane module of the present invention can also be applied to other uses such as a filtration device (for example, a device that performs cross-flow filtration).
  • Hollow fiber membrane module 100 Case 110: Case body 111: First piping section 112: Second piping section 200: Hollow fiber membrane unit 210: Holding member 211: First plate-shaped section 212: Second plate-shaped section 211a, 212a: Through hole 213: First support section 214: Second support section 215: Connection section 215a Cavity section 220: Hollow fiber membrane 231, 232: Sealing and fixing section 232a: Potting material 310: Liquid gasket 400: Jig

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
PCT/JP2024/005461 2023-02-21 2024-02-16 中空糸膜モジュール Ceased WO2024176959A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202480005118.5A CN120282831A (zh) 2023-02-21 2024-02-16 中空纤维膜模块
KR1020257017617A KR20250096822A (ko) 2023-02-21 2024-02-16 중공사막 모듈
JP2025502329A JPWO2024176959A1 (https=) 2023-02-21 2024-02-16
US19/140,263 US20260084113A1 (en) 2023-02-21 2024-02-16 Hollow fiber membrane module
EP24760259.2A EP4670826A1 (en) 2023-02-21 2024-02-16 HOLLOW FIBER MEMBRANE MODULE

Applications Claiming Priority (2)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010167372A (ja) * 2009-01-23 2010-08-05 Toray Ind Inc 中空糸膜モジュール
JP2015181986A (ja) 2014-03-20 2015-10-22 Nok株式会社 中空糸膜モジュール及び中空糸膜モジュールの製造方法
WO2020026875A1 (ja) * 2018-07-30 2020-02-06 Nok株式会社 中空糸膜モジュール
WO2022255086A1 (ja) * 2021-06-02 2022-12-08 Nok株式会社 中空糸膜モジュール

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010167372A (ja) * 2009-01-23 2010-08-05 Toray Ind Inc 中空糸膜モジュール
JP2015181986A (ja) 2014-03-20 2015-10-22 Nok株式会社 中空糸膜モジュール及び中空糸膜モジュールの製造方法
WO2020026875A1 (ja) * 2018-07-30 2020-02-06 Nok株式会社 中空糸膜モジュール
WO2022255086A1 (ja) * 2021-06-02 2022-12-08 Nok株式会社 中空糸膜モジュール

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KR20250096822A (ko) 2025-06-27
EP4670826A1 (en) 2025-12-31

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