WO2014069162A1 - Case for hollow fiber membrane module - Google Patents
Case for hollow fiber membrane module Download PDFInfo
- Publication number
- WO2014069162A1 WO2014069162A1 PCT/JP2013/077111 JP2013077111W WO2014069162A1 WO 2014069162 A1 WO2014069162 A1 WO 2014069162A1 JP 2013077111 W JP2013077111 W JP 2013077111W WO 2014069162 A1 WO2014069162 A1 WO 2014069162A1
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- WO
- WIPO (PCT)
- Prior art keywords
- hollow fiber
- fiber membrane
- case
- membrane module
- hole
- Prior art date
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- 239000012528 membrane Substances 0.000 title claims abstract description 103
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 99
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000001154 acute effect Effects 0.000 claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000004382 potting Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D63/033—Specific distribution of fibres within one potting or tube-sheet
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
-
- 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
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a case for a hollow fiber membrane module. More specifically, the present invention relates to a case for a hollow fiber membrane module that is effectively used as a humidifier for a fuel cell.
- a hollow fiber membrane module in which a hollow fiber membrane bundle is inserted into a case and the end of the hollow fiber membrane is fixed via a potting portion is used as a humidifier used in a fuel cell or the like.
- dry gas humidity air
- wet gas wet air
- a case used for such a hollow fiber membrane module needs to be provided with a through hole serving as a wet gas flow path.
- the injection molding method is generally used.
- the case as shown in the case sectional view of FIG.
- Edges 3, 3 ′, 3 ′′,... are formed on the inner peripheral surface of the case 1 by the through holes 2 formed in one wall surface.
- These edges 3, 3 ′, 3 ′,... When using a commonly used two-part mold, the edge 3 ′ of the case wall located near the top and bottom are perpendicular (90 degrees). However, at other points, the inner wall side edges 3, 3 ′′,... Formed on the case wall surface are acute angles.
- the flow rate greatly fluctuates due to repeated operation and stoppages or operational load, so it is hollow.
- the hollow fiber membrane accommodated in the case for the yarn membrane module swings and repeatedly hits the inner edge of the module case, which may damage the hollow fiber membrane.
- the applicant of the present invention has a housing case that has a substantially shaft extending from one end side of the peripheral wall surface to the other end side.
- a hollow fiber membrane module case in which slit-like inflow holes are formed between a plurality of frames extending in the direction has been proposed (see Patent Document 1).
- this hollow fiber membrane module case effectively prevents the hollow fiber membrane from being damaged when the hollow fiber membrane module is assembled, the hollow fiber membrane oscillates during use because there is an edge in the inflow hole.
- the hollow fiber membrane repeatedly hits the inner edge of the module case, and the hollow fiber membrane may be damaged.
- the hollow fiber membrane and the inflow hole are directly connected to each other by providing cover portions that protrude in parallel so as to form a step with respect to the wall peripheral surface from the both ends in the axial direction of the inflow hole via the inclined connection portion.
- An aspect in which contact is difficult is also proposed (Patent Document 1, paragraph [0015], FIG. 3 (b)).
- Patent Document 1 paragraph [0015], FIG. 3 (b)
- An object of the present invention is to provide a hollow fiber membrane module having a simplified structure as compared with a case for a hollow fiber membrane module in which a through-hole serving as a fluid flow path is provided on a wall surface that has been conventionally used.
- An object of the present invention is to provide a hollow fiber membrane module case that can reduce breakage during use of the module.
- An object of the present invention is to provide a hollow fiber membrane module case in which a through-hole serving as a fluid flow path is provided on a wall surface, and an R-shaped rib is provided at an acute-angled edge portion of the through-hole inside the case. This is achieved by the case for the hollow fiber membrane module further provided with a mesh in the through hole.
- the hollow fiber membrane module case according to the present invention is accommodated in the case because the R-shaped rib is provided at the acute edge portion of the through hole inside the case, which may cause damage to the hollow fiber membrane when the hollow fiber membrane module is used. It is possible to reduce the breakage of the hollow fiber membrane when using the hollow fiber membrane module. Since the R-shaped rib is formed integrally with the edge portion, the structure of the case for the hollow fiber membrane module has a simplified structure and can be easily manufactured.
- FIG. 2 is a side view which shows the one aspect
- FIG. 2 is a cross-sectional view taken along the line AA ′ of the hollow fiber membrane module case shown in FIG. 1 (conventional embodiment).
- FIG. 2 is a cross-sectional view of the hollow fiber membrane module case taken along the line AA ′ of FIG.
- FIG. 2 is a cross-sectional view taken along the line BB ′ of the hollow fiber membrane module case according to the present invention, in which R-shaped ribs are provided at the through hole edge portion inside the case shown in FIG. 1.
- the hollow fiber membrane module case of the present invention has a through-hole serving as a fluid flow path formed on a wall surface, and an R-shaped rib is provided at an acute-angled edge portion of the through-hole inside the case.
- the hole has a mesh.
- a cross-sectional shape of the R-shaped rib a shape that does not create an acute angle by being attached to an acute-angled portion of the acute-angled edge portion of the through hole, for example, a semicircular shape, etc. Is mentioned.
- FIG. 3 is a cross-sectional view of a case for a hollow fiber membrane module according to the present invention.
- the hollow fiber membrane module has a through-hole formed as a fluid flow path on the wall surface illustrated in FIG. It is sectional drawing of the AA 'line
- an injection molding method is generally used.
- FIG. 2 (conventional example) is shown.
- edges 3, 3 ′, 3 ′′,... are formed on the inner peripheral surface of the case 1 by the through-holes 2 formed on the wall surface of the case 1.
- R-type ribs 4 are formed.
- the R-shaped rib 4 is formed integrally with the edge portion when the case is injection molded.
- Patent Document 1 by providing a cover portion that protrudes in parallel so as to form a step with respect to the wall peripheral surface from the both ends in the axial direction of the inflow hole via the inclined connection portion, damage during housing of the hollow fiber membrane is prevented.
- the case for the hollow fiber membrane module according to the present invention has a simplified configuration without using a plurality of members as in this conventional example, and at the same time as the case injection molding Since a rib part can also be formed, it has the characteristic that manufacture of the case for hollow fiber membrane modules is easy.
- the R-shaped rib is formed on at least an acute edge among the edges formed at the time of manufacturing the case.
- the edge 3 'of the case wall surface located near the top and bottom apex is a right angle (90 degrees), so the formation of the R-shaped rib 4' is optional.
- FIG. 4 shows a cross section of a case for a hollow fiber membrane module according to the present invention, and a case for a hollow fiber membrane module in which a through hole serving as a fluid flow path is formed on the wall surface illustrated in FIG.
- FIG. 5 is a transverse cross-sectional view of the portion BB ′ of the hollow fiber membrane module case in which R-shaped ribs are formed at the edge portions of the through holes.
- R-shaped ribs 4, 4 ′, 4 ′′ R-shaped ribs 4, 4 ′, 4 ′′,.
- the R-shaped ribs 4, 4 ', 4 ", ... are formed in a rod shape in which adjacent edges are connected in the long axis direction of the case.
- the mesh 5 is preferably disposed in the through hole inside the case by a mesh insert molding method (FIG. 5).
- a mesh insert molding method As the mesh, resin or metal is used, and the case material is injected after inserting the mesh into the mold (insert), and the mesh member and the case material are integrated to form a through hole.
- a hollow fiber membrane module case is manufactured.
- the hollow fiber membrane module case accommodates a hollow fiber membrane bundle composed of a plurality of hollow fiber membranes, and each end of the hollow fiber membrane bundle is opened so that only the hollow interior of the hollow fiber membrane is open to the outside.
- a hollow fiber membrane module is configured by fixing the end portions of the hollow fiber membranes through potting portions in which the outer wall surfaces of the hollow fiber membranes and the inner wall surface of the case are sealed and fixed.
- this is a solid polymer fuel cell Effective as a humidifying hollow fiber membrane module used in humidifiers to humidify the fuel gas supplied to the air, as well as a dehumidifying hollow fiber membrane module, a hollow fiber membrane module used for fluid filtration, separation and concentration, etc. Used for.
Abstract
A case for a hollow fiber membrane module (1) provided with a through-hole (2) serving as a fluid flow channel in a wall surface, wherein the case for a hollow fiber membrane module has rounded ribs (4, 4', 4'', …) provided to an acute angle edge portion of the through-hole on the inner side of the case, and is furthermore preferably provided with a mesh in the through-hole on the inner side of the case. This case for a hollow fiber membrane module is capable of reducing damage when an accommodated hollow fiber membrane module is used in comparison with a conventional case for a hollow fiber membrane provided with a through-hole serving as a fluid flow channel in a wall surface.
Description
本発明は、中空糸膜モジュール用ケースに関する。さらに詳しくは、燃料電池の加湿装置などとして有効に用いられる中空糸膜モジュール用のケースに関する。
The present invention relates to a case for a hollow fiber membrane module. More specifically, the present invention relates to a case for a hollow fiber membrane module that is effectively used as a humidifier for a fuel cell.
現在、燃料電池などに用いられる加湿装置として、中空糸膜束をケースに挿嵌し、ケース端部でポッティング部を介して中空糸膜端部を固定せしめた中空糸膜モジュールが用いられている。これは、中空糸膜の内側にドライガス(乾燥空気；加湿対象)を、また中空糸膜の外側にウェットガス(湿潤空気)をそれぞれ通気することによりドライガスが加湿されるというものである。かかる中空糸膜モジュールに用いられるケースには、ウェットガスの流路となる貫通穴を設ける必要がある。
Currently, a hollow fiber membrane module in which a hollow fiber membrane bundle is inserted into a case and the end of the hollow fiber membrane is fixed via a potting portion is used as a humidifier used in a fuel cell or the like. . This is because dry gas (humidified air) is passed inside the hollow fiber membrane, and wet gas (wet air) is passed outside the hollow fiber membrane, whereby the dry gas is humidified. A case used for such a hollow fiber membrane module needs to be provided with a through hole serving as a wet gas flow path.
中空糸膜モジュール用ケースを量産するに際しては一般的に射出成型法が用いられるが、射出成型で貫通穴を設けたケースを作製した場合には、図２のケース断面図に示されるようにケース１壁面に形成された貫通穴２によりケース１内周面にエッジ３、３′、３′′、・・・・が形成されることとなる。かかるエッジ３、３′、３′′、・・・・は、通常用いられる二つ割りの金型を用いた場合には、上下頂部付近に位置するケース壁面のエッジ３′は直角(90度)となるものの、それ以外の箇所ではケース壁面に形成される内壁面側エッジ３、３′′、・・・・は鋭角となる。
When mass producing hollow fiber membrane module cases, the injection molding method is generally used. However, when a case with a through hole is produced by injection molding, the case as shown in the case sectional view of FIG. Edges 3, 3 ′, 3 ″,... Are formed on the inner peripheral surface of the case 1 by the through holes 2 formed in one wall surface. These edges 3, 3 ′, 3 ′,..., When using a commonly used two-part mold, the edge 3 ′ of the case wall located near the top and bottom are perpendicular (90 degrees). However, at other points, the inner wall side edges 3, 3 ″,... Formed on the case wall surface are acute angles.
例えば自動車用の燃料電池に使用される加湿膜モジュールには、数千NL/分と高流量でガスが流れることに加え、運転・停止の繰り返しあるいは運転負荷によりその流量が大きく変動するため、中空糸膜モジュール用ケース内に収容された中空糸膜が揺動し、モジュールケース内側のエッジに繰り返してあたることとなり、中空糸膜が破損するおそれがある。
For example, in humidifying membrane modules used in automobile fuel cells, in addition to the flow of gas at a high flow rate of several thousand NL / min, the flow rate greatly fluctuates due to repeated operation and stoppages or operational load, so it is hollow. The hollow fiber membrane accommodated in the case for the yarn membrane module swings and repeatedly hits the inner edge of the module case, which may damage the hollow fiber membrane.
本出願人は先に、中空糸膜モジュール組み立て時に発生する中空糸膜の破損を防止することを目的として、ハウジングケースに、その周壁面の一方の端部側から他方の端部側まで略軸方向に延びる複数本の枠の間に形成されるスリット状の流入孔を形成した中空糸膜モジュール用ケースを提案している(特許文献１参照)。かかる中空糸膜モジュール用ケースは、中空糸膜モジュール組み立て時に発生する中空糸膜の破損を有効に防止せしめるものの、流入孔にはエッジが存在することから、使用時においては中空糸膜が揺動し、中空糸膜がモジュールケース内側のエッジに繰り返してあたることとなり、中空糸膜が破損するおそれがある。これに対して、流入孔の軸方向の両端部から傾斜接続部を介し壁周面に対して段差をなすように平行に突出するカバー部を備えることにより、中空糸膜と流入孔とが直接接触しにくい態様についても提案している(特許文献１ 段落〔００１５〕、図３(b))。しかしながら、鋭角なエッジに対しての対応策については言及されておらず、またカバー部はケースとは別の部材として用意する必要があり、簡素化された構成とまではいえないものであった。
In order to prevent damage to the hollow fiber membrane that occurs during assembly of the hollow fiber membrane module, the applicant of the present invention has a housing case that has a substantially shaft extending from one end side of the peripheral wall surface to the other end side. A hollow fiber membrane module case in which slit-like inflow holes are formed between a plurality of frames extending in the direction has been proposed (see Patent Document 1). Although this hollow fiber membrane module case effectively prevents the hollow fiber membrane from being damaged when the hollow fiber membrane module is assembled, the hollow fiber membrane oscillates during use because there is an edge in the inflow hole. However, the hollow fiber membrane repeatedly hits the inner edge of the module case, and the hollow fiber membrane may be damaged. On the other hand, the hollow fiber membrane and the inflow hole are directly connected to each other by providing cover portions that protrude in parallel so as to form a step with respect to the wall peripheral surface from the both ends in the axial direction of the inflow hole via the inclined connection portion. An aspect in which contact is difficult is also proposed (Patent Document 1, paragraph [0015], FIG. 3 (b)). However, there is no mention of countermeasures against sharp edges, and it is necessary to prepare the cover part as a separate member from the case, and it cannot be said that the structure is simplified. .
本発明の目的は、従来から用いられてきた壁面に流体の流路となる貫通穴が設けられている中空糸膜モジュール用ケースと比べて簡素化された構成で、収容された中空糸膜のモジュール使用時における破損を低減せしめることを可能とする中空糸膜モジュール用ケースを提供することにある。
An object of the present invention is to provide a hollow fiber membrane module having a simplified structure as compared with a case for a hollow fiber membrane module in which a through-hole serving as a fluid flow path is provided on a wall surface that has been conventionally used. An object of the present invention is to provide a hollow fiber membrane module case that can reduce breakage during use of the module.
かかる本発明の目的は、壁面に流体の流路となる貫通穴が設けられている中空糸膜モジュール用ケースにおいて、ケース内側の貫通穴鋭角エッジ部分にＲ型リブが設けられ、好ましくはケース内側の貫通穴にさらにメッシュを備えた中空糸膜モジュール用ケースによって達成される。
An object of the present invention is to provide a hollow fiber membrane module case in which a through-hole serving as a fluid flow path is provided on a wall surface, and an R-shaped rib is provided at an acute-angled edge portion of the through-hole inside the case. This is achieved by the case for the hollow fiber membrane module further provided with a mesh in the through hole.
本発明に係る中空糸膜モジュール用ケースは、中空糸膜モジュール使用時に中空糸膜の破損原因となりうるケース内側の貫通穴鋭角エッジ部分にＲ型リブが設けられているので、ケース内に収容された中空糸膜の中空糸膜モジュール使用時における破損を低減せしめることができるといったすぐれた効果を奏する。このＲ型リブは、エッジ部分と一体的に形成されるため、かかる中空糸膜モジュール用ケースは構成が簡素化されており、容易にその製造が可能であるといった特徴を有する。
The hollow fiber membrane module case according to the present invention is accommodated in the case because the R-shaped rib is provided at the acute edge portion of the through hole inside the case, which may cause damage to the hollow fiber membrane when the hollow fiber membrane module is used. It is possible to reduce the breakage of the hollow fiber membrane when using the hollow fiber membrane module. Since the R-shaped rib is formed integrally with the edge portion, the structure of the case for the hollow fiber membrane module has a simplified structure and can be easily manufactured.
さらにケース内側の貫通穴にメッシュを備えることにより、鋭角エッジ以外の直角のエッジ部分についてはＲ型リブを設けなくとも中空糸膜の破損を有効に防止せしめることが可能となる。
Furthermore, by providing a mesh in the through hole inside the case, it is possible to effectively prevent the hollow fiber membrane from being damaged without providing an R-shaped rib at a right-angled edge portion other than the acute edge.
本発明の中空糸膜モジュール用ケースは、壁面に流体の流路となる貫通穴が形成されており、ケース内側の貫通穴鋭角エッジ部分にＲ型リブが設けられ、好ましくはさらにケース内側の貫通穴にメッシュを備えている。ここで、Ｒ型リブの断面形状としては、貫通穴鋭角エッジ部分の鋭角箇所に取り付けられることにより該鋭角箇所を鈍角と成し、鋭角を創出することがない形状、例えば半円形状のものなどが挙げられる。
The hollow fiber membrane module case of the present invention has a through-hole serving as a fluid flow path formed on a wall surface, and an R-shaped rib is provided at an acute-angled edge portion of the through-hole inside the case. The hole has a mesh. Here, as a cross-sectional shape of the R-shaped rib, a shape that does not create an acute angle by being attached to an acute-angled portion of the acute-angled edge portion of the through hole, for example, a semicircular shape, etc. Is mentioned.
以下、図面を参照しながら本発明に係る中空糸膜モジュール用ケースの具体的態様を詳細に説明する。なお、以下に述べる具体的態様はあくまで本発明の一態様を例示しているに過ぎず、本発明はこれらの各態様に限定されるものではない。
Hereinafter, specific embodiments of the hollow fiber membrane module case according to the present invention will be described in detail with reference to the drawings. The specific embodiments described below merely exemplify one embodiment of the present invention, and the present invention is not limited to these embodiments.
図３は、本発明に係る中空糸膜モジュール用ケースの一断面を示したものであり、図１に例示されている壁面に流体の流路となる貫通穴が形成された中空糸膜モジュール用ケースのＡ－Ａ′線部分の断面図である。従来の技術で述べた如く中空糸膜モジュール用ケースを量産するに際しては一般的に射出成型法が用いられ、射出成型で貫通穴を設けたケースを作製すると、図２(従来例)に示されるようにケース１壁面に形成された貫通穴２により、ケース１内周面にエッジ３、３′、３′′、・・・・が形成されることとなるが、本発明ではかかるエッジ部分にＲ型のリブ４を形成せしめることを特徴としている。かかるＲ型リブ４を設けることによって、ケース内に中空糸膜を収容した中空糸膜モジュール使用時に中空糸膜が揺動しても、中空糸膜がエッジ部分に繰り返し当たって中空糸膜が破損することを防ぐことが可能となる。
FIG. 3 is a cross-sectional view of a case for a hollow fiber membrane module according to the present invention. The hollow fiber membrane module has a through-hole formed as a fluid flow path on the wall surface illustrated in FIG. It is sectional drawing of the AA 'line | wire part of a case. When mass producing hollow fiber membrane module cases as described in the prior art, an injection molding method is generally used. When a case having a through hole is produced by injection molding, FIG. 2 (conventional example) is shown. In this way, edges 3, 3 ′, 3 ″,... Are formed on the inner peripheral surface of the case 1 by the through-holes 2 formed on the wall surface of the case 1. R-type ribs 4 are formed. By providing such an R-shaped rib 4, even when the hollow fiber membrane swings when using the hollow fiber membrane module containing the hollow fiber membrane in the case, the hollow fiber membrane repeatedly hits the edge portion and the hollow fiber membrane is damaged. Can be prevented.
かかるＲ型リブ４は、ケースの射出成形時にエッジ部分と一体的に形成される。特許文献１では、流入孔の軸方向の両端部から傾斜接続部を介し壁周面に対して段差をなすように平行に突出するカバー部を備えることにより、中空糸膜の収容時における破損を防止するといった態様が示されているが、本発明に係る中空糸膜モジュール用ケースはこの従来例のように複数の部材を用いることなく簡素化された構成で、かつケースの射出成形時と同時にリブ部も形成しうるので、中空糸膜モジュール用ケースの製造が容易であるといった特徴を有する。
The R-shaped rib 4 is formed integrally with the edge portion when the case is injection molded. In Patent Document 1, by providing a cover portion that protrudes in parallel so as to form a step with respect to the wall peripheral surface from the both ends in the axial direction of the inflow hole via the inclined connection portion, damage during housing of the hollow fiber membrane is prevented. Although the aspect of preventing is shown, the case for the hollow fiber membrane module according to the present invention has a simplified configuration without using a plurality of members as in this conventional example, and at the same time as the case injection molding Since a rib part can also be formed, it has the characteristic that manufacture of the case for hollow fiber membrane modules is easy.
Ｒ型リブは、ケース製造時に形成されるエッジのうち、少なくとも鋭角となるものについて形成される。通常用いられる二つ割りの金型を用いた場合には、上下頂部付近に位置するケース壁面のエッジ３′は直角(90度)となるので、Ｒ型リブ４′の形成は任意である。またケース製造時に形成されるエッジが鈍角の部分についても同様である。したがって、本発明では、Ｒ型リブが鋭角のエッジ部分のみに形成される態様および鋭角のエッジ部分に加えて鋭角エッジ部分以外のエッジ部分にもＲ型リブが形成された態様のいずれをも含む。
The R-shaped rib is formed on at least an acute edge among the edges formed at the time of manufacturing the case. In the case of using a normally used two-part mold, the edge 3 'of the case wall surface located near the top and bottom apex is a right angle (90 degrees), so the formation of the R-shaped rib 4' is optional. The same applies to a portion having an obtuse edge formed at the time of manufacturing the case. Therefore, in the present invention, both the aspect in which the R-type rib is formed only on the acute-angled edge part and the aspect in which the R-type rib is formed on the edge part other than the acute-angled edge part are included. .
図４は本発明に係る中空糸膜モジュール用ケースの一断面を示したものであり、図１に例示されている壁面に流体の流路となる貫通穴が形成された中空糸膜モジュール用ケースの貫通穴エッジ部分にＲ型リブが形成された中空糸膜モジュール用ケースのＢ－Ｂ’線部分の横断面図である。図４では、エッジのすべてにＲ型リブ４、４′、４′′、・・・・が設けられている。この図では、Ｒ型リブ４、４′、４′′、・・・・は隣り合うエッジ同士をケースの長軸方向に繋いだ棒状に形成されている。
FIG. 4 shows a cross section of a case for a hollow fiber membrane module according to the present invention, and a case for a hollow fiber membrane module in which a through hole serving as a fluid flow path is formed on the wall surface illustrated in FIG. FIG. 5 is a transverse cross-sectional view of the portion BB ′ of the hollow fiber membrane module case in which R-shaped ribs are formed at the edge portions of the through holes. In FIG. 4, R- shaped ribs 4, 4 ′, 4 ″,. In this figure, the R- shaped ribs 4, 4 ', 4 ", ... are formed in a rod shape in which adjacent edges are connected in the long axis direction of the case.
ここで、射出成型によるケース製造時には、好ましくはメッシュインサート成型法によりケース内側の貫通穴にメッシュ５が配置される(図５)。メッシュとしては、樹脂製あるいは金属製のものが用いられ、メッシュを金型に装着(インサート)後にケース材料を注入し、メッシュ部材とケース材料とを一体化させることにより、貫通穴が形成された中空糸膜モジュール用ケースの製造が行われる。このようにケース内側の貫通穴にメッシュを備えることにより、鋭角エッジ以外の直角のエッジ部分、すなわちエッジ３および貫通穴によって円周方向に形成されるエッジ(図示せず)については、Ｒ型リブを設けなくとも中空糸膜の破損を有効に防止せしめることが可能となり、また貫通穴がケース長軸方向に形成されている場合であっても、中空糸膜のケース外への突出を有効に防止することができる。
Here, when the case is manufactured by injection molding, the mesh 5 is preferably disposed in the through hole inside the case by a mesh insert molding method (FIG. 5). As the mesh, resin or metal is used, and the case material is injected after inserting the mesh into the mold (insert), and the mesh member and the case material are integrated to form a through hole. A hollow fiber membrane module case is manufactured. By providing a mesh in the through hole inside the case as described above, a right-angled edge portion other than an acute edge, that is, an edge (not shown) formed in the circumferential direction by the edge 3 and the through hole, It is possible to effectively prevent breakage of the hollow fiber membrane without the need to provide a hollow fiber membrane, and it is possible to effectively project the hollow fiber membrane out of the case even when the through hole is formed in the longitudinal direction of the case. Can be prevented.
本発明に係る中空糸膜モジュール用ケースは、複数の中空糸膜からなる中空糸膜束を収容し、中空糸膜束端部を中空糸膜の中空内部のみが外部に開放されるように各中空糸膜の外壁面間およびケースの内壁面間を封止固定したポッティング部を介して中空糸膜端部を固定せしめることによって中空糸膜モジュールを構成し、これは例えば固体高分子型燃料電池に供給する燃料ガスを加湿するための加湿器等に使用される加湿用中空糸膜モジュールのほか、除湿用中空糸膜モジュール、流体のろ過、分離、濃縮に用いられる中空糸膜モジュールなどとして有効に用いられる。
The hollow fiber membrane module case according to the present invention accommodates a hollow fiber membrane bundle composed of a plurality of hollow fiber membranes, and each end of the hollow fiber membrane bundle is opened so that only the hollow interior of the hollow fiber membrane is open to the outside. A hollow fiber membrane module is configured by fixing the end portions of the hollow fiber membranes through potting portions in which the outer wall surfaces of the hollow fiber membranes and the inner wall surface of the case are sealed and fixed. For example, this is a solid polymer fuel cell Effective as a humidifying hollow fiber membrane module used in humidifiers to humidify the fuel gas supplied to the air, as well as a dehumidifying hollow fiber membrane module, a hollow fiber membrane module used for fluid filtration, separation and concentration, etc. Used for.
１ 中空糸膜モジュール用ケース
２ 貫通穴
３，３′，３′′ エッジ
４，４′，４′′ Ｒ型リブ
５ メッシュ 1 Case for hollowfiber membrane module 2 Through hole 3, 3 ', 3 " Edge 4, 4', 4" R-type rib 5 Mesh
２ 貫通穴
３，３′，３′′ エッジ
４，４′，４′′ Ｒ型リブ
５ メッシュ 1 Case for hollow
Claims (12)
- ケース壁面に流体の流路となる貫通穴が設けられている中空糸膜モジュール用ケースにおいて、
ケース内側の貫通穴鋭角エッジ部分にＲ型リブが設けられた中空糸膜モジュール用ケース。 In the case for a hollow fiber membrane module in which a through hole serving as a fluid flow path is provided on the case wall surface,
A case for a hollow fiber membrane module in which an R-shaped rib is provided at an acute-angle edge portion of a through hole inside the case. - 鋭角エッジ部分に加えて、鋭角エッジ部分以外のエッジ部分にＲ型リブが設けられた請求項１記載の中空糸膜モジュール用ケース。 The hollow fiber membrane module case according to claim 1, wherein an R-shaped rib is provided on an edge portion other than the acute angle edge portion in addition to the acute angle edge portion.
- Ｒ型リブが、隣り合うエッジ同士をケースの長軸方向に繋いだ棒状に形成されている請求項１または２記載の中空糸膜モジュール用ケース。 The hollow fiber membrane module case according to claim 1 or 2, wherein the R-shaped rib is formed in a rod shape in which adjacent edges are connected in the longitudinal direction of the case.
- 射出成型法によって製造された請求項１、２または３記載の中空糸膜モジュール用ケース。 The case for a hollow fiber membrane module according to claim 1, 2 or 3 manufactured by an injection molding method.
- さらにケース内側の貫通穴にメッシュを備えた請求項１または２記載の中空糸膜モジュール用ケース。 The hollow fiber membrane module case according to claim 1 or 2, further comprising a mesh in a through hole inside the case.
- メッシュインサート成型法によってメッシュが形成された請求項５記載の中空糸膜モジュール用ケース。 The hollow fiber membrane module case according to claim 5, wherein a mesh is formed by a mesh insert molding method.
- 請求項１記載の中空糸膜モジュールケースに複数の中空糸膜からなる中空糸膜束を収容し、中空糸膜束端部を中空糸膜の中空内部のみが外部に開放されるように各中空糸膜の外壁面間およびケースの内壁面間を封止固定したポッティング部を備えた中空糸膜モジュール。 A hollow fiber membrane bundle comprising a plurality of hollow fiber membranes is accommodated in the hollow fiber membrane module case according to claim 1, and the hollow fiber membrane bundle ends are hollowed so that only the hollow interior of the hollow fiber membrane is open to the outside. A hollow fiber membrane module including a potting portion in which a space between outer wall surfaces of a yarn membrane and an inner wall surface of a case are sealed and fixed.
- 請求項５記載の中空糸膜モジュールケースに複数の中空糸膜からなる中空糸膜束を収容し、中空糸膜束端部を中空糸膜の中空内部のみが外部に開放されるように各中空糸膜の外壁面間およびケースの内壁面間を封止固定したポッティング部を備えた中空糸膜モジュール。 A hollow fiber membrane bundle comprising a plurality of hollow fiber membranes is accommodated in the hollow fiber membrane module case according to claim 5, and the hollow fiber membrane bundle ends are hollowed so that only the hollow interior of the hollow fiber membrane is opened to the outside. A hollow fiber membrane module including a potting portion in which a space between outer wall surfaces of a yarn membrane and an inner wall surface of a case are sealed and fixed.
- 加湿装置として用いられる請求項７記載の中空糸膜モジュール。 The hollow fiber membrane module according to claim 7, which is used as a humidifier.
- 加湿装置として用いられる請求項８記載の中空糸膜モジュール。 The hollow fiber membrane module according to claim 8, which is used as a humidifier.
- 加湿装置が、燃料電池の加湿装置である請求項９記載の中空糸膜モジュール。 The hollow fiber membrane module according to claim 9, wherein the humidifier is a fuel cell humidifier.
- 加湿装置が、燃料電池の加湿装置である請求項１０記載の中空糸膜モジュール。 The hollow fiber membrane module according to claim 10, wherein the humidifier is a fuel cell humidifier.
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| JP2018505053A (en) * | 2015-02-12 | 2018-02-22 | コーロン インダストリーズ インク | Hollow fiber membrane bundle and method for producing the same |
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| KR102137231B1 (en) * | 2018-11-30 | 2020-07-23 | (주)바이오데이즈 | A radiation cooling and heating system with a solar heat pump by using the membrane type dehumidifier |
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