JP2008142583A - Hollow fiber membrane module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat type hollow fiber membrane module which is capable of enhancing the resistance to pressure even if the bending stiffness of the housing itself is not enhanced. <P>SOLUTION: The hollow fiber membrane module is provided with a bundled body 2 being a bundle of a plurality of hollow fiber membranes 1, a long and slender housing 3 having a long and slender opening 30 through which the end portion of the bundled body 2, is inserted and a resin part 4 for fixation to fix each end portion of the hollow fiber membrane 1 of the bundled body 2 inserted into the opening 30 of the housing 3 in a state being opened to the inner space 32 through which the treatment liquid in the housing 3 passes and to seal the gap between the bundled body 2 and the inner wall of the housing 3. A reinforcing member 5 which is extended along the longitudinal direction of the housing 3 is installed at the resin part 4 for fixation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flat hollow fiber membrane module, and more particularly to a flat hollow fiber membrane module having a housing with high bending rigidity.

  The hollow fiber membrane module is generally sealed with a resin between the hollow fiber membrane and the housing with the end of the bundling body in which a number of hollow fiber membranes are bundled inserted into the housing and the end opened. It has a structure. And the hollow fiber membrane module is conventionally used for many uses, such as manufacture of aseptic water, drinking water, highly purified water, and air purification.

  In addition to these applications, in recent years, hollow fiber membrane modules have undergone secondary treatment and tertiary treatment in sewage treatment plants, solid-liquid separation in septic tanks, solid-liquid separation of SS (suspended material) in industrial wastewater, etc. It is also used for highly polluting water filtration. In highly polluting water filtration, predetermined treatment water is obtained or the membrane surface of the hollow fiber membrane is washed by repeatedly applying pressure and suction to the opening at the end of the hollow fiber membrane. For this reason, especially high pressure resistance is requested | required of the hollow fiber membrane module for highly polluting water filtration.

  An example of such a hollow fiber membrane module with improved pressure resistance is disclosed in Patent Document 1 below. According to the technology disclosed in Patent Document 1, the Shore D hardness after 10 seconds in hardness measurement is used as a sealing resin for sealing between the hollow fiber membranes at at least one end of the bundle of hollow fiber membranes. By using a polyurethane-based resin that is 60 or more, the pressure resistance performance of the sealing resin is improved. Further, in Patent Document 2 below, the joint surface between the fixing resin portion and the inner wall of the housing is on the seam exposed in the inner space of the housing, and the Shore A hardness after 10 seconds is in the range of 10 to 60 degrees. Disclosed is a hollow fiber membrane module in which pressure resistance is improved by providing an adhesive resin to suppress the occurrence of peeling between the fixing resin and the housing, and a method for manufacturing the same.

JP 2003-103146 A JP 2006-61816 A

  The hollow fiber module is generally divided into a cylindrical hollow fiber module having a circular cross-sectional contour shape of the focusing body and a flat hollow fiber membrane module having a narrow cross-sectional contour shape of the focusing body. The flat hollow fiber membrane module has an elongated housing in accordance with the contour shape of the cross section of the converging body. The flat hollow fiber membrane module is usually used in a state where both ends in the longitudinal direction of the housing are supported.

  Incidentally, the housing is usually made of a general-purpose inexpensive plastic material. For this reason, when the weight or external force of the hollow fiber membrane module is applied to the housing, the housing may be bent. Specifically, the vicinity of the center in the longitudinal direction of the housing is deformed downward from both supported ends. The amount of deflection tends to be proportional to the length in the longitudinal direction of the housing and the load applied to the housing.

  As a result, even when the pressure resistance of the sealing resin itself is increased by appropriately using the type and amount of the sealing resin as described in Patent Document 1, the deformation of the housing increases when the deflection of the housing increases. In some cases, the sealing resin may be broken without being able to withstand, or the sealing resin may be peeled off from the housing. Similarly, as described in Patent Document 2, the fixing resin and the housing are peeled off by bonding the fixing resin to the housing with an adhesive resin having a Shore A hardness of 10 seconds after 10 seconds. Even if it is suppressed, if the deflection of the housing increases, the adhesive resin may tear or peel off without being able to withstand the deformation.

  Therefore, in order to increase the bending rigidity of the housing and increase the pressure resistance of the hollow fiber module, the housing itself is formed of a high-strength material such as metal, engineering plastic, or fiber reinforced plastics (FRP). Can be considered. However, these materials are more expensive than general-purpose and inexpensive plastics. For this reason, if the housing is formed of these materials, the cost of the hollow fiber membrane module increases.

  Further, in order to increase the bending rigidity of the housing formed of an inexpensive plastic material, it is conceivable to increase the thickness of the housing itself or to provide a rib on the housing. However, when the thickness of the housing is increased, molding defects such as warping and sinking tend to occur in the housing. Further, when the rib is provided on the housing, stress concentrates on the base of the rib, and cracks are likely to occur due to repeated load. Furthermore, since the rib portion is thick, sink marks are likely to occur. Therefore, when the rib is provided, the appearance of the housing may be deteriorated.

  Accordingly, an object of the present invention is to provide a flat hollow fiber membrane module capable of improving pressure resistance without increasing the bending rigidity of the housing itself.

  In order to achieve the above object, a hollow fiber module of the present invention includes a converging body in which a plurality of hollow fiber membranes are bundled, an elongated housing having an elongated opening into which an end of the converging body is inserted, and an insertion in the opening of the housing. Each end of the hollow fiber membrane of the convergent body is fixed in an open state in the internal space through which the processing liquid passes inside the housing, and the gap between the convergent body and the inner wall of the housing is sealed. A fixing resin portion, and the reinforcing resin portion is provided with a reinforcing member extending along the longitudinal direction of the housing.

  According to the hollow fiber membrane module of the present invention configured as described above, the reinforcing member is provided in the fixing resin portion, so that the strength against bending of the housing, that is, the bending rigidity is improved without increasing the rigidity of the housing itself. Get higher. Thereby, generation | occurrence | production of peeling of the resin part for fixation by bending of a housing, etc. are suppressed, and the pressure | voltage resistance of a hollow fiber membrane module can be aimed at.

  In order to increase the bending rigidity of the housing, it is conceivable to increase the hardness of the entire fixing resin portion instead of providing a reinforcing member in the fixing resin portion. However, when the hardness of the entire fixing resin portion is increased, the fixing resin portion is easily broken. For this reason, it is not preferable to increase the hardness of the entire fixing resin part from the viewpoint of increasing the pressure resistance of the hollow fiber membrane module.

In the present invention, preferably, the reinforcing member is made of a material having a Young's modulus equal to or higher than that of the material constituting the housing.
Thus, the use of a reinforcing member having a Young's modulus higher than the Young's modulus of the housing itself effectively increases the bending rigidity of the housing.

In the present invention, preferably, the reinforcing member is disposed in a band shape between the converging body and the inner wall in the longitudinal direction of the housing so as to face the inner wall.
As described above, the band-shaped reinforcing member is arranged along the longitudinal direction of the housing, so that the bending rigidity of the housing is effectively enhanced.

In the present invention, it is preferable that the reinforcing member has a protruding portion that comes into contact with the converging body.
As described above, the protrusions are provided on the reinforcing member, whereby the reinforcing member can be easily positioned with respect to the focusing body.

  Thus, according to the flat hollow fiber membrane module of the present invention, the pressure resistance can be increased without increasing the bending rigidity of the housing itself.

Hereinafter, embodiments of the hollow fiber membrane module of the present invention will be described with reference to the accompanying drawings.
First, with reference to FIG. 1, the structure of the hollow fiber membrane module of embodiment is demonstrated. FIG. 1 is a schematic perspective view of the hollow fiber membrane module of the embodiment.

As shown in FIG. 1, the hollow fiber membrane module of the present embodiment includes a converging body 2 in which a plurality of hollow fiber membranes 1 are bundled, and an elongated housing 3 having an elongated opening 30 into which an end of the converging body 2 is inserted. , For fixing each end of the hollow fiber membrane 1 of the converging body 2 inserted into the opening 30 of the housing 3 and sealing between the converging body 2 and the inner wall of the opening 30 of the housing 3 The fixing resin portion 4 is provided with a reinforcing member 5 extending along the longitudinal direction of the housing 3.
Although not shown in FIG. 1, each end portion of each hollow fiber membrane 1 is fixed by the fixing resin portion 4 in an open state in the internal space 32 through which the processing liquid passes inside the housing 3. Yes.
Hereinafter, the components of the hollow fiber membrane module will be described.

  As long as the hollow fiber membrane 1 can be used as a filtration membrane, its pore diameter, porosity, film thickness, outer diameter, etc. are not particularly limited. Preferably, the hollow fiber membrane has an outer diameter of 20 to 3000 μm, a pore diameter of 0.001 to 5 μm, a porosity of 20 to 90%, and a film thickness of 5 to 300 μm.

  Moreover, the material of the hollow fiber membrane 1 is not specifically limited. Preferable examples include polysulfone resins, polyacrylonitrile, cellulose derivatives, polyolefins such as polyethylene and polypropylene, fluorine resins such as polyvinylidene fluoride and polytetrafluoroethylene, polyamides, polyesters, polymethacrylates, and polyacrylates. In addition, copolymers of these resins or those having a substituent introduced into a part thereof may be used. Furthermore, what mixed 2 or more types of resin may be used.

  Since the hollow fiber module of the present invention is a flat hollow fiber module, the cross section of the focusing body 2 has an elongated contour shape. Further, the arrangement direction of the hollow fiber membranes 1 in the converging body 2 is not particularly limited. Preferably, the hollow fiber membrane 1 is arranged substantially parallel to the flow direction of the liquid to be treated. If arranged in this way, the hollow fiber membrane 1 does not become an obstacle to the flow of the liquid to be treated. As a result, when a highly contaminated liquid containing contaminants is processed, accumulation of the contaminants on the hollow fiber membrane 1 and constriction are reduced.

  Furthermore, the arrangement direction of the hollow fiber membranes 1 is preferably such that the length direction of the hollow fiber membranes 1 is the vertical direction, that is, the vertical direction. If arranged in this way, the upward flow direction of the liquid to be treated generated during air bubbling cleaning for cleaning contaminants and the extending direction of the hollow fiber membrane 1 are substantially parallel. As a result, accumulation of impurities is prevented.

  The housing 3 has an elongated external shape as shown in FIG. And the housing 3 has the elongate opening 30 in order to insert the edge part of the condensing body 2 with the cross-sectional outline shape elongate.

  Furthermore, the housing 3 will be described with reference to FIGS. 2 and 3. 2 and 3 are cross-sectional views of the housing 3 taken along lines AA and BB in FIG.

  As shown in FIGS. 2 and 3, a step portion 31 is formed inside the housing 3. The focusing body 2 and the fixing resin portion 4 are inserted from the opening 30 of the housing 3 to the step portion 31. As a result, an internal space 32 surrounded by the fixing resin portion 4 and the inner wall of the housing 3 is formed in the housing 3. In the internal space 32, the end of the hollow fiber membrane 1 is open. The internal space 32 communicates with the outside through a passage 33. Then, the processing liquid passes through the passage 33 and the internal space 32 from the opening at the end of the hollow fiber membrane 1.

  The dimensions of each part of the housing 3 in this embodiment are, for example, as shown in FIG. 2, the width A is 30 mm, the height B is 75 mm, the height C above the step is 45 mm, and the height D below the step. 30 mm, inner step E is 3 mm. Also, the outer length F shown in FIG. 3 is 1250 mm, the inner length G is 1150 mm, and the inner step H is 3 mm.

  The material of the housing 3 is preferably a general-purpose inexpensive plastic from the viewpoint of reducing the manufacturing cost of the hollow fiber membrane module. Examples thereof include polycarbonate, polysulfone, polyolefin, PVC (polyvinyl chloride), acrylic resin, ABS resin, and modified PPE (polyphenylene ether). Further, when an incineration treatment is necessary after use, a hydrocarbon-based resin such as polyolefin that can be completely burned without emitting a toxic gas by combustion is preferable. Further, a material having mechanical strength and durability is more preferable.

  Moreover, as resin which comprises the resin part 4 for fixation, as resin for fixation which fixes the edge part of the hollow fiber membrane 1 of the bundling body 2, an epoxy resin, unsaturated polyester resin, a polyurethane resin, a silicone type filler, various A hot melt resin or the like can be used and can be appropriately selected.

  Further, the fixing resin portion 4 carries the bundling body 2 of the hollow fiber membrane 1 and secures the rigidity of the housing 3 into which the fixing resin is fitted, thereby exhibiting pressure resistance during use. For this reason, it is preferable that the fixing resin portion 4 has a predetermined range of hardness. That is, when the hardness of the fixing resin portion 4 is less than 80 degrees in Shore A hardness after 10 seconds, a large amount of resin is required to maintain pressure resistance, and the cost of the hollow fiber membrane module is increased. It becomes a factor. Further, when the hardness of the fixing resin portion 4 exceeds 99 degrees in Shore A hardness after 10 seconds, the fixing resin portion 4 itself is easily cracked. Therefore, it is preferable that the hardness of the fixing resin portion 4 is 80 to 99 degrees in Shore A hardness after 10 seconds.

  Next, the reinforcing member 5 of the hollow fiber membrane module of the present embodiment will be described with reference to FIGS. 4, 5 (a), and 5 (b). FIG. 4 is a partial cross-sectional view taken along line AA in FIG. FIG. 5A is a cross-sectional view taken along the line CC in FIG. FIG. 5B is a side view of the housing 3.

  As shown in FIGS. 4 and 5, the reinforcing member 5 is disposed in a band shape facing the inner wall in the fixing resin portion 4 between the focusing body 2 and the inner wall in the longitudinal direction of the housing 3. . Furthermore, as shown in FIG. 5, the reinforcing member 5 extends continuously over substantially the entire length in the longitudinal direction of the opening 30 of the housing 3.

  By providing the reinforcing member 5 in this way, the stress concentration on the housing 3 is also distributed to the reinforcing member 5. As a result, the bending of the housing 3 is reduced, and the occurrence of peeling between the fixing resin portion 4 and the housing 3 is greatly reduced. Thereby, the progress of peeling at the bonding interface between the fixing resin portion 4 and the housing 3, the partial destruction of the housing 3, and the occurrence of leakage are suppressed.

  Thereby, even if it does not thicken the housing 3 or provide a reinforcement rib, the bending of the housing 3 is suppressed. In addition, since the amount of resin used for the fixing resin portion 4 can be reduced, the cost of the hollow fiber membrane module can be suppressed and the pressure resistance can be improved.

  Further, the arrangement shape of the strip-shaped reinforcing member 5 is preferably a vertically long arrangement facing the inner wall of the housing 3 as shown in FIG. 4 rather than a horizontally long arrangement facing the bottom surface of the housing 3. Compared to the horizontally long arrangement, the vertically long arrangement can increase the cross-sectional secondary moment when the central portion of the housing 3 bends downward, so that the bending can be effectively suppressed. Further, if the vertically long arrangement is adopted, the reinforcing member 5 can be arranged without increasing the width perpendicular to the longitudinal direction of the housing 3 even when the gap between the focusing body 2 and the inner wall of the housing 3 is narrow. .

  The bending elastic modulus of the material of the reinforcing member 5 is not particularly limited, but in order to give the hollow fiber membrane module sufficient bending rigidity, the Young's modulus of the reinforcing member is 2000 MPa or more, more preferably 2500 MPa or more. preferable.

  The reinforcing member 5 is preferably made of a material having a Young's modulus equal to or higher than that of the material constituting the housing 3. The Young's modulus of the material of the housing 3 is usually higher than the Young's modulus of the material of the fixing resin portion 4 excluding the reinforcing member 5. Therefore, the Young's modulus of the material of the reinforcing member 5 is preferably larger than the Young's modulus of the material of the fixing resin portion 4 excluding the reinforcing member 5 and equal to or higher than that of the housing.

  Moreover, the material of the reinforcing member 5 should have mechanical strength and durability, and further have good adhesiveness. Examples thereof include polycarbonate, polysulfone, PVC (polyvinyl chloride), acrylic resin, ABS resin, and modified PPE (polyphenylene ether). Furthermore, other materials such as metal, engineering plastics, FRP may be used for the reinforcing member 5. However, from the viewpoint of reducing the manufacturing cost of the hollow fiber membrane module, it is preferable to use an inexpensive plastic material.

  Next, another example of the hollow fiber membrane module will be described with reference to FIG. FIG. 6 is a partial cross-sectional view of the medium comb hollow fiber membrane module along a cut surface perpendicular to the longitudinal direction of the housing 3. In the example shown in FIG. 6, a positioning projection 51 is provided on the side surface of the reinforcing member 5 so as to come into contact with the converging body. Thus, by providing the protrusion 51 on the side surface of the reinforcing member 5, the position of the focusing body 2 can always be fixed at the center of the housing 3. For this reason, it becomes possible to manufacture efficiently the hollow fiber membrane module with the form.

  The position and the number of the protrusions 51 are not particularly limited. For example, if there is one each above and below the reinforcing member 5, the converging body 2 does not need to be tilted. Further, the shape and size of the protrusion 51 are not particularly limited, but are preferably determined as appropriate according to the size of the space between the inner wall of the housing 3 and the focusing body 2.

Examples of the present invention will be described below.
In Example 1, the hollow fiber membrane module having the cross-sectional structure shown in FIG. 6, that is, the hollow fiber membrane module in which the reinforcing member 5 having the protrusion 51 is provided between the housing 3 and the converging body 2 at two places on the left and right. Was produced as follows.

  First, 1500 hollow fiber membranes (outer diameter: 2800 μm) made of polyvinylidene fluoride cut to a length of 2000 mm were prepared. Next, polyurethane resin as a fixing resin (Nippon Polyurethane, Nippon Run 4224/4403, hardness at curing: Shore A hardness 97 degrees after 10 seconds), in a mixed state, length 1150 mm, width 23 mm, depth 55 mm, thickness This was placed in a 2 mm ABS container, and the converging body 2 of the hollow fiber membrane 1 was immersed in the container to cure the resin, thereby forming a fixing resin portion 4 integrated with the ABS container.

  Moreover, the same operation | work was performed also about the other end of the hollow fiber membrane, and the convergence body 2 of the hollow fiber membrane which has the fixing resin part integrated with the ABS container was created. Here, the ABS container has a structure in which 2 mm square protrusions extending in the longitudinal direction from the bottom to the heights of 30 mm and 55 mm are provided on the left and right sides, and the converging body 2 is sandwiched between the protrusions 51.

  Next, the fixing resin portions at both ends were cut to a length of 25 mm from the end portions. At this time, the bottom portion of the ABS container integrated with the fixing resin portion 3 is also cut. As a result, the remaining part of the ABS container becomes the reinforcing member 5. As a result, the bundle 2 of the hollow fiber membrane 1 having the resin fixing portion to which the reinforcing member 5 was bonded and the end face of each hollow fiber membrane was opened was obtained.

  Next, prior to disposing the fixing resin portion on the housing 3 of Diarac EX18Z (manufactured by UMG ABS Co., Ltd.), an adhesive resin (22B made by Bantico, when cured) is formed on the step portion 31 of the opening 30 of the housing 3. (Hardness: Shore A hardness 40 degrees after 10 seconds) was applied quantitatively using a syringe so as not to sag, and was thickened for about 5 minutes. The previous fixing resin portion 4 was placed on the step portion 31 and left for about 12 hours. Thereafter, urethane resin (Nippon Polyurethane, Nippon Run 4224/4403) was injected so as to fill the housing 3 and between the hollow fiber membranes 1 and cured. Further, the same operation was performed on the other end face to obtain a hollow fiber membrane module in which the reinforcing member 5 was provided in the resin part 4 composed of the fixing resin part and the adhesive resin.

  In this embodiment, the Young's modulus of the fixing resin portion 4 is 500 MPa, the Young's modulus of the ABS resin constituting the reinforcing member 5 is 2400 MPa, and the Young's modulus of the housing 3 is 2250 MPa.

  The both ends of the housing of the hollow fiber membrane module manufactured in this way were supported, and the amount of bending downward of the central portion of the housing was measured with reference to the line connecting the ends. As a result, the amount of bending of the housing was only 5 mm, and no cracking or peeling occurred in the housing and the fixing resin portion.

  Next, for the pressure resistance test, the hollow fiber membrane of the manufactured hollow fiber membrane module was cut leaving a length of 20 mm, and the membrane surface and end surface of the cut hollow fiber membrane were made of urethane resin (Nippon Polyurethane). A hollow fiber membrane module test body was produced that was completely sealed with NIPPORAN 4224/4403). In this hollow fiber membrane module test body, the internal space 32 of the housing 3 is sealed except for the passage 33.

  In performing the pressure resistance test, the internal space 32 of the housing 3 was filled with water with a syringe, and a hose connected to a test pump (T-100 manufactured by Kyowa Corporation) was connected to the passage 33. Then, when water pressure was applied to the internal space 32 of the housing 3 by the test pump, peeling occurred between the housing 3 and the fixing resin portion 4 when the water pressure reached 1.2 MPa.

(Comparative example)
The hollow fiber membrane module of the comparative example has the same structure as the hollow fiber membrane module manufactured in Example 1 except that no reinforcing member is provided in the resin part 4 in the space sandwiched between the housing and the focusing body.
When the amount of bending of the housing of the hollow fiber membrane module of the comparative example was measured in the same manner as in the above example, the amount of bending was 10 mm. In addition, whitening due to deformation was observed in the central portion of the housing. Further, peeling between the housing and the fixing resin portion was observed.
Then, when water pressure is applied to the internal space of the housing in the same manner as in the first embodiment, when the water pressure becomes 0.9 MPa, peeling occurs between the housing 3 and the fixing resin portion 4 and breaks. did.

  Therefore, from the comparison between the first embodiment and the comparative example, by providing a reinforcing member in the resin portion, the housing is bent without using any conventional general-purpose material without increasing the strength of the housing. It turns out that it was able to be suppressed. Further, it can be seen that by providing the reinforcing member, it was possible to suppress the peeling of the housing and the fixing resin due to bending and to prevent the sealing resin itself from being damaged, and to significantly improve the pressure resistance performance.

  In each embodiment mentioned above, although the example which constituted the present invention on specific conditions was explained, the present invention can perform various change and combination, and is not limited to this. For example, in the above-described embodiment, the hollow fiber membrane module manufactured using the ABS container used for forming the fixing resin portion as the reinforcing member has been described. However, the hollow fiber membrane module of the present invention depends on the manufacturing method. It is not limited. The present invention provides, for example, a hollow fiber membrane module in which a fixing resin and a reinforcing member are separately put into a housing and then a sealing resin is poured into the housing to form a resin portion without bonding the fixing resin portion and the reinforcing member in advance. Also applies.

  In the above-described embodiment, the example in which the housing is provided at both ends of the converging body of the hollow fiber membrane has been described. However, the present invention also applies to the hollow fiber module in which the housing is provided only at one end of the converging body. Applied.

  Further, in the above-described embodiment, the example in which the reinforcing members are provided along the substantially entire length in the longitudinal direction of the housing on both sides of the focusing body has been described. However, in the present invention, the arrangement of the reinforcing members is limited to this. Not. For example, the reinforcing members provided on both sides of the converging body may be connected to each other in the vicinity of the end of the housing, and the reinforcing member may be disposed so as to surround the converging body along the entire circumference of the opening of the housing.

  The hollow fiber membrane module of the present invention is used for filtration that repeatedly pressurizes and sucks, and is suitable for applications requiring high pressure resistance. For example, aseptic water, drinking water, production of high-purity pure water, air In addition to applications such as purification of wastewater, secondary and tertiary treatment in sewage treatment plants, solid-liquid separation in septic tanks, and solid-liquid separation of SS (suspended substances) in industrial wastewater, etc. It is suitable for use.

It is a schematic perspective view of the hollow fiber membrane module of embodiment of this invention. It is sectional drawing of the housing which comprises the hollow fiber membrane module of embodiment of this invention. It is sectional drawing of the housing which comprises the hollow fiber membrane module of embodiment of this invention. It is an example of the hollow fiber membrane module of embodiment of this invention, and is a fragmentary sectional view along the AA line of FIG. (A) is an example of the hollow fiber membrane module of embodiment of this invention, is a cross-sectional view along CC of FIG. 4, (b) is a side view of a housing. It is another example of the hollow fiber membrane module of embodiment of this invention, and is a fragmentary sectional view along the cut surface perpendicular | vertical to the longitudinal direction of a housing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hollow fiber membrane 2 Condensing body 3 Housing 4 Fixing resin part 5 Reinforcing member 30 Opening 31 Step part 32 Internal space 33 Passage 51 Projection part

Claims (4)

A converging body in which a plurality of hollow fiber membranes are bundled;
An elongated housing having an elongated opening into which the end of the converging body is inserted;
The end of each of the hollow fiber membranes of the converging body inserted into the opening of the housing is fixed in an open state in an internal space through which the processing liquid passes inside the housing, and the converging body and the housing A fixing resin portion for sealing between the inner wall and
A hollow fiber membrane module, wherein a reinforcing member extending along a longitudinal direction of the housing is provided on the fixing resin portion. 2. The hollow fiber membrane module according to claim 1, wherein the reinforcing member is made of a material having a Young's modulus equal to or higher than that of the material constituting the housing. The hollow fiber membrane module according to claim 1, wherein the reinforcing member is disposed in a band shape facing the inner wall between the converging body and the inner wall in the longitudinal direction of the housing. The hollow fiber membrane module according to claim 3, wherein the reinforcing member has a protrusion that contacts the converging body.

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