JP7230275B2 - Hollow fiber membrane module - Google Patents

Description

The present invention relates to a hollow fiber membrane module.

Conventionally, a hollow fiber membrane module provided in a hollow fiber membrane module unit includes an upper housing, a lower housing, a pair of pillars, and a hollow fiber membrane sheet, and a confluence pipe for the water intake of the upper housing. A proposal has been made in which a suction pump is connected to the confluence tube (see, for example, Patent Document 1).

In the hollow fiber membrane module described in Patent Literature 1, a pair of struts connect both ends of the upper housing and both ends of the lower housing, respectively, so that the distance between the housings is kept constant and the module as a whole is flat. A hollow fiber membrane module is constructed.

JP 2015-57284 A

In the hollow fiber membrane module as described in Patent Document 1, a pair of housings and a pair of struts constitute a rectangular frame-shaped frame member. A hollow fiber membrane module is generally large, and therefore, even if a small external force is applied to the frame member, a load that deforms the frame member may be generated, and a large load may be applied to the connecting portion between the housing and the strut. . In particular, when the overall size of the hollow fiber membrane module is increased, the load applied to the connecting portion tends to increase. In addition, if the load applied to the connecting portion becomes large, there is a possibility that the connecting portion between the housing and the column will be damaged. For this reason, it has been desired to improve the durability of the conventional hollow fiber membrane module against the load applied to the connecting portion.

The present invention has been made in view of the above problems, and an object thereof is to provide a hollow fiber membrane module capable of improving durability.

In order to achieve the above object, a hollow fiber membrane module according to the present invention comprises a plurality of hollow fiber membranes and a support supporting the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned, The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. and at least one reinforcing member for reinforcing the connection between the holding part and the supporting part, and the pair of supporting parts are formed to be connectable to each of the holding parts. and the reinforcing member is provided in at least one of the connecting portions, and the reinforcing member is inserted into the connecting portion and attached to the connecting portion. and the reinforcing member has at least one projecting portion that projects toward the connecting portion or the strut portion when attached to the connecting portion.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member has at least one protrusion formed to face the connecting portion, and is formed to face the strut portion. at least one of the protrusions.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member has four surfaces extending along the insertion direction of the reinforcing member, and each of the four surfaces has at least one protrusion. are provided.

In the hollow fiber membrane module according to one aspect of the present invention, the protrusion of the reinforcing member is formed to extend along the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member has a hollow portion forming a space extending along the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member has a dividing section that divides the hollow section into two spaces.

In the hollow fiber membrane module according to one aspect of the present invention, the partition extends in the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the connection portion includes a placement portion in which the end portion of the support portion is arranged, and the support portion facing the support portion arranged in the placement portion. and a wall forming a space adjacent to the wall, and the reinforcing member is adapted to be inserted into and attached to the space.

In the hollow fiber membrane module according to one aspect of the present invention, the at least one connecting portion is provided with a plurality of the reinforcing members, and the connecting portion has the plurality of reinforcing members on one side and the other side. It is formed so that it can be attached with the strut part interposed between the sides.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member attached to the one side and the reinforcing member attached to the other side have sizes different from each other.

In the hollow fiber membrane module according to one aspect of the present invention, the wall section forms a space adjacent to the support section arranged in the arrangement section on the one side, and the arrangement section on the other side. Another space is formed adjacent to the strut portion located on the portion.

In the hollow fiber membrane module according to one aspect of the present invention, the one side and the other side are aligned in the extending direction of the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, a filler is provided between the reinforcing member and the connection portion and the support portion.

In order to achieve the above object, a hollow fiber membrane module according to the present invention comprises a plurality of hollow fiber membranes and a support supporting the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned, The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. and a plurality of reinforcing members for reinforcing the connection between the holding part and the supporting part. At least one of the connection portions is provided with a plurality of insertion portions forming a gap into which the reinforcing member can be inserted, and at least one of the plurality of reinforcing members One has a restricting portion projecting in a direction intersecting the insertion direction of the reinforcing member, and a part of the plurality of inserting portions restricts the restricting portion of the reinforcing member inserted into the inserting portion. An opening projecting outside the insertion portion is formed, and the size of the opening is different from that of the plurality of other insertion portions.

In the hollow fiber membrane module according to one aspect of the present invention, the width in the direction in which the restricting portion protrudes in the open portion is smaller in a part of the insertion portion than in the other insertion portion.

In the hollow fiber membrane module according to one aspect of the present invention, the open portion is formed at the end portion of the insertion portion on the rear side in the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the plurality of insertion portions are provided so as to face each other across the support portion connected to the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, the plurality of insertion portions are arranged side by side in the extending direction of the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, the connection section has two insertion sections, one of the two insertion sections is formed with the opening, and the opening is formed One of the inserted portions is provided closer to the inner side of the holding portion than the other of the inserted portions in the extending direction of the holding portion.

In the hollow fiber membrane module according to an aspect of the present invention, the direction in which the restricting portion protrudes in the opening portion is along the extending direction of the holding portion, and the one insertion portion in which the opening portion is formed is held. The width in the extending direction of the portion is smaller than the width in the extending direction of the holding portion of the other insertion portion.

In the hollow fiber membrane module according to one aspect of the present invention, the restricting portion is formed so as to come into contact with the other inserting portion when the reinforcing member having the restricting portion is inserted into the other inserting portion. It is

In the hollow fiber membrane module according to one aspect of the present invention, the restricting portion is a plate-like portion extending along the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member having the restricting portion has a main body portion that is a portion that forms an outer peripheral surface that is a surface along the insertion direction of the reinforcing member, and the The main body has a shape that allows it to be inserted into a part of the insertion section.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member having no restricting portion is formed so as to be insertable into a part of the insertion portion and into the other insertion portion. .

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member is capable of contacting with the support section or opposing the support section with a gap therebetween in a state where the reinforcing member is inserted into the insertion section and attached to the connection section. formed.

In order to achieve the above object, a hollow fiber membrane module according to the present invention comprises a plurality of hollow fiber membranes and a support supporting the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned, The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. and a plurality of reinforcing members for reinforcing the connection between the holding part and the supporting part. At least one of the connection portions is provided with a plurality of insertion portions forming a gap into which the reinforcing member can be inserted, and the reinforcing member includes the reinforcing member Some of the plurality of insertion sections project the protrusions of the reinforcing member inserted into the insertion section to the outside of the insertion section. The other inserting portion is formed so that the reinforcing member including the projecting portion can be inserted.

In the hollow fiber membrane module according to an aspect of the present invention, a part of the insertion portion has a smaller width in the direction in which the protrusion protrudes in the open portion than the other insertion portion.

In the hollow fiber membrane module according to one aspect of the present invention, the open portion is formed at the end portion of the insertion portion on the rear side in the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the plurality of insertion portions are provided so as to face each other across the support portion connected to the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, the plurality of insertion portions are arranged side by side in the extending direction of the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, the connection section has two insertion sections, one of the two insertion sections is formed with the opening, and the opening is formed One of the inserted portions is provided closer to the inner side of the holding portion than the other of the inserted portions in the extending direction of the holding portion.

In the hollow fiber membrane module according to one aspect of the present invention, the direction in which the projecting portion protrudes in the opening portion is along the extending direction of the holding portion, and the one insertion portion in which the opening portion is formed is held. The width in the extending direction of the portion is smaller than the width in the extending direction of the holding portion of the other insertion portion.

In the hollow fiber membrane module according to one aspect of the present invention, the projecting portion is a plate-like portion extending along the insertion direction of the reinforcing member.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member has a main body portion that is a portion forming an outer peripheral surface that is a surface along the insertion direction of the reinforcing member, and the main body portion includes: It has a shape that can be inserted into a part of the insertion portion.

In the hollow fiber membrane module according to one aspect of the present invention, the reinforcing member is capable of contacting with the support section or opposing the support section with a gap therebetween in a state where the reinforcing member is inserted into the insertion section and attached to the connection section. formed.

According to the hollow fiber membrane module of the present invention, durability can be improved.

1 is a perspective view of a hollow fiber membrane module according to a first embodiment of the invention; FIG. 1 is a front view of a hollow fiber membrane module according to a first embodiment of the invention; FIG. FIG. 4 is a partially enlarged cross-sectional view showing an enlarged connection portion between the holding portion and the support portion in the hollow fiber membrane module according to the first embodiment of the present invention; FIG. 4 is another partially enlarged cross-sectional view showing an enlarged connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the first embodiment of the present invention. 1 is a perspective view of a reinforcing member of a hollow fiber membrane module according to a first embodiment of the invention; FIG. 1 is a diagram showing a schematic configuration of a hollow fiber membrane bundle in a hollow fiber membrane module according to a first embodiment of the invention; FIG. FIG. 4 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the first embodiment of the present invention; FIG. 4 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the first embodiment of the present invention; FIG. 4 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the first embodiment of the present invention; FIG. 5 is a partially enlarged cross-sectional view showing an enlarged connection portion to which a modification of the reinforcing member according to the first embodiment of the present invention is attached; FIG. 4 is a perspective view showing another modified example of the reinforcing member in the hollow fiber membrane module according to the first embodiment of the present invention; FIG. 6 is a partially enlarged cross-sectional view showing an enlarged connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 8 is another partially enlarged cross-sectional view showing an enlarged connection portion between the holding portion and the support portion in the hollow fiber membrane module according to the second embodiment of the present invention. FIG. 8 is a perspective view of another reinforcing member of the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 4 is a perspective view of one reinforcing member of the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 4 is a cross-sectional view schematically showing the relationship between one reinforcing member and one insertion portion of the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 10 is a cross-sectional view schematically showing the relationship between another reinforcing member and another insertion portion of the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 10 is a cross-sectional view schematically showing a state in which another reinforcing member of the hollow fiber membrane module according to the second embodiment of the present invention is mistakenly assembled to one insertion portion. FIG. 10 is a cross-sectional view schematically showing a state in which one reinforcing member of the hollow fiber membrane module according to the second embodiment of the present invention is erroneously attempted to be attached to the other insertion portion. FIG. 8 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 8 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 8 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the second embodiment of the present invention; FIG. 11 is a partially enlarged cross-sectional view showing an enlarged connecting portion between a holding portion and a support portion in a hollow fiber membrane module according to a third embodiment of the present invention; FIG. 11 is another partially enlarged cross-sectional view showing an enlarged connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the third embodiment of the present invention. FIG. 8 is a perspective view of a reinforcing member of a hollow fiber membrane module according to a third embodiment of the invention; FIG. 10 is a side view of a reinforcing member of a hollow fiber membrane module according to a third embodiment of the invention; FIG. 10 is a cross-sectional view of one insertion portion of a hollow fiber membrane module according to a third embodiment of the present invention; FIG. 11 is a cross-sectional view of the other insertion portion of the hollow fiber membrane module according to the third embodiment of the present invention; FIG. 11 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the third embodiment of the present invention; FIG. 11 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the third embodiment of the present invention; FIG. 11 is a partially enlarged cross-sectional view showing another connecting portion between the holding portion and the support portion in the hollow fiber membrane module according to the third embodiment of the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a hollow fiber membrane module 1 according to a first embodiment of the present invention, FIG. 2 is a front view of the hollow fiber membrane module 1, and FIG. FIG. 4 is a partially enlarged cross-sectional view showing an enlarged connection portion between the holding portion and the strut portion in the hollow fiber membrane module 1, and FIG. 5 is a cross-sectional view, and FIG. 5 is a perspective view of the reinforcing member 6 of the hollow fiber membrane module 1. FIG.

As shown in FIGS. 1 to 3, the hollow fiber membrane module 1 according to the first embodiment of the present invention includes a plurality of hollow fiber membranes 21 and a plurality of hollow fiber membranes so that the plurality of hollow fiber membranes 21 are aligned. and a support 3 for supporting 21 . The support 3 has a pair of holding portions 41 and 42, a pair of support portions 51 and 52, and at least one reinforcing member 6 and 7. As shown in FIG. The pair of holding parts 41 and 42 are members that hold the pair of ends 21A and 21B of the hollow fiber membrane 21, respectively. The pair of pillars 51 and 52 are members connected to the pair of holding parts 41 and 42, respectively, and supporting the pair of holding parts 41 and 42 so that the pair of holding parts 41 and 42 face each other. The reinforcing members 6 and 7 are members for reinforcing the connection between the holding portions 41 and 42 and the strut portions 51 and 52 . Each of the holding portions 41 and 42 is provided with a connection portion 30 to which the pair of support portions 51 and 52 are connectable. The reinforcement members 6 and 7 are provided in at least one of the connection portions 30 , and the reinforcement members 6 and 7 are formed so as to be inserted into the connection portion 30 and attached to the connection portion 30 . In addition, the reinforcing members 6 and 7 have at least one protruding portion 63 and 73 that protrudes toward the connecting portion 30 or the strut portions 51 and 52 when attached to the connecting portion 30 . The hollow fiber membrane module 1 will be specifically described below.

As shown in FIGS. 1 to 3, the hollow fiber membrane module 1 has a sheet-like processing section 2 formed by arranging in parallel hollow fiber membranes 21 extending in a predetermined extending direction. , the support 3 is a frame-shaped member that surrounds the processing section 2 and supports the processing section 2 . Ends 21A and 21B of the hollow fiber membranes 21 are held by a pair of holding parts 41 and 42, respectively, and the hollow fiber membranes 21 are arranged side by side in the direction in which the holding parts 41 and 42 extend. The strut portions 51 and 52 extend along the extending direction of the hollow fiber membrane 21, and the end portions 511 and 421 of the supporting portions 41 and 42 are attached to the ends 511 and 421 on one side of the holding portions 41 and 42, respectively. 512 are connected to each other, and the ends 521 and 522 of the support 52 are connected to the ends 412 and 422 on the other side of the holding portions 41 and 42, respectively. The end portions 411 , 412 , 421 , 422 of the holding portions 41 , 42 are provided with connection portions 30 to which the support portion 51 or the support portion 52 is connected and fixed.

The hollow fiber membrane module 1 is used, for example, for activated sludge treatment, and a plurality of hollow fiber membrane modules 1 are provided in a filtration device. In a filtration device provided with a plurality of hollow fiber membrane modules 1, for example, plate-like hollow fiber membrane modules 1 are accommodated side by side in a treatment water tank (which may be open or closed). Then, the liquid to be treated is introduced into the treated water tank, and the introduced liquid passes through the hollow fiber membrane module 1 to be filtered. The application of the hollow fiber membrane module 1 is not limited to the activated sludge treatment apparatus, and may be used in, for example, a large wastewater treatment apparatus or a water purification treatment apparatus.

The hollow fiber membrane module 1 has a plate-like shape as a whole as shown in FIGS. placed in Hereinafter, the vertical direction is defined as the Z direction, and the two directions orthogonal to each other in the horizontal plane are defined as the X direction and the Y direction. ) are sometimes simply referred to as “upper” and “lower”. In addition, the positional relationship of each part of the hollow fiber membrane module 1 in the posture of use will be described using the X direction, the Y direction, and the Z direction. The posture when the hollow fiber membrane module 1 is used does not have to be along the vertical direction, and may be another posture.

In the processing section 2, a plurality of hollow fiber membranes 21 linearly extending in the Z direction are arranged in the X direction. Thereby, the processing portion 2 is formed in a sheet shape (plate shape) extending along the ZX plane. That is, the Y direction is the thickness direction of the processing portion 2 . The hollow fiber membranes 21 are hollow fiber membranes similar to known hollow fiber membranes, and are formed in a cylindrical (tubular) shape with open ends 21A and 21B on both sides so that liquid can pass through the hollow fiber membranes 21. This liquid is filtered by being guided into the hollow fiber membrane 21 as a result.

More specifically, the processing section 2 is formed by arranging a plurality of hollow fiber membrane bundles 4 in parallel. The hollow fiber membrane bundle 4 is a member formed by bundling a plurality of hollow fiber membranes 21, as shown in FIG. The hollow fiber membrane bundle 4 has a pair of sealing frames 22, and the pair of sealing frames 22 bundle and hold a plurality of hollow fiber membranes 21 in close contact with each other. Specifically, the sealing frame 22 is a rectangular cylindrical member, and holds the ends 21A and 21B of the bundled hollow fiber membranes 21, respectively. A sealing portion 23 made of polyurethane or the like seals between the sealing frame 22 and the ends 21A and 21B of the hollow fiber membrane 21 . Specifically, the sealing portion 23 liquid-tightly contacts the outer peripheral surfaces of the end portions 21A and 21B of the hollow fiber membrane 10, and liquid-tightly contacts the inner peripheral surface of the sealing frame 22, thereby sealing. It seals between the frame 22 and the hollow fiber membrane 21 . The openings of the ends 21A and 21B of the hollow fiber membrane 21 are not sealed, and the hollow fiber membrane 21 communicates with the outside through the openings.

As shown in FIGS. 1 and 2, the support 3 is formed in a rectangular frame shape so as to surround the processing section 2 . In the support 3, the holding portions 41 and 42 extend along the X direction, and the strut portions 51 and 52 extend along the Z direction. The X-direction dimension within the frame of the support 3 is, for example, set equal to or slightly larger than the X-direction dimension of the processing section 2, and the Z-direction dimension within the frame of the support 3 is, for example, the Z-direction dimension of the processing section 2. is set equal to or slightly smaller than That is, the hollow fiber membrane 21 may be loosely stretched between the holding portions 41 and 42 .

As shown in FIGS. 3 and 4, the holding portions 41 and 42 have grooves 47 that are open in one direction perpendicular to the extending direction. The groove 47 extends in the direction in which the holding portions 41 and 42 extend. As shown in FIGS. 3 and 4, the groove 47 forms two spaces, a groove upper portion 47A and a groove lower portion 47B. In the groove 47, the upper groove portion 47A and the lower groove portion 47B overlap each other. Specifically, the upper groove portion 47A is a space having an opening of the groove 47 and communicates with the lower groove portion 47B. and forms a flow path as described later. One sealing frame 22 of the hollow fiber membrane bundle 4 is accommodated in the upper groove portion 47A of the groove 47 of the upper holding portion 41, and the upper groove portion 47A of the groove 47 of the lower holding portion 42 contains a hollow The other sealing frame 22 of the thread bundle 4 is accommodated. A plurality of sealing frames 22 are accommodated side by side in the groove upper portion 47A of the holding portion 41 , and a plurality of sealing frames 22 are accommodated side by side in the groove upper portion 47A of the holding portion 42 . A plurality of sealing frames 22 accommodated in the groove upper portions 47A of the holding portions 41 and 42 are fixed to the holding portions 41 and 42 with an adhesive. This adhesive material seals the groove lower portion 47B from the outside of the groove 47. As shown in FIG. As a result, the groove lower part 47B of the groove 47 of the holding parts 41 and 42 communicates with the opening of each hollow fiber membrane 21 of each hollow fiber membrane bundle 4, and the liquid filtered by the hollow fiber membrane 21 is allowed to pass through the groove lower part 47B. It is a flow path that can pass through.

Connection ports 410 are formed at both ends 411 and 412 in the X direction of the upper holding portion 41 so that a suction pump can be connected. An opening similar to the connection port 410 is formed at both ends 421 and 422 of the lower holding portion 42 in the X direction, and the opening is closed by providing a plug 9 (FIGS. 3 and 9). reference). The connection port 410 may not be formed in the holding portion 42 on the lower side. Further, the ends 411 and 412 of the upper holding portion 41 do not have to block the lower groove portion 47B of the groove 47 in the extending direction (X direction) by the wall portion 44A as shown in the drawing, and the wall portion 47B is formed in the lower groove portion 47B. The connection port 410 may be formed by not forming the portion 44A. Similarly, the ends 421 and 422 of the lower holding portion 42 may not block the lower groove portion 47B of the groove 47 in the extending direction (X direction) by the wall portion 44A as shown in the drawing. An opening similar to that of the connection port 410 may be formed by not forming the wall portion 44A. In this case, the plug 9 has a shape that follows the cross-sectional shape of the groove lower portion 47B and closes the opening. The end portion 412 side of the holding portion 41 is formed similarly to the end portion 411 side, and the end portion 422 side of the holding portion 42 is formed similarly to the end portion 421 side.

The struts 51 and 52 are tubular and have an internal space through which liquid can pass. The column portion 51 arranged on one side in the X direction connects the end portion 411 of the upper holding portion 41 and the end portion 421 of the lower holding portion 42 . The column portion 52 arranged on the other side in the X direction connects the end portion 412 of the upper holding portion 41 and the end portion 422 of the lower holding portion 42 . As a result, the groove lower portions 47B of the holding portions 41 and 42 and the internal spaces of the support portions 51 and 52 can selectively communicate with each other through the connection portion 30 as described later. In this embodiment, as will be described later with reference to FIGS. A connecting portion 30 is provided to enable communication between the groove lower portion 47B of the holding portion 41 and the internal space of the support portion 52 at the end portion 412 of the upper holding portion 41. there is On the other hand, as will be described later with reference to FIGS. A connecting portion 30 formed with a blocking wall 48 that blocks the flow is provided, and the end portion 422 of the lower holding portion 42 is a portion of the groove lower portion 47B of the holding portion 42 that communicates with the hollow fiber membrane module 21. A connection portion 30 is provided in which a blocking wall 48 is formed to block the internal space of the column portion 52 from the internal space of the column portion 52 . As a result, in the support 3, an L-shaped flow path extending from the bottom to the top formed by the lower holding section 42 and the support section 51 and a flow path along the upper holding section 41 are formed. there is Thus, two independent channels are formed in the support 3 .

The support 3 is configured as described above, and two independent L-shaped flow paths and a straight flow path are formed. A part of the liquid guided into the hollow fiber membranes 21 and filtered passes through the hollow fiber membranes 21 and reaches the upper holding section 41 by connecting a suction pump and sucking the inside of the groove lower portion 47B to reduce the pressure. It enters the groove lower portion 47B, flows toward the end portion 412 side in the groove lower portion 47B of the holding portion 41, and is discharged from the connection port 410. As shown in FIG. In addition, a suction pump is connected to the connection port 410 on the end portion 411 side of the upper holding portion 41, and the inside of the groove lower portion 47B is sucked to reduce the pressure, whereby the liquid that is guided into the hollow fiber membrane 21 and filtered. passes through the hollow fiber membrane 21 and enters the lower groove portion 47B of the lower holding portion 42, flows through the lower groove portion 47B of the holding portion 42 toward the end portion 421, and then flows in the X direction. It passes upward through the column portion 51 on one side, reaches the holding portion 41 on the upper side, and is discharged from the connection port 410 on the end portion 411 side.

In this embodiment, the holding portion 41 and the holding portion 42 have the same shape, and the support portion 51 and the support portion 52 have the same shape. In the support 3, the holding portions 41 and 42 are provided rotationally symmetrical about an axis parallel to the Y direction. For example, the holding portion 41 and the holding portion 42 are common members that are common to each other. The holding portion 41 and the holding portion 42 do not have to be common members that are common to each other. The form of communication between the holding parts 41 and 42 and the strut parts 51 and 52 in the support 3 and the form of discharge of the liquid filtered by the hollow fiber membrane 21 are not limited to those of the above-described configuration. It is sufficient that the liquid is filtered by the hollow fiber membrane 21 and discharged from the support 3 by sucking with the hollow fiber membrane 21 .

Here, the details of the connection structure between the holding portions 41 and 42 and the strut portions 51 and 52 in the support 3 will be described with reference to FIGS. As shown in FIG. 3 , the end portion 421 on one side in the X direction of the lower holding portion 42 and the lower end portion 512 of the support portion 51 are connected by the connecting portion 31 . Further, as shown in FIG. 7 , the end portion 411 on one side in the X direction of the upper holding portion 41 and the end portion 511 on the upper side of the support portion 51 are connected by the connecting portion 32 . As shown in FIG. 8, the end 412 of the upper holding portion 41 on the other side in the X direction and the upper end 521 of the support 52 are connected by the connecting portion 33, and as shown in FIG. In addition, the end portion 422 on the other side in the X direction of the lower holding portion 42 and the end portion 522 on the lower side of the support portion 52 are connected by the connecting portion 34 .

As shown in FIGS. 3 and 4 , the connection portion 31 of the end portion 421 of the holding portion 42 has a placement portion 43 in which the end portion 512 of the support portion 51 is placed, and a support portion 51 placed in the placement portion 43 . Wall portions 44A to 44D forming spaces (insertion portions 46A and 46B) adjacent to the supporting column portion 51 are provided facing each other, and the reinforcing members 6 and 7 are inserted into the insertion portions 46A and 46B forming the spaces. It is shaped to be mounted on Specifically, the connection portion 31 includes a placement portion 43 projecting upward in the Z direction, a pair of wall portions 44A and 44B facing each other in the X direction with the placement portion 43 interposed therebetween, and the placement portion 43. A pair of wall portions 44C and 44D are formed to sandwich and face each other in the Y direction. A predetermined space is provided between each of the pair of wall portions 44A and 44B and the placement portion 43, and the space in the X direction between the wall portion 44A on one side (outer side) in the X direction and the placement portion 43 is larger than the interval in the X direction between the wall portion 44B on the other side (inner side) in the X direction and the placement portion 43 . The placement portion 43 and the pair of wall portions 44A and 44B protrude from a common bottom portion 45, and the pair of wall portions 44A and 44B are formed higher than the placement portion 43 and have a larger projection dimension. is formed higher than the wall portion 44B. The wall portions 44C and 44D are part of a pair of side surfaces of the holding portion 42 extending in the longitudinal direction. The bottom portion 45 is a plate-like portion that faces the bottom wall 42A of the holding portion 42 with a gap therebetween. The bottom wall 42A is a portion that forms the bottom of the groove 47 in the holding portion 42 . The bottom portion 45 may be provided on the joint portion between the groove upper portion 47A and the groove lower portion 47B in the groove 47, or may be provided above or below the joint portion.

The arrangement portion 43 has a shape that can be inserted or press-fitted into the opening 512A of the end portion 512 of the support portion 51 . The arrangement portion 43 has a shape corresponding to the opening 512A of the support portion 51, and is, for example, a rectangular tubular shape. When the placement portion 43 is inserted into the opening 512A, the support portion 51, the wall portions 44A, 44C, 44D, and the bottom portion 45 form an insertion portion 46A, which is a space that opens upward in the Z direction, Similarly, the column portion 51, the wall portion 44B, the wall portion 44C, the wall portion 44D, and the bottom portion 45 form an insertion portion 46B that is a space that opens upward in the Z direction. A gap may or may not be formed between the column portion 51 and the pair of wall portions 44C and 44D. As described above, the outer insertion portion 46A has a larger X-direction dimension than the inner insertion portion 46B, and their Y-direction dimensions are the same or substantially the same. Thus, the insertion portion 46A and the insertion portion 46B have different sizes. Therefore, it is possible to prevent erroneous attachment of corresponding reinforcing members 6 and 7, which will be described later.

The reinforcing members 6 and 7 are formed to be inserted and attached to the inserting portions 46A and 46B, respectively. For example, depending on the difference in the X-direction dimensions of the insertion portions 46A and 46B, the reinforcement member 6 has a larger X-direction dimension than the reinforcement member 7, and their Y-direction dimensions and Z-direction dimensions are the same or substantially the same. ing. The reinforcing members 6 and 7 have the same shape, and the shape of the reinforcing member 6 will be described below. Unless otherwise specified, the reinforcing member 7 also has the same shape corresponding to the insertion portion 46B. shall have.

The reinforcing member 6 has a shape corresponding to the shape of the insertion portion 46A, and is shaped to be attached to the insertion portion 46A in a loose fit or intermediate fit. The reinforcement member 6 may be configured to be attached to the insert 46A in an interference fit. The reinforcing member 6 has, for example, a rectangular cylindrical shape, and as shown in FIG. It has a hollow portion 61 forming it, and has an outer cylinder portion 62 in the shape of a square cylinder that defines the hollow portion 61 . Further, the reinforcing member 6 has a plate-like partition portion 64 that partitions the hollow portion 61 into two spaces. The partition part 64 extends, for example, in the inserting direction of the reinforcing member 6 and extends along the ZX plane. The hollow portion 61 is formed in a through-hole shape with both ends in the Z direction open. In a state in which the reinforcing member 6 is attached to the insertion portion 46A, the outer cylinder portion 62 includes a plate portion 62A facing the wall portion 44A, a plate portion 62B facing the strut portion 51, and a plate portion facing the wall portion 44C. 62C and a plate portion 62D facing the wall portion 44D.

Two protrusions 63, which are portions protruding toward the side opposite to the hollow portion 61, are provided on surfaces 620A to 620D facing the outside of each of the plate portions 62A to 62D. A protrusion 63 formed on the surface 620A protrudes toward the wall 44A and is formed to face the wall 44A with a gap or to contact the wall 44A. The projecting portion 63 formed on the surface 620</b>B protrudes toward the column portion 51 and is formed to face the column portion 51 with a gap therebetween or to come into contact with the column portion 51 . The protrusions 63 formed on the surfaces 620C and 620D protrude toward the wall portions 44C and 44D, respectively, so as to face the wall portions 44C and 44D with a gap therebetween, or to contact the wall portions 44C and 44D. formed. The projections 63 of the plate portions 62A and 62B are formed symmetrically in the Y direction, and the projections 63 of the plate portions 62C and 62D are formed symmetrically in the X direction.

The X-direction dimension of the reinforcing member 6 including the protruding portion 63 is the same or substantially the same as the X-direction dimension of the insertion portion 46A (the distance between the wall portion 44A and the strut portion 51). The Y-direction dimension of the reinforcing member 6 including the protrusion 63 is the same or substantially the same as the Y-direction dimension of the insertion portion 46A (the distance between the wall portion 44C and the wall portion 44D). Thereby, the reinforcing member 6 is fitted into the insertion portion 46A as described above. The reinforcing member 6 is moved in the Z direction within the insertion portion 46A until it contacts the bottom portion 45, and is fitted into the insertion portion 46A. The X-direction dimension and Y-direction dimension of the reinforcing member 6 including the protrusion 63 are preferably about 0.1 to 3 mm smaller than the X-direction dimension and Y-direction dimension of the insertion portion 46A, and are about 0.5 to 2 mm. Smaller is more preferred. By setting the X-direction dimension and the Y-direction dimension of the reinforcing member 6 to be smaller than the corresponding dimensions of the insertion portion 46A in this way, it is possible to improve workability when inserting the reinforcement member 6 into the insertion portion 46A. .

Similarly to the reinforcing member 6, the reinforcing member 7 also has a hollow portion 71, an outer cylindrical portion 72, a projecting portion 73, and a partitioning portion corresponding to the hollow portion 61, the outer cylindrical portion 62, the projecting portion 63, and the partitioning portion 64, respectively. 74, and the reinforcing member 7 is shaped to be attached to the insert 46B in a loose or intermediate fit. The reinforcing member 7 may be shaped to be attached to the insert 46B in an interference fit. The outer cylinder portion 72 is formed by plate portions 72A to 72D corresponding to the plate portions 62A to 62D, respectively. It protrudes from 720A-720D. The projecting portion 73 of the reinforcing member 7 is formed so as to face or contact the wall portion 44B, the support portion 51, the wall portion 44C, or the wall portion 44D with a gap therebetween. The reinforcing member 7 is moved in the Z direction within the insertion portion 46B until it contacts the bottom portion 45, and is fitted into the insertion portion 46B. The X-direction dimension and Y-direction dimension of the reinforcing member 7 including the protrusion 73 are preferably about 0.1 to 3 mm smaller than the X-direction dimension and Y-direction dimension of the insertion portion 46B, and are about 0.5 to 2 mm. Smaller is more preferred. As a result, it is possible to improve workability when inserting the reinforcing member 7 into the insertion portion 46B.

In the state where the reinforcing members 6 and 7 are fitted into the insertion portions 46A and 46B as described above, the inside of the hollow portions 61 and 71, between the plate portions 62B and 72B and the strut portions 51 and 52, respectively, and the plate portion 62A , 72A and the walls 44A, 44B, and between the plates 62C, 62D, 72C, 72D and the walls 44C, 44D. The filler 8 is an adhesive made of, for example, a urethane-based adhesive, and has a first adhesive 81 , a second adhesive 82 and a third adhesive 83 . The first adhesive 81 is provided on the bottom portion 45 side, the second adhesive 82 is laminated on the processing portion 2 side of the first adhesive 81 , and the third adhesive 82 is laminated on the processing portion 2 side of the second adhesive 82 . of adhesive 83 are laminated. As shown in FIGS. 3 and 7 to 9, the second adhesive 82 is used as the sealing portion 23 of the hollow fiber membrane bundle 4 and for filling the groove upper portion 47A of the groove 47. The material 83 is attached to the joint portion of the hollow fiber membrane 21 with the sealing portion 23 . The third adhesive 83 is attached to protect the hollow fiber membranes 21, and is attached to prevent the root portion of the hollow fiber membranes 21 from being broken or damaged due to rocking.

The first adhesive 81 is more elastically deformable than the second adhesive 82 , and the second adhesive 82 is harder than the first adhesive 81 . Therefore, as will be described later, when the support 3 is deformed, the deformation of each part is easily allowed by the first adhesive 81, and the deformation of each part is suppressed by the second adhesive 82. there is This makes it easier to suppress damage to the base end portion 43A of the placement portion 43 and the end portion 512 of the support portion 51 . In addition, the third adhesive 83 is elastically deformable as easily as the first adhesive 81, and the third adhesive 83 flexibly holds the joint portion of the hollow fiber membrane 21 with the sealing portion 23. ing. In this embodiment, the first adhesive 81 and the third adhesive 83 are the same adhesive, but they may be different adhesives.

By forming the projecting portions 63 and 73 on the reinforcing members 6 and 7, gaps are formed between the surfaces 620A to 620D and the wall portion 44A, the support portion 51, the wall portion 44C, and the wall portion 44D facing each other. Thus, gaps are formed between the surfaces 720A to 720D and the wall portion 44B, the support portion 51, the wall portion 44C, and the wall portion 44D facing each other. Specifically, a gap is always formed between the portion of the surface 620B other than the projecting portion 63 and the support 51, and a gap is always formed between the portion of the surface 620A other than the projecting portion 63 and the wall portion 44A. , a gap is always formed between the portion of the surface 620C other than the protrusion 63 and the wall 44C, and a gap is always formed between the portion of the surface 620D other than the protrusion 63 and the wall 44D. Moreover, a gap is always formed between the portion of the surface 720B other than the protrusion 73 and the support 51, a gap is always formed between the portion of the surface 720A other than the protrusion 73 and the wall portion 44B, and the surface 720C. A gap is always formed between the portion of the surface 720D other than the protrusion 73 and the wall portion 44C, and a gap is always formed between the portion of the surface 720D other than the protrusion 73 and the wall portion 44D. Since the gaps are formed around the reinforcing members 6 and 7 in this way, the filler material can be placed around the reinforcing members 6 and 7 inserted into the insertion portions 46A and 46B, respectively, compared to a form in which no gap is formed. 8 is easily filled. Two protrusions 63 or two protrusions 73 are provided on each surface of the reinforcing members 6 and 7 . Therefore, two protrusions 63 or 73 are interposed between the surfaces of the reinforcing members 6 and 7 and the surfaces of the holding members 41 and 42 facing the reinforcing members 6 and 7. The gap around the reinforcing members 6 and 7 can be maintained at a certain level or more.

For example, when a force in the X direction acts on the hollow fiber membrane module 1, the rectangular frame-like support 3 tends to be distorted into a parallelogram shape. That is, the struts 51 and 52 try to swing with respect to the holding parts 41 and 42 . During such rocking, the placement portion 43 is particularly likely to be deformed, and the load tends to be concentrated on the base end portion 43A of the placement portion 43 .

Since the hollow fiber membrane module 1 is provided with the reinforcing members 6 and 7 , it is possible to suppress the swinging of the strut portions 51 and 52 with respect to the holding portions 41 and 42 . In addition, since the insertion portions 46A and 46B, which are spaces in which the reinforcing members 6 and 7 are provided, are formed in the connection portion 30, when the support portions 51 and 52 are assembled to the holding portions 41 and 42, respectively, A clearance can be ensured between the strut portions 51 and 52 and the wall portions 44A and 44B, and assembling efficiency can be improved.

In addition, since the reinforcing members 6 and 7 are provided with the protrusions 63 and 73, the filling material 8 can be easily filled as described above, and the reinforcing members 6 and 7, the struts 51 and 52, the wall portions 44A, Adhesiveness with 44B, 44C, and 44D can be improved. As a result, it is possible to prevent the struts 51 and 52 from easily swinging due to peeling of the filler 8 . That is, the distortion of the support 3 can be suppressed, the arrangement portion 43 and the like are less likely to be damaged, and the durability of the hollow fiber membrane module 1 can be improved.

In addition, since the reinforcing members 6 and 7 have partition portions 64 and 74 extending along the ZX plane and partitioning the hollow portions 61 and 71, respectively, the strut portions 51 and 52 swing with respect to the reinforcing members 6 and 7. Even if an external force due to movement is applied, deformation such as crushing of the hollow portions 61 and 71 is unlikely to occur, and the rigidity of the reinforcing members 6 and 7 can be increased, thereby suppressing the swinging of the strut portions 51 and 52. .

As described above, according to the hollow fiber membrane module 1 according to the embodiment of the present invention, the connection portion 30 is provided with the reinforcing members 6 and 7, and the reinforcing members 6 and 7 are provided with the protrusions 63 and 73. Durability can be improved by being formed.

In addition, since the reinforcing members 6 and 7 have the partition portions 64 and 74, the strength of the reinforcing members 6 and 7 is improved, and the durability of the hollow fiber membrane module 1 can be further improved.

As shown in FIGS. 7 to 9, the connection portions 32, 33, 34 have the same configuration as the connection portion 31, but form flow paths between the holding portion 41 and the strut portions 51, 52. The connecting portion 31 differs from the connecting portion 32 and the connecting portion 33 differs from the connecting portion 34 in the configuration or in the configuration forming the flow path between the holding portion 42 and the strut portions 51 , 52 . In the connecting portion 31 shown in FIGS. 3 and 4 described above, the portion of the lower groove portion 47B adjacent to the bottom portion 45 and the portion of the lower groove portion 47B adjacent to the portion of the lower groove portion 47B adjacent to the bottom portion 45 communicate with each other. there is Further, the arrangement portion 43 has a hollow portion 43C penetrating the base end portion 43A and the tip end portion 43B. is communicated with the groove lower portion 47B.

On the other hand, the connecting portion 32 provided at the end portion 411 of the holding portion 41 connected to the suction pump is, as shown in FIG. A blocking wall 48, which is a plate-shaped portion, is provided to block the portion of the lower portion 47B and the portion of the adjacent groove lower portion 47B. As a result, the liquid that has been filtered by the hollow fiber membranes 21 and has ascended the strut portion 51 does not flow into the groove lower portion 47B of the holding portion 41 that communicates with the hollow fiber membranes 21 , and is directed toward the connection port 410 . It should be noted that the connecting portion 32 may not be provided with the blocking wall 48 .

8, the connecting portion 33 provided at the other end portion 412 of the holding portion 41 connected to the suction pump has the same shape as the connecting portion 31 provided at the end portion 421 of the holding portion 42, as shown in FIG. It has become. Specifically, the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45 communicate with each other. The portion 43</b>C penetrates through the bottom portion 45 and communicates with the lower groove portion 47</b>B of the holding portion 41 , which is the channel from the hollow fiber membrane 21 . As a result, at the end portion 412 of the holding portion 41, the liquid that has been filtered by the hollow fiber membranes 21 and has risen through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 41 from the end portion 411 side to the end portion 412 side. flow toward the connection port 410 . For example, the connecting portion 31 and the connecting portion 33 are common members that are common to each other, and this common member is used as the connecting portion 31 or the connecting portion 33 by changing the mounting position and mounting direction. The connecting portion 31 and the connecting portion 33 do not have to be common members that are common to each other.

9, the connecting portion 34 provided at the end portion 422 of the lower holding portion 42 has the same shape as the connecting portion 32 provided at the end portion 411 of the holding portion 41. As shown in FIG. Specifically, a blocking wall 48, which is a plate-like portion that blocks the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45, is provided. is provided. Also, the connection port 410 of the end portion 422 of the holding portion 42 is closed by the plug 9 . As a result, the liquid filtered by the hollow fiber membranes 21 and descending through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membranes 21, and flows through the connecting port on the end portion 422 side of the holding portion 42. 410, the liquid descending down the strut portion 52 does not flow into the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membrane 21, and the end portion 422 side of the holding portion 42 does not flow. Outflow from the connection port 410 is prevented. For example, the connecting portion 32 and the connecting portion 34 are common members that are common to each other, and this common member is used as the connecting portion 32 or the connecting portion 34 by changing the mounting position and mounting direction. The connecting portion 32 and the connecting portion 34 do not have to be common members that are common to each other. It should be noted that the connection portion 34 may not be provided with the blocking wall 48 .

It should be noted that the present invention is not limited to the above-described embodiments, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the above-described first embodiment of the present invention, the reinforcing members 6 and 7 have wall-shaped partitions 64 and 74 along the insertion direction. Any other shape may be used as long as it generates a force that resists the swinging motion of the struts 51 and 52 . For example, the Z-direction dimension of the partition may be smaller than the Z-direction dimension of the entire reinforcing member, and the partition may be formed in a bar shape extending along the X direction. Moreover, the partition may extend in a direction inclined to the insertion direction, or may extend in a direction perpendicular to the insertion direction. Moreover, the reinforcing members 6 and 7 may have a plurality of partitions. In addition, for example, when the thickness of the outer cylindrical portion is sufficiently thick, when the strength of the material of the reinforcing member is high, when the size of the reinforcing member is small, or when the reinforcing member is difficult to deform sufficiently, the dividing portion may not be formed.

Further, instead of forming the partitions, as a modification, as shown in FIG. 10, a plurality of reinforcing members may be inserted into each of the insertion portions 46A and 46B. For example, a plurality of reinforcing members 10 may be arranged side by side along the Y direction in the insertion portion 46A, and a plurality of reinforcing members 11 may be arranged along the Y direction in the insertion portion 46B. In the illustrated example, two reinforcing members 10 are provided side by side in the Y direction in the insertion portion 46A, and a plurality of reinforcing members 11 are provided side by side in the Y direction in the insertion portion 46B. Like the reinforcing members 6 and 7, the reinforcing members 10 and 11 have hollow portions 101 and 111 and outer cylinder portions 102 and 112. The outer cylinder portions 102 and 112 are formed with protrusions 103 and 113. and no partition is formed. Projections 103 and 103 are not formed on surfaces of reinforcing members 10 and 11 that face other reinforcing members 10 and 11 . In this way, by arranging a plurality of separate reinforcing members 10 and 11 in the Y direction, compared to a configuration in which only one reinforcing member is provided, the Y direction dimension of the entire one reinforcing member 10 and 11 and the hollow portion 101 , 111 in the Y direction is reduced, and the rigidity of the reinforcing members 10 and 11 can be improved. As a result, the durability of the hollow fiber membrane module can be improved in the same manner as the configuration in which the partition is formed.

It should be noted that a plurality of reinforcing members having partitions as in the above-described first embodiment of the present invention may be arranged in the Y direction, and such a configuration further improves the durability of the hollow fiber membrane module. be able to.

Further, in the first embodiment of the present invention described above, the insertion portions 46A and 46B sandwich the strut portions 51 and 52 in the X direction. , the struts 51 and 52 may be sandwiched in the Y direction.

Further, in the first embodiment of the present invention described above, the reinforcing members 6 and 7 are tubular having the hollow portions 61 and 71, but the shape of the reinforcing member according to the present invention is limited to tubular. not. For example, the reinforcing member may be formed in a bottomed cylindrical shape (cup shape) with an opening on one side (upper or lower side) in the insertion direction, or may be formed in a block shape with no opening. good. Further, in the bottomed tubular reinforcing member, a recessed (non-penetrating) hollow portion is formed, and a partition portion may be provided to partition the hollow portion. Further, the hollow portion or recessed portion of the reinforcing member may be filled with a filler.

Further, in the first embodiment of the present invention described above, the placement portion 43 protrudes in a cylindrical shape and is inserted into the struts 51 and 52, but the placement portion has a shape that allows the struts to be placed. It's fine if you have it. For example, a groove or recess may be formed in the bottom portion 45 to allow the support column to be inserted, and such a groove or recess may be used as the placement portion. In other words, the placement portion may be any one that can position the supporting column. In addition, the strut portion may not be provided.

Further, as shown in FIG. 11, in the reinforcing member 6, a plurality of protrusions 63 may be provided at intervals in the insertion direction (in the Z direction), and the protrusions 63 may be provided three times on one surface. One or more may be provided. In addition, in the reinforcing member 6, the protruding portion 63 may extend obliquely in the insertion direction (Z direction), and may not extend linearly but may extend in a curved manner. Moreover, the protrusion 63 may extend in a direction perpendicular to the insertion direction. The same applies to the reinforcing members 7, 10, and 11 as well.

Also, all the connection portions 30 or any one connection portion 30 may be provided with only one of the insertion portion 46A and the insertion portion 46B. For example, one of the wall portion 44B and the wall portion 44A is in contact with the strut portions 51 and 52 connected to the connection portion 30 or opposed to the connection portion 30 with a gap, and the insertion portion 46A is connected to the connection portion 30. and only one of the insertion portion 46B can be formed.

Further, in the above-described first embodiment of the present invention, the reinforcing members 6 and 7 or the reinforcing members 10 and 11 are provided in all the connecting portions 30, but the connecting portions 30 where the load generated is small , the reinforcing members 6, 7 or the reinforcing members 10, 11 may be omitted. In addition, the connection portion 30 provided with the strong members 6 and 7 or the reinforcing members 10 and 11, the connection portion 30 provided with only one of the insertion portion 46A and the insertion portion 46B, and the strong members 6 and 7 Alternatively, connection portions may be provided selectively from the connection portions 30 where the reinforcing members 10 and 11 are not provided. Similarly, each connecting portion 30 may be provided with a reinforcing member selectively from among the reinforcing members 6 and 7 or the reinforcing members 10 and 11 . Moreover, a connection portion may be selectively provided from among the connection portions 31, 32, 33, and 34 in each connection portion.

A second embodiment of the present invention will be described below with reference to the drawings. The same reference numerals are used for the same members or members having the same functions as those of the hollow fiber membrane module 1 according to the first embodiment of the present invention described above, and the description thereof will be omitted.

12 and 13 are partial enlarged cross-sectional views showing enlarged connection portions between the holding portion and the support portion in the hollow fiber membrane module 201 according to the second embodiment of the present invention. 14 is a perspective view of the reinforcing member 206 of the hollow fiber membrane module 201 according to the second embodiment of the invention, and FIG. 15 is a perspective view of the hollow fiber membrane module 201 according to the second embodiment of the invention. 4 is a perspective view of a reinforcing member 207 of module 201. FIG.

As shown in FIGS. 1, 2 and 12, a hollow fiber membrane module 201 according to a second embodiment of the present invention includes a plurality of hollow fiber membranes 21 and a plurality of hollow membranes arranged in a row. A support 3 for supporting the thread membrane 21 is provided. The support body 3 has a pair of holding portions 41 and 42, a pair of strut portions 51 and 52, and at least one reinforcing member 206 and 207. As shown in FIG. The pair of holding parts 41 and 42 are members that hold the pair of ends 21A and 21B of the hollow fiber membrane 21, respectively. The pair of pillars 51 and 52 are members connected to the pair of holding parts 41 and 42, respectively, and supporting the pair of holding parts 41 and 42 so that the pair of holding parts 41 and 42 face each other. The reinforcing members 206 and 207 are members for reinforcing the connection between the holding portions 41 and 42 and the strut portions 51 and 52 . Each of the holding portions 41 and 42 is provided with a connection portion 30 to which the pair of support portions 51 and 52 are connectable. At least one of the connection portions 30 is formed with a plurality of insertion portions 46A and 46B forming gaps into which the reinforcing members 206 and 207 can be inserted. At least one (reinforcing member 207 ) of the plurality of reinforcing members 206 and 207 has a restricting portion 275 protruding in a direction intersecting the inserting direction of the reinforcing member 207 . A part of the plurality of insertion portions 46A and 46B (insertion portion 46B) is formed with an opening portion 49 for projecting the restricting portion 275 of the reinforcing member 7 inserted into the insertion portion 46B to the outside of the insertion portion 46B. The size is different from that of the other plurality of insertion portions 46A. The hollow fiber membrane module 1 will be specifically described below.

The details of the connection structure between the holding portions 41, 42 and the support portions 51, 52 in the support 3 will be described with reference to FIGS. As shown in FIG. 12 , the end portion 421 on one side in the X direction of the lower holding portion 42 and the lower end portion 512 of the support portion 51 are connected by the connection portion 31 . Further, as shown in FIG. 20 , the end portion 411 on one side in the X direction of the upper holding portion 41 and the end portion 511 on the upper side of the support portion 51 are connected by the connecting portion 32 . As shown in FIG. 21, the end 412 of the upper holding portion 41 on the other side in the X direction and the upper end 521 of the support 52 are connected by the connecting portion 33, and as shown in FIG. In addition, the end portion 422 on the other side in the X direction of the lower holding portion 42 and the end portion 522 on the lower side of the support portion 52 are connected by the connecting portion 34 .

As shown in FIGS. 12 and 13 , the connection portion 31 of the end portion 421 of the holding portion 42 has a placement portion 43 in which the end portion 512 of the support portion 51 is placed, and a support portion 51 placed in the placement portion 43 . Wall portions 44A to 44D are provided to form spaces (insertion portions 46A and 46B) adjacent to the strut portion 51 facing each other, and the reinforcing members 206 and 207 are inserted into the insertion portions 46A and 46B forming these spaces. are configured to be installed Specifically, the connection portion 31 includes a placement portion 43 projecting upward in the Z direction, a pair of wall portions 44A and 44B facing each other in the X direction with the placement portion 43 interposed therebetween, and the placement portion 43. A pair of wall portions 44C and 44D are formed to sandwich and face each other in the Y direction. A predetermined space is provided between each of the pair of wall portions 44A and 44B and the placement portion 43, and the space in the X direction between the wall portion 44A on one side (outer side) in the X direction and the placement portion 43 is larger than the interval in the X direction between the wall portion 44B on the other side (inner side) in the X direction and the placement portion 43 . The placement portion 43 and the pair of wall portions 44A and 44B protrude from a common bottom portion 45, and the pair of wall portions 44A and 44B are formed higher than the placement portion 43 and have a larger projection dimension. is formed higher than the wall portion 44B. The wall portions 44C and 44D are part of a pair of side surfaces of the holding portion 42 extending in the longitudinal direction. The bottom portion 45 is a plate-like portion that faces the bottom wall 42A of the holding portion 42 with a gap therebetween. The bottom wall 42A is a portion that forms the bottom of the groove 47 in the holding portion 42 . The bottom portion 45 may be provided on the joint portion between the groove upper portion 47A and the groove lower portion 47B in the groove 47, or may be provided above or below the joint portion.

The arrangement portion 43 has a shape that can be inserted or press-fitted into the opening 512A of the end portion 512 of the support portion 51 . The arrangement portion 43 has a shape corresponding to the opening 512A of the support portion 51, and is, for example, a rectangular tubular shape. When the placement portion 43 is inserted into the opening 512A, the support portion 51, the wall portions 44A, 44C, 44D, and the bottom portion 45 form an insertion portion 46A, which is a space that opens upward in the Z direction, Similarly, the column portion 51, the wall portion 44B, the wall portion 44C, the wall portion 44D, and the bottom portion 45 form an insertion portion 46B that is a space that opens upward in the Z direction. A gap may or may not be formed between the column portion 51 and the pair of wall portions 44C and 44D. As described above, the outer insertion portion 46A has a larger X-direction dimension than the inner insertion portion 46B, and their Y-direction dimensions are the same or substantially the same. Thus, the insertion portion 46A and the insertion portion 46B have different sizes.

As described above, in the hollow fiber membrane module 201 according to the second embodiment of the present invention, the connection portion 31 is provided with the two insertion portions 46A and 46B. In addition, in the connecting portion 31, an insertion portion 46B having a small width in the extending direction is provided inside (on the side of the wall portion 44B) in the extending direction (X direction) of the holding portion 42. direction), an insertion portion 46A having a large width in the extending direction is provided on the outside (on the side of the wall portion 44A). Further, as will be described later, the insertion portion 46B is formed with an open portion 49 through which the restricting portion 275 of the reinforcing member 207 is guided.

The reinforcing members 206 and 207 are formed to be inserted and attached to the insertion portions 46A and 46B, respectively. 207 is provided. The reinforcing member 206 is shaped to be attached to the insert 46A in a loose or intermediate fit. The reinforcing member 206 may be configured to attach to the insert 46A in an interference fit. As also shown in FIG. 14, the reinforcing member 206 has a hollow portion 261 forming a space extending along the Z direction, which is the insertion direction of the reinforcing member 206 into the insertion portion 46A. It has an outer tube portion 262 in the shape of a square tube. Further, the reinforcing member 206 has a plate-like partition portion 264 that partitions the hollow portion 261 into two spaces. The partition 264 extends, for example, in the insertion direction of the reinforcing member 206 and extends along the ZX plane. The hollow portion 261 is formed in a through-hole shape that is open at both ends in the Z direction. The outer tube portion 262 has plate portions 262A, 262B, 262C, and 262D. In a state in which the reinforcing member 206 is attached to the insertion portion 46A, the plate portion 262A faces the wall portion 44A, the plate portion 262B faces the column portion 51, the plate portion 62C faces the wall portion 44C, and the plate portion 62D faces. is formed so as to face the wall portion 44D.

Two protrusions 263, which are portions protruding toward the side opposite to the hollow portion 261 side, are provided on each of the outwardly facing surfaces 2620A to 2620D of the plate portions 262A to 262D. A protrusion 263 formed on the surface 2620A protrudes toward the wall 44A and is formed so as to face the wall 44A with a gap therebetween or to come into contact with the wall 44A. The protrusion 263 formed on the surface 2620</b>B protrudes toward the support pillar 51 and is formed to face the support 51 with a gap therebetween or to come into contact with the support 51 . The protrusions 263 formed on the surfaces 2620C and 2620D protrude toward the wall portions 44C and 44D, respectively, and face the wall portions 44C and 44D with a gap therebetween, or contact the wall portions 44C and 44D. formed. The projections 263 of the plate portions 262A and 262B are formed symmetrically in the Y direction, and the projections 263 of the plate portions 262C and 262D are formed symmetrically in the X direction.

As also shown in FIG. 15, the reinforcing member 207 has a restricting portion 275, and forms an outer peripheral surface 271A along the insertion direction (Z direction) of the reinforcing member 207 into the insertion portion 46B. It has a body portion 271 which is a portion. The main body portion 271 has a shape that allows it to be inserted into the insertion portion 46B, and is shaped so that it can be attached to the insertion portion 46B in a loose fit or an intermediate fit. The body portion 271 may be shaped to attach to the insert 46B in an interference fit. The body portion 271 has, for example, a rectangular cylindrical shape. Specifically, the main body portion 271 includes a hollow portion 273 forming a space extending along the Z direction, which is the direction in which the reinforcing member 207 is inserted into the insertion portion 46B, and a rectangular cylindrical outer portion defining the hollow portion 273. and a cylindrical portion 272 . Further, the main body portion 271 has a plate-like partition portion 274 that partitions the hollow portion 273 into two spaces. The partition part 274 extends, for example, in the insertion direction of the reinforcing member 207 and extends along the ZX plane. The hollow portion 273 is formed in a through-hole shape that is open at both ends in the Z direction. The outer cylindrical portion 272 has plate portions 272A, 272B, 272C, and 272D, and forms an outer peripheral surface 271A in the shape of a rectangular cylindrical surface extending parallel or substantially parallel to the Z direction. In a state in which the reinforcing member 207 is attached to the insertion portion 46B, the plate portion 272A faces the wall portion 44B, the plate portion 272B faces the strut portion 51, the plate portion 272C faces the wall portion 44C, and the plate portion 272D faces the wall portion 44C. is formed so as to face the wall portion 44D. Outward facing surfaces 2720A, 2720B, 2720C, and 2720D of the plate portions 272A, 272B, 272C, and 272D form an outer peripheral surface 271A.

Two protrusions 278 are provided on each surface 2720A to 2720D of the plate portions 272A to 272D, similarly to the reinforcing member 206. As shown in FIG. A protrusion 278 formed on the surface 2720A protrudes toward the wall 44B and is formed to face the wall 44B with a gap therebetween or to contact the wall 44B. The protrusion 278 formed on the surface 2720</b>B protrudes toward the support 51 and is formed to face the support 51 with a gap therebetween or to come into contact with the support 51 . The protrusions 78 formed on the surfaces 2720C and 2720D protrude toward the wall portions 44C and 44D, respectively, and face the wall portions 44C and 44D with a gap therebetween or contact the wall portions 44C and 44D. formed. In the plate portions 272A and 272B, the protrusions 278 are formed symmetrically in the Y direction, and in the plate portions 272C and 272D, the protrusions 278 are formed symmetrically in the X direction.

The reinforcing member 7 specifically has two restricting portions 275 . For example, as shown in FIG. 15, the restricting portion 275 is formed in a plate shape extending along the inserting direction of the reinforcing member 207 into the inserting portion 46B. protrudes along the direction perpendicular to the The restricting portion 275 is provided on the upper side, which is the rear side in the insertion direction, of the surface 2720A. The restricting portion 275 has, for example, a shape in which parts of the plate portions 272C and 272D on the upper side in the Z direction are extended so as to protrude from the plate portion 272A. That is, the reinforcing member 207 has a lower narrow portion 276 in which the restricting portion 275 is not provided, and an upper wide portion 277 in which the X-direction dimension is increased by providing the restricting portion 275. there is As will be described later, in a state in which the reinforcing member 207 is inserted into the inserting portion 46B and the lower end of the reinforcing member 207 is in contact with the bottom portion 45, the restricting portion 275 is accommodated in the open portion 49 of the inserting portion 46B. is formed so as to protrude from the insertion portion 46B. In the illustrated example, the restricting portion 275 extends to the upper end 271B of the main body portion 271, but the restricting portion 275 does not have to reach the upper end 271B of the main body portion 271. Further, the shape of the restricting portion 275 is not limited to a plate shape, and may be any shape that can be accommodated in the open portion 49, and may be other shapes such as a bar shape or a block shape. Moreover, the restricting portion 275 may not be formed at the end portion of the surface 2720A on the side of the surfaces 2720C and 2720D, and may be formed inside the surface 2720A.

In the state where the reinforcing members 206 and 7 are fitted into the insertion portions 46A and 46B as described above, the inside of the hollow portions 261 and 273, between the plate portions 262B and 272B and the strut portions 51 and 52, respectively, and the plate portion 262A , 272A and the walls 44A and 44B, between the plate portions 262C and 272C and the wall portion 44C, and between the plate portions 262D and 272D and the wall portion 44D. be done. The filler 8 is an adhesive made of, for example, a urethane-based adhesive, and has a first adhesive 81 , a second adhesive 82 and a third adhesive 83 . The first adhesive 81 is provided on the bottom portion 45 side, the second adhesive 82 is laminated on the processing portion 2 side of the first adhesive 81 , and the third adhesive 82 is laminated on the processing portion 2 side of the second adhesive 82 . of adhesive 83 are laminated. 12 and 20 to 22, the second adhesive 82 is used as the sealing portion 23 of the hollow fiber membrane bundle 4 and for filling the groove upper portion 47A of the groove 47. The adhesive 83 is attached to the joint portion of the hollow fiber membrane 21 with the sealing portion 23 . The third adhesive 83 is attached to protect the hollow fiber membranes 21, and is attached to prevent the root portion of the hollow fiber membranes 21 from being broken or damaged due to rocking.

The first adhesive 81 is more elastically deformable than the second adhesive 82 , and the second adhesive 82 is harder than the first adhesive 81 . Therefore, as will be described later, when the support 3 is deformed, the deformation of each part is easily allowed by the first adhesive 81, and the deformation of each part is suppressed by the second adhesive 82. there is This makes it easier to suppress damage to the base end portion 43A of the placement portion 43 and the end portion 512 of the support portion 51 . In addition, the third adhesive 83 is elastically deformable as easily as the first adhesive 81, and the third adhesive 83 flexibly holds the joint portion of the hollow fiber membrane 21 with the sealing portion 23. ing. In this embodiment, the first adhesive 81 and the third adhesive 83 are the same adhesive, but they may be different adhesives.

Next, the mounting state in which the reinforcing members 206 and 207 are inserted into the insertion portions 46A and 46B respectively will be described in detail with reference to FIGS. FIG. 16 is a cross-sectional view schematically showing the relationship between the reinforcing member 207 and the insertion portion 46B, and FIG. 17 is a cross-sectional view schematically showing the relationship between the reinforcing member 206 and the insertion portion 46A. FIG. 18 is a cross-sectional view schematically showing how the reinforcing member 206 was mistakenly attached to the insertion portion 46B, and FIG. 19 schematically illustrates how the reinforcing member 207 was mistakenly attached to the insertion portion 46A. It is a sectional view showing. The orientation of the reinforcing members 206 and 207 in the hollow fiber membrane module 201 is determined by fitting them into the insertion portions 46A and 46B. will be described.

As shown in FIG. 16, the X-direction dimension of the narrow portion 276 of the reinforcing member 207 is width L1, and the X-direction dimension of the wide portion 277 is width L2. Let H be the Z-direction dimension of the narrow portion 276 of the body portion 271 where the restricting portion 275 is not formed. Also, as shown in FIG. 17, the X-direction dimension of the entire reinforcing member 206 is width L3. Note that the widths L1 to L3 are dimensions including the protrusions 263 and 278 as well. As shown in FIG. 16, the width of the insertion portion 46B is W1, and the depth of the insertion portion 46B is D1. Further, as shown in FIG. 17, the width of the insertion portion 46A is W2, and the depth of the insertion portion 46A is D2. The width of the insertion portion 46B is the distance between the support 51 and the wall portion 44B in the X direction, and the depth of the insertion portion 46B is the projection dimension of the wall portion 44B from the bottom portion 45 in the Z direction. Further, the width of the insertion portion 46A is the distance between the column portion 51 and the wall portion 44A in the X direction, and the depth of the insertion portion 46A is the projection dimension of the wall portion 44A from the bottom portion 45 in the Z direction.

As shown in FIGS. 12 and 16, the wall portion 44B is formed with an opening 49 that opens the insertion portion 46B in the X direction, and the wall portion 44B is lower than the other walls 44C and 44D of the insertion portion 46B. It's becoming The open portion 49 is formed so that the restricting portion 275 of the reinforcing member 207 can be inserted in the insertion direction, and is also open to the open side (upper side) of the insertion portion 46B. Specifically, the open portion 49 is formed at the end of the wall portion 44B on the open side of the insertion portion 46B. Further, the open portion 49 is formed over the entire width of the wall portion 44B in the Y direction, but may not be formed over the entire width of the wall portion 44B in the Y direction. Since the width L1 of the narrow portion 276 is equal to or less than the width W1 of the insertion portion 46B, the narrow portion 276 of the reinforcing member 207 can be inserted into the insertion portion 46B. The width L1 of the narrow portion 276 may be larger than the width W1 of the insertion portion 46B as long as the body portion 271 can be inserted into the insertion portion 46B. On the other hand, although the width L2 of the wide portion 277 from which the restricting portion 275 protrudes is larger than the width W1 of the insertion portion 46B, the height H of the narrow portion 276 is equal to or greater than the depth D1 of the insertion portion 46B. , the restricting portion 275 is accommodated in the open portion 49 without interfering with the wall portion 44B, and the reinforcing member 207 is inserted into the insertion portion 46B. When the reinforcing member 207 is inserted into the insertion portion 46B and attached, the restricting portion 275 protrudes outside the insertion portion 46B in the X direction through the open portion 49 . On the other hand, as shown in FIG. 17, the width L3 of the reinforcement member 206 is equal to or less than the width W2 of the insertion portion 46A, so that the reinforcement member 206 can be inserted into the insertion portion 46A. The width L3 of the reinforcing member 206 may be larger than the width W2 of the inserting portion 46A as long as the reinforcing member 206 can be inserted into the inserting portion 46A. Note that FIG. 13 shows a cross section of the reinforcing member 207 on the side of the narrow portion 276 .

Next, a case where the reinforcing members 206 and 207 are erroneously assembled will be described. As shown in FIG. 18, since the width L3 of the reinforcing member 206 is larger than the width W1 of the insertion portion 46B, the reinforcing member 206 cannot be inserted into the insertion portion 46B, thereby suppressing erroneous assembly. be done. Further, as shown in FIG. 19, the width L1 of the narrow portion 276 of the reinforcing member 207 is smaller than the width W2 of the insertion portion 46A, so that the narrow portion 276 can be inserted into the insertion portion 46A. However, since the height H of the narrow portion 276 is smaller than the depth D2 of the insertion portion 46A and the width L2 of the wide portion 277 of the restricting portion 275 is larger than the width W2 of the insertion portion 46A, the reinforcing While inserting the member 207 into the insertion portion 46A, the restricting portion 275 contacts the wall portion 44A. As a result, even if the body portion 271 can be inserted into the insertion portion 46A, the insertion of the reinforcing member 207 into the insertion portion 46A is restricted. Therefore, the entire reinforcing member 207 cannot be inserted into the insertion portion 46A, thereby suppressing erroneous assembly.

The width L1 of the main body portion 271 of the reinforcing member 207 is preferably about 0.1 to 3 mm smaller than the width W1 of the insertion portion 46B, and more preferably about 0.5 to 2 mm smaller. Similarly, the width L3 of the reinforcing member 206 is preferably about 0.1 to 3 mm smaller than the width W2 of the insertion portion 46A, and more preferably about 0.5 to 2 mm smaller. In addition, the Y-direction dimensions of the main body portion 271 of the reinforcing member 207 and the reinforcing member 206 are preferably about 0.1 to 3 mm smaller than the insertion portions 46B and 46A, and more preferably about 0.5 to 2 mm smaller. . By setting the X-direction dimension and the Y-direction dimension of the main body portion 271 of the reinforcement member 206 and the reinforcement member 207 to be smaller than the corresponding dimensions of the insertion portions 46A and 46B, respectively, the reinforcement members 206 and 207 are arranged in the insertion portion. Workability when inserting into 46A and 46B can be improved.

By forming projections 263 and 278 on reinforcing members 206 and 207, gaps are formed between surfaces 2620A to 2620D and wall portions 44A, strut portions 51, wall portions 44C, and wall portions 44D facing each other. Thus, gaps are formed between the surfaces 2720A to 2720D and the wall portion 44B, the support portion 51, the wall portion 44C, and the wall portion 44D facing each other. Specifically, a gap is always formed between the portion of the surface 2620B other than the protrusion 263 and the support 51, and a gap is always formed between the portion of the surface 2620A other than the protrusion 263 and the wall portion 44A. , a gap is always formed between the portion of the surface 2620C other than the protrusion 263 and the wall portion 44C, and a gap is always formed between the portion of the surface 2620D other than the protrusion 263 and the wall portion 44D. In addition, a gap is always formed between the portion of the surface 2720B other than the protrusion 278 and the support 51, a gap is always formed between the portion of the surface 2720A other than the protrusion 278 and the wall portion 44B, and the surface 2720C. A gap is always formed between the portion of the surface 2720D other than the protrusion 278 and the wall portion 44C, and a gap is always formed between the portion of the surface 2720D other than the protrusion 278 and the wall portion 44D. Since the gaps are formed around the reinforcing members 206 and 207 in this manner, the filling material can be removed more easily around the reinforcing members 206 and 207 inserted into the insertion portions 46A and 46B, respectively, compared to a form in which no gap is formed. 8 is easily filled. Two protrusions 263 or two protrusions 278 are provided on each surface of the reinforcing members 206 and 207 . Therefore, two projections 263 or projections 278 are interposed between the surfaces of the reinforcing members 206 and 207 and the surfaces of the holding members 41 and 42 facing the surfaces of the reinforcing members 206 and 207. The gap around the reinforcing members 206 and 207 can be maintained at a constant or more.

For example, when a force in the X direction acts on the hollow fiber membrane module 201, the rectangular frame-shaped support 3 tends to be distorted into a parallelogram shape. That is, the struts 51 and 52 try to swing with respect to the holding parts 41 and 42 . During such rocking, the placement portion 43 is particularly likely to be deformed, and the load tends to be concentrated on the base end portion 43A of the placement portion 43 .

Since the hollow fiber membrane module 201 is provided with the reinforcing members 206 and 207, it is possible to suppress the swinging of the support members 51 and 52 with respect to the holding portions 41 and 42. FIG. In addition, since the insertion portions 46A and 46B, which are spaces in which the reinforcing members 206 and 207 are provided, are formed in the connecting portion 30, when the support portions 51 and 52 are assembled to the holding portions 41 and 42, respectively, A clearance can be ensured between the strut portions 51 and 52 and the wall portions 44A and 44B, and assembling efficiency can be improved.

In addition, since the reinforcing members 206 and 207 are provided with the protrusions 263 and 278, the filling material 8 can be easily filled as described above, and the reinforcing members 206 and 207, the struts 51 and 52, the wall portions 44A, Adhesiveness with 44B, 44C, and 44D can be improved. As a result, it is possible to prevent the struts 51 and 52 from easily swinging due to peeling of the filler 8 . That is, the distortion of the support 3 can be suppressed, the arrangement portion 43 and the like are less likely to be damaged, and the durability of the hollow fiber membrane module 201 can be improved.

In addition, the reinforcement members 206 and 207 have partition portions 264 and 274 extending along the ZX plane and partitioning the hollow portions 261 and 271, respectively. Even if an external force due to movement is applied, the hollow portions 261 and 271 are unlikely to be deformed such that they are crushed. .

As described above, according to the hollow fiber membrane module 201 according to the second embodiment of the present invention, the reinforcing members 206 and 207 are provided in the connecting portion 30, and the reinforcing members 206 and 207 improve the durability. be able to. In addition, since the reinforcing member 207 has the restricting portion 275, it is possible to prevent the reinforcing member 207 from being erroneously inserted into the insertion portion 46A, thereby improving the ease of assembly.

Moreover, the durability of the hollow fiber membrane module 201 can be improved by forming the protrusions 263 and 278 on the reinforcing members 206 and 207 .

In addition, since the reinforcing members 206 and 207 have the dividing portions 264 and 274, the strength of the reinforcing members 206 and 207 is improved, and the durability of the hollow fiber membrane module 201 can be further improved.

As shown in FIGS. 20 to 22, the connecting portions 32, 33, and 34 have the same configuration as the connecting portion 31, but form flow paths between the holding portion 41 and the strut portions 51 and 52. The connecting portion 31 differs from the connecting portion 32 and the connecting portion 33 differs from the connecting portion 34 in the configuration or in the configuration forming the flow path between the holding portion 42 and the strut portions 51 , 52 . 12 and 13, the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45 communicate with each other. there is Further, the arrangement portion 43 has a hollow portion 43C penetrating the base end portion 43A and the tip end portion 43B. is communicated with the groove lower portion 47B.

On the other hand, the connecting portion 32 provided at the end portion 411 of the holding portion 41 connected to the suction pump is, as shown in FIG. A blocking wall 48, which is a plate-shaped portion, is provided to block the portion of the lower portion 47B and the portion of the adjacent groove lower portion 47B. As a result, the liquid that has been filtered by the hollow fiber membranes 21 and has ascended the strut portion 51 does not flow into the groove lower portion 47B of the holding portion 41 that communicates with the hollow fiber membranes 21 , and is directed toward the connection port 410 . It should be noted that the connecting portion 32 may not be provided with the blocking wall 48 .

21, the connection portion 33 provided at the other end portion 412 of the holding portion 41 connected to the suction pump has the same configuration as the connection portion 31 provided at the end portion 421 of the holding portion 42, as shown in FIG. It has become. Specifically, the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45 communicate with each other. The portion 43</b>C penetrates through the bottom portion 45 and communicates with the lower groove portion 47</b>B of the holding portion 41 , which is the channel from the hollow fiber membrane 21 . As a result, at the end portion 412 of the holding portion 41, the liquid that has been filtered by the hollow fiber membranes 21 and has risen through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 41 from the end portion 411 side to the end portion 412 side. flow toward the connection port 410 . For example, the connecting portion 31 and the connecting portion 33 are common members that are common to each other, and this common member is used as the connecting portion 31 or the connecting portion 33 by changing the mounting position and mounting direction. The connecting portion 31 and the connecting portion 33 do not have to be common members that are common to each other.

22, the connecting portion 34 provided at the end portion 422 of the lower holding portion 42 has the same shape as the connecting portion 32 provided at the end portion 411 of the holding portion 41. As shown in FIG. Specifically, a blocking wall 48, which is a plate-like portion that blocks the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45, is provided. is provided. Also, the connection port 410 of the end portion 422 of the holding portion 42 is closed by the plug 9 . As a result, the liquid filtered by the hollow fiber membranes 21 and descending through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membranes 21, and flows through the connecting port on the end portion 422 side of the holding portion 42. 410, the liquid descending down the strut portion 52 does not flow into the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membrane 21, and the end portion 422 side of the holding portion 42 does not flow. Outflow from the connection port 410 is prevented. For example, the connecting portion 32 and the connecting portion 34 are common members that are common to each other, and this common member is used as the connecting portion 32 or the connecting portion 34 by changing the mounting position and mounting direction. The connecting portion 32 and the connecting portion 34 do not have to be common members that are common to each other. It should be noted that the connection portion 34 may not be provided with the blocking wall 48 .

The present invention is not limited to the above-described second embodiment of the present invention, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the above-described second embodiment of the present invention, the insertion portions 46A and 46B sandwich the strut portions 51 and 52 in the X direction. , the struts 51 and 52 may be sandwiched in the Y direction. In this case, the opening 49 of the insertion portion 46B is similarly formed on the wall 44C or the wall 44D, and the restricting portion 275 corresponds to the opening 49 on the surface 2720C or 2720D of the main body portion 271 of the reinforcing member 207. are formed in the same way. Further, even when the insertion portion 46A and the insertion portion 46B sandwich the strut portions 51 and 52 in the X direction, the insertion portion 46B may be formed outside the insertion portion 46A. In this case, the restricting portion 275 protrudes outside the insertion portion 46B in the opposite direction to the case shown in FIG. 12 described above.

In addition, in the above-described second embodiment of the present invention, the wall portion 44B of the insertion portion 46B into which the reinforcing member 207 having the restricting portion 275 is inserted is replaced by the wall portion 44B into which the reinforcing member 206 having no restricting portion is inserted. Although the wall height is formed lower than the wall portion 44A of the insertion portion 46A and the opening portion 49 is formed, the form of the opening portion 49 is not limited to such a form. For example, the wall height D1 of the wall portion 44B is made larger than the height H of the narrow portion 276 of the reinforcing member 207, and the wall portion 44B is formed with a slit-like notch or the like corresponding to the restricting portion 275 so as to form an open portion. 49 may be formed.

In addition, in the above-described second embodiment of the present invention, the restricting portion 275 is formed in a plate shape, but the restricting portion may be formed in a rod shape as long as it protrudes from the main body. It may be in the shape of a block, and its shape is not limited.

Further, in the second embodiment of the present invention described above, the reinforcing members 206 and 207 have wall-shaped partitions 264 and 274 along the insertion direction. Any other shape may be used as long as it generates a force that resists the swinging motion of the struts 51 and 52 . For example, the Z-direction dimension of the partition may be smaller than the Z-direction dimension of the entire reinforcing member, and the partition may be formed in a bar shape extending along the X direction. Moreover, the partition may extend in a direction inclined to the insertion direction, or may extend in a direction perpendicular to the insertion direction. Also, the reinforcing members 206 and 207 may have a plurality of partitions. In addition, for example, when the thickness of the outer cylindrical portion is sufficiently thick, when the strength of the material of the reinforcing member is high, when the size of the reinforcing member is small, or when the reinforcing member is difficult to deform sufficiently, the dividing portion may not be formed.

Further, in the second embodiment of the present invention, the reinforcing members 206, 207 are cylindrical having the hollow portions 261, 273, but the shape of the reinforcing member according to the present invention is limited to cylindrical. not. For example, the reinforcing member may be formed in a bottomed cylindrical shape (cup shape) with an opening on one side (upper or lower side) in the insertion direction, or may be formed in a block shape with no opening. good. Further, in the bottomed tubular reinforcing member, a recessed (non-penetrating) hollow portion is formed, and a partition portion may be provided to partition the hollow portion. Further, the hollow portion or recessed portion of the reinforcing member may be filled with a filler.

Further, in the second embodiment of the present invention described above, the arrangement portion 43 protrudes in a cylindrical shape and is inserted into the struts 51 and 52, but the arrangement portion has a shape that allows the struts to be arranged. It's fine if you have it. For example, a groove or recess may be formed in the bottom portion 45 to allow the support column to be inserted, and such a groove or recess may be used as the placement portion. In other words, the placement portion may be any one that can position the supporting column. In addition, the strut portion may not be provided.

Further, in the reinforcing member, a plurality of protrusions may be provided at intervals in the insertion direction (in the Z direction), or three or more protrusions may be provided on one surface. In addition, in the reinforcing member, the protruding portion may extend obliquely in the insertion direction (Z direction), or may not extend linearly but may extend curvedly. Also, the protrusion may extend in a direction orthogonal to the insertion direction. Also, the reinforcing member may not have a protrusion. In this case, each surface of the outer cylinder portion is formed so as to come into contact with or be close to the corresponding wall portion or strut portion of the insertion portion in the same manner as the protrusions described above.

Further, each of the connection portions 30 or any one connection portion 30 may be provided with two or more insertion portions 46A and two or more insertion portions 46B. Further, when two or more insertion sections 46A are provided, the plurality of insertion sections 46A may not all have the same size. The portions 46B need not all be the same size.

In addition, in the above-described second embodiment of the present invention, the reinforcing members 206 and 207 are provided in all the connecting portions 30, but the connecting portions 30 where the load generated is small do not include the reinforcing members 206 and 207. may not be provided. In addition, each connection portion includes a connection portion 30 provided with the strong members 206 and 207, a connection portion 30 provided with only one of the insertion portion 46A and the insertion portion 46B, and a connection portion not provided with the strong members 206 and 207. 30 may be selectively provided with a connecting portion. Further, a connecting portion may be selectively provided among the connecting portions 31, 32, 33, and 34. FIG.

A third embodiment of the present invention will be described below with reference to the drawings. The same reference numerals are used for the same members or members having the same functions as those of the hollow fiber membrane module 1 according to the first embodiment of the present invention described above, and the description thereof will be omitted.

23 and 24 are partial enlarged cross-sectional views showing enlarged connection portions between the holding portion and the support portion in the hollow fiber membrane module 301 according to the third embodiment of the present invention. 25 is a perspective view of the reinforcing member 306 of the hollow fiber membrane module 301 according to the third embodiment of the invention, and FIG. 26 is a hollow fiber membrane module according to the third embodiment of the invention. 27 is a cross-sectional view of an insertion portion 46B of a hollow fiber membrane module 301 according to a third embodiment of the present invention, and FIG. 28 is a third embodiment of the present invention. is a cross-sectional view of an insertion portion 46A of the hollow fiber membrane module 301 according to the embodiment of FIG.

As shown in FIG. 23, a hollow fiber membrane module 301 according to the third embodiment of the present invention includes a plurality of hollow fiber membranes 21 and a plurality of hollow fiber membranes 21 arranged in a row. and a support 3 for supporting. The support 3 has a pair of holding portions 41 and 42 , a pair of strut portions 51 and 52 and at least one reinforcing member 306 . The pair of holding parts 41 and 42 are members that hold the pair of ends 21A and 21B of the hollow fiber membrane 21, respectively. The pair of pillars 51 and 52 are members connected to the pair of holding parts 41 and 42, respectively, and supporting the pair of holding parts 41 and 42 so that the pair of holding parts 41 and 42 face each other. The reinforcement member 306 is a member for reinforcing the connection between the holding portions 41 and 42 and the support portions 51 and 52 . Each of the holding portions 41 and 42 is provided with a connection portion 30 to which the pair of support portions 51 and 52 are connectable. At least one of the connection portions 30 has a plurality of insertion portions 46A and 46B forming a gap into which the reinforcing member 306 can be inserted. The reinforcing member 306 has a protrusion 365 that protrudes in a direction intersecting the inserting direction of the reinforcing member 306 . A part (insertion portion 46B) of the plurality of insertion portions 46A and 46B is formed with an opening portion 49 that allows the protruding portion 365 of the reinforcing member 306 inserted into the insertion portion 46B to protrude outside the insertion portion 46B. The other insertion portion 46A is formed so that the reinforcing member 306 including the projecting portion 365 can be inserted. The hollow fiber membrane module 1 will be specifically described below.

As shown in FIGS. 23 and 24 , the connection portion 31 of the end portion 421 of the holding portion 42 has a placement portion 43 in which the end portion 512 of the support portion 51 is placed, and a support portion 51 placed in the placement portion 43 . Wall portions 44A to 44D are provided to form spaces (insertion portions 46A and 46B) adjacent to the strut portion 51 facing each other, and the reinforcing member 306 is inserted into the insertion portions 46A and 46B that form these spaces. formed to be attached. Specifically, the connection portion 31 includes a placement portion 43 projecting upward in the Z direction, a pair of wall portions 44A and 44B facing each other in the X direction with the placement portion 43 interposed therebetween, and the placement portion 43. A pair of wall portions 44C and 44D are formed to sandwich and face each other in the Y direction. A predetermined space is provided between each of the pair of wall portions 44A and 44B and the placement portion 43, and the space in the X direction between the wall portion 44A on one side (outer side) in the X direction and the placement portion 43 is larger than the interval in the X direction between the wall portion 44B on the other side (inner side) in the X direction and the placement portion 43 . The placement portion 43 and the pair of wall portions 44A and 44B protrude from a common bottom portion 45, and the pair of wall portions 44A and 44B are formed higher than the placement portion 43 and have a larger projection dimension. is formed higher than the wall portion 44B. The wall portions 44C and 44D are part of a pair of side surfaces of the holding portion 42 extending in the longitudinal direction. The bottom portion 45 is a plate-like portion that faces the bottom wall 42A of the holding portion 42 with a gap therebetween. The bottom wall 42A is a portion that forms the bottom of the groove 47 in the holding portion 42 . The bottom portion 45 may be provided on the joint portion between the groove upper portion 47A and the groove lower portion 47B in the groove 47, or may be provided above or below the joint portion.

The arrangement portion 43 has a shape that can be inserted or press-fitted into the opening 512A of the end portion 512 of the support portion 51 . The arrangement portion 43 has a shape corresponding to the opening 512A of the support portion 51, and is, for example, a rectangular tubular shape. When the placement portion 43 is inserted into the opening 512A, the support portion 51, the wall portions 44A, 44C, 44D, and the bottom portion 45 form an insertion portion 46A, which is a space that opens upward in the Z direction, Similarly, the column portion 51, the wall portion 44B, the wall portion 44C, the wall portion 44D, and the bottom portion 45 form an insertion portion 46B that is a space that opens upward in the Z direction. A gap may or may not be formed between the column portion 51 and the pair of wall portions 44C and 44D. As described above, the outer insertion portion 46A has a larger X-direction dimension than the inner insertion portion 46B, and their Y-direction dimensions are the same or substantially the same. Thus, the insertion portion 46A and the insertion portion 46B have different sizes.

As described above, in the hollow fiber membrane module 301 according to the third embodiment, the connection portion 31 is provided with the two insertion portions 46A and 46B. In addition, in the connecting portion 31, an insertion portion 46B having a small width in the extending direction is provided inside (on the side of the wall portion 44B) in the extending direction (X direction) of the holding portion 42. direction), an insertion portion 46A having a large width in the extending direction is provided on the outside (on the side of the wall portion 44A). Further, as will be described later, the insertion portion 46B is formed with an opening 49 through which the projecting portion 365 of the reinforcing member 306 is guided.

As shown in FIG. 25, the reinforcing member 306 has a protruding portion 365, and has an outer peripheral surface 361A along the insertion direction (Z direction) of the reinforcing member 306 into the insertion portions 46A and 46B. It has a body portion 361 which is a portion to be formed. The reinforcing member 306 is formed to be inserted into and attached to the insertion portions 46A and 46B, and the reinforcing member 306 is provided in both the insertion portions 46A and 46B. Specifically, the reinforcement member 306 has a shape such that it can be attached to the insertion portion 46A in a loose fit or an intermediate fit at the portion where the projecting portion 365 is provided. The reinforcement member 306 may be shaped to be attached to the insertion portion 46A with an interference fit at the portion where the protrusion 365 is provided. Further, the reinforcing member 306 has a shape in which the main body portion 361 is attached to the insertion portion 46B in a loose fit or an intermediate fit. The reinforcement member 306 may be shaped at the body portion 361 to be attached to the insert portion 46B in an interference fit. As also shown in FIG. 25, the reinforcing member 306 defines a hollow portion 363 forming a space extending along the Z direction, which is the direction in which the reinforcing member 306 is inserted into the insertion portions 46A and 46B, and the hollow portion 363. and an outer cylindrical portion 362 having a rectangular cylindrical shape. In addition, the body portion 361 has a plate-like partition portion 364 that partitions the hollow portion 363 into two spaces. The partition 364 extends, for example, in the insertion direction of the reinforcing member 306 and along the ZX plane. The hollow portion 363 is formed in a through-hole shape that is open at both ends in the Z direction. The outer cylinder portion 362 has plate portions 362A, 362B, 362C, and 362D, and forms an outer peripheral surface 361A in the shape of a rectangular cylinder extending parallel or substantially parallel to the Z direction. As shown in FIG. 24, when the reinforcing member 306 is attached to the insertion portions 46A and 46B, the plate portions 362A face the wall portions 44A and 44B, and the plate portions 362B face the strut portion 51. The plate portions 362C and 362D are formed to face the wall portions 44C and 44D or the wall portions 44D and 44C, respectively. The reinforcing member 306 can be inserted into the insertion portion 46A in a posture in which the protruding portions 365 are oriented in any direction in the X direction, but as shown in FIGS. It is preferably attached to the inserts 46A, 46B so as to extend laterally.

Two protrusions 368, which are portions protruding toward the side opposite to the hollow portion 363, are provided on each of the outwardly facing surfaces 3620A to 3620D of the plate portions 362A to 362D. With the reinforcing member 306 attached to the insertion portion 46B, the protrusion 368 formed on the surface 3620A protrudes toward the wall portion 44B and faces the wall portion 44B with a gap therebetween. is formed to contact the With the reinforcing member 306 attached to the insertion portion 46B, the protrusion 368 formed on the surface 3620B protrudes toward the support pillar 51 and faces the support 51 with a gap therebetween. is formed to contact the 24, when the reinforcing member 306 is attached to the insertion portion 46A, the protrusion 368 formed on the surface 3620B protrudes toward the support pillar 51 and faces the support 51 with a gap therebetween. or in contact with the strut portion 51 . When the reinforcing member 306 is attached to the insertion portion 46A or the insertion portion 46B, the protrusions 368 formed on the surfaces 3620C and 3620D protrude toward the wall portions 44C and 44D or the wall portions 44D and 44C, respectively. It is formed to face 44D or wall portions 44D and 44C with a gap, or to contact wall portions 44C and 44D or wall portions 44D and 44C. The projections 368 of the plate portions 362A and 362B are formed symmetrically in the Y direction, and the projections 368 of the plate portions 362C and 362D are formed symmetrically in the X direction.

The reinforcing member 306 specifically has two protrusions 365 . For example, as shown in FIG. 25, the projecting portion 365 is formed in a plate shape extending along the insertion direction of the reinforcing member 306 into the insertion portions 46A and 46B, and extends from the surface 3620A of the plate portion 362A to the reinforcing member 306. It protrudes along the direction orthogonal to the insertion direction. The projecting portion 365 is provided on the upper side, which is the rear side in the insertion direction, of the surface 3620A. The projecting portion 365 has, for example, a shape in which parts of the plate portions 362C and 362D on the upper side in the Z direction are extended so as to protrude from the plate portion 362A. That is, the reinforcing member 306 has a lower narrow portion 366 in which no projecting portion 365 is provided, and an upper wide portion 367 in which the X-direction dimension is increased due to the provision of the projecting portion 365. there is As will be described later, when the reinforcing member 306 is inserted into the inserting portion 46B and the lower end of the reinforcing member 306 is in contact with the bottom portion 45, the projecting portion 365 is accommodated in the open portion 49 of the inserting portion 46B. is formed so as to protrude from the insertion portion 46B. As will be described later, when the reinforcing member 306 is inserted into the inserting portion 46A and the lower end of the reinforcing member 306 is in contact with the bottom portion 45, the entire reinforcing member 306 is accommodated within the inserting portion 46A. is formed to be As shown in FIGS. 23 and 24, in this mounting state of the reinforcing member 306, the tip 365A of the projecting portion 365 is formed so as to face or contact the wall portion 44A with a gap therebetween. .

In the illustrated example, the projecting portion 365 extends to the upper end 361B of the main body portion 361, but the projecting portion 365 does not have to reach the upper end 361B of the main body portion 361. Further, the shape of the protruding portion 365 is not limited to a plate shape, and may be any shape that can be accommodated in the open portion 49, and may be other shapes such as a rod shape or a block shape. Also, the projecting portion 365 may not be formed at the end of the surface 3620A on the surfaces 3620C and 3620D side, and may be formed inside the surface 3620A.

As described above, the reinforcement member 306 is inserted into the insertion portion 46A so that the plate portion 362B faces the support column portion 51 side and the plate portion 362A faces the wall portion 44A side. At this time, the entire reinforcing member 306 is inserted into the insertion portion 46A. Further, the reinforcing member 306 is inserted into the insertion portion 46B so that the plate portion 362B faces the column portion 51 side and the plate portion 362A faces the wall portion 44B side. At this time, only the narrow portion 366 of the body portion 361 of the reinforcing member 306 is inserted into the insertion portion 46B.

In the state where the reinforcing member 306 is fitted into the insertion portions 46A and 46B as described above, the inside of the hollow portion 363, the space between the plate portion 362B and the strut portion 51, and the space between the plate portion 362A and the wall portions 44A and 44B. A filler 8 is provided between each of the plate portions 362C, 362D and the wall portions 44C, 44D or between the plate portions 44D, 44C. The filler 8 is an adhesive made of, for example, a urethane-based adhesive, and has a first adhesive 81 , a second adhesive 82 and a third adhesive 83 . The first adhesive 81 is provided on the bottom portion 45 side, the second adhesive 82 is laminated on the processing portion 2 side of the first adhesive 81 , and the third adhesive 82 is laminated on the processing portion 2 side of the second adhesive 82 . of adhesive 83 are laminated. As shown in FIGS. 23 and 29 to 31, the second adhesive 82 is used as the sealing portion 23 of the hollow fiber membrane bundle 4 and for filling the groove upper portion 47A of the groove 47. The adhesive 83 is attached to the joint portion of the hollow fiber membrane 21 with the sealing portion 23 . The third adhesive 83 is attached to protect the hollow fiber membranes 21, and is attached to prevent the root portion of the hollow fiber membranes 21 from being broken or damaged due to rocking.

The first adhesive 81 is more elastically deformable than the second adhesive 82 , and the second adhesive 82 is harder than the first adhesive 81 . Therefore, as will be described later, when the support 3 is deformed, the deformation of each part is easily allowed by the first adhesive 81, and the deformation of each part is suppressed by the second adhesive 82. . This makes it easier to suppress damage to the base end portion 43A of the placement portion 43 and the end portion 512 of the support portion 51 . In addition, the third adhesive 83 is elastically deformable as easily as the first adhesive 81, and the third adhesive 83 flexibly holds the joint portion of the hollow fiber membrane 21 with the sealing portion 23. ing. In this embodiment, the first adhesive 81 and the third adhesive 83 are the same adhesive, but they may be different adhesives.

Next, the mounting state in which the reinforcing member 306 is inserted and mounted in each of the insertion portions 46A and 46B will be described in detail with reference to FIGS. The orientation of the reinforcing member 306 in the hollow fiber membrane module 301 is determined by fitting it into the insertion portions 46A and 46B. explain.

As shown in FIG. 26, the X-direction dimension of the narrow portion 366 of the reinforcing member 306 (the X-direction dimension of the body portion 361) is defined as a width L11, and the X-direction dimension of the wide portion 367 (including the body portion 361 and the projecting portion 365) is L11. X-direction dimension) is defined as width L12. A height H is the dimension in the Z direction of the narrow portion 366 of the body portion 361 where the projecting portion 365 is not formed. The widths L11 and L12 are dimensions including the protrusion 368 as well. As shown in FIG. 27, the width of the insertion portion 46B is W1, and the depth of the insertion portion 46B is D1. Further, as shown in FIG. 28, the width of the insertion portion 46A is W2, and the depth of the insertion portion 46A is D2. The width of the insertion portion 46B is the distance between the support 51 and the wall portion 44B in the X direction, and the depth of the insertion portion 46B is the projection dimension of the wall portion 44B from the bottom portion 45 in the Z direction. Further, the width of the insertion portion 46A is the distance between the column portion 51 and the wall portion 44A in the X direction, and the depth of the insertion portion 46A is the projection dimension of the wall portion 44A from the bottom portion 45 in the Z direction.

As shown in FIGS. 23 and 27, the wall portion 44B is formed with an opening 49 that opens the insertion portion 46B in the X direction, and the wall portion 44B is lower than the other walls 44C and 44D of the insertion portion 46B. It's becoming The open portion 49 is formed so that the projecting portion 365 of the reinforcing member 306 can be inserted in the insertion direction, and is also open to the open side (upper side) of the insertion portion 46B. Specifically, the open portion 49 is formed at the end of the wall portion 44B on the open side of the insertion portion 46B. Further, the open portion 49 is formed over the entire width of the wall portion 44B in the Y direction, but may not be formed over the entire width of the wall portion 44B in the Y direction. Since the width L11 of the narrow portion 366 is equal to or less than the width W1 of the insertion portion 46B, the narrow portion 366 of the reinforcing member 306 can be inserted into the insertion portion 46B. The width L11 of the narrow portion 366 may be larger than the width W1 of the insertion portion 46B as long as the body portion 361 can be inserted into the insertion portion 46B. On the other hand, although the width L12 of the wide portion 367 from which the projecting portion 365 protrudes is larger than the width W1 of the insertion portion 46B, the height H of the narrow portion 366 is equal to or greater than the depth D1 of the insertion portion 46B. , the protruding portion 365 is accommodated in the open portion 49 without interfering with the wall portion 44B, and the reinforcing member 306 is inserted into the insertion portion 46B.

On the other hand, since the width L12 of the wide portion 367 is equal to or less than the width W2 of the insertion portion 46A, the wide portion 367 of the reinforcing member 306 can also be inserted into the insertion portion 46A. can accommodate the entire The depth D2 of the insertion portion 46A should be greater than the height H of the narrow portion 366, and the reinforcing member 306 is part of the wide portion 367 (part of the projecting portion 365) in the insertion portion 46A. ) may be accommodated. The width L12 of the reinforcing member 306 may be larger than the width W2 of the inserting portion 46A as long as the reinforcing member 306 can be inserted into the inserting portion 46A at the wide portion 367 thereof.

The width L11 of the main body portion 361 of the reinforcing member 306 is preferably about 0.1 to 3 mm smaller than the width W1 of the insertion portion 46B, and more preferably about 0.5 to 2 mm smaller. Similarly, the width L12 of the wide portion 367 of the reinforcing member 306 is preferably about 0.1 to 3 mm smaller than the width W2 of the insertion portion 46A, more preferably about 0.5 to 2 mm smaller. The Y-direction dimension of the body portion 361 of the reinforcing member 306 is preferably about 0.1 to 3 mm smaller than the insertion portions 46B and 46A, more preferably about 0.5 to 2 mm smaller. By setting the X-direction dimension and the Y-direction dimension of the main body portion 361 of the reinforcing member 306 to be smaller than the corresponding dimensions of the insertion portions 46A and 46B, respectively, the reinforcement member 306 is inserted into the insertion portions 46A and 46B. workability can be improved.

By forming the projecting portion 368 on the reinforcing member 306, gaps are formed between the surfaces 3620B to 3620D in the insertion portion 46A and the supporting column portion 51, the wall portion 44C, and the wall portion 44D facing each other. At 46B, gaps are formed between the surfaces 3620A, 3620B, 3620D, and 3620C and the wall 44B, support 51, wall 44C, and wall 44D facing each other. Specifically, in the insertion portion 46A, a gap is always formed between the portion of the surface 3620B other than the projection portion 368 and the support portion 51, and between the portion of the surface 3620C other than the projection portion 368 and the wall portion 44C. A gap is always formed, and a gap is always formed between the portion of the surface 3620D other than the protrusion 368 and the wall portion 44D. In addition, in the insertion portion 46B, a gap is always formed between the portion of the surface 3620B other than the protrusion 368 and the support portion 51, and a gap is always formed between the portion of the surface 3620A other than the protrusion 368 and the wall portion 44B. A gap is always formed between the portion of the surface 3620C other than the protrusion 368 and the wall 44D, and a gap is always formed between the portion of the surface 3620D other than the protrusion 368 and the wall 44C. Since the gap is formed around the reinforcing member 306 in this manner, the filling material 8 is filled around the reinforcing member 306 inserted into the insertion portions 46A and 46B, respectively, compared to a form in which no gap is formed. It's getting easier. Two protrusions 368 are provided on each surface of the reinforcing member 306 . Therefore, two projections 368 are interposed between each surface of the reinforcing member 306 and each surface of the holding members 41 and 42 facing each surface of the reinforcing member 306, so that the gap around the reinforcing member 306 is reduced. It is possible to maintain a certain interval.

For example, when a force in the X direction acts on the hollow fiber membrane module 301, the rectangular frame-shaped support 3 tends to be distorted into a parallelogram shape. That is, the struts 51 and 52 try to swing with respect to the holding parts 41 and 42 . During such rocking, the placement portion 43 is particularly likely to be deformed, and the load tends to be concentrated on the base end portion 43A of the placement portion 43 .

Since the hollow fiber membrane module 301 is provided with the reinforcing member 306 , it is possible to suppress the swinging motion of the struts 51 and 52 with respect to the holding portions 41 and 42 . In addition, since the insertion portions 46A and 46B, which are spaces in which the reinforcing member 306 is provided, are formed in the connecting portion 30, when the support portions 51 and 52 are assembled to the holding portions 41 and 42, respectively, the support portions 46A and 46B are formed. A clearance can be ensured between 51, 52 and the wall portions 44A, 44B, and the ease of assembly can be improved.

In addition, since the reinforcing member 306 is formed with the protrusion 368, the filling material 8 can be easily filled as described above, and the reinforcing member 306, the struts 51 and 52, and the walls 44A, 44B, 44C, and 44D can improve the adhesion of As a result, it is possible to prevent the struts 51 and 52 from easily swinging due to peeling of the filler 8 . That is, the distortion of the support 3 can be suppressed, the arrangement portion 43 and the like are less likely to be damaged, and the durability of the hollow fiber membrane module 301 can be improved.

In addition, since the reinforcing member 306 has the partitioning portion 364 that extends along the ZX plane and partitions the hollow portion 361, even if an external force is applied to the reinforcing member 306 due to swinging of the strut portions 51 and 52, the hollow portion is The rigidity of the reinforcing member 306 can be increased without causing deformation such as crushing of the pillars 361, thereby suppressing the rocking motion of the struts 51 and 52. As shown in FIG.

As described above, according to the hollow fiber membrane module 301 according to the third embodiment of the present invention, the connecting portion 30 is provided with the reinforcing member 306, and the reinforcing member 306 can improve the durability. Further, the reinforcing member 306 has a main body portion 361 having a dimension that allows insertion into the insertion portion 46B, and a main body portion 361 and a projecting portion 365 that have a dimension that allows insertion into the insertion portion 46A. , the reinforcing member 306 provided in the insertion portions 46A and 46B can be shared, and the cost can be reduced.

Moreover, the durability of the hollow fiber membrane module 301 can be improved by forming the protrusions 368 on the reinforcing member 306 .

In addition, since the reinforcing member 306 has the dividing portion 364, the strength of the reinforcing member 306 is improved, and the durability of the hollow fiber membrane module 301 can be further improved.

As shown in FIGS. 29 to 31, the connection portions 32, 33, 34 have the same configuration as the connection portion 31, but form flow paths between the holding portion 41 and the strut portions 51, 52. The connecting portion 31 differs from the connecting portion 32 and the connecting portion 33 differs from the connecting portion 34 in the configuration or in the configuration forming the flow path between the holding portion 42 and the strut portions 51 , 52 . 23 and 24, the portion of the lower groove portion 47B adjacent to the bottom portion 45 and the portion of the lower groove portion 47B adjacent to the portion of the lower groove portion 47B adjacent to the bottom portion 45 communicate with each other. there is Further, the arrangement portion 43 has a hollow portion 43C penetrating the base end portion 43A and the tip end portion 43B. is communicated with the groove lower portion 47B.

On the other hand, the connecting portion 32 provided at the end portion 411 of the holding portion 41 connected to the suction pump is, as shown in FIG. A blocking wall 48, which is a plate-shaped portion, is provided to block the portion of the lower portion 47B and the portion of the adjacent groove lower portion 47B. As a result, the liquid that has been filtered by the hollow fiber membranes 21 and has ascended the strut portion 51 does not flow into the groove lower portion 47B of the holding portion 41 that communicates with the hollow fiber membranes 21 , and is directed toward the connection port 410 . It should be noted that the connecting portion 32 may not be provided with the blocking wall 48 .

30, the connection portion 33 provided at the other end portion 412 of the holding portion 41 connected to the suction pump has the same configuration as the connection portion 31 provided at the end portion 421 of the holding portion 42, as shown in FIG. It has become. Specifically, the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45 communicate with each other. The portion 43</b>C penetrates through the bottom portion 45 and communicates with the lower groove portion 47</b>B of the holding portion 41 , which is the channel from the hollow fiber membrane 21 . As a result, at the end portion 412 of the holding portion 41, the liquid that has been filtered by the hollow fiber membranes 21 and has risen through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 41 from the end portion 411 side to the end portion 412 side. flow toward the connection port 410 . For example, the connecting portion 31 and the connecting portion 33 are common members that are common to each other, and this common member is used as the connecting portion 31 or the connecting portion 33 by changing the mounting position and mounting direction. The connecting portion 31 and the connecting portion 33 do not have to be common members that are common to each other.

31, the connecting portion 34 provided at the end portion 422 of the lower holding portion 42 has the same shape as the connecting portion 32 provided at the end portion 411 of the holding portion 41. As shown in FIG. Specifically, a blocking wall 48, which is a plate-like portion that blocks the portion of the groove lower portion 47B adjacent to the bottom portion 45 and the portion of the groove lower portion 47B adjacent to the portion of the groove lower portion 47B adjacent to the bottom portion 45, is provided. is provided. Also, the connection port 410 of the end portion 422 of the holding portion 42 is closed by the plug 9 . As a result, the liquid filtered by the hollow fiber membranes 21 and descending through the hollow fiber membranes 21 flows through the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membranes 21, and flows through the connecting port on the end portion 422 side of the holding portion 42. 410, the liquid descending down the strut portion 52 does not flow into the groove lower portion 47B of the holding portion 42 communicating with the hollow fiber membrane 21, and the end portion 422 side of the holding portion 42 does not flow. Outflow from the connection port 410 is prevented. For example, the connecting portion 32 and the connecting portion 34 are common members that are common to each other, and this common member is used as the connecting portion 32 or the connecting portion 34 by changing the mounting position and mounting direction. The connecting portion 32 and the connecting portion 34 do not have to be common members that are common to each other. It should be noted that the connection portion 34 may not be provided with the blocking wall 48 .

It should be noted that the present invention is not limited to the above-described third embodiment of the present invention, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. In the above-described third embodiment of the present invention, the insertion portion 46A and the insertion portion 46B sandwich the support portions 51 and 52 in the X direction. The portions 51 and 52 may be sandwiched in the Y direction. In this case, the opening 49 of the insertion portion 46B is similarly formed in the wall portion 44C or the wall portion 44D, and the protruding portion 65 corresponds to the opening 49 in the surface 3620C or surface 3620D of the main body portion 361 of the reinforcing member 306. are formed in the same way. Further, the reinforcing member 306 is attached to the inserting portion 46A in a posture facing away from the support members 51 and 52 with respect to the reinforcing member 306 attached to the inserting portion 46B, or in the same posture. Further, even when the insertion portion 46A and the insertion portion 46B sandwich the strut portions 51 and 52 in the X direction, the insertion portion 46B may be formed outside the insertion portion 46A. In this case, the protruding portion 65 protrudes outside the insertion portion 46B in the opposite direction to the case shown in FIG. 23 described above.

Further, in the third embodiment of the present invention described above, the wall portion 44B forming the insertion portion 46B having a smaller dimension in the X direction has a higher wall height than the wall portion 44A forming the insertion portion 46A having a larger dimension in the X direction. is formed low and the opening 49 is formed, but the form of the opening 49 is not limited to such a form. For example, the wall height D1 of the wall portion 44B is made larger than the height H of the narrow portion 366 of the reinforcing member 306, and the wall portion 44B is formed with a slit-like notch corresponding to the protruding portion 365 to form an open portion. 49 may be formed.

Further, in the above-described third embodiment of the present invention, the projecting portion 365 is formed in a plate-like shape, but the projecting portion may be in the form of a rod as long as it projects from the main body portion. or a frame shape, and the shape is not limited.

In addition, in the above-described third embodiment of the present invention, the reinforcing member 306 has the wall-like partitioning portion 364 along the insertion direction, but the partitioning portion that partitions the hollow portion is the strut portion 51, Other shapes may be used as long as they generate a force that opposes the rocking motion of 52 . For example, the Z-direction dimension of the partition may be smaller than the Z-direction dimension of the entire reinforcing member, and the partition may be formed in a bar shape extending along the X direction. Moreover, the partition may extend in a direction inclined to the insertion direction, or may extend in a direction perpendicular to the insertion direction. Also, the reinforcing member 306 may have a plurality of compartments. In addition, for example, when the thickness of the outer cylindrical portion is sufficiently thick, when the strength of the material of the reinforcing member is high, when the size of the reinforcing member is small, or when the reinforcing member is difficult to deform sufficiently, the dividing portion may not be formed.

Further, in the above-described third embodiment of the present invention, the reinforcing member 306 has a cylindrical shape having the hollow portion 361, but the shape of the reinforcing member according to the present invention is not limited to a cylindrical shape. For example, the reinforcing member may be formed in a bottomed cylindrical shape (cup shape) with an opening on one side (upper or lower side) in the insertion direction, or may be formed in a block shape with no opening. good. Further, in the bottomed tubular reinforcing member, a recessed (non-penetrating) hollow portion is formed, and a partition portion may be provided to partition the hollow portion. Further, the hollow portion or recessed portion of the reinforcing member may be filled with a filler.

Further, in the third embodiment of the present invention described above, the arranging portion 43 protrudes in a cylindrical shape and is inserted into the struts 51 and 52. It's fine if you have it. For example, a groove or recess may be formed in the bottom portion 45 to allow the support column to be inserted, and such a groove or recess may be used as the placement portion. In other words, the placement portion may be any one that can position the supporting column. In addition, the strut portion may not be provided.

Further, in the reinforcing member, a plurality of protrusions may be provided at intervals in the insertion direction (in the Z direction), or three or more protrusions may be provided on one surface. In addition, in the reinforcing member, the protruding portion may extend obliquely in the insertion direction (Z direction), or may not extend linearly but may extend curvedly. Also, the protrusion may extend in a direction orthogonal to the insertion direction. Also, the reinforcing member may not have a protrusion. In this case, each surface of the outer cylinder portion is formed so as to come into contact with or be close to the corresponding wall portion or strut portion of the insertion portion in the same manner as the protrusions described above.

Further, each of the connection portions 30 or any one connection portion 30 may be provided with two or more insertion portions 46A and two or more insertion portions 46B. Further, when two or more insertion sections 46A are provided, the plurality of insertion sections 46A may not all have the same size. The portions 46B need not all be the same size.

Further, in the above-described third embodiment of the present invention, the reinforcement member 306 is provided in all the connection portions 30, but the connection portion 30 where the load generated is small does not need to be provided with the reinforcement member 306. good too. In addition, each connection portion is selected from the connection portion 30 provided with the strong member 306, the connection portion 30 provided with only one of the insertion portion 46A and the insertion portion 46B, and the connection portion 30 not provided with the strong member 306. You may provide a connection part selectively. Further, a connecting portion may be selectively provided among the connecting portions 31, 32, 33, and 34. FIG.

Although the embodiments of the present invention have been described above, the present invention is not limited to the hollow fiber membrane modules according to the above-described embodiments of the present invention. including. Moreover, each configuration may be selectively combined as appropriate so as to achieve at least part of the above-described problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiment may be changed as appropriate according to the specific usage of the present invention.

DESCRIPTION OF SYMBOLS 1... Hollow fiber membrane module, 2... Processing part, 21... Hollow fiber membrane, 21A, 21B... End part, 22... Sealing frame, 23... Sealing part, 3... Support body, 30, 31, 32, 33, 34... Connection part 4... Hollow fiber membrane bundle 41, 42... Holding part 411, 412, 421, 422... End part 41A, 42A... Bottom wall 43... Arrangement part 43A... Base end part 43B... Tip portion 43C Hollow portion 44A to 44D Wall portion 45 Bottom portion 46A, 46B Insert portion 47 Groove 47A Groove upper portion 47B Groove lower portion 48 Blocking wall 49 Open portion 410... Connection port 51, 52... Strut part 511, 512, 521, 522... End part 512A... Opening 6, 7... Reinforcement member 61, 71... Hollow part 62, 72... Outer cylinder part, 62A ~ 62D, 72A to 72D... plate portion, 620A to 620D, 720A to 720D... surface, 63, 73... protrusion, 64, 74... division part, 8... filler, 81... first adhesive, 82... second 2 Adhesive 83 First Adhesive 9 Plug 10, 11 Reinforcing Member 101, 111 Hollow Part 102, 112 Outer Cylindrical Part 103, 113 Protruding Part 201 Hollow Fiber Membrane module 206, 207 Reinforcing member 261, 273 Hollow part 262, 272 Outer cylinder part 262A to 262D, 272A to 272D Plate part 2620A to 2620D, 2720A to 2720D Surface 263, 278 Protrusions 264, 274 Partitioning portion 271 Body portion 271A Peripheral surface 271B Upper end 275 Regulating portion 276 Narrow portion 277 Wide portion 301 Hollow fiber membrane module 306 Reinforcement Members 361 Main body 361A Peripheral surface 361B Upper end 362 Outer cylinder 362A to 362D Plate 3620A to 3620D Surface 363 Hollow 364 Partition 365 Projection 365A...tip, 366...narrow part, 367...wide part, 368...projection

Claims (35)

a plurality of hollow fiber membranes;
a support that supports the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned,
The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. a strut and at least one reinforcing member for reinforcing the connection between the holding part and the strut;
Each of the holding portions is provided with a connection portion formed so as to be connectable with the pair of support columns,
The reinforcing member is provided in at least one of the connecting portions, the reinforcing member is formed to be inserted into the connecting portion and attached to the connecting portion, and the reinforcing member is attached to the connecting portion. A hollow fiber membrane module characterized by having at least one projecting portion, which is a portion projecting toward the connecting portion or the strut portion when attached to the hollow fiber membrane module. The reinforcing member has at least one projection directed toward the connecting portion, and at least one projection directed toward the strut. The hollow fiber membrane module according to claim 1, characterized in that: 2. The reinforcing member has four surfaces extending along the insertion direction of the reinforcing member, and at least one projection is provided on each of the four surfaces. or the hollow fiber membrane module according to 2. 4. The hollow fiber membrane module according to any one of claims 1 to 3, wherein the protrusion of the reinforcing member is formed to extend along the inserting direction of the reinforcing member. 5. The hollow fiber membrane module according to any one of claims 1 to 4, wherein the reinforcing member has a hollow portion forming a space extending along the insertion direction of the reinforcing member. 6. The hollow fiber membrane module according to claim 5, wherein the reinforcing member has a dividing portion that divides the hollow portion into two spaces. 7. The hollow fiber membrane module according to claim 6, wherein the partition extends in the inserting direction of the reinforcing member. The connection portion is provided with a placement portion in which the end portion of the support portion is placed, and a wall portion that forms a space adjacent to the support portion facing the support portion placed in the placement portion. 8. The hollow fiber membrane module according to any one of claims 1 to 7, wherein said reinforcing member is formed so as to be inserted into and attached to said space. The at least one connecting portion is provided with a plurality of the reinforcing members, and the connecting portion is attached to the connecting portion with the plurality of reinforcing members sandwiching the support portion between one side and the other side. 8. The hollow fiber membrane module according to any one of claims 1 to 7, which is formed as follows. 10. The hollow fiber membrane module according to claim 9, wherein said reinforcing member attached to said one side and said reinforcing member attached to said other side have sizes different from each other. The connection portion is provided with a placement portion in which the end portion of the support portion is placed, and a wall portion that forms a space adjacent to the support portion facing the support portion placed in the placement portion. wherein the reinforcing member is formed to be inserted into and attached to the space,
The wall section forms a space adjacent to the support section arranged in the placement section on the one side, and another space adjacent to the support section arranged in the placement section on the other side. 11. The hollow fiber membrane module according to claim 9 or 10, which forms a space. 12. The hollow fiber membrane module according to any one of claims 9 to 11, wherein the one side and the other side are aligned in the extending direction of the holding portion. 13. The hollow fiber membrane module according to any one of claims 1 to 12, wherein a filler is provided between said reinforcing member and said connection portion and said strut portion. a plurality of hollow fiber membranes;
a support that supports the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned,
The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. a strut and a plurality of reinforcing members for reinforcing connection between the holding part and the strut,
Each of the holding portions is provided with a connection portion formed so as to be connectable with the pair of support columns,
At least one of the connection portions is formed with a plurality of insertion portions forming a gap into which the reinforcing member can be inserted,
at least one of the plurality of reinforcing members has a restricting portion projecting in a direction intersecting the insertion direction of the reinforcing member;
A part of the plurality of insertion portions is formed with an open portion that allows the restricting portion of the reinforcing member inserted into the insertion portion to protrude outside the insertion portion, and is different from the other plurality of insertion portions. A hollow fiber membrane module characterized by having different sizes. 15. The hollow fiber membrane module according to claim 14, wherein the width of the open portion in the direction in which the restricting portion protrudes is smaller in a part of the insertion portion than in the other insertion portion. 16. The hollow fiber membrane module according to claim 14, wherein the open portion is formed at an end portion of the insertion portion on the rear side in the insertion direction of the reinforcing member. 17. The hollow fiber membrane module according to any one of claims 14 to 16, wherein the plurality of insertion sections are provided so as to face each other across the support section connected to the holding section. 18. The hollow fiber membrane module according to claim 17, wherein the plurality of insertion portions are arranged side by side in the extending direction of the holding portion. The connecting portion has two insertion portions, one of the two insertion portions is formed with the opening, and the one insertion portion having the opening is connected to the other insertion portion. 19. The hollow fiber membrane module according to claim 18, wherein the hollow fiber membrane module is provided on the inner side of the holding portion in the extending direction of the holding portion. The direction in which the restricting portion protrudes in the opening portion is along the extending direction of the holding portion, and the width of one insertion portion in which the opening portion is formed in the extending direction of the holding portion is equal to the width of the other insertion portion. 20. The hollow fiber membrane module according to claim 19, wherein the width is smaller than the width in the extending direction of the holding portion. 21. The restricting portion is formed so as to come into contact with the other inserting portion when the reinforcing member having the restricting portion is inserted into the other inserting portion. The hollow fiber membrane module according to any one of the above. 22. The hollow fiber membrane module according to any one of claims 14 to 21, wherein the restricting portion is a plate-like portion extending along the inserting direction of the reinforcing member. The reinforcing member having the restricting portion has a main body portion which is a portion forming an outer peripheral surface along the insertion direction of the reinforcing member, and the main body portion can be inserted into a part of the insertion portion. 23. The hollow fiber membrane module according to any one of claims 14 to 22, which has a shape. 24. The reinforcing member that does not have the restricting portion is formed so that it cannot be inserted into a part of the insertion portion but can be inserted into the other insertion portion. 2. The hollow fiber membrane module according to item 1. 14. The reinforcing member is formed so as to be able to come into contact with or face the supporting column with a gap therebetween in a state in which the reinforcing member is inserted into the insertion portion and attached to the connecting portion. 25. The hollow fiber membrane module according to any one of 24. a plurality of hollow fiber membranes;
a support that supports the plurality of hollow fiber membranes so that the plurality of hollow fiber membranes are aligned,
The support includes a pair of holding portions that respectively hold a pair of ends of the hollow fiber membranes, and a pair of holding portions that are connected to the pair of holding portions and support the pair of holding portions so as to face each other. a strut and a plurality of reinforcing members for reinforcing connection between the holding part and the strut,
Each of the holding portions is provided with a connection portion formed so that the pair of support columns can be connected to each other,
At least one of the connection portions is formed with a plurality of insertion portions forming a gap into which the reinforcing member can be inserted,
The reinforcing member has a protruding portion that protrudes in a direction intersecting the insertion direction of the reinforcing member,
A part of the plurality of insertion portions is formed with an opening for allowing the projecting portion of the reinforcing member inserted into the insertion portion to project to the outside of the insertion portion,
The hollow fiber membrane module, wherein the other inserting portion is formed so that the reinforcing member including the protruding portion can be inserted. 27. The hollow fiber membrane module according to claim 26, wherein the width of the open portion in the direction in which the projecting portion protrudes is smaller in a part of the insertion portion than in the other insertion portion. 28. The hollow fiber membrane module according to claim 26 or 27, wherein the open portion is formed at an end of the insertion portion on the rear side in the insertion direction of the reinforcing member. 29. The hollow fiber membrane module according to any one of claims 26 to 28, wherein the plurality of insertion sections are provided so as to face each other across the support section connected to the holding section. 30. The hollow fiber membrane module according to claim 29, wherein the plurality of insertion portions are arranged side by side in the extending direction of the holding portion. The connecting portion has two insertion portions, one of the two insertion portions is formed with the opening, and the one insertion portion having the opening is connected to the other insertion portion. 31. The hollow fiber membrane module according to claim 30, wherein the hollow fiber membrane module is provided on the inner side of the holding portion in the extending direction of the holding portion. The direction in which the projecting portion protrudes in the opening portion is along the extending direction of the holding portion, and the width of the one insertion portion in which the opening portion is formed in the extending direction of the holding portion is equal to the width of the other insertion portion. 32. The hollow fiber membrane module according to claim 31, wherein the width is smaller than the width in the extending direction of the holding portion. 33. The hollow fiber membrane module according to any one of claims 26 to 32, wherein said projecting portion is a plate-like portion extending along the insertion direction of said reinforcing member. The reinforcing member has a main body portion that forms an outer peripheral surface along the insertion direction of the reinforcing member, and the main body portion has a shape that can be inserted into a part of the insertion portion. 34. The hollow fiber membrane module according to any one of claims 26 to 33, characterized in that 26. The reinforcing member is formed so as to be able to come into contact with or face the supporting column with a gap in a state in which the reinforcing member is inserted into the insertion portion and attached to the connecting portion. 35. The hollow fiber membrane module according to any one of 34.

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