WO2023181941A1 - Support, système de filtration, et installation de traitement de filtration - Google Patents

Support, système de filtration, et installation de traitement de filtration Download PDF

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Publication number
WO2023181941A1
WO2023181941A1 PCT/JP2023/008771 JP2023008771W WO2023181941A1 WO 2023181941 A1 WO2023181941 A1 WO 2023181941A1 JP 2023008771 W JP2023008771 W JP 2023008771W WO 2023181941 A1 WO2023181941 A1 WO 2023181941A1
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WO
WIPO (PCT)
Prior art keywords
filtration
holder
filtration system
filtration membrane
divided
Prior art date
Application number
PCT/JP2023/008771
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English (en)
Japanese (ja)
Inventor
寛 野口
輝武 丹羽
彰利 中川
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株式会社明電舎
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Publication of WO2023181941A1 publication Critical patent/WO2023181941A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/08—Flat membrane modules
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Definitions

  • the present invention relates to a holder that holds a plurality of filtration membrane units, a filtration system that includes a plurality of filtration membrane units and a holder, and a filtration treatment facility that includes a plurality of filtration systems.
  • a holding body that includes a portion.
  • a membrane separation device as a filtration treatment facility described in Patent Document 1 includes a plurality of membrane modules.
  • the membrane module as a filtration system includes a holder consisting of two water collection cases and two cover members.
  • the structure of this holder is a frame-like structure consisting of a peripheral wall, and each of the two water collection cases constitutes a pair of walls that face each other on the peripheral wall, and the two cover members also face each other on the peripheral wall. Construct a pair of walls.
  • a plurality of membrane elements are arranged as a filtration membrane unit within the frame of the frame-like structure.
  • One of the two water collection cases of the holding body functions as a first holding part that holds each of one end in the longitudinal direction of a plurality of membrane elements arranged within the frame of the frame-like structure.
  • the other water collection case functions as a second holding part that holds each of the other ends of the plurality of membrane elements in the longitudinal direction.
  • the plurality of membrane elements held by the holder in this manner are aligned with each other along the thickness direction of the membrane.
  • the membrane separation device described in Patent Document 1 holds a plurality of membrane modules stacked in multiple stages using a metal frame. This configuration has the problem that when removing individual membrane modules from the frame for maintenance and inspection, the supports of the frame get in the way of the removal work, making maintenance and inspection time-consuming.
  • the present invention has been made in view of the above background, and its purpose is to provide a holder, a filtration system, and filtration processing equipment that can reduce the effort of maintenance and inspection of a filtration system such as a membrane module.
  • the goal is to provide the following.
  • one aspect of the present invention includes a first holding part that holds each of one end in the longitudinal direction of a plurality of filtration membrane units;
  • a second holding part that holds each of the ends on the other side holds the plurality of filtration membrane units in a manner arranged in the thickness direction of each filtration membrane, and faces each other in a frame-like structure consisting of a peripheral wall.
  • the holding body constitutes a pair of walls, and is characterized in that each of the different walls in the frame-like structure is provided with a column penetration portion that vertically penetrates the column.
  • FIG. 1 is a diagram showing a schematic configuration of a water treatment facility including a filtration system according to an embodiment. It is a perspective view showing a filtration membrane unit concerning an embodiment. It is a sectional view showing a longitudinal section of a suction side socket of the same filter membrane unit. It is a side view showing the same filter membrane unit from the side.
  • FIG. 1 is a perspective view showing a filtration system according to an embodiment. It is a perspective view which shows two water collection cassettes stacked on top of each other in the same filtration system. It is a perspective view showing the holding body of the same filtration system. It is a perspective view which shows the same holding body together with four division
  • FIG. 1 is a diagram showing a schematic configuration of a water treatment facility including a filtration system according to an embodiment. It is a perspective view showing a filtration membrane unit concerning an embodiment. It is a sectional view showing a longitudinal section of a suction side socket of the same filter membrane unit.
  • FIG. 3 is a perspective view showing both ends of the divided support in the axial direction. It is a perspective view showing a water collection cassette of the holding body concerning an embodiment. It is a perspective view which shows the holding body of the filtration system arrange
  • FIG. 1 is a diagram showing a schematic configuration of a water treatment facility including filtration treatment equipment according to an embodiment.
  • This water treatment facility includes a raw water tank 1, a filtered water tank 2, a treated water tank 3, a control device 4, a raw water pump 5, a first water level sensor 6, a raw water transfer pipe 7, a treated water transfer pipe 8, a suction pump 9, and a first water level sensor 6.
  • a second water level sensor 11, a third water level sensor 12, etc. are provided.
  • the water treatment facility also includes a blower 13, an air supply pipe 14, a pedestal 15, a filtration treatment facility 20, a bubble generator 90, and the like.
  • raw water (pre-treatment water) W1 as a liquid is stored.
  • a first water level sensor such as an ultrasonic sensor installed in the raw water tank 1, detects the water level (water surface height) of the raw water W1 in the raw water tank 1, and sends the detection result to the control device 4 as a water level signal.
  • a raw water pump 5 installed in the raw water tank 1 sucks and discharges the raw water W1 in the raw water tank 1, and sends it to the filtration treatment tank 2 through the raw water transfer pipe 7.
  • a submersible pump is illustrated as the raw water pump 5, a land pump may also be used.
  • the filtration treatment water tank 2 is a water tank made of reinforced concrete.
  • a filtration treatment equipment 20 and a bubble generator 90 are installed in the filtration treatment water tank 2.
  • the filtration treatment equipment 20 and the bubble generator 90 are supported by the pedestal 15.
  • the pedestal 15 supports the bubble generator 90 in such a manner that it is positioned directly below the filtration treatment equipment 20 .
  • Each of the filtration equipment 20 and the bubble generator 90 is immersed in the raw water W1 in the filtration water tank 2.
  • the blower 13 discharges air as a gas sucked through the suction port to the air supply pipe 14 through the discharge port.
  • the air discharged into the air supply pipe 14 is supplied to the bubble generator 90.
  • the bubble generator 90 emits air supplied from the air supply pipe 14 upward as bubbles.
  • the released air bubbles rise in the raw water W1 while contacting a plurality of filter membranes mounted on the filtration treatment equipment 20. At this time, the bubbles cause the solid matter adhering to the surface of the filtration membrane to separate from the surface of the filtration membrane. This separation suppresses clogging of the filtration membrane.
  • the third water level sensor 12 installed in the filtered water tank 2 detects the water level of the raw water W1 in the filtered water tank 2, and transmits the detection result to the control device 4 as a water level signal.
  • the suction pump 9 sucks raw water W 1 in the filtered water tank 2 via the treated water transfer pipe 8 and a plurality of filter membranes, which will be described later, mounted in the filtering equipment 20 .
  • the sucked raw water W 1 is filtered by a filter membrane to become treated water W 2 , and then sent to the treated water tank 3 through the treated water transfer pipe 8 .
  • the second water level sensor 11 set in the treated water tank 3 detects the water level of the treated water W2 in the treated water tank 3, and transmits the detection result to the control device 4 as a water level signal.
  • suction pump 9 a pump that generates suction force using water head pressure may be used.
  • the means of suction is not particularly limited.
  • the control device 4 When the water level in the treated water tank 3 has not reached the upper limit and predetermined operation execution conditions are met, the control device 4 operates the suction pump 9 and the blower 13 to perform the filtration process on the raw water W1. Execute. However, even if the operation execution conditions are met, if the water level of the raw water W 1 in the raw water tank 1 is below the lower limit, or if the water level of the raw water W 1 in the filtered water tank 2 is below the lower limit. In this case, the control device 4 stops execution of the filtration process.
  • the filtration treatment equipment 20 includes a plurality of filtration systems (described in detail later) according to the embodiment.
  • Each filtration system includes a plurality of filtration membrane units (described in detail later) according to embodiments.
  • FIG. 2 is a perspective view showing the filtration membrane unit 21 according to the embodiment.
  • the filtration membrane unit 21 includes a flat filtration membrane 22 .
  • the material for the filter membrane 22 include organic materials such as PVDF (polyvinylidene fluoride) and PVC (polyvinyl chloride).
  • a ceramic whose main component is alumina, silicon carbide, etc. may be used as the material of the filter membrane 22 .
  • the filtration membrane 22 of the filtration membrane unit 21 according to the embodiment is made of a ceramic membrane.
  • suction force is applied to the filtration membrane 22 along the longitudinal direction of the filtration membrane 22.
  • a suction force is applied to the filtration membrane 22 from one side in the longitudinal direction of the filtration membrane 22 (the right side in the left-right direction in FIG. 4, which will be described later). That is, one side of the filter membrane 22 in the longitudinal direction is a suction side to which suction force is applied.
  • the other side in the longitudinal direction of the filtration membrane 22 (the left side in the left-right direction in FIG. 4, which will be described later) is a shielding side that shields the suction force applied to the filtration membrane 22.
  • the filtration membrane unit 21 includes a suction side socket 23 and a shielding side socket 24.
  • the suction side socket 23 serving as a socket in the present invention is fixed to one end of the filtration membrane 22 in the longitudinal direction in order to hold the filtration membrane 22 on one side (suction side) in the longitudinal direction.
  • the shield-side socket 24 is fixed to the other longitudinal end of the filter membrane 22 in order to hold the filter membrane 22 on the other longitudinal side (shield side).
  • Each of the suction side socket 23 and the shielding side socket 24 is fixed to the filtration membrane 22 and extends in the lateral direction of the filtration membrane 22 (in the embodiment, the vertical direction along the direction of gravity).
  • FIG. 3 is a sectional view showing a longitudinal section of the suction side socket 23.
  • the suction side socket 23 includes a socket main body 23a.
  • the socket main body 23a has a recess 23d into which one longitudinal end of the filtration membrane (22 in FIG. 2) is inserted, and a channel 23e extending in the extending direction of the socket main body 23a while communicating with the recess 23d. Be prepared.
  • the socket main body 23a completely covers the circumferential surface of the filtration membrane (22 in FIG. 2), which is composed of a front surface, a back surface, and two side surfaces at one longitudinal end of the filtration membrane (22 in FIG. 2), by the inner peripheral surface of the recess 23d. Cover all around.
  • the inner circumferential surface of the recess 23d covers the entire circumferential surface of one end of the filter membrane (22) in the longitudinal direction, thereby preventing the end from wobbling within the recess 23d.
  • the suction side socket 23 includes a first protrusion 23b and a second protrusion 23c.
  • Each of the first protruding body 23b and the second protruding body 23c is located on the outside (on the right side in FIG. 3) of the socket main body 23a in the longitudinal direction (left-right direction in FIG. 3) of the filtration membrane (22 in FIG. 2). , are lined up along the extending direction (vertical direction in FIG. 3) of the socket body 23a.
  • Each of the first protruding body 23b and the second protruding body 23c extends from one end surface of the socket main body 23a (right side in FIG. 3) to one side in the longitudinal direction (left-right direction in FIG. 3) of the filtration membrane (22). protrude towards.
  • each of the first protruding body 23b and the second protruding body 23c is a tubular structure having a hollow (23b-1, 23c-1).
  • Each hollow (23b-1, 23c-1) in the first protrusion 23b and the second protrusion 23c communicates with the channel 23e of the socket body 23a.
  • each hollow (23b-1, 23c-1) in the first protrusion 23b and the second protrusion 23c is located at each end of the protrusion (23b, 23c) in the extending direction (left-right direction in FIG. 3). is open.
  • the opening on one side the right side in FIG.
  • the first outlet 23b-2 is a discharge port for discharging the treated water (W 2 in FIG. 1). Further, among the two openings in the hollow 23c-1 of the second protrusion 23c, the opening on one side (the right side in FIG. 3) in the extending direction (left-right direction in FIG. 3) of the second protrusion 23c is a flow path.
  • the second outlet 23c-2 is a discharge port for discharging the treated water in the second outlet 23e.
  • the hollow 23b-1 of the first protruding body 23b has an opening 23b-3 on the other side (the left side in FIG. 3) in the extending direction (left-right direction in FIG. 3) of the first protruding body 23b among its two openings. It communicates with the flow path 23e through.
  • the hollow 23c-1 of the second protrusion 23c is the opening 23c on the other side (the left side in FIG. 3) of the two openings of the second protrusion 23c in the extending direction (left-right direction in FIG. 3). -3 and communicates with the flow path 23e.
  • FIG. 4 is a side view showing the filtration membrane unit 21 from the side.
  • the shield-side socket 24 of the filtration membrane unit 21 includes a socket main body 24a and two protrusions 24b.
  • the socket main body 24a includes a recess (not shown) into which the other end (left side in FIG. 4) of the filter membrane 22 in the longitudinal direction (left-right direction in FIG. 4) is inserted. Note that the socket main body 24a does not include a flow path communicating with the above-mentioned recess.
  • the suction force applied to the filtration membrane 22 is blocked on the other longitudinal side of the filtration membrane 22 by the shielding side socket 24 .
  • Each of the two protrusions 24b in the shielding side socket 24 is located outside (on the left side in FIG. 4) of the socket body 24a in the longitudinal direction of the filtration membrane 22 (the left-right direction in FIG. 4), and extends from the socket body 24a. They are lined up along the current direction (vertical direction in FIG. 4).
  • FIG. 5 is a perspective view showing the filtration system 31 according to the embodiment.
  • the filtration system 31 includes a plurality of filtration membrane units 21 and a holder 40 that holds the plurality of filtration membrane units 21.
  • the holder 40 includes a water collection cassette 41, a blind cassette 60, a first side cover 65, and a second side cover 66.
  • the structure of the holder 40 is a frame-like structure consisting of a peripheral wall formed by connecting four walls.
  • the water collection cassette 41 functions as a first holding section that holds each of one end of the plurality of filtration membrane units 21 in the longitudinal direction.
  • the blind cassette 60 functions as a second holding section that holds each of the other ends of the plurality of filtration membrane units 21 in the longitudinal direction.
  • the water collection cassette 41 and the blind cassette 60 constitute a pair of opposing walls in the frame-like structure of the holder 40, and the plurality of filtration membrane units 21 are arranged in the thickness direction of each filtration membrane 22. Hold them side by side. Further, the first side cover 65 and the second side cover 66 constitute a pair of opposing walls in the frame-like structure of the holder 40, in addition to the above-mentioned pair.
  • the treated water filtered by the plurality of filtration membrane units 21 moves within the filtration membrane 22 from the other side to the one side in the longitudinal direction, and passes through the first protrusion 23b or the second protrusion. 23c, and is collected in a water collection cassette 41 shown in FIG.
  • FIG. 5 is a perspective view showing the filtration treatment equipment 20 according to the embodiment.
  • the filtration treatment facility 20 includes three filtration systems 31.
  • the three filtration systems 31 have a three-tier structure in which the three filtration systems 31 are vertically stacked. Note that the number of stages is not limited to three stages, and may be two stages or four stages or more. Alternatively, a multi-stage structure may be used in which a plurality of filtration systems 31 are arranged in the same stage.
  • FIG. 6 is a perspective view showing two water collection cassettes 41 stacked on top of each other in the filtration system (31).
  • the connecting pipe 70 shown in the figure plays the role of connecting the two water collection cassettes 41.
  • Three top plate openings 42a are arranged in the top plate 42 of each of the two water collection cassettes 41 so as to be lined up at predetermined intervals along the longitudinal direction of the top plate 42.
  • the top plate opening 42a faces upward in the vertical direction.
  • Three cylindrical first connection sockets 50 are arranged inside the water collection cassette 41. These first connection sockets 50 are fixed to the back surface of the top plate 42 and communicate with the top plate opening 42a.
  • Three bottom plate openings 45a are arranged in the bottom plate 45 of each of the three water collection cassettes 41 so as to be lined up at predetermined intervals along the longitudinal direction of the bottom plate 45.
  • the bottom plate opening 45a faces downward in the vertical direction.
  • One of the three top plate openings 42a and one of the three bottom plate openings 45a face each other along the up-down direction.
  • the other one of the three top plate openings 42a and the other one of the three bottom plate openings 45a face each other along the up-down direction.
  • the last one of the three top plate openings 42a and the last one of the three bottom plate openings 45a face each other along the up-down direction.
  • Three cylindrical second connection sockets 51 are provided inside the water collection cassette 41. These second connection sockets 51 are fixed to the back surface of the bottom plate 45 and communicate with the bottom plate opening 45a.
  • the water collection cassette 41 arranged on the lower side of the figure and the water collection cassette 41 arranged on the upper side of the figure are connected by three connecting pipes 70.
  • the connecting pipe 70 is arranged in such a manner that the pipe length direction is along the vertical direction.
  • a ring-shaped recess (not shown) extending over the entire circumference of the pipe circumferential surface is arranged at one end and the other end in the longitudinal direction of the connecting pipe 70, and each ring An O-ring 71 is fitted into the shaped recess.
  • One end of the connecting pipe 70 in the longitudinal direction is inserted into the second connecting socket 51 of the water collection cassette 41 on the upper side of the figure.
  • the other end of the connecting pipe 70 in the longitudinal direction is inserted into the first connecting socket 50 of the water collection cassette 41 on the upper side of the figure.
  • the internal space of the water collecting cassette 41 on the upper side of the figure and the inner space of the water collecting cassette 41 on the lower side of the figure communicate with each other through three connecting pipes 70.
  • connection pipes 70 are not inserted into each of the three second connection sockets 51, but are inserted into each of the three second connection sockets 51.
  • a sealing plug (not shown) is inserted into the second connection socket 51. This prevents the suction force generated in the internal space of the lowermost water collection cassette 41 from leaking to the outside through the second connection socket 51.
  • connection pipes 70 are not inserted into the three first connection sockets 50, but are branched for water collection. A tube is inserted. These water collection branch pipes are connected to one treated water transfer pipe (8 in FIG. 1).
  • the treated water that has passed through the filtration membranes (22) of the plurality of filtration membrane units (21) held by the water collection cassette 41 flows into the internal space of the water collection cassette 41 on the lower side of the figure. Furthermore, treated water that has passed through the filtration membranes (22) of the plurality of filtration membrane units (21) held by the water collection cassette 41 flows into the internal space of the water collection cassette 41 on the upper side of the figure.
  • the treated water existing in the internal space of the lower water collecting cassette 41 in the figure is sucked into the internal space of the upper water collecting cassette 41 through the connecting pipe 70 by the suction force generated inside the connecting pipe 70. be done.
  • treated water that has passed through each of the plurality of filtration membranes 22 is collected in the water collection cassette 41.
  • the treated water in the inner space of the water collection cassette 41 located lower is transferred to the inner space of the water collection cassette 41 located higher. is sucked into.
  • the treated water collected in the internal space of each of the three water collection cassettes 41 is finally collected in the internal space of the uppermost water collection cassette 41, and then the treated water is collected in the treated water tank ( It is transferred to 3) in FIG.
  • FIG. 7 is a perspective view showing the holding body 40.
  • FIG. 8 is a perspective view showing the holder 40 together with four divided columns 100.
  • the first side cover 65 of the holder 40 is provided with strut penetration portions 65a protruding from the outer surface at each of the four corners of the outer surface.
  • Each pillar penetrating portion 65a includes a through hole extending in the vertical direction. This through hole is for passing the split support 100 through.
  • Two of the four pillar penetrating portions 65a are vertically aligned with each other and located on the same axis. Similarly, the other two are vertically aligned with each other and located on the same axis.
  • the number of pillar penetrating parts 65a arranged in the first side cover 65 is four, but two of them are each located on the same axis, so they can be divided into parts that can be attached to the first side cover 65.
  • the number of pillars 100 is two.
  • the second side cover 66 also includes four pillar penetrating portions 66a having a similar configuration at each of the four corners of the outer surface. Similarly, two divided columns 100 are attached to the second side cover 66.
  • FIG. 9 is a perspective view showing both ends of the split strut 100 in the axial direction. As shown in the figure, unevenness 100a is provided on each outer circumferential surface of both ends of the split strut 100.
  • FIG. 10 is a perspective view showing the holder 40 of the filtration system (31) located at the lowest stage.
  • a hanger 102 for hanging the filtration system (31) is attached to the lower end of the split strut 100 passed through the strut penetration parts (65a, 66a) of the filtration system (31) arranged at the lowest stage.
  • FIG. 11 is an exploded perspective view showing the hanging tool 102.
  • the hanging tool 102 includes a cover part 102a made of a through hole that covers the lower end of the split column (100) from the outer circumferential side, an insertion part 102b inserted into a recessed part (described later) of the first side cover (65), and two parts.
  • the bolt hole 102c is provided with two bolt holes 102c.
  • the hanging tool 102 is made up of two members that divide the split column (100) into two in the axial direction when no bolts are installed in the two bolt holes 102c.
  • the inner circumferential surface of the cover portion 102a consisting of a through hole is formed with concavities and convexities as shown in the figure. As shown in FIG. 12, this unevenness is an engagement unevenness that engages with the unevenness 100a at the end of the split strut 100.
  • FIG. 13 is a perspective view showing the corner bottom of the first side cover 65 and the blind cassette 60 in the filtration system 131 disposed at the lowest stage.
  • a dashed-dotted line L1 indicates the axis of the split strut 100.
  • the dashed-dotted line L2 is a perpendicular line to the outer surface of the first side cover 65.
  • a recess 65b is provided at the bottom of the cover 65.
  • the recessed portion 65b is recessed from the outer surface of the first side cover 65 toward the inner surface.
  • the insertion portion 102a3 of the hanging tool 102 attached to the lower end of the split column 100 is inserted into the recess 65b. In this state, when the split strut 100 is pulled upward, the filtration system 131 with the insertion part 102a3 hooked to the recessed part 65b is lifted upward.
  • the recessed portion 65b may be provided only on the first side cover 65, or may be provided continuously from the first side cover 65 to the blind cassette 60.
  • the corner bottoms of the first side cover 65 and the blind cassette 60 have been described, similar recesses are also arranged at the three corner bottoms to be described next. That is, the corner bottom between the first side cover 65 and the water collection cassette (41), the corner bottom between the second side cover 66 and the blind cassette 60, and the corner bottom between the second side cover 66 and the water collection cassette (41). There are three.
  • FIG. 14 is a perspective view showing the holders 40 of two filtration systems (131) stacked in two stages.
  • a split strut 100 passed through the strut penetration parts (65a, 66a) of the holder 40 arranged at the lower stage, and a split strut 100 passed through the strut penetration parts (65a, 66a) of the holder 40 arranged at the upper stage. are connected in the axial direction by a connecting tool 101.
  • the divided struts 100 passed through the lower strut penetration parts (65a, 66a) and the divided struts 100 passed through the upper strut penetration parts (65a, 66a) on the axis thereof are connected into one.
  • each filtration system (131) in the filtration treatment facility (20) including a plurality of filtration systems (131) stacked in multiple stages is fixed at a predetermined position.
  • FIG. 15 is an exploded perspective view showing the connector 101.
  • the connector 101 includes a cover portion 101a that is a through hole that covers one end (upper end) and the other end (lower end) of the two divided struts 100 to be connected from the outer peripheral side; and two bolt holes 101b.
  • the connecting tool 101 is made up of two members that divide the split column (100) into two in the axial direction when no bolts are installed in the two bolt holes 101b.
  • the inner circumferential surface of the cover portion 101a consisting of a through hole is formed with unevenness as shown in the figure. As shown in FIG. 16, this unevenness is an engagement unevenness that engages with the unevenness 100a on the upper end of the lower divided column 100 and the unevenness 100a on the lower end of the upper divided column 100.
  • each of the pillar penetrating portions 65a provided in the first side cover 65 is arranged at a position avoiding the upper and lower ends of the first side cover 65.
  • a space is secured between the column penetrating portion 65a of the lower first side cover 65 and the column penetrating portion 65a of the upper first side cover 65, in which the connector 101 is interposed, as shown in the figure. . That is, by arranging the column penetrating portion 65a at the avoided position as described above, it is possible to connect the lower divided column 100 and the upper divided column 100 with the connector 101.
  • the present invention is not limited to the above-described embodiments and examples, and configurations different from the embodiments and examples may be adopted within the scope where the configuration of the present invention is applicable.
  • the present invention has specific effects for each aspect described below.
  • the first aspect includes a first holding part (e.g., water collection cassette 41) that holds each of one end in the longitudinal direction of a plurality of filtration membrane units (e.g., filtration membrane unit 121), and a first holding part (e.g., water collection cassette 41), and a plurality of filtration membrane units.
  • a second holding part e.g. blind cassette 60 that holds each of the other ends in the longitudinal direction arranges the plurality of filtration membrane units in the thickness direction of each filtration membrane (e.g. filtration membrane 22).
  • a holder for example, the holder 40 that forms a pair of opposing walls in a frame-like structure consisting of a peripheral wall, and includes a column penetrating portion (for example, column penetrating portion 65a) that vertically penetrates the column. , 66a) are provided on each of the different walls of the frame-like structure.
  • a second aspect is a holder having the configuration of the first aspect, and is characterized in that the pillar penetrating portion is arranged at a position avoiding the upper and lower ends of the wall.
  • a third aspect is a holder having the configuration of the second aspect, in which an axis in the penetrating direction of the column penetrating portion (for example, a dashed line L1) in the entire area of the outer surface of the wall including the column penetrating portion;
  • a recessed portion e.g., recessed portion 65b that is recessed from the outer surface toward the inner surface is provided at the bottom of the wall on the perpendicular line at the intersection with the perpendicular line (e.g., dashed-dotted line L2) to the outer surface of the wall.
  • the depression can be used as a hook for hooking a hanging tool for hanging the filtration system.
  • a fourth aspect is a filtration system (for example, filtration system 131) comprising a plurality of filtration membrane units and a holder that holds the filtration membrane units, wherein the holder is one of the first to third aspects. It is characterized by being a holder.
  • a fifth aspect is a filtration system having the configuration according to the fourth aspect, wherein the holder includes the holder according to the second aspect or the third aspect, and divided struts (for example, split struts 100) and connectors (for example, connectors 101) that connect the two divided struts in the axial direction are provided, at least in the same number as the number of axes of the plurality of strut penetrating portions arranged in the holder. It is characterized by this.
  • a sixth aspect is a filtration system having the configuration of the fifth aspect, wherein the split strut is provided with unevenness (for example, unevenness 100a) on each of the outer circumferential surfaces of both ends, and the connector is connected to the two to be connected. It is comprised of two members, including a cover part (for example, a cover part 101a) that covers one end part and the other end part of the two divided pillars from the outer peripheral side, and divides the divided pillar into two in the axial direction, The cover portion is characterized in that it includes engaging projections and depressions that engage with the projections and depressions of the one end and the projections and depressions of the other end.
  • the two divided struts can be connected in the axial direction by a simple operation of integrating the two members of the connecting tool with bolts or the like.
  • a seventh aspect is a filtration system having the configuration of the sixth aspect, which includes the holder according to the third aspect as the holder, and at least a hanging tool (for example, hanging tool 102) for hanging the filtration system.
  • a covering part for example, the covering part 102a
  • the covering part 102a which is provided in the same number as the number of axes of the plurality of pillar penetrating parts arranged in the holder, and in which the hanging tool covers the other end of the divided pillar from the outer peripheral side
  • the hanging tool can be set in the filtration system by a simple operation of integrating the two members of the hanging tool with bolts or the like.
  • An eighth aspect is a filtration treatment facility (for example, a filtration treatment facility 20) comprising a plurality of filtration systems stacked in multiple stages, wherein the filtration system is the filtration system according to any one of the fourth to seventh aspects. It is characterized by this.

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

Abstract

L'invention concerne un support qui maintient une pluralité d'unités de membrane de filtration, de manière agencées dans la direction de l'épaisseur de chaque membrane de filtration, au moyen d'une cassette de collecte d'eau 41 maintenant chacune des extrémités sur un côté dans la direction longitudinale de la pluralité d'unités de membrane de filtration et une cassette aveugle maintenant chacune des extrémités sur l'autre côté dans la direction longitudinale des unités de membrane de filtration, parmi des régions entourées par le bord externe de la section transversale de la cassette de collecte d'eau 41 le long d'une direction orthogonale à la direction de face de la cassette de collecte d'eau 41 et de la pluralité d'unités de membrane de filtration maintenues dans la cassette de collecte d'eau, dans une région faisant face à la pluralité d'unités de membrane de filtration le long de la direction faisant face, une pluralité d'ouvertures traversantes (101 à 112) étant agencées pour pénétrer dans la cassette de collecte d'eau 41 le long de la direction faisant face.
PCT/JP2023/008771 2022-03-23 2023-03-08 Support, système de filtration, et installation de traitement de filtration WO2023181941A1 (fr)

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JP2022046621A JP7363950B2 (ja) 2022-03-23 2022-03-23 濾過処理設備
JP2022-046621 2022-03-23

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WO2023181941A1 true WO2023181941A1 (fr) 2023-09-28

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Citations (4)

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US20090236295A1 (en) * 2006-05-08 2009-09-24 Itn Nanovation Ag Immersion filter unit for wastewater treatment and production of drinking water
JP2012148230A (ja) * 2011-01-18 2012-08-09 Kubota Corp 膜分離装置
JP2017104779A (ja) * 2015-12-08 2017-06-15 株式会社クボタ 膜分離装置および膜分離設備
WO2018034153A1 (fr) * 2016-08-18 2018-02-22 東洋紡株式会社 Module de membranes à fibres creuses plates et unité de séparation de membranes

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Publication number Priority date Publication date Assignee Title
JP2001162140A (ja) 1999-12-06 2001-06-19 Daicel Chem Ind Ltd 濾過膜モジュール
US7279215B2 (en) 2003-12-03 2007-10-09 3M Innovative Properties Company Membrane modules and integrated membrane cassettes
JP5425394B2 (ja) 2007-12-27 2014-02-26 月島機械株式会社 濾過モジュール、濾過モジュール積層体、および濾過装置
JP2010247086A (ja) 2009-04-16 2010-11-04 Unitika Ltd 平膜モジュールおよびそれを用いた水処理装置
JP6207986B2 (ja) 2013-11-26 2017-10-04 株式会社クボタ 膜分離装置の吊り上げ方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090236295A1 (en) * 2006-05-08 2009-09-24 Itn Nanovation Ag Immersion filter unit for wastewater treatment and production of drinking water
JP2012148230A (ja) * 2011-01-18 2012-08-09 Kubota Corp 膜分離装置
JP2017104779A (ja) * 2015-12-08 2017-06-15 株式会社クボタ 膜分離装置および膜分離設備
WO2018034153A1 (fr) * 2016-08-18 2018-02-22 東洋紡株式会社 Module de membranes à fibres creuses plates et unité de séparation de membranes

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