CN106669426A - Wound membrane element and winding method thereof - Google Patents
Wound membrane element and winding method thereof Download PDFInfo
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- CN106669426A CN106669426A CN201611270125.1A CN201611270125A CN106669426A CN 106669426 A CN106669426 A CN 106669426A CN 201611270125 A CN201611270125 A CN 201611270125A CN 106669426 A CN106669426 A CN 106669426A
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- special
- water
- perineurium
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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
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a wound membrane element, which is formed by winding a sheet membrane bundle. The wound membrane element comprises a special-shaped membrane, a flat membrane, a water inflow end cap, and a water production end cap, the special-shaped membrane is connected to the flat membrane to form the sheet membrane bundle, both ends of the sheet membrane bundle are a water inflow end and a water production end, a concentrated water outlet is formed between each two adjacent water production passages and close to an end sealant line at the water production end, and the water production passages at the water inflow end of the sheet membrane bundle are sealed; after the sheet membrane bundle is wound, the water inflow end cap is arranged at the water inflow end, the water production end cap is arranged at the water production end, and water inflow passages at the water production end are sealed. The invention further relates to a winding method for the wound membrane element. The wound membrane element disclosed by the invention changes the membrane bag shape, enables a membrane bag to provide the water inflow passages and the water production passages, dispenses with a central pipe, a water inflow filter and a concentrated water filter, and achieves the objective of reducing wound membrane cost; moreover, by changing the water production passage form, the length of the membrane bag is increased, and the filling area of the wound membrane is enlarged.
Description
Technical field
The present invention relates to wound membrane element and its method for coiling, it is widely used in the separation of water, filters and purify dress
In putting.
Background technology
Wound membrane element is that existing market uses one of extensive film application form, and with loading, density is big, installation operation
Effective membrane area is larger in simplicity, compact conformation, unit volume, manufacture craft is relatively easy.Existing wound membrane element is flat
Plate film roll system is formed, including flat board diaphragm, water inlet filter, product water filter, glue and central tube etc..Wound membrane element feedwater flowing
Different from traditional filtration stream direction, feedwater is introduced from membrane component end, is fed water along the parallel direction flowing in film surface, quilt
Detached product water is perpendicular to film surface, enters through film and produces moisture film bag, thus, form one vertically, laterally mutually handing over
The flow direction of fork.Because the diaphragm of traditional wound membrane element is writing board shape, thus intake tunnel and produce aquaporin respectively by
Water inlet filter and product water filter are provided, and which increase the cost of wound membrane element.Meanwhile, the film bag of wound membrane element can not mistake
Long, because produce water collecting in central tube, the far and near of distance center pipe affects to produce hydraulic pressure drop, so as to cause aquifer yield uneven,
Fouling membrane degree not parity problem.In addition, film bag shortens, filling area can be reduced.
The content of the invention
The purpose of the present invention is exactly, in order to reduce the cost of rolled film, to improve the filling area of rolled film.For this purpose, of the invention
Propose a kind of wound membrane element and its method for coiling, the wound membrane element of the present invention eliminates central tube, water inlet filter and dense
Water filter, having reached reduces the purpose of rolled film cost, also, produces water flow passage mode by changing, and increased film bag length, carries
The high filling area of rolled film.
The key improvements part of the present invention is to change film bag shape, and realizing film bag itself can provide water inlet flow channel
With product water flow passage.The concrete structure of the wound membrane element of the present invention is as follows：
The invention provides a kind of wound membrane element, it is to be rolled to form by sheet perineurium, and it includes special-shaped film, flat board
Film, intake end cover and water end (W.E.) lid is produced, the special-shaped film is made up of male and fomale(M＆F) and backboard, male and fomale(M＆F) includes upper convex surface and recessed flat
Face, backboard is fixedly connected with recessed planar underside, and so as to form cavity between backboard and upper convex surface, backboard is non-woven fabrics,
Male and fomale(M＆F) is the composite construction of non-woven fabrics and film layer, and the upside of male and fomale(M＆F) is film layer, and downside is non-woven fabrics, and Flat Membrane is by Flat Membrane
Non-woven fabrics and Flat Membrane film layer are constituted, and special-shaped film is stacked in back-to-back on special-shaped film backboard and lower concave plane corresponding position with Flat Membrane
It is connected so as to form the sheet perineurium, sheet perineurium two ends are respectively water inlet end and produce water end (W.E.), are producing the side joint of water end (W.E.) one
Near-end sealing glue position, is formed with concentrated water outlet in the middle of adjacent product aquaporin, and the product water of the sheet perineurium water inlet end side leads to
Road is sealed, and water inlet end side arranges intake end cover after the sheet perineurium roll-forming, is produced water end (W.E.) side and is arranged product water end (W.E.) lid, and
Produce the intake tunnel sealing of water end (W.E.) side.
The material of the film layer of the male and fomale(M＆F) and the film layer of Flat Membrane be polysulfones, polyether sulfone, Kynoar, chlorination gather
The blending of one or more of ethene.
The backboard and the connection of recessed planar underside and the special-shaped film and the connection of Flat Membrane be by adhesive,
Hot melt or ultrasound realize bonding, 1~30MPa of adhesion strength.
The length of concave plane is 2.0~5.0mm under the special-shaped film；The height of the special-shaped film upper convex surface be 0.3~
1.8mm；The special-shaped film constitutional repeating unit 2.5~6.5mm of length.
Described concentrated water outlet is formed by punching in the middle of adjacent product aquaporin or carrying out trapezoidal cutting out.
The mode of the punching is mechanical punching, and the hole is circular port, the one or two kinds of shape of circular arc rectangular opening
Mixing.
A diameter of 1.0~4.0mm of the circular port；The width of the circular arc rectangular opening is 1.0~4.0mm, and length is
3.0~20.0mm.
The mode of cutting out is that ultrasonic wave is cut out or computer laser is cut out.
Present invention also offers a kind of method for coiling of wound membrane element, the method comprises the steps：
(1) preparation of special-shaped film：Special-shaped film is made up of backboard and male and fomale(M＆F), and backboard is non-woven fabrics, and male and fomale(M＆F) is non-woven fabrics
With the composite construction of film layer, backboard and male and fomale(M＆F) downside is fixedly connected, and the upside of male and fomale(M＆F) is film layer, and downside is non-woven fabrics, recessed
Convex surface includes lower concave plane and upper convex surface, and preparation method is flat composite membrane through special-shaped mould thermocompression forming or non-woven fabrics
Film layer is coated with after special-shaped mould thermocompression forming；
(2) prepared by sheet perineurium：Special-shaped film is set to be stacked back-to-back with Flat Membrane, with lower concave plane pair on special-shaped film backboard
Should place be connected so as to form the sheet perineurium, sheet perineurium two ends are respectively water inlet end and produce water end (W.E.)；
(3) concentrated water is portalled：End sealing glue position is close to is produced from water end (W.E.) side, concentrated water is formed in the middle of adjacent product aquaporin and is gone out
Mouthful, construct complete concentrated water runner；
(4) perineurium is rolled：In water inlet end side, sheet perineurium is produced into aquaporin sealing, then roll into sheet perineurium
Cylinder；
(5) trimming end seal：Cylinder perineurium two ends are trimmed, cylinder perineurium water inlet end is filled in into end cap and is fixed, by circle
Cylinder perineurium is produced water end (W.E.) and fills in product water end (W.E.) lid glue envelope and cut and exposes product water flow passage, produces the intake tunnel sealing of water end (W.E.) side.
The hot pressing temperature is 60~220 DEG C, and pressure is 0.05~1.0MPa.
Description of the drawings
In order to be easier to understand technical scheme and beneficial technique effect, by referring to what is be shown in the drawings
The specific embodiment of the present invention to the present invention being described in detail.These accompanying drawings depict only typical case's enforcement of the present invention
Mode, does not constitute the restriction to protection scope of the present invention, wherein：
Fig. 1 is the special-shaped film male and fomale(M＆F) partial schematic diagram of an embodiment of wound membrane element of the invention.
Fig. 2 is the special-shaped membrane structure partial schematic diagram of an embodiment of wound membrane element of the invention.
Fig. 3 is partially schematic before the rolled film of an embodiment of wound membrane element of the invention is rolled
Figure.
Fig. 4 is the schematic diagram of the first embodiment of the concentrated water outlet of wound membrane element of the invention.
Fig. 5 is that the wound membrane element in Fig. 4 has installed intake end cover additional and produced the schematic diagram after water end (W.E.) lid.
Fig. 6 is the schematic diagram of the second embodiment of the concentrated water outlet of wound membrane element of the invention.
Fig. 7 is that the wound membrane element in Fig. 6 has installed intake end cover additional and produced the schematic diagram after water end (W.E.) lid.
Fig. 8 is the influent side partial sectional view of an embodiment of wound membrane element of the invention.
Fig. 9 is the product water side partial sectional view of an embodiment of wound membrane element of the invention.
In the reference indicated in Fig. 1-9：
1：Film layer；2：Non-woven fabrics；3：Upper convex surface；4：Lower concave plane；5：Backboard；6：Flat Membrane non-woven fabrics；7：Flat Membrane
Film layer；8：Special-shaped film and Flat Membrane tack line；9：Concentrated water is exported；10：Produce water end (W.E.) lid；11：Intake end cover；12：Water inlet flow channel；13
Produce water flow passage；A：Produce water end (W.E.)；B：Water inlet end；C：Sealing glue position.
Specific embodiment
See figures.1.and.2, wound membrane element according to the embodiment of the present invention includes special-shaped film, and the special-shaped film is by recessed
Convex surface and backboard 5 are constituted, and male and fomale(M＆F) includes upper convex surface 3 and lower concave plane 4, and the upper convex surface for showing in fig. 1 and 2 is circle
Arc, naturally it is also possible to using the upper convex surface of other shapes, such as oval, but this is without departing from the protection model of the present invention
Enclose.In fig. 2, backboard 5 is to realize boning by adhesive, hot melt or ultrasound with the downside of lower concave plane 4, adhesion strength 1~
30MPa, so as to form cavity between backboard and upper convex surface 3, certain both of which can also be entered using other fixed forms
Row connection, as long as ensureing that they can be stably connected with.Backboard 5 is non-woven fabrics, and male and fomale(M＆F) is answering for non-woven fabrics 2 and film layer 1
Close structure.The upside of male and fomale(M＆F) is film layer 1, and downside is non-woven fabrics 2, and two kinds of preparation method is optional, and one kind is flat composite membrane Jing
Special-shaped mould thermocompression forming is crossed, another kind is that non-woven fabrics is coated with film layer after special-shaped mould thermocompression forming.The film layer 1
Material can select the membrane material generally adopted in prior art, can be polysulfones, polyether sulfone, Kynoar, chlorinated polyethylene
The blending of one or more of alkene.For bonding firmly, the hot pressing temperature elects 60~220 DEG C as, and pressure is 0.05~
1.0MPa.The length of concave plane 4 is 2.0~5.0mm under the special-shaped film, in order to opening concentrated water outlet or making concentrated water runner complete
It is whole.The height of the special-shaped film upper convex surface 3 is 0.3~1.8mm, to ensure that producing water flow passage has enough support forces.It is described
Special-shaped film constitutional repeating unit 2.5~6.5mm of length.
With reference to Fig. 3, wound membrane element according to the embodiment of the present invention also includes Flat Membrane, and the Flat Membrane is by Flat Membrane
Non-woven fabrics 6 and Flat Membrane film layer 7 are constituted, and make special-shaped film and Flat Membrane corresponding with lower concave plane 4 on special-shaped film backboard 5 back-to-back
Place's bonding is (that is, make on the side with Flat Membrane non-woven fabrics 6 of flat board diaphragm and the backboard 5 of the special-shaped film with
The corresponding part adhesive in concave plane 4) sheet perineurium is formed, they are also to realize bonding by adhesive, hot melt or ultrasound, are glued
1~30MPa of knotting strength, so as to form product aquaporin, certain both of which can also be attached using other fixed forms, only
Ensure that they can be stably connected with.Sheet perineurium two ends are respectively water inlet end B and produce water end (W.E.) A (as shown in Figures 4 and 5),
Figure 3 illustrates special-shaped film and Flat Membrane tack line 8.
With reference to Fig. 4 and Fig. 5, wound membrane element according to the embodiment of the present invention also includes concentrated water outlet 9.Producing water end (W.E.)
A sides, are close to end sealing glue position C, trapezoidal cutting out are punched or carried out in the middle of adjacent product aquaporin and exports 9 to form concentrated water,
So as to construct complete concentrated water runner.Using mechanical punching, the mode of cutting out can be that ultrasonic wave is cut out to the hole knockout,
Can also be that computer laser is cut out, the hole shape can be the circular, mixing of the one or two kinds of shape of circular arc rectangle.Institute
State a diameter of 1.0~4.0mm of circular port；The width of the circular arc rectangular opening be 1.0~4.0mm, length be 3.0~
20.0mm.Of course, it is possible to using other punchings well known in the prior art and cutting method, the size and shape of concentrated water outlet 9
Can also be needed to carry out reasonable selection according to actual design, as long as ensure that to form complete concentrated water runner.
As shown in Figures 6 and 7, wound membrane element according to the embodiment of the present invention also includes intake end cover 11 and produces water end (W.E.)
Lid 10.In water inlet end B sides, aquaporin glue is produced in sheet perineurium one end and seals (as shown in Figure 8), reserve water inlet flow channel 12,
Then sheet perineurium rolls into cylinder.Cylinder perineurium two ends are trimmed using rotary saw blade, by cylinder perineurium water inlet end B
Fill in intake end cover 11 to fix, cylinder perineurium product water end (W.E.) A is filled in into the glue envelope of product water end (W.E.) lid 10 cutting exposes product water flow passage 13
(as shown in Figure 9), intake tunnel is sealed by glue, that is, complete the making of wound membrane element.
The wound membrane element of the present invention changes film bag shape, and realizing film bag itself can provide water inlet flow channel and produce water
Runner, eliminates central tube, water inlet filter and concentrated water filter, and having reached reduces the purpose of rolled film cost.Simultaneously by changing
Water flow passage mode is produced, film bag length is increased, the filling area of rolled film is improve.
The present invention can be embodied in other specific forms, but this is without departing from protection scope of the present invention, this
The protection domain of invention is defined only by the following claims.
Claims (10)
1. a kind of wound membrane element, it is to be rolled to form by sheet perineurium, and it includes special-shaped film, Flat Membrane, intake end cover and product
Water end (W.E.) lid, the special-shaped film is made up of male and fomale(M＆F) and backboard, and male and fomale(M＆F) includes upper convex surface and lower concave plane, and backboard is flat with recessed
Face downside is fixedly connected, and so as to form cavity between backboard and upper convex surface, backboard is non-woven fabrics, male and fomale(M＆F) be non-woven fabrics and
The composite construction of film layer, the upside of male and fomale(M＆F) is film layer, and downside is non-woven fabrics, and Flat Membrane is by Flat Membrane non-woven fabrics and Flat Membrane film
Layer is constituted, and special-shaped film is stacked in back-to-back on special-shaped film backboard with Flat Membrane and is fixedly connected so as to be formed with lower concave plane corresponding position
The sheet perineurium, sheet perineurium two ends are respectively water inlet end and produce water end (W.E.), are producing at the close end seal tree lace in water end (W.E.) side, in phase
Concentrated water outlet, the product aquaporin sealing of the sheet perineurium water inlet end side, the sheet are formed with the middle of adjacent product aquaporin
Water inlet end side arranges intake end cover after perineurium roll-forming, produces water end (W.E.) side and arranges product water end (W.E.) lid, and produces entering for water end (W.E.) side
Aquaporin is sealed.
2. wound membrane element according to claim 1, wherein the film layer of the film layer of the male and fomale(M＆F) and the Flat Membrane
Material is the blending of one or more of polysulfones, polyether sulfone, Kynoar, haloflex.
3. wound membrane element according to claim 1, wherein the backboard and the connection of lower concave plane and special-shaped film with
The connection of Flat Membrane is to realize bonding, 1~30MPa of adhesion strength by adhesive, hot melt or ultrasound.
4. wound membrane element according to claim 1, wherein the length of concave plane is 2.0~5.0mm under the special-shaped film；
The height of the special-shaped film upper convex surface is 0.3~1.8mm；The special-shaped film constitutional repeating unit 2.5~6.5mm of length.
5. the wound membrane element according to any one of claim 1-4, wherein described concentrated water outlet is by adjacent
Product aquaporin in the middle of punching or carry out trapezoidal cutting out and form.
6. a kind of method for coiling of wound membrane element, the method comprises the steps：
(1) preparation of special-shaped film：Special-shaped film is made up of backboard and male and fomale(M＆F), and backboard is non-woven fabrics, and male and fomale(M＆F) is non-woven fabrics and film
The composite construction of layer, backboard and male and fomale(M＆F) downside is fixedly connected, and the upside of male and fomale(M＆F) is film layer, and downside is non-woven fabrics, male and fomale(M＆F)
Including lower concave plane and upper convex surface, preparation method is that flat composite membrane is passed through through special-shaped mould thermocompression forming or non-woven fabrics
Film layer is coated with after special-shaped mould thermocompression forming；
(2) prepared by sheet perineurium：Special-shaped film is set to be stacked back-to-back with Flat Membrane, with lower concave plane corresponding position on special-shaped film backboard
It is connected so as to form the sheet perineurium, sheet perineurium two ends are respectively water inlet end and produce water end (W.E.)；
(3) concentrated water is portalled：Producing at the close end seal tree lace in water end (W.E.) side, concentrated water outlet formed in the middle of adjacent product aquaporin,
Construct complete concentrated water runner；
(4) perineurium is rolled：In water inlet end side, sheet perineurium is produced into aquaporin sealing, then sheet perineurium is rolled into into cylinder
Body；
(5) trimming end seal：Cylinder perineurium two ends are trimmed, cylinder perineurium water inlet end is filled in into end cap and is fixed, cylinder membranes
Beam produces water end (W.E.) to be filled in product water end (W.E.) lid glue envelope and cut exposes product water flow passage, produces the intake tunnel sealing of water end (W.E.) side.
7. method according to claim 6, wherein the hot pressing temperature is 60~220 DEG C, pressure is 0.05~1.0MPa.
8. the method according to claim 6 or 7, wherein the material of the film layer of the film layer of the male and fomale(M＆F) and the Flat Membrane
It is the blending of one or more of polysulfones, polyether sulfone, Kynoar, haloflex.
9. the method according to claim 6 or 7, wherein the connection of the backboard and lower concave plane and special-shaped film and flat board
The connection of film is to realize bonding, 1~30MPa of adhesion strength by adhesive, hot melt or ultrasound.
10. the method according to claim 6 or 7, wherein the length of concave plane is 2.0~5.0mm under the special-shaped film；Institute
The height for stating special-shaped film upper convex surface is 0.3~1.8mm；The special-shaped film constitutional repeating unit 2.5~6.5mm of length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270125.1A CN106669426B (en) | 2016-12-30 | 2016-12-30 | A kind of wound membrane element and its method for coiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270125.1A CN106669426B (en) | 2016-12-30 | 2016-12-30 | A kind of wound membrane element and its method for coiling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106669426A true CN106669426A (en) | 2017-05-17 |
| CN106669426B CN106669426B (en) | 2019-07-26 |
Family
ID=58849032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611270125.1A Active CN106669426B (en) | 2016-12-30 | 2016-12-30 | A kind of wound membrane element and its method for coiling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993166A (en) * | 2018-08-14 | 2018-12-14 | 三达膜科技（厦门）有限公司 | A kind of pollution-resistant rolled film water conservancy diversion filter |
| CN111417453A (en) * | 2017-11-15 | 2020-07-14 | 金昌龙 | Bendable flexible flat film module and method of manufacturing the same |
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| JPS55124513A (en) * | 1979-03-17 | 1980-09-25 | Nitto Electric Ind Co Ltd | Membrane separation module |
| EP0120264A2 (en) * | 1983-02-24 | 1984-10-03 | Hoechst Aktiengesellschaft | Cross flow module with fine canals |
| JPH02194822A (en) * | 1989-01-23 | 1990-08-01 | Kurita Water Ind Ltd | Spiral-type membrane module |
| CN102574068A (en) * | 2010-04-16 | 2012-07-11 | 旭化成化学株式会社 | Deformed porous hollow fiber membrane, production method of deformed porous hollow fiber membrane, and module, filtration device, and water treatment method in which deformed porous hollow fiber membrane is used |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111417453A (en) * | 2017-11-15 | 2020-07-14 | 金昌龙 | Bendable flexible flat film module and method of manufacturing the same |
| CN111417453B (en) * | 2017-11-15 | 2022-05-17 | 金昌龙 | Bendable flexible flat film module and method of manufacturing the same |
| CN108993166A (en) * | 2018-08-14 | 2018-12-14 | 三达膜科技（厦门）有限公司 | A kind of pollution-resistant rolled film water conservancy diversion filter |
| CN108993166B (en) * | 2018-08-14 | 2023-11-21 | 三达膜科技（厦门）有限公司 | Anti-pollution formula roll-type membrane water conservancy diversion separates net |
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| Publication number | Publication date |
|---|---|
| CN106669426B (en) | 2019-07-26 |
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