CN115350593B - Method for manufacturing rolled film element and obtained rolled film element - Google Patents
Method for manufacturing rolled film element and obtained rolled film element Download PDFInfo
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- CN115350593B CN115350593B CN202210906160.7A CN202210906160A CN115350593B CN 115350593 B CN115350593 B CN 115350593B CN 202210906160 A CN202210906160 A CN 202210906160A CN 115350593 B CN115350593 B CN 115350593B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 13
- 239000012528 membrane Substances 0.000 claims abstract description 200
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 196
- 239000004744 fabric Substances 0.000 claims abstract description 58
- 238000001914 filtration Methods 0.000 claims abstract description 42
- 238000010030 laminating Methods 0.000 claims abstract description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 16
- 238000001223 reverse osmosis Methods 0.000 claims description 5
- 238000001728 nano-filtration Methods 0.000 claims description 4
- 239000012466 permeate Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 7
- 125000006850 spacer group Chemical group 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B01D63/10—Spiral-wound membrane modules
- B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2649—Filtration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a manufacturing method of a rolled film element, which comprises the following steps: one end of a first pure water guide cloth A is fixed on a first half pipe; sequentially stacking a first membrane A, a water inlet filter screen and a second membrane A on a first half pipe and a first pure water guide cloth A; the second half pipe is buckled and connected to the first half pipe to form a central pipe, so that the first half pipe and the second half pipe jointly clamp the first membrane A, the water inlet filter screen and the second membrane A; one end of the second pure water guide cloth A is fixed on the second half pipe; preparing a second membrane group; sequentially laminating a plurality of second membrane groups on the second pure water guide cloth A; preparing a first membrane group; sequentially laminating a plurality of first film groups on a first pure water guide A; rotating the central tube to roll; the rolled membrane element has two kinds of filtering spiral channels, and the water inlet filter screen separates the two kinds of filtering spiral channels to avoid mutual influence, so that two kinds of water in different quality can be filtered out on one kind of rolled membrane element.
Description
Technical Field
The invention relates to the technical field of filtering membranes, in particular to a manufacturing method of a rolled membrane element and the rolled membrane element.
Background
The current main stream water purifier in the household water purification market is a reverse osmosis water purifier, is deeply favored by users due to extremely high filtering precision and service cycle, and is expected to become a new trend in the future along with the further pursuit of healthy water by people, namely, the requirement that people can use water with different water qualities in different life scenes is met. The main current methods for adjusting the water quality are as follows: the water purifier is simultaneously provided with the membrane elements with different filtering precision for water quality filtering adjustment, so that the problems that the size of the water purifier is overlarge, the manufacturing cost is overlarge, the waterway system is complex, and the maintenance is difficult and the like are unavoidable.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides a manufacturing method of a rolled film element and the obtained rolled film element, and the method is characterized in that by innovating the manufacturing method of the rolled film element, the rolled film element capable of filtering out two different water qualities simultaneously is manufactured, two different water qualities can be filtered out simultaneously on one rolled film element, and the two water qualities are not interfered with each other in the filtering process.
In a first aspect, an embodiment of the present invention provides a method for manufacturing a rolled film element, including the steps of:
one end of a first pure water guide cloth A is fixed on a first half pipe;
sequentially stacking a first membrane A, a water inlet filter screen and a second membrane A on the first half pipe and the first pure water guide cloth A, wherein the back surface of the first membrane A faces the first half pipe, and the front surface of the second membrane A faces the first half pipe;
the second half pipe is buckled and connected to the first half pipe to form a central pipe, so that the first half pipe and the second half pipe jointly clamp the first membrane A, the water inlet filter screen and the second membrane A;
one end of the second pure water guide cloth A is fixed on the second half pipe;
preparing a second membrane group, wherein the second membrane group comprises a second membrane piece B, a second water inlet separation net and a second pure water guide cloth B;
sequentially laminating a plurality of second membrane groups on the second pure water guide cloth A;
preparing a first membrane group, wherein the first membrane group comprises a first membrane piece B, a first water inlet separation net and a first pure water guide cloth B;
sequentially laminating a plurality of first film groups on the first pure water guide cloth A;
and (5) rotating the central tube to roll.
The manufacturing method of the rolled film element provided by the embodiment of the invention has at least the following technical effects: the manufacturing method can add a filtering spiral channel on the basis of the original rolling membrane element, the rolling membrane element after rolling is provided with two filtering spiral channels, and a water inlet filter screen separates the two filtering spiral channels from each other so that the two filtering spiral channels are not affected by each other, and thus, two different water qualities can be filtered out on one rolling membrane element at the same time.
According to some embodiments of the invention, the preparing the first film set comprises: and folding the front surface of the first film B in half, inserting and fixing the first water inlet separation net between the opposite front surfaces, and fixedly laminating the first pure water guide cloth B on one of the back surfaces of the first film B.
According to some embodiments of the present invention, the folded edge of the folded first film member B is a first folded edge, the first film member B is divided into a first film sheet a and a first film sheet B by using the first folded edge as a dividing line, the first folded edge is located at a side close to the first half pipe, and the reverse side of the first film sheet B is glued and fixed with the first pure water guide B.
According to some embodiments of the invention, the first membrane group and the first pure water guide a are connected in the following manner: and the back surface of the first film sheet A in the first film group is fixed with the first pure water guide cloth A in a gluing manner.
According to some embodiments of the invention, the connection between the two first membrane groups is as follows: and the first pure water guide cloth B of one first film group is glued and fixed with the first film page A of the other first film group.
According to some embodiments of the invention, the preparing the second film set comprises: and folding the front surface of the second film member B in half, inserting and fixing the second water inlet separation net between the opposite front surfaces, and fixedly laminating the second pure water guide cloth B on one of the back surfaces of the second film member B.
According to some embodiments of the present invention, the folded edge of the second film member B is a second folded edge, the second film member B is divided into a second film sheet a and a second film sheet B by using the second folded edge as a dividing line, the second folded edge is located at a side close to the second half pipe, and the reverse side of the second film sheet a is fixed with the second pure water guide B by gluing.
According to some embodiments of the invention, the second membrane group and the second pure water guide a are connected in the following manner: and the back surface of the second film sheet B in the second film group is fixed with the second pure water guide cloth A in a gluing way.
According to some embodiments of the invention, the connection between the two second membrane groups is as follows: and the second pure water guide cloth B of one second film group is fixed with the second film page B of the other second film group by gluing.
In a second aspect, an embodiment of the present invention further provides a rolled film element, which is manufactured by using the manufacturing method of the rolled film element according to the embodiment of the first aspect of the present invention.
The rolled film element provided by the embodiment of the invention has at least the following technical effects: the coiled membrane element manufactured by the manufacturing method is provided with two filtering spiral channels, and the two filtering spiral channels are separated by the water inlet filter screen, so that the two filtering spiral channels are not mutually influenced, and two different water qualities can be filtered out on the coiled membrane element at the same time.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow chart of a method of making a rolled film element according to some embodiments of the invention;
FIG. 2 is a schematic illustration of the rolled film element of some embodiments of the present invention after unrolling;
FIG. 3 is a schematic view of a rolled film element according to some embodiments of the present invention at another angle after unrolling;
FIG. 4 is a schematic view of the structure of the first membrane A, the second membrane A and the water inlet screen rolled on the central tube according to some embodiments of the present invention;
FIG. 5 is a schematic illustration of the structure of a first membrane set according to some embodiments of the invention;
fig. 6 is a schematic diagram of a second membrane set according to some embodiments of the invention.
Reference numerals:
the first half pipe 100, the first pure water guide cloth A110, the first pure water guide cloth B120, the first membrane piece A130, the first membrane piece B140, the first folding edge 150, the first membrane page A160, the first membrane page B170, the first water inlet separation net 180 and the first membrane group 190;
a second half pipe 200, a second pure water guide cloth A210, a second pure water guide cloth B220, a second membrane piece A230, a second membrane piece B240, a second flange 250, a second membrane page A260, a second membrane page B270, a second water inlet separation net 280 and a second membrane group 290;
a water inlet filter screen 310, a first filtering spiral channel 320, a second filtering spiral channel 330, a glue line 340 and a central tube 350.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, left, right, front, rear, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and the above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Embodiments of the present invention will be further described below with reference to the accompanying drawings.
According to some embodiments of the present invention, referring to fig. 1 to 6, a method of manufacturing a rolled film element includes the steps of:
one end of the first pure water cloth guide a110 is fixed to the first half pipe 100;
sequentially stacking a first membrane A130, a water inlet filter screen 310 and a second membrane A230 on the first half pipe 100 and the first pure water guide cloth A110, wherein the back surface of the first membrane A130 faces the first half pipe 100, and the front surface of the second membrane A230 faces the first half pipe 100;
the second half pipe 200 is fastened to the first half pipe 100 to form a central pipe 350, so that the first half pipe 100 and the second half pipe 200 jointly clamp the first membrane a130, the water inlet filter 310 and the second membrane a230;
one end of the second pure water cloth guide a210 is fixed to the second half pipe 200;
preparing a second membrane group 290, wherein the second membrane group 290 comprises a second membrane piece B240, a second water inlet separation net 280 and a second pure water guide cloth B220;
sequentially stacking a plurality of second film sets 290 on the second pure water guide a 210;
preparing a first membrane group 190, wherein the first membrane group 190 comprises a first membrane piece B140, a first water inlet separation net 180 and a first pure water guide cloth B120;
sequentially laminating a plurality of first membrane groups 190 on the first pure water guide a 110;
the center tube 350 is rotated to roll.
It should be noted that, referring to fig. 2 and 3, the shapes of the first membrane a130, the water inlet screen 310 and the second membrane a230 are rectangular, the extending direction of the first half pipe 100 coincides with the extending direction of the short side of the first membrane a130, the extending direction of the short side of the water inlet screen 310 and the extending direction of the short side of the second membrane a230, and the first half pipe 100 is located at the middle parts of the first membrane a130, the water inlet screen 310 and the second membrane a230 at the same time, that is, the first membrane a130, the water inlet screen 310 and the second membrane a230 are all divided into two parts uniformly with the first half pipe 100 as a symmetry axis and distributed on the left and right sides of the first half pipe 100.
It should be further noted that, the first membrane a130, the first membrane B140, the second membrane a230, and the second membrane B240 are conventional filtration membranes, and the filtration membranes are divided into a front side and a back side, and the principle of filtering raw water is as follows: raw water flows on the front surface of the filtering membrane, then part of raw water permeates the filtering membrane to reach the side of the back surface of the filtering membrane, pure water guiding cloth is fixedly adhered to the back surface of the filtering membrane, and pure water permeated to reach the back surface of the filtering membrane can reach the inside of the central tube 350 along the pure water guiding cloth.
It should be further noted that, referring to fig. 4, after the first membrane element a130, the water inlet filter screen 310 and the second membrane element a230 are rolled around the central tube, the gap between the water inlet filter screen 310 and the first membrane element a130 is the first filter spiral channel 320, the gap between the water inlet filter screen 310 and the second membrane element a230 is the second filter spiral channel 330, two sides in the first filter spiral channel 320 are opposite sides of the first membrane element a130, two sides in the second filter spiral channel 330 are opposite sides of the second membrane element a230, and when the raw water permeates from the front to the opposite sides to form pure water, the pure water reaches the first filter spiral channel 320 or the second filter spiral channel 330, and then enters the central tube through the spiral channel.
It should be noted that, referring to fig. 2 and 3, the shape of the first pure water guide cloth a110 is rectangular, one of the two short sides of the first pure water guide cloth a110 is welded to the first half pipe 100, and the first pure water guide cloth a110 is straightened for subsequent rolling; the second pure water guide cloth a210 has a rectangular shape, and one of the two short sides of the second pure water guide cloth a210 is welded to the second half pipe 200.
It should be further noted that, referring to fig. 2 and 3, before rolling, the first membrane element a130, the water inlet screen 310 and the second membrane element a230 are located between the first half pipe 100 and the second half pipe 200, the first membrane element a130 is located at a side close to the first half pipe 100, the second membrane element a230 is located at a side close to the second half pipe 200, the water inlet screen 310 is located between the first membrane element a130 and the second membrane element a230, the reverse surface of the first membrane element a130 faces the first half pipe 100, and the reverse surface of the second membrane element a230 faces the second half pipe 200.
It should be noted that, the filtration membranes in the first membrane element a130 and the first membrane group 190 are all reverse osmosis membranes, and the filtration membranes in the second membrane element a230 and the second membrane group 290 are all nanofiltration membranes.
According to some embodiments of the invention, referring to fig. 2, 3 and 5, preparing the first membrane set 190 includes: the front surface of the first film member B140 is folded in half, and the first water inlet spacer 180 is interposed and fixed between the opposite front surfaces, and the first pure water guide B120 is fixedly laminated on the rear surface of the first film member B140 by gluing.
Note that, the shapes of the first pure water guide B120, the first membrane B140, and the first water inlet spacer 180 are rectangular, and referring to fig. 5, the glue line 340 between the first pure water guide B120 and the first membrane B140 is formed by connecting two long sides and one short side of the first pure water guide B120, and the short side of the first pure water guide B120, which is not the glue line 340, is connected to the first half pipe 100.
It will be appreciated that in the first membrane module 190, raw water flows into the inside opposite to the front side of the first membrane B140, then raw water flows between the front side of the first membrane B140 and the first water inlet spacer 180, then raw water permeates from the front side to the back side of the first membrane B140 to form pure water, pure water flows between the back side of the first membrane B140 and the first pure water guide B120, and pure water enters the first half pipe 100 under the guide of the first pure water guide B120.
It is also understood that since the openings of the bonding wires of the first pure water guide B120 and the first film member B140 are located at the side of the first pure water guide B120 connected to the first half pipe 100, the first pure water guide B120 can guide the pure water to flow into the first half pipe 100.
According to some embodiments of the present invention, referring to fig. 2, 3 and 5, the folded edge of the folded first film member B140 is a first folded edge 150, the first film member B140 is divided into a first film sheet a160 and a first film sheet B170 by using the first folded edge 150 as a dividing line, the first folded edge 150 is located at a side close to the first half pipe 100, and the opposite side of the first film sheet B170 is fixed with the first pure water guide B120 by gluing.
Referring to fig. 2 and 3, the first membrane group 190 and the first pure water guide a110 are connected in the following manner: the back surface of a first film page A160 in the first film group 190 is glued and fixed with a first pure water guide A110; it is understood that raw water may permeate from the front side of the first membrane sheet a160 to the rear side of the first membrane sheet a160 in the first membrane group 190, then reach between the first pure water guide a110 and the rear side of the first membrane sheet a160, and then enter the first half pipe 100 under the guide of the first pure water guide a 110;
it should be further noted that, referring to fig. 2 and 3, the connection manner between the two first film groups 190 is: the connection manner between the two first membrane groups 190 is as follows: the first pure water guide B120 of one first membrane group 190 is fixed with the first membrane sheet a160 of the other first membrane group 190 by gluing, it is understood that raw water may permeate from the front surface of the first membrane sheet a160 to the back surface of the first membrane sheet a160 in one first membrane group 190, then reach the first pure water guide B120 of the other adjacent first membrane group 190, and then enter the first half pipe 100 under the guidance of the first pure water guide B120.
According to some embodiments of the invention, referring to fig. 2, 3 and 6, preparing the second film set 290 includes: the front surface of the second film member B240 is folded in half, and the second water inlet spacer 280 is interposed between the opposite front surfaces, and the second pure water guide B220 is fixedly laminated on the opposite surface of the second film member B240 by gluing.
Note that, the shapes of the second membrane B240, the second water inlet spacer 280 and the second pure water guide B220 are rectangular, and referring to fig. 6, the glue line 340 between the second pure water guide B220 and the second membrane B240 is formed by connecting two long sides and one short side of the second pure water guide B220, and the short side of the second pure water guide B220, which is not the glue line 340, is connected to the second half pipe 200.
It will be appreciated that in the second membrane group 290, raw water flows into the inside opposite to the front side of the second membrane element B240, then raw water flows between the front side of the second membrane element B240 and the second water inlet spacer 280, then raw water permeates from the front side to the back side of the second membrane element B240 to form pure water, pure water flows between the back side of the second membrane element B240 and the second pure water guide B220, and pure water enters the second half pipe 200 under the guide of the second pure water guide B220.
It is also understood that since the openings of the bonding wires of the second pure water guide B220 and the second film member B240 are located at the side of the second pure water guide B220 connected to the second half pipe 200, the second pure water guide B220 can guide the pure water to flow into the second half pipe.
According to some embodiments of the present invention, referring to fig. 2, 3 and 6, the folded edge of the second film member B240 after being folded into two is a second folded edge 250, the second film member B240 is divided into a second film sheet a260 and a second film sheet B270 by using the second folded edge 250 as a dividing line, the second folded edge 250 is located at a side close to the second half pipe 200, and the opposite side of the second film sheet a260 is fixed with the second pure water guide B220 by gluing.
Referring to fig. 2 and 3, the connection between the second membrane group 290 and the second pure water guide a210 is as follows: the back surface of a second film sheet B270 in the second film group 290 is fixed with the second pure water guide cloth A210 by gluing; it is understood that raw water may permeate from the front side of the second membrane sheet B270 of the second membrane group 290 to the rear side of the second membrane sheet B270, then reach between the second pure water guide a210 and the rear side of the second membrane sheet B270, and then enter the second half pipe 200 under the guide of the second pure water guide a 100.
It should be further noted that, referring to fig. 2 and 3, the connection manner between the two second film groups 290 is: the second pure water guide cloth B220 of one second film group 290 is glued and fixed with the second film page B270 of the other second film group 290; it will be appreciated that raw water may permeate from the front side of the second membrane sheet B270 in one second membrane group 290 to the back side of the second membrane sheet B270, then reach the second pure water guide B220 of another adjacent second membrane group 290, and then enter the second half pipe 200 under the guidance of this second return guide B220.
According to some embodiments of the present invention, referring to fig. 2 and 3, the roll film element manufacturing process is:
clamping the first half pipe 100, and fixing one end of the first pure water guide cloth A110 on the first half pipe 100;
the first membrane A130, the water inlet filter screen 310 and the second membrane A230 are sequentially stacked from bottom to top and are arranged above the first half pipe 100 and the first pure water guide cloth A110, so that the back surface of the first membrane A130 faces the first half pipe 100, and the front surface of the second membrane A230 faces the first half pipe 100;
the second half pipe 200 is buckled and connected to the first half pipe 100, and one end of the second pure water guide cloth A210 is fixed on the second half pipe 200;
oppositely doubling the front surface of a second film member B240, then gluing and fixing one back surface of the second film member B240 on the upper side of the second pure water guide cloth A210, ensuring that the second flange 250 of the second film member B240 is positioned on the side close to the second half pipe 200, inserting a second water inlet separation net 280 between the opposite front surfaces of the second film member B240, laminating and gluing the second pure water guide cloth B220 on the upper surface of the second film member B240, and forming a second film group 290 by the second film member B240, the second pure water guide cloth B220 and the second water inlet separation net 280; by analogy, a plurality of second film sets 290 may be stacked;
the front surface of a first film member B140 is oppositely folded in half, then one back surface of the first film member B140 is glued and fixed on the lower side of the first pure water guide cloth a110, to ensure that the first folded edge 150 of the first film member B140 is positioned near one side of the first half pipe 100, then a first water inlet separation net 180 is inserted between the opposite front surfaces of the first film member B140, then the first pure water guide cloth B120 is laminated and glued and fixed on the lower side of the first film member B140, and the first pure water guide cloth B120, the first film member B140 and the first water inlet separation net 180 form a first film group 190; by analogy, a plurality of first membrane groups 190 may be stacked;
finally, rolling is performed counterclockwise along the center tube 350.
The upper, lower, etc. orientations in fig. 2 and 3 do not represent the actual orientations in which the roll film element is manufactured by the method.
It should be noted that, the first membrane element a130 and the first membrane element B140 are reverse osmosis membranes, and the second membrane element a230 and the second membrane element B240 are nanofiltration membranes. Thus, two different water qualities can be filtered out simultaneously.
It should be noted that, the first film set 190 or the second film set 290 may be manufactured completely and separately, and then the first film set 190 or the second film set 290 may be glued and fixed on a designated element; it is also possible to fix the first membrane module 190 or the second membrane module 290 to a designated element directly during the process of preparing them.
According to some embodiments of the present invention, referring to fig. 3 and 4, the filtering membrane types of the first membrane a130 and the first membrane B140 are the same, and are the first filtering membranes; the second membrane element a230 and the second membrane element B240 have the same filtration membrane, and are second filtration membranes.
When the first membrane module 190 and the second membrane module 290 are not arranged, the gap between the opposite sides of the first membrane element A130 is a first filtering spiral channel 320, the gap between the opposite sides of the second membrane element A230 is a second filtering spiral channel 330, a first pure water guide cloth A110 is arranged in the first filtering spiral channel 320 to guide pure water into the first half pipe 100, and a second pure water guide cloth A210 is arranged in the second filtering spiral channel 330 to guide pure water into the second half pipe 200; for convenience of viewing, fig. 4 depicts the first membrane a130, the second membrane a230, and the water inlet screen 310 together rolled around the central tube 350, while the first pure water guide a110 and the second pure water guide a210 are hidden, and the water inlet screen 310 separates the first filter spiral channel 320 and the second filter spiral channel 330 from each other, without affecting each other.
It should be understood that when a plurality of first membrane modules 190 and a plurality of second membrane modules 290 are provided, there are a plurality of first filter spiral channels 320 and a plurality of second filter spiral channels 330, and the filtering principles of the first membrane modules 190 and the second membrane modules 290 are described above and are not repeated herein.
In the description of the present specification, reference to the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A method of making a rolled film element, comprising the steps of:
one end of a first pure water guide cloth A (110) is fixed on a first half pipe (100);
sequentially stacking a first membrane A (130), a water inlet filter screen (310) and a second membrane A (230) on the first half pipe (100) and the first pure water guide cloth A (110), wherein the back surface of the first membrane A (130) faces the first half pipe (100), and the front surface of the second membrane A (230) faces the first half pipe (100);
a second half pipe (200) is buckled and connected to the first half pipe (100) to form a central pipe (350), so that the first half pipe (100) and the second half pipe (200) jointly clamp the first membrane A (130), the water inlet filter screen (310) and the second membrane A (230);
one end of a second pure water guide cloth A (210) is fixed on a second half pipe (200);
preparing a second membrane set (290), wherein the second membrane set (290) comprises a second membrane piece B (240), a second water inlet separation net (280) and a second pure water guide cloth B (220), and the method comprises the following steps: folding the front surface of the second film member B (240) in half, inserting and fixing the second water inlet separation net (280) between the opposite front surfaces, and fixedly laminating the second pure water guide cloth B (220) on one of the back surfaces of the second film member B (240); the folded edge of the second film piece B (240) after folding is a second folded edge (250), the second film piece B (240) is divided into a second film sheet A (260) and a second film sheet B (270) by taking the second folded edge (250) as a dividing line, the second folded edge (250) is positioned at one side close to the second half pipe (200), and the reverse side of the second film sheet A (260) is fixed with the second pure water guide cloth B (220) through gluing;
sequentially laminating a plurality of second film groups (290) on the second pure water guide A (210);
preparing a first membrane group (190), wherein the first membrane group (190) comprises a first membrane piece B (140), a first water inlet separation net (180) and a first pure water guide cloth B (120), and the method comprises the following steps: folding the front surface of the first film member B (140) in half, inserting and fixing the first water inlet separation net (180) between the opposite front surfaces, and fixedly laminating the first pure water guide cloth B (120) on one of the back surfaces of the first film member B (140); the folded edge of the folded first film piece B (140) is a first folded edge (150), the first film piece B (140) is divided into a first film sheet A (160) and a first film sheet B (170) by taking the first folded edge (150) as a dividing line, the first folded edge (150) is positioned at one side close to the first half pipe (100), and the reverse side of the first film sheet B (170) is fixed with the first pure water guide cloth B (120) in a gluing way;
sequentially laminating a plurality of first film groups (190) on the first pure water guide A (110);
the central tube (350) is rotated to be rolled, wherein the types of filter membranes of the first membrane A (130) and the first membrane B (140) are the same, and the filter membranes are first filter membranes; the filtering membranes of the second membrane A (230) and the second membrane B (240) are the same, and are second filtering membranes; when the first filtering membrane is a reverse osmosis membrane, the second filtering membrane is a nanofiltration membrane; when the first filtering membrane is a nanofiltration membrane, the second filtering membrane is a reverse osmosis membrane.
2. The method for manufacturing a rolled film element according to claim 1, wherein the first film group (190) and the first pure water guide a (110) are connected in the following manner: and the back surface of the first film sheet A (160) in the first film group (190) is fixed with the first pure water guide A (110) by gluing.
3. The method of manufacturing a rolled film element according to claim 1, wherein the connection between the two first film groups (190) is as follows: the first pure water guide cloth B (120) of one first film group (190) and the first film page A (160) of the other first film group (190) are fixed by gluing.
4. The method for manufacturing a rolled film element according to claim 1, wherein the connection manner of the second film group (290) and the second pure water guiding cloth a (210) is as follows: and the back surface of the second film sheet B (270) in the second film group (290) is fixed with the second pure water guide A (210) by gluing.
5. The method of manufacturing a rolled film element according to claim 1, wherein the connection between the two second film groups (290) is as follows: the second pure water guide cloth B (220) of one second film group (290) and the second film page B (270) of the other second film group (290) are fixed by gluing.
6. A rolled film element produced by the method of any one of claims 1 to 5.
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| CN202210906160.7A CN115350593B (en) | 2022-07-29 | 2022-07-29 | Method for manufacturing rolled film element and obtained rolled film element |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335554A (en) * | 2011-08-30 | 2012-02-01 | 华北电力大学 | Integrative roll-type membrane component with ultraviolet disinfection |
| CN202700375U (en) * | 2012-08-09 | 2013-01-30 | 厦门市威士邦膜科技有限公司 | Spiral coil type membrane assembly |
| CN111715077A (en) * | 2020-03-25 | 2020-09-29 | 苏州滨特尔水处理有限公司 | Lateral flow type water purification membrane structure and filter element |
| CN211620014U (en) * | 2019-12-06 | 2020-10-02 | 苏州滨特尔水处理有限公司 | Side-flow reverse osmosis membrane structure |
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2022
- 2022-07-29 CN CN202210906160.7A patent/CN115350593B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335554A (en) * | 2011-08-30 | 2012-02-01 | 华北电力大学 | Integrative roll-type membrane component with ultraviolet disinfection |
| CN202700375U (en) * | 2012-08-09 | 2013-01-30 | 厦门市威士邦膜科技有限公司 | Spiral coil type membrane assembly |
| CN211620014U (en) * | 2019-12-06 | 2020-10-02 | 苏州滨特尔水处理有限公司 | Side-flow reverse osmosis membrane structure |
| CN111715077A (en) * | 2020-03-25 | 2020-09-29 | 苏州滨特尔水处理有限公司 | Lateral flow type water purification membrane structure and filter element |
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