CN105771656B - Reverse osmosis membrane assembly and preparation method thereof - Google Patents
Reverse osmosis membrane assembly and preparation method thereof Download PDFInfo
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- CN105771656B CN105771656B CN201610280241.5A CN201610280241A CN105771656B CN 105771656 B CN105771656 B CN 105771656B CN 201610280241 A CN201610280241 A CN 201610280241A CN 105771656 B CN105771656 B CN 105771656B
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- 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
- B01D61/08—Apparatus therefor
-
- 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
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/061—Manufacturing thereof
-
- 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
- B01D63/06—Tubular membrane modules
- B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
- B01D63/065—Tubular membrane modules with membranes on a surface of a support tube on the outer surface thereof
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/06—External membrane module supporting or fixing means
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of reverse osmosis membrane assembly and preparation method thereof, reverse osmosis membrane assembly includes: at least two reverse osmosis membrane units, and each reverse osmosis membrane unit has the unit pure water runner positioned at the unit raw water runner of its face side and positioned at its back side；The unit raw water runner of each reverse osmosis membrane unit is connected；The unit pure water runner of each reverse osmosis membrane unit is isolated.Embodiments herein has at least the following advantages using the above structure: in the case where a possibility that the surface velocity for improving reverse osmosis membrane assembly reduces surface depositing contaminants, it is ensured that or even improved the utilization rate and pure water flow of diaphragm；It can be under conditions of meeting pure water flow, it is possible to reduce the number of pages of diaphragm extends the length of single page diaphragm, to further increase membrane surface flow velocity, improves membrane component contamination resistance；In the case that membrane surface flow velocity in the application embodiment reaches requirement, the reverse osmosis membrane assembly in the application embodiment improves pure water flow.
Description
Technical field
The present invention relates to technical field of membrane separation more particularly to a kind of reverse osmosis membrane assembly and preparation method thereof.
Background technique
In general, reverse osmosis membrane assembly has raw water runner and pure water runner corresponding with the raw water runner.It needs
The entrance of the raw water of filtering from raw water runner enters raw water runner, then enters through after the diaphragm block of membrane component as pure water
Pure water runner, at the same time, waste water are flowed out in the raw water flow passage side of diaphragm from the outlet of raw water runner.
In the prior art, it finds after study, the performance of reverse osmosis membrane assembly also has the space that improves.For example,
After long-time use or in other cases, the surface of reverse osmosis membrane assembly is also possible to be attached with pollutant.Again
For example, the pure water flow of reverse osmosis membrane assembly is not satisfactory yet.For another example the wound membrane number of pages in reverse osmosis membrane assembly is more,
The winding difficulty of reverse osmosis membrane assembly is higher.More for example, the diaphragm length in reverse osmosis membrane assembly is shorter, the utilization rate of diaphragm is not
It is high.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, technical problem to be solved by the invention is to provide a kind of reverse osmosis
Membrane module and preparation method thereof can solve at least one of above problem.
The specific technical solution of the present invention is:
A kind of reverse osmosis membrane assembly, the reverse osmosis membrane assembly include:
At least two reverse osmosis membrane units, each reverse osmosis membrane unit have the unit raw water stream positioned at its face side
Road and unit pure water runner positioned at its back side；
The unit raw water runner of each reverse osmosis membrane unit is connected；
The unit pure water runner of each reverse osmosis membrane unit is isolated.
Preferably, each reverse osmosis membrane unit includes the diaphragm that two fronts are oppositely arranged, the back side of the diaphragm
A side formed unit pure water runner pure water outlet；The unit raw water runner is formed in the interior of the reverse osmosis membrane unit
Side；The unit pure water runner is formed in the outside of the reverse osmosis membrane unit.
Preferably, the reverse osmosis membrane assembly includes two reverse osmosis membrane units, two reverse osmosis membrane units
Pure water outlet be away from each other.
Preferably, the unit raw water runner of two reverse osmosis membrane units is connected to form raw water channel, and the raw water is logical
The entrance in road, the outlet of the raw water runner and the pure water outlet are located at the different side of the reverse osmosis membrane assembly.
Preferably, the outlet of the entrance of the raw water runner and the raw water runner closes on a pure water outlet respectively.
Preferably, the reverse osmosis membrane assembly includes central tube, and the reverse osmosis membrane unit winding is arranged at the center
Guan Shang.
Preferably, the central tube has the water outlet being connected to the pure water outlet of reverse osmosis membrane unit described in one of them
Chamber, the pure water outlet of another reverse osmosis membrane unit are located at the side of the reverse osmosis membrane assembly.
Preferably, the outlet of the water chamber of the central tube is located at the end of the central tube.
Preferably, the reverse osmosis membrane assembly includes the shell being arranged in outside the reverse osmosis membrane unit, the shell
The water outlet being connected to the pure water outlet of reverse osmosis membrane unit described in another is offered on wall surface.
Preferably, the inner wall of the shell and the outer wall of the reverse osmosis membrane unit abut against.
Preferably, the reverse osmosis membrane assembly includes the support device being arranged in outside the reverse osmosis membrane unit.
Preferably, the support device includes the bundle line and/or sleeve being wrapped in outside the reverse osmosis membrane unit.
Preferably, the reverse osmosis membrane assembly includes the first reverse osmosis membrane unit and the second reverse osmosis membrane unit, in exhibition
First reverse osmosis membrane unit of open state includes the first sheet material portion and side and the edge for being connected to first sheet material portion
Second sheet material portion made of first axle turns down from the outside to the core, second reverse osmosis membrane unit in unfolded state include connecting
Connect the other side in first sheet material portion third sheet material portion and be connected to the side in third sheet material portion and along second
4th sheet material portion made of axis turns down from the outside to the core, the positive phase in the front and second sheet material portion in first sheet material portion
Right, the front in third sheet material portion and the front in the 4th sheet material portion are opposite, and second sheet material portion has and described the
One sheet material portion connection first side and the second side opposite with the first side, the 4th sheet material portion have with it is described
The third side of third sheet material portion connection and the four side opposite with the third side, the central tube are located at described second
The back side of the first side in sheet material portion is wound to the second side with second sheet material portion reverse osmosis membrane assembly
The back side be connected, then be wound into after the back side in the second sheet material portion is connect with the back side of the four side in the 4th sheet material portion
Type.
Preferably, first sheet material portion, second sheet material portion, third sheet material portion and the 4th sheet material portion
It is folded by a composite membrane.
Preferably, the back side of the four side at the back side of the second side in second sheet material portion and third sheet material portion
It is tightly connected respectively with reel made of central tube winding.
Preferably, the reverse osmosis membrane assembly includes the diaphragm and central tube opposite by two fronts, two diaphragms
The back side on the central tube after at least two unit pure water runners are isolated by sealing.
A kind of preparation method of reverse osmosis membrane assembly, it the following steps are included:
One composite membrane is turned down into formation first along the first axle and second axis for being parallel to its short side axis from the outside to the core
Sheet material portion, the second sheet material portion, third sheet material portion and the 4th sheet material portion, front and second sheet material portion in first sheet material portion
Front it is opposite, the front in third sheet material portion and the front in the 4th sheet material portion are opposite, first sheet material portion and institute
State the interconnection of third sheet material portion；
Composite membrane is inwardly wound by the outside at central tube from the back side in second sheet material portion to the second sheet material
The inside at the back side in portion forms reel；
The inside at the back side in the second sheet material portion and reel are tightly connected；
After the inside at the back side in the second sheet material portion and reel are tightly connected, by the inside at the back side in third sheet material portion and volume
Cylinder is tightly connected；
After the inside at the back side in third sheet material portion and reel are tightly connected, the inside from the back side of the third sheet material is right
Reel is wound molding.
A kind of preparation method of reverse osmosis membrane assembly, it the following steps are included:
Two diaphragm fronts are opposite；
Seal the corresponding front of short side of two diaphragms；
Two diaphragms are wound from the side short side at the back side of two diaphragms by central tube；
After the coiling, the unit pure water runner of two isolation is formed by sealing；
After forming the unit pure water runner of isolation, coiling and molding.
Embodiments herein has at least the following advantages using the above structure:
1, it in the case where a possibility that the surface velocity for improving reverse osmosis membrane assembly reduces surface depositing contaminants, also protects
Card has even improved the utilization rate and pure water flow of diaphragm；
It 2, can be under conditions of meeting pure water flow, it is possible to reduce the number of pages of diaphragm extends the length of single page diaphragm, from
And membrane surface flow velocity is further increased, to improve membrane component contamination resistance；
3, it is anti-in the application embodiment in the case that the membrane surface flow velocity in the application embodiment reaches requirement
Permeable membrane element shortens the length of pure water runner, to improve pure water flow.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 shows a specific embodiment of the application reverse osmosis membrane assembly.
Fig. 2 shows the schematic diagrames of the unit raw water runner for the inside for being located at reverse osmosis membrane unit in Fig. 1.
Fig. 3 show in figure in the outside of reverse osmosis membrane unit unit pure water runner schematic diagram.
Fig. 4 shows the another embodiment of the application reverse osmosis membrane assembly.
Fig. 5 shows a specific embodiment of reverse osmosis membrane assembly in the application.
Fig. 6 shows the structural schematic diagram that reverse osmosis membrane assembly in Fig. 5 is in unfolded state.
The specific embodiment that Fig. 7 shows reverse osmosis membrane assembly in the application is in the signal of unfolded state
Figure.
The appended drawing reference of the figures above are as follows: 1, diaphragm；11, positive；12, the back side；2, unit raw water runner；3, unit pure water
Runner；31, pure water outlet；4, raw water channel；41, entrance；42, it exports；5, central tube；51, water chamber；6, shell；71, first
Sheet material portion；72, the second sheet material portion；73, third sheet material portion；74, the 4th sheet material portion；75, raw water selvage guide；76, pure water selvage guide；8, close
Envelope portion.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But
It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way
At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention.
The embodiment of the present application discloses a kind of reverse osmosis membrane assembly, which includes at least two reverse osmosis membranes
Unit, each reverse osmosis membrane unit have the unit raw water runner 2 for being located at its positive 11 side and positioned at its 12 sides of back side
Unit pure water runner 3；The unit raw water runner 2 of each reverse osmosis membrane unit is connected；Each reverse osmosis membrane unit
Unit pure water runner 3 be isolated.
By for reverse osmosis membrane assembly in the prior art the study found that due to reverse osmosis membrane assembly surface velocity
Desirable is also not achieved, the surface of reverse osmosis membrane assembly in the prior art is also possible to that some impurity can be deposited.The application
Reverse osmosis membrane assembly in embodiment in such a way that the unit raw water runner 2 of each reverse osmosis membrane unit is connected to,
To extend 1 length of single page diaphragm and reduce wound membrane number of pages.But at the same time, if still using in the prior art reverse osmosis
The structure of membrane module, the pure water runner of reverse osmosis membrane assembly also can accordingly become longer, will lead to reverse osmosis membrane assembly in this way
The resistance of pure water side rises, and in turn results in the pure water flow decline of reverse osmosis membrane assembly, 1 utilization rate of diaphragm of reverse osmosis membrane assembly
It reduces.In order to solve this problem, the reverse osmosis membrane assembly in the application embodiment carries out each unit pure water runner 3
Isolation, shortens the length of each unit pure water runner 3 in this way, reduces the resistance of the pure water side of each reverse osmosis membrane unit,
And then in the case where a possibility that the surface velocity for improving reverse osmosis membrane assembly reduces surface depositing contaminants, it is ensured that even
The utilization rate and pure water flow of diaphragm 1 are improved.
Reverse osmosis membrane assembly in the application embodiment is under conditions of meeting pure water flow, it is possible to reduce diaphragm 1
Number of pages, extends the length of single page diaphragm 1, to further increase 1 surface velocity of diaphragm, improves membrane component contamination resistance.This
In the case that 1 surface velocity of diaphragm in application embodiment reaches requirement, the reverse osmosis membrane assembly in the application embodiment
Improve pure water flow.
Fig. 1 shows a specific embodiment of the application reverse osmosis membrane assembly.In this embodiment, reverse osmosis membrane
Component includes two reverse osmosis membrane units, and reverse osmosis membrane unit includes the diaphragm 1 that two fronts 11 are oppositely arranged.Two reverse osmosis
The unit raw water runner 2 of film unit is connected, to form former aquaporin-4.The unit stream of pure water of two reverse osmosis membrane units
Road 3 is isolated.If of course, in the case where there is not mixed water (unit pure water runner 3 and unit raw water runner 2 mix),
The application can also include the reverse osmosis membrane unit of three, four or other quantity.
Diaphragm 1 may include the compacted zone and supporting layer being stacked.Wherein compacted zone is located at the front 11 of diaphragm 1, branch
Support layer is located at the back side 12 of diaphragm 1.The material of compacted zone be mainly aromatic polyamides, piperazine amide, propylene-alkyl polyamide with
It is condensed urea, furfuryl alcohol and trihydroxyethyl isocyanates, m-phenylene diamine (MPD) and pyromellitic trimethylsilyl chloride etc., to play desalination and filtering
The effects of.Supporting layer often uses polyester non-woven fabric, to play a supporting role to compacted zone, to improve the integral strength of sheet material.When
So in other optional embodiments, diaphragm 1 can also by front 11 rearwardly 12 stack gradually ultra-thin desalination layer, polysulfones
Intraformational bed and polyester support stratum reticulare are combined.The structure or composition of diaphragm 1 are not limited in the application thus.
The unit raw water runner 2 is formed in the inside of the reverse osmosis membrane unit.The unit pure water runner 3 is formed in
The outside of the reverse osmosis membrane unit.Two unit pure water runners 3 are located at the same side of the reverse osmosis membrane unit (same
The downside of a diaphragm 1).The pure water outlet 31 of two unit pure water runners 3 is away from each other, wherein being located at the reverse osmosis membrane unit in left side
Pure water outlet 31 towards left side, positioned at right side reverse osmosis membrane unit pure water outlet 31 towards right side.
Fig. 2 shows the schematic diagrames of the unit raw water runner 2 for the inside for being located at reverse osmosis membrane unit in Fig. 1.Fig. 3 is shown
In figure in the outside of reverse osmosis membrane unit unit pure water runner 3 schematic diagram.Referring to shown in Fig. 2 and Fig. 3, in order to further prolong
The length of long original aquaporin-4, the entrance 41 of former aquaporin-4 is close to the left side of the reverse osmosis membrane assembly, i.e., close to one of them
Pure water outlet 31, the outlet 42 of former aquaporin-4 is close to the right side of the reverse osmosis membrane assembly, i.e., close to another pure water outlet
31.Of course, in the case where not mixed water, the outlet 42 of former aquaporin-4 or entrance 41 can in other optional embodiments
Think two.Such as the upper and lower side of former aquaporin-4 all has outlet 42, to further increase the water speed out of former aquaporin-4.
Or the upper and lower side of former aquaporin-4 all has entrance 41, to further increase the digging water speed of former aquaporin-4.
Fig. 4 shows the another embodiment of the application reverse osmosis membrane assembly.In this embodiment, reverse osmosis
Membrane module includes two reverse osmosis membrane units, and reverse osmosis membrane unit includes the diaphragm 1 that two fronts 11 are oppositely arranged.Diaphragm 1
Structure can refer to foregoing description, be not repeated herein.
In the present embodiment, the unit raw water runner 2 is formed in the inside of the reverse osmosis membrane unit.Two units
Pure water runner 3 is located at the opposite side of the reverse osmosis membrane unit, i.e., one of unit pure water runner 3 is located at a diaphragm 1
Downside, another unit pure water runner 3 are located at the upside of another diaphragm 1.31 phase of pure water outlet of two unit pure water runners 3
Deviate from, the reverse osmosis membrane unit wherein be located at the pure water outlet 31 of the reverse osmosis membrane unit in left side towards left side, positioned at right side
Pure water outlet 31 is towards right side.
Fig. 5 and Fig. 6 shows a specific embodiment of reverse osmosis membrane assembly in the application.In present embodiment
In, the reverse osmosis membrane assembly includes central tube 5, and the reverse osmosis membrane unit winding is arranged on the central tube 5.In described
Heart pipe 5 has the water chamber 51 being connected to the pure water outlet 31 of reverse osmosis membrane unit described in one of them, another described reverse osmosis
The pure water outlet 31 of permeable membrane unit is located at the side of the reverse osmosis membrane assembly.
Specifically, the reverse osmosis membrane assembly includes the first reverse osmosis membrane unit and the second reverse osmosis membrane unit.In exhibition
First reverse osmosis membrane unit of open state includes the first sheet material portion 71 and the side (figure for being connected to first sheet material portion 71
In left side) and along first axle turn down from the outside to the core made of the second sheet material portion 72.Described second in unfolded state
Reverse osmosis membrane unit includes being connected to the third sheet material portion 73 of the other side (right side in figure) in first sheet material portion 71 and connecting
Connect third sheet material portion 73 side and along second axis turn down from the outside to the core made of the 4th sheet material portion 74.Described
The front 11 in one sheet material portion 71 and the front 11 in second sheet material portion 72 are opposite.The front 11 in third sheet material portion 73 and institute
The front 11 for stating the 4th sheet material portion 74 is opposite.Second sheet material portion 72 has the first side connecting with first sheet material portion 71
Side (left side in figure) and the second side opposite with the first side (right side in figure).The 4th sheet material portion 74 has
The third side (right side in figure) connected with third sheet material portion 73 and the four side opposite with the third side (figure
In left side).The central tube 5 is located at the back side 12 of the first side in second sheet material portion 72 to the reverse osmosis membrane assembly
It is wound to the back side 12 of the second side in second sheet material portion 72 and is connected, then by the back side 12 in the second sheet material portion 72
Coiling and molding after being connect with the back side 12 of the four side in the 4th sheet material portion 74.
Preferably, raw water selvage guide 75 can be set on the inside of the first reverse osmosis membrane unit and the second reverse osmosis membrane unit,
I.e. raw water selvage guide 75 is arranged in the former aquaporin-4 of the reverse osmosis membrane assembly.First reverse osmosis membrane unit and the second reverse osmosis membrane
Pure water selvage guide 76 is can be set on the outside of unit, i.e. each reverse osmosis membrane that the reverse osmosis membrane assembly is set of pure water selvage guide 76
In the unit pure water runner 3 of unit.
The pure water outlet 31 of first reverse osmosis membrane unit is connected to the water chamber 51 of central tube 5, to make a part of pure water
42 outflows can be exported from the end of central tube 5.As shown in fig. 6, the end outlet 42 of central tube 5 is located at the lower end of central tube 5.
Certainly in other optional embodiments, the end outlet 42 of central tube 5 can also be located at the upper end of central tube 5, Huo Zheye
The upper and lower ends of central tube 5 can be located at.
The pure water outlet 31 of second reverse osmosis membrane unit is located at the side of the reverse osmosis membrane assembly, so that a part of pure water
It can be flowed out from the side of the reverse osmosis membrane assembly.
In order to which by raw water runner and the isolation of pure water runner, the reverse osmosis membrane assembly includes being arranged in the reverse osmosis membrane list
Shell 6 outside member is offered on the wall surface of the shell 6 and to be connected to the pure water outlet 31 of reverse osmosis membrane unit described in another
The pure water flowed out from the side of the reverse osmosis membrane assembly is played and is collected and guiding function by water outlet.
In the present embodiment, single page diaphragm 1 is divided into two by the reverse osmosis membrane assembly, therefore by water inlet flow channel length
It improves to original twice, 1 surface velocity of diaphragm is promoted to original twice or more, improves the scouring intensity of film surface, reduces
The degree of adhesion of 1 surface contaminant of diaphragm.In addition, the design shortens the length of pure water runner, the resistance of pure water selvage guide can be reduced
Power reduces back pressure, to improve the pure water flow of membrane component to a certain extent.
In one preferred embodiment, since one of pure water outlet 31 is located at the side of reverse osmosis membrane assembly,
It will lead to the pressure difference that the inner side and outer side of the reverse osmosis membrane assembly is born, in this way in order to improve the strong of reverse osmosis membrane assembly
Degree and pressure-bearing property, the inner wall of the shell 6 can be abutted against with the outer wall of the reverse osmosis membrane unit.
Of course, the reverse osmosis membrane assembly may include being arranged in the reverse osmosis membrane in other optional modes
Support device outside unit.The support device includes the bundle line being wrapped in outside the reverse osmosis membrane unit or is set in described anti-
Sleeve outside osmosis membrane unit.
A kind of specific embodiment of the preparation method of reverse osmosis membrane assembly is disclosed in the present invention.The preparation method includes
Following steps: a composite membrane is turned down into formation first along the first axle and second axis for being parallel to its short side axis from the outside to the core
Sheet material portion 71, the second sheet material portion 72, third sheet material portion 73 and the 4th sheet material portion 74, wherein the front in first sheet material portion 71
11 is opposite with the front 11 in second sheet material portion 72, the front 11 in third sheet material portion 73 and the 4th sheet material portion 74
Front 11 is opposite, and first sheet material portion 71 and third sheet material portion 73 are connected with each other.
By central tube 5 from the outside (left side in figure) at the back side 12 in second sheet material portion 72 to composite membrane inwardly into
The inside (right side in figure) that row is wound to the back side 12 in the second sheet material portion 72 forms reel.
The inside (right side in figure) at the back side 12 in the second sheet material portion 72 and reel are tightly connected, to make the first sheet material
Portion 71 and the second sheet material portion 72 form the first reverse osmosis membrane unit.
After the inside (right side in figure) at the back side 12 in the second sheet material portion 72 and reel are tightly connected, by third sheet material portion
The inside (left side in figure) at 73 back side 12 and reel are tightly connected, in the inside (in figure at the back side 12 in third sheet material portion 73
Left side) be tightly connected with reel after, reel is carried out from the inside (left side in figure) at the back side 12 of the third sheet material 73
Coiling and molding, so that third sheet material portion 73 and the 4th sheet material portion 74 be made to form the second reverse osmosis membrane unit, and by the first reverse osmosis
Permeable membrane unit and the second reverse osmosis membrane unit are close with reel by the inside (left side in figure) at the back side 12 in third sheet material portion 73
Seal junction isolation.
Wherein, the central tube 5 has the water chamber 51 being connected to the pure water outlet 31 of first reverse osmosis membrane unit,
The pure water outlet 31 of second reverse osmosis membrane unit is located at the side of the reverse osmosis membrane assembly.
Fig. 7 shows a specific embodiment of reverse osmosis membrane assembly in the application.In the present embodiment, described
Reverse osmosis membrane assembly includes the diaphragm 1 opposite by two fronts 11, and the back side 12 of two diaphragms 1 is on central tube 5
At least two unit pure water runners 3 are isolated by sealing 8 after to certain length.
The invention discloses a kind of preparation method of reverse osmosis membrane assembly, it the following steps are included:
Two 1 fronts 11 of diaphragm are opposite；
Seal the short side corresponding positive 11 of two diaphragms 1；
Two diaphragms 1 are wound from the side short side at the back side of two diaphragms 1 12 by central tube 5；
When being wound to certain length, the unit pure water runner 3 of two isolation is formed by sealing 8；
After forming unit pure water runner 3 of isolation, coiling and molding.
Wherein, two diaphragms 1 can be formed by a composite membrane towards interior folding, thus by the side short side of two diaphragms 1
Sealing.The other side short side of two diaphragms 1 can be sealed by other modes such as sealing elements.When being wound to certain length, lead to
The unit pure water runner 3 that sealing 8 forms two isolation is crossed, wherein sealing 8 can be the adhesive tape extended along short side or glue
Glutinous agent.
The structure of this kind of reverse osmosis membrane assembly is relatively simple, and preparation method is relatively easy to, to be conducive to automate wound membrane.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (18)
1. a kind of reverse osmosis membrane assembly, which is characterized in that the reverse osmosis membrane assembly includes:
At least two reverse osmosis membrane units interconnected, each reverse osmosis membrane unit include that two fronts are oppositely arranged
Diaphragm, each reverse osmosis membrane unit have positioned at the unit raw water runner of its face side and pure positioned at the unit of its back side
Water flow passage；
The unit raw water runner of each reverse osmosis membrane unit is connected in series connection；
The unit pure water runner of each reverse osmosis membrane unit is isolated.
2. reverse osmosis membrane assembly according to claim 1, which is characterized in that a side at the back side of the diaphragm forms list
The pure water outlet of first pure water runner；The unit raw water runner is formed in the inside of the reverse osmosis membrane unit；The unit is pure
Water flow passage is formed in the outside of the reverse osmosis membrane unit.
3. reverse osmosis membrane assembly according to claim 1, which is characterized in that the reverse osmosis membrane assembly includes described in two
The pure water outlet of reverse osmosis membrane unit, two reverse osmosis membrane units is away from each other.
4. reverse osmosis membrane assembly according to claim 3, which is characterized in that the unit of two reverse osmosis membrane units is former
Water flow passage is connected to form raw water channel, the entrance in the raw water channel, the outlet of the raw water runner and the pure water outlet point
It Wei Yu not the different side of the reverse osmosis membrane assembly.
5. reverse osmosis membrane assembly according to claim 4, which is characterized in that the entrance of the raw water runner and the raw water
The outlet of runner closes on a pure water outlet respectively.
6. reverse osmosis membrane assembly according to claim 1, which is characterized in that the reverse osmosis membrane assembly includes central tube,
The reverse osmosis membrane unit winding is arranged on the central tube.
7. reverse osmosis membrane assembly according to claim 6, which is characterized in that the central tube have with described in one of them
The water chamber of the pure water outlet connection of reverse osmosis membrane unit, the pure water outlet of another reverse osmosis membrane unit are located at described anti-
The side of permeable membrane element.
8. reverse osmosis membrane assembly according to claim 7, which is characterized in that the outlet of the water chamber of the central tube is located at
The end of the central tube.
9. reverse osmosis membrane assembly according to claim 6, which is characterized in that the reverse osmosis membrane assembly includes being arranged in institute
The shell outside reverse osmosis membrane unit is stated, offers on the wall surface of the shell and goes out with the pure water of reverse osmosis membrane unit described in another
The water outlet of mouth connection.
10. reverse osmosis membrane assembly according to claim 9, which is characterized in that the inner wall of the shell with it is described reverse osmosis
The outer wall of film unit abuts against.
11. reverse osmosis membrane assembly according to claim 2, which is characterized in that the reverse osmosis membrane assembly includes that setting exists
Support device outside the reverse osmosis membrane unit.
12. reverse osmosis membrane assembly according to claim 11, which is characterized in that the support device is described including being wrapped in
Bundle line and/or sleeve outside reverse osmosis membrane unit.
13. reverse osmosis membrane assembly according to claim 6, which is characterized in that the reverse osmosis membrane assembly includes first anti-
Osmosis membrane unit and the second reverse osmosis membrane unit, first reverse osmosis membrane unit in unfolded state include the first sheet material portion
With the side for being connected to first sheet material portion and along first axle turn down from the outside to the core made of the second sheet material portion, in exhibition
Second reverse osmosis membrane unit of open state includes being connected to the third sheet material portion and company of the other side in first sheet material portion
Connect third sheet material portion side and along second axis turn down from the outside to the core made of the 4th sheet material portion, described first
The front in positive and second sheet material portion in material portion is opposite, and the front in third sheet material portion and the 4th sheet material portion are just
Face is opposite, and second sheet material portion has the first side connected with first sheet material portion and opposite with the first side
Second side, the 4th sheet material portion have and the third side that third sheet material portion connects and opposite with the third side
Four side, the central tube, which is located at the back side of the first side in second sheet material portion, carries out the reverse osmosis membrane assembly
It is wound to and is connected with the back side of the second side in second sheet material portion, then by the back side in the second sheet material portion and described 4th
Coiling and molding after the back side connection of the four side in material portion.
14. reverse osmosis membrane assembly according to claim 13, which is characterized in that first sheet material portion, second described
Material portion, third sheet material portion and the 4th sheet material portion are folded by a composite membrane.
15. reverse osmosis membrane assembly according to claim 13, which is characterized in that the second side in second sheet material portion
The back side of the four side at the back side and third sheet material portion is tightly connected with reel made of central tube winding respectively.
16. reverse osmosis membrane assembly according to claim 1, which is characterized in that the reverse osmosis membrane assembly includes by two
The opposite diaphragm and central tube in front, the back side of two diaphragms on the central tube after isolated by sealing
At least two unit pure water runners.
17. a kind of preparation method of reverse osmosis membrane assembly, which is characterized in that it the following steps are included:
One composite membrane is turned down from the outside to the core along the first axle and second axis for being parallel to its short side axis and forms the first sheet material
Portion, the second sheet material portion, third sheet material portion and the 4th sheet material portion, the front in first sheet material portion and second sheet material portion are just
Face is opposite, and the front in third sheet material portion and the front in the 4th sheet material portion are opposite, first sheet material portion and described the
Three sheet material portions are connected with each other；
Composite membrane is inwardly wound by the outside at central tube from the back side in second sheet material portion to the second sheet material portion
The inside at the back side forms reel；
The inside at the back side in the second sheet material portion and reel are tightly connected；
It is after the inside at the back side in the second sheet material portion and reel are tightly connected, the inside at the back side in third sheet material portion and reel is close
Envelope connection；
After the inside at the back side in third sheet material portion and reel are tightly connected, from the inside at the back side of the third sheet material to reel
It is wound molding.
18. a kind of preparation method of reverse osmosis membrane assembly, which is characterized in that it the following steps are included:
Two diaphragm fronts are opposite；
Seal the corresponding front of short side of two diaphragms；
Two diaphragms are wound from the side short side at the back side of two diaphragms by central tube；
After the coiling, the unit pure water runner of two isolation is formed by sealing；
After forming the unit pure water runner of isolation, coiling and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280241.5A CN105771656B (en) | 2016-04-29 | 2016-04-29 | Reverse osmosis membrane assembly and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280241.5A CN105771656B (en) | 2016-04-29 | 2016-04-29 | Reverse osmosis membrane assembly and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105771656A CN105771656A (en) | 2016-07-20 |
| CN105771656B true CN105771656B (en) | 2019-03-12 |
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| CN201610280241.5A Active CN105771656B (en) | 2016-04-29 | 2016-04-29 | Reverse osmosis membrane assembly and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794167A (en) * | 2017-11-16 | 2019-05-24 | 湖南沁森高科新材料有限公司 | A kind of seawater desalination reverse osmosis membrane component and its method for coiling |
| CN109603557B (en) * | 2018-12-25 | 2021-01-12 | 上海福赛特机器人有限公司 | Film folding device and method |
| CN109823905B (en) * | 2019-01-16 | 2020-05-08 | 湖南红石智控科技有限公司 | Folding machine for producing reverse osmosis membrane and production system of reverse osmosis membrane |
| CN110694481B (en) * | 2019-10-08 | 2022-01-11 | 佛山市麦克罗美的滤芯设备制造有限公司 | Method for manufacturing reverse osmosis membrane element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5509021B2 (en) * | 2010-10-04 | 2014-06-04 | 日東電工株式会社 | Separation membrane module |
| JP5946220B2 (en) * | 2013-03-26 | 2016-07-05 | 富士フイルム株式会社 | Complex for acid gas separation, module for acid gas separation, and method for producing module for acid gas separation |
| CN205095658U (en) * | 2015-11-16 | 2016-03-23 | 艾欧史密斯（南京）水处理产品有限公司 | Film element |
| CN205683845U (en) * | 2016-04-29 | 2016-11-16 | 艾欧史密斯(中国)热水器有限公司 | Reverse osmosis membrane assembly |
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