CN106237861A - Reverse osmosis membrane element, preparation method of reverse osmosis membrane element and filter element - Google Patents
Reverse osmosis membrane element, preparation method of reverse osmosis membrane element and filter element Download PDFInfo
- Publication number
- CN106237861A CN106237861A CN201610834876.5A CN201610834876A CN106237861A CN 106237861 A CN106237861 A CN 106237861A CN 201610834876 A CN201610834876 A CN 201610834876A CN 106237861 A CN106237861 A CN 106237861A
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- reverse
- reverse osmosis
- end cap
- osmosis membrane
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 187
- 239000012528 membrane Substances 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 166
- 239000002351 wastewater Substances 0.000 claims abstract description 43
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000003292 glue Substances 0.000 claims abstract description 16
- 239000002699 waste material Substances 0.000 claims description 65
- 239000000565 sealant Substances 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 8
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract 1
- 239000012945 sealing adhesive Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- 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
- B01D61/02—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
- B01D61/10—Accessories; Auxiliary operations
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/04—Specific sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/08—Flow guidance means within the module or the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/10—Specific supply elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/12—Specific discharge elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/21—Specific headers, end caps
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention discloses a reverse osmosis membrane element, a preparation method of the reverse osmosis membrane element and a filter element, wherein the reverse osmosis membrane element comprises: the device comprises a central pipe group, a plurality of reverse osmosis membrane groups and two sealing adhesive layers, wherein the central pipe group comprises a pure water pipe and a plurality of waste water pipes which are arranged at intervals, and the plurality of waste water pipes are distributed around the pure water pipe; each RO membrane set has a first part located inside the central tube set and a second part located outside the central tube set, and each waste water pipe and the pure water pipe are separated by the first part of one RO membrane set; a second portion of the plurality of reverse osmosis membrane modules forming a multi-layer membrane module surrounding the central tube bank; the two sealing glue layers are respectively arranged at two ends of the multiple reverse osmosis membrane groups in the length direction of the central tube group and are adhered to the multiple reverse osmosis membrane groups. The technical scheme of the invention can improve the recovery rate of raw water and achieve the effect of saving raw water.
Description
Technical field
The present invention relates to reverse osmosis purified water technical field, particularly to a kind of reverse-osmosis membrane element, reverse-osmosis membrane element
Preparation method and filter element.
Background technology
Reverse-osmosis membrane element, also known as coiled reverse osmosis membrane element, is the common component in water technology, and it generally comprises
A piece central canal with multiple holes and the volume alternately laminated multilamellar reverse osmosis on central canal select film and flow-guiding screen.Central canal
It is connected by adapter with housing two ends.In use, former water enters housing from shell one end, under the effect of the pressure a part
Effect through reverse osmosis membrane forms the water that concentration is relatively low, flows out from central canal one or both ends, this portion after entering central canal
Water is divided can referred to as to produce water or pure water；Another part flows out from the housing other end, can be referred to as waste water, dense water.
This reverse-osmosis membrane element of the prior art, after former water is treated, discharges as waste water, only greatly
Having sub-fraction to become pure water, the reverse-osmosis membrane element of the biggest flux, the ratio that pure water amount accounts in the former water yield is the most more
Little, former Water Sproading rate is low, causes the waste of former water.
Summary of the invention
The main object of the present invention is to provide a kind of reverse-osmosis membrane element, it is intended to improve former Water Sproading rate, reaches to save former
The effect of water.
For achieving the above object, the reverse-osmosis membrane element that the present invention proposes, including: central canal group, multipage reverse osmosis diaphragm
Group and two sealant layers, described central canal group includes DI and the waste pipe of multiple spaced setting, multiple described
Waste pipe is arranged around described DI；Each described reverse osmosis diaphragm group is respectively provided be positioned within described central canal group
A part and be positioned at the Part II outside described central canal group, each described waste pipe and described DI by one described instead
The Part I of infiltration diaphragm group separates；The Part II of multiple described reverse osmosis diaphragm groups is formed and is centered around described central canal group
The plural layers assembly of surrounding；Two described sealant layers are respectively arranged at described multipage reverse osmosis diaphragm group at described center
The two ends of pipe group length direction, and bonding with described multipage reverse osmosis diaphragm group.
Preferably, the thickness of described sealant layer is 1-2mm.
Preferably, described sealant layer is formed by the coating of AB glue.
Preferably, described reverse-osmosis membrane element also includes the first end cap and the second end cap, described first end cap and the second end
Lid is sheathed on described central canal group and the two ends of described multipage reverse osmosis diaphragm group respectively, and respectively with corresponding described fluid sealant
Layer is adhesively fixed；Wherein, described first end cap is provided with waste water discharge opening and pure water outlet；Or, described first end cap is provided with
Waste water discharge opening, described second end cap is provided with pure water outlet；Described waste pipe connects described waste water discharge opening and arranges, described pure
Pure water outlet described in cross current is arranged.
Preferably, described waste water discharge opening and described pure water outlet may be contained within described first end cap.
Preferably, the position of the corresponding described waste pipe in the inner side of described first end cap is convexly equipped with described in multiple connection with quantity
The first of waste water discharge opening stretches into pipe, and described first stretches in the described waste pipe that pipe stretches to correspondence, and connects described waste water
Outlet and corresponding described waste pipe；The position male of the corresponding described DI in the inner side of described first end cap is communicated with described
The second of pure water outlet stretches into pipe, and described second stretches into pipe stretches in described DI, and connects described pure water outlet
With described DI.
Preferably, position and the quantity of the corresponding described waste pipe in the inner side of described second end cap is convexly equipped with multiple first location
Projection, described first positioning convex stretches to arrange in corresponding described waste pipe；Described in the inner side correspondence of described second end cap
The position male of DI is provided with the second positioning convex, and described second positioning convex stretches to arrange in described DI.
Preferably, described first end cap or/and described second end cap described sealant layer bonding end face on be convexly equipped with
Reinforcement structure.
Preferably, described reinforcement structure includes that circumferentially arranged ring stiffener and the bar shaped being disposed radially are strengthened
Muscle.
Preferably, each described reverse osmosis diaphragm group includes reverse osmosis diaphragm, water inlet flow-guiding screen and pure water flow-guiding screen；
The inside doubling in reverse osmosis diaphragm front of each described reverse osmosis diaphragm group is arranged, the second of multiple described reverse osmosis diaphragm groups
Part overlapping is also circumferentially wound around described central canal group jointly；Feed water flow is formed between the interlayer of same described reverse osmosis diaphragm front
Road；Formed between the reverse side interlayer of adjacent two described reverse osmosis diaphragms and produce water flow passage；Described water inlet flow-guiding screen and described waste water
Pipe is positioned in water inlet flow channel, and described pure water flow-guiding screen is positioned in product water flow passage.
The present invention also proposes the preparation method of a kind of reverse-osmosis membrane element, including: step S1, by multiple described reverse osmosis membranes
The Part I of sheet group stretches in described central canal group so that each described waste pipe and described DI are by a described reverse osmosis
The Part I of permeable membrane sheet group separates；
Step S2, is centered around the Part II of multiple described reverse osmosis diaphragm groups around described central canal group, prepares
Semi-finished product module；
Step S3, the reverse osmosis diaphragm group at described semi-finished product module coats at the two ends of described central canal group length direction
Marine glue is also dried.
The present invention also proposes the preparation method of another kind of reverse-osmosis membrane element, including: step S1, by multiple described reverse osmosiss
The Part I of diaphragm group stretches in described central canal group so that each described waste pipe and described DI by one described instead
The Part I of infiltration diaphragm group separates；
Step S2, is centered around the Part II of multiple described reverse osmosis diaphragm groups around described central canal group, prepares
Semi-finished product module；
Step S3 ', at the inner side diapire coating marine glue of described first end cap and described second end cap, coating scope is avoided
Described pure water outlet and described waste water discharge opening, be covered on described first end cap described half respectively and become with described second end cap
The two ends of product assembly are also dried.
The present invention also proposes a kind of filter element, and this filter element includes housing, waterway converter and reverse-osmosis membrane element；Described reverse osmosis
Membrane element includes central canal group, multipage reverse osmosis diaphragm group and two sealant layers, described central canal group include DI with
And the waste pipe of multiple spaced setting, multiple described waste pipes are arranged around described DI；Each described reverse osmosis
Diaphragm group is respectively provided with the Part I being positioned within described central canal group and is positioned at the Part II outside described central canal group, often
Waste pipe described in one and described DI are separated by the Part I of a described reverse osmosis diaphragm group；Multiple described reverse osmosis membranes
The Part II of sheet group forms the plural layers assembly of the surrounding being centered around described central canal group；Two described sealant layers are respectively
Be arranged at described multipage reverse osmosis diaphragm group at the two ends of described central canal group length direction, and with described multipage reverse osmosis diaphragm
Organize bonding；Described reverse-osmosis membrane element is placed in described housing；Described waterway converter is provided with two independent water routes, its
In a described water route be connected with multiple described waste pipes, another described water route is connected with described DI.
The central canal group of the reverse-osmosis membrane element of technical solution of the present invention includes DI and multiple giving up around DI
Water pipe；Each waste pipe correspondence one page reverse osmosis diaphragm group of reverse-osmosis membrane element, batches such that it is able to realize multimembrane page, permissible
Increase runner quantity, be conducive to improving former water flux, and solve reverse osmosis diaphragm long osmotic pressure deficiency and cause part reverse osmosis
Permeable membrane sheet the problem not up to filtering purpose；The two ends of reverse osmosis diaphragm group are sealed respectively by two described sealant layers,
Prevent water from flowing out from the two ends of reverse osmosis diaphragm group or flowing into, the water inlet of multipage reverse osmosis diaphragm group outer side edges effluent can be formed,
Middle waste pipe discharges the Yuan Shui water route of waste water；When the reverse-osmosis membrane element of the present invention uses, former water is intake by effluent, runner
Narrowing, water inlet area reduces, it is also possible to use the water inlet flow-guiding screen of low thickness in reverse osmosis diaphragm group, continues to reduce water entering surface
Long-pending, and flow process increases the most significantly, therefore can increase the time of former water and reverse osmosis film contact, improves former Water Sproading rate；With
Time, because reducing former water water inlet area, the infiltration membrane surface water velocity of anti-reverse osmosis diaphragm group can be strengthened, thus energy
Enough reduce reverse osmosis membrane surface concentration polarization, reduce the pollution speed of this reverse-osmosis membrane element, be conducive to improving former Water Sproading
Rate, thus improve the waste problem of former water, reach to save the effect of former water.
Accompanying drawing explanation
Fig. 1 is the structural representation of reverse-osmosis membrane element one embodiment of the present invention；
Fig. 2 is that reverse-osmosis membrane element shown in Fig. 1 is along the sectional view of A-A '；
Fig. 3 is the structural representation of the central canal group of reverse-osmosis membrane element shown in Fig. 1；
Fig. 4 is the structural representation of another embodiment of reverse-osmosis membrane element of the present invention；
Fig. 5 is that reverse-osmosis membrane element shown in Fig. 4 is along the sectional view of B-B '；
Fig. 6 is the partial enlarged drawing in Fig. 5 at C；
Fig. 7 is the partial enlarged drawing in Fig. 5 at D；
Fig. 8 is the structural representation of the first end cap of reverse-osmosis membrane element shown in Fig. 4；
Fig. 9 is the flow chart of preparation method one embodiment of reverse-osmosis membrane element of the present invention；
Figure 10 is the flow chart of another embodiment of preparation method of reverse-osmosis membrane element of the present invention；
Figure 11 is the decomposition texture schematic diagram of filter element one embodiment of the present invention.
Drawing reference numeral illustrates:
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that the embodiment of the present invention relates to directivity instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining under a certain particular pose (as shown in drawings) relative position relation between each parts,
Motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, the embodiment of the present invention relates to the description of " first ", " second " etc., then should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include at least one this spy
Levy.It addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Enough be embodied as basis, when the combination of technical scheme occur conflicting maybe cannot realize time will be understood that the knot of this technical scheme
Close and do not exist, the most not within the protection domain of application claims.
The present invention proposes a kind of reverse-osmosis membrane element.
Referring to Fig. 1 to Fig. 3, in embodiments of the present invention, this reverse-osmosis membrane element 700 includes central canal group 100, multipage
Reverse osmosis diaphragm group 200 and two sealant layers 300, described central canal group 100 includes DI 110 and multiple spaced
The waste pipe 120 arranged, multiple described waste pipes 120 are arranged around described DI 110；Each described reverse osmosis diaphragm group
200 are respectively provided with the Part I being positioned within described central canal group 100 and are positioned at second outside described central canal group 100
Point, each described waste pipe 120 and described DI 110 are separated by the Part I of a described reverse osmosis diaphragm group 200；Many
The Part II of individual described reverse osmosis diaphragm group 200 forms the plural layers assembly of the surrounding being centered around described central canal group 100；
Two described sealant layers 300 are respectively arranged at described multipage reverse osmosis diaphragm group 200 at described central canal group 100 length direction
Two ends, and bonding with described multipage reverse osmosis diaphragm group 200.
The central canal group 100 of the reverse-osmosis membrane element 700 of technical solution of the present invention includes DI 110 and multiple around pure
The waste pipe 120 of water pipe 110；The corresponding one page reverse osmosis diaphragm group 200 of each waste pipe 120 of reverse-osmosis membrane element 700, thus
Multimembrane page can be realized batch, runner quantity can be increased, be conducive to improving former water flux, and solve that reverse osmosis diaphragm is long to be oozed
Insufficient pressure causes the problem that part reverse osmosis diaphragm does not reach to filter purpose thoroughly；By two described sealant layers 300 points
The two ends of reverse osmosis diaphragm group 200 (Mi Feng not it should be noted that sealant layer 300 can not block DI 110 or waste pipe
The inside bore of 120), prevent water from flowing out from the two ends of reverse osmosis diaphragm group 200 or flowing into, multipage reverse osmosis diaphragm can be formed
Organizing 200 outer side edges effluent water inlets, middle waste pipe 120 discharges the Yuan Shui water route of waste water；The reverse-osmosis membrane element 700 of the present invention makes
Used time, former water intake by effluent, and runner narrows, and water inlet area reduces, it is also possible to use low thickness in reverse osmosis diaphragm group 200
The water inlet flow-guiding screen of degree, continues to reduce water inlet area, and flow process increases the most significantly, therefore can increase former water and reverse osmosis diaphragm
The time of contact, improve former Water Sproading rate；Meanwhile, because reducing former water water inlet area, anti-reverse osmosis diaphragm group can be strengthened
(in water inlet flux one timing, the relation between water inlet flux Q and water velocity V is V to the infiltration membrane surface water velocity of 200
=Q/S；Wherein, S is water inlet area, concrete, S=Ld；L is water inlet end diaphragm length, and d is section thickness, and effluent is mainly
Reduce L, additionally naturally reduce thickness d with little water inlet flow-guiding screen), it is thus possible to reduce reverse osmosis membrane surface concentration polarization
Change, reduce the pollution speed of this reverse-osmosis membrane element 700, be conducive to improving former Water Sproading rate, thus the waste improving former water is asked
Topic, reaches to save the effect of former water.
Wherein, refer to Fig. 3, in this central canal group 100, the perisporium of described DI 110 offers connection described pure
The pure water blasthole (not shown) of the inner passage of water pipe 110；Connection is offered described on the perisporium of each described waste pipe 120
The waste water blasthole 121 of the inner passage of waste pipe 120.Pure water and waste water are respectively by pure water blasthole and waste water blasthole
121 enter in corresponding passage.Wherein, the particular number of waste pipe 120 determines the number of pages of reverse osmosis diaphragm group 200, also determines
Having determined the size of DI 110, concrete, the corresponding waste pipe 120 of one page reverse osmosis diaphragm group 200 is arranged, waste pipe 120
The number of pages of reverse osmosis diaphragm group 200 is the most the most at most, and the flux of corresponding reverse-osmosis membrane element 700 is the biggest, and DI 110
Size also accordingly the biggest.The shape of the particular number of waste pipe 120, shape and corresponding DI 110 is referred to this
Bright specific embodiment, and arrange according to practical situation.
Each described reverse osmosis diaphragm group 200 include reverse osmosis diaphragm (not shown), water inlet flow-guiding screen (not shown) with
And pure water flow-guiding screen (not shown)；Water inlet flow-guiding screen and pure water flow-guiding screen can be separately positioned on the positive and negative of described reverse osmosis diaphragm
Two sides, former water flows in the front of reverse osmosis diaphragm, and under the effect of osmotic pressure, from reverse osmosis diaphragm just towards reverse osmosis
Permeable membrane sheet reverse side infiltration pure water, pure water produce the reverse side of reverse osmosis diaphragm and under the guide functions of pure water flow-guiding screen to pure
Water pipe 110 flows.Wherein, reverse osmosis diaphragm can make front adjoin with front by doubling, and reverse side adjoins with reverse side, it is to avoid
Unnecessary contact, thus prevent pure water to be contaminated；During practical operation, can be that front is the most right during the doubling of reverse osmosis diaphragm
Folding can also be the inside doubling of reverse side, carries out Rational choice according to practical situation.In the present embodiment, each is described instead
The inside doubling in reverse osmosis diaphragm front of infiltration diaphragm group 200 is arranged, and the Part II of multiple described reverse osmosis diaphragm groups 200 is folded
Merge and be jointly circumferentially wound around described central canal group 100；Water inlet flow channel is formed between the interlayer of same described reverse osmosis diaphragm front；
Formed between the reverse side interlayer of adjacent two described reverse osmosis diaphragms and produce water flow passage；Described water inlet flow-guiding screen and described waste pipe
120 are positioned in water inlet flow channel, and described pure water flow-guiding screen is positioned in product water flow passage.Now, phase between water inlet flow channel with product water flow passage
The most independent, and thoroughly isolate, it is possible to the water inlet flow-guiding screen of effective each described reverse osmosis diaphragm group 200 of guarantee is not with described
DI 110 contacts with the reverse side of the reverse osmosis diaphragm of other described reverse osmosis diaphragm group 200；Each described reverse osmosis membrane
The pure water flow-guiding screen of sheet group 200 not with the reverse osmosis diaphragm of described waste pipe 120 and other described reverse osmosis diaphragm group 200
Front face；Former water only flows in water inlet flow channel and is finally discharged by waste pipe 120, and pure water only flows last in producing water flow passage
Discharged by DI 110, thus avoid pure water to pollute, it is ensured that clean-up effect.In order to smoothly pure water is derived, in this reality
Execute in example, the described product water flow passage equal closing seam of other sides in addition to the side near described DI 110 can be set,
So that the pure water that described product water flow passage only has towards described DI 110 exports；Now produce water flow passage and form three sides
Sealing the film bag of a side opening, film bag mouth faces toward DI 110, and the pure water limited in film bag can only flow towards DI 110；Former
Water produces pure water after the effect of reverse osmosis diaphragm, and pure water is formed in film bag and flow to bag mouth and enters in DI 110.Real
During the operation of border, carrying out realizing sealing when can be operated by wound membrane, the sealing station at two ends can also utilize two sealings simultaneously
Glue-line 300 carries out second time and seals, and then realizes better seal effect.
The Main Function of sealant layer 300 carries out secondary seal to film bag two ends exactly, it is to avoid water is from reverse-osmosis membrane element
The length direction two ends of 700 enter reverse osmosis diaphragm group 200, to this end, the thickness of described sealant layer 300 can not be the thinnest, at this
In embodiment, the thickness of the most described sealant layer 300 is 1-2mm, now can reach preferable sealing effectiveness, will not make again
Become unnecessary waste.Sealant layer 300 is formed by marine glue coating, and marine glue can be in reverse-osmosis membrane element 700 preparation
Conventional AB glue；Wherein the main component playing adhesive seal of AB glue include epoxy resin, acrylic modified epoxy resin or
At least one in polyurethane, it can reach good bonding effect and waterproof effect.
In order to reverse osmosis diaphragm group 200 and central canal group 100 are preferably positioned, refer to Fig. 4 and Fig. 5, at this
Inventing in another embodiment, described reverse-osmosis membrane element 700 ' also includes the first end cap 400 and the second end cap 500, described first
End cap 400 and the second end cap 500 are sheathed on described central canal group 100 and the two ends of described multipage reverse osmosis diaphragm group 200 respectively,
And be adhesively fixed with corresponding described sealant layer 300 respectively；Wherein, described first end cap 400 is provided with waste water discharge opening and pure
Water outlet；Or, described first end cap 400 is provided with waste water discharge opening, and described second end cap 500 is provided with pure water outlet；Institute
Stating waste pipe 120 and connect the setting of described waste water discharge opening, described DI 110 connects described pure water outlet and arranges.By
One end cap 400 and the second end cap 500 clamp the two ends of central canal group 100 and reverse osmosis diaphragm group 200 respectively to position, with
Time on the first end cap 400/ second end cap 500, pure water outlet and waste water discharge opening are set, formed corresponding with central canal group 100
The runner of pipeline connection, facilitates collection and the discharge of current.Described waste water discharge opening and described pure water outlet position is set
Can be arranged as required on the first end cap 400 or the second end cap 500, in the present embodiment, for the ease of the setting in water route.
Further referring to Fig. 5 to Fig. 7, in the present embodiment, in order to simplify water route, the second end cap 500 does not arrange outlet, institute
State waste water discharge opening and described pure water outlet may be contained within described first end cap 400, the second end cap 500 and central canal group
100 seal when coordinating, and in pure water in pure water and waste pipe 120, waste water will not flow to discharge towards the second end cap 500, but works as
When sealing effectiveness between second end cap 500 and central canal is the best, pure water and waste water are it is also possible that flow to the second end cap 500
To be discharged in the housing of filter element, thus affect purification efficiency；In order to avoid this situation, in the present embodiment, described pure water
One end mouth of pipe away from described first end cap 400 of pipe 110 is blocked, so that pure water is to the pure water of described first end cap 400
Outlet flows；One end mouth of pipe away from described first end cap 400 of described waste pipe 120 is blocked, so that waste water is to institute
State the first end cap 400 to flow.Now, pure water flow direction is certain, it is possible to collect pure water reliably, after closure, and waste water flowing side
To necessarily, it is possible to collect waste water reliably.When actually used, reverse-osmosis membrane element 700 ' is the most vertically placed, now,
Corresponding described DI 110 and multiple described waste pipe 120 are the most vertically put, the first end cap 400 up, second
End cap 500 is in lower section, and the lower port arranging described DI 110 is blocked, and the lower port of multiple described waste pipes 120 is all sealed
Stifled, collect pure water and waste water, uniform fluid flow from upper end, and be easy to the design of pipeline.
Refer to Fig. 5 and Fig. 6, in order to realize docking of waste pipe 120 and wastewater effluent mouth, described first end cap 400
The position of the corresponding described waste pipe 120 in inner side is convexly equipped with multiple the first of described waste water discharge opening that connects and stretches into pipe 410 with quantity,
Described first stretches into pipe 410 stretches in corresponding described waste pipe 120 to connect described waste water discharge opening and described waste pipe 120；
Concrete, first one end stretching into pipe 410 is stretched in waste pipe 120 and is connected with waste pipe 120, and first stretches into another of pipe 410
End connection waste water discharge opening, achieves the connection in water route reliably, first stretches into pipe 410 and also has positioning function simultaneously, it is possible to
Assist being directed at of the first end cap 400 and central canal group 100, improve structural compactness and the reliability of reverse-osmosis membrane element 700 '.
In order to realize docking of DI 110 and pure water outlet, the corresponding described DI 110 in the inner side of described first end cap 400
Position male is communicated with the second of described pure water outlet and stretches into pipe 420, and described second stretches into pipe 420 stretches into described DI
To connect described pure water outlet and described DI 110 in 110.Second effect stretching into pipe 420 and effect can be with analogies
One stretches into pipe 410, does not repeats them here.
Second end cap 500 is installed for convenience；Refer to Fig. 5 and Fig. 7, in the present embodiment, described second end cap 500
Position and the quantity of the corresponding described waste pipe 120 in inner side are convexly equipped with multiple first positioning convex 510, described first positioning convex
510 stretch in corresponding described waste pipe 120；The position male of the corresponding described DI 110 in the inner side of described second end cap 500 is provided with
Second positioning convex 520, described second positioning convex 520 stretches in described DI 110.By the first positioning convex 510 with
Waste pipe 120 coordinates, the second positioning convex 520 coordinates with DI 110, it is possible to simplify the alignment function of the second end cap 500, with
Time central canal group 100 be connected by the first positioning convex 510 and the second positioning convex 520 with the second end cap 500, can be further
Improve structural compactness and the reliability of whole reverse-osmosis membrane element 700 '.
For the first end cap 400 or/and the second end cap 500 bonds tightr with corresponding sealant layer 300, refer to figure
8, in the present embodiment, described first end cap 400 or/and described second end cap 500 described sealant layer 300 bonding end face
On be convexly equipped with reinforcement structure 430.Reinforcement structure 430 1 aspect strengthens the first end cap 400 or/and the intensity of the second end cap 500, separately
On the one hand, increase by the first end cap 400 or/and the second end cap 500 and the contact area of corresponding sealant layer 300, stretch into simultaneously
In sealant layer 300, thus improve bonding compactness, prevent the first end cap 400 or/and the second end cap 500 and corresponding sealing
Glue-line 300 departs from.In the present embodiment, as a example by the first end cap 400, this reinforcement structure 430 includes along described first end cap 400
Circumferentially disposed ring stiffener 431 and the bar shaped reinforcement 432 being radially arranged along the first end cap 400.Ring stiffener 431
Quantity can be multiple, and multiple ring stiffeners 431 are arranged in concentric annular, and the quantity of bar shaped reinforcement 432 can also be many
Individual, multiple bar shaped reinforcements 432 are radially arranged, and radially and circumferentially going up, the first end cap 400 are carried out reinforcement, increase simultaneously
The adhesion reliability of the first end cap 400 and corresponding sealant layer 300.
Referring to Fig. 9, and combine Fig. 1 to Fig. 3 and understand, the present invention also proposes the system of a kind of reverse-osmosis membrane element 700
Preparation Method, the reverse-osmosis membrane element 700 of the preparation present invention, the method includes:
Step S1, stretches in described central canal group 100 by the Part I of multiple described reverse osmosis diaphragm groups 200 so that
Each described waste pipe 120 and described DI 110 are separated by the Part I of a described reverse osmosis diaphragm group 200.Pass through
The Part I of every one page reverse osmosis membrane sheet group 200 is extend into the DI 110 in described central canal group 100 and waste pipe
Between 120, utilize the tow sides of reverse osmosis diaphragm to carry out the differentiation of runner, produce the reverse side of reverse osmosis diaphragm of pure water with pure
Water pipe 110 is adjacent, and the front producing the reverse osmosis diaphragm of waste water is connected with waste pipe 120, it is achieved pure water and former water
Isolation.In this step, typically film bag can be formed, by arranging the secondary seal of sealant layer 300 through a gluing so that
The accuracy requirement of this gluing reduces, and the tree lace of this gluing can be allowed to extend out, thus effective film area is substantially improved.
Step S2, is centered around the week of described central canal group 100 by the Part II of multiple described reverse osmosis diaphragm groups 200
Enclose, prepare semi-finished product module.The Part II of reverse osmosis diaphragm group 200 described in multipage, centered by central canal group 100, is passed through
The modes such as winding, back and forth bending are centered around central canal group 100 around, form a plurality of runner from central canal group 100 surrounding, for former
The flowing of water and pure water provides runner；Certainly, time around arrangement, should be noted that corresponding water inlet flow channel and produce the isolation of water flow passage.
Step S3, in the reverse osmosis diaphragm group 200 of described semi-finished product module at the two of described central canal group 100 length direction
End coating marine glue is also dried.Compared with traditional preparation method, in this method, maximum feature is exactly the wound membrane in step S2
After having operated, need the coating marine glue again in reverse osmosis diaphragm group 200, to form sealant layer 300, runner is carried out
Limit, it is achieved the secondary seal of film bag.
For the reverse-osmosis membrane element 700 ' being provided with end cap, can after step s 3, by the first end cap 400 He
Second end cap 500 lid is set to correspondence position, prepares corresponding reverse-osmosis membrane element 700 '；Refer to Figure 10, and combine Fig. 4 to Fig. 8
Understand, in another embodiment can also, upon step s 2, proceed as follows: step S3 ', at described first end
The inner side diapire coating marine glue of lid 400 and described second end cap 500, coating scope avoids described pure water outlet and described useless
Water outlet, is covered on the two ends of described semi-finished product module respectively by described first end cap 400 and described second end cap 500 and dries
Dry；Prepare corresponding reverse-osmosis membrane element 700 '.Due to, for the reverse-osmosis membrane element 700 ' having end cap, utilize step
During the operation coating marine glue of S3 ', coating scope is easier to determine, marine glue and the first end cap 400 and the second end cap 500
Bond tightr；Therefore, in the present embodiment, the most upon step s 2, according to step S3 ' operation, prepare reverse osmosis membrane
Element 700 '.
Referring to Figure 11, the present invention also proposes a kind of filter element, and this filter element includes housing 800, waterway converter 900 and reverse osmosis
(reverse-osmosis membrane element 700 ' in the present embodiment has the first end cap 400 and membrane element of the second end cap 500 to membrane element 700 '
Part), the concrete structure of this reverse-osmosis membrane element 700 ' is with reference to above-described embodiment, owing to this filter element have employed above-mentioned all embodiments
Whole technical schemes, there are all beneficial effects that the technical scheme of above-described embodiment is brought the most equally, at this no longer
Repeat one by one.Wherein, housing 800 includes body 810 and the lid 820 being covered on body 810, described reverse-osmosis membrane element
700 are placed in described housing 800；Described waterway converter 900 is provided with two independent water routes, wherein described water route with
Multiple described waste pipes 120 are connected, and another described water route is connected with described DI 110.
It should be noted that, the technical scheme of each embodiment of the present invention can be combined with each other, but must be with this
Based on the technical staff in field is capable of, when technical scheme combination occur conflicting maybe cannot realize time should people recognize
Combination for this technical scheme does not exists, the most not within the protection domain of application claims.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization
The equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (13)
1. a reverse-osmosis membrane element, it is characterised in that including:
Central canal group, described central canal group includes DI and the waste pipe of multiple spaced setting, multiple described waste water
Pipe ring is arranged around described DI；
Multipage reverse osmosis diaphragm group, each described reverse osmosis diaphragm group is respectively provided with first be positioned within described central canal group
Divide and be positioned at the Part II outside described central canal group, each described waste pipe and described DI by a described reverse osmosis
The Part I of diaphragm group separates；The Part II of multiple described reverse osmosis diaphragm groups forms the week being centered around described central canal group
The plural layers assembly enclosed；
Two sealant layers, two described sealant layers are respectively arranged at described multipage reverse osmosis diaphragm group in described central canal group
The two ends of length direction, and bonding with described multipage reverse osmosis diaphragm group.
2. reverse-osmosis membrane element as claimed in claim 1, it is characterised in that the thickness of described sealant layer is 1-2mm.
3. reverse-osmosis membrane element as claimed in claim 1, it is characterised in that described sealant layer is formed by the coating of AB glue.
4. reverse-osmosis membrane element as claimed in claim 1, it is characterised in that described reverse-osmosis membrane element also includes the first end cap
With the second end cap, described first end cap and the second end cap are sheathed on described central canal group and described multipage reverse osmosis diaphragm group respectively
Two ends, and be adhesively fixed with corresponding described sealant layer respectively；
Wherein, described first end cap is provided with waste water discharge opening and pure water outlet；Or, described first end cap is provided with waste water and discharges
Mouthful, described second end cap is provided with pure water outlet；Described waste pipe connects described waste water discharge opening and arranges, and described DI connects
Described pure water outlet is arranged.
5. reverse-osmosis membrane element as claimed in claim 4, it is characterised in that described waste water discharge opening and described pure water outlet
May be contained within described first end cap.
6. reverse-osmosis membrane element as claimed in claim 5, it is characterised in that
The position of the corresponding described waste pipe in the inner side of described first end cap is convexly equipped with quantity and multiple connects described waste water discharge opening
First stretch into pipe, described first stretches in the described waste pipe that pipe stretches to correspondence, and connects described waste water discharge opening and right
The described waste pipe answered；
The position male of the corresponding described DI in the inner side of described first end cap is communicated with the second of described pure water outlet and stretches into
Pipe, described second stretches into pipe stretches in described DI, and connects described pure water outlet and described DI.
7. reverse-osmosis membrane element as claimed in claim 5, it is characterised in that
The position of the corresponding described waste pipe in the inner side of described second end cap and quantity are convexly equipped with multiple first positioning convex, and described the
Positioning protrusion stretches to arrange in corresponding described waste pipe；
The position male of the corresponding described DI in the inner side of described second end cap is provided with the second positioning convex, described second positioning convex
Stretch to described DI is arranged.
8. reverse-osmosis membrane element as claimed in claim 4, it is characterised in that described first end cap is or/and described second end cap
Described sealant layer bonding end face on be convexly equipped with reinforcement structure.
9. reverse-osmosis membrane element as claimed in claim 8, it is characterised in that described reinforcement structure includes circumferentially arranged ring
Shape reinforcement and the bar shaped reinforcement being disposed radially.
10. reverse-osmosis membrane element as claimed in claim 1, it is characterised in that each described reverse osmosis diaphragm group includes instead
Infiltration diaphragm, water inlet flow-guiding screen and pure water flow-guiding screen；
The inside doubling in reverse osmosis diaphragm front of each described reverse osmosis diaphragm group is arranged, multiple described reverse osmosis diaphragm groups
Part II overlapping is also circumferentially wound around described central canal group jointly；Formed between the interlayer of same described reverse osmosis diaphragm front into
Water flow passage；Formed between the reverse side interlayer of adjacent two described reverse osmosis diaphragms and produce water flow passage；Described water inlet flow-guiding screen and described
Waste pipe is positioned in water inlet flow channel, and described pure water flow-guiding screen is positioned in product water flow passage.
The preparation method of 11. 1 kinds of reverse-osmosis membrane elements as according to any one of claim 1,2,3,10, it is characterised in that
Including:
Step S1, stretches in described central canal group by the Part I of multiple described reverse osmosis diaphragm groups so that each described useless
Water pipe and described DI are separated by the Part I of a described reverse osmosis diaphragm group；
Step S2, is centered around the Part II of multiple described reverse osmosis diaphragm groups around described central canal group, prepares half and becomes
Product assembly；
Step S3, waterproof in the coating of the two ends of described central canal group length direction in the reverse osmosis diaphragm group of described semi-finished product module
Glue is also dried.
The preparation method of 12. 1 kinds of reverse-osmosis membrane elements as according to any one of claim 4 to 9, it is characterised in that bag
Include:
Step S1, stretches in described central canal group by the Part I of multiple described reverse osmosis diaphragm groups so that each described useless
Water pipe and described DI are separated by the Part I of a described reverse osmosis diaphragm group；
Step S2, is centered around the Part II of multiple described reverse osmosis diaphragm groups around described central canal group, prepares half and becomes
Product assembly；
Step S3 ', at the inner side diapire coating marine glue of described first end cap and described second end cap, coating scope is avoided described
Pure water outlet and described waste water discharge opening, be covered on described semi-finished product group respectively by described first end cap and described second end cap
The two ends of part are also dried.
13. 1 kinds of filter elements, it is characterised in that include housing, waterway converter and as according to any one of claim 1 to 10
Reverse-osmosis membrane element；Described reverse-osmosis membrane element is placed in described housing；Described waterway converter is provided with two independent water
Road, wherein a described water route is connected with multiple described waste pipes, and another described water route is connected with described DI.
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| CN201610834876.5A CN106237861B (en) | 2016-09-20 | 2016-09-20 | Reverse osmosis membrane element, preparation method of reverse osmosis membrane element and filter element |
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| CN201610834876.5A CN106237861B (en) | 2016-09-20 | 2016-09-20 | Reverse osmosis membrane element, preparation method of reverse osmosis membrane element and filter element |
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| CN110618660A (en) * | 2018-06-19 | 2019-12-27 | 石家庄格力电器小家电有限公司 | Production control method and device of reverse osmosis membrane filter element, storage medium and water purifier |
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