CN108671759A - A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt - Google Patents
A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt Download PDFInfo
- Publication number
- CN108671759A CN108671759A CN201810730067.9A CN201810730067A CN108671759A CN 108671759 A CN108671759 A CN 108671759A CN 201810730067 A CN201810730067 A CN 201810730067A CN 108671759 A CN108671759 A CN 108671759A
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- China
- Prior art keywords
- osmosis membrane
- reverse
- reverse osmosis
- convection current
- single layer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus 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
- B01D61/08—Apparatus therefor
-
- 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
Abstract
The invention discloses a kind of sides into convection current reverse-osmosis membrane element and reverse osmosis membrane filt comprising：Single layer reverse osmosis membrane, the inside doubling of reverse side are built up the double-deck diaphragm, and the reverse side interlayer of the double-deck diaphragm is production water flow passage, and the front interlayer of the double-deck diaphragm is water inlet flow channel, and water inlet flow-guiding screen is equipped in water inlet flow channel, pure water flow-guiding screen is equipped in production water flow passage；Central tube is mounted on the reverse side interlayer middle position of the double-deck diaphragm, is fixedly connected after the mutual doubling of single layer reverse osmosis membrane of central tube both sides, and single layer reverse osmosis membrane is circumferentially wrapped on central tube and forms film roll；Adhesive waterproof tape is wrapped in the both ends outer surface of film roll；Wherein, the both ends that the surrounding of single layer reverse osmosis membrane, central tube are in contact with single layer reverse osmosis membrane are tightly connected.The invention avoids foulings, improve the utilization rate of reverse osmosis membrane, reduce the cost that client replaces membrane component.Meanwhile manufacturing cost is reduced, it is easy to roll, and can put into large-scale production.
Description
Technical field
The present invention relates to purifier technical field more particularly to a kind of sides into convection current reverse-osmosis membrane element and reverse osmosis membrane
Filter.
Background technology
Conventional roll reverse-osmosis membrane element is will to be superimposed structure by reverse osmosis membrane, water inlet grid, pure water flow-guiding screen on the market
At composite multi-layer winding central, tubular be placed at, central tube and to fold reverse osmosis membrane between, water inlet grid is located at reverse osmosis membrane
The water inlet flow channel constituted between inner surface after piece folding, pure water flow-guiding screen are located between the outer surface after reverse osmosis membrane folds
The production water flow passage of composition, this coiled reverse osmosis membrane element are to use the both sides of the face of reverse osmosis membrane and winding central tube tube wall
Glue bonds, and entire outer surface carries out environmental sealing with adhesive tape, then adds one layer of sealing ring.This conventional roll ro components
One end be raw water channel, a part of raw water is filtered through reverse osmosis membrane to be formed pure water and flows into central tube along pure water flow-guiding screen
Interior, the remaining concentrated water for not filtering formation is flowed out along water inlet grid from the other end of element.This coiled reverse osmosis membrane element
Water inlet direction and the direction of concentrated water discharge be consistent, short into raw water runner and there is filtering dead angle, usage time grows
Easy fouling, filter efficiency reduce, the membrane component lost of life.
Invention content
The technical issues of in the presence of the present invention mainly solution prior art, to provide a kind of filter efficiency height, film
The side of component life length is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt.
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：
Side provided by the invention is into convection current reverse-osmosis membrane element comprising：
Single layer reverse osmosis membrane, the inside doubling of reverse side are built up the double-deck diaphragm, and the reverse side interlayer of the bilayer diaphragm is
Water flow passage is produced, the front interlayer of the bilayer diaphragm is water inlet flow channel, and water inlet flow-guiding screen, the production are equipped in the water inlet flow channel
Pure water flow-guiding screen is equipped in water flow passage；
Central tube is mounted on the reverse side interlayer middle position of the double-deck diaphragm, described to be located at the central tube both sides
The mutual doubling of single layer reverse osmosis membrane after be fixedly connected, and single layer reverse osmosis membrane is circumferentially wrapped in the central tube
Upper formation film roll；
Adhesive waterproof tape is wrapped in the both ends outer surface of the film roll；
Wherein, the surrounding of the single layer reverse osmosis membrane, the central tube are in contact with the single layer reverse osmosis membrane
Both ends are tightly connected.
Further, the one end open of the central tube, other end closing, and be symmetrically distributed on the central tube
Multiple inlet openings, the inlet opening are connected with the production water flow passage.
Further, the single layer reverse osmosis membrane includes single page reverse osmosis membrane or pair of pages reverse osmosis membrane.
Further, the width of the film roll is 1800 ± 400mm, and outer diameter and the width ratio of the film roll are greater than or equal to
0.015。
Further, the width of the adhesive waterproof tape be less than the film roll width 25%, be located at the adhesive waterproof tape it
Between the film roll outer surface be cased with PP grid.
Further, the both ends outer surface of the film roll is additionally provided with sealing ring, and the sealing ring is coated on the marine glue
It takes.
The reverse osmosis membrane filt provided by the invention being made of into convection current reverse-osmosis membrane element side described above, packet
It includes：
Filter element shell, surface are provided with water inlet, pure water mouth and waste water mouth, and the side is installed into convection current reverse-osmosis membrane element
In the inside of the filter element shell；In the sealed ring in both ends and the filter element shell of the side into convection current reverse-osmosis membrane element
Portion be tightly connected, the side between the middle part of convection current reverse-osmosis membrane element and the inside of the filter element shell have a gap,
The water inlet is connected with the water inlet flow channel, and the pure water mouth is connected with the production water flow passage, the waste water mouth and institute
Gap is stated to be connected；
End cover of filter element, thread seal is in the tail portion of the filter element shell.
The beneficial effects of the present invention are：
(1), it after raw water enters water inlet flow channel, can be flowed along the winding direction of the double-deck diaphragm, so that effectively
Runner is elongated so that water inlet is uniform, and there is no the dead zones of conventional membrane component, avoid fouling, improve reverse osmosis membrane
Utilization rate, reduce client replace membrane component cost.
(2), the width of film roll is adjusted so that the runner of the double-deck diaphragm narrows, and further increases raw water in water inlet flow channel
Flowing velocity, overcome the concentration polarization effect of the double-deck membrane surface, lower membrane component pollution.
(3), central tube and package adhesive tape are shortened, reduces manufacturing cost, it is easy to roll, and can put into large-scale production.
(4), the service life of membrane component can be extended, but also be increased without other particular components, lower manufacturing cost,
Overall construction design is fairly simple.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the attachment structure schematic diagram of the single layer reverse osmosis membrane and central tube of the present invention；
Fig. 2 is the sealing state schematic diagram of the single page reverse osmosis membrane of the present invention；
Fig. 3 is the sealing state schematic diagram of the pair of pages reverse osmosis membrane of the present invention；
Fig. 4 is the side of the present invention into outer diameter and the width indication figure of convection current reverse-osmosis membrane element；
Fig. 5 be the present invention side into convection current reverse-osmosis membrane element Inlet and outlet water schematic diagram；
Fig. 6 be the present invention side into convection current reverse-osmosis membrane element doubling gluing trailing flank Inlet and outlet water schematic diagram；
Fig. 7 be the present invention side into convection current reverse-osmosis membrane element both ends adhesive waterproof tape width schematic diagram；
Fig. 8 be the present invention side into convection current reverse-osmosis membrane element sealing ring position and its sealed width schematic diagram；
Fig. 9 is the cross-sectional view of the shell of the reverse osmosis membrane filt of the present invention；
Figure 10 is the surface structure schematic diagram of the reverse osmosis membrane filt of the present invention.
Specific implementation mode
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Refering to fig. 1 shown in -8, side of the invention is into convection current reverse-osmosis membrane element comprising：
Single layer reverse osmosis membrane 1, the inside doubling of reverse side are built up the double-deck diaphragm, and the reverse side interlayer of the double-deck diaphragm is production water
The front interlayer of runner 2, the double-deck diaphragm is water inlet flow channel 3, and water inlet flow-guiding screen (not shown), production are equipped in water inlet flow channel 3
Pure water flow-guiding screen (not shown) is equipped in water flow passage 2；
Central tube 4 is mounted on the reverse side interlayer middle position of the double-deck diaphragm, is located at the single layer reverse osmosis of 4 both sides of central tube
It is fixedly connected after the 1 mutual doubling of permeable membrane piece, and single layer reverse osmosis membrane 1 is circumferentially wrapped in formation film roll 5 on central tube 4；
Adhesive waterproof tape 6 is wrapped in the both ends outer surface of film roll 5；
Wherein, the both ends that the surrounding of single layer reverse osmosis membrane 1, central tube 4 are in contact with single layer reverse osmosis membrane 1 seal
Connection.
In the present invention, the one end open of central tube 4, the other end closing, and be symmetrically distributed on central tube 4 it is multiple into
Water hole, inlet opening are connected with production water flow passage 2.Production water flow passage 2 in pure water be flowed into central tube 4 through inlet opening, then from
It flows out the open end of central tube 4.
Preferably, single layer reverse osmosis membrane 1 includes single page reverse osmosis membrane or pair of pages reverse osmosis membrane.Specifically, single page
Reverse osmosis membrane forms the double-deck diaphragm after symmetrical fold, and pure water flow-guiding screen is added between the double-deck diaphragm, in the double-deck diaphragm
Between installation center pipe 4, gluing between the three uncapped faces and central tube 4 of the double-deck diaphragm in the deployed state.Specifically, pair of pages
Reverse osmosis membrane forms the double-deck diaphragm after symmetrical overlapping, and pure water flow-guiding screen is added between the double-deck diaphragm, in symmetrical overlapped film
Installation center pipe 4 among piece is overlapped gluing between the four uncapped faces and central tube 4 of the double-deck diaphragm in the deployed state.
In the present invention, the width B of film roll 5 is 1800 ± 400mm, and outer diameter A and the width B ratios of film roll are greater than or equal to
0.015.Preferably, the width of adhesive waterproof tape 6 is less than the 25% of 5 width of film roll, 5 appearance of film roll between adhesive waterproof tape 6
Surface cover has PP grid.
Preferably, the both ends outer surface of film roll 5 is additionally provided with sealing ring 7, and sealing ring 7 is coated on adhesive waterproof tape 6.
Refering to shown in Fig. 9-10, the reverse osmosis membrane filt of the invention being made of into convection current reverse-osmosis membrane element side,
Including：
Filter element shell 8, surface are provided with water inlet 81, pure water mouth 82 and waste water mouth 83, and side is into convection current reverse-osmosis membrane element
Mounted on the inside of filter element shell 8；The sealed ring 7 in both ends of side into convection current reverse-osmosis membrane element and the inside of filter element shell 8 are close
Envelope connection, side between the middle part of convection current reverse-osmosis membrane element and the inside of filter element shell 8 have a gap 9, water inlet 81 with
Water inlet flow channel 3 is connected, and pure water mouth 82 is connected with production water flow passage 2, and waste water mouth 83 is connected with gap 9；Preferably, filter core end
10 thread seal of lid is in the tail portion of filter element shell 8.
The advantage of the invention is that：
(1), it after raw water enters water inlet flow channel, can be flowed along the winding direction of the double-deck diaphragm, so that effectively
Runner is elongated so that water inlet is uniform, and there is no the dead zones of conventional membrane component, avoid fouling, improve reverse osmosis membrane
Utilization rate, reduce client replace membrane component cost.
(2), the width of film roll is adjusted so that the runner of the double-deck diaphragm narrows, and further increases raw water in water inlet flow channel
Flowing velocity, overcome the concentration polarization effect of the double-deck membrane surface, lower membrane component pollution.
(3), central tube and package adhesive tape are shortened, reduces manufacturing cost, it is easy to roll, and can put into large-scale production.
(4), the service life of membrane component can be extended, but also be increased without other particular components, lower manufacturing cost,
Overall construction design is fairly simple.
More than, specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should be covered by the protection scope of the present invention.Therefore, protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of side is into convection current reverse-osmosis membrane element, which is characterized in that including：
Single layer reverse osmosis membrane, the inside doubling of reverse side are built up the double-deck diaphragm, and the reverse side interlayer of the bilayer diaphragm is production water
The front interlayer of runner, the bilayer diaphragm is water inlet flow channel, and water inlet flow-guiding screen, the production flow are equipped in the water inlet flow channel
Pure water flow-guiding screen is equipped in road；
Central tube is mounted on the reverse side interlayer middle position of the double-deck diaphragm, the institute positioned at the central tube both sides
It is fixedly connected after stating the mutual doubling of single layer reverse osmosis membrane, and single layer reverse osmosis membrane is circumferentially wrapped in shape on the central tube
At film roll；
Adhesive waterproof tape is wrapped in the both ends outer surface of the film roll；
Wherein, the both ends that the surrounding of the single layer reverse osmosis membrane, the central tube are in contact with the single layer reverse osmosis membrane
It is tightly connected.
2. side as described in claim 1 is into convection current reverse-osmosis membrane element, which is characterized in that the one end open of the central tube,
Its other end is closed, and multiple inlet openings have been symmetrically distributed on the central tube, the inlet opening and the production water flow passage phase
Connection.
3. side as claimed in claim 2 is into convection current reverse-osmosis membrane element, which is characterized in that the single layer reverse osmosis membrane includes
Single page reverse osmosis membrane or pair of pages reverse osmosis membrane.
4. side as described in any one of claims 1-3 is into convection current reverse-osmosis membrane element, which is characterized in that the width of the film roll
For 1800 ± 400mm, outer diameter and the width ratio of the film roll are greater than or equal to 0.015.
5. side as claimed in claim 4 is into convection current reverse-osmosis membrane element, which is characterized in that the width of the adhesive waterproof tape is less than
The 25% of the film roll width, the film roll outer surface between the adhesive waterproof tape are cased with PP grid.
6. side as claimed in claim 5 is into convection current reverse-osmosis membrane element, which is characterized in that the both ends outer surface of the film roll is also
Equipped with sealing ring, the sealing ring is coated on the adhesive waterproof tape.
7. a kind of reverse osmosis membrane filt being made of into convection current reverse-osmosis membrane element claim 1-6 any one of them side,
It is characterised in that it includes：
Filter element shell, surface are provided with water inlet, pure water mouth and waste water mouth, and the side is mounted on institute into convection current reverse-osmosis membrane element
State the inside of filter element shell；The sealed ring in both ends of the side into convection current reverse-osmosis membrane element and the inside of the filter element shell are close
Envelope connection, the side between the middle part of convection current reverse-osmosis membrane element and the inside of the filter element shell have a gap, it is described
Water inlet is connected with the water inlet flow channel, and the pure water mouth is connected with the production water flow passage, the waste water mouth and it is described between
Gap is connected；
End cover of filter element, thread seal is in the tail portion of the filter element shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730067.9A CN108671759A (en) | 2018-07-05 | 2018-07-05 | A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730067.9A CN108671759A (en) | 2018-07-05 | 2018-07-05 | A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt |
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| Publication Number | Publication Date |
|---|---|
| CN108671759A true CN108671759A (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810730067.9A Pending CN108671759A (en) | 2018-07-05 | 2018-07-05 | A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508138A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | Coiled reverse osmosis membrane element production method |
-
2018
- 2018-07-05 CN CN201810730067.9A patent/CN108671759A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508138A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | Coiled reverse osmosis membrane element production method |
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