CN106474928A - Water purifying device, reverse osmosis membrane set and manufacturing method thereof - Google Patents
Water purifying device, reverse osmosis membrane set and manufacturing method thereof Download PDFInfo
- Publication number
- CN106474928A CN106474928A CN201610901864.XA CN201610901864A CN106474928A CN 106474928 A CN106474928 A CN 106474928A CN 201610901864 A CN201610901864 A CN 201610901864A CN 106474928 A CN106474928 A CN 106474928A
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- reverse osmosiss
- tack coat
- reverse osmosis
- diaphragm group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000012528 membrane Substances 0.000 title abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000010612 desalination reaction Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 18
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000011033 desalting Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 7
- 230000001771 impaired effect Effects 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000926 separation method 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
- B01D63/06—Tubular membrane modules
- B01D63/061—Manufacturing thereof
-
- 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
- B01D63/067—Tubular membrane modules with pleated membranes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water purifying device, a reverse osmosis membrane set and a manufacturing method thereof. The manufacturing method of the reverse osmosis membrane group comprises the following steps: spreading the membrane; sticking a bonding layer on one side of the desalting layer of the membrane along the folding position of the membrane; and folding the membrane along the bonding layer to form a reverse osmosis membrane group. In addition, the bonding layer can also avoid the problem of poor sealing caused by the wrinkling of the membrane in the winding process of the reverse osmosis membrane set, thereby improving the desalination rate and the filtering effect of the reverse osmosis membrane element.
Description
Technical field
The present invention relates to reverse osmosiss diaphragm field, in particular to a kind of purifier, reverse osmosiss diaphragm group and its system
Make method.
Background technology
In prior art, typically utilize in wound membrane element complete Separation membrane twice or formed after multiple folding
Two or more film bags (page) accordingly.But, in diaphragm folding process, folding line can be formed.
At present, diaphragm doubling operation is general is operated using artificial, and the desalination layer of reverse osmosiss diaphragm is very thin (about
0.2um), therefore diaphragm, in folding process, easily causes desalination layer impaired, causes the seepage of salt ion at its folding line.Especially
It is that, when folding times increase, accumulation salt ion infiltration capacity increases, the salt rejection rate ultimately resulting in membrane component declines, and impact is filtered
Effect.
Content of the invention
A kind of purifier, reverse osmosiss diaphragm group and preparation method thereof is provided, to solve existing skill in the embodiment of the present invention
Folding in art leads to the salt rejection rate of membrane component to decline, the problem of impact filter effect.
For achieving the above object, the embodiment of the present invention provides a kind of reverse osmosiss diaphragm group manufacture method, including：Diaphragm is put down
Drawout；One layer of tack coat is pasted in side along the desalination layer in diaphragm for the folding position of diaphragm；Along tack coat doubling diaphragm from
And form a reverse osmosiss diaphragm group.
Preferably, method also includes for water inlet filter being placed in the step in the interlayer of the diaphragm after folding.
Preferably, tack coat is adhesive tape.
Preferably, the width of tack coat is 0.5 to 1 centimetre.
Preferably, the thickness of tack coat is less than 0.1 millimeter.
Preferably, described diaphragm is single page diaphragm or multipage diaphragm.
Present invention also offers a kind of reverse osmosiss diaphragm group, made using above-mentioned reverse osmosiss diaphragm group manufacture method.
Present invention also offers a kind of purifier, including above-mentioned reverse osmosiss diaphragm group.
The present invention pastes one layer of tack coat in advance at folding line in advance, therefore can be effectively prevented from the diaphragm in folding process
The impaired problem of desalination layer, additionally, this tack coat also can avoid diaphragm in reverse osmosiss diaphragm group winding process to occur wrinkle to lead to
Seal not good problem, improve reverse-osmosis membrane element salt rejection rate and filter effect.
Brief description
Fig. 1 is that the reverse osmosiss diaphragm group of the embodiment of the present invention is in schematic diagram during deployed condition；
Fig. 2 is the folding process schematic diagram of the reverse osmosiss diaphragm group of the embodiment of the present invention.
Description of reference numerals：1st, diaphragm；2nd, tack coat；3rd, water inlet filter；4th, folding line.
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, but not as the limit to the present invention
Fixed.
The method for coiling presence of reverse osmosis membrane of the prior art is easily damaged because of the desalination layer in the diaphragm front of folding line position
And causing membrane component entirety salt rejection rate to decline even underproof problem and drawback, existing membrane component is typically by single page film or multipage
Film (page two or be more than page two) rolls and completes, and is prepared into single page membrane component or multipage membrane component respectively, after every page of film doubling in advance
In the middle of placing, one layer of water inlet filter forms one group of diaphragm group, and therefore, for the more membrane components of number of pages, folding position is more, film
Piece desalination layer damaged risk is bigger, and salt rejection rate is impacted bigger.
For this reason, the present invention makes reverse osmosiss diaphragm group in the following ways, to overcome drawbacks described above.
First, a piece of diaphragm 1 is tiled in operating table surface expansion, and make the side direction of its desalination layer.Wherein, described
Diaphragm 1 can be single page diaphragm or multipage diaphragm etc..
Then, this diaphragm 1 finds out folding position, and the side of the desalination layer in diaphragm 1 along this folding position
One layer of tack coat 2 is pasted on surface；Preferably, tack coat 2 is adhesive tape or other adhesive tapes naturally it is also possible to be the one of coating
The gluey adhesive of layer.Wherein, the reference 4 in Fig. 1 represents predetermined folding position, will form one in this folded position
Folding line
Again, as shown in Fig. 2 being used for or other instrument doubling diaphragms 1 along tack coat 2, and make it smooth, thus forming one
Individual reverse osmosiss diaphragm group.
Because, during folding, the present invention pastes one layer of tack coat 2 in advance at folding line in advance, therefore can be effectively
Avoid the impaired problem of the diaphragm desalination layer in folding process, additionally, this tack coat 2 also can avoid reverse osmosiss diaphragm group to wind
In journey, diaphragm occurs wrinkle to lead to seal not good problem, improves reverse-osmosis membrane element salt rejection rate and filter effect.
It can be seen that, the tack coat in the present invention can avoid diaphragm impaired in folding process, and makes winding process smooth, can protect
Card sealing effectiveness, reduce salt ion seepage risk it is ensured that and improve reverse-osmosis membrane element salt rejection rate.
Because tack coat pastes the front of diaphragm, the effective filtration membrane area at paste position can be sacrificed, therefore apply for
People find tack coat can not wide, its thickness nor blocked up, otherwise will affect folding effect.For this reason, it is viscous in the present invention
The width of knot layer 2 is 0.5 to 1 centimetre, thickness is less than 0.1 millimeter.
As shown in Fig. 2 the method in the present invention also includes water inlet filter 3 is placed in the interlayer of the diaphragm after folding 1
Step.
Present invention also offers a kind of reverse osmosiss diaphragm group, made using above-mentioned reverse osmosiss diaphragm group manufacture method.This
Reverse osmosiss diaphragm group in invention is not in the phenomenon of the easy wrinkle of diaphragm in winding process, and winding process smoothness is without hindrance, can grasp
The property made is strong.
Present invention also offers a kind of purifier, including above-mentioned reverse osmosiss diaphragm group.
Certainly, it is more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of without departing from its general principles, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of reverse osmosiss diaphragm group manufacture method is it is characterised in that include：
Diaphragm (1) is tiled and launches；
One layer of tack coat (2) is pasted in side along the desalination layer in described diaphragm (1) for the folding position of described diaphragm (1)；
Along diaphragm (1) described in described tack coat (2) doubling thus forming a reverse osmosiss diaphragm group.
2. reverse osmosiss diaphragm group manufacture method according to claim 1 is it is characterised in that methods described also includes intaking
Filter (3) is placed in the step in the interlayer of the described diaphragm (1) after folding.
3. reverse osmosiss diaphragm group manufacture method according to claim 1 is it is characterised in that described tack coat (2) is adhesive tape.
4. reverse osmosiss diaphragm group manufacture method according to claim 1 is it is characterised in that the width of described tack coat (2)
For 0.5 to 1 centimetre.
5. reverse osmosiss diaphragm group manufacture method according to claim 1 is it is characterised in that the thickness of described tack coat (2)
Less than 0.1 millimeter.
6. reverse osmosiss diaphragm group manufacture method according to claim 1 is it is characterised in that described diaphragm (1) is single page film
Piece or multipage diaphragm.
7. a kind of reverse osmosiss diaphragm group is it is characterised in that adopt the reverse osmosiss diaphragm group any one of claim 1 to 6
Manufacture method is made.
8. a kind of purifier is it is characterised in that include the reverse osmosiss diaphragm group described in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610901864.XA CN106474928A (en) | 2016-10-17 | 2016-10-17 | Water purifying device, reverse osmosis membrane set and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610901864.XA CN106474928A (en) | 2016-10-17 | 2016-10-17 | Water purifying device, reverse osmosis membrane set and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106474928A true CN106474928A (en) | 2017-03-08 |
Family
ID=58270103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610901864.XA Pending CN106474928A (en) | 2016-10-17 | 2016-10-17 | Water purifying device, reverse osmosis membrane set and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106474928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999372A (en) * | 2022-12-27 | 2023-04-25 | 佛山市麦克罗美的滤芯设备制造有限公司 | Membrane element, manufacturing method thereof, filter element and water purification system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137559A (en) * | 1996-11-11 | 1998-05-26 | Nitto Denko Corp | Spiral separation membrane element and its production |
| JPH10137558A (en) * | 1996-11-11 | 1998-05-26 | Nitto Denko Corp | Spiral separation membrane element and its production |
| JP2003290635A (en) * | 2002-04-03 | 2003-10-14 | Toray Ind Inc | Spiral type fluid separation membrane element |
| US20050121380A1 (en) * | 2002-06-21 | 2005-06-09 | Ge Osmonics, Inc. | Blister protection for spiral wound elements |
| CN1676203A (en) * | 2003-10-02 | 2005-10-05 | 日东电工株式会社 | Spiral membrane element and method of manufacturing the same |
| WO2007037939A1 (en) * | 2005-09-28 | 2007-04-05 | Ge Ionics, Inc. | Fold protection for spiral wound filter element |
| CN101322918A (en) * | 2007-06-11 | 2008-12-17 | 日东电工株式会社 | Spiral membrane element and method of producing the same |
| CN103889560A (en) * | 2011-10-19 | 2014-06-25 | 通用电气公司 | Improved material efficiency and fabrication of membrane elements |
-
2016
- 2016-10-17 CN CN201610901864.XA patent/CN106474928A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137559A (en) * | 1996-11-11 | 1998-05-26 | Nitto Denko Corp | Spiral separation membrane element and its production |
| JPH10137558A (en) * | 1996-11-11 | 1998-05-26 | Nitto Denko Corp | Spiral separation membrane element and its production |
| JP2003290635A (en) * | 2002-04-03 | 2003-10-14 | Toray Ind Inc | Spiral type fluid separation membrane element |
| US20050121380A1 (en) * | 2002-06-21 | 2005-06-09 | Ge Osmonics, Inc. | Blister protection for spiral wound elements |
| CN1676203A (en) * | 2003-10-02 | 2005-10-05 | 日东电工株式会社 | Spiral membrane element and method of manufacturing the same |
| WO2007037939A1 (en) * | 2005-09-28 | 2007-04-05 | Ge Ionics, Inc. | Fold protection for spiral wound filter element |
| CN101322918A (en) * | 2007-06-11 | 2008-12-17 | 日东电工株式会社 | Spiral membrane element and method of producing the same |
| CN103889560A (en) * | 2011-10-19 | 2014-06-25 | 通用电气公司 | Improved material efficiency and fabrication of membrane elements |
Non-Patent Citations (1)
| Title |
|---|
| S.SOURIRAJAN编著: "《反渗透与合成膜》", 30 June 1987, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999372A (en) * | 2022-12-27 | 2023-04-25 | 佛山市麦克罗美的滤芯设备制造有限公司 | Membrane element, manufacturing method thereof, filter element and water purification system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170308 |
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| RJ01 | Rejection of invention patent application after publication |