CN221027848U - Tandem reverse osmosis membrane water treatment device - Google Patents
Tandem reverse osmosis membrane water treatment device Download PDFInfo
- Publication number
- CN221027848U CN221027848U CN202322648529.1U CN202322648529U CN221027848U CN 221027848 U CN221027848 U CN 221027848U CN 202322648529 U CN202322648529 U CN 202322648529U CN 221027848 U CN221027848 U CN 221027848U
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- China
- Prior art keywords
- reverse osmosis
- osmosis membrane
- water treatment
- stock solution
- tandem
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- 239000012528 membrane Substances 0.000 title claims abstract description 103
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000000243 solution Substances 0.000 claims abstract description 21
- 239000011550 stock solution Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 239000012141 concentrate Substances 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 11
- 239000004760 aramid Substances 0.000 claims description 10
- 229920003235 aromatic polyamide Polymers 0.000 claims description 10
- 239000004952 Polyamide Substances 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 239000004695 Polyether sulfone Substances 0.000 claims description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- 229920006393 polyether sulfone Polymers 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- 238000009940 knitting Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 31
- 238000000926 separation method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a serial reverse osmosis membrane water treatment device, which comprises a stock solution water tank and a serial reverse osmosis membrane assembly, wherein the serial reverse osmosis membrane assembly comprises a pressure-resistant shell, a plurality of reverse osmosis membrane filter core units are axially connected in series in the pressure-resistant shell, a stock solution inlet, a concentrated solution outlet and a pure water outlet are formed in the pressure-resistant shell, a stock solution inlet pipeline is arranged between the stock solution water tank and the stock solution inlet, a driving pump and a one-way valve are sequentially arranged on the stock solution inlet pipeline along the liquid inlet direction, the concentrated solution outlet is connected with a concentrated solution outlet main pipeline, two branch pipelines of a concentrated solution discharge branch and a concentrated solution reflux branch are formed at the tail end of the concentrated solution outlet main pipeline, and the concentrated solution reflux branch is communicated with the stock solution inlet pipeline. The treatment device adopts the series reverse osmosis membrane filter core, has high membrane strength, is durable in use, is convenient for flexible replacement, reduces maintenance cost, and is beneficial to improving production efficiency.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a serial reverse osmosis membrane water treatment device.
Background
Research on membrane separation technology, in order to obtain fresh water from seawater or brackish water, began to study reverse osmosis membranes from the beginning of the 50 th century. Since the middle 60 s of the last century, membrane separation technology has truly achieved industrialization. The structure and type of the membrane assembly depend on the shape of the membrane, and the industrially applied membrane assembly mainly comprises four types of hollow fiber type, tubular type, spiral roll type and plate frame type. As a novel, efficient and energy-saving separation technology, membrane separation technology gradually occupies an important position in the field of water and other liquid separation. The membrane material also develops from an initial single cellulose acetate asymmetric membrane to a novel material such as a crosslinked aromatic polyamide composite membrane prepared by a surface polymerization technology and a high-efficiency membrane. The reverse osmosis composite membrane has the advantages of compact equipment configuration, small occupied area, low water yield per unit volume, low energy consumption and the like, and can flow out desalted water by virtue of the capillary action of the membrane under the condition of no phase change under the pushing of pressure higher than osmotic pressure, and has the screening function of the membrane, so that extremely small bacteria, viruses and the like can be removed. However, in practical applications, the support layer of the reverse osmosis composite membrane generally adopts an ultrafiltration membrane with low tensile strength, the interlayer bonding strength between the membrane layers is low, the peeling resistance is poor, and the reverse osmosis composite membrane is not durable in use, and in the treatment device of the reverse osmosis membrane, the reverse osmosis membrane assembly needs to be replaced integrally, so that the maintenance and replacement cost is high, the flexibility and the usability are poor, and the production efficiency is reduced.
Disclosure of utility model
Aiming at the defects of the prior art, the application aims to provide the serial reverse osmosis membrane water treatment device which adopts a serial reverse osmosis membrane filter core, has high membrane strength, is durable in use, is convenient for flexible replacement, reduces maintenance cost and is beneficial to improving production efficiency.
The application solves the technical problems through the following technical proposal.
The utility model provides a tandem type reverse osmosis membrane water treatment facilities, includes stoste basin and tandem type reverse osmosis membrane module, tandem type reverse osmosis membrane module includes pressure-resistant housing, the axial is established ties in the pressure-resistant housing has a plurality of reverse osmosis membrane filter core units, reverse osmosis membrane filter core unit includes the core pipe, the both ends mouth of pipe of core pipe is equipped with input serial connection interface and output serial connection interface respectively, a plurality of oozing liquid holes have been seted up on the core pipe wall, the outside spiral winding of core pipe has the reverse osmosis membrane body, stoste import, concentrate export and pure water export have been seted up on the pressure-resistant housing, stoste basin with be provided with stoste feed liquor pipeline between the stoste import, drive pump and check valve have been set gradually along the feed liquor direction on the stoste feed liquor pipeline, concentrate exit linkage has concentrate to go out main line, concentrate drain branch road and concentrate reflux branch road and concentrate feed liquor pipeline are linked together.
Preferably, the reverse osmosis membrane body is formed by integrating a plurality of warp knitting net fiber reinforced support outer layers and a stripping-resistant reverse osmosis composite membrane layer by layer.
Preferably, the stripping-resistant reverse osmosis composite membrane comprises a polyethersulfone hydrophobic porous membrane layer, a crosslinked polyamide porous membrane supporting layer and a crosslinked aromatic polyamide reverse osmosis membrane layer which are laminated together and integrated by heat sealing.
Preferably, the polyethersulfone hydrophobic porous membrane layer has a thickness of 15 microns to 100 microns.
Preferably, the crosslinked polyamide porous membrane support layer has a thickness of 20 micrometers to 250 micrometers.
Preferably, the crosslinked aromatic polyamide reverse osmosis membrane layer has a thickness of 50 nm to 450 nm.
Preferably, the warp knitted net fiber reinforced support outer layer has a thickness of 0.1 mm to 1.2 mm.
Preferably, a first flow regulating valve is arranged on the main liquid outlet pipeline of the concentrated liquid.
Preferably, the concentrate discharge branch is provided with a first flow rate meter, and the concentrate return branch is provided with a second flow rate adjustment valve.
Preferably, the stock solution inlet pipeline is provided with a second flowmeter and a pressure sensor.
The application has the beneficial effects that:
1. The whole device has the advantages of simple process design, compact and reasonable pipeline structure, small occupied space, easy arrangement, and serial reverse osmosis membrane components with internal structures of a plurality of reverse osmosis membrane filter core units which are connected in series, each filter core unit can be independently replaced and installed, the installation, maintenance and replacement are simple and convenient, the connection is reliable, the maintenance cost is reduced, and the production efficiency is greatly improved.
2. The polyether sulfone hydrophobic porous membrane layer, the crosslinked polyamide porous membrane supporting layer and the crosslinked aromatic polyamide reverse osmosis membrane layer are in a heat seal lamination structure together, so that the bonding layer is removed, meanwhile, the bonding strength is guaranteed, the tensile strength is better, the fracture is not easy to occur, the porous membrane layer is durable to use, the stress is dispersed, the porosity and the pore diameter design are optimized, the pressure resistance characteristic and the permeability are better, and the chemical stability is better.
3. The crosslinked aromatic polyamide reverse osmosis membrane layer has better anti-pollution property and high chlorine resistance, effectively inhibits the reduction of water permeability and desalination performance, can penetrate into micropores of the crosslinked polyamide porous membrane supporting layer to be combined into a whole, keeps long-time membrane separation precision, and has the advantages of high separation and permeation efficiency, better water permeability, high membrane strength, excellent stripping resistance and durability.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the background art, the following description will describe the drawings that are required to be used in the embodiments of the present application or the background art.
FIG. 1 is a schematic diagram of an embodiment of the present application;
fig. 2 is a schematic structural view of a reverse osmosis membrane cartridge unit according to an embodiment of the present application.
In the figure: the device comprises a 1-raw liquid water tank, a 2-serial reverse osmosis membrane component, a 3-pressure-resistant shell, a 4-reverse osmosis membrane filter element unit, a 41-core tube, a 42-input serial interface, a 43-output serial interface, a 44-liquid permeation hole, a 45-warp-knitted net fiber reinforced support outer layer, a 46-stripping-resistant reverse osmosis composite membrane, a 461-polyethersulfone hydrophobic porous membrane layer, a 462-crosslinked polyamide porous membrane support layer, a 463-crosslinked aromatic polyamide reverse osmosis membrane layer, a 5-raw liquid inlet, a 6-concentrated liquid outlet, a 7-pure water outlet, an 8-raw liquid inlet pipeline, a 9-driven pump, a 10-one-way valve, a 11-concentrated liquid outlet main pipeline, a 12-concentrated liquid discharge branch, a 13-concentrated liquid reflux branch, a 14-first flow regulating valve, a 15-first flow meter, a 16-second flow regulating valve, a 17-second flow meter and a 18-pressure sensor.
Description of the embodiments
Embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
Referring to fig. 1 and 2, the tandem reverse osmosis membrane water treatment device in the embodiment of the application comprises a stock solution tank 1 and a tandem reverse osmosis membrane assembly 2, wherein the tandem reverse osmosis membrane assembly 2 comprises a pressure-resistant shell 3, a plurality of reverse osmosis membrane filter core units 4 are axially connected in series in the pressure-resistant shell 3, and a stock solution inlet 5, a concentrated solution outlet 6 and a pure water outlet 7 are formed in the pressure-resistant shell 3. A stock solution inlet pipeline 8 is arranged between the stock solution tank 1 and the stock solution inlet 5, and a driving pump 9, a one-way valve 10, a second flowmeter and a pressure sensor are arranged on the stock solution inlet pipeline 8. The concentrated solution outlet 6 is connected with a concentrated solution outlet main pipeline 11, and a first flow regulating valve 14 is arranged on the concentrated solution outlet main pipeline 11. The end of the concentrated solution outlet main pipeline 11 is provided with a concentrated solution discharge branch pipeline 12 and a two-way branch pipeline of a concentrated solution backflow branch pipeline 13, the concentrated solution backflow branch pipeline 13 is communicated with the stock solution inlet pipeline 8, the concentrated solution discharge branch pipeline 12 is provided with a first flowmeter 15, and the concentrated solution backflow branch pipeline 13 is provided with a second flow regulating valve 16.
The reverse osmosis membrane filter core unit 4 comprises a core tube 41, the pipe orifices at the two ends of the core tube 41 are respectively provided with an input end serial connection port 42 and an output end serial connection port 43, a plurality of liquid seepage holes 44 are formed in the pipe wall of the core tube 41, a reverse osmosis membrane body is spirally wound outside the core tube 41, and specifically, the reverse osmosis membrane body is formed by laminating and thermally integrating a plurality of warp knitting net fiber reinforced support outer layers 45 and a stripping-resistant reverse osmosis composite membrane 46. Further, the anti-peeling type reverse osmosis composite membrane 46 comprises a polyethersulfone hydrophobic porous membrane layer 461, a crosslinked polyamide porous membrane supporting layer 462 and a crosslinked aromatic polyamide reverse osmosis membrane layer 463 which are integrally laminated together by heat sealing, preferably, the polyethersulfone hydrophobic porous membrane layer 461 has a thickness of 15 micrometers to 100 micrometers, the crosslinked polyamide porous membrane supporting layer 462 has a thickness of 20 micrometers to 250 micrometers, and the crosslinked aromatic polyamide reverse osmosis membrane layer 463 has a thickness of 50 nanometers to 450 nanometers. The warp knitted net fiber reinforced support outer layer 45 preferably has a thickness of 0.1 mm to 1.2 mm.
The foregoing is merely a part of examples and embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any person skilled in the art who is familiar with the present utility model can easily think about changes or substitutions within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. The serial reverse osmosis membrane water treatment device is characterized in that: including stoste basin (1) and tandem type reverse osmosis membrane module (2), tandem type reverse osmosis membrane module (2) are including pressure-resistant casing (3), it has a plurality of reverse osmosis membrane filter core units (4) to establish ties in pressure-resistant casing (3) in the axle, reverse osmosis membrane filter core unit (4) are including core pipe (41), the both ends mouth of pipe of core pipe (41) is equipped with input serial connection (42) and output serial connection (43) respectively, a plurality of oozing liquid hole (44) have been seted up on core pipe (41) pipe wall, core pipe (41) outside spiral winding has reverse osmosis membrane body, stock solution import (5), concentrate export (6) and pure water export (7) have been seted up on pressure-resistant casing (3), stock solution basin (1) with be provided with stoste feed-in pipeline (8) between stock solution import (5), drive pump (9) and check valve (10) have been set gradually along the feed-in the feed-through direction on stock solution feed-through pipeline (8), concentrate export (6) are connected with concentrate main liquor main pipeline (11), concentrate branch road (11) and concentrate end branch road (13) are formed, concentrate feed-through pipeline (13) are concentrated solution feed-through.
2. The tandem reverse osmosis membrane water treatment apparatus according to claim 1, characterized in that: the reverse osmosis membrane body is formed by laminating and thermally integrating a plurality of warp knitting net fiber reinforced support outer layers (45) and a stripping-resistant reverse osmosis composite membrane (46).
3. The tandem reverse osmosis membrane water treatment apparatus according to claim 2, characterized in that: the peel-resistant reverse osmosis composite membrane (46) comprises a polyethersulfone hydrophobic porous membrane layer (461), a crosslinked polyamide porous membrane supporting layer (462) and a crosslinked aromatic polyamide reverse osmosis membrane layer (463) which are laminated together and integrated by heat sealing.
4. A tandem reverse osmosis membrane water treatment device according to claim 3, characterized in that: the polyethersulfone hydrophobic porous membrane layer (461) has a thickness of 15 micrometers to 100 micrometers.
5. A tandem reverse osmosis membrane water treatment device according to claim 3, characterized in that: the crosslinked polyamide porous membrane support layer (462) has a thickness of 20 microns to 250 microns.
6. A tandem reverse osmosis membrane water treatment device according to claim 3, characterized in that: the crosslinked aromatic polyamide reverse osmosis membrane layer (463) has a thickness of 50nm to 450 nm.
7. The tandem reverse osmosis membrane water treatment apparatus according to claim 2, characterized in that: the warp knitted net fiber reinforced support outer layer (45) has a thickness of 0.1 mm to 1.2 mm.
8. The tandem reverse osmosis membrane water treatment apparatus according to claim 1, characterized in that: a first flow regulating valve (14) is arranged on the concentrated liquid outlet main pipeline (11).
9. The tandem reverse osmosis membrane water treatment apparatus according to claim 1, characterized in that: the concentrated solution discharging branch (12) is provided with a first flowmeter (15), and the concentrated solution reflux branch (13) is provided with a second flow regulating valve (16).
10. The tandem reverse osmosis membrane water treatment apparatus according to claim 1, characterized in that: the stock solution inlet pipeline (8) is provided with a second flowmeter (17) and a pressure sensor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648529.1U CN221027848U (en) | 2023-09-28 | 2023-09-28 | Tandem reverse osmosis membrane water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648529.1U CN221027848U (en) | 2023-09-28 | 2023-09-28 | Tandem reverse osmosis membrane water treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221027848U true CN221027848U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322648529.1U Active CN221027848U (en) | 2023-09-28 | 2023-09-28 | Tandem reverse osmosis membrane water treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221027848U (en) |
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2023
- 2023-09-28 CN CN202322648529.1U patent/CN221027848U/en active Active
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