CN220176536U - Spiral-flow type reverse osmosis membrane integrated device - Google Patents
Spiral-flow type reverse osmosis membrane integrated device Download PDFInfo
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- CN220176536U CN220176536U CN202320972470.9U CN202320972470U CN220176536U CN 220176536 U CN220176536 U CN 220176536U CN 202320972470 U CN202320972470 U CN 202320972470U CN 220176536 U CN220176536 U CN 220176536U
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- 239000012528 membrane Substances 0.000 title claims abstract description 205
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 135
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 160
- 238000001914 filtration Methods 0.000 claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 230000010354 integration Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 230000003373 anti-fouling effect Effects 0.000 description 5
- 238000007373 indentation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 238000009285 membrane fouling Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000010287 polarization Effects 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 241000196171 Hydrodictyon reticulatum Species 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
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- 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 relates to a spiral-flow type reverse osmosis membrane integrated device, belongs to the technical field of reverse osmosis water treatment, and solves the problems that an existing reverse osmosis device is low in water treatment efficiency, easy to block due to reverse osmosis membrane and high in requirement on inflow water quality. The device comprises a plurality of cyclone reverse osmosis membrane components which are communicated; the spiral-flow type reverse osmosis membrane assembly comprises a shell, a plurality of filtering membrane bags, a diversion grid and a central water production pipe, wherein the filtering membrane bags, the diversion grid and the central water production pipe are arranged in the shell; the flow guide grid comprises a spiral piece and a turbulent piece which are arranged around the surface of the filtering membrane bag; the turbulence pieces are circumferentially arranged around the filtering membrane bag, and a plurality of turbulence pieces are axially parallel to the filtering membrane bag and uniformly distributed along the filtering membrane bag; the spiral pieces are arranged around the outer surface of the filtering membrane bag and form an included angle with the turbulence piece, a plurality of spiral pieces are distributed in parallel and uniformly along the circumference of the filtering membrane bag, and a spiral water inlet flow channel is formed between every two adjacent spiral pieces; the spoiler is erected on one side of the spiral piece far away from the filtering membrane bag. The device has high efficiency, is not easy to be blocked, and has low requirement on water quality.
Description
Technical Field
The utility model relates to the technical field of reverse osmosis water treatment, in particular to a spiral-flow type reverse osmosis membrane integrated device.
Background
Reverse osmosis is a reverse migration motion of osmosis, a separation method that separates solutes in solution from solvent by means of selective entrapment by a semipermeable membrane under pressure driving.
Existing reverse osmosis units typically include a reverse osmosis module, which results in a lower water treatment efficiency of the reverse osmosis unit.
In addition, the reverse osmosis component in the existing reverse osmosis device generally comprises a shell, a filter membrane bag, a flow guide grid and a central water production pipe, raw water is reverse-osmosis through the filter membrane bag under the flow guide effect of the flow guide grid, pure water enters the filter membrane bag and is discharged through the central water production pipe, and concentrated water is discharged outside the filter membrane bag through a concentrated water outlet of the component. The existing reverse osmosis device is easy to be blocked by reverse osmosis membrane, and has higher requirement on the quality of inlet water.
Disclosure of Invention
In view of the above analysis, the present utility model aims to provide a spiral-flow type reverse osmosis membrane integrated device for solving at least one of the following problems: the existing reverse osmosis device has low water treatment efficiency; (2) The existing reverse osmosis device is easy to generate reverse osmosis membrane fouling and blocking; (3) The existing reverse osmosis membrane component has higher requirement on the quality of the inlet water.
The aim of the utility model is mainly realized by the following technical scheme:
the utility model provides a rotational flow type reverse osmosis membrane integrated device, which comprises a plurality of rotational flow type reverse osmosis membrane components which are communicated;
the spiral-flow type reverse osmosis membrane assembly comprises a shell, a plurality of filtering membrane bags, a diversion grid and a central water production pipe, wherein the filtering membrane bags, the diversion grid and the central water production pipe are arranged in the shell;
the central water producing pipe and the shell are coaxially arranged, and a plurality of through holes are formed in the central water producing pipe;
each filtering membrane bag comprises two reverse osmosis membranes, three sides of the two reverse osmosis membranes are sealed to form a bag shape with one side open, the open side of each filtering membrane bag is connected with the central water production pipe, and the filtering membrane bags are wound around the central water production pipe; a diversion grid is arranged between two adjacent filtering membrane bags;
the flow guide grid comprises a spiral piece and a turbulent piece which are arranged around the surface of the filtering membrane bag; the turbulence pieces are circumferentially arranged around the filtering membrane bag, and a plurality of turbulence pieces are axially parallel to the filtering membrane bag and uniformly distributed along the filtering membrane bag; the spiral piece surrounds the outer surface of the filtering membrane bag and forms an included angle with the turbulence piece, a plurality of spiral pieces are distributed in parallel and uniformly along the circumference of the filtering membrane bag, and a spiral water inlet flow channel is formed between every two adjacent spiral pieces; the turbulence piece is erected on one side of the spiral piece far away from the filtering membrane bag.
Preferably, the spiral-flow type reverse osmosis membrane assembly further comprises a raw water inlet, the spiral-flow type reverse osmosis membrane integrated device further comprises a main water inlet pipe, and the raw water inlets of the spiral-flow type reverse osmosis membrane assembly are connected in series and then communicated with the main water inlet pipe.
Preferably, the spiral-flow type reverse osmosis membrane assembly further comprises a pure water outlet, and the pure water outlet is communicated with the central water production pipe; the spiral-flow type reverse osmosis membrane integrated device further comprises a main water production pipeline, and the pure water outlets of the spiral-flow type reverse osmosis membrane assemblies are communicated with the main water production pipeline.
Preferably, the spiral-flow type reverse osmosis membrane assembly further comprises a concentrated water outlet, the spiral-flow type reverse osmosis membrane integrated device further comprises a concentrated water main pipeline, and the concentrated water outlets of the spiral-flow type reverse osmosis membrane assembly are communicated with the concentrated water main pipeline.
Preferably, a plurality of the spiral-flow type reverse osmosis membrane modules are arranged in a 13×6 manner.
Preferably, two layers of the flow guide grids are arranged between two adjacent filtering membrane bags, and spiral pieces in each layer of the flow guide grids are respectively contacted with the surfaces of the adjacent filtering membrane bags.
Preferably, the two layers of the flow guiding grids are correspondingly arranged according to the direction of the water inlet flow channel.
Preferably, the spiral and the spoiler in the grid are interconnected in the overlapping region of the two.
Preferably, the cross sections of the spiral piece and the turbulence piece are circular.
Preferably, the cross-sectional area of the spiral is greater than the cross-sectional area of the spoiler.
Compared with the prior art, the utility model has at least one of the following beneficial effects:
1. the rotational flow type reverse osmosis membrane integrated device integrates a plurality of rotational flow type reverse osmosis membrane components into a whole device, and improves the water treatment efficiency.
2. In the cyclone type reverse osmosis membrane integrated device, the turbulence piece of the cyclone type reverse osmosis membrane assembly is erected on the spiral piece, so that the effective membrane area of the membrane is increased, the water treatment efficiency is improved, meanwhile, the indentation of the water inlet flow channel on the surface of the reverse osmosis membrane can be reduced, and the reticular indentation can not appear on the surface of the reverse osmosis membrane. The spiral pieces are skeleton lines, and a water flow channel with a spiral structure is formed between the spiral pieces, so that the inflow water generates centrifugal force, the scouring of the surface of the membrane is enhanced, and the anti-fouling performance is improved; in addition, the turbulence piece has the effect of disturbing liquid when the inflow water flows, turbulence can be generated on the surface of the reverse osmosis membrane, and meanwhile, the spiral piece can provide the turbulence promotion effect, so that concentration polarization phenomenon on the surface of the reverse osmosis membrane is reduced, and the possibility of membrane fouling is reduced; the spiral piece forms an open type intercommunicated spiral water inlet channel, so that the water flow channel is increased, the water inlet running resistance is reduced, and the membrane has better anti-pollution performance.
3. The quality requirements of the existing reverse osmosis device on the quality of the inlet water are as follows: the sludge density index SDI is less than 5, the inlet water SS is less than 5mg/L, the organic matter content COD is less than 60mg/L, and the inlet water ammonia nitrogen content is less than 10mg/L; the spiral-flow type reverse osmosis membrane integrated device has the following quality requirements on the quality of inlet water: the sludge density index SDI is less than 15, the inlet water SS is less than 200mg/L, the organic matter content COD is less than 30000mg/L, and the inlet water ammonia nitrogen content is less than 4000mg/L. Therefore, the spiral-flow type reverse osmosis membrane integrated device has lower quality requirement on the quality of the inflow water.
In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic illustration of a cyclonic reverse osmosis membrane integrated apparatus of the present utility model;
FIG. 2 is a schematic diagram of a spiral-flow reverse osmosis membrane module according to the present utility model;
FIG. 3 is a schematic view of a flow-directing mesh and filtration membrane bag of the present utility model;
fig. 4 is a schematic plan-view expanded structure of the flow-guiding grid of the present utility model.
Reference numerals:
1-a filtering membrane bag; 2-a diversion grid; 201-a screw; 202-spoilers; 3-a central water producing pipe; 4-a fresh water net; 5-raw water inlet; 6-a concentrated water outlet; 7-a pure water outlet; 8-a main water inlet pipeline; 9-a main concentrated water pipeline.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
Existing reverse osmosis units typically include a reverse osmosis module that is inefficient in water treatment; the diversion grid in the existing reverse osmosis device is formed by weaving weft and radial polypropylene fibers on the same plane, so that both weft and warp can be stuck to the surface of the same reverse osmosis membrane when the membrane element is rolled, the effective membrane area of the membrane is occupied, and grid-shaped indentations can be pressed on the surface of the reverse osmosis membrane for a long time. Meanwhile, the weft threads and the warp threads on the same plane are pressed on the surface of the reverse osmosis membrane, a large-area water flow dead angle area can be generated in the water inlet process, and then pollutants are deposited, especially under the conditions of poor raw water quality such as higher salt content, higher suspended solids or turbidity, high COD content and the like of the inlet water, the pollutants and the scales are easily attached to the surfaces of the membrane and the grid, so that the membrane elements are blocked, and in order to prevent the membrane from being blocked, the existing reverse osmosis device has higher requirement on the water quality of the inlet water.
Thus, one embodiment of the present utility model provides a spiral-flow type reverse osmosis membrane integration apparatus, as shown in fig. 1, which includes a plurality of spiral-flow type reverse osmosis membrane modules disposed in communication;
as shown in fig. 2, the spiral-flow type reverse osmosis membrane module comprises a housing (not shown in fig. 2), a plurality of filtering membrane bags 1, a diversion grid 2 and a central water production pipe 3 which are arranged in the housing;
the central water production pipe 3 and the shell are coaxially arranged, and a plurality of through holes are formed in the central water production pipe 3;
each filtering membrane bag 1 comprises two reverse osmosis membranes, three sides of the two reverse osmosis membranes are sealed to form a bag shape with one side open, the open side of the filtering membrane bag 1 is connected with the central water production pipe 3, and the filtering membrane bag 1 is wound around the central water production pipe 3; a diversion grid 2 is arranged between two adjacent filtering membrane bags 1;
the flow guiding grid 2 comprises a spiral piece 201 and a turbulent piece 202 which are arranged around the surface of the filtering membrane bag 1; the turbulence pieces 202 are circumferentially arranged around the filtering membrane bag 1, and a plurality of the turbulence pieces 202 are axially parallel and uniformly distributed along the filtering membrane bag 1; the spiral piece 201 surrounds the outer surface of the filtering membrane bag 1 and forms an included angle with the turbulence piece 202, a plurality of spiral pieces 201 are distributed in parallel and uniformly along the circumferential direction of the filtering membrane bag 1, and a spiral water inlet flow channel is formed between adjacent spiral pieces 201; the spoiler 202 is mounted on the side of the spiral 201 facing away from the filter membrane bag 1.
Compared with the prior art, the rotational flow type reverse osmosis membrane integrated device integrates a plurality of rotational flow type reverse osmosis membrane components into a whole device, so that the water treatment efficiency is improved; in the cyclone reverse osmosis membrane integrated device, the turbulence piece is erected on the spiral piece, so that the effective membrane area of the membrane is increased, the water treatment efficiency is improved, meanwhile, the indentation of the water inlet flow channel on the surface of the reverse osmosis membrane can be reduced, and the reticular indentation on the surface of the reverse osmosis membrane can not be generated. The spiral pieces are skeleton lines, and a water flow channel with a spiral structure is formed between the spiral pieces, so that the inflow water generates centrifugal force, the scouring of the surface of the membrane is enhanced, and the anti-fouling performance is improved; in addition, the turbulence piece has the effect of disturbing liquid when the inflow water flows, turbulence can be generated on the surface of the reverse osmosis membrane, and meanwhile, the spiral piece can provide the turbulence promotion effect, so that concentration polarization phenomenon on the surface of the reverse osmosis membrane is reduced, and the possibility of membrane fouling is reduced; the spiral piece forms an open type intercommunicated spiral water inlet channel, so that the water flow channel is increased, the water inlet running resistance is reduced, and the membrane has better anti-pollution performance; the quality requirements of the existing reverse osmosis device on the quality of the inlet water are as follows: the sludge density index SDI is less than 5, the inlet water SS is less than 5mg/L, the organic matter content COD is less than 60mg/L, and the inlet water ammonia nitrogen content is less than 10mg/L; the spiral-flow type reverse osmosis membrane integrated device has the following quality requirements on the quality of inlet water: the sludge density index SDI is less than 15, the inlet water SS is less than 200mg/L, the organic matter content COD is less than 30000mg/L, and the inlet water ammonia nitrogen content is less than 4000mg/L. Therefore, the spiral-flow type reverse osmosis membrane integrated device has lower quality requirement on the quality of the inflow water.
In the utility model, a plurality of spiral-flow type reverse osmosis membrane components can be respectively communicated with each other through the water inlet structure and the water outlet structure.
Specifically, the spiral-flow type reverse osmosis membrane component further comprises a raw water inlet 5, the spiral-flow type reverse osmosis membrane integrated device further comprises a main water inlet pipe 8, and the raw water inlets 5 of the spiral-flow type reverse osmosis membrane component are connected in series and then are communicated with the main water inlet pipe 8.
Illustratively, the raw water inlet 5 is provided at one end of the spiral-flow type reverse osmosis membrane module.
Illustratively, the spiral-flow type reverse osmosis membrane assembly further comprises a pure water outlet 7, wherein the pure water outlet 7 is communicated with the central water production pipe 3; the rotational flow type reverse osmosis membrane integrated device further comprises a main water production pipeline (not shown in fig. 1), and a plurality of pure water outlets 7 of the rotational flow type reverse osmosis membrane assemblies are communicated with the main water production pipeline.
Illustratively, the purified water outlet 7 is provided at an end of the spiral-flow type reverse osmosis membrane module opposite to the raw water inlet 5.
Illustratively, the spiral-flow type reverse osmosis membrane component further comprises a concentrated water outlet 6, the spiral-flow type reverse osmosis membrane integrated device further comprises a concentrated water main pipeline 9, and a plurality of concentrated water outlets 6 of the spiral-flow type reverse osmosis membrane component are communicated with the concentrated water main pipeline 9.
Illustratively, the concentrate outlet 6 is provided at an end or side of the cyclonic reverse osmosis membrane module.
In the present utility model, in order to improve the water treatment efficiency, the spiral-flow type reverse osmosis membrane integrated device includes 70 to 100 spiral-flow type reverse osmosis membrane modules, and the arrangement mode of the spiral-flow type reverse osmosis membrane is not particularly limited. For example, the spiral-flow type reverse osmosis membrane integrated device comprises 78 spiral-flow type reverse osmosis membrane components, a plurality of the spiral-flow type reverse osmosis membrane components are arranged in a 13×6 way, and can be arranged into two 13×3 arrays, as shown in fig. 1, each row of 13 spiral-flow type reverse osmosis membrane components are connected in series and then are communicated with the main water inlet pipe 8, and in the 13×3 arrays, the concentrated water outlets 6 of each row of 3 spiral-flow type reverse osmosis membrane components are connected in series and then are communicated with the main concentrated water pipe 9; the pure water outlets 7 of each row of 3 spiral-flow type reverse osmosis membrane modules are connected in series and then communicated with a main water production pipeline.
In view of structural stability of the spiral-flow type reverse osmosis membrane integration apparatus, it is preferable that the spiral-flow type reverse osmosis membrane integration apparatus further comprises a bracket for supporting the spiral-flow type reverse osmosis membrane module and the respective pipes. The support comprises a support base and a pipeline support, wherein the support base is used for a spiral-flow type reverse osmosis membrane assembly, and the pipeline support is used for supporting each main pipeline.
In one embodiment, as shown in fig. 4 (only two layers of flow guiding grids are shown in fig. 4, and the filter membrane bags are not shown), two layers of flow guiding grids 2 are arranged between two adjacent filter membrane bags 1, and spiral pieces 201 in each layer of flow guiding grids 2 are respectively contacted with the surfaces of the adjacent filter membrane bags 1. In this embodiment, two opposite surfaces of two adjacent filtering membrane bags 1 respectively correspond to the corresponding flow guiding grids 2, only the spiral piece 201 is in contact with the surface of the reverse osmosis membrane, the flow disturbing piece is erected on the spiral piece, the effective membrane area of the membrane is increased, the flow guiding between the adjacent filtering membrane bags 1 is improved, the water treatment efficiency is improved, and meanwhile, each filtering membrane bag 1 is provided with a respective flow disturbing piece 202, and the anti-fouling performance of the membrane is improved.
Fig. 4 is a plan view showing a diversion grid between two layers of reverse osmosis membranes, in which two layers of diversion grids are provided in fig. 4, and spiral members 201 in each layer of diversion grid are respectively in contact with the reverse osmosis membranes adjacent to each other.
Specifically, in the plan expanded view shown in fig. 4, the plane expanded view includes a plurality of turbulence members 202 disposed horizontally, and a plurality of spiral members 201 intersecting the turbulence members 202 and forming an angle with the turbulence members 202, in the plan view, the spiral members 201 are straight oblique lines intersecting the turbulence members 202 and forming an angle with the horizontal direction, when the expanded structure shown in fig. 4 is overlapped with the filtration membrane bag 1, one side (the open end of the membrane bag) of the overlapped structure is connected with the central water producing pipe 3, and the other opposite side is wound around the central water producing pipe 3, the plurality of straight oblique lines in fig. 4 form a plurality of spiral members, and the adjacent spiral members form water inlet channels of the spiral structure, as shown in fig. 3.
In the present utility model, "horizontal direction" refers to a horizontal direction corresponding to a vertical direction of the membrane module when the membrane module is placed, as shown in fig. 3.
In one embodiment, two layers of the diversion grids 2 are correspondingly arranged according to the direction of the water inlet flow channel. That is, the spiral members 201 and the turbulence members 202 of the two layers of the flow guiding grids 2 are correspondingly arranged, so that the spiral flow guiding effect of the spiral members 201 and the turbulence liquid effect of the turbulence members 202 can be further promoted.
In order to avoid the mutual adhesion of the two reverse osmosis membranes forming the filter membrane bag 1 and promote the pure water in the filter membrane bag 1 to enter the central water production pipe 3, a fresh water net 4 is arranged between the two reverse osmosis membranes forming the filter membrane bag 1.
The end of the central water producing pipe 3 far away from the pure water outlet 7 is a closed end.
Illustratively, the spiral 201 and the spoiler 202 are connected to each other in an overlapping region thereof, which is advantageous for improving structural stability of the three-dimensional flow guiding grid formed by the spiral 201 and the spoiler 202.
Illustratively, in the guide grid 2, the distance between adjacent spirals 201 is greater than the distance between adjacent turbulators 202. The turbulent flow of water inflow in the spiral flow channel can be further promoted, and the anti-fouling and blocking performance of the membrane is further improved.
Illustratively, the cross-sections of the spiral 201 and the spoiler 202 are both circular. The circular cross-sectional area is beneficial to reducing the water flow resistance.
Illustratively, the cross-sectional area of the spiral 201 is greater than the cross-sectional area of the spoiler 202. Not only is the support of the screw 201 to the turbulence member 202 facilitated, but also the disturbance of the liquid is facilitated to be increased.
Specifically, the cross-sectional dimensions of the spiral piece 201 and the turbulence piece 202 and the helix angle of the spiral piece 201 can be selectively adjusted according to reverse osmosis membrane components with different sizes and requirements.
Illustratively, the helix 201 is angled from the spoiler 202 by 30-60 degrees, such as 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, etc.
Illustratively, the distance between two adjacent spiral pieces 201 is 1.5-3mm, which can improve the uniformity of the reverse osmosis membrane for water treatment.
Illustratively, the distance between two adjacent turbulence pieces 202 is 1.0-2.0mm, which can generate uniform turbulence to the incoming water.
When the spiral-flow type reverse osmosis membrane integrated device is used for water treatment, raw water in the main water inlet pipeline 8 enters the shell of each spiral-flow type reverse osmosis membrane assembly through the raw water inlet 5 of each spiral-flow type reverse osmosis membrane assembly, the centrifugal force is generated by the water under the action of the spiral-structure flow channel of the diversion grid 2, the scouring of the membrane surface is enhanced, the anti-fouling performance is improved, the concentration polarization phenomenon of the membrane surface is reduced under the disturbance action of the turbulence piece 202 on liquid and the promotion action of the spiral piece 201 on turbulence, and the possibility of membrane fouling is reduced; pure water enters the filtering membrane belt 1 through the reverse osmosis action of the reverse osmosis membrane, enters the central water production pipe 3 through the through hole on the central water production pipe 3, and is discharged from the pure water outlet 7 to enter the main water production pipe; the concentrated water trapped outside the filtering membrane belt 1 is discharged from the concentrated water outlet 6 and enters the concentrated water main pipeline 9 to finish the water treatment process.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. The rotational flow type reverse osmosis membrane integration device is characterized by comprising a plurality of rotational flow type reverse osmosis membrane components which are communicated;
the spiral-flow type reverse osmosis membrane assembly comprises a shell, a plurality of filtering membrane bags (1), a diversion grid (2) and a central water production pipe (3), wherein the filtering membrane bags are arranged in the shell;
the central water producing pipe (3) and the shell are coaxially arranged, and a plurality of through holes are formed in the central water producing pipe (3);
each filtering membrane bag (1) comprises two reverse osmosis membranes, three sides of each reverse osmosis membrane are sealed to form a bag shape with one side open, the open side of each filtering membrane bag (1) is connected with the central water production pipe (3), and the filtering membrane bags (1) are wound around the central water production pipe (3); a diversion grid (2) is arranged between two adjacent filtering membrane bags (1);
the flow guide grid (2) comprises a spiral piece (201) and a turbulent piece (202) which are arranged around the surface of the filtering membrane bag (1); the turbulence pieces (202) are circumferentially arranged around the filtering membrane bag (1), and a plurality of turbulence pieces (202) are axially parallel and uniformly distributed along the filtering membrane bag (1); the spiral pieces (201) are arranged around the outer surface of the filtering membrane bag (1) and form an included angle with the turbulence piece (202), a plurality of spiral pieces (201) are distributed in parallel and uniformly along the circumferential direction of the filtering membrane bag (1), and a spiral water inlet flow channel is formed between every two adjacent spiral pieces (201); the turbulence piece (202) is erected on one side of the spiral piece (201) far away from the filtering membrane bag (1).
2. The spiral-flow type reverse osmosis membrane integration device according to claim 1, wherein the spiral-flow type reverse osmosis membrane assembly further comprises a raw water inlet (5), the spiral-flow type reverse osmosis membrane integration device further comprises a main water inlet pipe (8), and the raw water inlets (5) of the spiral-flow type reverse osmosis membrane assembly are connected in series and then are communicated with the main water inlet pipe (8).
3. The spiral-flow type reverse osmosis membrane integrated device according to claim 1, wherein the spiral-flow type reverse osmosis membrane module further comprises a pure water outlet (7), and the pure water outlet (7) is communicated with the central water production pipe (3);
the spiral-flow type reverse osmosis membrane integrated device further comprises a main water production pipeline, and a plurality of pure water outlets (7) of the spiral-flow type reverse osmosis membrane assemblies are communicated with the main water production pipeline.
4. The spiral-flow type reverse osmosis membrane integrated device according to claim 1, wherein the spiral-flow type reverse osmosis membrane assembly further comprises a concentrated water outlet (6), the spiral-flow type reverse osmosis membrane integrated device further comprises a concentrated water main pipe (9), and the concentrated water outlets (6) of the spiral-flow type reverse osmosis membrane assembly are communicated with the concentrated water main pipe (9).
5. The apparatus according to claim 1, wherein a plurality of the spiral-flow type reverse osmosis membrane modules are arranged in a 13 x 6 pattern.
6. The spiral-flow type reverse osmosis membrane integrated device according to claim 1, wherein two layers of the flow guiding grids (2) are arranged between two adjacent filtering membrane bags (1), and spiral pieces (201) in each layer of the flow guiding grids (2) are respectively contacted with the surfaces of the adjacent filtering membrane bags (1).
7. The spiral-flow type reverse osmosis membrane integrated device according to claim 6, wherein the two layers of the diversion grids (2) are correspondingly arranged according to the direction of the water inlet flow channel.
8. The spiral-flow type reverse osmosis membrane integrated apparatus according to claim 1, wherein the spiral member (201) and the turbulent member (202) in the diversion grid (2) are connected to each other in an overlapping region thereof.
9. The spiral-flow type reverse osmosis membrane integrated apparatus according to claim 1, wherein the cross sections of the spiral member (201) and the turbulent member (202) are circular.
10. The spiral-flow type reverse osmosis membrane integrated apparatus according to claim 9, wherein a cross-sectional area of the spiral member (201) is larger than a cross-sectional area of the flow disturbing member (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320972470.9U CN220176536U (en) | 2023-04-26 | 2023-04-26 | Spiral-flow type reverse osmosis membrane integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320972470.9U CN220176536U (en) | 2023-04-26 | 2023-04-26 | Spiral-flow type reverse osmosis membrane integrated device |
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| Publication Number | Publication Date |
|---|---|
| CN220176536U true CN220176536U (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320972470.9U Active CN220176536U (en) | 2023-04-26 | 2023-04-26 | Spiral-flow type reverse osmosis membrane integrated device |
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| Country | Link |
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