CN219792619U - RO membrane filter core using carbon fiber membrane - Google Patents
RO membrane filter core using carbon fiber membrane Download PDFInfo
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- CN219792619U CN219792619U CN202321239663.XU CN202321239663U CN219792619U CN 219792619 U CN219792619 U CN 219792619U CN 202321239663 U CN202321239663 U CN 202321239663U CN 219792619 U CN219792619 U CN 219792619U
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- membrane
- carbon fiber
- central tube
- cotton
- water
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- 239000012528 membrane Substances 0.000 title claims abstract description 213
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 102
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 102
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000001914 filtration Methods 0.000 claims abstract description 63
- 229920000742 Cotton Polymers 0.000 claims abstract description 48
- 238000004804 winding Methods 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 239000008213 purified water Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000001223 reverse osmosis Methods 0.000 description 51
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses an RO membrane filter element using a carbon fiber membrane, which comprises a top cover, a base, a filter membrane roll and a central tube; the filter membrane roll comprises a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane, a rear PP cotton filter membrane and a sealing membrane; the central tube is provided with a plurality of water inlets; the rear PP cotton filtering membrane, the rear carbon fiber membrane, the RO membrane and the front composite carbon fiber membrane are sequentially wound on the periphery of the central tube from inside to outside; the water inlets are distributed at intervals and penetrate through the sealing film; the sealing film wraps the outer peripheral surface of the winding layer of the front composite carbon fiber film; the middle part of the top cover is provided with a water outlet pipe, and a water drainage channel is formed between the inner wall of the water outlet pipe and the outer wall of the central pipe. The filtering membrane roll comprises a rear PP cotton filtering layer, a rear carbon fiber membrane filtering layer, an RO membrane filtering layer and a front carbon fiber filtering layer, a water collecting cavity is not required to be arranged between two adjacent filtering layers, the structure is compact, deposited scale can be prevented from being generated in the filter element, and the service life of the filter element is prevented from being shortened.
Description
Technical Field
The utility model relates to the technical field of filter elements for purifying water, in particular to an RO (reverse osmosis) membrane filter element using a carbon fiber membrane.
Background
In order to ensure the purity of purified water, the water purifying device in the prior art adopts a plurality of filter elements to filter out particles, floccules and heavy metals and organic matters dissolved in water in the water to be purified, and the initial filtering end and the filtering end of each filter element are respectively provided with a water collecting cavity, so that a plurality of filter elements occupy a larger space.
After a period of use, the water collecting cavity in the filter element is easy to deposit scale, so that the filtering efficiency of the filter element is poor, and therefore, a plurality of filter elements in the water purifying device need to be replaced one by one, the service life of the filter element is shortened, and the use cost of the water purifying device is increased.
Disclosure of Invention
The utility model aims to solve the problems, and provides an RO membrane filter core with a four-stage filtering function, which is formed by winding a carbon fiber membrane filter membrane, wherein the filter core does not need to be provided with a water collecting cavity.
To achieve the purpose, the utility model adopts the following technical scheme:
an RO membrane filter core using a carbon fiber membrane comprises a top cover, a base, a filter membrane roll and a central tube;
the filter membrane roll comprises a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane, a rear PP cotton filter membrane and a sealing membrane;
the hollow central tube extends along the axial direction, a plurality of water inlets are formed in the central tube, and the water inlets are distributed at intervals and penetrate through the wall of the central tube;
the rear PP cotton filtering membrane, the rear carbon fiber membrane, the RO membrane and the front composite carbon fiber membrane are sequentially wound on the periphery of the central tube from inside to outside, and the rear PP cotton filtering membrane covers all the water inlet holes;
the sealing film is provided with a plurality of water inlets which are distributed at intervals and penetrate through the sealing film; the sealing film is wrapped on the outer peripheral surface of the winding layer of the front composite carbon fiber film, and part of the front composite carbon fiber film is exposed out of the water inlet hole;
the top cover is sleeved on the periphery of the central tube, and covers and wraps the top of the filtering membrane roll; the base covers and seals the bottom surface of the filter membrane roll and the bottom surface of the central tube;
a water outlet pipe protruding upwards is arranged in the middle of the top cover, a water outlet channel is formed between the inner wall of the water outlet pipe and the outer wall of the central pipe, and the water outlet channel is communicated with the top surface of the wound RO membrane so as to output concentrated water outwards; the top end of the central tube is communicated with the outside and outputs purified water.
Further, a water guiding cloth is arranged between the winding film layers of the adjacent two RO films.
Furthermore, the central tube is also sleeved with a limiting ring;
the top end of the central tube is exposed out of the top of the water outlet pipe;
the inner peripheral surface of the limiting ring is propped against the outer peripheral surface of the central tube, and the bottom surface of the limiting ring is close to the top surface of the winding layer of the rear PP cotton filtering membrane.
Specifically, the winding layer of the rear PP cotton filtering membrane comprises an inner winding part, an upward protruding part and a downward protruding part;
the inner winding part is a rear PP cotton filter membrane winding layer which is tightly wound on the central tube and is positioned in the winding layer of the rear carbon fiber membrane;
the upper protruding part is a rear PP cotton filter membrane winding layer which is wound on the periphery of the inner winding part and covers the top surface of the rear carbon fiber membrane winding layer;
and the lower protruding part is wound on the periphery of the inner winding part and covers the rear PP cotton filter membrane winding layer on the bottom surface of the rear carbon fiber membrane winding layer.
Further, the top surface of the winding layer of the rear PP cotton filtering membrane is coated with sealant.
Further, the bottom end of the central tube is a closed end.
Preferably, the front composite carbon fiber membrane is a composite membrane comprising PP cotton and PAC carbon fibers;
the post carbon fiber membrane is a PAC carbon fiber membrane.
The technical scheme of the utility model has the beneficial effects that: according to the RO membrane filter core using the carbon fiber membrane, the adopted filter membrane roll comprises the rear PP cotton filter membrane, the rear carbon fiber membrane, the RO membrane and the front composite carbon fiber membrane which are sequentially wound on the periphery of the central tube from inside to outside, so that the filter membrane roll respectively forms the rear PP cotton filter layer, the rear carbon fiber membrane filter layer, the RO membrane filter layer and the front carbon fiber filter layer which are distributed from inside to outside, and a water collecting cavity is not required to be arranged between two adjacent filter layers, so that the whole structure is more compact, deposited scale generated inside the filter core due to the water collecting cavity in the use process is avoided, and the service life of the filter core is further prevented from being shortened.
Drawings
FIG. 1 is a schematic cross-sectional view of one embodiment of an RO membrane cartridge of the present utility model using carbon fiber membranes;
FIG. 2 is a schematic three-dimensional structure of an RO membrane cartridge using a carbon fiber membrane of the present utility model;
wherein: a top cover 1; a base 2; a filter membrane roll 3; a central tube 4; a water outlet pipe 11; a stop collar 12; a sealing film 31; a pre-composite carbon fiber film 32; RO membrane 33; a post carbon fiber membrane 34; a rear PP cotton filtration membrane 35; a water inlet hole 41; a drainage channel 111; a water inlet hole 311; an inner wrap portion 351; an upper protrusion 352; a lower protrusion 353.
Detailed Description
The technical scheme of the utility model is further described below by means of specific embodiments in combination with the accompanying drawings 1-2.
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present utility model.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
An RO membrane filter core using a carbon fiber membrane comprises a top cover 1, a base 2, a filter membrane roll 3 and a central tube 4;
the filtering membrane roll 3 comprises a front composite carbon fiber membrane 32, an RO membrane 33, a rear carbon fiber membrane 34, a rear PP cotton filtering membrane 35 and a sealing membrane 31;
the hollow central tube 4 extends along the axial direction, the central tube 4 is provided with a plurality of water inlets 41, and the water inlets 41 are distributed at intervals and penetrate through the wall of the central tube 4;
the rear PP cotton filtering membrane 35, the rear carbon fiber membrane 34, the RO membrane 33 and the front composite carbon fiber membrane 32 are sequentially wound around the periphery of the central tube 4 from inside to outside, and the rear PP cotton filtering membrane 35 covers all the water inlet holes 41;
the sealing film 31 is provided with a plurality of water inlets 311, and the water inlets 311 are distributed at intervals and penetrate through the sealing film 31; the sealing film 31 wraps the outer peripheral surface of the winding layer of the front composite carbon fiber film 32, and part of the front composite carbon fiber film 32 is exposed out of the water inlet hole 311;
the top cover 1 is sleeved on the periphery of the central tube 4, and the top cover 1 covers and wraps the top of the filtering membrane roll 3; the base 2 covers and seals the bottom surface of the filter membrane roll 3 and the bottom surface of the central tube 4;
a water outlet pipe 11 protruding upwards is arranged in the middle of the top cover 1, a water outlet channel 111 is formed between the inner wall of the water outlet pipe 11 and the outer wall of the central pipe 4, and the water outlet channel 111 is communicated with the top surface of the wound RO membrane 33 so as to output concentrated water outwards; the top end of the central tube 4 is communicated with the outside and outputs purified water.
As shown in fig. 1-2, the RO membrane filter core using carbon fiber membranes according to the present utility model adopts a filter membrane roll 3 comprising a rear PP cotton filter membrane 35, a rear carbon fiber membrane 34, an RO membrane 33 and a front composite carbon fiber membrane 32 which are sequentially wound around the periphery of the central tube 4 from inside to outside, and the filter membrane roll 3 thus forms a rear PP cotton filter layer, a rear carbon fiber membrane filter layer, an RO membrane filter layer and a front carbon fiber filter layer which are distributed from inside to outside, respectively, and a water collecting cavity is not required between two adjacent filter layers, so that the overall structure is more compact, and scale deposited inside the filter core due to the water collecting cavity in the use process is avoided, thereby shortening the service life of the filter core.
Secondly, to-be-purified water enters the filtering membrane roll 3 from the water inlet hole 311, is purified into purified water after being sequentially filtered by the front carbon fiber filtering layer, the RO membrane filtering layer, the rear carbon fiber filtering layer and the rear PP cotton filtering layer, the purified water is output outwards from the top end of the central tube 4, and the concentrated water formed by the RO membrane 33 in the filtering process is discharged from the water discharge channel 111 positioned at the top end of the RO membrane filtering layer, so that the improvement of the filtering efficiency of the RO membrane 33 is facilitated because the concentrated water can be discharged in time in the filtering process.
Furthermore, the plurality of water inlet holes 311 are distributed on the outer circumferential surface of the RO membrane filter core using the carbon fiber membrane, and have a larger surface area in contact with water to be purified, so that the RO membrane filter core using the carbon fiber membrane can adapt to a larger water inlet pressure, and therefore, the RO membrane filter core using the carbon fiber membrane has better filtration efficiency.
In addition, the periphery of the RO membrane filter layer is tightly wrapped by the preposed carbon fiber filter layer, so that the RO membrane 33 in the RO membrane filter layer has good pressure resistance and service life.
Further, a water guiding cloth is arranged between the winding film layers of the adjacent two RO films 33.
The use of the water guiding cloth can improve the fluidity of the water to be purified between the wound membrane layers of the adjacent two RO membranes 33, thereby further improving the filtration efficiency of the RO membrane cartridge using the carbon fiber membrane.
Furthermore, the central tube 4 is also sleeved with a limiting ring 12;
the top end of the central tube 4 is exposed out of the top of the water outlet tube 11;
the inner circumferential surface of the limiting ring 12 abuts against the outer circumferential surface of the central tube 4, and the bottom surface of the limiting ring 12 is close to the top surface of the winding layer of the rear PP cotton filtering membrane 35.
As shown in fig. 1, the limiting ring 12 is arranged to limit the top edge of the wound post PP cotton filtering membrane 35, so that the problem that the assembly size of the RO membrane filter element using the carbon fiber membrane is affected due to the fact that the length of the top end of the central tube 4 exposed at the top of the water outlet pipe 11 is too small is avoided, and the water leakage phenomenon of the water drainage channel 111 is avoided during use.
Specifically, the winding layer of the rear PP cotton filtering membrane 35 includes an inner winding portion 351, an upper protrusion portion 352 and a lower protrusion portion 353;
the inner winding part 351 is a rear PP cotton filter membrane winding layer which is wound close to the central tube 4 and is positioned in the winding layer of the rear carbon fiber membrane 34;
the upward protruding portion 352 is a rear PP cotton filter membrane wound layer wound around the outer periphery of the inner winding portion 351 and covering the top surface of the wound layer of the rear carbon fiber membrane 34;
the lower protrusion 353 is wound around the outer periphery of the inner winding portion 351 and covers the rear PP cotton filter membrane winding layer of the bottom surface of the winding layer of the rear carbon fiber membrane 34.
As shown in fig. 1, since the toughness of the carbon fiber membrane is poor, the winding layer of the rear PP cotton filter membrane 35 is divided into the inner winding portion 351, the upper protrusion 352 and the lower protrusion 353 to be wound, and the top and bottom surfaces of the rear carbon fiber membrane winding layer are covered by the rear PP cotton filter membrane winding layer of the upper protrusion 352 and the lower protrusion 353, so that the RO membrane cartridge using the carbon fiber membrane can be prevented from being damaged by friction during the process of assembling the RO membrane cartridge in the water purifying apparatus, thereby preventing the service life of the winding layer of the rear carbon fiber membrane 34 from being affected.
Further, the top surface of the winding layer of the rear PP cotton filter membrane 35 is coated with sealant.
As shown in fig. 1, the top surface of the winding layer of the rear PP cotton filtering membrane 35 is coated with a sealant, so that concentrated water in the drainage channel 111 can be prevented from penetrating into the central tube 4 through the top surface of the winding layer of the rear PP cotton filtering membrane 35, and the purified water in the central tube 4 is prevented from being polluted by the concentrated water.
Further, the bottom end of the central tube 4 is a closed end.
As shown in fig. 1, the bottom end of the central tube 4 is set to be a closed end, so that the water to be purified or the concentrated water can be prevented from penetrating from the bottom end of the central tube 4 to pollute the purified water in the central tube 4.
Preferably, the pre-composite carbon fiber film 32 is a composite film including PP cotton and PAC carbon fibers;
the post carbon fiber membrane 34 is a PAC carbon fiber membrane.
The front composite carbon fiber film 32 is a composite film formed by compounding PP cotton and PAC carbon fibers, and has better toughness and scale inhibition performance, so that the service life is longer.
The post-carbon fiber membrane 34, which is a PAC carbon fiber membrane, has scale inhibition properties, which is beneficial to prolonging the service life of the post-carbon fiber membrane 34.
In summary, as shown in fig. 1-2, in the embodiment of the RO membrane cartridge using carbon fiber membrane according to the present utility model, the filtering membrane roll 3 includes the rear PP cotton filtering membrane 35, the rear carbon fiber membrane 34, the RO membrane 33 and the front composite carbon fiber membrane 32 sequentially wound around the outer periphery of the central tube 4 from inside to outside, and the filtering membrane roll 3 forms the rear PP cotton filtering layer, the rear carbon fiber membrane filtering layer, the RO membrane filtering layer and the front carbon fiber filtering layer distributed from inside to outside respectively, so that no water collecting cavity is required between two adjacent filtering layers, which not only makes the overall structure more compact, but also avoids the scale deposited inside the cartridge due to the water collecting cavity during use, thereby avoiding shortening the service life of the cartridge.
Secondly, to-be-purified water enters the filtering membrane roll 3 from the water inlet hole 311, is purified into purified water after being sequentially filtered by the front carbon fiber filtering layer, the RO membrane filtering layer, the rear carbon fiber filtering layer and the rear PP cotton filtering layer, the purified water is output outwards from the top end of the central tube 4, and the concentrated water formed by the RO membrane 33 in the filtering process is discharged from the water discharge channel 111 positioned at the top end of the RO membrane filtering layer, so that the improvement of the filtering efficiency of the RO membrane 33 is facilitated because the concentrated water can be discharged in time in the filtering process.
Furthermore, the plurality of water inlet holes 311 are distributed on the outer circumferential surface of the RO membrane filter core using the carbon fiber membrane, and have a larger surface area in contact with water to be purified, so that the RO membrane filter core using the carbon fiber membrane can adapt to a larger water inlet pressure, and therefore, the RO membrane filter core using the carbon fiber membrane has better filtration efficiency.
In addition, the periphery of the RO membrane filter layer is tightly wrapped by the preposed carbon fiber filter layer, so that the RO membrane 33 in the RO membrane filter layer has good pressure resistance and service life.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (7)
1. An RO membrane filter element using a carbon fiber membrane is characterized by comprising a top cover, a base, a filter membrane roll and a central tube;
the filter membrane roll comprises a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane, a rear PP cotton filter membrane and a sealing membrane;
the hollow central tube extends along the axial direction, a plurality of water inlets are formed in the central tube, and the water inlets are distributed at intervals and penetrate through the wall of the central tube;
the rear PP cotton filtering membrane, the rear carbon fiber membrane, the RO membrane and the front composite carbon fiber membrane are sequentially wound on the periphery of the central tube from inside to outside, and the rear PP cotton filtering membrane covers all the water inlet holes;
the sealing film is provided with a plurality of water inlets which are distributed at intervals and penetrate through the sealing film; the sealing film is wrapped on the outer peripheral surface of the winding layer of the front composite carbon fiber film, and part of the front composite carbon fiber film is exposed out of the water inlet hole;
the top cover is sleeved on the periphery of the central tube, and covers and wraps the top of the filtering membrane roll; the base covers and seals the bottom surface of the filter membrane roll and the bottom surface of the central tube;
a water outlet pipe protruding upwards is arranged in the middle of the top cover, a water outlet channel is formed between the inner wall of the water outlet pipe and the outer wall of the central pipe, and the water outlet channel is communicated with the top surface of the wound RO membrane so as to output concentrated water outwards; the top end of the central tube is communicated with the outside and outputs purified water.
2. The RO membrane cartridge using carbon fiber membranes according to claim 1, wherein a water guiding cloth is provided between the wound membrane layers of two adjacent RO membranes.
3. The RO membrane cartridge using a carbon fiber membrane according to claim 1, wherein the center tube is further sleeved with a stop collar;
the top end of the central tube is exposed out of the top of the water outlet pipe;
the inner peripheral surface of the limiting ring is propped against the outer peripheral surface of the central tube, and the bottom surface of the limiting ring is close to the top surface of the winding layer of the rear PP cotton filtering membrane.
4. The RO membrane cartridge using a carbon fiber membrane according to claim 1, wherein the wound layer of the post-PP cotton filtration membrane comprises an inner wrap, an upper protrusion, and a lower protrusion;
the inner winding part is a rear PP cotton filter membrane winding layer which is tightly wound on the central tube and is positioned in the winding layer of the rear carbon fiber membrane;
the upper protruding part is a rear PP cotton filter membrane winding layer which is wound on the periphery of the inner winding part and covers the top surface of the rear carbon fiber membrane winding layer;
and the lower protruding part is wound on the periphery of the inner winding part and covers the rear PP cotton filter membrane winding layer on the bottom surface of the rear carbon fiber membrane winding layer.
5. The RO membrane cartridge using a carbon fiber membrane according to claim 1, wherein a top surface of a wound layer of the post-PP cotton filtration membrane is coated with a sealant.
6. The RO membrane cartridge using carbon fiber membranes according to claim 1 wherein the bottom end of the central tube is a closed end.
7. The RO membrane cartridge using carbon fiber membranes according to claim 1, wherein the pre-composite carbon fiber membranes are composite membranes comprising PP cotton and PAC carbon fibers;
the post carbon fiber membrane is a PAC carbon fiber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239663.XU CN219792619U (en) | 2023-05-22 | 2023-05-22 | RO membrane filter core using carbon fiber membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239663.XU CN219792619U (en) | 2023-05-22 | 2023-05-22 | RO membrane filter core using carbon fiber membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219792619U true CN219792619U (en) | 2023-10-03 |
Family
ID=88151419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321239663.XU Active CN219792619U (en) | 2023-05-22 | 2023-05-22 | RO membrane filter core using carbon fiber membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219792619U (en) |
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2023
- 2023-05-22 CN CN202321239663.XU patent/CN219792619U/en active Active
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