CN220589573U - RO membrane roll for water purification filter element - Google Patents
RO membrane roll for water purification filter element Download PDFInfo
- Publication number
- CN220589573U CN220589573U CN202321239648.5U CN202321239648U CN220589573U CN 220589573 U CN220589573 U CN 220589573U CN 202321239648 U CN202321239648 U CN 202321239648U CN 220589573 U CN220589573 U CN 220589573U
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- China
- Prior art keywords
- membrane
- carbon fiber
- water
- fiber membrane
- central tube
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- 239000012528 membrane Substances 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 93
- 239000004917 carbon fiber Substances 0.000 claims abstract description 93
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 238000005374 membrane filtration Methods 0.000 claims description 11
- 239000008213 purified water Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000004804 winding Methods 0.000 description 6
- 230000003749 cleanliness Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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 an RO membrane roll for a water purification filter element, which comprises a sealing membrane, a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane and a central tube; the central tube extends along the axial direction, and a plurality of water inlets are formed in the central tube; the rear carbon fiber membrane, the RO membrane, the front composite carbon fiber membrane and the sealing membrane are connected end to end in sequence and are wound on the outer peripheral surface of the central tube from inside to outside to respectively form a rear carbon fiber membrane filter layer, an RO membrane filter layer and a front composite carbon fiber membrane filter layer, and the rear carbon fiber membrane filter layer covers all water inlets; 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 filter layer of the front composite carbon fiber film, and part of the front composite carbon fiber film is exposed out of the water inlets. The water purifying device has compact structure, can have multiple filtering and purifying performances only by adopting one filter element of the RO membrane roll for the water purifying filter element, and has lower use cost.
Description
Technical Field
The utility model relates to the technical field of filter elements for purifying water, in particular to an RO membrane roll for a water purifying filter element.
Background
In order to ensure the purity of the purified water, the water purifying device in the prior art adopts a primary filter element and a front activated carbon filter element to remove particles and floccules in the water to be purified, adopts an RO membrane filter element to remove heavy metals and organic compounds in the water to be purified, and then improves the taste of the purified water through a rear activated carbon filter element, so that a plurality of filter elements occupy a larger inner space of the water purifying device.
After a period of use, the initial filtration end and the filtration end of the initial filtration filter element, the front activated carbon filter element and the rear activated carbon filter element are easy to deposit scale, so that the filtration efficiency of the corresponding filter elements is reduced, the filter elements in the water purifying device are required to be replaced one by one, 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 roll for a water purifying filter element, which can enable the filter element adopting the RO membrane roll to have the water purifying function of multiple filter layers, occupy less internal space and have lower use cost.
To achieve the purpose, the utility model adopts the following technical scheme:
an RO membrane roll for a water purifying filter element comprises a sealing membrane, a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane and a central tube;
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 carbon fiber membrane, the RO membrane, the front composite carbon fiber membrane and the sealing membrane are connected end to end in sequence and are wound on the outer circumferential surface of the central tube from inside to outside, and the wound rear carbon fiber membrane, RO membrane and front composite carbon fiber membrane respectively form a rear carbon fiber membrane filter layer, an RO membrane filter layer and a front composite carbon fiber membrane filter layer, and the rear carbon fiber membrane filter layer 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 filter layer of the front composite carbon fiber film, part of the front composite carbon fiber film is exposed out of the water inlets, and the water inlets are used for being communicated with an input port of water to be purified of the water purifying filter element;
the top end of the central tube is an open end and is used for being communicated with a purified water outlet of the water purifying filter element; the top surface of the RO membrane filter layer close to the top end of the central tube is communicated with a concentrated water outlet of the water purifying filter element.
Further, a water guiding cloth is arranged between the winding film layers of the adjacent two RO films.
Further, the outer peripheral surface of the central tube is also provided with an annular groove which is concave inwards;
the water inlet holes are distributed in the annular groove at intervals;
the rear carbon fiber membrane is wound on the outer peripheral surface of the central tube where the annular groove is located and forms a rear carbon fiber membrane filter layer;
the RO membrane filter layer comprises an outer roll part, an upper cover part and a lower cover part, wherein the outer roll part, the upper cover part and the lower cover part cover the peripheral surface, the top surface and the bottom surface of the rear carbon fiber membrane filter layer respectively.
Further, the bottom surface of the RO membrane filter layer, the top surface and the bottom surface of the preposed composite carbon fiber membrane filter layer are 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: the RO film roll for the water purifying filter element, disclosed by the utility model, has the advantages that the RO film roll for the water purifying filter element has triple filtering and purifying performances by adopting only one filter element using the RO film roll for the water purifying filter element, and not only can provide purified water with higher cleanliness, but also has lower use cost, and the rear carbon fiber film filter layer, the RO film filter layer and the front carbon fiber filter layer which are distributed from inside to outside are respectively formed by the rear carbon fiber film, the RO film and the front composite carbon fiber film which are sequentially wound on the periphery of the central tube from inside to outside.
In addition, the water inlets are distributed on the peripheral surface of the RO membrane roll for the water purification filter element, so that the RO membrane roll for the water purification filter element has larger surface area contacted with water to be purified, can adapt to larger water inlet pressure, and has better filtration efficiency; the periphery of the RO membrane filter layer is tightly wrapped by the preposed carbon fiber filter layer, so that the RO membrane in the RO membrane filter layer has good pressure resistance and longer service life.
Drawings
FIG. 1 is a schematic three-dimensional view of one embodiment of a roll of RO membrane for a water purifying cartridge of the present utility model;
FIG. 2 is a schematic cross-sectional view of an RO membrane roll for a water purifying cartridge of the present utility model;
wherein: a sealing film 1; a front composite carbon fiber membrane 2; RO membrane 3; a post carbon fiber membrane 4; a central tube 5; a water inlet hole 11; a water inlet hole 51; an outer winding part 31; an upper cover portion 32; a lower cover portion 33; annular recess 52.
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 roll for a water purifying filter element comprises a sealing membrane 1, a front composite carbon fiber membrane 2, an RO membrane 3, a rear carbon fiber membrane 4 and a central tube 5;
the hollow central tube 5 extends along the axial direction, the central tube 5 is provided with a plurality of water inlets 51, and the water inlets 51 are distributed at intervals and penetrate through the wall of the central tube 5;
the rear carbon fiber membrane 4, the RO membrane 3, the front composite carbon fiber membrane 2 and the sealing membrane 1 are connected end to end in sequence and are wound on the outer circumferential surface of the central tube 5 from inside to outside, the wound rear carbon fiber membrane 4, the RO membrane 3 and the front composite carbon fiber membrane 2 respectively form a rear carbon fiber membrane filter layer, an RO membrane filter layer and a front composite carbon fiber membrane filter layer, and the rear carbon fiber membrane filter layer covers all the water inlet holes 51;
the sealing film 1 is provided with a plurality of water inlets 11, the water inlets 11 are arranged at intervals and penetrate through the sealing film 1, the sealing film 1 is wrapped on the outer peripheral surface of the filter layer of the front composite carbon fiber film, part of the front composite carbon fiber film 2 is exposed out of the water inlets 11, and the water inlets 11 are used for being communicated with an inlet of water to be purified of the water purifying filter element;
the top end of the central tube 5 is an open end and is used for being communicated with a purified water outlet of the water purifying filter element; the top surface of the RO membrane filter layer close to the top end of the central tube 5 is communicated with a concentrated water outlet of the water purifying filter element.
As shown in figures 1-2, the RO membrane roll for the water purification filter element of the utility model is characterized in that the rear carbon fiber membrane 4, the RO membrane 3 and the front composite carbon fiber membrane 2 which are sequentially wound on the periphery of the central tube 5 from inside to outside respectively form 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, the structure is compact, and the water purification device can have multiple filtration and purification performances only by adopting one filter element using the RO membrane roll for the water purification filter element of the utility model, thereby not only providing purified water with higher cleanliness, but also having lower use cost.
In addition, the plurality of water inlet holes 11 are distributed on the peripheral surface of the RO membrane roll for the water purification filter element, so that the RO membrane roll for the water purification filter element has larger surface area contacted with water to be purified, can adapt to larger water inlet pressure, and has better filtration efficiency; the periphery of the RO membrane filter layer is tightly wrapped by the preposed carbon fiber filter layer, so that the RO membrane 3 in the RO membrane filter layer has good pressure resistance and longer service life.
Further, a water guiding cloth is arranged between the winding film layers of the adjacent two RO films 3.
The water guiding cloth can improve the fluidity of water to be purified between the winding film layers of two adjacent RO films 3, thereby further improving the filtration efficiency of the RO film roll for the water purifying filter element.
Further, the outer peripheral surface of the central tube 5 is also provided with an annular groove 52 which is concave inwards;
the water inlets 51 are distributed in the annular groove 52 at intervals;
the rear carbon fiber membrane 4 is wound on the outer peripheral surface of the central tube 5 where the annular groove 52 is positioned and forms the rear carbon fiber membrane filter layer;
the RO membrane filtration layer comprises an outer roll part 31, an upper cover part 32 and a lower cover part 33, wherein the outer roll part 31, the upper cover part 32 and the lower cover part 33 cover the peripheral surface, the top surface and the bottom surface of the rear carbon fiber membrane filtration layer respectively.
As shown in fig. 2, since the toughness of the carbon fiber membrane is poor, when the RO membrane 3 is wound, the winding layer of the RO membrane 3 is divided into an outer winding part 31, an upper cover part 32 and a lower cover part 33 to be wound around, and the top and bottom surfaces of the rear carbon fiber membrane filtration layers are covered by the RO membrane filtration layers of the upper cover part 32 and the lower cover part 33, the top and bottom edges of the rear carbon fiber membrane 4 can be prevented from being damaged by friction in the process of being assembled into the water purification cartridge, thereby preventing the service life of the rear carbon fiber membrane filtration layers from being affected.
Further, the bottom surface of the RO membrane filter layer, the top surface and the bottom surface of the preposed composite carbon fiber membrane filter layer are coated with sealant.
As shown in FIG. 2, the purification of the purified water can be prevented from being influenced by the infiltration of the water to be purified through the bottom surface of the front-end composite carbon fiber membrane filter layer and the bottom surface of the RO membrane filter layer into the rear-end carbon fiber membrane filter layer, and the infiltration of the concentrated water through the top surface of the front-end composite carbon fiber membrane filter layer can be avoided, so that the reduction of the purification of the purified water caused by the pollution of the concentrated water is avoided.
Further, the bottom end of the central tube 5 is a closed end.
As shown in fig. 2, the bottom end of the central tube 5 is set to be a closed end, so that the water to be purified can be prevented from penetrating from the bottom end of the central tube 5 to pollute the purified water in the central tube 5.
Preferably, the front composite carbon fiber membrane 2 is a composite membrane comprising PP cotton and PAC carbon fibers;
the post carbon fiber film 4 is a PAC carbon fiber film.
The front composite carbon fiber film 2 is a composite film formed by compounding PP cotton and PAC carbon fibers, has better toughness and scale inhibition performance, and has longer service life.
The post carbon fiber film 4 which is the PAC carbon fiber film has scale inhibition performance, and is beneficial to prolonging the service life of the post carbon fiber film 4.
In summary, as shown in fig. 1-2, in the embodiment of the present utility model, the RO membrane roll for a water purification cartridge, the post-carbon fiber membrane 4, the RO membrane 3 and the pre-composite carbon fiber membrane 2 sequentially wound around the outer periphery of the central tube 5 from inside to outside respectively form the post-carbon fiber membrane filtration layer, the RO membrane filtration layer and the pre-carbon fiber filtration layer distributed from inside to outside, which has the advantage of compact structure, so that the water purification device can have triple filtration purification performance only by adopting one cartridge using the RO membrane roll for a water purification cartridge of the present utility model, which not only can provide purified water with higher cleanliness, but also has lower use cost.
In addition, the plurality of water inlet holes 11 are distributed on the peripheral surface of the RO membrane roll for the water purification filter element, so that the RO membrane roll for the water purification filter element has larger surface area contacted with water to be purified, can adapt to larger water inlet pressure, and has better filtration efficiency; the periphery of the RO membrane filter layer is tightly wrapped by the preposed carbon fiber filter layer, so that the RO membrane 3 in the RO membrane filter layer has good pressure resistance and longer 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 (6)
1. The RO membrane roll for the water purification filter element is characterized by comprising a sealing membrane, a front composite carbon fiber membrane, an RO membrane, a rear carbon fiber membrane and a central tube;
the hollow central tube extends along the axial direction, and is provided with a plurality of water inlets and an annular groove which is recessed inwards; the water inlet holes are distributed at intervals and penetrate through the wall of the central tube; the water inlet holes are distributed in the annular groove at intervals;
the rear carbon fiber membrane, the RO membrane, the front composite carbon fiber membrane and the sealing membrane are connected end to end in sequence and are wound on the outer peripheral surface of the central tube from inside to outside;
the rear carbon fiber membrane is wound on the outer peripheral surface of the central tube where the annular groove is located and forms a rear carbon fiber membrane filter layer, and the rear carbon fiber membrane filter layer covers all the water inlet holes;
the wound RO membrane and the front composite carbon fiber membrane respectively form an RO membrane filter layer and a front composite carbon fiber membrane filter layer;
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 filter layer of the front composite carbon fiber film, part of the front composite carbon fiber film is exposed out of the water inlets, and the water inlets are used for being communicated with an input port of water to be purified of the water purifying filter element;
the top end of the central tube is an open end and is used for being communicated with a purified water outlet of the water purifying filter element; the top surface of the RO membrane filter layer close to the top end of the central tube is communicated with a concentrated water outlet of the water purifying filter element.
2. The RO membrane roll for a water purification cartridge according to claim 1 in which a water guiding cloth is provided between the wound membrane layers of two adjacent RO membranes.
3. The RO membrane roll for a water purification cartridge of claim 1, wherein the RO membrane filtration layer comprises an outer roll portion, an upper cover portion, and a lower cover portion, which cover the outer peripheral surface, the top surface, and the bottom surface of the post-carbon fiber membrane filtration layer, respectively.
4. A roll of RO membrane for a water purification cartridge according to claim 3 in which the bottom surface of the RO membrane filtration layer, the top surface and the bottom surface of the pre-composite carbon fiber membrane filtration layer are coated with a sealant.
5. The RO membrane roll for a water purification cartridge of claim 1 wherein the bottom end of the central tube is a closed end.
6. The RO membrane roll for a water purification cartridge of claim 1 wherein the pre-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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239648.5U CN220589573U (en) | 2023-05-22 | 2023-05-22 | RO membrane roll for water purification filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239648.5U CN220589573U (en) | 2023-05-22 | 2023-05-22 | RO membrane roll for water purification filter element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220589573U true CN220589573U (en) | 2024-03-15 |
Family
ID=90169593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321239648.5U Active CN220589573U (en) | 2023-05-22 | 2023-05-22 | RO membrane roll for water purification filter element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220589573U (en) |
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2023
- 2023-05-22 CN CN202321239648.5U patent/CN220589573U/en active Active
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