CN205868019U - Reverse osmosis membrane module, filter core and water purifier - Google Patents
Reverse osmosis membrane module, filter core and water purifier Download PDFInfo
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- CN205868019U CN205868019U CN201620829161.6U CN201620829161U CN205868019U CN 205868019 U CN205868019 U CN 205868019U CN 201620829161 U CN201620829161 U CN 201620829161U CN 205868019 U CN205868019 U CN 205868019U
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- osmosis membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 127
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 124
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000002351 wastewater Substances 0.000 claims abstract description 38
- 239000008213 purified water Substances 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000008595 infiltration Effects 0.000 claims abstract description 10
- 238000001764 infiltration Methods 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a reverse osmosis membrane component, a filter element and a water purifier, wherein, the reverse osmosis membrane component comprises a central tube, a reverse osmosis membrane, an upper end cover and a lower end cover; the central pipe is provided with a plurality of water collecting holes for purified water to flow in, the upper end of the central pipe is provided with a pipe orifice for purified water to flow out, and the lower part of the central pipe is sealed; the reverse osmosis membrane is sleeved on the periphery of the central tube, and the peripheral surface of the reverse osmosis membrane is a raw water infiltration surface for raw water to infiltrate; the upper end cover is sleeved at the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and the upper end cover and the lower end cover are in sealing fit with the peripheral surface of the reverse osmosis membrane; the upper end cover is provided with a through hole matched with the central pipe and a through groove arranged on the periphery of the central pipe for the wastewater to flow out. The utility model discloses a reverse osmosis membrane subassembly's filtration efficiency and rate of recovery are higher.
Description
Technical Field
The utility model relates to a water purification unit field, in particular to reverse osmosis membrane module, filter core and water purifier.
Background
The reverse osmosis membrane subassembly of current filter core includes the center tube, along the reverse osmosis membrane of center tube circumference winding at the center tube to and the winding is at the seal membrane of reverse osmosis membrane periphery. When the water purifier works, raw water enters from one end of the reverse osmosis membrane, in the process of flowing along the axial direction, one part of water enters the central tube along the radial direction after being filtered by the reverse osmosis membrane, and the other part of water flows into the wastewater waterway from the other end of the reverse osmosis membrane along the axial direction. Because the water flow in the reverse osmosis membrane has less components flowing along the radial direction, and more purified water can be mixed with the wastewater and flows out along the axial direction, the filtering efficiency and the recovery rate are low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a reverse osmosis membrane subassembly aims at solving the technical problem that current reverse osmosis membrane subassembly's filtration efficiency and rate of recovery are on the low side.
In order to achieve the purpose, the reverse osmosis membrane component provided by the utility model comprises a central tube, a reverse osmosis membrane, an upper end cover and a lower end cover; wherein,
the central pipe is provided with a plurality of water collecting holes for purified water to flow in, the upper end of the central pipe is provided with a pipe orifice for purified water to flow out, and the lower part of the central pipe is sealed;
the reverse osmosis membrane is sleeved on the periphery of the central tube, and the peripheral surface of the reverse osmosis membrane is a raw water infiltration surface for raw water to infiltrate;
the upper end cover is sleeved at the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and the upper end cover and the lower end cover are in sealing fit with the peripheral surface of the reverse osmosis membrane;
the upper end cover is provided with a through hole matched with the central pipe and a through groove arranged on the periphery of the central pipe for the wastewater to flow out.
Preferably, the lower end cover comprises a bottom wall and a side wall extending upwards from the outer edge of the bottom wall, the side wall is sleeved on the periphery of the reverse osmosis membrane, and a positioning column is arranged in the middle of the bottom wall in an upwards protruding mode;
the lower end of the central tube is open and sleeved on the positioning column, and a partition plate is arranged at the position, close to the open, of the inner cavity of the central tube.
Preferably, the outer wall surface of lateral wall is equipped with a plurality of elasticity buckles along circumference interval, the opening of elasticity buckle sets up upwards.
Preferably, the upper end cover and the lower end cover are both bonded with the peripheral surface of the reverse osmosis membrane through glue.
The utility model also provides a filter element, which comprises a filter cap, a filter cylinder which is hermetically sleeved with the lower end of the filter cap, and a reverse osmosis membrane component; wherein,
the reverse osmosis membrane component comprises a central tube, a reverse osmosis membrane, an upper end cover and a lower end cover; wherein,
the central pipe is provided with a plurality of water collecting holes for purified water to flow in, the upper end of the central pipe is provided with a pipe orifice for purified water to flow out, and the lower part of the central pipe is sealed;
the reverse osmosis membrane is sleeved on the periphery of the central tube, and the peripheral surface of the reverse osmosis membrane is a raw water infiltration surface for raw water to infiltrate;
the upper end cover is sleeved at the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and the upper end cover and the lower end cover are in sealing fit with the peripheral surface of the reverse osmosis membrane;
the upper end cover is provided with a through hole matched with the central pipe and a through groove positioned on the periphery of the central pipe for wastewater to flow out;
the filter cap is provided with a raw water cavity, a raw water pipe communicated with the raw water cavity, a purified water pipe communicated with the purified water cavity, a wastewater cavity and a wastewater pipe communicated with the wastewater cavity;
a raw water channel communicated with the raw water cavity is formed between the inner wall surface of the filter cylinder and the outer peripheral surface of the reverse osmosis membrane; the water purification chamber with the mouth of pipe butt joint of center tube, the waste water chamber with logical groove butt joint.
Preferably, the filter cap comprises a top cover, an inner pipe wall, a middle pipe wall and an outer pipe wall, wherein the inner pipe wall, the middle pipe wall and the outer pipe wall are convexly arranged on the lower surface of the top cover and are sequentially nested from inside to outside at intervals; wherein,
the inner cavity of the inner pipe wall is a water purification cavity, the cavity between the inner pipe wall and the middle pipe wall is a wastewater cavity, and the cavity between the middle pipe wall and the outer pipe wall is a raw water cavity.
Preferably, the filter element further comprises an adapter, wherein the adapter comprises a cover plate arranged at an interval with the upper end surface of the reverse osmosis membrane, an upper pipe section extending upwards from the cover plate, and a lower pipe section extending downwards from the outer edge of the cover plate;
the middle part of the cover plate is provided with a through hole for the central pipe to penetrate and communicate with the through groove and the inner cavity of the upper pipe section, the upper pipe section is embedded in the wall of the central pipe in a sealing mode, and the lower pipe section is sleeved at the upper end of the reverse osmosis membrane in a sealing mode.
Preferably, the lower surface of the cover plate is convexly provided with a support plate which is abutted against the upper end of the reverse osmosis membrane.
Preferably, a plurality of protrusions are arranged on the outer peripheral surface of the lower pipe section at intervals along the circumferential direction.
The utility model also provides a water purifier, which comprises a filter element, wherein the filter element comprises a filter cap, a filter cylinder which is hermetically sleeved with the lower end of the filter cap, and a reverse osmosis membrane component; wherein,
the reverse osmosis membrane component comprises a filter cap, a filter cylinder which is hermetically sleeved with the lower end of the filter cap, and a reverse osmosis membrane component; wherein,
the reverse osmosis membrane component comprises a central tube, a reverse osmosis membrane, an upper end cover and a lower end cover; wherein,
the central pipe is provided with a plurality of water collecting holes for purified water to flow in, the upper end of the central pipe is provided with a pipe orifice for purified water to flow out, and the lower part of the central pipe is sealed;
the reverse osmosis membrane is sleeved on the periphery of the central tube, and the peripheral surface of the reverse osmosis membrane is a raw water infiltration surface for raw water to infiltrate;
the upper end cover is sleeved at the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and the upper end cover and the lower end cover are in sealing fit with the peripheral surface of the reverse osmosis membrane;
the upper end cover is provided with a through hole matched with the central pipe and a through groove positioned on the periphery of the central pipe for wastewater to flow out;
the filter cap is provided with a raw water cavity, a raw water pipe communicated with the raw water cavity, a purified water pipe communicated with the purified water cavity, a wastewater cavity and a wastewater pipe communicated with the wastewater cavity;
a raw water channel communicated with the raw water cavity is formed between the inner wall surface of the filter cylinder and the outer peripheral surface of the reverse osmosis membrane; the water purification chamber with the mouth of pipe butt joint of center tube, the waste water chamber with logical groove butt joint.
The utility model discloses reverse osmosis membrane module is being applied to the filter core when filtering, and the raw water is flowed into reverse osmosis membrane by reverse osmosis membrane's raw water infiltration face, and the inside water of reverse osmosis membrane mainly flows along reverse osmosis membrane's radial direction, and the water filtration time of the same flow is short, the velocity of flow is fast, and it is little along reverse osmosis membrane axial direction concentration polarization, has reduced the decay rate of reverse osmosis membrane flux, and consequently, this novel reverse osmosis membrane module's of use filtration efficiency and rate of recovery are higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a filter element of the present invention;
FIG. 2 is a schematic top view of the cartridge of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line III-III of FIG. 2;
FIG. 4 is a schematic structural view of the upper end cap of FIG. 3;
FIG. 5 is a schematic structural view of the lower end cap of FIG. 3;
FIG. 6 is a schematic structural view of the filter cap of FIG. 3;
FIG. 7 is a schematic view of the construction of the rotary joint of FIG. 3;
fig. 8 is a schematic view of the rotary joint of fig. 7 at another angle.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Filter cap | 21 | Raw water channel | 342 | Side wall |
| 11 | Top cover | 31 | Central tube | 343 | Positioning column |
| 111 | Raw water cavity | 311 | Water collecting hole | 344 | Elastic buckle |
| 112 | Water purifying cavity | 312 | Pipe orifice | 4 | Adapter |
| 113 | Waste water cavity | 313 | Partition board | 41 | Cover plate |
| 114 | Raw water pipe | 32 | Reverse osmosis membrane | 411 | Via hole |
| 115 | Water purifying pipe | 321 | Raw water infiltration surface | 412 | Supporting plate |
| 116 | Waste pipe | 33 | Upper end cap | 42 | Upper pipe section |
| 12 | Inner pipe wall | 331 | Through hole | 43 | Lower pipe section |
| 13 | Middle tube wall | 332 | Through groove | 431 | Projection |
| 14 | Outer pipe wall | 34 | Lower end cap | ||
| 2 | Filter cartridge | 341 | Bottom wall |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a reverse osmosis membrane 32 subassembly.
In the embodiment of the present invention, as shown in fig. 1 to 3, the reverse osmosis membrane 32 assembly includes a central tube 31, a reverse osmosis membrane 32, an upper end cap 33 and a lower end cap 34; wherein,
the central tube 31 is provided with a plurality of water collecting holes 311 for the purified water to flow in, the upper end of the central tube 31 is provided with a tube opening 312 for the purified water to flow out, and the lower part of the central tube 31 is closed;
the reverse osmosis membrane 32 is sleeved on the periphery of the central tube 31, and the peripheral surface of the reverse osmosis membrane 32 is a raw water infiltration surface 321 for raw water infiltration;
the upper end cover 33 is sleeved at the upper end of the reverse osmosis membrane 32, the lower end cover 34 is buckled at the lower end of the reverse osmosis membrane 32, and the upper end cover 33 and the lower end cover 34 are in sealing fit with the peripheral surface of the reverse osmosis membrane 32;
referring to fig. 4, the upper end cap 33 has a through hole 331 adapted to the central tube 31, and a through groove 332 located at the periphery of the central tube 31 for flowing out the waste water.
In this embodiment, the central tube 31 plays both a role of collecting filtered purified water and a role of supporting the reverse osmosis membrane 32, and it can be understood that the central tube 31 and the through hole 331 of the upper end cap 33 need to be ensured to be in sealing fit because waste water and purified water cannot be mixed. To facilitate assembly with other components of the cartridge, the center tube 31 is typically exposed at the upper end of the upper end cap 33. The membrane of the reverse osmosis membrane 32 is wound on the outer circumferential surface of the central tube 31 along the circumferential direction of the central tube 31, and the upper end cover 33 is matched with the lower end cover 34 so that the wastewater flows to the upper end cover 33 along the axial direction of the reverse osmosis membrane 32 and flows out from the through groove 332.
The utility model discloses reverse osmosis membrane 32 subassembly is being applied to the filter core when filtering, and the raw water flows into reverse osmosis membrane 32 by reverse osmosis membrane 32's raw water infiltration face 321, and the inside water of reverse osmosis membrane 32 mainly flows along reverse osmosis membrane 32's radial direction, and the water filtration time of the same flow is short, the velocity of flow is fast, and it is little along reverse osmosis membrane 32 axial direction concentration polarization, has reduced the decay rate of reverse osmosis membrane 32 membrane flux, and consequently, this uses neotype reverse osmosis membrane 32 subassembly's filtration efficiency and rate of recovery higher.
Further, referring to fig. 5, in an embodiment, the lower end cap 34 includes a bottom wall 341 and a side wall 342 extending upward from an outer edge of the bottom wall 341, the side wall 342 is sleeved on the periphery of the reverse osmosis membrane 32, and a positioning column 343 is disposed in a middle portion of the bottom wall 341 and protrudes upward;
the lower end of the central tube 31 is open and is sleeved on the positioning column 343, and a partition 313 is arranged in the inner cavity of the central tube 31 near the open.
In this embodiment, the sidewall 342 is cylindrical, and the axial direction thereof is perpendicular to the bottom wall 341, the positioning column 343 is tightly fitted to the inner wall surface of the central tube 31, and the central tube 31 and the lower end cap 34 are fitted to support the reverse osmosis membrane 32 well to prevent the reverse osmosis membrane from tilting relatively. The partition 313 in the central tube 31 can make the purified water flowing into the central tube 31 flow toward the upper end nozzle 312 in one direction. During assembly, the lower end of the central tube 31 is sleeved on the positioning column 343, then the reverse osmosis membrane 32 is sleeved on the central tube 31, the lower end of the reverse osmosis membrane 32 is embedded in the lower end cover 34, and finally the upper end cover 33 is sleeved on the upper end of the reverse osmosis membrane 32.
Further, the outer wall surface of the side wall 342 is provided with a plurality of elastic buckles 344 at intervals in the circumferential direction, and the openings of the elastic buckles 344 are arranged upward, so that when the reverse osmosis membrane 32 assembly is installed in the filter cartridge 2 of the filter element, the elastic buckles 344 can abut against the inner wall surface of the filter cartridge 2, thereby preventing the reverse osmosis membrane 32 assembly from shaking as a whole.
Further, both the upper cap 33 and the lower cap 34 are bonded to the outer peripheral surface of the reverse osmosis membrane 32 by glue. In this embodiment, compared with sealing with a sealing ring, the glue needs less filling space, which is beneficial to reducing the outer diameters of the upper end cover 33 and the lower end cover 34. Meanwhile, glue is adopted for sealing, and the reverse osmosis membrane 32, the upper end cover 33 and the lower end cover 34 can be in clearance fit, so that the assembly resistance is small.
The present invention further provides a filter element, referring to fig. 1 to 3 and fig. 6, in an embodiment, the filter element includes a filter cap 1, a filter cartridge 2 hermetically sleeved on a lower end of the filter cap 1, and a reverse osmosis membrane 32 assembly; wherein,
the specific structure of the reverse osmosis membrane 32 assembly refers to the above embodiments, and since the filter element adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The filter cap 1 is provided with a raw water cavity 111, a raw water pipe 114 communicated with the raw water cavity 111, a purified water cavity 112, a purified water pipe 115 communicated with the purified water cavity 112, a waste water cavity 113 and a waste water pipe 116 communicated with the waste water cavity 113;
a raw water passage 21 communicating with the raw water chamber 111 is formed between the inner wall surface of the filter cartridge 2 and the outer peripheral surface of the reverse osmosis membrane 32; the clean water chamber 112 is interfaced with the mouth 312 of the central tube 31 and the waste water chamber 113 is interfaced with the through slot 332.
In this embodiment, the filter cap 1 and the filter cartridge 2 can be sealed by spin welding during assembly. Since the raw water chamber 111, the purified water chamber 112 and the waste water chamber 113 are isolated from each other, the shape is not limited to a specific one, as long as the corresponding pipe opening 312 or passage can be communicated. In general, the raw water chamber 111, the purified water chamber 112, and the waste water chamber 113 are annular spaces in order to fit the shapes of the filter cartridge 2 and the reverse osmosis membrane 32. In order to facilitate the connection with the external waterway component, the raw water pipe 114, the purified water pipe 115 and the waste water pipe 116 are arranged in pairs adjacent to each other and expose the body of the filter cap 1.
Further, the filter cap 1 comprises a top cover 11, an inner pipe wall 12, a middle pipe wall 13 and an outer pipe wall 14 which are convexly arranged on the lower surface of the top cover 11 and are sequentially nested from inside to outside at intervals; wherein,
the inner cavity of the inner pipe wall 12 is a water purification cavity 112, the cavity between the inner pipe wall 12 and the middle pipe wall 13 is a waste water cavity 113, and the cavity between the middle pipe wall 13 and the outer pipe wall 14 is a raw water cavity 111.
In this embodiment, specifically, the central tube 31 and the inner tube wall 12 are sealed by a sealing ring, an annular groove for installing the sealing ring is provided on the outer circumferential surface of the upper end of the central tube 31, and the waste water chamber 113 is butted with the notch of the upper end cover 33. The space is divided by the pipe wall to form the required raw water cavity 111, the water purification cavity 112 and the waste water cavity 113, and one pipe wall can be shared between every two cavities, so that the space utilization rate is high.
Further, referring to fig. 7 and 8, in an embodiment, the filter element further includes an adapter 4, the adapter 4 includes a cover plate 41 spaced apart from an upper end surface of the reverse osmosis membrane 32, an upper pipe section 42 extending upward from the cover plate 41, and a lower pipe section 43 extending downward from an outer edge of the cover plate 41;
the middle part of the cover plate 41 is provided with a through hole 411 for the central tube 31 to penetrate and communicate with the through groove 332 and the inner cavity of the upper tube section 42, the upper tube section 42 is embedded in the middle tube wall 13 in a sealing way, and the lower tube section 43 is sleeved at the upper end of the reverse osmosis membrane 32 in a sealing way.
In this embodiment, the adapter 4 connects the upper end cap 33 and the middle pipe wall 13 well, and the cost of the butt joint of the waste water cavity 113 and the notch of the upper end cap 33 is reduced. In the embodiment where the lower end cover 34 has the positioning column 343, the positioning column 343 is engaged with the upper pipe section 42, and the central pipe 31 is engaged with the inner pipe section, so that the centering of the reverse osmosis membrane 32 can be effectively ensured, and the reverse osmosis membrane 32 can be firmly supported. When adapter 4 is connected with filtering cap 1, specifically, pass through the sealing washer between adapter 4's the upper tube section 42 and well diapire 13 and seal, be equipped with the annular groove that is used for installing the sealing washer on the outer peripheral face of upper tube section 42.
Further, a support plate 412 that abuts the upper end of the reverse osmosis membrane 32 is provided to protrude from the lower surface of the cover plate 41. In this embodiment, it can be understood that, in order to ensure that the waste water can smoothly flow out of the reverse osmosis membrane 32 through the through hole 411, the cover plate 41 and the upper end cover 33 are arranged at an interval in the axial direction, so that, during assembly, it is difficult to ensure the axial positioning of the adapter 4 only by the bonding force between the lower pipe section 43 and the outer circumferential surface of the reverse osmosis membrane 32. This problem is best solved by providing the support plate 412. Preferably, the supporting plates 412 are radially spaced, and the cover plate 41 is tapered from bottom to top, so as to facilitate the collection of the waste water to the through hole 411.
Further, be equipped with a plurality of archs along circumference interval on the outer peripheral face of lower tube section 43, so, can guarantee raw water channel 21 unblocked while, can also fix a position reverse osmosis membrane 32 in the radial direction, prevent that reverse osmosis membrane 32's upper end from rocking. In the embodiment in which the lower end cap 34 has the elastic clip 344, the protrusion, together with the elastic clip 344, can position the reverse osmosis membrane 32 at both upper and lower ends of the reverse osmosis membrane 32, prevent the reverse osmosis membrane from colliding with the inner wall surface of the filter cartridge 2 and being worn, and at the same time, can maintain the designed width of the raw water passage 21.
The utility model discloses still provide a water purifier, including the filter core, the concrete structure of this filter core refers to above-mentioned embodiment, because this filter core has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.
Claims (10)
1. A reverse osmosis membrane component is characterized by comprising a central tube, a reverse osmosis membrane, an upper end cover and a lower end cover; wherein,
the central pipe is provided with a plurality of water collecting holes for purified water to flow in, the upper end of the central pipe is provided with a pipe orifice for purified water to flow out, and the lower part of the central pipe is sealed;
the reverse osmosis membrane is sleeved on the periphery of the central tube, and the peripheral surface of the reverse osmosis membrane is a raw water infiltration surface for raw water to infiltrate;
the upper end cover is sleeved at the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and the upper end cover and the lower end cover are in sealing fit with the peripheral surface of the reverse osmosis membrane;
the upper end cover is provided with a through hole matched with the central pipe and a through groove arranged on the periphery of the central pipe for the wastewater to flow out.
2. The reverse osmosis membrane assembly according to claim 1, wherein the lower end cap comprises a bottom wall and a side wall extending upward from the outer edge of the bottom wall, the side wall is sleeved on the periphery of the reverse osmosis membrane, and a positioning column is convexly arranged upward in the middle of the bottom wall;
the lower end of the central tube is open and sleeved on the positioning column, and a partition plate is arranged at the position, close to the open, of the inner cavity of the central tube.
3. The reverse osmosis membrane module according to claim 2, wherein the outer wall surface of the side wall is provided with a plurality of elastic buckles at intervals along the circumferential direction, and the openings of the elastic buckles are arranged upwards.
4. The reverse osmosis membrane assembly of claim 1, wherein the upper and lower end caps are bonded to the outer peripheral surface of the reverse osmosis membrane by glue.
5. A filter cartridge comprising a filter cap, a filter cartridge sealingly received in a lower end of said filter cap, and a reverse osmosis membrane module according to any one of claims 1-4; wherein,
the filter cap is provided with a raw water cavity, a raw water pipe communicated with the raw water cavity, a purified water pipe communicated with the purified water cavity, a wastewater cavity and a wastewater pipe communicated with the wastewater cavity;
a raw water channel communicated with the raw water cavity is formed between the inner wall surface of the filter cylinder and the outer peripheral surface of the reverse osmosis membrane; the water purification chamber with the mouth of pipe butt joint of center tube, the waste water chamber with logical groove butt joint.
6. The filter element of claim 5, wherein the filter cap comprises a top cover, an inner pipe wall, a middle pipe wall and an outer pipe wall which are convexly arranged on the lower surface of the top cover and are nested at intervals from inside to outside in sequence; wherein,
the inner cavity of the inner pipe wall is a water purification cavity, the cavity between the inner pipe wall and the middle pipe wall is a wastewater cavity, and the cavity between the middle pipe wall and the outer pipe wall is a raw water cavity.
7. The filter element of claim 6, further comprising an adapter comprising a cover plate spaced from the upper end surface of the reverse osmosis membrane, an upper tube section extending upwardly from the cover plate, and a lower tube section extending downwardly from the outer edge of the cover plate;
the middle part of the cover plate is provided with a through hole for the central pipe to penetrate and communicate with the through groove and the inner cavity of the upper pipe section, the upper pipe section is embedded in the wall of the central pipe in a sealing mode, and the lower pipe section is sleeved at the upper end of the reverse osmosis membrane in a sealing mode.
8. The filter element of claim 7, wherein a support plate abutting an upper end of the reverse osmosis membrane is provided to protrude from a lower surface of the cover plate.
9. The filter cartridge according to claim 7 wherein the outer peripheral surface of said lower tubular section is provided with a plurality of circumferentially spaced projections.
10. A water purifier, characterized by comprising the filter cartridge according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829161.6U CN205868019U (en) | 2016-07-29 | 2016-07-29 | Reverse osmosis membrane module, filter core and water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620829161.6U CN205868019U (en) | 2016-07-29 | 2016-07-29 | Reverse osmosis membrane module, filter core and water purifier |
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| Publication Number | Publication Date |
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| CN205868019U true CN205868019U (en) | 2017-01-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139904A (en) * | 2016-07-29 | 2016-11-23 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis membrane module, filter core and water purifier |
| CN107261617A (en) * | 2017-07-25 | 2017-10-20 | 佛山市顺德区盈沣泰环保科技有限公司 | A kind of filter core bottle cap component |
| WO2018161439A1 (en) * | 2017-03-07 | 2018-09-13 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element, composite filter element assembly, and water purification system |
| WO2022106432A1 (en) | 2020-11-18 | 2022-05-27 | Zhejiang Qinyuan Water Treatment S. T. Co., Ltd. | A membrane filter unit |
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2016
- 2016-07-29 CN CN201620829161.6U patent/CN205868019U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139904A (en) * | 2016-07-29 | 2016-11-23 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis membrane module, filter core and water purifier |
| WO2018161439A1 (en) * | 2017-03-07 | 2018-09-13 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element, composite filter element assembly, and water purification system |
| CN107261617A (en) * | 2017-07-25 | 2017-10-20 | 佛山市顺德区盈沣泰环保科技有限公司 | A kind of filter core bottle cap component |
| WO2022106432A1 (en) | 2020-11-18 | 2022-05-27 | Zhejiang Qinyuan Water Treatment S. T. Co., Ltd. | A membrane filter unit |
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