CN116236908A - Nanofiltration membrane component for wastewater treatment - Google Patents
Nanofiltration membrane component for wastewater treatment Download PDFInfo
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- CN116236908A CN116236908A CN202310530326.4A CN202310530326A CN116236908A CN 116236908 A CN116236908 A CN 116236908A CN 202310530326 A CN202310530326 A CN 202310530326A CN 116236908 A CN116236908 A CN 116236908A
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- driving
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- filter element
- wastewater treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of nanofiltration membranes and discloses a nanofiltration membrane component for wastewater treatment, which comprises a water inlet component, wherein one end of the water inlet component is provided with a component outer shell, the middle part of the interior of the component outer shell is provided with a component inner shell, the middle part of the interior of the component inner shell is provided with uniformly distributed filter element supporting devices, and the middle part of the filter element supporting devices is provided with a penetrating pipe penetrating through the component inner shell. The beneficial effects are that: the filter core supporting device with different surface flow rates at different positions can generate pressure difference through the arrangement of the driving device, the effect of improving the filtering efficiency is achieved, concentrated water at different filtering levels can be discharged respectively through the arrangement of the sectioning device, specific wastewater which needs to be separated into different substances can be separated, filter cores at all levels are respectively supported through the filter core supporting device, the working strength of the filter cores is effectively reduced, and the service life of the filter cores is prolonged.
Description
Technical Field
The invention relates to the technical field of nanofiltration membranes, in particular to a nanofiltration membrane component for wastewater treatment.
Background
Nanofiltration membranes are a functional semi-permeable membrane that allows the permeation of solvent molecules or certain low molecular weight solutes or low-valent ions. It is a special and promising variety of separation membranes, which is named for the size of the trapped material, which is approximately nanometers. Is used for removing organic matters and chromaticity of surface water, removing hardness of groundwater, partially removing soluble salts, concentrating fruit juice, separating useful substances in medicines, and the like.
The existing nanofiltration membrane component is difficult to separate the concentrated water of different filtering levels while decomposing raw water into produced water and concentrated water when in use, and the existing nanofiltration membrane component generally enables filter elements of all levels to mutually support when the filter elements are installed, when a large pressure difference occurs, fold layering is easily caused between the filter elements, and therefore insufficient filtering is caused.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a nanofiltration membrane component for wastewater treatment, which aims to overcome the technical problems in the prior art.
Therefore, the invention adopts the following specific technical scheme:
the utility model provides a waste water treatment receives filter membrane subassembly, includes the subassembly that intakes, the one end of subassembly that intakes is provided with the subassembly shell, the inside middle part of subassembly shell is provided with the subassembly inner shell, the inside middle part of subassembly inner shell is provided with evenly distributed's filter core strutting arrangement, filter core strutting arrangement's middle part is provided with runs through the pipe that runs through of subassembly inner shell, filter core strutting arrangement is close to the one end of subassembly of intaking is provided with drive arrangement, filter core strutting arrangement keeps away from drive arrangement's one end is provided with segmenting device, the subassembly shell is kept away from the one end of subassembly of intaking is provided with drainage subassembly.
Further, the subassembly of intaking includes the fixed station, the one deck of fixed station is provided with the inlet tube, the outer pot head of fixed station is equipped with the rotation sleeve, the inboard one end of rotation sleeve is provided with the screw groove, the one end of fixed station is provided with the sealing strip.
Further, a fixing thread matched with the thread groove is arranged on the outer side of one end, close to the rotating sleeve, of the assembly shell.
Further, the filter core strutting arrangement is including being located the inside middle part of subassembly inner shell fixed cylinder, the one end cover of fixed cylinder is equipped with the drive ring, the middle part of drive ring is provided with a plurality of evenly distributed's curved scraper blade, the lower extreme of curved scraper blade is provided with a plurality of evenly distributed's guide block, just the surface of fixed cylinder with the guide block corresponding position has all been seted up the guide way, curved scraper blade is kept away from the one end of drive ring is provided with the cover and establishes the solid fixed ring in curved scraper blade outside, the inside of subassembly inner shell is provided with three sets of filter core strutting arrangement, and is close to the subassembly inner shell axle center the filter core strutting arrangement size is less.
Further, the driving device comprises a first driving internal gear, a second driving gear and a third driving gear, wherein the first driving internal gear, the second driving gear and the third driving gear are respectively connected with the driving rings in the middle of the three groups of filter element supporting devices, a first transmission gear matched with one side of the interior of the first driving internal gear is arranged, a second transmission gear matched with one side of the upper end of the second driving gear is arranged at the position corresponding to the first transmission gear, a third transmission gear is arranged at the position corresponding to the second transmission gear at the upper end of the third driving gear, a transmission shaft connected with the first transmission gear and the second transmission gear is arranged in the middle of the third transmission gear, and one end, far away from the third driving gear, of the transmission shaft is provided with a driving motor connected with the fixed table.
Further, the sectioning device comprises water collecting rings corresponding to the filter element supporting devices, drain pipes penetrating through the component shells are arranged on two sides of one end of each water collecting ring, and the water collecting rings are respectively connected with the fixing cylinders in the middle of the filter element supporting components.
Further, the drainage assembly comprises an L-shaped water pipe connected with the penetrating pipe and penetrating through the assembly shell.
Compared with the prior art, the invention has the following beneficial effects:
1. the filter element is characterized in that the filter element is connected with the raw water pipe through the water inlet assembly, raw water to be filtered is introduced into the assembly outer shell, so that the raw water enters the assembly inner shell through the through holes in the outer wall of the assembly inner shell, the filter element is installed in the filter element supporting device, different filter elements are respectively supported, the effect of improving the compression strength of the filter element is achieved, the raw water is filtered and purified through the filter elements, the raw water is purified in a grading manner through the filter element supporting devices, after the raw water is purified, the raw water is discharged through the through holes, the different filter element supporting devices are rotated at different speeds through the through pipes, the filter element supporting devices close to the axis of the assembly inner shell are enabled to rotate at different speeds, the difference of the surface flow rates of the filter element supporting devices at different positions is achieved, the pressure difference is generated, the effect of improving the filtering efficiency is achieved, the concentrated water at different filtering levels is respectively discharged through the setting of the sectioning device, the practicability of the device is improved, and the device can treat specific waste water.
2. The device is characterized in that the device is in contact with the assembly shell through the arrangement of the fixed table, the arrangement of the internal thread groove of the rotating sleeve is matched with the fixed thread, so that the water inlet assembly is connected with the assembly shell, the sealing performance of the device is improved through the arrangement of the sealing strip, the driving ring is driven by the driving device, the driving ring is rotated, the curved scraper connected with the driving ring is rotated, raw water flows, the raw water pressure close to the curved scraper is reduced relative to the raw water outside the assembly shell, the raw water outside the assembly shell is enabled to permeate inwards through the action of the pressure, the adjacent filter element supporting devices are enabled to rotate at different speeds through the arrangement of the driving device, the flow rates between the adjacent filter element supporting devices are different, the pressures on two sides are different, and the raw water is facilitated to permeate from one side with higher pressure to the side with lower pressure, so that the filtering efficiency of the device is improved.
3. Through driving motor's setting, let transmission shaft drive first drive gear with second drive gear rotates simultaneously with the third drive gear to make first drive gear drive first drive internal gear, make second drive gear drive second drive gear, make third drive gear drive third drive gear, because the diameter of first drive internal gear is greater than the second drive gear, and third drive gear size is less than the second drive gear, then when the device is used, first drive internal gear rotational speed is less than the second drive gear, the rotational speed of second drive gear is less than the third drive gear, thereby reach the filter core strutting arrangement velocity of flow that makes the device inside be close to subassembly inner shell axle center and be greater than the velocity of flow of filter core strutting arrangement that keeps away from the subassembly inner shell axle center relatively, thereby make the device inside have pressure differential, and then reach the effect that makes the device inside filter because of pressure differential, thereby improve the filtration efficiency of device, through being connected with filter core strutting arrangement of different positions, thereby make the thick water of different filtration levels discharge through the drain pipe of different positions, the effectual practicality that has improved the device, can be to the raw water that need separate different substances, through the L that separates setting up the pipe and will produce the water through the pipe of L type of penetrating through the setting up.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, it will be obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a wastewater treatment nanofiltration membrane module according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a cartridge support device for a wastewater treatment nanofiltration membrane module according to an embodiment of the invention;
FIG. 3 is a schematic illustration of the interior of a wastewater treatment nanofiltration membrane module according to an embodiment of the invention;
FIG. 4 is a schematic view of the water inlet assembly of a wastewater treatment nanofiltration membrane assembly according to an embodiment of the invention;
FIG. 5 is a schematic diagram showing the internal structure of a nanofiltration membrane module for wastewater treatment according to an embodiment of the present invention;
FIG. 6 is a schematic diagram III of the internal structure of a wastewater treatment nanofiltration membrane module according to an embodiment of the invention;
FIG. 7 is a schematic diagram of a driving device of a nanofiltration membrane module for wastewater treatment according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of the drive device end according to an embodiment of the present invention;
fig. 9 is an enlarged partial view of the drive gear end according to an embodiment of the present invention.
In the figure:
1. a water inlet assembly; 2. a component housing; 3. an assembly inner housing; 4. a cartridge support device; 5. a through pipe; 6. a driving device; 7. a sectioning device; 8. a drainage assembly; 9. a fixed table; 10. a water inlet pipe; 11. rotating the sleeve; 12. a thread groove; 13. a fixed thread; 14. a fixed cylinder; 15. a drive ring; 16. a curved scraper; 17. a guide block; 18. a guide groove; 19. a fixing ring; 20. a first driving internal gear; 21. a second drive gear; 22. a third drive gear; 23. a first transmission gear; 24. a second transmission gear; 25. a third transmission gear; 26. a transmission shaft; 27. a driving motor; 28. a water collecting ring; 29. a drain pipe; 30. an L-shaped water pipe.
Detailed Description
For further explanation of the embodiments, the patent of the invention is provided with the accompanying drawings, which are part of the disclosure of the patent of the invention, mainly for illustration of the embodiments and for explanation of the working principle of the embodiments in conjunction with the related description of the specification, and with reference to these, it should be understood by those skilled in the art that other possible implementations and advantages of the patent of the invention, the components in the drawings not being drawn to scale, and that like reference numerals are generally used to designate like components.
Example 1
As shown in fig. 1-9:
the invention provides a nanofiltration membrane component for wastewater treatment, which comprises a water inlet component 1, wherein one end of the water inlet component 1 is provided with a component outer shell 2, the middle part of the inside of the component outer shell 2 is provided with a component inner shell 3, the middle part of the inside of the component inner shell 3 is provided with a uniformly distributed filter element supporting device 4, the middle part of the filter element supporting device 4 is provided with a penetrating pipe 5 penetrating the component inner shell 3, raw water to be filtered is introduced into the inside of the component outer shell 2 through the connection of the water inlet component 1 and a raw water pipe, so that the raw water enters the component inner shell 3 through a through hole on the outer wall of the component inner shell 3, filter elements are arranged through the arrangement of the filter element supporting device 4 to respectively support different filter elements, thereby achieving the effect of improving the compression strength of the filter elements, meanwhile, the raw water is filtered and evolved through the filter element supporting devices 4 for graded purification, when the raw water is purified, the produced water is discharged through the penetrating pipe 5, one end of the filter element supporting device 4, which is close to the water inlet component 1, is provided with the driving device 6, one end of the filter element supporting device 4, which is far away from the driving device 6, is provided with the sectioning device 7, one end of the component shell 2, which is far away from the water inlet component 1, is provided with the water discharging component 8, different filter element supporting devices 4 rotate at different speeds through the arrangement of the driving device 6, and meanwhile, the rotating speeds of the filter element supporting devices 4, which are close to the axle center of the component inner shell 3, are faster, so that the surface flow rates of the filter element supporting devices 4 at different positions are different to generate pressure difference, the effect of improving the filtering efficiency is achieved, concentrated water at different filtering levels is discharged respectively through the arrangement of the sectioning device 7, the practicability of the device is improved, so that the device can treat specific wastewater.
Example two
As shown in fig. 1-9:
the invention provides a nanofiltration membrane component for wastewater treatment, wherein the water inlet component 1 comprises a fixed table 9, a water inlet pipe 10 is arranged on one layer of the fixed table 9, a rotary sleeve 11 is sleeved at the outer end of the fixed table 9, a thread groove 12 is arranged at one end of the inner side of the rotary sleeve 11, and a sealing strip is arranged at one end of the fixed table 9. The assembly housing 2 is close to the outside of one end of the rotating sleeve 11 and is provided with a fixed thread 13 matched with the thread groove 12, the assembly housing 2 is contacted with the assembly housing 2 through the arrangement of the fixed table 9, the water inlet assembly 1 is connected with the assembly housing 2 through the mutual matching of the fixed thread 13 and the arrangement of the inner thread groove 12 of the rotating sleeve 11, and the tightness of the device is improved through the arrangement of the sealing strip. The filter element supporting device 4 comprises a fixed cylinder 14 positioned at the middle part inside the component inner shell 3, one end of the fixed cylinder 14 is sleeved with a driving ring 15, the middle part of the driving ring 15 is provided with a plurality of uniformly distributed curved scrapers 16, the lower end of each curved scraper 16 is provided with a plurality of uniformly distributed guide blocks 17, the outer surface of the fixed cylinder 14 and the corresponding position of each guide block 17 are provided with guide grooves 18, one end of each curved scraper 16, which is far away from the driving ring 15, is provided with a fixed ring 19 sleeved outside each curved scraper 16, three groups of filter element supporting devices 4 are arranged inside the component inner shell 3, the size of each filter element supporting device 4, which is close to the axle center of the component inner shell 3, is smaller, the driving ring 15 is driven by the driving device 6, the driving ring 15 is rotated, so that the curved scrapers 16 connected with the driving ring 15 are rotated, raw water flows, the raw water pressure, which is close to the curved scrapers 16, is reduced relative to the outer side of the component inner shell 3, the raw water is permeated into the inner shell through the inner side, the permeation device is arranged on the side, the side of the filter element supporting device is convenient to install the filter element supporting device from the two sides, the two sides are different filter element supporting devices 4 are arranged on the same, and the two sides are convenient to install the filter element supporting device from the different filter element supporting device, and the filter element supporting device is convenient to rotate.
Example III
As shown in fig. 1-9:
the invention provides a nanofiltration membrane component for wastewater treatment, wherein the driving device 6 comprises a first driving internal gear 20, a second driving gear 21 and a third driving gear 22 which are respectively connected with the driving rings 15 in the middle of the three groups of filter element supporting devices 4, a first transmission gear 23 matched with one another is arranged on one side of the inner part of the first driving internal gear 20, a second transmission gear 24 matched with one another is arranged at the position corresponding to the first transmission gear 23 at the upper end of the second driving gear 21, a third transmission gear 25 is arranged at the position corresponding to the second transmission gear 24 at the upper end of the third driving gear 22, a transmission shaft 26 for connecting the first transmission gear 23 and the second transmission gear 24 is arranged in the middle of the third transmission gear 25, one end of the transmission shaft 26 far away from the third driving gear 22 is provided with a driving motor 27 connected with the fixed table 9, the driving motor 27 drives the transmission shaft 26 to drive the first transmission gear 23 and the second transmission gear 24 to rotate simultaneously with the third transmission gear 25, the first transmission gear 23 drives the first driving internal gear 20, the second transmission gear 24 drives the second driving gear 21, and the third transmission gear 25 drives the third driving gear 22, wherein, as the diameter of the first driving internal gear 20 is larger than that of the second driving gear 21, and the size of the third driving gear 22 is smaller than that of the second driving gear 21, the rotation speed of the second driving gear 21 is smaller than that of the third driving gear 22 when the device is in use, so that the flow speed of the filter element supporting device 4 which is close to the axis of the inner shell 3 of the assembly inside the device is larger than that of the filter element supporting device 4 which is relatively far away from the axis of the inner shell 3 of the assembly is achieved, therefore, the pressure difference exists in the device, the effect of filtering the device due to the pressure difference is achieved, and the filtering efficiency of the device is improved. The segmenting device 7 includes with each the corresponding water catch ring 28 of filter core strutting arrangement 4, the one end both sides of water catch ring 28 all are provided with and run through the drain pipe 29 of subassembly shell 2, just water catch ring 28 respectively with the filter core strutting arrangement middle part fixed cylinder 14 is connected the installation through being connected with filter core strutting arrangement 4 of different positions respectively for the dense water of different filtration levels is discharged through drain pipe 29 of different positions, thereby effectually improved the practicality of device, can separate the raw water that needs the separation different substances. The water discharge assembly 8 includes an L-shaped water pipe 30 connected to the through pipe 5 and penetrating the assembly housing 2, and discharges the filtered produced water by the arrangement of the L-shaped water pipe 30 connected to the through pipe 5.
In summary, by means of the above technical scheme of the present invention, the surface flow rates of the filter element supporting devices at different positions are different through the arrangement of the driving device, so that the pressure difference is generated, and the effect of improving the filtering efficiency is achieved.
The foregoing description of the preferred embodiments of the present invention should not be taken as limiting the scope of the invention, but rather should be construed in view of the appended claims.
Claims (7)
1. The utility model provides a wastewater treatment nanofiltration membrane component, its characterized in that, including subassembly (1) that intakes, the one end of subassembly (1) that intakes is provided with subassembly shell (2), the inside middle part of subassembly shell (2) is provided with subassembly inner shell (3), the inside middle part of subassembly inner shell (3) is provided with evenly distributed's filter core strutting arrangement (4), the middle part of filter core strutting arrangement (4) is provided with runs through tubular (5) of subassembly inner shell (3), filter core strutting arrangement (4) are close to the one end of subassembly (1) that intakes is provided with drive arrangement (6), one end that drive arrangement (6) were kept away from to filter core strutting arrangement (4) is provided with segmentation device (7), the one end that subassembly shell (2) were kept away from subassembly (1) that intakes is provided with drainage subassembly (8).
2. The nanofiltration membrane assembly for wastewater treatment according to claim 1, wherein the water inlet assembly (1) comprises a fixed table (9), a water inlet pipe (10) is arranged on one layer of the fixed table (9), a rotating sleeve (11) is sleeved on the outer end of the fixed table (9), a thread groove (12) is formed in one end of the inner side of the rotating sleeve (11), and a sealing strip is arranged at one end of the fixed table (9).
3. A wastewater treatment nanofiltration membrane module as claimed in claim 2, wherein the module housing (2) is provided with a fixing thread (13) which cooperates with the thread groove (12) on the outside of one end of the module housing (2) adjacent to the rotating sleeve (11).
4. A wastewater treatment nanofiltration membrane assembly according to claim 3, wherein the filter element supporting device (4) comprises a fixed cylinder (14) positioned at the middle part inside the inner shell (3) of the assembly, one end of the fixed cylinder (14) is sleeved with a driving ring (15), the middle part of the driving ring (15) is provided with a plurality of uniformly distributed curved scrapers (16), the lower end of the curved scrapers (16) is provided with a plurality of uniformly distributed guide blocks (17), the outer surface of the fixed cylinder (14) and the corresponding positions of the guide blocks (17) are provided with guide grooves (18), one end of the curved scrapers (16) away from the driving ring (15) is provided with a fixed ring (19) sleeved on the outer side of the curved scrapers (16), and three groups of filter element supporting devices (4) are arranged inside the inner shell (3).
5. The nanofiltration membrane assembly for wastewater treatment according to claim 4, wherein the driving device (6) comprises a first driving internal gear (20), a second driving gear (21) and a third driving gear (22) which are respectively connected with the middle part of the three groups of filter element supporting devices (4) and the driving ring (15), a first transmission gear (23) matched with one side of the inside of the first driving internal gear (20) is arranged, a second transmission gear (24) matched with one side of the upper end of the second driving gear (21) corresponding to the first transmission gear (23) is arranged at a position corresponding to the second transmission gear (24), a third transmission gear (25) is arranged at a position corresponding to the second transmission gear (24) at the upper end of the third driving gear (22), a transmission shaft (26) connected with the first transmission gear (23) and the second transmission gear (24) is arranged at the middle part of the third transmission gear (25), and a driving table (27) connected with the fixed motor (9) is arranged at one end of the transmission shaft (26) far from the third driving gear (22).
6. A wastewater treatment nanofiltration membrane module according to claim 5, wherein the sectioning device (7) comprises a water collecting ring (28) corresponding to each filter element supporting device (4), water draining pipes (29) penetrating through the module housing (2) are arranged on two sides of one end of the water collecting ring (28), and the water collecting rings (28) are respectively connected with the fixed cylinders (14) in the middle of the filter element supporting module.
7. A wastewater treatment nanofiltration membrane module as claimed in claim 6 wherein the drainage module (8) comprises an L-shaped water pipe (30) connected to the through pipe (5) and extending through the module housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310530326.4A CN116236908B (en) | 2023-05-12 | 2023-05-12 | Nanofiltration membrane component for wastewater treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310530326.4A CN116236908B (en) | 2023-05-12 | 2023-05-12 | Nanofiltration membrane component for wastewater treatment |
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| CN116236908B CN116236908B (en) | 2023-07-18 |
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| CN212894037U (en) * | 2020-08-11 | 2021-04-06 | 诺克尔过滤（苏州）有限公司 | Degerming filter core |
| CN213853905U (en) * | 2020-10-10 | 2021-08-03 | 上海挚朴环保材料有限公司 | Integral type high performance micropore high efficiency filter core |
| CN215439882U (en) * | 2020-12-28 | 2022-01-07 | 纯米科技(上海)股份有限公司 | Filter element assembly and water purification equipment |
| CN215742142U (en) * | 2021-06-10 | 2022-02-08 | 吉林省昌跃环保设备有限公司 | Filter core convenient to disassemble and assemble for multi-stage filtering water treatment equipment |
| CN115417474A (en) * | 2022-11-07 | 2022-12-02 | 泰州禾益新材料科技有限公司 | Wastewater treatment device with function of reducing deformation amount of filter membrane |
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| CN116236908B (en) | 2023-07-18 |
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