CN219848524U - Large-flux filter capable of being positively and negatively flushed - Google Patents

Large-flux filter capable of being positively and negatively flushed Download PDF

Info

Publication number
CN219848524U
CN219848524U CN202321253405.7U CN202321253405U CN219848524U CN 219848524 U CN219848524 U CN 219848524U CN 202321253405 U CN202321253405 U CN 202321253405U CN 219848524 U CN219848524 U CN 219848524U
Authority
CN
China
Prior art keywords
water
filter
water inlet
flushing
positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321253405.7U
Other languages
Chinese (zh)
Inventor
杨理国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Hanhua Filter Core Co ltd
Original Assignee
Foshan Hanhua Filter Core Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Hanhua Filter Core Co ltd filed Critical Foshan Hanhua Filter Core Co ltd
Priority to CN202321253405.7U priority Critical patent/CN219848524U/en
Application granted granted Critical
Publication of CN219848524U publication Critical patent/CN219848524U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The utility model discloses a large-flux filter capable of being positively and negatively washed, and relates to the technical field of filtration. The utility model provides a but big flux filter of positive and negative washing, including the water route board subassembly and connect in the filter core of water route board subassembly, the filter core is including straining a section of thick bamboo and setting up in straining the inside filter material of section of thick bamboo, the filter material is used for filtering water, form the outer chamber between the outer wall of interior space and the filter material of straining a section of thick bamboo, first water inlet has been seted up to the water route board subassembly, first water inlet is used as the drainage when back flush, first positive flushing drain, first recoil water inlet and first water gap have been seted up to the water route board subassembly, first water inlet communicates in the outer chamber, first positive flushing drain, first recoil water inlet and first water gap communicate in the filter material. The utility model has the effect of prolonging the service life of the filter.

Description

Large-flux filter capable of being positively and negatively flushed
Technical Field
The utility model relates to the technical field of filtration, in particular to a large-flux filter capable of being positively and negatively washed.
Background
Tap water reaches each user through a pipe network, and impurities such as sediment, rust and the like exist in the passing pipe, so that the tap water needs to be filtered by adopting a filter. The secondary pollution is eliminated by filtration, the water pollution disease is reduced, the solid impurities are removed, and the safety of a pipeline system is protected.
In a period of use, a large amount of impurities can exist in the filter element, the existing filter can only be washed unidirectionally, unidirectional washing cannot clean the impurities, the impurities are accumulated in the filter element, and the service life of the filter is influenced.
Disclosure of Invention
In order to further wash out impurities and prolong the service life of the filter, the utility model provides a large-flux filter capable of being washed forward and backward.
The utility model provides a positive and negative flushing large flux filter which adopts the following technical scheme:
the utility model provides a but positive and negative large flux filter who washes, includes the water route board subassembly and connect in the filter core of water route board subassembly, the filter core including strain the section of thick bamboo and set up in strain the inside filter material of section of thick bamboo, the filter material is used for filtering water, strain the inner space of section of thick bamboo with form the outer chamber between the outer wall of filter material, first water inlet has been seted up to the water route board subassembly, first water inlet is used as the drainage when back flush, first positive flushing drain, first recoil water inlet and first water making mouth have been seted up to the water route board subassembly, first water inlet communicate in the outer chamber, first positive flushing drain first recoil water inlet with first water making mouth communicate in the filter material.
Through the technical scheme, water flows into the outer cavity from the first water inlet, flows out from the first water making port after being filtered by the filter material and can normally make water, the water flows into the outer cavity from the first water inlet, carries impurities after being washed by the filter material and flows out from the first positive flushing sewage outlet to carry out a positive flushing process, the water flows into the filter material from the first back flushing water inlet to carry out flushing, carries impurities to be discharged from the first water inlet through the outer cavity to carry out a back flushing process. Therefore, the filter is provided with a plurality of waterways, the filter can realize forward and reverse flushing, and the bidirectional cleaning can flush impurities more cleanly, so that the service life of the filter is prolonged.
Further, the waterway plate assembly comprises a waterway plate, a filter cover and a fixed cover, wherein the filter cover is fixedly connected to the waterway plate, the fixed cover is connected to one side of the filter cover away from the waterway plate, and the filter element is connected to the filter cover and is clamped to the fixed cover.
Through above-mentioned technical scheme, the water route board forms many water inlets and runner and conveniently carries out the water route conversion, and the filter cover is used for connecting the filter core to will strain lid fixed connection through fixed lid.
Further, the waterway plate is provided with a water inlet pipe, a water making pipe and a flushing pipe, the first water inlet is arranged on the water inlet pipe, the first forward flushing sewage outlet is arranged on the flushing pipe, and the first reverse flushing water inlet and the first water making port are both arranged on the water making pipe.
Through above-mentioned technical scheme, inlet tube, water making pipe and flushing pipe form the runner with the water route board respectively, and the water that gets into from different import can get into the different positions of straining the lid along different runners to filter by different water routes, reduced the pollution of water route.
Further, the filter element further comprises an end cover, the end cover is connected with the filter cartridge, and the end cover is connected with the filter cover and the fixed cover through a spin-on structure.
Through above-mentioned technical scheme, the connection of filter core and straining lid, water route board is realized through the soon card of end cover to easy to assemble and change the filter core.
Further, the rotary clamping structure comprises a rotary guide rail, a locking boss and a rotary clamping block, wherein the rotary guide rail is arranged on the filter cover, the locking boss is arranged on the fixed cover, the rotary clamping block is arranged on the end cover, and the rotary clamping block is slidably connected with the rotary guide rail and is clamped with the locking boss.
Through the technical scheme, the rotary clamping blocks enter or leave the locking boss along the direction of the rotary guide rail, so that when the filter element is used, the rotary clamping blocks of the end cover are matched with the locking boss along the rotary guide rail only by rotating the filter element, and the filter element and the filter cover are quickly connected or separated.
Further, the end cover is provided with a second water inlet, a second water making port and a second positive flushing drain outlet, the second water inlet is used for draining water during back flushing, the second water making port is used for water inflow during back flushing, the second water inlet is communicated with the water inlet pipe and the outer cavity, the second water making port is communicated with the water making pipe and the filter material, and the second positive flushing drain outlet is communicated with the flushing pipe and the filter material.
Through the technical scheme, water flows enter different positions of the filter cover through different channels, and enter different positions of the filter core through the second water inlet, the second water making port and the second positive flushing sewage outlet which are respectively formed in the corresponding positions of the end cover, so that the filtration of different waterways is realized.
Further, the filter material comprises a filter material barrel and an ultrafiltration membrane which is arranged in the filter material barrel and is used for filtering water, the filter material barrel is connected with the end cover, a third water inlet, a third water making port and a third positive flushing drain outlet are formed in the filter material barrel, the third water inlet is used for draining water during back flushing, the third water making port is used for feeding water during back flushing, the third water inlet is communicated with the second water inlet and the outer cavity, the third water making port is communicated with the second water making port and the ultrafiltration membrane, and the third positive flushing drain outlet is communicated with the second positive flushing drain outlet and the ultrafiltration membrane;
during normal flushing, water enters the filter material barrel from the outer cavity through the third water inlet and enters the second normal flushing drain outlet from the third normal flushing drain outlet, during back flushing, water enters the ultrafiltration membrane from the third water making port and enters the outer cavity from the third water inlet, and during normal water making, water enters the filter material barrel from the outer cavity through the third water inlet and enters the second water making port from the third water making port.
Through above-mentioned technical scheme, through third water inlet, third water gap and the communication of third normal flushing drain, guarantee normal recoil process and normal water production's going on.
Further, the filter element, the fixed cover and the filter cover are correspondingly provided with a plurality of filter covers, the filter covers are connected to the waterway plate, the fixed cover is correspondingly connected with the filter cover, and the filter element is correspondingly connected with the filter cover.
Through the technical scheme, a plurality of filter cores can be connected in parallel, so that the large-flux filtration of the filter is realized.
In summary, the utility model has the following beneficial effects:
1. the water flow flows into the outer cavity from the first water inlet, flows out from the first water making port after being filtered by the filter material and can normally make water, the water flow flows into the outer cavity from the first water inlet, carries impurities after being washed by the filter material and flows out from the first forward flushing drain outlet to carry out the forward flushing process, the water flow flows into the filter material from the first reverse flushing water inlet to carry out flushing, and carries impurities to be discharged from the first water inlet through the outer cavity to carry out the reverse flushing process. Therefore, the filter is provided with a plurality of waterways, the filter can realize forward and reverse flushing, and the bidirectional cleaning can flush impurities more cleanly, so that the service life of the filter is prolonged.
2. The rotary clamping blocks enter or leave the locking bosses along the direction of the rotary guide rail, so that when the filter element is used, the rotary clamping blocks of the end cover are matched with the locking bosses along the rotary guide rail only by rotating the filter element, and the filter element and the filter cover are quickly connected or separated.
3. Multiple cartridges may be connected in parallel to achieve high flux filtration of the filter.
Drawings
FIG. 1 is a schematic view of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic view of a waterway board assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a waterway board assembly according to another embodiment of the present utility model;
FIG. 4 is a schematic structural view of a filter element according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a filter material according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a waterway plate assembly; 11. a waterway plate; 12. a filter cover; 13. a fixed cover; 2. a first water inlet; 21. a first positive flush drain outlet; 22. a first backflushing water inlet; 23. a first water-making port; 3. a filter element; 31. a filter cartridge; 32. an end cap; 33. a filter material; 4. a water inlet pipe; 41. a water producing pipe; 42. a flushing pipe; 5. a rotary clamping block; 51. rotating the guide rail; 52. a locking boss; 6. a threaded hole; 61. a bolt; 7. a second water inlet; 71. a second water-making port; 72. a second positive flushing drain outlet; 8. a filter cartridge; 81. an ultrafiltration membrane; 82. a third water inlet; 83. a third water making port; 84. and thirdly, flushing the sewage outlet positively.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-5.
The embodiment of the utility model discloses a large-flux filter capable of being positively and negatively washed. Referring to fig. 1, a positive and negative flushable high flux filter includes a plurality of filter elements 3 connected in parallel, and in this embodiment, two filter elements 3 are used to filter tap water, thereby increasing the flux of tap water. The filter comprises a waterway plate assembly 1 and a filter element 3 detachably connected to the waterway plate assembly 1, and free water enters the filter element 3 from the waterway plate assembly 1 to be filtered.
Referring to fig. 2, the waterway plate assembly 1 includes a waterway plate 11, a water inlet pipe 4, a water making pipe 41 and a flushing pipe 42 are connected to the waterway plate 11, the water inlet pipe 4, the water making pipe 41 and the flushing pipe 42 are all arranged in parallel and form a flow channel with the waterway plate 11, a first water inlet 2 is formed at one end of the water inlet pipe 4, the first water inlet 2 is used for discharging water during backflushing, a first forward flushing sewage outlet 21 is formed in the flushing pipe 42, and a first backflushing water inlet 22 and a first water making port 23 are formed in the water making pipe 41.
The water route board 11 is kept away from the one side fixedly connected with of inlet tube 4 and strains lid 12, strains lid 12 and is used for connecting filter core 3, strains and has offered the opening that communicates with first normal flushing drain 21, first water inlet 2, first recoil water inlet 22 and first water gap 23 respectively on the lid 12, consequently the running water can follow different runners and follow the opening and enter into the different positions of straining lid 12. The fixed lid 13 of one side fixedly connected with that the water route board 11 was kept away from to the cover 12, and fixed lid 13 is used for joint filter core 3, and screw hole 6 has been seted up to the outside of fixed lid 13, and screw hole 6 has been seted up to the cover 12 of straining, and two screw holes 6 common threaded connection have bolt 61 to make things convenient for the split of fixed lid 13 and cover 12 through bolt 61.
Referring to fig. 3 and 4, the filter cartridge 3 includes a filter cartridge 31, an end cap 32, and a filter material 33, the end cap 32 is fixedly connected to the filter cartridge 31 by spin welding, and the end cap 32 is connected to the filter cap 12 and the fixed cap 13 by a spin-on structure, thereby realizing connection of the filter cartridge 3 and the waterway plate assembly 1. The filter material 33 is disposed inside the filter cartridge 31, and an outer cavity is formed between the inner space of the filter cartridge 31 and the outer wall of the filter material 33, and the outer cavity is communicated with the filter material 33.
The rotary clamping structure comprises rotary clamping blocks 5 arranged on the end cover 32, rotary guide rails 51 are arranged on two sides of the inner wall of the filter cover 12, the rotary clamping blocks 5 are connected to the rotary guide rails 51 in a sliding mode, locking bosses 52 are arranged on the fixed cover 13, and the rotary clamping blocks 5 are clamped to the locking bosses 52. The rotary clamping block 5 is clamped or separated with the locking boss 52 along the rotary guide rail 51 by rotating the filter cartridge 31, so that the filter cover 12 is quickly connected or separated with the filter element 3. A plurality of sealing rings are arranged between the upper end of the end cover 32 and the inner wall of the filter cover 12, so that the tightness of the connection between the filter cover 12 and the end cover 32 is enhanced.
The end cover 32 is provided with three layers, the horizontal cross section of the three layers is circular, the three layers are arranged from inside to outside along the same circle center, the diameters of the three layers from top to bottom are gradually increased, the three layers of the end cover 32 are respectively provided with a second water inlet 7, a second water making port 71 and a second positive flushing drain 72, the second water inlet 7 is used for draining water during backflushing, the second water making port 71 is used for water inflow during backflushing, the second water inlet 7 is communicated with the water inlet pipe 4 and the outer cavity, the second water making port 71 is communicated with the water making pipe 41 and the filter material 33, and the second positive flushing drain 72 is communicated with the flushing pipe 42 and the filter material 33. So that water enters different positions of the filter cover 12 from the water inlet pipe 4, the water making pipe 41 and the flushing pipe 42, and enters the filter element 3 through the second water inlet 7, the second water making port 71 and the second positive flushing drain 72 of the end cover 32 for filtering. The end cover 32 is arranged inside the filter cover 12, and the connection tightness between the filter cover 12 and the end cover 32 is enhanced through the sealing ring, so that the possibility of tap water leakage is reduced.
Referring to fig. 5, the filter material 33 includes a filter bowl 8 and an ultrafiltration membrane 81 provided inside the filter bowl 8, the ultrafiltration membrane 81 being provided in a plurality of tubular shapes to filter water. The filter vat 8 is connected to the end cover 32, the filter vat 8 is provided with a third water inlet 82, a third water making port 83 and a third forward flushing drain 84, the third water inlet 82 is used for draining water during back flushing, the third water making port 83 is used for water inflow during back flushing, the third water inlet 82 is communicated with the second water inlet 7 and the outer cavity, the third water making port 83 is communicated with the second water making port 71 and the ultrafiltration membrane 81, and the third forward flushing drain 84 is communicated with the second forward flushing drain 72 and the ultrafiltration membrane 81. So that water reaches the third water inlet 82, the third water making port 83 and the third forward flushing drain 84 from the second water inlet 7, the second water making port 71 and the second forward flushing drain 72 of the end cover 32 and contacts the ultrafiltration membrane 81 along different waterways for filtration.
The filter is provided with a plurality of water channels, namely a normal water making channel, a normal flushing water channel and a back flushing water channel, so that the filter can be subjected to forward and reverse flushing, the filter element 3 can be cleaned more cleanly, impurities can be removed more effectively, and the service life of the filter can be prolonged.
The normal water making channel is that tap water enters the water inlet pipe 4 from the first water inlet 2, and the first forward flushing sewage outlet 21 and the first backflushing water inlet 22 are in a closed state at the moment. Tap water enters the filter cover 12 through the opening along the water inlet pipe 4, flows to the outer cavity along the second water inlet 7, enters the filter vat 8 through the third water inlet 82, is filtered by the ultrafiltration membrane 81 to remove impurities, enters the second water making port 71 from the third water making port 83, flows to the water making pipe 41 through the filter cover 12, and finally flows out through the first water making port 23 to obtain purified water.
The positive flushing water channel is that flushing water enters the water inlet pipe 4 from the first water inlet 2, and the first backflushing water inlet 22 and the first water making port 23 are in a closed state at the moment. Flushing water enters the filter cover 12 through the opening along the water inlet pipe 4, flows to the outer cavity along the second water inlet 7, enters the filter vat 8 through the third water inlet 82, is filtered by the ultrafiltration membrane 81 to remove impurities, enters the second forward flushing sewage outlet 72 through the third forward flushing sewage outlet 84, is pumped to the flushing pipe 42 through the filter cover 12, and flows out through the first forward flushing sewage outlet 21 to finish forward flushing of the filter.
The back flushing water channel is that flushing water enters from the first back flushing water inlet 22, and the first forward flushing sewage outlet 21 and the first water making port 23 are in a closed state at the moment. The flushing water enters the filter cover 12 along the water making pipe 41 through the opening, contacts the filtering membrane through the second water making port 71 and the third water making port 83, and after being filtered, the flushing water carries impurities to reach the outer cavity through the third water inlet 82, returns to the filter cover 12 through the second water inlet 7, finally flows to the water inlet pipe 4, flows out through the first water inlet 2 and discharges sewage, and back flushing of the filter is completed.
The implementation principle of the large-flux filter capable of being positively and negatively flushed in the embodiment of the utility model is as follows: tap water enters the first water making port 23 from the first water inlet 2, the first forward flushing sewage outlet 21 and the first reverse flushing water inlet 22 are closed, and the filter element 3 filters the tap water normally to obtain purified water; the flushing water enters the first positive flushing sewage outlet 21 from the first water inlet 2, and the first back flushing water inlet 22 and the first water making port 23 are closed to realize positive flushing; the flushing water enters the first water inlet 2 from the first backflushing water inlet 22 and flows out, and the first forward flushing sewage outlet 21 and the first water making outlet 23 are closed, so that backflushing is realized.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A positive and negative flushable high flux filter, characterized by: including water route board subassembly (1) and connect in filter core (3) of water route board subassembly (1), filter core (3) including strain section of thick bamboo (31) with set up in strain inside filter material (33) of section of thick bamboo (31), filter material (33) are used for filtering water, strain the inner space of section of thick bamboo (31) with form the outer chamber between the outer wall of filter material (33), first water inlet (2) have been seted up to water route board subassembly (1), first water inlet (2) are used as the drainage when back flush, first positive flushing drain (21), first recoil water inlet (22) and first water making mouth (23) have been seted up to water route board subassembly (1), first water inlet (2) communicate in the outer chamber, first positive flushing drain (21), first recoil water inlet (22) and first water making mouth (23) communicate in filter material (33).
2. A positive-reverse flushable high flux filter according to claim 1, wherein: the water channel plate assembly (1) comprises a water channel plate (11), a filter cover (12) and a fixed cover (13), wherein the filter cover (12) is fixedly connected to the water channel plate (11), the fixed cover (13) is connected to one side, far away from the water channel plate (11), of the filter cover (12), and the filter element (3) is connected to the filter cover (12) and is clamped to the fixed cover (13).
3. A positive-reverse flushable high flux filter according to claim 2, wherein: the water way plate (11) is provided with a water inlet pipe (4), a water making pipe (41) and a flushing pipe (42), the first water inlet (2) is arranged on the water inlet pipe (4), the first positive flushing drain outlet (21) is arranged on the flushing pipe (42), and the first back flushing water inlet (22) and the first water making pipe (23) are both arranged on the water making pipe (41).
4. A positive-and-negative flushable high flux filter according to claim 3, wherein: the filter element (3) further comprises an end cover (32), the end cover (32) is connected with the filter cartridge (31), and the end cover (32) is connected with the filter cover (12) and the fixed cover (13) through a screwing structure.
5. A positive-reverse flushable high flux filter according to claim 4, wherein: the rotary clamping structure comprises a rotary guide rail (51), a locking boss (52) and a rotary clamping block (5), wherein the rotary guide rail (51) is arranged on the filter cover (12), the locking boss (52) is arranged on the fixed cover (13), the rotary clamping block (5) is arranged on the end cover (32), and the rotary clamping block (5) is slidably connected with the rotary guide rail (51) and is in clamping connection with the locking boss (52).
6. A positive-reverse flushable high flux filter according to claim 4, wherein: the end cover (32) is provided with a second water inlet (7), a second water making port (71) and a second positive flushing drain outlet (72), the second water inlet (7) is used for draining water during back flushing, the second water making port (71) is used for water inflow during back flushing, the second water inlet (7) is communicated with the water inlet pipe (4) and the outer cavity, the second water making port (71) is communicated with the water making pipe (41) and the filter material (33), and the second positive flushing drain outlet (72) is communicated with the flushing pipe (42) and the filter material (33).
7. A positive-reverse flushable high flux filter according to claim 6, wherein: the filter material (33) comprises a filter material barrel (8) and an ultrafiltration membrane (81) which is arranged in the filter material barrel (8) and is used for filtering water, the filter material barrel (8) is connected to the end cover (32), a third water inlet (82), a third water making port (83) and a third positive flushing drain outlet (84) are formed in the filter material barrel (8), the third water inlet (82) is used for draining water during back flushing, the third water making port (83) is used for water inflow during back flushing, the third water inlet (82) is communicated with the second water inlet (7) and the outer cavity, the third water making port (83) is communicated with the second water making port (71) and the ultrafiltration membrane (81), and the third positive flushing drain outlet (84) is communicated with the second positive flushing drain outlet (72) and the ultrafiltration membrane (81);
during normal flushing, water enters the filter material barrel (8) from the outer cavity through the third water inlet (82) and enters the second normal flushing drain outlet (72) from the third normal flushing drain outlet (84), during back flushing, water enters the ultrafiltration membrane (81) from the third water making port (83) and enters the outer cavity from the third water inlet (82), and during normal water making, water enters the filter material barrel (8) from the outer cavity through the third water inlet (82) and enters the second water making port (71) from the third water making port (83).
8. A positive-reverse flushable high flux filter according to claim 2, wherein: the filter element (3) is provided with a plurality of fixed covers (13) and the number of the filter covers (12) is correspondingly provided, the filter covers (12) are connected to the waterway plate (11), the fixed covers (13) are correspondingly connected with the filter covers (12), and the filter element (3) is correspondingly connected with the filter covers (12).
CN202321253405.7U 2023-05-22 2023-05-22 Large-flux filter capable of being positively and negatively flushed Active CN219848524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321253405.7U CN219848524U (en) 2023-05-22 2023-05-22 Large-flux filter capable of being positively and negatively flushed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321253405.7U CN219848524U (en) 2023-05-22 2023-05-22 Large-flux filter capable of being positively and negatively flushed

Publications (1)

Publication Number Publication Date
CN219848524U true CN219848524U (en) 2023-10-20

Family

ID=88368999

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321253405.7U Active CN219848524U (en) 2023-05-22 2023-05-22 Large-flux filter capable of being positively and negatively flushed

Country Status (1)

Country Link
CN (1) CN219848524U (en)

Similar Documents

Publication Publication Date Title
CN211449713U (en) Gate valve convenient to clearance blocks up
CN210915585U (en) Movable water purifier filter element
CN219848524U (en) Large-flux filter capable of being positively and negatively flushed
CN210332289U (en) Leading filter of intelligence back flush of RO membrane reverse osmosis water purification machine
CN206168025U (en) A moisture cloth mechanism for but, leading filtering component of back flush
CN217068397U (en) High-efficiency nanofiltration membrane for sewage treatment
CN214457189U (en) Filter core and water purification system
CN216426886U (en) Composite filter element of rear carbon integrated RO (reverse osmosis) membrane
CN213885223U (en) Self-cleaning cartridge filter
CN214485796U (en) Novel sand filter
CN214158784U (en) Faucet water purifying device with replaceable and cleanable filter element
CN210021360U (en) Manual back flush net type filter
CN211111347U (en) Filter system for prolonging service life of pipeline ultrafiltration
CN211384030U (en) Back-washing pre-filter
CN204737761U (en) Filter core and tap that purifies waste water purify waste water
CN209762325U (en) water tap using ultrafiltration carbon fiber composite filter element
CN212680207U (en) Filter and filtration system thereof
CN218572994U (en) Filter element with flow guide cone back-flushing filter
CN112386986A (en) Self-cleaning cartridge filter
CN208878298U (en) A kind of flushable ultrafiltration membrane filter element
CN218644842U (en) External forward and reverse flushing valve head for water purifier
CN212383291U (en) Continuous precision sewage filter
CN221739994U (en) Long-acting RO membrane water purifier
CN218709776U (en) Low-water-level turtle breeding filter
CN218422044U (en) Filter element and water purifying device comprising same

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant