CN214734924U - Composite filter element and waterway system using same - Google Patents
Composite filter element and waterway system using same Download PDFInfo
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- CN214734924U CN214734924U CN202120998524.XU CN202120998524U CN214734924U CN 214734924 U CN214734924 U CN 214734924U CN 202120998524 U CN202120998524 U CN 202120998524U CN 214734924 U CN214734924 U CN 214734924U
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Abstract
The utility model discloses a composite filter element and a waterway system using the same, wherein the composite filter element comprises an upper cover and a shell; the upper cover is arranged at the upper end of the shell and forms an accommodating space with the interior of the shell, and the composite filter element is communicated with a waterway system through the upper cover; the containing space is internally provided with a middle cover, a front scale inhibition assembly, an RO membrane assembly, a rear purification assembly and a bottom plate. When the composite filter element is adopted, different primary filter materials and RO membrane assemblies with different diameters can share the same upper cover and shell, and workers can replace different primary filter materials and RO membrane assemblies with different diameters according to requirements, so that the compatibility of the upper cover and the shell in the composite filter element is improved, and the purpose of saving the number of molds of the upper cover and the shell can be achieved; in addition, an upper cover and a shell do not need to be selected according to the sizes of the primary filter material and the RO membrane assembly, the assembly speed of the composite filter element is increased, and therefore the production efficiency is increased.
Description
Technical Field
The utility model relates to a water purifier technical field especially relates to a composite filter element and use its waterway system.
Background
At present, with the development of society, people pay more and more attention to health problems, and as tap water contains a lot of substances which are not beneficial to health, more and more people can set water purifying equipment at home to filter the tap water; the water purification equipment in the prior art uses a composite filter element to filter tap water. But the size of primary filter media and RO membrane filter core can change according to filtering the progression among the composite filter element to influence composite filter element's specification, lead to the filter element group spare of different filtration progression can't use on same filter core shell, make composite filter element's filter core shell compatibility relatively poor, when the equipment, need to filter the filter element group spare of progression and filter core shell with the difference and pair each other and just can assemble, greatly reduced production efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a composite filter element and use its waterway system to solve above-mentioned problem.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a composite filter element, which is applied to a waterway system of a water purifier, and comprises an upper cover and a shell; the upper cover is arranged at the upper end of the shell and forms an accommodating space with the interior of the shell, and the composite filter element is communicated with a waterway system through the upper cover;
the accommodating space is internally provided with a middle cover, a front scale inhibition assembly, an RO membrane assembly, a rear purification assembly and a bottom plate;
the preposed scale inhibition component is sleeved on the outer side of the RO membrane component; the outer edge of the middle cover is provided with a plurality of flow holes for raw water to pass through, and the middle part of the middle cover is provided with avoidance holes matched with the RO membrane assembly; a first blocking ring extends downwards from the avoidance hole, and the upper end of the front scale inhibition assembly is inserted outside the first blocking ring; the upper end of the preposed scale inhibition component is connected with the bottom surface of the middle cover;
the upper end of the RO membrane assembly penetrates through the avoiding hole, the water outlet end of the RO membrane assembly is communicated with the water inlet end of the rear purification assembly, and the first blocking ring is tightly attached to the outer wall of the RO membrane assembly;
the bottom plate set up in the bottom of casing, the top surface of bottom plate be equipped with leading dirty subassembly looks adaptation's first inserting groove, leading dirty subassembly's lower extreme is pegged graft in first inserting groove.
In the composite filter element, a second blocking ring is further arranged on the outer side of the first blocking ring of the middle cover, the first blocking ring and the second blocking ring form a second insertion groove matched with the front scale inhibition assembly, and the upper end of the front scale inhibition assembly is embedded into the second insertion groove.
In the composite filter element, the outer wall of the first blocking ring is provided with an inclined plane inclined towards one side of the RO membrane assembly, and a water stop belt is wound between the inclined plane and the outer wall of the RO membrane assembly.
In the composite filter element, the RO membrane component comprises a water collecting pipe and a filter membrane structure;
the filter membrane structure is sleeved outside the water collecting pipe, and the interior of the filter membrane structure is communicated with the side wall of the water collecting pipe;
the upper end of the water collecting pipe is communicated with the water inlet end of the rear purification assembly, the lower end of the water collecting pipe is inserted into the bottom plate, and a water blocking block used for blocking the downward flow of the pure water is arranged at the proximal end of the lower end of the water collecting pipe.
In the composite filter element, the bottom plate is provided with a plurality of support ribs on the inner side of the first insertion groove, the support ribs are circumferentially arranged by taking the axis of the bottom plate as the center, and the top surfaces of the support ribs are abutted against the bottom surface of the filter membrane structure.
In the composite filter element, a pure water outlet, a raw water inlet and a waste water outlet are arranged on the outer side of the upper cover; the upper cover is internally provided with a water baffle, a first water-proof ring and a second water-proof ring which are sequentially arranged from outside to inside;
the water baffle is connected with the bottom surface of the second water-proof ring to form a pure water channel; the rear purification component is arranged in the pure water channel; the upper end of the water collecting pipe penetrates through the water baffle and is communicated with the water inlet end of the rear purification component; the pure water outlet is communicated with the pure water channel;
the first water isolating ring is tightly abutted against the top surface of the middle cover, a raw water channel is formed in a space between the outer wall of the first water isolating ring, the inner wall of the upper cover, the flow hole, the outer wall of the front scale inhibition assembly and the inner wall of the shell, and the raw water channel is communicated with the raw water inlet;
a waste water channel is formed in a space among the inner wall of the first water-proof ring, the outer wall of the second water-proof ring, the middle cover, the water baffle and the outer wall of the RO membrane assembly; the waste water channel is communicated with the waste water outlet.
In the composite filter element, the front scale inhibition assembly comprises a plurality of layers of folding PP cotton and a carbon rod filter element, and the folding PP cotton is sequentially wrapped on the outer side of the carbon rod filter element.
In the composite filter element, the rear purification assembly comprises a folding PP cotton and a carbon fiber filter element, and the folding PP cotton is sequentially wrapped on the outer side of the carbon fiber filter element.
In the composite filter element, the shell is cylindrical, and the upper cover is matched with the shell; the upper cover, the shell, the preposed scale inhibition component, the RO membrane component and the postposition purification component are coaxially arranged.
The utility model also provides a waterway system, waterway system uses foretell composite filter core.
Composite filter element can have following beneficial effect:
(1) the upper cover, the middle cover and the bottom plate are matched to fix the preposed scale inhibition component, and separate raw water outside the preposed scale inhibition component, primary filtered water in the gap and wastewater generated by the RO membrane component, so that the phenomenon of water mixing is avoided.
(2) Different primary filter materials and RO membrane assemblies with different diameters can share the same upper cover and shell, so that the compatibility of the upper cover and the shell in the composite filter element is improved, and the purpose of saving the number of molds of the upper cover and the shell can be achieved; and an upper cover and a shell do not need to be selected according to the sizes of the primary filter material and the RO membrane assembly, so that the assembly speed of the composite filter element is increased, and the production efficiency is increased.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of one embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic diagram of an explosive structure according to an embodiment of the present invention;
in the drawings: the device comprises an upper cover 1, a shell 2, a middle cover 3, a front scale inhibition component 4, an RO membrane component 5, a rear purification component 6 and a bottom plate 7;
a pure water outlet 11, a raw water inlet 12, a waste water outlet 13, a water baffle 14, a first water-isolating ring 15 and a second water-isolating ring 16;
the flow holes 31, the avoidance holes 32, the first blocking ring 33 and the second blocking ring 34; a bevel 331;
a water collection pipe 51, a filter membrane structure 52; first mating groove 71, support rib 72.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present invention provides a composite filter element for a waterway system of a water purifier, the composite filter element includes an upper cover 1 and a housing 2; the upper cover 1 is arranged at the upper end of the shell 2, an accommodating space is formed between the upper cover 1 and the interior of the shell 2, and the composite filter element is communicated with a waterway system through the upper cover 1;
the accommodating space is internally provided with a middle cover 3, a front scale inhibition component 4, an RO membrane component 5, a rear purification component 6 and a bottom plate 7;
the preposed scale inhibition component 4 is sleeved on the outer side of the RO membrane component 5; the outer edge of the middle cover 3 is provided with a plurality of flow holes 31 for raw water to pass through, and the middle part of the middle cover 3 is provided with an avoidance hole 32 matched with the RO membrane assembly 5; a first blocking ring 33 extends downwards from the avoidance hole 32, and the upper end of the front scale inhibition assembly 4 is inserted outside the first blocking ring 33; the upper end of the preposed scale inhibition component 4 is connected with the bottom surface of the middle cover 3;
the upper end of the RO membrane assembly 5 passes through the avoiding hole 32, the water outlet end of the RO membrane assembly 5 is communicated with the water inlet end of the rear purification assembly 6, and the first blocking ring 33 is tightly attached to the outer wall of the RO membrane assembly 5;
the bottom plate 7 is arranged at the bottom of the shell 2, a first insertion groove 71 matched with the front scale inhibition component 4 is arranged on the top surface of the bottom plate 7, and the lower end of the front scale inhibition component 4 is inserted into the first insertion groove 71.
The outer wall of the preposed scale inhibition component 4 flows to the water inlet end of the preposed scale inhibition component 4, and the inner wall of the preposed scale inhibition component 4 flows to the water outlet end of the preposed scale inhibition component 4. Raw water flows into the inner wall of the preposed scale inhibition component 4 from the outer wall of the preposed scale inhibition component 4 and is primarily filtered; the preposed scale inhibition component 4 filters the raw water into primary filtered water.
Because the preposed scale inhibition component 4 is sleeved on the outer wall of the first blocking ring 33, a gap exists between the preposed scale inhibition component 4 and the RO membrane component 5, and primary filter water flows out of the inner wall of the preposed scale inhibition component 4 and then enters the gap. In a specific embodiment, the wastewater outlet end of the RO membrane module 5 is located on the top surface of the filter membrane structure 52, the pure water outlet end of the RO membrane module 5 is located at the upper end of the water collecting pipe 51 of the RO membrane module 5, and the water inlet end of the RO membrane module 5 is located at the lower end of the filter membrane structure 52; the primary filtered water enters the RO membrane module 5 from the water inlet end of the RO membrane module 5 and is subjected to reverse osmosis filtration; the RO membrane module 5 filters the primary filtered water into pure water, the pure water enters the post-purification module 6 through the water collecting pipe 51 and is filtered, and the upper cover 1 discharges the pure water filtered by the post-purification module 6 to the water path system.
The first blocking ring 33 is tightly attached to the outer wall of the RO membrane assembly 5, so that the problem of water cross caused by contact between the waste water above the middle cover 3 and the primary filtered water in the gap is avoided.
In the accommodation space of the composite filter element, the upper cover 1, the middle cover 3 and the bottom plate 7 are matched to fix the preposed scale inhibition component 4, and separate raw water outside the preposed scale inhibition component 4, primary filter water in a gap and wastewater generated by the RO membrane component 5, so that the phenomenon of water mixing is avoided. During production and assembly, workers can replace different primary filter materials and RO membrane assemblies 5 with different diameters according to requirements, and combine the primary filter materials and the RO membrane assemblies 5 with different diameters on the middle cover 3 and the bottom plate 7 with proper sizes; then the middle cover 3, the preposed scale inhibition component 4, the RO membrane component 5 and the bottom plate 7 are placed in the accommodating space; the compatibility of the upper cover 1 and the shell 2 in the composite filter element is improved, the RO membrane assemblies 5 with different primary filter materials and different diameters can share the same upper cover 1 and the shell 2, and the purpose of saving the number of molds of the upper cover 1 and the shell 2 can be achieved; and the upper cover 1 and the shell 2 do not need to be selected according to the sizes of the primary filter material and the RO membrane assembly 5, so that the assembly speed of the composite filter element is increased, and the production efficiency is increased.
Specifically, the middle cover 3 is further provided with a second blocking ring 34 outside the first blocking ring 33, the first blocking ring 33 and the second blocking ring 34 form a second insertion groove matched with the front scale inhibiting assembly 4, and the upper end of the front scale inhibiting assembly 4 is embedded into the second insertion groove.
The second inserting groove plays a role in fixing the front scale inhibition assembly 4, and meanwhile, raw water and primary filtered water can be prevented from contacting with the front scale inhibition assembly 4 through a gap between the first blocking ring 33 and the front scale inhibition assembly 4, so that the problem that the first blocking ring 33 is not tightly connected with the front scale inhibition assembly 4 to cause water mixing is avoided. In a specific embodiment, after the upper end of the front scale inhibition component 4 is embedded into the second insertion groove, the hot melt adhesive is used for bonding, and the lower end of the front scale inhibition component 4 is also bonded to the first insertion groove 71 through the hot melt adhesive, so that the waterproof effect can be achieved.
Preferably, the outer wall of the first blocking ring 33 is provided with a slope 331 inclined to one side of the RO membrane module 5, and a water stop is wound between the slope 331 and the outer wall of the RO membrane module 5.
By such arrangement, the sealing performance between the first blocking ring 33 and the front scale inhibition assembly 4 can be further enhanced, and the problem of water leakage caused by the fact that the second blocking ring 34 and the front scale inhibition assembly 4 are not tightly connected is avoided.
Further, the RO membrane module 5 comprises a water collecting pipe 51 and a filter membrane structure 52;
the filter membrane structure 52 is sleeved outside the water collecting pipe 51, and the inside of the filter membrane structure 52 is communicated with the side wall of the water collecting pipe 51;
the upper end of the water collecting pipe 51 is communicated with the water inlet end of the rear purification component 6, the lower end of the water collecting pipe 51 is inserted into the bottom plate 7, and a water blocking block for blocking the downward flow of pure water is arranged at the near end of the lower end of the water collecting pipe 51.
The primary filtered water enters from the bottom surface of the filter membrane structure 52 and is filtered into pure water; the primary filtered water is filtered into pure water, enters the water collecting pipe 51, and is discharged to the pure water outlet 11 through the water collecting pipe 51. The top surface of the filter membrane structure 52 is the wastewater outlet end of the RO membrane component 5, and wastewater generated in the primary filtering process is discharged from the bottom surface of the filter membrane structure 52.
The water shutoff block can prevent pure water from flowing out from the lower end of the water collection pipe 51, and avoid the problem of mixing of pure water and primary filtered water.
Furthermore, the bottom plate 7 is provided with a plurality of support ribs 72 inside the first inserting groove 71, the support ribs 72 are circumferentially arranged with the axis of the bottom plate 7 as the center, and the top surfaces of the support ribs 72 are abutted against the bottom surface of the filter membrane structure 52.
The support ribs 72 serve to support the filter membrane structure 52 so that there is sufficient space between the bottom surface of the filter membrane structure 52 and the bottom plate 7 to allow the primary filtered water to enter the RO membrane module 5 from the bottom surface of the filter membrane structure 52 for reverse osmosis filtration.
Specifically, a pure water outlet 11, a raw water inlet 12 and a wastewater outlet 13 are arranged on the outer side of the upper cover 1; the upper cover 1 is internally provided with a water baffle 14, a first water-proof ring 15 and a second water-proof ring 16 which are sequentially arranged from outside to inside;
the water baffle 14 is connected with the bottom surface of the second water-proof ring 16 to form a pure water channel; the rear purification component 6 is arranged in the pure water channel; the upper end of the water collecting pipe 51 penetrates through the water baffle 14 and is communicated with the water inlet end of the rear purification component 6; the pure water outlet 11 is communicated with the pure water channel;
the first water-proof ring 15 is tightly abutted to the top surface of the middle cover 3, and a raw water channel is formed in a space between the outer wall of the first water-proof ring 15, the inner wall of the upper cover 1, the flow hole 31, the outer wall of the front scale inhibition assembly 4 and the inner wall of the shell 2 and is communicated with the raw water inlet 12;
the space between the inner wall of the first water-proof ring 15, the outer wall of the second water-proof ring 16, the middle cover 3, the water baffle 14 and the outer wall of the RO membrane module 5 forms a wastewater channel; the waste water channel communicates with the waste water outlet 13.
The first water-proof ring 15, the second water-proof ring 16, the water baffle 14 and the middle cover 3 are matched with the preposed scale inhibition assembly 4 and the RO membrane assembly 5 to divide the accommodating space into a raw water channel, a gap, a pure water channel and a waste water channel. The device has the function of separating raw water, primary filtered water, pure water and waste water, thereby avoiding the phenomenon of water mixing.
Taking fig. 2 as an example, arrows in fig. 2 indicate the flow direction of water flow in the composite filter element, and raw water flows into the raw water channel from the raw water inlet 12 during normal water production; then, raw water passes through the outer wall of the preposed scale inhibition component 4 and is filtered into primary filtered water; the primary filtered water flows into the gap from the inner wall of the preposed scale inhibition component 4 and flows into the RO membrane component 5 from the bottom surface of the filter membrane structure 52; the RO membrane module 5 filters the primary filtered water into pure water and wastewater, the pure water enters the water collecting pipe 51 and then flows into the post-purification module 6 from the upper end of the water collecting pipe 51; pure water flows out of the outer wall of the post-purification component 6, enters a pure water channel and finally leaves the composite filter element through a pure water outlet 11; and wastewater flows from the top surface of the filter membrane structure 52 into the wastewater channel and exits the composite filter element through the wastewater outlet 13.
Optionally, leading dirty subassembly 4 includes a plurality of layers of folding PP cotton and carbon-point filter core, a plurality of layers the folding PP cotton wrap up in proper order in the outside of carbon-point filter core.
Staff can select the cotton number of piles of folding PP according to the demand, makes composite filter core realize 4 ~ 6 level filtering capability. Raw water is firstly filtered by the folded PP cotton and then filtered by the carbon rod filter element to remove particle impurities in the raw water, so that the purpose of descaling is achieved, the particle impurities are prevented from directly entering the RO membrane component 5, and the service life of the RO membrane component 5 is shortened.
Specifically, rearmounted purification component 6 is including folding PP cotton and carbon fiber filter core, folding PP cotton wrap up in proper order in carbon fiber filter core's the outside.
The carbon rod filter element generally adopts activated carbon, and the activated carbon is powdered or granular porous carbon subjected to activation treatment; the carbon fiber filter element uses fibrous activated carbon fiber, micropores are distributed on the activated carbon fiber, the adsorption capacity of the activated carbon fiber to organic gas is several times to dozens of times higher than that of granular activated carbon in the air, organic matters in pure water can be effectively removed, the taste of the pure water is improved, and the drinking experience of a user is enhanced.
The outside of the rear carbon fiber filter element is provided with the folding PP cotton, so that carbon powder can be effectively intercepted, and the phenomenon of 'black water' is avoided. The phenomenon of 'black water' refers to the phenomenon that carbon in the rear carbon fiber filter element is washed out by pure water, and carbon powder is mixed into the pure water and is discharged from the pure water outlet 11, so that the filtered pure water is black.
Preferably, the housing 2 is cylindrical, and the upper cover 1 is matched with the housing 2; the upper cover 1, the shell 2, the preposed scale inhibition component 4, the RO membrane component 5 and the postposition purification component 6 are coaxially arranged. The inside of the composite filter element adopts a central symmetry structure, so that the upper cover 1 and the shell 2 can be connected in a spin welding mode.
The utility model also provides a waterway system, waterway system uses foretell composite filter core.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a composite filter element, is applied to the waterway system of water purifier, its characterized in that: the composite filter element comprises an upper cover and a shell; the upper cover is arranged at the upper end of the shell and forms an accommodating space with the interior of the shell, and the composite filter element is communicated with a waterway system through the upper cover;
the accommodating space is internally provided with a middle cover, a front scale inhibition assembly, an RO membrane assembly, a rear purification assembly and a bottom plate;
the preposed scale inhibition component is sleeved on the outer side of the RO membrane component; the outer edge of the middle cover is provided with a plurality of flow holes for raw water to pass through, and the middle part of the middle cover is provided with avoidance holes matched with the RO membrane assembly; a first blocking ring extends downwards from the avoidance hole, and the upper end of the front scale inhibition assembly is inserted outside the first blocking ring; the upper end of the preposed scale inhibition component is connected with the bottom surface of the middle cover;
the upper end of the RO membrane assembly penetrates through the avoiding hole, the water outlet end of the RO membrane assembly is communicated with the water inlet end of the rear purification assembly, and the first blocking ring is tightly attached to the outer wall of the RO membrane assembly;
the bottom plate set up in the bottom of casing, the top surface of bottom plate be equipped with leading dirty subassembly looks adaptation's first inserting groove, leading dirty subassembly's lower extreme is pegged graft in first inserting groove.
2. A composite filter element according to claim 1, wherein: the middle cover is provided with a first blocking ring, the outer side of the first blocking ring is provided with a second blocking ring, the first blocking ring and the second blocking ring form a first inserting groove matched with the scale inhibition assembly, and the upper end of the scale inhibition assembly is embedded into the first inserting groove.
3. A composite filter element according to claim 2, wherein: the outer wall of the first blocking ring is provided with an inclined plane inclined towards one side of the RO membrane assembly, and a water stop belt is wound between the inclined plane and the outer wall of the RO membrane assembly.
4. A composite filter element according to claim 1, wherein: the RO membrane component comprises a water collecting pipe and a filter membrane structure;
the filter membrane structure is sleeved outside the water collecting pipe, and the interior of the filter membrane structure is communicated with the side wall of the water collecting pipe;
the upper end of the water collecting pipe is communicated with the water inlet end of the rear purification assembly, the lower end of the water collecting pipe is inserted into the bottom plate, and a water blocking block used for blocking the downward flow of the pure water is arranged at the proximal end of the lower end of the water collecting pipe.
5. A composite filter element according to claim 4, wherein: the bottom plate is provided with a plurality of support ribs on the inner side of the first insertion groove, the support ribs are circumferentially arranged by taking the axis of the bottom plate as the center, and the top surfaces of the support ribs are abutted against the bottom surface of the filter membrane structure.
6. A composite filter element according to claim 4, wherein: a pure water outlet, a raw water inlet and a wastewater outlet are formed in the outer side of the upper cover; the upper cover is internally provided with a water baffle, a first water-proof ring and a second water-proof ring which are sequentially arranged from outside to inside;
the water baffle is connected with the bottom surface of the second water-proof ring to form a pure water channel; the rear purification component is arranged in the pure water channel; the upper end of the water collecting pipe penetrates through the water baffle and is communicated with the water inlet end of the rear purification component; the pure water outlet is communicated with the pure water channel;
the first water isolating ring is tightly abutted against the top surface of the middle cover, a raw water channel is formed in a space between the outer wall of the first water isolating ring, the inner wall of the upper cover, the flow hole, the outer wall of the front scale inhibition assembly and the inner wall of the shell, and the raw water channel is communicated with the raw water inlet;
a waste water channel is formed in a space among the inner wall of the first water-proof ring, the outer wall of the second water-proof ring, the middle cover, the water baffle and the outer wall of the RO membrane assembly; the waste water channel is communicated with the waste water outlet.
7. A composite filter element according to claim 1, wherein: leading dirty subassembly of hindering includes a plurality of layers of folding PP cotton and carbon-point filter core, a plurality of layers folding PP cotton wrap up in proper order in the outside of carbon-point filter core.
8. A composite filter element according to claim 1, wherein: the rear purification assembly comprises a folding PP cotton and a carbon fiber filter element, and the folding PP cotton is sequentially wrapped on the outer side of the carbon fiber filter element.
9. A composite filter element according to claim 1, wherein: the shell is cylindrical, and the upper cover is matched with the shell; the upper cover, the shell, the preposed scale inhibition component, the RO membrane component and the postposition purification component are coaxially arranged.
10. A waterway system is characterized in that: the composite filter element of any one of claims 1-9 is used in the waterway system.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115353218A (en) * | 2022-10-19 | 2022-11-18 | 山东水利建设集团有限公司 | Filtration and degree of depth water purification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115353218A (en) * | 2022-10-19 | 2022-11-18 | 山东水利建设集团有限公司 | Filtration and degree of depth water purification system |
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