CN111115757A - RO filter element group spare and have its composite filter, water treatment facilities - Google Patents
RO filter element group spare and have its composite filter, water treatment facilities Download PDFInfo
- Publication number
- CN111115757A CN111115757A CN201811291602.1A CN201811291602A CN111115757A CN 111115757 A CN111115757 A CN 111115757A CN 201811291602 A CN201811291602 A CN 201811291602A CN 111115757 A CN111115757 A CN 111115757A
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- Prior art keywords
- filter
- water
- filter element
- pac
- cartridge assembly
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 36
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000001914 filtration Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 238000013329 compounding Methods 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 description 45
- 239000008213 purified water Substances 0.000 description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 32
- 239000008399 tap water Substances 0.000 description 17
- 235000020679 tap water Nutrition 0.000 description 17
- 238000000746 purification Methods 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses an RO filter element assembly, a composite filter element with the same and a water treatment device, wherein the RO filter element assembly comprises: the filter material installation cavity is limited in the central tube, a pure water through hole is formed in the wall of the central tube, the RO filter membrane is sleeved on the central tube, and the RO filter membrane covers the pure water through hole. According to the RO filter element assembly provided by the embodiment of the invention, the filter material installation cavity is defined in the central pipe, and the built-in filter material can be accommodated in the filter material installation cavity, so that convenience is provided for compounding of various filter elements, the internal space of the RO filter element assembly can be fully utilized, the overall volume of the composite filter element can be further reduced, and the filtering effect of the composite filter element can be improved.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to an RO filter element assembly, a composite filter element with the RO filter element assembly and a water treatment device with the RO filter element assembly.
Background
In the related art, the central tube of the RO cartridge assembly is used only for guiding pure water, and cannot accommodate other components, and the internal space of the central tube is inefficient to use.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the RO filter element assembly provided by the invention has the advantages that the volume of the composite filter element is smaller, and the occupied space is saved.
The invention also provides a composite filter element with the RO filter element assembly.
The invention also provides a water treatment device with the composite filter element.
An RO cartridge assembly in accordance with an embodiment of the first aspect of the present invention includes: the filter material installation cavity is limited in the central tube, a pure water through hole is formed in the wall of the central tube, the RO filter membrane is sleeved on the central tube, and the RO filter membrane covers the pure water through hole.
According to the RO filter element assembly provided by the embodiment of the invention, the filter material installation cavity is defined in the central pipe, and the built-in filter material can be accommodated in the filter material installation cavity, so that convenience is provided for compounding of various filter elements, the internal space of the RO filter element assembly can be fully utilized, the overall volume of the composite filter element can be further reduced, and the filtering effect of the composite filter element can be improved.
According to the RO filter element assembly of one embodiment of the invention, the diameter of the filter installation cavity is larger than 30 mm.
According to an embodiment of the RO cartridge assembly of the present invention, the RO filter membrane extends in the axial direction of the central tube.
According to one embodiment of the invention, the central tube comprises: the filter material mounting cavity comprises a coaming and a lower end cover, wherein the coaming is formed into a cylinder with two open ends, pure water through holes are formed in the coaming, an RO filter membrane is sleeved on the coaming, the lower end cover is arranged in the coaming and located at the lower part of the coaming, and the lower end cover seals the lower end of the coaming to limit the filter material mounting cavity.
According to one embodiment of the invention, a water guiding groove communicated with the pure water through hole is formed on the outer peripheral wall of the enclosing plate.
According to one embodiment of the invention, the chute extends in the circumferential direction of the shroud.
According to one embodiment of the invention, the water chute extends in the axial direction of the shroud.
According to one embodiment of the invention, the RO filter membrane is formed in a sheet shape wound around the shroud.
According to an embodiment of the invention, a jig clamping groove is formed on the lower end surface of the lower end cover, and the jig clamping groove is suitable for being matched with a jig to drive the central pipe to rotate and wind to form the RO filter membrane.
According to one embodiment of the invention, the inner wall of the shroud is provided with a support platform which projects inwardly in the radial direction of the shroud.
According to one embodiment of the invention, the coaming, the lower end cap and the support platform are integrally formed.
The composite filter element comprises a shell, the RO filter element assembly, an inner pipe and a built-in filter material, wherein the RO filter element assembly is detachably arranged in the filter material installation cavity, the inner pipe is arranged in the filter material installation cavity, and the built-in filter material is arranged in the inner pipe.
According to a third aspect of the invention, the water treatment device comprises the composite filter element.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a composite filter element according to an embodiment of the invention;
FIG. 2 is a schematic view of a partial configuration of a composite filter element according to an embodiment of the invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is an exploded view of the mechanism of FIG. 4;
FIG. 6 is an exploded view of a housing of a composite filter element according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of the mating of an inner tube and an activated carbon filter element according to an embodiment of the invention;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
FIG. 9 is a schematic structural view of an annular inner cap according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of an annular inner cap according to an embodiment of the present invention;
FIG. 11 is a top view of an annular inner cap according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a center tube according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of a center tube according to an embodiment of the present invention;
FIG. 14 is a side view of a base pipe according to an embodiment of the present invention;
fig. 15 is a schematic structural view of a waste plug according to an embodiment of the present invention.
Reference numerals:
100: a composite filter element;
10: a housing; 11: a barrel; 111: a tap water inlet; 112: a purified water outlet; 113: a purified water inlet; 114: a pure water outlet; 115: a waste water outlet; 12: a lower cover; 13: an adapter; 14: a waste water plug; 141: a plug end; 142: a guide section; 15: a decorative cover; 16: a handle.
20: an RO filter element assembly; 21: a central tube; 211: enclosing plates; 2111: a pure water through hole; 2112: a water chute; 212: a lower cover plate; 213: a support table; 22: an RO filter membrane; 23: an annular inner cover; 231: a waste water chamber; 232: a waste water port;
30: an inner tube;
40: a PAC filter element assembly; 41: a PAC skeleton; 42: a PAC filter membrane; 43: a PAC upper end cap; 44: a PAC lower end cap;
50: an activated carbon filter element; 51: a first purified water chamber; 52: a pure water chamber; 521: a water outlet cavity; 522: an original pure water cavity; 53: a tap water chamber; 54: a second purified water cavity;
60: and (5) discharging a water pipe.
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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An RO cartridge assembly 20 and a composite cartridge 100 having the same, a water treatment apparatus according to an embodiment of the present invention will be described with reference to fig. 1 to 15.
As shown in fig. 1-4, according to one embodiment of the present invention, the RO cartridge assembly 20 comprises: a central tube 21 and an RO membrane 22.
Specifically, the central tube 21 is formed into a tubular shape with one open end, a filter material installation cavity is defined in the central tube 21, the diameter of the filter material installation cavity is larger than 30mm, the RO filter membrane 22 is sleeved on the central tube 21, and the RO filter membrane 22 covers the pure water through hole 2111.
Through set up the filter media installation cavity in center tube 21, can assemble the filter media that is fit for in the filter media installation cavity, the outer RO filter membrane 22 of filter media cooperation center tube 21 in the filter media installation cavity can promote the rivers filter effect of RO filter membrane 22 and filter media.
Wherein, the wall of the central tube 21 is formed with pure water through holes 2111, the pure water through holes 2111 penetrate the wall of the central tube 21 in the thickness direction of the wall of the central tube 21, and the water flow filtered by the RO membrane 22 flows out through the pure water through holes 2111 of the central tube 21, with small water flow resistance.
Therefore, according to the RO filter element assembly 20 of the embodiment of the present invention, by defining the filter material installation cavity in the central tube 21, the built-in filter material can be accommodated in the filter material installation cavity, so as to provide convenience for compounding of various filter elements, and the internal space of the RO filter element assembly 20 can be fully utilized, so that the overall volume of the composite filter element 100 can be reduced, and the filtering effect of the composite filter element 100 can be improved.
In this embodiment, the RO filter membrane 22 extends along the axial direction of the central tube 21, and the RO filter membrane 22 extending along the axial direction of the central tube 21 can increase the membrane area of the RO filter membrane 22, thereby improving the filtering capacity and filtering effect of the RO filter membrane 22.
As shown in fig. 12 to 14, in the present embodiment, the center pipe 21 includes: the filter material comprises a coaming 211 and a lower end cover 212, wherein the coaming 211 is formed into a cylinder with two open ends, pure water through holes 2111 are formed in the coaming 211, the RO filter membrane 22 is sleeved on the coaming 211, the lower end cover 212 is arranged in the coaming 211 and located at the lower part of the coaming 211, and the lower end cover 212 closes the lower end opening of the coaming 211 and is matched with the coaming 211 to define a filter material installation cavity. That is, the center tube 21 is formed in a cylindrical shape having an open upper end and a closed lower end.
In the center tube 21 of above-mentioned structure, the lower extreme of filter media installation cavity is sealed, and when the filter media assembly was in the filter media installation cavity, sealed effectual prevents that rivers from the lower extreme of center tube 21 from flowing out. And simple structure, convenient assembling, manufacturing cost is lower.
As shown in fig. 12, a water guide groove 2112 communicating with the deionized water passage 2111 is formed in the outer peripheral wall of the shroud 211, the water guide groove 2112 is recessed inward with respect to the outer peripheral wall of the shroud 211, and the water filtered by the RO filter membrane 22 flows into the deionized water passage 2111 through the water guide groove 2112, is collected in the filter medium installation chamber, and is then discharged.
Because RO filter membrane 22 is around establishing on bounding wall 211, through set up guiding gutter 2112 on bounding wall 211, can increase the flow efficiency of leading out rivers in the RO filter membrane 22, increase RO filter membrane 22's play water efficiency, and then can promote RO filter element group spare 20's water purification efficiency.
As shown in fig. 12, the water chute 2112 extends along the circumferential direction of the surrounding plate 211, that is, the water chute 2112 is formed into a ring shape extending along the circumferential direction of the surrounding plate 211, and the pure water through holes 2111 are provided in the water chute 2112, so that the length of the water chute 2112 can be further increased, the water outlet efficiency of the RO filter membrane 22 is further improved, the uniform water outlet efficiency of the RO filter membrane 22 in the circumferential direction can be ensured, and the influence of the partial water outlet on the water purification efficiency of the RO filter membrane 22 due to the obstruction of the water outlet can be prevented.
As shown in fig. 12, the water guide grooves 2112 may extend in the axial direction of the shroud 211, the deionized water passage holes 2111 may be provided at intervals in the axial direction of the shroud 211, and the water guide grooves 2112 may communicate with the deionized water passage holes 2111 in sequence.
In some embodiments, the water guide grooves 2112 are multiple, a part of the water guide grooves 2112 extends along the circumferential direction of the enclosing plate 211, multiple water guide grooves 2111 are arranged at intervals along the axial direction of the enclosing plate 211, the part of the water guide grooves 2112 extends along the axial direction of the enclosing plate 211, the water guide grooves 2112 extending along the axial direction of the enclosing plate 211 are sequentially communicated with the water guide grooves 2111 extending along the circumferential direction of the enclosing plate 211, and the water guide grooves 2111 are formed into a water guide net arranged on the outer circumferential wall of the enclosing plate 211. The pure water through holes 2111 may be provided at intersections of the water guide grooves 2112 extending in the axial direction of the shroud 211 and the water guide grooves 2112 extending in the circumferential direction of the shroud 211.
As shown in fig. 13, in the present embodiment, the inner wall of the shroud 211 is formed with a support base 213 protruding inward in the radial direction of the shroud 211, the support base 213 has an upper surface, and the lower end of the filter medium can be stopped against the upper surface of the support base 213.
Through set up the brace table 213 with inner tube 30 complex on bounding wall 211, can provide convenience for the assembly of built-in filter media, the assembly stability of inner tube 30 can be promoted to the supporting role of brace table 213 to the filter media.
Further, the support table 213 extends in the circumferential direction of the shroud 211, that is, the support table 213 is formed in a ring shape extending in the circumferential direction of the shroud 211, and the support table 213 may also be formed in a tubular shape extending in the axial direction of the shroud 211, and the lower end of the support table 213 abuts against the upper surface of the lower end cover 212 of the center tube 21.
The tubular support 213 can improve the uniformity of the stress on the filter material, and prevent the filter material from being damaged or inclined due to uneven local stress in the filter material installation cavity. Wherein, the support platform 213, bounding wall 211 and lower extreme cover 212 integrated into one piece, that is to say that the center tube 21 is integrated into one piece, integrated into one piece's center tube 21 can promote support platform 213, the stability of being connected and joint strength between bounding wall 211 and the lower extreme cover 212, and then can promote the functional stability and the reliability of center tube 21, and can eliminate support platform 213, the coupling mechanism between bounding wall 211 and the lower extreme cover 212, the assembly efficiency of center tube 21 and composite filter element 100 has been promoted, and integrated into one piece's center tube 21's intensity is big, long service life.
In this embodiment, the RO filter membrane 22 is formed into a sheet shape wound on the surrounding plate 211, wherein the RO filter membrane 22 is formed into a strip shape with a certain width, the strip RO filter membrane 22 is wound on the surrounding plate 211, the area of the strip RO filter membrane 22 affects the filtering effect of the RO filter element assembly 20, and the RO filter membrane 22 is wound on the surrounding plate 211, so that the occupied space is small, and convenience can be provided for water flow to pass through the RO filter membrane 22.
As shown in fig. 14, in the present embodiment, a jig locking groove is formed on the lower end surface of the lower end cap 212, and the jig locking groove is adapted to cooperate with the jig driving central tube 21 to rotate and wind the RO filter membrane 22. The process of winding the RO filter membrane 22 around the center tube 21 generally prevents the center tube 21 from being rotated on the rotating mechanism, and the RO filter membrane 22 is wound by rotating the center tube 21, thereby improving the production efficiency of the RO filter core assembly 20 and facilitating the operation.
Wherein, the lower surface of lower end cover 212 is equipped with the tool draw-in groove, and the tool of rotatory center tube 21 can be motor class mechanism, can set up on the motor shaft of motor with the buckle of tool draw-in groove adaptation, buckle and the cooperation of tool draw-in groove can prevent that tool drive center tube 21 from taking place relative dislocation when rotatory, and then can promote the tension when convoluteing RO filter membrane 22 of center tube 21, can promote the quality of RO filter membrane 22.
As shown in FIG. 1, in this embodiment, the RO cartridge assembly 20 further includes an annular inner cover 23, the lower surface of which annular inner cover 23 sealingly abuts the upper end face of the RO filter membrane 22.
Further, as shown in fig. 9 to 11, an annular groove with an open lower surface is formed at the bottom of the annular inner lid 23, the annular groove extends along the circumferential direction of the RO filter membrane 22, the annular groove is closed by the upper end surface of the RO filter membrane 22 to define a waste water chamber 231, a waste water port 232 communicating with the waste water outlet 115 is formed on the annular inner lid 23, and a waste water passage communicating the waste water chamber 231 with the waste water port 232 is defined in the annular inner lid 23.
The RO membrane 22 separates the wastewater during the filtration process, and the wastewater can be guided to be discharged by arranging the wastewater outlet 115, the wastewater chamber 231 and the wastewater channel.
The waste water chamber 231 is defined on the annular inner cover 23, so that the waste water can be prevented from being mixed into the first purified water chamber 51, the pure water chamber 52, the tap water chamber 53 and the second purified water chamber 54, and the quality of the filtered water flow can be improved. And RO filter element group spare 20's waste water is followed RO filter element group spare 20's tip and is discharged, inject waste water chamber 231 on annular inner cup 23, can provide convenience for waste water gets into waste water chamber 231, and simple structure has eliminated the water conservancy diversion passageway between RO filter element group spare 20 and the waste water chamber 231 moreover, has simplified composite filter element 100's structural design and water route design.
A composite filter cartridge 100 according to an embodiment of the second aspect of the present invention comprises a housing 10, an RO cartridge assembly 20 according to the above-described embodiments, an inner tube 30, and a built-in filter, the RO cartridge assembly 20 being disposed within the housing 10, the inner tube 30 being removably disposed within a filter mounting cavity, and the built-in filter being disposed within the inner tube 30.
Specifically, a filter cavity is defined in the housing 10, a central tube 21 is arranged in the filter cavity, the RO filter membrane 22 is wound on the central tube 21, a filter material installation cavity is defined in the central tube 21, an inner tube 30 is arranged in the filter material installation cavity, a built-in filter material is arranged in the inner tube 30, the built-in filter material can be a PAC filter element assembly 40,
wherein, inner tube 30 will be can become inner chamber and exocoel with the filter media installation cavity interval, RO filter element group spare 20 is constituteed to center tube 21 and RO filter membrane 22, RO filter element group spare 20 is established at the exocoel, PAC filter element group spare 40 is established at the endocoel, because one side of built-in filter media installation cavity is opened, thereby rivers not only can pass PAC filter element group spare 40 through PAC filter element group spare 40's filtration, can also get into the inner chamber through the opening of built-in filter media installation cavity, and through PAC filter element group spare 40's filtering action.
Therefore, according to the composite filter element 100 of the embodiment of the present invention, the PAC filter element assembly 40 is disposed in the inner tube 30, and the inner tube 30 is disposed in the RO filter element assembly 20, that is, the RO filter element assembly 20, the inner tube 30, and the PAC filter element assembly 40 are sequentially nested, so that the space in the RO filter element assembly 20 can be fully utilized, and the RO filter element assembly 20 and the PAC filter element assembly 40 are spaced and combined in the housing 10 by using the inner tube 30, which not only improves the filtering effect of the composite filter element 100, but also saves the occupied space of the RO filter element assembly 20 and the PAC filter element assembly 40 because the space originally accommodating one filter element can accommodate two filter tubes.
As shown in fig. 1 and 3, according to the composite filter element 100 of an embodiment of the present invention, a tap water inlet 111, a purified water outlet 112, a purified water inlet 113, and a purified water outlet 114 are provided on the housing 10, wherein the tap water inlet 111 and the purified water outlet 112 are communicated with the built-in filter material installation cavity.
The outer wall of the RO filter membrane 22 and the inner wall of the housing 10 define a first purified water chamber 51 communicating with the purified water inlet 113, the inner wall of the center tube 21 and the outer wall of the inner tube 30 define a purified water chamber 52 communicating with the purified water outlet 114, the inner wall of the inner tube 30 and the outer wall of the PAC filter cartridge assembly 40 define a tap water chamber 53 communicating with the tap water inlet 111, and the PAC filter cartridge assembly 40 defines a second purified water chamber 54 communicating with the purified water outlet 112.
Water flow enters the tap water cavity 53 through the tap water inlet 111, water flow in the tap water cavity 53 enters the second purified water cavity 54 through the filtering action of the PAC filter element assembly 40 and flows out through the purified water outlet 112, the flowing purified water enters the first purified water cavity 51 through the purified water inlet 113 through the action of the booster pump, water flow in the first purified water cavity 51 enters the purified water cavity 52 through the filtering action of the RO filter element assembly 20, and water flow in the purified water cavity 52 flows out through the purified water outlet 114 for a user to drink.
Wherein, the gap between the inner wall of the housing 10 and the outer wall of the RO filter element assembly 20 is 1.2mm, the gap between the inner wall of the RO filter element assembly 20 and the outer wall of the inner tube 30 is 1.2mm, and the gap between the inner wall of the inner tube 30 and the outer wall of the PAC filter element assembly 40 is 1.2 mm. Therefore, normal passing of water flow can be guaranteed, the volumes of the RO filter element assembly 20 and the shell 10 can be reduced, and the space utilization efficiency is improved.
Moreover, utilize the cooperation of the inner wall of casing 10, the inner wall of RO filter element subassembly 20, the outer wall of RO filter element subassembly 20, the inner wall of inner tube 30, the outer wall of inner tube 30 and the outer wall of PAC filter element subassembly 40 to prescribe a limit to first water purification chamber 51, second water purification chamber 54, running water chamber 53 and pure water chamber 52, simple structure realizes easily, is favorable to simplifying the structural design of composite filter element 100, can reduce composite filter element 100's manufacturing cost moreover.
As shown, in the present embodiment, the built-in filter is a PAC filter assembly 40, and as shown in fig. 3, the PAC filter assembly 40 includes: PAC skeleton 41 and PAC filter membrane 42, PAC skeleton 41 is located inner tube 30 and extends along the axial of inner tube 30, and PAC skeleton 41 cover is established on outlet pipe 60, and PAC filter membrane 42 cover is established on PAC skeleton 41 and extends along the axial of PAC skeleton 41, and PAC filter membrane 42 is the tubulose filter piece that polymerized aluminium chloride material made, and PAC filter membrane 42's thickness is greater than 10 mm.
Wherein, PAC skeleton 41 is internal to define second clear water chamber 54, and PAC filter membrane 42 outer wall and the inner wall of inner tube 30 define the running water chamber 53, and the running water passes through running water inlet 111 and gets into running water chamber 53, and the rivers are crossed PAC filter membrane 42 and are flowed out from the inner wall of PAC skeleton 41 and get into second clear water chamber 54 through the filtration of PAC filter membrane 42, then flow out from clear water outlet 112.
Because the filter effect of PAC filter membrane 42 is related to the thickness that water current passed PAC filter membrane 42, consequently constitute the second filter core and establish in inner tube 30 with PAC filter membrane 42 and PAC skeleton 41, reduced the diameter of second filter core, and then can reduce the occupation space of second filter core, can reduce PAC filter membrane 42's volume and production material moreover, be favorable to reduce cost.
As shown in fig. 3, in this embodiment, the second filter element further includes: PAC upper end lid 43 and PAC lower end lid 44, PAC upper end lid 43 cover is established at PAC skeleton 41's upper end, and PAC upper end lid 43's lower surface seals the up end of propping up PAC filter membrane 42, and PAC lower end lid 44 cover is established at PAC skeleton 41's lower extreme, and PAC lower end lid 44's upper surface seals the lower terminal surface of propping up PAC filter membrane 42. And outlet pipe 60 passes through PAC upper end cover 43 and PAC lower end cover 44, and the inner peripheral edge of PAC lower end cover 44 is in sealing fit with the outer peripheral wall of outlet pipe 60, and the outer peripheral edge of PAC lower end cover 44 is in sealing fit with the inner peripheral wall of inner tube 30.
Through setting up PAC upper end cover 43 and PAC lower extreme lid 44, can promote PAC filter membrane 42 upper end and the leakproofness of lower extreme, prevent that the rivers in the PAC filter membrane 42 from flowing out from PAC filter membrane 42's upper end or lower extreme, not only can prevent that rivers from getting into out the water cavity 521 along the outer wall of outlet pipe 60, can promote the leakproofness of running water cavity 53 moreover.
As shown in fig. 4, in this embodiment, the PAC upper end cover 43 has an upper flange formed along the outer periphery thereof and folded downward, the inner wall of the upper flange abuts against the outer peripheral wall of the PAC filter 42, and the outer wall of the upper flange and the inner wall of the inner tube 30 define a tap water passage through which water flows from the tap water inlet 111 into the tap water chamber 53.
The outer periphery of the PAC lower end cover 44 is formed with a downward flanging which is turned upwards, the inner wall of the downward flanging is abutted against the outer peripheral wall of the PAC filter membrane 42, and the outer wall of the downward flanging is sealed and abutted against the inner peripheral wall of the inner tube 30.
Therefore, the performance of the second filter element can be improved, the tightness and the reliability of the tap water cavity 53 can be improved, and water leakage can be prevented.
Further, PAC skeleton 41 is tubular, and a plurality of holes penetrating through a wall of PAC skeleton 41 in a thickness direction of the wall of PAC skeleton 41 are formed on the wall of PAC skeleton 41. By arranging the holes on the wall of the PAC framework 41, the water flow in the PAC filter membrane 42 can be promoted to pass through the holes and enter the second water purifying cavity 54, and the PAC framework 41 is sleeved on the water outlet pipe 60, so that the occupied space of the water outlet pipe 60 can be further saved, and the volume of the composite filter element 100 can be further reduced.
According to an embodiment of the present invention, further comprising: the active carbon filter element 50 is arranged in the central tube 21 and is in sealing butt joint between the lower end of the inner tube 30 and the bottom wall of the filter material installation cavity, the active carbon filter element 50 is arranged in the pure water cavity 52, and the active carbon filter element 50 divides the pure water cavity 52 into a raw pure water cavity 522 positioned outside the active carbon filter element 50 and a water outlet cavity 521 positioned in the active carbon filter element 50. PAC skeleton 41 is tubular, and outlet pipe 60 runs through PAC skeleton 41 along PAC skeleton 41's axial, and PAC skeleton 41 is the cover established on outlet pipe 60 that is to say, defines second water purification chamber 54 between the outer wall of outlet pipe 60 and the inner wall of PAC skeleton 41. One end (the lower end shown in fig. 3) of the water outlet pipe 60 is communicated with the water outlet cavity 521, and the other end (the upper end shown in fig. 3) of the water outlet pipe 60 is communicated with the pure water outlet 114.
That is, the pure water filtered by the RO filter element assembly 20 enters the original pure water chamber 522, the water in the original pure water chamber 522 passes through the activated carbon filter element 50, and enters the water outlet chamber 521 through the filtering action of the activated carbon filter element 50, so that the impurities or the peculiar smell in the water can be further clarified. The water after RO filter element group spare 20 filters becomes the faintly acid, and the taste is relatively poor, is unsuitable for the user to directly drink, through the filtering action of live heart carbon filter core, can further promote the quality of pure water, has promoted the taste of drinking water.
In this embodiment, the activated carbon filter element 50 and the inner tube 30 are arranged along the axial direction of the filter material installation cavity, the activated carbon filter element 50 is arranged at the bottom of the built-in filter material installation cavity, and the inner tube 30 is arranged at the top of the activated carbon filter element 50. Along the active carbon filter core 50 and the inner tube 30 of RO filter element group spare 20's axial arrangement, the space of the built-in filter media installation cavity of make full use of can be favorable to dwindling the internal diameter of built-in filter media installation cavity, and then can reduce the diameter and the volume of RO filter element group spare 20, the active carbon filter core 50 and the inner tube 30 simple structure of above-mentioned structure moreover, convenient assembling.
The pure water outlet 114 is located above the inner tube 30, the water outlet cavity 521 is located in the activated carbon filter element 50 and below the inner tube 30, and by arranging the water outlet tube 60, convenience can be provided for the water flow in the water outlet cavity 521 to flow out from the pure water outlet 114, and the water outlet tube 60 is simple in structure and easy to implement.
Moreover, the activated carbon filter element 50 is arranged in the pure water cavity 52, so that the compounding degree of the composite filter element 100 can be further improved, the filtering effect of the composite filter element 100 on water flow is improved, and compared with the independent arrangement of the activated carbon filter element 50, the water flow design of the composite filter element 100 can be simplified, and the volume of the composite filter element 100 can be reduced.
In the present embodiment, the central axis of the center tube 21, the central axis of the PAC filter assembly 40, the central axis of the inner tube 30, and the central axis of the water outlet pipe 60 coincide with the central axis of the casing 10. That is to say, outlet pipe 60, PAC filter element group spare 40, inner tube 30, RO filter element group spare 20 and casing 10 are nested in proper order and set up, can reduce outlet pipe 60 from this, the occupation space of second filter core, inner tube 30 and RO filter element group spare 20, have promoted composite filter element 100 inner space's utilization efficiency, and then can reduce the volume of casing 10, provide convenience for composite filter element 100's use and assembly.
As shown in fig. 6, according to an embodiment of the present invention, the housing 10 includes a cylindrical body 11 and a lower cover 12, the bottom of the cylindrical body 11 is open, the RO filter cartridge assembly 20 is disposed in the cylindrical body 11, the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the purified water outlet 114 are disposed at the top of the cylindrical body 11, the lower cover 12 is connected to the cylindrical body 11 to close the open mouth of the cylindrical body 11, the upper surface of the lower cover 12 is in sealing contact with the lower end surface of the RO filter cartridge assembly 20, the annular inner cover 23 is disposed at the top of the inner cavity of the cylindrical body 11, and the lower surface of the annular inner cover 23 is in contact with the upper end.
Wherein, still be equipped with four adapter 13 on the casing 10, four adapter 13 pegging graft in running water entry 111, water purification export 112, water purification entry 113 and pure water export 114 one-to-one, provide convenience for composite filter 100 assembles the water route through setting up adapter 13, promoted the leakproofness in water route moreover.
The waste water outlet 115 is provided with a waste water plug 14, the waste water plug 114 is inserted into the waste water outlet 115, the waste water plug 14 generates certain resistance to water in the waste water cavity 231, when the water pressure in the waste water cavity 231 reaches a preset pressure value, the waste water plug 14 is conducted, and waste water is discharged from the waste water cavity 231.
In the present embodiment, the waste plug 14 includes: a sleeve inserted in the waste water outlet 115 and connected to the housing, and a plurality of capillaries formed on an inner wall of the sleeve and extending radially inward of the sleeve.
The number of the capillaries is large, the capillaries are arranged along the circumferential direction of the sleeve to form a capillary group, and the capillary group is filled in the sleeve along the axial direction of the sleeve. The waste water stopper of above-mentioned structure, simple structure, easy preparation can effectively promote the water purification effect of RO filter core moreover.
As shown in fig. 15, in the present embodiment, the grommet includes: the waste water treatment device comprises an insertion section 141 and a guide section 142, wherein one end of the insertion section 141 is inserted into the waste water outlet 115, the insertion section 141 extends along the axial direction of the waste water outlet 115, and the guide section 142 is communicated with the other end of the insertion section 141. Capillaries are arranged in the insertion section 141 and the guide section 142, or the capillaries can be arranged only in the insertion section 141 or the guide section 142.
The sleeve pipe of above-mentioned structure not only can increase the water pressure in waste water chamber 231, and grafting section 141 pegs graft in waste water outlet 115 moreover, and stability and leakproofness are better, and direction section 142 is suitable for intercommunication waste water outlet 1115 and waste water drainage pipe, and wherein, direction section 142 perpendicular to grafting section 141 makes things convenient for waste water drainage pipe to connect direction section 142, can provide convenience for waste water discharges.
Wherein, still be equipped with decorative cover 15 on the casing 10, decorative cover 15 covers the top of establishing at barrel 11, and running water inlet 111, water purification export 112, water purification entry 113, pure water export 114 and waste water export 115 all cover and establish in decorative cover 15, have promoted the outward appearance regularity of composite filter element 100 from this.
In this embodiment, the top of barrel 11 still is equipped with handle 16, is equipped with the first tie point and the second tie point of spaced apart arrangement on the lateral wall of barrel 11, and first tie point is connected to the one end of handle 16, and the second tie point is connected to the other end, and when demolising or assembling composite filter element 100, the user gets through promoting 16 and puts composite filter element 100, convenient operation, and stability is strong, and handle 16 simple structure realizes easily moreover.
As shown in fig. 5, in the assembly process of the composite filter element 100, the RO filter membrane 22 is wound on the central tube 21, the activated carbon filter element 50 is arranged in the built-in filter material installation cavity, the inner tube 30 is assembled in the built-in filter material installation cavity, the lower end of the inner tube 30 abuts against the activated carbon filter element 50, the water outlet tube 60 is inserted into the inner tube 30, the PAC filter element assembly 40 is sleeved on the water outlet tube 60, the annular inner cover 23 is covered on the central tube 21, and the water outlet tube 60 and the PAC annular upper end cover extend out of the middle of the annular inner cover 23. Then inserting the RO filter element assembly 20 into the cylinder body 11, wherein a first water channel, a second water channel, a third water channel, a fourth water channel and a fifth water channel are arranged on the top wall of the cavity of the cylinder body 11, the first water channel is communicated with a pure water outlet 114 and a water outlet pipe 60, one end of the second water channel is communicated with a tap water inlet 111, and the other end of the second water channel is communicated with a channel between the outer peripheral wall of the PAC annular upper end cover and the inner peripheral wall of the annular inner cover 23; one end of the third water channel is communicated with the purified water outlet 112, the other end of the third water channel is communicated with a channel between the inner peripheral wall of the PAC annular upper end cover and the outer peripheral wall of the water outlet pipe 60, one end of the fourth water channel is communicated with the purified water inlet 113, the other end of the fourth water channel is communicated with a channel between the outer peripheral wall of the RO filter membrane 22 and the inner peripheral wall of the cylinder body 11, and the fifth water channel is communicated with the wastewater outlet 115 and.
The water treatment apparatus according to the third embodiment of the present invention includes the composite filter element 100, the booster pump, and the tank described in the above embodiments.
Specifically, the box body is provided with a water supply device, a water outlet and a water outlet, the composite filter element 100 and the booster pump are arranged in the box body, the water supply device is communicated with a tap water inlet 111 to supply water for the water treatment device, the booster pump is communicated between a purified water outlet 112 and a purified water inlet 113 and is used for pumping the water flowing out of the second purified water cavity 54 into the first purified water cavity 51 after being pressurized, the water outlet is communicated with a purified water outlet 114 to supply water for a user, and the water outlet is communicated with a wastewater outlet 115 to discharge.
According to the water treatment device of the third aspect of the present invention, including the composite filter element 100 described in the above embodiment, by using the composite filter element 100 in the above embodiment, the volume of the water treatment device can be reduced, the occupied space can be saved, the effluent quality can be improved, and convenience is provided for users.
Other constructions and operations of water treatment devices according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. An RO filter cartridge assembly, comprising:
the filter material installation cavity is defined in the central pipe, and a pure water through hole is formed in the wall of the central pipe;
and the RO filter membrane is sleeved on the central tube and covers the pure water through hole.
2. An RO filter assembly according to claim 1 in which the diameter of the filter mounting cavity is greater than 30 mm.
3. An RO filter cartridge assembly according to claim 1 in which the RO filter membrane extends in the axial direction of the central tube.
4. An RO filter cartridge assembly according to claim 1 wherein the central tube comprises:
the coaming is in a cylindrical shape with two open ends, the pure water through hole is formed in the coaming, and the RO filter membrane is sleeved on the coaming;
the lower end cover is arranged in the enclosing plate and located at the lower part of the enclosing plate, and the lower end cover seals the lower end of the enclosing plate to limit the filter material installation cavity.
5. An RO cartridge assembly according to claim 4, wherein the peripheral wall of the shroud is formed with a water chute communicating with the pure water through-holes.
6. A RO cartridge assembly according to claim 5, characterized in that the water chute extends circumferentially of the shroud.
7. A RO cartridge assembly according to claim 5, characterized in that the water chute extends in the axial direction of the shroud.
8. The RO cartridge assembly of claim 4, wherein the RO filter membrane is formed as a sheet wrapped around the shroud.
9. The RO filter assembly of claim 4, wherein the lower end surface of the lower end cap is formed with a jig locking groove adapted to cooperate with a jig to drive the central tube to rotate around the RO filter membrane.
10. An RO cartridge assembly according to claim 4, wherein the inner wall of the shroud is provided with support platforms projecting radially inwardly of the shroud.
11. An RO filter cartridge assembly according to claim 10 wherein the shroud, the lower end cap and the support platform are integrally formed.
12. A composite filter element, comprising:
a housing;
the RO filter cartridge assembly of any one of claims 1 to 11, disposed within the housing;
the inner pipe is detachably arranged in the filter material mounting cavity;
the built-in filter material is arranged in the inner pipe.
13. A water treatment device comprising the composite filter element of claim 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291602.1A CN111115757A (en) | 2018-10-31 | 2018-10-31 | RO filter element group spare and have its composite filter, water treatment facilities |
| PCT/CN2019/114558 WO2020088560A1 (en) | 2018-10-31 | 2019-10-31 | Ro filter element assembly, composite filter element having same, and water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291602.1A CN111115757A (en) | 2018-10-31 | 2018-10-31 | RO filter element group spare and have its composite filter, water treatment facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111115757A true CN111115757A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811291602.1A Pending CN111115757A (en) | 2018-10-31 | 2018-10-31 | RO filter element group spare and have its composite filter, water treatment facilities |
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| Country | Link |
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| CN (1) | CN111115757A (en) |
Cited By (2)
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| CN114159880A (en) * | 2021-06-03 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Leading filter core of composite filter core and composite filter core that has it |
| CN114159881A (en) * | 2021-06-03 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Leading filter core of composite filter core and composite filter core that has it |
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