CN111115872B - Composite filter element and water treatment device with same - Google Patents
Composite filter element and water treatment device with same Download PDFInfo
- Publication number
- CN111115872B CN111115872B CN201811290069.7A CN201811290069A CN111115872B CN 111115872 B CN111115872 B CN 111115872B CN 201811290069 A CN201811290069 A CN 201811290069A CN 111115872 B CN111115872 B CN 111115872B
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- filter element
- water
- pac
- tube
- water outlet
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a composite filter element and a water treatment device with the same, wherein the composite filter element comprises: the RO filter core assembly is arranged in the shell, a waste water cavity communicated with the waste water port is limited between the RO filter core assembly and the shell, the inner tube is arranged in the RO filter core assembly, the second filter tube is arranged in the inner tube, and the waste water plug is inserted in the waste water port. According to the composite filter element disclosed by the embodiment of the invention, the waste water plug is arranged on the waste water port, so that the pressure of the waste water cavity is improved by utilizing the waste water plug, the filtering effect of the RO filter element assembly can be further improved, and the waste water plug is arranged on the shell, so that when the composite filter element reaches the service cycle to be replaced, the waste water plug is replaced together, the regular replacement of the waste water plug on the composite filter element is ensured, and the long-term non-replacement of the waste water plug and the damage to the normal work of the composite filter element are prevented.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a composite filter element and a water treatment device with the same.
Background
In order to improve the filtering effect of the RO filter element assembly, a waste water valve is arranged on a water outlet pipeline of the water treatment device, and the working pressure of the RO filter element assembly is increased by utilizing the waste water valve, so that the water purification effect can be improved. The waste water valve in the related art is arranged on the shell of the water treatment device at intervals with the RO filter element assembly, and the normal use of the RO filter element assembly is easily affected when the waste water valve is used for a long time to break down.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art.
Therefore, the invention provides the composite filter element, wherein the composite filter element is provided with the waste water plug, and the waste water plug is replaced simultaneously in the replacement process of the composite filter element, so that the normal use of the composite filter element is prevented from being influenced by the failure of the waste water plug.
The invention also provides a water treatment device with the composite filter element.
An embodiment of a composite filter cartridge according to the first aspect of the invention comprises: the RO filter core assembly is arranged in the shell, a waste water cavity which is communicated with the waste water port is defined between the RO filter core assembly and the shell, the inner tube is arranged in the RO filter core assembly, the second filter tube is arranged in the inner tube, and the waste water plug is inserted in the waste water port.
According to the composite filter element disclosed by the embodiment of the invention, the waste water plug is arranged on the waste water port, so that the pressure of the waste water cavity is improved by utilizing the waste water plug, the filtering effect of the RO filter element assembly can be further improved, and the waste water plug is arranged on the shell, so that when the composite filter element reaches the service cycle to be replaced, the waste water plug is replaced together, the regular replacement of the waste water plug on the composite filter element is ensured, and the long-term non-replacement of the waste water plug and the damage to the normal work of the composite filter element are prevented. And the waste water plug is arranged on the shell, so that convenience is provided for replacement of the waste water plug, and the difficulty of a replacement process of the waste water plug is reduced.
According to the composite filter element of one embodiment of the invention, the waste water plug is integrally formed with the housing.
According to one embodiment of the present invention, the composite filter cartridge, the waste water plug comprises: the casing is inserted into the waste water port and connected with the shell, and the capillary tubes are arranged on the inner wall of the casing and extend inwards along the radial direction of the casing.
According to one embodiment of the invention, the sleeve comprises: the device comprises a waste water port, a plugging section and a guiding section, wherein the plugging section is plugged in the waste water port and extends along the axial direction of the waste water port, and the guiding section is communicated with the plugging section.
According to one embodiment of the invention, the capillary tube is arranged in the plug-in section, the radial inner end of the capillary tube is matched with the guide section to define a guide channel, and a water guide column extending along the axial direction of the guide section is arranged in the guide section and seals the guide channel.
According to one embodiment of the invention, the guide section is perpendicular to the plug section.
According to the composite filter element of one embodiment of the invention, a tap water inlet, a purified water outlet, a purified water inlet and a purified water outlet are arranged on the shell; the outer wall of the RO filter element assembly and the inner wall of the shell define a first water purifying cavity communicated with the water purifying inlet; the inner wall of the RO filter element assembly and the outer wall of the inner tube define a pure water cavity communicated with the pure water outlet; the inner wall of the inner tube and the outer wall of the second filter tube define a tap water cavity communicated with the tap water inlet; a second water purifying cavity communicated with the purified water outlet is defined in the second filter pipe.
According to one embodiment of the invention, the housing comprises: barrel and lower cover, the bottom of barrel is opened, the inner tube RO filter core subassembly with the second filter tube is established in the barrel, running water entry, the water purification export, the water purification entry, the pure water export with the waste water mouth is all established the top of barrel, the lower cover is established the bottom of barrel, the lower cover with the barrel links to each other with the shutoff the opening of barrel.
According to one embodiment of the invention, the RO cartridge assembly comprises: the filter comprises a central tube, an RO filter membrane and an annular inner cover, wherein a filter material installation cavity with an open upper end is defined in the central tube, the inner tube is arranged in the filter material installation cavity, a pure water through hole is formed in the wall of the central tube, the RO filter membrane is sleeved on the central tube, the annular inner cover is sleeved on the central tube, the inner periphery of the annular inner cover is connected with the upper end edge of the inner tube, and the lower end face of the annular inner cover is abutted to the upper end face of the RO filter membrane.
According to one embodiment of the invention, a downward-opening waste water tank is defined in the annular inner cover, the upper end face of the RO filter membrane is matched with the annular inner cover to seal the waste water tank to form a waste water cavity, and a waste water channel which is communicated with the waste water cavity and the waste water port is arranged at the top of the inner cover.
According to one embodiment of the invention, the second filter tube comprises: the PAC filter comprises an inner pipe, a PAC framework, a PAC filter membrane, a PAC upper end cover and a PAC lower end cover, wherein the PAC framework is positioned in the inner pipe and extends along the axial direction of the inner pipe, the PAC filter membrane is sleeved on the PAC framework and extends along the axial direction of the PAC framework, the PAC upper end cover is sleeved on the upper part of the PAC framework, the lower surface of the PAC upper end cover is in sealing butt joint with the upper end surface of the PAC filter membrane, the PAC lower end cover is sleeved on the lower part of the PAC framework, and the upper surface of the PAC lower end cover is in sealing butt joint with the lower end surface of the PAC filter membrane.
According to one embodiment of the invention, the composite filter element further comprises: the active carbon filter core, the active carbon filter core is established pure water intracavity and be located the below of inner tube, the active carbon filter core will pure water chamber is separated into and is located active carbon filter core is outer former pure water chamber and being located go out the water cavity in the active carbon filter core, go out the water cavity intercommunication pure water export.
According to one embodiment of the invention, the pure water outlet is located at the top of the housing, and the composite filter element further comprises: the water outlet pipe penetrates through the inner pipe along the axial direction of the inner pipe, the upper end of the water outlet pipe is communicated with the pure water outlet, and the lower end of the water outlet pipe is communicated with the water outlet cavity.
An embodiment of a water treatment device according to a second aspect of the present invention comprises a composite filter cartridge according to the above-described embodiments.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a composite filter cartridge according to an embodiment of the invention;
FIG. 2 is a schematic partial construction of a composite filter cartridge 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 cartridge 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 cartridge in accordance with an embodiment of the present 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 view of the structure 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 center tube according to an embodiment of the present invention;
FIG. 15 is a schematic view of a construction of a waste water plug according to an embodiment of the present invention;
FIG. 16 is a front view of a waste water plug according to an embodiment of the present invention;
FIG. 17 is a cross-sectional view taken along line D-D of FIG. 16;
fig. 18 is a sectional view taken along line E-E of fig. 16.
Reference numerals:
100: a composite filter element;
10: a housing; 11: a cylinder; 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 section; 142: a guide section; 1421: a water guide column; 15: a decorative cover; 16: a handle.
20: An RO cartridge assembly; 21: a central tube; 211: coaming plate; 2111: a pure water through hole; 2112: a water guide groove; 212: a lower cover plate; 213: a support table; 22: RO filter membrane; 23: an annular inner cap; 231: a waste water chamber; 232: a waste water port;
30: an inner tube;
40: a second filter element assembly; 41: PAC framework; 42: PAC filtration; 43: PAC upper end cap; 44: PAC lower end cap;
50: an activated carbon filter element; 51: a first water purifying cavity; 52: a pure water cavity; 521: a water outlet cavity; 522: an original pure water cavity; 53: tap water cavity; 54: a second water purifying cavity;
60: and a water outlet pipe.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A composite filter cartridge 100 and a water treatment apparatus having the same according to an embodiment of the present invention are described below with reference to fig. 1 to 18.
As shown in fig. 1-4, a composite filter cartridge 100, according to one embodiment of the invention, includes: housing 10, RO cartridge assembly 20, inner tube 30, second cartridge assembly 40, and waste water plug 14.
Wherein, the shell 10 is provided with a waste water port 232, the RO filter element assembly 20 generates pure water and waste water in the use process, the pure water is supplied for users to drink, and the waste water can be discharged for other purposes. The RO filter cartridge assembly 20 is provided in the housing 10, a waste water chamber 231 communicating with a waste water port 232 is defined between the RO filter cartridge assembly 20 and the housing 10, and waste water generated by the RO filter cartridge assembly 20 is collected in the waste water chamber 231 and discharged through the waste water port 232.
The inner tube 30 is disposed in the RO filter element assembly 20, the second filter element assembly 40 is disposed in the inner tube 30, and the occupied space of the second filter element assembly 40 can be saved and the water purifying effect of the composite filter element 100 can be improved by integrating the second filter element assembly 40 in the inner tube 30.
Further, the waste water plug 14 is inserted into the waste water port 232, and in the waste water discharging process, the waste water plug 14 has a function similar to that of a waste water valve in the prior art, and the waste water plug 14 generates a certain resistance to water in the waste water cavity 231, for example, when the water pressure in the waste water cavity 231 reaches a predetermined pressure value, the waste water plug 14 is conducted, and waste water is discharged from the waste water cavity 231.
Therefore, according to the composite filter element 100 of the embodiment of the invention, the waste water plug 14 is arranged on the waste water port 232, the pressure of the waste water cavity 231 is increased by utilizing the waste water plug 14, so that the filtering effect of the RO filter element assembly 20 can be improved, and the waste water plug 14 is arranged on the shell 10, when the composite filter element 100 reaches the service cycle for replacement, the waste water plug 14 is replaced together, the waste water plug 14 on the composite filter element 100 is ensured to be replaced periodically, and the waste water plug 14 is prevented from being not replaced for a long time and damage to the normal work of the composite filter element 100 is prevented. And the waste water plug 14 is arranged on the shell 10, so that convenience is provided for replacing the waste water plug 14, and the difficulty of a replacing process of the waste water plug 14 is reduced.
In some implementations, the waste plug 14 is integrally formed with the housing 10, e.g., the waste plug 14 may be integrally provided on the housing 10. Therefore, the connection strength and stability of the waste water plug 14 and the shell 10 can be improved, the waste water plug 14 is prevented from being separated, a connecting mechanism between the waste water plug 14 and the shell 10 can be saved, the assembly efficiency of the waste water plug 14 can be improved, the stability of the integrally formed mechanism is enhanced, and the service life of the composite filter element 100 can be prolonged.
As shown in fig. 18, in the present embodiment, the waste water plug 14 includes: a sleeve inserted in the waste water port 232 and connected to the housing 10, and a plurality of capillaries provided on an inner wall of the sleeve and extending radially inward of the sleeve.
The capillary tubes are arranged along the circumferential direction of the sleeve to form a capillary group, and the capillary groups are filled in the sleeve along the axial direction of the sleeve. The waste water plug 14 with the structure has the advantages of simple structure and easy manufacture, and can effectively improve the water purifying effect of the RO filter element assembly 20.
As shown in fig. 15, in the present embodiment, the sleeve includes: the device comprises a plugging section 141 and a guiding section 142, wherein one end of the plugging section 141 is plugged in the waste water port 232, the plugging section 141 extends along the axial direction of the waste water port 232, and the guiding section 142 is communicated with the other end of the plugging section 141. Capillary tubes are provided in both the insertion section 141 and the guide section 142, or 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 of waste water mouth 232, and grafting section 141 is pegged graft in waste water mouth 232 moreover, and stability and seal are better, and guide section 142 is suitable for intercommunication waste water mouth 232 and waste water drain pipe, and wherein, guide section 142 perpendicular to grafting section 141 makes things convenient for waste water drain pipe to connect guide section 142, can provide convenience for the waste water discharge.
As shown in fig. 16-18, according to an embodiment of the present invention, a capillary tube is disposed in a plugging section 141, a radial inner end of the capillary tube cooperates with the plugging section 141 to define a diversion channel, the diameter of the diversion channel is smaller, when water flows through the diversion channel, the resistance of the water flow is larger, a water guiding column 1421 extending along the axial direction of the guiding section 142 is disposed in the guiding section 142, the water guiding column 1421 seals the diversion channel, and water flows from the plugging section 141 to the diversion section through the capillary tube, thereby being capable of satisfying the pressure action of the waste water plug 14 on the waste water cavity 231.
As shown in fig. 1, the composite filter cartridge 100 according to an embodiment of the present invention is provided with a tap water inlet 111, a purified water outlet 112, a purified water inlet 113, and a purified water outlet 114 on a housing 10.
The outer wall of the RO cartridge assembly 20 defines a first water purification chamber 51 communicating with a water purification inlet 113 with the inner wall of the housing 10, the inner wall of the RO cartridge assembly 20 defines a pure water chamber 52 communicating with a pure water outlet 114 with the outer wall of the inner tube 30, the inner wall of the inner tube 30 defines a tap water chamber 53 communicating with a tap water inlet 111 with the outer wall of the second cartridge assembly 40, and a second water purification chamber 54 communicating with a water purification outlet 112 is defined in the second cartridge assembly 40.
The water flow enters the tap water cavity 53 through the tap water inlet 111, the water flow in the tap water cavity 53 enters the second water purifying cavity 54 through the filtering action of the second filter element assembly 40 and flows out through the water purifying outlet 112, the discharged water enters the first water purifying cavity 51 through the water purifying inlet 113 through the action of the booster pump, the water flow in the first water purifying cavity 51 enters the pure water cavity 52 through the filtering action of the RO filter element assembly 20, and the water flow in the pure water cavity 52 flows out through the pure water outlet 114 for drinking by a user.
Wherein the gap between the inner wall of the housing 10 and the outer wall of the RO cartridge assembly 20 is 1.2mm, the gap between the inner wall of the RO cartridge 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 second cartridge assembly 40 is 1.2mm. Therefore, normal 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, the first water purifying cavity 51, the second water purifying cavity 54, the tap water cavity 53 and the pure water cavity 52 are defined by the inner wall of the shell 10, the inner wall of the RO filter element assembly 20, the outer wall of the RO filter element assembly 20, the inner wall of the inner tube 30, the outer wall of the inner tube 30 and the outer wall of the second filter element assembly 40, and the structure is simple, the implementation is easy, the structural design of the composite filter element 100 is simplified, and the production cost of the composite filter element 100 can be reduced.
As shown in fig. 6, according to an embodiment of the present invention, the housing 10 includes: barrel 11 and lower cover 12, the bottom of barrel 11 is opened, and first filter core is established in barrel 11, and running water entry 111, water purification export 112, water purification entry 113 and pure water export 114 all establish at the top of barrel 11, and lower cover 12 links to each other with barrel 11 in order to seal the open mouth of barrel 11, and the upper surface of lower cover 12 and the lower terminal surface sealing butt of first filter core.
As shown in fig. 12-14, in this embodiment, the first cartridge includes: the RO filter membrane 22 is a reverse osmosis filter membrane, and the RO filter membrane 22 is sleeved on the central tube 21 and extends along the axial direction of the central tube 21. The annular inner cover 23 is sleeved on the central tube 21, the inner peripheral edge of the annular inner cover 23 is in sealing contact with the upper edge of the inner tube 30, and the lower surface of the annular inner cover 23 is in sealing fit with the upper end face of the RO filter membrane 22.
Wherein, pure water through holes 2111 are formed on the wall of the central tube 21, the pure water through holes 2111 penetrate through the wall of the central tube 21 along the thickness direction of the wall of the central tube 21, water flow enters the RO filter membrane 22 from the lower end of the RO filter membrane 22, the RO filter membrane 22 filters the water flow into waste water and pure water, and the waste water flows out from the upper end of the RO filter membrane 22 and is discharged through the waste water chamber 231 and the waste water outlet 115. Pure water flows out from the inner wall of the RO filter membrane 22 and enters the pure water chamber 52 through the pure water through-hole 2111 and is discharged for the user to drink through the pure water outlet 114.
Further, as shown in fig. 9 to 11, a waste water port 232 is provided on the annular inner cover 23, a waste water tank with an open lower surface is defined in the annular inner cover 23, the waste water tank extends along the circumferential direction of the annular inner cover 23, the upper end surface of the RO filter membrane 22 cooperates with the annular inner cover 23 to seal the waste water tank into a waste water cavity 231, and a waste water channel communicating the waste water cavity 231 with the waste water outlet 115 is defined in the annular inner cover 23.
The RO cartridge assembly 20 separates the wastewater during filtration, and can direct the wastewater discharge by providing a wastewater port 232, a wastewater chamber 231, and a wastewater channel. The waste water chamber 231 is defined on the annular inner cover 23, so that waste water can be prevented from being strung into the first water purifying chamber 51, the pure water chamber 52, the tap water chamber 53 and the second water purifying chamber 54, and the quality of filtered water flow can be improved. And the waste water of RO filter element assembly 20 is discharged from the tip of RO filter element assembly 20, is prescribing a limit to waste water chamber 231 on annular inner cup 23, can provide the convenience for waste water entering waste water chamber 231, and simple structure has eliminated the water conservancy diversion passageway between RO filter element assembly 20 and the waste water chamber 231, has simplified the structural design and the water route design of composite filter element 100.
As shown in fig. 3 and 8, in the present embodiment, the second cartridge assembly 40 is a PAC cartridge, and the second cartridge assembly 40 includes: the PAC framework 41 and the PAC filter membrane 42, the PAC framework 41 is positioned in the inner pipe 30 and extends along the axial direction of the inner pipe 30, the PAC filter membrane 42 is sleeved on the PAC framework 41 and extends along the axial direction of the PAC framework 41, the PAC filter membrane 42 is a tubular filter element made of polyaluminium chloride material, and the thickness of the PAC filter membrane 42 is greater than 10mm.
The PAC framework 41 defines a second water purifying cavity 54, the outer wall of the PAC filter 42 and the inner wall of the inner tube 30 define a tap water cavity 53, tap water enters the tap water cavity 53 through a tap water inlet 111, and water flows through the PAC filter 42 and flows out of the inner wall of the PAC framework 41 into the second water purifying cavity 54 through the filtering action of the PAC filter 42, and then flows out of the purified water outlet 112.
Because the filtering effect of the PAC filter 42 is related to the thickness of the water flowing through the PAC filter 42, the PAC filter 42 and the PAC framework 41 form the second filter element assembly 40 and are disposed in the inner tube 30, so that the diameter of the second filter element assembly 40 is reduced, the occupied space of the second filter element assembly 40 can be reduced, and the volume and production materials of the PAC filter 42 can be reduced, which is beneficial to reducing the cost.
As shown in fig. 3 and 8, in this embodiment, the second filter cartridge assembly 40 further comprises: the PAC upper end cover 43 and the PAC lower end cover 44, the PAC upper end cover 43 is sleeved at the upper end of the PAC framework 41, the lower surface of the PAC upper end cover 43 is in sealing contact with the upper end face of the PAC filter membrane 42, the PAC lower end cover 44 is sleeved at the lower end of the PAC framework 41, and the upper surface of the PAC lower end cover 44 is in sealing contact with the lower end face of the PAC filter membrane 42. And the water outlet pipe 60 penetrates through the PAC upper end cover 43 and the PAC lower end cover 44, and the peripheral edge of the PAC lower end cover 44 is in sealing fit with the inner peripheral wall of the inner pipe 30.
By providing the PAC upper end cover 43 and the PAC lower end cover 44, the tightness of the upper end and the lower end of the PAC filter 42 can be improved, the water flow in the PAC filter 42 is prevented from flowing out from the upper end or the lower end of the PAC filter 42, and the tightness of the tap water chamber 53 can be improved.
As shown in fig. 8, in this embodiment, the outer peripheral edge of the PAC upper end cover 43 is formed with a turned-down upper flange, an inner wall of the upper flange abuts against the outer peripheral wall of the PAC filter membrane 42, and a tap water channel is defined between an outer wall of the upper flange and an inner wall of the inner tube 30, and water flows from the tap water inlet 111 through the tap water channel into the tap water chamber 53.
The PAC lower end cap 44 is formed with a turned-up lower flange along its outer periphery, the inner wall of the lower flange abuts against the outer peripheral wall of the PAC filter membrane 42, and the outer wall of the lower flange abuts against the inner peripheral wall of the inner tube 30 in a sealing manner.
Thereby improving the performance of the second cartridge assembly 40 and improving the tightness and reliability of the tap water chamber 53 to prevent leakage of water.
According to one embodiment of the present invention, further comprising: the active carbon filter element 50 and the water outlet pipe 60, the active carbon filter element 50 is arranged in the central pipe 21 and is in sealing contact between the lower end of the inner pipe 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. The water outlet pipe 60 extends in the axial direction of the inner pipe 30 and penetrates the inner pipe 30, one end (lower end as viewed in fig. 4) of the water outlet pipe 60 communicates with the water outlet chamber 521, and the other end (upper end as viewed in fig. 4) of the water outlet pipe 60 communicates with the pure water outlet 114.
That is, pure water filtered by the RO filter element assembly 20 enters the raw pure water chamber 522, and water in the raw 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, thereby making it possible to further clarify impurities or bad odors in water. The water filtered by the RO filter element assembly 20 is slightly acidic, has poor taste, is not suitable for direct drinking by users, and can further improve the quality of pure water and the taste of drinking water through the filtering effect of the carbon filter element.
In this embodiment, the activated carbon filter element 50 and the inner tube 30 are arranged in the axial direction of the filter mounting cavity, the activated carbon filter element 50 is disposed at the bottom of the built-in filter mounting cavity, the inner tube 30 is disposed at the top of the activated carbon filter element 50, and the pure water outlet 114 is disposed at the top of the housing 10. The active carbon filter element 50 and the inner tube 30 which are axially arranged along the RO filter element assembly 20 can fully utilize the space of the built-in filter material mounting cavity, be favorable for reducing the inner diameter of the built-in filter material mounting cavity, further reduce the diameter and the volume of the RO filter element assembly 20, and the active carbon filter element 50 and the inner tube 30 with the structure have simple structure and are convenient to assemble.
The pure water outlet 114 is positioned above the inner pipe 30, the water outlet cavity 521 is positioned in the activated carbon filter element 50 and below the inner pipe 30, and the water outlet pipe 60 is arranged to facilitate the water flow in the water outlet cavity 521 to flow out of the pure water outlet 114, and the water outlet pipe 60 has a simple structure and is easy to realize.
Moreover, the activated carbon filter element 50 is arranged in the pure water cavity 52, so that the degree of compositing 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 case that the activated carbon filter element 50 is independently arranged, 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.
Further, the PAC framework 41 is tubular, the PAC framework 41 is sleeved on the water outlet pipe 60, the outer wall of the water outlet pipe 60 and the inner wall of the PAC framework 41 define a second water purifying cavity 54, and a plurality of holes penetrating through the wall of the PAC framework 41 along the thickness direction of the wall of the PAC framework 41 are formed in the wall of the PAC framework 41. By arranging the holes on the wall of the PAC framework 41, 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.
The PAC lower end cover 44 is sleeved on the water outlet pipe 60, and the inner peripheral wall of the PAC lower end cover 44 is connected with the outer peripheral wall of the water outlet pipe 60, so that the tightness of the second water purifying cavity 54 can be improved, and the PAC lower end cover 44 and the water outlet pipe 60 can be integrally formed.
In the present embodiment, the center tube 21 includes: the enclosing plate 211 and the lower cover plate 212, the enclosing plate 211 is formed into a cylinder shape with two open ends, the RO filter membrane 22 is sleeved on the enclosing plate 211, the lower cover plate 212 is arranged in the enclosing plate 211 and is positioned at the lower part of the enclosing plate 211, the lower cover plate 212 seals the lower end opening of the enclosing plate 211 and cooperates with the enclosing plate 211 to define a built-in filter material mounting cavity, and the lower end of the activated carbon filter element 50 is stopped on the upper surface of the lower end cover. That is, the central tube 21 is formed in a cylindrical shape with an open upper end and a closed lower end, and the inner wall of the shroud 211 and the upper surface of the lower end cover cooperate with the outer surface of the inner tube 30 to define the pure water chamber 52.
The wall of the central tube 21 is formed with a pure water through hole 2111, the pure water through hole 2111 penetrates through the wall of the central tube 21 in the thickness direction of the wall of the central tube 21, water flows into the RO filter membrane 22 from the lower end of the RO filter membrane 22, the RO filter membrane 22 separates the water flow filtration into wastewater and pure water, and the wastewater flows out from the upper end of the RO filter membrane 22 and is discharged through the wastewater chamber 231 and the wastewater outlet 115. Pure water flows out from the inner wall of the RO filter membrane 22 and enters the pure water chamber 52 through the pure water through-hole 2111 and is discharged for the user to drink through the pure water outlet 114.
As shown in fig. 12, a water guide groove 2112 communicating with the pure water through hole 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 flow filtered by the RO filter membrane 22 flows into the pure water through hole 2111 through the water guide groove 2112, is collected in the filter medium mounting chamber, and is then guided out.
Because RO filter membrane 22 winds and establishes on bounding wall 211, through setting up guiding gutter 2112 on bounding wall 211, can increase the flow efficiency of deriving rivers in the RO filter membrane 22, increase the play water efficiency of RO filter membrane 22, and then can promote the water purification efficiency of RO filter element assembly.
As shown in fig. 12, the water guiding groove 2112 extends along the circumferential direction of the coaming 211, that is, the water guiding groove 2112 is formed in a ring shape extending along the circumferential direction of the coaming 211, and the pure water through hole 2111 is provided in the water guiding groove 2112, whereby the length of the water guiding groove 2112 can be further increased, the water outlet efficiency of the RO filter membrane 22 can be further improved, the uniformity of the water outlet efficiency of the RO filter membrane 22 in the circumferential direction can be ensured, and the influence of the local water outlet blockage on the water purifying efficiency of the RO filter membrane 22 can be prevented.
The central tube 21 with the structure is closed at the lower end, so that the pure water flow can be prevented from leaking from the lower end of the pure water cavity 52, and only the tightness of the upper end of the central tube 21 needs to be paid attention to in the RO filter core assembly process.
As shown in fig. 13 and 14, in the present embodiment, the inner wall of the shroud 211 is formed with a support stand 213 protruding inward in the radial direction of the shroud 211, the support stand 213 has an upper surface, the lower end of the inner tube 30 is stopped against the upper surface of the support stand 213, and the activated carbon cartridge 50 is provided below the inner tube 30 inside the support stand 213.
Through set up on bounding wall 211 with inner tube 30 complex brace table 213, can provide convenience for the assembly of inner tube 30, brace table 213 can promote the assembly stability of inner tube 30 to the supporting role of inner tube 30, can reduce the extrusion effect of inner tube 30 to active carbon filter core 50 moreover, prevent that inner tube 30 pressure is too big from causing the damage to active carbon filter core 50, be favorable to prolonging active carbon filter core 50's life.
Further, the support stand 213 extends in the circumferential direction of the shroud 211, that is, the support stand 213 is formed in a ring shape extending in the circumferential direction of the shroud 211, the support stand 213 may also be formed in a tubular shape extending in the axial direction of the shroud 211, the lower end of the support stand 213 abuts against the upper surface of the lower end cap of the center tube 21, and the activated carbon cartridge 50 is provided in the support stand 213.
The tubular supporting stand 213 can promote the uniformity of the stress of the inner tube 30, and prevent the inner tube 30 from being damaged or inclined due to uneven local stress. Wherein, supporting bench 213, bounding wall 211 and lower extreme cap integrated into one piece, that is to say that center tube 21 is integrated into one piece, integrated into one piece's center tube 21 can promote the connection stability and the joint strength between supporting bench 213, bounding wall 211 and the lower extreme cap, and then can promote the functional stability and the reliability of center tube 21, can eliminate the coupling mechanism between supporting bench 213, bounding wall 211 and the lower extreme cap moreover, has promoted the assembly efficiency of center tube 21 and composite filter core 100, and integrated into one piece's center tube 21's intensity is big moreover, and life is longer.
As shown in fig. 6, according to an embodiment of the present invention, the housing 10 includes: the bottom of the cylinder 11 is open, the RO filter element assembly 20 is arranged in the cylinder 11, the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the purified water outlet 114 are all arranged at the top of the cylinder 11, the lower cover 12 is connected with the cylinder 11 to close the open mouth of the cylinder 11, and the upper surface of the lower cover 12 is in sealing abutting connection with the lower end face of the RO filter element assembly 20.
The shell 10 is further provided with four adapters 13, the four adapters 13 are inserted into the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the purified water outlet 114 in a one-to-one correspondence manner, convenience is provided for assembling the waterway of the composite filter element 100 by arranging the adapters 13, and the tightness of the waterway is improved.
Wherein, the shell 10 is further provided with a decorative cover 15, the decorative cover 15 is covered on the top of the cylinder 11, and the tap water inlet 111, the purified water outlet 112, the purified water inlet 113, the purified water outlet 114 and the waste water outlet 115 are covered in the decorative cover 15, thereby improving the appearance uniformity of the composite filter element 100.
In this embodiment, the top of barrel 11 still is equipped with handle 16, is equipped with first tie point and the second tie point that the interval was arranged on the lateral wall of barrel 11, and first tie point is connected to handle 16's one end, and the second tie point is connected to the other end, and when demolishing or assembling compound filter core 100, the user gets through promoting 16 and puts compound filter core 100, convenient operation, and stability is strong, and handle 16 simple structure moreover realizes easily.
In the assembly process of the composite filter element 100, the RO filter film 22 is wound on the central tube 21, then the activated carbon filter element 50 is arranged in the built-in filter material installation cavity, then the inner tube 30 is assembled in the built-in filter material installation cavity, the lower end of the inner tube 30 is abutted against the activated carbon filter element 50, then the water outlet tube 60 is inserted into the inner tube 30, then the second filter element assembly 40 is sleeved on the water outlet tube 60, finally the annular inner cover 23 is covered on the central tube 21, and the water outlet tube 60 and the PAC upper end cover 43 extend out of the middle part of the annular inner cover 23. Then the RO filter element assembly 20 is inserted in the cylinder 11, 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 inner cavity of the cylinder 11, the first water channel is communicated with the pure water outlet 114 and the water outlet pipe 60, one end of the second water channel is communicated with the tap water inlet 111, and the other end is communicated with a channel between the outer peripheral wall of the PAC upper end cover 43 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 is communicated with a channel between the inner peripheral wall of the PAC upper end cover 43 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 is communicated with a channel between the outer peripheral wall of the RO filter membrane 22 and the inner peripheral wall of the cylinder 11, and the fifth water channel is communicated with the waste water outlet 115 and the waste water outlet 232.
In this embodiment, the central axis of the RO cartridge assembly 20, the central axis of the second cartridge assembly 40, the central axis of the inner tube 30, and the central axis of the outlet tube 60 coincide with the central axis of the housing 10. That is, the water outlet pipe 60, the second filter element assembly 40, the inner pipe 30, the RO filter element assembly 20 and the housing 10 are nested in sequence, so that the occupied space of the water outlet pipe 60, the second filter element assembly 40, the inner pipe 30 and the RO filter element assembly 20 can be reduced, the utilization efficiency of the internal space of the composite filter element 100 is improved, the volume of the housing 10 can be reduced, and convenience is provided for the use and assembly of the composite filter element 100.
A water treatment apparatus according to an embodiment of the second aspect of the present invention includes the composite filter element 100, the booster pump, and the tank described in the above embodiments.
Specifically, the tank body is provided with a water supply device, a water outlet and a water outlet, the composite filter element 100 and a booster pump are arranged in the tank 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 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 waste water outlet 115 and is used for discharging waste water.
According to the water treatment device of the second aspect of the invention, the composite filter element 100 described in the embodiment is adopted, so that the volume of the water treatment device can be reduced, the occupied space can be saved, the water outlet quality can be improved, and convenience is provided for users to use.
Other constructions and operations of the water treatment apparatus according to the 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 of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290069.7A CN111115872B (en) | 2018-10-31 | 2018-10-31 | Composite filter element and water treatment device with same |
| 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 |
|---|---|---|---|
| CN201811290069.7A CN111115872B (en) | 2018-10-31 | 2018-10-31 | Composite filter element and water treatment device with same |
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| Publication Number | Publication Date |
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| CN111115872A CN111115872A (en) | 2020-05-08 |
| CN111115872B true CN111115872B (en) | 2024-08-06 |
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| CN112121514A (en) * | 2020-10-14 | 2020-12-25 | 珠海格力电器股份有限公司 | Filter flask and purifier |
| CN112551722B (en) * | 2020-12-18 | 2025-02-07 | 纯米科技(上海)股份有限公司 | Composite filter element |
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|---|---|---|---|---|
| CN204224339U (en) * | 2014-10-30 | 2015-03-25 | 江苏省八杯水电器有限公司 | A kind of wall-hanging water purifier that RO membrane cartridge is set |
| CN207498155U (en) * | 2017-10-30 | 2018-06-15 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly and water purification system |
| CN209307055U (en) * | 2018-10-31 | 2019-08-27 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201337886Y (en) * | 2008-12-30 | 2009-11-04 | 苏州立升净水科技有限公司 | Purifier with inlet and outlet on the same side and filtering equipment comprising same |
| CN105540902B (en) * | 2016-03-08 | 2019-06-28 | 北京四季沐歌太阳能技术集团有限公司 | Close-coupled water purifier filter core |
| CN108339306B (en) * | 2018-04-27 | 2024-05-17 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment equipment with same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204224339U (en) * | 2014-10-30 | 2015-03-25 | 江苏省八杯水电器有限公司 | A kind of wall-hanging water purifier that RO membrane cartridge is set |
| CN207498155U (en) * | 2017-10-30 | 2018-06-15 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly and water purification system |
| CN209307055U (en) * | 2018-10-31 | 2019-08-27 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
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