WO2020088560A1 - Ro滤芯组件和具有其的复合滤芯、水处理装置 - Google Patents

Ro滤芯组件和具有其的复合滤芯、水处理装置 Download PDF

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Publication number
WO2020088560A1
WO2020088560A1 PCT/CN2019/114558 CN2019114558W WO2020088560A1 WO 2020088560 A1 WO2020088560 A1 WO 2020088560A1 CN 2019114558 W CN2019114558 W CN 2019114558W WO 2020088560 A1 WO2020088560 A1 WO 2020088560A1
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WO
WIPO (PCT)
Prior art keywords
filter element
water
filter
element assembly
pac
Prior art date
Application number
PCT/CN2019/114558
Other languages
English (en)
French (fr)
Inventor
李杨敏
裴清刚
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821790634.1U external-priority patent/CN209307002U/zh
Priority claimed from CN201811291602.1A external-priority patent/CN111115757A/zh
Priority claimed from CN201811290069.7A external-priority patent/CN111115872A/zh
Priority claimed from CN201821792136.0U external-priority patent/CN209307055U/zh
Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Publication of WO2020088560A1 publication Critical patent/WO2020088560A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • 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

Definitions

  • the present application belongs to the technical field of household appliances, and in particular, relates to an RO filter element assembly, a composite filter element having the same, and a water treatment device.
  • the central tube of the RO filter element assembly is only used to guide pure water and cannot accommodate other components, and the internal space utilization efficiency of the central tube is low.
  • This application aims to solve at least one of the technical problems in the prior art.
  • the present application proposes an RO filter element assembly.
  • the composite filter element has a small volume and saves space.
  • the present application also proposes a composite filter element having the above RO filter element assembly.
  • the present application also proposes a water treatment device having the above composite filter element.
  • the RO filter element assembly includes: a central tube and an RO filter membrane, a filter material installation cavity is defined in the central tube, a pure water through hole is formed on the wall of the central tube, and the RO The filter membrane is sleeved on the central tube, and the RO filter membrane covers the pure water through hole.
  • the built-in filter material can be accommodated in the filter material installation cavity, thereby providing convenience for the compounding of multiple filter elements and making full use of the RO filter element assembly
  • the internal space can further reduce the overall volume of the composite filter element, and can improve the filtration effect of the composite filter element.
  • the diameter of the filter material installation cavity is greater than 30 mm.
  • the RO filter membrane extends along the axial direction of the central tube.
  • the central tube includes: a surrounding plate and a lower cover plate, the surrounding plate is formed in a cylindrical shape with both ends open, the pure water through hole is provided on the surrounding plate, the The RO filter membrane is sleeved on the enclosure plate, the lower cover plate is provided in the enclosure plate and located at a lower portion of the enclosure plate, and the lower cover plate closes the lower end of the enclosure plate to define the filter material Install the cavity.
  • a water guiding channel communicating with the pure water through hole is formed on the outer peripheral wall of the surrounding board.
  • the water guiding groove extends along the circumferential direction of the surrounding board.
  • the water guiding groove extends along the axial direction of the surrounding board.
  • the RO filter membrane is formed in a sheet shape wound around the surrounding board.
  • a jig clamping groove is formed on the lower end surface of the lower cover plate, and the jig clamping groove is adapted to cooperate with the jig to drive the central tube to rotate and form the RO filter membrane.
  • a support platform is provided on the inner wall of the surrounding panel, and the supporting platform protrudes inward in the radial direction of the surrounding panel.
  • the surrounding board, the lower cover board and the supporting platform are integrally formed.
  • a composite filter element includes a housing, the RO filter element assembly according to the above embodiment, an inner tube, and a built-in filter material, the inner tube is detachably provided in the filter material installation cavity , The inner tube is provided in the filter material installation cavity, and the built-in filter material is provided in the inner tube.
  • the built-in filter material is provided in the inner tube, and the inner tube is provided in the RO filter element assembly, which can make full use of the space in the RO filter element assembly, and the inner tube is used for the RO filter element assembly
  • the second filter element assembly is spaced and compounded in the housing, which not only improves the filtering effect of the composite filter element, but also the space that originally contained one filter element can accommodate two filter elements, saving space.
  • a composite filter element includes a housing, an RO filter element assembly, an inner tube, a second filter tube, and a waste water plug.
  • a waste water outlet is provided on the housing, and the RO filter element assembly is provided on In the housing, the RO filter element assembly is the RO filter element assembly according to the above embodiment, and a wastewater chamber communicating with the wastewater outlet is defined between the RO filter element assembly and the housing, and the inner tube is provided at In the RO filter element assembly, the second filter tube is provided in the inner tube, and the waste water plug is inserted in the waste water outlet.
  • the composite filter element according to the embodiment of the third aspect of the present application can not only save space, but also increase the pressure of the waste water chamber by using a waste water plug at the waste water outlet, thereby improving the filtering effect of the RO filter element, and the waste water plug It is set on the shell.
  • the waste water plug is replaced together to ensure that the waste water plug on the composite filter element is regularly replaced to prevent the waste water plug from being replaced for a long time and damage to the normal work of the composite filter element.
  • the installation of the waste water plug on the casing can provide convenience for the replacement of the waste water plug and reduce the difficulty of the replacement process of the waste water plug.
  • the waste water plug is integrally formed with the housing.
  • the waste water plug includes: a sleeve and a plurality of capillaries, the sleeve is inserted in the waste water outlet and connected to the housing, and the capillary is provided in the The inner wall of the sleeve extends inward in the radial direction of the sleeve.
  • the sleeve includes: a plug-in section and a guide section, the plug-in section is inserted in the wastewater outlet and extends along the axial direction of the wastewater outlet, and the guide section is in communication The plug section.
  • the capillary is provided in the insertion section, the radial inner end of the capillary cooperates to define a flow guide channel, and the guide section is provided with an axial direction of the guide section An extended water guiding column which closes the diversion channel.
  • the guide section is perpendicular to the plug section.
  • the housing is provided with a tap water inlet, a purified water outlet, a purified water inlet, and a pure water outlet;
  • the outer wall of the RO filter element assembly and the inner wall of the housing define communication
  • an inner wall of the RO filter element assembly and an outer wall of the inner tube define a pure water cavity communicating with the pure water outlet;
  • the outer wall of the filter tube defines a tap water cavity that communicates with the tap water inlet;
  • the second filter tube defines a second water purification cavity that communicates with the water purification outlet.
  • the housing includes a barrel and a lower cover, the bottom of the barrel is open, and the inner tube, the RO filter element assembly, and the second filter tube are provided in the barrel
  • the tap water inlet, the purified water outlet, the purified water inlet, the pure water outlet and the waste water outlet are all provided on the top of the barrel
  • the lower cover is provided on the barrel At the bottom, the lower cover is connected to the barrel to close the open opening of the barrel.
  • the upper end of the filter material installation cavity is open
  • the RO filter element assembly includes: an annular inner cover, the annular inner cover is sleeved on the central tube, and the inner portion of the annular inner cover The peripheral edge is connected to the upper end edge of the inner tube, and the lower end surface of the annular inner cover abuts against the upper end surface of the RO filter membrane.
  • a downwardly opened waste water tank is defined in the annular inner cover, and the upper end surface of the RO filter membrane cooperates with the annular inner cover to close the waste water tank to form a waste water chamber, the inner
  • the top of the cover is provided with a waste water channel connecting the waste water chamber and the waste water outlet.
  • the second filter tube includes: a PAC skeleton, a PAC filter membrane, a PAC upper end cap and a PAC lower end cap
  • the PAC skeleton is located in the inner tube and extends along the axial direction of the inner tube
  • the PAC filter membrane is sleeved on the PAC skeleton and extends along the axial direction of the PAC skeleton
  • the PAC upper end cover is sleeved on the upper portion of the PAC skeleton
  • the lower surface of the PAC upper end cover is sealed against Connected to the upper end surface of the PAC filter membrane
  • the lower end cover of the PAC is sleeved on the lower portion of the PAC skeleton
  • the upper surface of the lower end cover of the PAC seals against the lower end surface of the PAC filter membrane.
  • the composite filter element further includes: an activated carbon filter element, the activated carbon filter element is disposed in the pure water cavity and located below the inner tube, and the activated carbon filter element separates the pure water cavity An original pure water cavity outside the activated carbon filter element and a water outlet cavity inside the activated carbon filter element are formed, and the water outlet cavity communicates with the pure water outlet.
  • the pure water outlet is located at the top of the housing
  • the composite filter element further includes: a water outlet pipe, the water outlet pipe penetrates the inner pipe along the axial direction of the inner pipe, so The upper end of the water outlet pipe communicates with the pure water outlet, and the lower end of the water outlet pipe communicates with the water outlet cavity.
  • a water treatment device includes the composite filter element according to the above embodiment.
  • the water treatment device of the embodiment of the fourth aspect of the present application by saving the space occupied by the composite filter element, the water treatment device can be made more compact and universal.
  • FIG. 1 is a schematic structural view of a composite filter element according to an embodiment of the present application.
  • FIG. 2 is a partial structural schematic diagram of a composite filter element according to an embodiment of the present application.
  • FIG. 3 is a cross-sectional view taken along line A-A in FIG. 1;
  • FIG. 4 is a cross-sectional view taken along line B-B in FIG. 2;
  • Figure 5 is an exploded view of the mechanism in Figure 4.
  • FIG. 6 is an exploded view of the housing of the composite filter element according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of cooperation between an inner tube and an activated carbon filter element according to an embodiment of the present application.
  • FIG. 8 is a cross-sectional view taken along line C-C in FIG. 7;
  • FIG. 9 is a schematic structural diagram of an annular inner cover according to an embodiment of the present application.
  • FIG. 10 is a cross-sectional view of an annular inner cover according to an embodiment of the present application.
  • FIG. 11 is a plan view of an annular inner cover according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a central tube according to an embodiment of the present application.
  • FIG. 13 is a cross-sectional view of the center tube according to an embodiment of the present application.
  • FIG. 14 is a side view of the center tube according to an embodiment of the present application.
  • 15 is a schematic structural diagram of a waste water plug according to an embodiment of the present application.
  • 16 is a front view of a waste water plug according to an embodiment of the present application.
  • 17 is a cross-sectional view taken along line D-D in FIG. 16;
  • Fig. 18 is a cross-sectional view taken along line E-E in Fig. 16.
  • 40 second filter element assembly; 41: PAC skeleton; 42: PAC filter membrane; 43: PAC upper end cap; 431: upper flange 431; 44: PAC lower cap; 441: lower flange 441;
  • 50 activated carbon filter
  • 51 first water purification chamber
  • 52 pure water chamber
  • 521 outlet water chamber
  • 522 original pure water chamber
  • 53 tap water chamber
  • 54 second water purification chamber
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • the RO filter element assembly 20 the composite filter element 100 and the water treatment device having the same according to an embodiment of the present application will be described below with reference to FIGS. 1-18.
  • the RO filter element assembly 20 includes a central tube 21 and an RO filter membrane 22.
  • the central tube 21 is formed into a tubular shape with one end open.
  • the central tube 21 defines a filter material installation cavity 210 with a diameter greater than 30 mm.
  • the RO filter membrane 22 is sleeved on the central tube 21 and the RO The filter membrane 22 covers the pure water through hole 2111.
  • a suitable filter material can be assembled in the filter material installation cavity 210.
  • the filter material in the filter material installation cavity 210 cooperates with the RO filter membrane 22 outside the center tube 21 to increase the RO The water filtration effect of the filter membrane 22 and the filter material.
  • 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 along the thickness direction of the wall of the central tube 21, and the water flow filtered by the RO filter membrane 22 passes through the central tube 21 The pure water through hole 2111 flows out, and the flow resistance is small.
  • the RO filter element assembly 20 of the embodiment of the present application by defining the filter material installation cavity 210 in the central tube 21, the built-in filter material can be accommodated in the filter material installation cavity 210, thereby providing convenience for the combination of multiple filter elements
  • the internal space of the RO filter element assembly 20 can be fully utilized, and 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.
  • the RO filter membrane 22 extends along the axial direction of the center tube 21, and the RO filter membrane 22 extending along the axial direction of the center tube 21 can increase the membrane area of the RO filter membrane 22, which in turn can enhance the RO filter membrane 22 Filtering capacity and filtering effect.
  • the central tube 21 includes: a surrounding plate 211 and a lower cover plate 212, the surrounding plate 211 is formed in a cylindrical shape with both ends open, and a pure water through hole 2111 is provided in the surrounding plate 211
  • the RO filter membrane 22 is sheathed on the enclosure 211
  • the lower cover 212 is disposed in the enclosure 211 and is located at the lower part of the enclosure 211
  • the lower cover 212 closes the lower end opening of the enclosure 211 and cooperates with the enclosure 211 to define ⁇ ⁇ Installation chamber 210.
  • the lower end of the filter material installation cavity 210 can be closed.
  • the sealing effect is good, and water flow is prevented from flowing out from the lower end of the center tube 21.
  • the structure is simple, the assembly is convenient, and the production cost is low.
  • a water guide groove 2112 communicating with the pure water through hole 2111 is formed on the outer peripheral wall of the surrounding plate 211.
  • the water guiding groove 2112 is recessed inward relative to the outer peripheral wall of the surrounding plate 211, and the water flow filtered by the RO filter membrane 22 passes through The water guiding groove 2112 flows into the pure water through hole 2111, and then collects in the filter material installation cavity 210, and then leads out.
  • the RO filter membrane 22 is wound around the surrounding plate 211, by providing the water guide groove 2112 on the surrounding plate 211, the flow efficiency of the outflow of water from the RO filter membrane 22 can be increased, and the water outlet efficiency of the RO filter membrane 22 can be increased, thereby improving the RO Water purification efficiency of the filter element assembly 20.
  • the water guiding groove 2112 extends along the circumferential direction of the surrounding plate 211, that is to say, the water guiding groove 2112 is formed in a ring shape extending along the circumferential direction of the surrounding plate 211, and the pure water through hole 2111 is provided in the water guiding groove 2112 by This can further increase the length of the water guiding tank 2112, further improve the water outlet efficiency of the RO filter membrane 22, and can ensure that the RO filter membrane 22 has uniform water outlet efficiency in the circumferential direction, preventing the partial water outlet obstruction from affecting the RO filter membrane 22 water purification efficiency.
  • the water guiding groove 2112 may also extend along the axial direction of the surrounding plate 211, the pure water through holes 2111 are spaced apart along the axial direction of the surrounding plate 211, and the water guiding groove 2112 sequentially communicates with the pure water through holes 2111.
  • a plurality of water guiding grooves 2112 there are a plurality of water guiding grooves 2112, part of the water guiding grooves 2112 extend along the circumferential direction of the surrounding plate 211, a plurality of water guiding grooves 2111 are spaced apart along the axial direction of the surrounding plate 211, and part of the water guiding grooves 2112 are along the surrounding plate
  • the axially extending water guide groove 2112 extending in the axial direction of the enclosure 211 sequentially communicates with the water guide groove 2111 extending in the circumferential direction of the enclosure 211, and the water guide groove 2111 is formed as a water guide net arranged on the outer peripheral wall of the enclosure 211.
  • the pure water through hole 2111 may be provided at the intersection of the water guiding groove 2112 extending along the axial direction of the surrounding plate 211 and the water guiding groove 2112 extending along the circumferential direction of the surrounding plate 211.
  • the inner wall of the surrounding plate 211 is formed with a supporting platform 213 protruding inward in the radial direction of the surrounding plate 211, the supporting platform 213 has an upper surface, and the lower end of the filter material can be stopped at On the upper surface of the support table 213.
  • the supporting table 213 extends along the circumferential direction of the surrounding board 211, that is, the supporting table 213 is formed in a ring shape extending along the circumferential direction of the surrounding board 211, and the supporting table 213 may also be formed along the axial direction of the surrounding board 211
  • the lower end of the supporting table 213 is tubular, and the upper surface of the lower cover plate 212 of the center tube 21 is stopped.
  • the tubular support platform 213 can improve the uniformity of the stress of the filter material and prevent the filter material from being damaged or tilted due to uneven force in the filter material installation cavity 210.
  • the support table 213, the surrounding plate 211 and the lower cover plate 212 are integrally formed, that is to say, the central tube 21 is an integrally formed piece, and the integrally formed central tube 21 can lift between the supporting table 213, the surrounding plate 211 and the lower cover plate 212
  • the connection stability and strength of the connection can further improve the functional stability and reliability of the center tube 21, and can eliminate the connection mechanism between the support table 213, the surrounding plate 211 and the lower cover plate 212, and improve the center tube 21 and the composite
  • the assembly efficiency of the filter element 100, and the strength of the integrally formed central tube 21 are large, and the service life is long.
  • the RO filter membrane 22 is formed in a sheet shape wound around the surrounding plate 211, wherein the RO filter membrane 22 is formed in a strip shape with a constant width, and the strip-shaped RO filter membrane 22 is wound around the surrounding plate 211
  • the area of the strip-shaped 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 enclosure 211, which takes up less space, and can provide convenience for the water flow through the RO filter membrane 22.
  • a jig clamping groove 214 is formed on the lower end surface of the lower cover plate 212.
  • the jig clamping groove 214 is suitable for cooperating with the jig to drive the central tube 21 to rotate and form the RO filter membrane 22.
  • the central tube 21 is generally installed on a rotating mechanism, and the RO filter membrane 22 is wound by rotating the central tube 21, thereby improving the production efficiency of the RO filter element assembly 20, and Easy to operate.
  • the lower surface of the lower cover plate 212 is provided with a jig slot 214
  • the jig of the rotating central tube 21 may be a motor type mechanism
  • the motor shaft of the motor may be provided with a buckle adapted to the jig slot 214, card
  • the buckle cooperates with the jig clamping groove 214 to prevent relative misalignment when the jig drives the central tube 21 to rotate, thereby increasing the tension when the central tube 21 is wound around the RO filter membrane 22 and improving the quality of the RO filter membrane 22.
  • the RO filter element assembly 20 further includes an annular inner cover 23.
  • the lower surface of the annular inner cover 23 seals against the upper end surface of the RO filter membrane 22.
  • annular groove with an open lower surface is formed at the bottom of the annular inner cover 23, the annular groove extends along the circumferential direction of the RO filter membrane 22, and the upper end surface of the RO filter membrane 22 closes the annular groove to define
  • a waste water port 232 is provided on the annular inner cover 23, and a waste water channel connecting the waste water chamber 231 and the waste water port 232 is defined in the annular inner cover 23.
  • the RO filter membrane 22 separates the waste water during the filtration process, and the waste water can be guided to be discharged by setting the waste water port 232, the waste water chamber 231 and the waste water channel.
  • Limiting the waste water chamber 231 on the annular inner cover 23 can prevent the waste water from striking into the central tube 21, thereby improving the quality of the filtered water flow. Moreover, the waste water of the RO filter element assembly 20 is discharged from the end of the RO filter element assembly 20, and the waste water chamber 231 is limited to the annular inner cover 23, which can provide convenience for the waste water to enter the waste water chamber 231, and the structure is simple, eliminating the RO filter element assembly 20 and The complicated piping between the waste water chambers 231 simplifies the structural design and waterway design of the composite filter element 100.
  • a composite filter element 100 includes a housing 10, an RO filter assembly 20, an inner tube 30, and a built-in filter material described according to the above embodiments.
  • the RO filter assembly 20 is provided in the housing 10, and the inner tube 30 is detachably provided in the filter material installation cavity 210, and the built-in filter material is provided in the inner tube 30.
  • the center tube 21 is provided in the housing 10, the RO filter membrane 22 is wound around the center tube 21, the center tube 21 defines a filter material installation cavity 210, and the inner tube 30 is provided in the filter material installation cavity 210.
  • the built-in filter material is provided in the inner tube 30, and the built-in filter material may be the second filter element assembly 40.
  • the inner tube 30 can separate the filter material installation cavity 210 into an inner cavity and an outer cavity
  • the central tube 21 and the RO filter membrane 22 constitute an RO filter element assembly 20
  • the RO filter element assembly 20 is provided in the outer cavity
  • the second filter element assembly 40 is provided in the In the cavity, since one side of the filter material installation cavity 210 is open, the water flow can not only pass through the second filter element assembly 40 to be filtered by the second filter element assembly 40, but also enter the inner cavity through the open opening of the filter material installation cavity 210, and After filtering by the second filter element assembly 40.
  • the second filter element assembly 40 is provided in the inner tube 30, and the inner tube 30 is provided in the RO filter element assembly 20, that is, the RO filter element assembly 20, the inner tube 30 and the second filter element assembly 40 are nested in sequence, which can make full use of the space in the RO filter element assembly 20, and the inner tube 30 is used to separate the RO filter element assembly 20 and the second filter element assembly 40 into the housing 10, not only lifting
  • the filtering effect of the composite filter element 100 is improved, and the space that originally accommodated one filter element can accommodate two filter tubes, saving space occupied by the RO filter element assembly 20 and the second filter element assembly 40.
  • the composite filter element 100 according to an embodiment of the third aspect of the present application includes the RO filter element assembly 20 described according to the above embodiment.
  • the composite filter element 100 includes: a housing 10, an RO filter element assembly 20, an inner tube 30, a second filter assembly 20, and a waste water plug 14.
  • the housing 10 is provided with a waste water outlet 115, and the RO filter element assembly 20 generates pure water and waste water during use.
  • the pure water is for drinking by the user, and the waste water can be used for other purposes.
  • the RO filter element assembly 20 is provided in the housing 10, and a wastewater chamber 231 communicating with the wastewater outlet 115 is defined between the RO filter element assembly 20 and the housing 10.
  • the wastewater generated by the RO filter element assembly 20 is collected in the wastewater chamber 231 and passes through the wastewater outlet 115 discharge.
  • the inner tube 30 is provided in the RO filter element assembly 20, and the second filter element 20 is provided in the inner tube 30.
  • the space occupied by the second filter element assembly 40 can be saved and can be improved The water purification effect of the composite filter 100.
  • the waste water plug 14 is inserted into the waste water outlet 115.
  • the waste water plug 14 has a similar function to the waste water valve in the prior art.
  • the waste water plug 14 generates a certain resistance to the water in the waste water chamber 231, for example, When the water pressure in the waste water chamber 231 reaches a predetermined pressure value, the waste water plug 14 is turned on, and the waste water is discharged from the waste water chamber 231.
  • the filtering effect of the RO filter element assembly 20 can be improved, and the waste water plug 14 Set on the housing 10, when the composite filter element 100 reaches the life cycle for replacement, the wastewater plug 14 is replaced together to ensure that the wastewater plug 14 on the composite filter element 100 is regularly replaced to prevent the wastewater plug 14 from being replaced for a long time, and damage to the composite filter element 100 is normal jobs.
  • the installation of the waste water plug 14 on the housing 10 can facilitate the replacement of the waste water plug 14 and reduce the difficulty of the replacement process of the waste water plug 14.
  • the waste water plug 14 is integrally formed with the housing 10, for example, the waste water plug 14 may be integrated on the housing 10.
  • the connection strength and stability of the waste water plug 14 and the housing 10 can be improved, and the waste water plug 14 can be prevented from detaching, and the connection mechanism between the waste water plug 14 and the housing 10 can be saved, which is beneficial to improve the assembly efficiency of the waste water plug 14, Furthermore, the stability of the integrally formed mechanism is enhanced, and the service life of the composite filter element 100 can be extended.
  • the waste plug 14 includes a sleeve 140 and a plurality of capillary tubes 143.
  • the sleeve 140 is inserted into the waste water outlet 115 and connected to the housing 10.
  • the capillary tube 143 is provided on the inner wall of the sleeve 140 and extends along the sleeve The tube 140 extends radially inward.
  • capillaries 143 There are a large number of capillaries 143.
  • a plurality of capillaries 143 are arranged along the circumferential direction of the sleeve 140 to form a group of capillaries 143.
  • the plurality of capillaries 143 are filled in the sleeve 140 along the axial direction of the sleeve 140.
  • the waste water plug 14 of the above structure has a simple structure and is easy to manufacture, and can effectively improve the water purification effect of the RO filter element assembly 20.
  • the sleeve 140 includes: a plug-in section 141 and a guide section 142, one end of the plug-in section 141 is inserted into the waste water outlet 115, and the plug-in section 141 is along the axis of the waste water outlet 115 Extending in the direction, the guide section 142 communicates with the other end of the plug section 141.
  • a capillary 143 is provided in both the insertion section 141 and the guide section 142, or the capillary 143 may be provided only in one of the insertion section 141 and the guide section 142.
  • the sleeve 140 of the above structure can not only increase the water pressure of the waste water outlet 115, but also insert the insertion section 141 in the waste water outlet 115, which has good stability and tightness.
  • the guide section 142 is suitable for connecting the waste water outlet 115 and the waste water drainage pipe Among them, the guide section 142 is perpendicular to the insertion section 141, which facilitates the connection of the wastewater drainage pipe to the guide section 142, and can provide convenience for wastewater discharge.
  • the capillary 143 is provided in the insertion section 141, and the radial inner end of the capillary 143 cooperates to define a guide channel 1431, and the guide channel 1431 has a small diameter.
  • the guide section 142 is provided with a water guide column 1421 extending along the axial direction of the guide section 142.
  • the water guide column 1421 closes the guide channel 1431, and the water guide column 1421 closes the guide channel At 1431, the water flow passes through the capillary 143 from the insertion section 141 to the guide section 142, so that the waste water plug 14 can pressurize the waste water chamber 231.
  • a tap water inlet 111, a purified water outlet 112, a purified water inlet 113 and a pure water outlet 114 are provided on the housing 10.
  • the outer wall of the RO filter element assembly 20 and the inner wall of the housing 10 define a first water purification chamber 51 communicating with the purified water inlet 113.
  • the inner wall of the RO filter element assembly 20 and the outer wall of the inner tube 30 define a pure water chamber communicating with the pure water outlet 114 52.
  • the inner wall of the inner tube 30 and the outer wall of the second filter element assembly 40 define a tap water cavity 53 that communicates with the tap water inlet 111.
  • the second filter element assembly 40 defines a second water purification cavity 54 that communicates with the water purification outlet 112.
  • the water flow enters the tap water chamber 53 through the tap water inlet 111.
  • the water flow in the tap water chamber 53 enters the second clean water chamber 54 through the filtering action of the second filter element assembly 40 and flows out through the clean water outlet 112.
  • the clean water flowing out passes through the role of the booster pump Enter the first water purification chamber 51 through the water purification inlet 113.
  • the water flow in the first water purification chamber 51 enters the pure water chamber 52 through the filtering action of the RO filter assembly 20.
  • the water flow in the pure water chamber 52 flows out through the pure water outlet 114 for supply User drinking.
  • the gap between the inner wall of the housing 10 and the outer wall of the RO filter element assembly 20 is 1.2 mm
  • the gap between the inner wall of the RO filter element assembly 20 and the outer wall of the inner tube 30 is 1.2 mm
  • the inner wall of the inner tube 30 and the second The gap between the outer walls of the filter element assembly 40 is 1.2 mm.
  • the inner wall of the housing 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 cooperate to define the first water purification chamber 51 2.
  • the second water purification chamber 54, the tap water chamber 53 and the pure water chamber 52 have a simple structure and are easy to implement, which is beneficial to simplify the structural design of the composite filter element 100 and can reduce the production cost of the composite filter element 100.
  • the RO filter element assembly 20 includes: a central tube 21, an RO filter membrane 22 and an annular inner cover 23.
  • the central tube 21 extends along the axial direction of the housing 10.
  • the upper end of the central tube 21 is open to define a filter material installation cavity 210, and the upper end of the filter material installation cavity 210 is open.
  • FIGS. 12-14 the upper end of the central tube 21 is open to define a filter material installation cavity 210, and the upper end of the filter material installation cavity 210 is open.
  • the inner tube 30 is provided in the center tube 21, the pure water chamber 52 is defined between the inner wall of the center tube 21 and the outer wall of the inner tube 30, and the RO filter membrane 22 is a reverse osmosis filter membrane, RO
  • the filter membrane 22 is sleeved on the central tube 21 and extends along the axial direction of the central tube 21.
  • the ring-shaped inner cover 23 is sleeved on the central tube 21, and the inner peripheral edge of the ring-shaped inner cover 23 is in sealing contact with the upper edge of the inner tube 30, and the lower surface of the ring-shaped inner cover 23 is in sealing fit with the upper end surface of the RO filter membrane 22.
  • the wall of the center tube 21 is formed with a pure water through hole 2111, the pure water through hole 2111 penetrates the wall of the center tube 21 along the thickness direction of the wall of the center tube 21, and the water flow enters the RO filter film 22 from the lower end of the RO filter film 22
  • the RO filter membrane 22 separates the water flow into waste water and pure water.
  • 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 cavity 52 through the pure water through hole 2111, and is discharged through the pure water outlet 114 for the user to drink.
  • the annular inner cover 23 is provided with a waste water port 232.
  • the annular inner cover 23 defines a waste water tank with an open lower surface.
  • the waste water tank extends along the circumferential direction of the annular inner cover 23, and RO filters
  • the upper end face of the membrane 22 cooperates with the annular inner cover 23 to close the waste water tank to form a waste water chamber 231, and a waste water channel connecting the waste water chamber 231 and the waste water outlet 115 is defined in the annular inner cover 23.
  • the second filter element assembly 40 is a PAC filter element.
  • the second filter element assembly 40 includes: a PAC skeleton 41 and a PAC filter membrane 42.
  • the PAC skeleton 41 is located in and along the inner tube 30.
  • the axial extension of the tube 30, the PAC filter 42 is sleeved on the PAC skeleton 41 and extends along the axial direction of the PAC skeleton 41.
  • the PAC filter 42 is a tubular filter made of polyaluminum chloride material.
  • the PAC filter membrane 52 is a roll made of non-woven fabric, polypropylene layer, and carbon fiber, and has a long service life. When used in the filtration of tap water, it can initially remove sediment, rust and residual chlorine.
  • the PAC filter membrane 52 can also be made by rolling only one or two materials of the filter layer, which is not specifically limited here.
  • the thickness of the PAC filter 42 is greater than 10 mm.
  • the PAC skeleton 41 defines a second water purification 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 the tap water inlet 111
  • the water flows through the PAC filter 42 and
  • the filtering action of the PAC filter 42 flows out from the inner wall of the PAC skeleton 41 into the second water purification chamber 54, and then flows out from the water purification outlet 112.
  • the PAC filter membrane 42 and the PAC skeleton 41 constitute the second filter element assembly 40 and are arranged in the inner tube 30, reducing the second filter element assembly
  • the diameter of 40 can further reduce the occupied space of the second filter element assembly 40, and can reduce the volume and production materials of the PAC filter 42, which is beneficial to reduce costs.
  • the second filter element assembly 40 further includes: a PAC upper end cap 43 and a PAC lower end cap 44, the PAC upper end cap 43 is sleeved on the upper end of the PAC skeleton 41, and the PAC upper end cap 43
  • the lower surface seals against the upper end surface of the PAC filter membrane 42
  • the PAC lower end cover 44 is sleeved on the lower end of the PAC skeleton 41
  • the upper surface of the PAC lower end cover 44 seals against the lower end surface of the PAC filter membrane 42.
  • the water outlet pipe 60 penetrates the PAC upper end cap 43 and the PAC lower end cap 44, and the outer periphery of the PAC lower end cap 44 is sealingly fitted with the inner peripheral wall of the inner tube 30.
  • the tightness of the upper and lower ends of the PAC filter 42 can be improved to prevent the water flow in the PAC filter 42 from flowing out from the upper or lower end of the PAC filter 42 and can improve Airtightness.
  • the outer edge of the upper end cap 43 of the PAC is formed with an upwardly turned down flange 431.
  • the outer wall of 431 and the inner wall of the inner tube 30 define a tap water channel, and the water flow enters the tap water cavity 53 from the tap water inlet 111 through the tap water channel.
  • the outer edge of the lower end cap 44 of the PAC is formed with an upwardly folded lower flange 441, and the inner wall of the lower flange 441 abuts against the outer peripheral wall of the PAC filter 42.
  • the performance of the second filter element assembly 40 can be improved, and the tightness and reliability of the tap water chamber 53 can be improved to prevent water leakage.
  • an activated carbon filter element 50 and a water outlet pipe 60.
  • the activated carbon filter element 50 is provided in the central tube 21 and sealingly abuts between the lower end of the inner tube 30 and the bottom wall of the filter material installation cavity 210,
  • the activated carbon filter element 50 is provided in the pure water cavity 52.
  • the activated carbon filter element 50 divides the pure water cavity 52 into an original pure water cavity 522 located outside the activated carbon filter element 50 and a water outlet cavity 521 located inside the activated carbon filter element 50.
  • the outlet pipe 60 extends along the axial direction of the inner pipe 30 and penetrates the inner pipe 30. One end of the outlet pipe 60 (the lower end shown in FIG. 4) communicates with the outlet chamber 521, and the other end of the outlet pipe 60 (the upper end shown in FIG. 4) ) Connect to the pure water outlet 114.
  • the pure water filtered by the RO filter assembly 20 enters the original pure water cavity 522, the water flow in the original pure water cavity 522 passes through the activated carbon filter element 50, and enters the water outlet cavity 521 through the filtering action of the activated carbon filter element 50, whereby Further clarify the impurities or odors in the water.
  • the water filtered by the RO filter assembly 20 becomes weakly acidic and has a poor taste, which is not suitable for users to drink directly.
  • the filtering effect of the active carbon filter can further improve the quality of pure water and enhance the taste of drinking water.
  • the activated carbon filter element 50 and the inner tube 30 are arranged along the axial direction of the filter material installation cavity 210.
  • the activated carbon filter element 50 is provided at the bottom of the filter material installation cavity 210, and the inner tube 30 is provided at the top of the activated carbon filter element 50.
  • the water outlet 114 is located at the top of the housing 10.
  • the activated carbon filter element 50 and the inner tube 30 arranged along the axial direction of the RO filter element assembly 20 can make full use of the space of the filter material installation cavity 210, which is helpful to reduce the inner diameter of the filter material installation cavity 210, and thus the diameter and diameter of the RO filter element assembly 20 can be reduced.
  • the volume, and the structure of the activated carbon filter element 50 and the inner tube 30 of the above structure are simple and easy to assemble.
  • the pure water outlet 114 is located above the inner tube 30, and the water outlet cavity 521 is located in the activated carbon filter 50 and below the inner tube 30.
  • the water outlet tube 60 By providing the water outlet tube 60, the water flow in the water outlet cavity 521 can be facilitated from the pure water outlet 114, Moreover, the structure of the water outlet pipe 60 is simple and easy to implement.
  • the provision of the activated carbon filter element 50 in the pure water chamber 52 can further increase the degree of compounding of the composite filter element 100 and enhance the filtering effect of the composite filter element 100 on water flow, and compared with the provision of the activated carbon filter element 50 alone, not only can simplify the compounding
  • the water flow design of the filter element 100 can also reduce the volume of the composite filter element 100.
  • the PAC skeleton 41 is tubular, and the PAC skeleton 41 is sleeved on the outlet pipe 60.
  • the outer wall of the outlet pipe 60 and the inner wall of the PAC skeleton 41 define a second water purifying cavity 54.
  • a number of edges are formed on the wall of the PAC skeleton 41 The thickness direction of the wall of the PAC skeleton 41 penetrates the hole of the wall of the PAC skeleton 41.
  • the water flow in the PAC filter membrane 42 can be promoted to enter the second water purification chamber 54 through the holes, and the PAC skeleton 41 is sleeved on the outlet pipe 60, which can further save the outlet pipe 60
  • the occupied space is conducive to further reducing the volume of the composite filter element 100.
  • the lower end cap 44 of the PAC is sleeved on the outlet pipe 60, and the inner peripheral wall of the lower end cap 44 of the PAC is connected to the outer peripheral wall of the outlet pipe 60, thereby improving the airtightness of the second water purification chamber 54. It is integrally formed with the water outlet pipe 60.
  • the structure of the center tube 21 has been described above, and the lower end of the activated carbon filter element 50 stops against the upper surface of the lower cover plate 212.
  • the central tube 21 is formed into a cylindrical shape with an open upper end and a closed lower end.
  • the inner wall of the surrounding plate 211 and the upper surface of the lower cover plate 212 cooperate with the outer surface of the inner tube 30 to define a pure water chamber 52.
  • a pure water through hole 2111 is formed on the wall of the center tube 21, and the pure water through hole 2111 penetrates the wall of the center tube 21 along the thickness direction of the wall of the center tube 21, and the water flow enters the RO filter film 22 from the lower end of the RO filter film 22, RO
  • the filter membrane 22 separates 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.
  • a water guide groove 2112 communicating with the pure water through hole 2111 is formed on the outer peripheral wall of the surrounding plate 211.
  • the water guiding groove 2112 is recessed inward relative to the outer peripheral wall of the surrounding plate 211, and the water flow filtered by the RO filter membrane 22 passes through The water guiding channel 2112 flows into the pure water through hole 2111, and then collects in the original pure water cavity 521, then passes through the filtration of the activated carbon filter 50 into the water outlet cavity 521, and then is discharged from the pure water outlet 114.
  • the RO filter membrane 22 is wound around the surrounding plate 211, by providing the water guide groove 2112 on the surrounding plate 211, the flow efficiency of the outflow of water from the RO filter membrane 22 can be increased, and the water outlet efficiency of the RO filter membrane 22 can be increased, thereby improving the RO Water purification efficiency of the filter element assembly.
  • the central tube 21 of the above structure is closed at the lower end, which can prevent the pure water flow from leaking from the lower end of the pure water chamber 52. During the assembly process of the RO filter element, only need to pay attention to the tightness of the upper end of the central tube 21.
  • the inner wall of the surrounding plate 211 is formed with a supporting platform 213 projecting inward in the radial direction of the surrounding plate 211, the supporting platform 213 has an upper surface, and the lower end of the inner tube 30 stops Abutting against the upper surface of the support table 213, the activated carbon filter element 50 is provided below the inner tube 30 and is located inside the support table 213.
  • the assembly of the inner tube 30 can be facilitated.
  • the support effect of the support table 213 on the inner tube 30 can improve the assembly stability of the inner tube 30, and can reduce the
  • the squeezing effect of the inner tube 30 on the activated carbon filter element 50 prevents the excessive pressure of the inner tube 30 from damaging the activated carbon filter element 50, which is beneficial to prolong the service life of the activated carbon filter element 50.
  • the lower end of the support table 213 stops against the upper surface of the lower cover plate 212 of the central tube 21, and the activated carbon filter element 50 is provided in the support table 213.
  • the housing 10 includes: a barrel 11 and a lower cover 12, the bottom of the barrel 11 is open, and the RO filter element assembly 20 and the second filter element assembly 40 are disposed in the barrel 11 ,
  • the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the pure water outlet 114 are all provided on the top of the barrel 11,
  • the lower cover 12 is connected to the barrel 11 to close the open opening of the barrel 11, and the lower cover 12
  • the upper surface is in sealing contact with the lower end surface of the RO filter element assembly 20.
  • an annular inner cover 23 is provided on the top of the inner cavity of the barrel 11, and the lower surface of the annular inner cover 23 abuts the upper end surface of the RO filter membrane 22.
  • the housing 10 is further provided with four adapters 13.
  • the four adapters 13 are correspondingly inserted into the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the pure water outlet In 114, the adapter 13 is provided to facilitate the assembly of the water channel of the composite filter element 100, and the airtightness of the water channel is improved.
  • the housing 10 is also provided with a decorative cover 15, which is placed on the top of the barrel 11, the tap water inlet 111, the purified water outlet 112, the purified water inlet 113, and pure water Both the outlet 114 and the waste water outlet 115 are housed in the decorative cover 15, thereby improving the uniformity of the appearance of the composite filter element 100.
  • a handle 16 is also provided on the top of the barrel 11, and a first connection point and a second connection point are arranged on the side wall of the barrel 11, and the handle 16 One end is connected to the first connection point, and the other end is connected to the second connection point.
  • the RO filter membrane 22 is first wound around the center tube 21, and then the activated carbon filter element 50 is set in the center tube 21, and then the inner tube 30 is assembled in the center tube 21.
  • the water pipe 60 and the PAC annular upper end cover 43 extend from the middle of the annular inner cover 23.
  • the RO filter element assembly 20 is inserted into the barrel 11, and the top wall of the cavity of the barrel 11 is provided with a first water channel, a second water channel, a third water channel, a fourth water channel, and a fifth water channel.
  • the water outlet 114 and the water outlet pipe 60 one end of the second water channel communicates with the tap water inlet 111, and the other end communicates with the passage between the outer peripheral wall of the PAC annular upper end cover 43 and the inner peripheral wall of the annular inner cover 23; one end of the third water channel communicates with the purified water outlet 112, the other end communicates with the channel between the inner peripheral wall of the PAC ring-shaped upper end cap 43 and the outer peripheral wall of the outlet pipe 60, one end of the fourth water channel communicates with the purified water inlet 113, and the other end communicates with the outer peripheral wall of the RO filter membrane 22 and the barrel 11
  • the channel between the inner peripheral walls and the fifth water channel connect the waste water outlet 115 and the waste water port 232.
  • the central axis of the RO filter element assembly 20, the central axis of the second filter element assembly 40, the central axis of the inner tube 30, and the central axis of the outlet pipe 60 coincide with the central axis of the housing 10.
  • the water outlet pipe 60, the second filter element assembly 40, the inner tube 30, the RO filter element assembly 20 and the housing 10 are nested in this order, so that the water outlet pipe 60, the second filter element assembly 40, the inner tube 30 and the
  • the occupied space of the RO filter element assembly 20 improves the utilization efficiency of the internal space of the composite filter element 100, which in turn can reduce the volume of the housing 10, and provides convenience for the use and assembly of the composite filter element 100.
  • a water treatment device includes the composite filter element 100, the booster pump, and the tank described in the above embodiments.
  • the tank is provided with a water supply device, a water outlet and a drain.
  • the composite filter 100 and the booster pump are provided in the tank.
  • the water supply device is connected to the tap water inlet 111 to supply water to the water treatment device.
  • the booster pump is connected to the water purification outlet Between 112 and the water purification inlet 113, it is used to pressurize the water flowing out of the second water purification chamber 54 and pump it into the first water purification chamber 51, the water outlet is connected to the pure water outlet 114 for the user to take water, and the drain is connected to the waste water
  • the outlet 115 is used to discharge wastewater.
  • the water treatment device includes the composite filter element 100 described in the above embodiment.
  • the volume of the water treatment device can be reduced, the occupied space can be saved, and the water quality can be improved , Which provides convenience for users.

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  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
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  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

一种RO滤芯组件(20)，包括：中心管(21)和RO滤膜(22)，中心管(21)内限定有滤材安装腔，中心管(21)的壁上形成有纯水通孔(2111)，RO滤膜(22)套设在中心管(21)上，且RO滤膜(22)覆盖纯水通孔(2111)；还公开了具有RO滤芯组件(20)的复合滤芯(100)、水处理装置。

Description

RO滤芯组件和具有其的复合滤芯、水处理装置
相关申请的交叉引用
本申请基于申请号为201811291602.1、申请日为2018年10月31日的中国专利申请、申请号为201811290069.7、申请日为2018年10月31日的中国专利申请、申请号为201821790634.1、申请日为2018年10月31日的中国专利申请以及申请号为201821792136.0、申请日为2018年10月31日的中国专利申请提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请属于家用电器技术领域，具体地，涉及一种RO滤芯组件和具有其的复合滤芯、水处理装置。
背景技术
相关技术中，RO滤芯组件的中心管仅用于引导纯水，不能容纳其他部件，中心管的内部空间利用效率较低。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。
为此，本申请提出一种RO滤芯组件，所述复合滤芯的体积较小，节省占用空间。
本申请还提出一种具有上述RO滤芯组件的复合滤芯。
本申请还提出一种具有上述复合滤芯的水处理装置。
根据本申请第一方面实施例的RO滤芯组件，包括：中心管和RO滤膜，所述中心管内限定有滤材安装腔，所述中心管的壁上形成有纯水通孔，所述RO滤膜套设在所述中心管上，且所述RO滤膜覆盖所述纯水通孔。
根据本申请实施例的RO滤芯组件，通过在中心管内限定出滤材安装腔，可以在滤材安装腔内容纳内置滤材，从而为多种滤芯的复合提供方便，而且可以充分利用RO滤芯组件的内部空间，进而可以缩小复合滤芯的整体体积，而且可以提升复合滤芯的过滤效果。
根据本申请一个实施例的RO滤芯组件，所述滤材安装腔的直径大于30mm。
根据本申请一个实施例的RO滤芯组件，所述RO滤膜沿所述中心管的轴向延伸。
根据本申请的一个实施例，所述中心管包括：围板和下盖板，所述围板形成为两端敞开的筒状，所述纯水通孔设在所述围板上，所述RO滤膜套设在所述围板，所述下盖板设在所述围板内且位于所述围板的下部，所述下盖板封闭所述围板的下端限定出所述滤材安装腔。
根据本申请的一个实施例，所述围板的外周壁上形成有连通所述纯水通孔的导水槽。
根据本申请的一个实施例，所述导水槽沿所述围板的周向延伸。
根据本申请的一个实施例，所述导水槽沿所述围板的轴向延伸。
根据本申请的一个实施例，所述RO滤膜形成为绕设在所述围板上的片状。
根据本申请的一个实施例，所述下盖板的下端面形成有治具卡槽，所述治具卡槽适于配合治具驱动所述中心管旋转绕设形成所述RO滤膜。
根据本申请的一个实施例，所述围板的内壁上设有支撑台，所述支撑台沿所述围板的径向向内凸出。
根据本申请的一个实施例，所述围板、所述下盖板与所述支撑台一体成型。
根据本申请第二方面实施例的复合滤芯，包括壳体、根据上述实施例所述的RO滤芯组件、内管和内置滤材，所述内管可拆卸地设在所述滤材安装腔内，所述内管设在所述滤材安装腔内，所述内置滤材设在所述内管内。
根据本申请第二方面实施例的复合滤芯，将内置滤材设在内管内，并将内管设在RO滤芯组件内，可以充分利用RO滤芯组件内的空间，而且利用内管将RO滤芯组件和第二滤芯组件间隔开复合在壳体内，不仅提升了复合滤芯的过滤效果，而且原来容纳一个滤芯的空间可以容纳两个过滤件，节省了占用空间。
根据本申请第三方面实施例的复合滤芯，包括：壳体、RO滤芯组件、内管、第二过滤管和废水塞，所述壳体上设有废水出口，所述RO滤芯组件设在所述壳体内，所述RO滤芯组件为根据上述实施例所述的RO滤芯组件，所述RO滤芯组件与所述壳体之间限定有连通所述废水出口的废水腔，所述内管设在所述RO滤芯组件内，所述第二过滤管设在所述内管内，所述废水塞插接在所述废水出口内。
根据本申请第三方面实施例的复合滤芯，不仅可以节省占用空间，而且通过在废水出口上设置废水塞，利用废水塞提升废水腔的压力，进而可以提升RO滤芯组件的过滤效果，而且废水塞设在壳体上，当复合滤芯到达使用周期进行更换时，废水塞一同更换，保证复合滤芯上的废水塞定期更换，防止废水塞长期不更换，损坏影响复合滤芯正常工 作。而且将废水塞设在壳体上，可以为废水塞的更换提供方便，降低了废水塞的更换工艺的难度。
根据本申请一个实施例的复合滤芯，所述废水塞与所述壳体一体成型。
根据本申请一个实施例的复合滤芯，所述废水塞包括：套管和多个毛细管，所述套管插接在所述废水出口内并与所述壳体相连，所述毛细管设在所述套管的内壁上并沿所述套管的径向向内延伸。
根据本申请的一个实施例，所述套管包括：插接段和导向段，所述插接段插接在所述废水出口内并沿所述废水出口的轴向延伸，所述导向段连通所述插接段。
根据本申请的一个实施例，所述毛细管设在所述插接段内，所述毛细管的径向内端配合限定出导流通道，所述导向段内设有沿所述导向段的轴向延伸的导水柱，所述导水柱封闭所述导流通道。
根据本申请的一个实施例，所述导向段垂直于所述插接段。
根据本申请的一个实施例的复合滤芯，所述壳体上设有自来水入口、净水出口、净水入口和纯水出口；所述RO滤芯组件的外壁与所述壳体的内壁限定出连通所述净水入口的第一净水腔；所述RO滤芯组件的内壁与所述内管的外壁限定出连通所述纯水出口的纯水腔；所述内管的内壁与所述第二过滤管的外壁限定出连通所述自来水入口的自来水腔；所述第二过滤管内限定有连通所述净水出口的第二净水腔。
根据本申请的一个实施例，所述壳体包括：筒体和下盖，所述筒体的底部敞开，所述内管、所述RO滤芯组件和所述第二过滤管设在所述筒体内，所述自来水入口、所述净水出口、所述净水入口、所述纯水出口和所述废水出口均设在所述筒体的顶部，所述下盖罩设在所述筒体的底部，所述下盖与所述筒体相连以封闭所述筒体的敞开口。
根据本申请的一个实施例，所述滤材安装腔的上端敞开，所述RO滤芯组件包括：环形内盖，所述环形内盖套设在所述中心管上，所述环形内盖的内周沿与所述内管的上端沿相连，且所述环形内盖的下端面与所述RO滤膜的上端面止抵。
根据本申请的一个实施例，所述环形内盖内限定有向下敞开的废水槽，所述RO滤膜的上端面与所述环形内盖配合封闭所述废水槽形成废水腔，所述内盖顶部设有连通所述废水腔与所述废水出口的废水通道。
根据本申请的一个实施例，所述第二过滤管包括：PAC骨架、PAC滤膜、PAC上端盖和PAC下端盖，所述PAC骨架位于所述内管内并沿所述内管的轴向延伸，所述PAC滤膜套设在所述PAC骨架上并沿所述PAC骨架的轴向延伸，所述PAC上端盖套设在所述PAC骨架的上部，所述PAC上端盖的下表面密封抵接所述PAC滤膜的上端面，所述PAC下端 盖套设在所述PAC骨架的下部，所述PAC下端盖的上表面密封抵接所述PAC滤膜的下端面。
根据本申请的一个实施例，所述复合滤芯还包括：活性炭滤芯，所述活性炭滤芯设在所述纯水腔内且位于所述内管的下方，所述活性炭滤芯将所述纯水腔分隔成位于所述活性炭滤芯外的原纯水腔和位于所述活性炭滤芯内的出水腔，所述出水腔连通所述纯水出口。
根据本申请的一个实施例，所述纯水出口位于所述壳体的顶部，所述复合滤芯还包括：出水管，所述出水管沿所述内管的轴向贯穿所述内管，所述出水管的上端连通所述纯水出口，所述出水管的下端连通所述出水腔。
根据本申请第四方面实施例的水处理装置，包括根据上述实施例所述的复合滤芯。
根据本申请第四方面实施例的水处理装置，通过节省复合滤芯的占用空间，可以使水处理装置更加小型化、通用化。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请实施例的复合滤芯的结构示意图；
图2是根据本申请实施例的复合滤芯的局部结构示意图；
图3是沿图1中A-A线的剖视图；
图4是沿图2中B-B线的剖视图；
图5是图4中机构的爆炸图；
图6是根据本申请实施例的复合滤芯的壳体的爆炸图；
图7是根据本申请实施例的内管和活性炭滤芯的配合示意图；
图8是沿图7中C-C线的剖视图；
图9是根据本申请实施例的环形内盖的结构示意图；
图10是根据本申请实施例的环形内盖的剖视图；
图11是根据本申请实施例的环形内盖的俯视图；
图12是根据本申请实施例的中心管的结构示意图；
图13是根据本申请实施例的中心管的剖视图；
图14是根据本申请实施例的中心管的侧视图；
图15是根据本申请实施例的废水塞的结构示意图；
图16是根据本申请实施例的废水塞的主视图；
图17是沿图16中D-D线的剖视图；
图18是沿图16中E-E线的剖视图。
附图标记：
100：复合滤芯；
10：壳体；11：筒体；111：自来水入口；112：净水出口；113：净水入口；114：纯水出口；115：废水出口；12：下盖；13：转接头；14：废水塞；140：套管；141：插接段；142：导向段；1421：导水柱；143：毛细管；1431：导流通道；15：装饰盖；16：提手。
20：RO滤芯组件；21：中心管；210：滤材安装腔；211：围板；2111：纯水通孔；2112：导水槽；212：下盖板；213：支撑台；214：治具卡槽；22：RO滤膜；23：环形内盖；231：废水腔；232：废水口；
30：内管；
40：第二滤芯组件；41：PAC骨架；42：PAC滤膜；43：PAC上端盖；431：上翻边431；44：PAC下端盖；441：下翻边441；
50：活性炭滤芯；51：第一净水腔；52：纯水腔；521：出水腔；522：原纯水腔；53：自来水腔；54：第二净水腔；
60：出水管。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方 位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
下面参考图1-图18描述根据本申请实施例的RO滤芯组件20和具有其的复合滤芯100、水处理装置。
如图1-4所示，根据本申请实施例的RO滤芯组件20包括：中心管21和RO滤膜22。
具体而言，中心管21形成为一端敞开的管状，中心管21内限定有滤材安装腔210，滤材安装腔210的直径大于30mm，RO滤膜22套设在中心管21上，且RO滤膜22覆盖纯水通孔2111。
通过在中心管21内设置滤材安装腔210，可以在滤材安装腔210内装配适合的滤材，滤材安装腔210内的滤材配合中心管21外的RO滤膜22，可以提升RO滤膜22和滤材的水流过滤效果。
其中，中心管21的壁上形成有纯水通孔2111，纯水通孔2111沿中心管21的壁的厚度方向贯穿中心管21的壁，RO滤膜22过滤后的水流通过中心管21上的纯水通孔2111流出，水流阻力较小。
由此，根据本申请实施例的RO滤芯组件20，通过在中心管21内限定出滤材安装腔210，可以在滤材安装腔210内容纳内置滤材，从而为多种滤芯的复合提供方便，而且可以充分利用RO滤芯组件20的内部空间，进而可以缩小复合滤芯100的整体体积，而且可以提升复合滤芯100的过滤效果。
在本实施例中，RO滤膜22沿中心管21的轴向延伸，沿中心管21的轴向延伸的RO滤膜22，可以增加RO滤膜22的膜面积，进而可以提升RO滤膜22的过滤能力和过滤效果。
如图12-14所示，在本实施例中，中心管21包括：围板211和下盖板212，围板211形成为两端敞开的筒状，纯水通孔2111设在围板211上，RO滤膜22套设在围板211，下盖板212设在围板211内且位于围板211的下部，下盖板212封闭围板211的下端敞口并与围板211配合限定出滤材安装腔210。
上述结构的中心管21中，滤材安装腔210的下端可封闭，滤材装配在滤材安装腔210内时，密封效果好，防止水流从中心管21的下端流出。而且结构简单，装配方便，生产成本较低。
如图12所示，围板211的外周壁上形成有连通纯水通孔2111的导水槽2112，导水槽2112相对于围板211的外周壁向内凹陷，RO滤膜22过滤后的水流通过导水槽2112流入纯水通孔2111，进而汇集在滤材安装腔210内，然后导出。
由于RO滤膜22绕设在围板211上，通过在围板211上设置导水槽2112，可以增加RO滤膜22中导出水流的流动效率，增加RO滤膜22的出水效率，进而可以提升RO滤芯组件20的净水效率。
如图12所示，导水槽2112沿围板211的周向延伸，也就是说，导水槽2112形成为沿围板211周向延伸的环形，纯水通孔2111设在导水槽2112内，由此可以进一步增加导水槽2112的长度，进一步提升了RO滤膜22的出水效率，而且可以保证RO滤膜22在周向上出水效率均匀，防止局部出水受阻影响RO滤膜22的净水效率。
如图12所示，导水槽2112也可以沿围板211的轴向延伸，纯水通孔2111沿围板211的轴向间隔开设置，导水槽2112依次连通个纯水通孔2111。
在一些实施例中，导水槽2112为多个，部分导水槽2112沿围板211的周向延伸，多个导水槽2111沿围板211的轴向间隔开设置，部分导水槽2112沿围板211的轴向延伸，沿围板211轴向延伸的导水槽2112依次连通沿围板211周向延伸的导水槽2111，导水槽2111形成为布置在围板211外周壁上的导水网。纯水通孔2111可以设在沿围板211轴向延伸的导水槽2112和沿围板211周向延伸的导水槽2112的交叉处。
如图13所示，在本实施例中，围板211的内壁形成有沿围板211的径向向内凸出的支撑台213，支撑台213具有上表面，滤材的下端可以止抵在支撑台213的上表面上。
通过在围板211上设置与内管30配合的支撑台213，可以为内置滤材的装配提供方便，支撑台213对滤材的支撑作用可以提升内管30的装配稳定性。
进一步地，支撑台213沿围板211的周向延伸，也就是说，支撑台213形成为沿围板211的周向延伸的环形，支撑台213也可以沿围板211的轴向延伸形成为管状，支撑台213的下端止抵中心管21的下盖板212的上表面。
管状支撑台213可以提升滤材的受力均匀性，防止滤材在滤材安装腔210内因局部受力不均匀损坏或倾斜。其中，支撑台213、围板211与下盖板212一体成型，也就是说中心管21是一体成型件，一体成型的中心管21可以提升支撑台213、围板211与下盖板212之间的连接稳定性和连接强度，进而可以提升中心管21的功能稳定性和可靠 性，而且可以消除支撑台213、围板211与下盖板212之间的连接机构，提升了中心管21和复合滤芯100的装配效率，而且一体成型的中心管21的强度大，使用寿命较长。
在本实施例中，RO滤膜22形成为绕设在围板211上的片状，其中，RO滤膜22形成为宽度一定的条形，条形RO滤膜22绕设在围板211上，条形RO滤膜22的面积影响RO滤芯组件20的过滤效果，而且将RO滤膜22绕设在围板211上，占用空间较小，而且可以为水流穿过RO滤膜22提供方便。
如图13所示，在本实施例中，下盖板212的下端面形成有治具卡槽214，治具卡槽214适于配合治具驱动中心管21旋转绕设形成RO滤膜22。RO滤膜22绕设在中心管21上的过程，一般将中心管21安装在旋转机构上，通过旋转中心管21卷绕RO滤膜22，由此可以提升RO滤芯组件20的生产效率，而且操作方便。
其中，下盖板212的下表面设有治具卡槽214，旋转中心管21的治具可以是电机类机构，电机的电机轴上可以设置与治具卡槽214适配的卡扣，卡扣与治具卡槽214配合，可以防止治具驱动中心管21旋转时发生相对错动，进而可以提升中心管21卷绕RO滤膜22时的张力，可以提升RO滤膜22的质量。
如图2-图5所示，在本实施例中，RO滤芯组件20还包括环形内盖23，环形内盖23的下表面密封抵接RO滤膜22的上端面。
进一步地，如图9-11所示，环形内盖23底部形成有下表面敞开的环形槽，环形槽沿RO滤膜22的周向延伸，RO滤膜22的上端面封闭环形槽以限定出废水腔231，环形内盖23上设有废水口232，环形内盖23内限定有连通废水腔231与废水口232的废水通道。
RO滤膜22在过滤过程中分离出废水，通过设置废水口232、废水腔231和废水通道可以引导废水排出。
将废水腔231限定在环形内盖23上，可以防止废水串入中心管21内，进而可以提升过滤出的水流质量。而且RO滤芯组件20的废水从RO滤芯组件20的端部排出，将废水腔231限定在环形内盖23上，可以为废水进入废水腔231提供方便，而且结构简单，消除了RO滤芯组件20与废水腔231之间的复杂管道，简化了复合滤芯100的结构设计和水路设计。
根据本申请第二方面实施例的复合滤芯100，包括壳体10、根据上述实施例描述的RO滤芯组件20、内管30和内置滤材，RO滤芯组件20设在壳体10内，内管30可拆卸地设在滤材安装腔210内，内置滤材设在内管30内。
具体而言，中心管21设在壳体10内，RO滤膜22绕设在中心管21上，中心管21 内限定有滤材安装腔210，内管30设在滤材安装腔210内，内置滤材设在内管30内，内置滤材可以是第二滤芯组件40。
其中，内管30可以将滤材安装腔210间隔成内腔和外腔，中心管21和RO滤膜22组成RO滤芯组件20，RO滤芯组件20设在外腔，第二滤芯组件40设在内腔内，由于滤材安装腔210的一侧敞开，水流不仅可以穿过第二滤芯组件40从而经过第二滤芯组件40的过滤，还可以通过滤材安装腔210的敞开口进入内腔，并经过第二滤芯组件40的过滤作用。
由此，根据本申请实施例的复合滤芯100，将第二滤芯组件40设在内管30内，并将内管30设在RO滤芯组件20内，也就是说，RO滤芯组件20、内管30和第二滤芯组件40依次嵌套设置，可以充分利用RO滤芯组件20内的空间，而且利用内管30将RO滤芯组件20和第二滤芯组件40间隔开复合在壳体10内，不仅提升了复合滤芯100的过滤效果，而且原来容纳一个滤芯的空间可以容纳两个过滤管，节省了RO滤芯组件20和第二滤芯组件40的占用空间。
根据本申请第三方面实施例的复合滤芯100，包括根据上述实施例描述的RO滤芯组件20。
如图1-4所示，根据本申请的实施例，复合滤芯100包括：壳体10、RO滤芯组件20、内管30、第二过滤组件20和废水塞14。
其中，壳体10上设有废水出口115，RO滤芯组件20在使用过程中产生纯水和废水，纯水供用户饮用，废水排出可作他用。RO滤芯组件20设在壳体10内，RO滤芯组件20与壳体10之间限定有连通废水出口115的废水腔231，RO滤芯组件20产生的废水汇集在废水腔231内并通过废水出口115排出。
内管30设在RO滤芯组件20内，第二过滤组件20设在内管30内，通过在内管30中集成第二滤芯组件40，可以节省第二滤芯组件40的占用空间，而且可以提升复合滤芯100的净水效果。
进一步地，废水塞14插接在废水出口115内，废水排放过程中，废水塞14与现有技术中废水阀的作用相似，废水塞14对废水腔231内的水产生一定的阻力，例如，当废水腔231内的水压达到预定压力值时，废水塞14导通，废水从废水腔231排出。
由此，根据本申请实施例的复合滤芯100，通过在废水出口115上设置废水塞14，利用废水塞14提升废水腔231的压力，进而可以提升RO滤芯组件20的过滤效果，而且废水塞14设在壳体10上，当复合滤芯100到达使用周期进行更换时，废水塞14一 同更换，保证复合滤芯100上的废水塞14定期更换，防止废水塞14长期不更换，损坏影响复合滤芯100正常工作。而且将废水塞14设在壳体10上，可以为废水塞14的更换提供方便，降低了废水塞14的更换工艺的难度。
在一些具体实施中，废水塞14与壳体10一体成型，例如废水塞14可以集成设在壳体10上。由此可以提升废水塞14与壳体10的连接强度和稳定性，防止废水塞14脱离，而且可以节省废水塞14与壳体10之间的连接机构，有利于提升废水塞14的装配效率，再者，一体成型的机构稳定性加强，可以延长复合滤芯100的使用寿命。
在本实施例中，废水塞14包括：套管140和多个毛细管143，套管140插接在废水出口115内并与壳体10相连，毛细管143设在套管140的内壁上并沿套管140的径向向内延伸。
毛细管143的数量较多，多个毛细管143沿套管140的周向排列形成毛细管143组，多个毛细管143组沿套管140的轴向充满在套管140内。上述结构的废水塞14，结构简单，容易制作，而且可以有效提升RO滤芯组件20的净水效果。
如图15所示，在本实施例中，套管140包括：插接段141和导向段142，插接段141的一端插接在废水出口115内，插接段141沿废水出口115的轴向延伸，导向段142连通插接段141的另一端。插接段141和导向段142内均设有毛细管143，也可以仅在插接段141和导向段142中的一个内设置毛细管143。
上述结构的套管140不仅可以增加废水出口115的水压，而且插接段141插接在废水出口115内，稳定性和密闭性较好，导向段142适于连通废水出口115与废水排水管，其中，导向段142垂直于插接段141，方便废水排水管连接导向段142，可以为废水排放提供方便。
如图16-18所示，根据本申请的一个实施例，毛细管143设在插接段141内，毛细管143的径向内端配合限定出导流通道1431，导流通道1431的直径较小，水流穿过导流通道1431时，水流阻力较大，导向段142内设有沿导向段142的轴向延伸的导水柱1421，导水柱1421封闭导流通道1431，利用导水柱1421封闭导流通道1431，水流穿过毛细管143从插接段141进入导向段142，由此可以满足废水塞14对废水腔231的增压作用。
如图1所示，根据本申请一些实施例的复合滤芯100，壳体10上设有自来水入口111、净水出口112、净水入口113和纯水出口114。
RO滤芯组件20的外壁与壳体10的内壁限定出连通净水入口113的第一净水腔51，RO滤芯组件20的内壁与内管30的外壁限定出连通纯水出口114的纯水腔52，内管30 的内壁与第二滤芯组件40的外壁限定出连通自来水入口111的自来水腔53，第二滤芯组件40内限定有连通净水出口112的第二净水腔54。
水流经过自来水入口111进入自来水腔53，自来水腔53内的水流经过第二滤芯组件40的过滤作用进入第二净水腔54并通过净水出口112流出，流出的净水经过增压泵的作用通过净水入口113进入第一净水腔51，第一净水腔51内的水流经过RO滤芯组件20的过滤作用进入纯水腔52，纯水腔52中的水流经纯水出口114流出供用户饮用。
其中，壳体10的内壁与RO滤芯组件20的外壁之间的间隙为1.2mm，RO滤芯组件20的内壁与内管30的外壁之间的间隙为1.2mm，内管30的内壁与第二滤芯组件40的外壁之间的间隙为1.2mm。由此不仅可以保证水流的正常通过，而且可以缩小RO滤芯组件20和壳体10的体积，提升空间利用效率。
而且，利用壳体10内壁、RO滤芯组件20的内壁、RO滤芯组件20的外壁、内管30的内壁、内管30的外壁和第二滤芯组件40的外壁配合限定出第一净水腔51、第二净水腔54、自来水腔53和纯水腔52，结构简单，容易实现，有利于简化复合滤芯100的结构设计，而且可以降低复合滤芯100的生产成本。
如图1-图2所示，在本实施例中，RO滤芯组件20包括：中心管21、RO滤膜22和环形内盖23，中心管21沿壳体10的轴向延伸。如图12-图14所示，中心管21的上端敞开限定出滤材安装腔210，滤材安装腔210的上端敞开。如图1-图2所示，内管30设在中心管21内，纯水腔52限定在中心管21的内壁与内管30的外壁之间，RO滤膜22为反渗透滤膜，RO滤膜22套设在中心管21上并沿中心管21的轴向延伸。环形内盖23套设在中心管21上，且环形内盖23的内周沿与内管30的上沿密封抵接，环形内盖23的下表面与RO滤膜22的上端面密封配合。
其中，中心管21的壁上形成有纯水通孔2111，纯水通孔2111沿中心管21的壁的厚度方向贯穿中心管21的壁，水流从RO滤膜22的下端进入RO滤膜22，RO滤膜22将水流过滤分成废水和纯水，废水从RO滤膜22的上端流出并通过废水腔231和废水出口115排出。纯水从RO滤膜22的内壁流出并通过纯水通孔2111进入纯水腔52，并通过纯水出口114排出供用户饮用。
进一步地，如图9-11所示，环形内盖23上设有废水口232，环形内盖23内限定有下表面敞开的废水槽，废水槽沿环形内盖23的周向延伸，RO滤膜22的上端面与环形内盖23配合封闭废水槽形成废水腔231，环形内盖23内限定有连通废水腔231与废水出口115的废水通道。
如图3和8所示，在本实施例中，第二滤芯组件40为PAC滤芯，第二滤芯组件40 包括：PAC骨架41和PAC滤膜42，PAC骨架41位于内管30内并沿内管30的轴向延伸，PAC滤膜42套设在PAC骨架41上并沿PAC骨架41的轴向延伸。
可选地，PAC滤膜42为聚合氯化铝材料制作而成的管状过滤件。
可选地，可选地，PAC滤膜52由无纺布、聚丙烯层、碳纤维卷制而成的卷筒，使用寿命较长。当用于自来水的过滤时，可初步去除泥沙、铁锈及余氯。当然，PAC滤膜52也可以仅由其中一种或两种材料的滤层卷制而成，这里不做具体限制。
可选地，PAC滤膜42的厚度大于10mm。
其中，PAC骨架41内限定出第二净水腔54，PAC滤膜42外壁与内管30的内壁限定出自来水腔53，自来水通过自来水入口111进入自来水腔53，水流穿过PAC滤膜42并经过PAC滤膜42的过滤作用从PAC骨架41的内壁流出进入第二净水腔54，然后从净水出口112流出。
由于PAC滤膜42的过滤效果与水流穿过PAC滤膜42的厚度有关，因此将PAC滤膜42和PAC骨架41组成第二滤芯组件40并设在内管30内，缩小了第二滤芯组件40的直径，进而可以减小第二滤芯组件40的占用空间，而且可以减小PAC滤膜42的体积和生产材料，有利于降低成本。
如图3和8所示，在本实施例中，第二滤芯组件40还包括：PAC上端盖43和PAC下端盖44，PAC上端盖43套设在PAC骨架41的上端，PAC上端盖43的下表面密封抵接PAC滤膜42的上端面，PAC下端盖44套设在PAC骨架41的下端，PAC下端盖44的上表面密封抵接PAC滤膜42的下端面。且出水管60贯穿PAC上端盖43和PAC下端盖44，PAC下端盖44的外周沿与内管30的内周壁密封配合。
通过设置PAC上端盖43和PAC下端盖44，可以提升PAC滤膜42上端和下端的密闭性，防止PAC滤膜42内的水流从PAC滤膜42的上端或下端流出，可以提升自来水腔53的密闭性。
如图8所示，在本实施例中，PAC上端盖43的外周沿形成有向下翻折的上翻边431，上翻边431的内壁止抵PAC滤膜42的外周壁，上翻边431的外壁与内管30的内壁限定有自来水通道，水流从自来水入口111经过自来水通道进入自来水腔53。
PAC下端盖44的外周沿形成有向上翻折的下翻边441，下翻边441的内壁止抵PAC滤膜42的外周壁。
由此可以提升第二滤芯组件40的性能，而且可以提升自来水腔53的密闭性和可靠性，防止水流泄漏。
根据本申请的一个实施例，还包括：活性炭滤芯50和出水管60，活性炭滤芯50 设在中心管21内并密封抵接在内管30的下端与滤材安装腔210的底壁之间，活性炭滤芯50设在纯水腔52内，活性炭滤芯50将纯水腔52分割成位于活性炭滤芯50外的原纯水腔522和位于活性炭滤芯50内的出水腔521。出水管60沿内管30的轴向延伸并贯穿内管30，出水管60的一端(如图4所示的下端)连通出水腔521，出水管60的另一端(如图4所示的上端)连通纯水出口114。
也就是说，经过RO滤芯组件20过滤后的纯水进入原纯水腔522，原纯水腔522内的水流穿过活性炭滤芯50，经过活性炭滤芯50的过滤作用进入出水腔521，由此可以进一步清楚水中的杂质或异味。经过RO滤芯组件20过滤后的水成弱酸性，且味道较差，不适宜用户直接饮用，经过活心碳滤芯的过滤作用，可以进一步提升纯水的质量，提升了饮用水的口感。
在本实施例中，活性炭滤芯50与内管30沿滤材安装腔210的轴向排列，活性炭滤芯50设在滤材安装腔210的底部，内管30设在活性炭滤芯50的顶部，且纯水出口114位于壳体10的顶部。沿RO滤芯组件20的轴向排列的活性炭滤芯50与内管30，可以充分利用滤材安装腔210的空间，有利于缩小滤材安装腔210的内径，进而可以缩小RO滤芯组件20的直径和体积，而且上述结构的活性炭滤芯50与内管30结构简单，装配方便。
纯水出口114位于内管30的上方，出水腔521位于活性炭滤芯50内且位于内管30的下方，通过设置出水管60，可以为出水腔521内的水流从纯水出口114流出提供方便，而且出水管60的结构简单，容易实现。
而且，将活性炭滤芯50设在纯水腔52内，可以进一步提升复合滤芯100的复合程度，提升了复合滤芯100对水流的过滤作用，而且相对于单独设置活性炭滤芯50而言，不仅可以简化复合滤芯100的水流设计，还能减小复合滤芯100的体积。
进一步地，PAC骨架41为管状，PAC骨架41套设在出水管60上，出水管60的外壁与PAC骨架41的内壁限定出第二净水腔54，PAC骨架41的壁上形成有若干沿PAC骨架41的壁的厚度方向贯穿PAC骨架41的壁的孔。通过在PAC骨架41的壁上设置孔，可以促进PAC滤膜42内的水流穿过孔进入第二净水腔54，而且将PAC骨架41套设在出水管60上，可以进一步节省出水管60的占用空间，有利于进一步缩小复合滤芯100的体积。
PAC下端盖44套设在出水管60上，且PAC下端盖44的内周壁与出水管60的外周壁相连，由此可以提升第二净水腔54的密闭性，而且，PAC下端盖44可以和出水管60一体成型。
在本实施例中，中心管21的结构已在上文中描述，活性炭滤芯50的下端止抵在下盖板212的上表面。也就是说，中心管21形成为上端敞开下端封闭的筒状，围板211的内壁、下盖板212的上表面与内管30的外表面配合限定出纯水腔52。
中心管21的壁上形成有纯水通孔2111，纯水通孔2111沿中心管21的壁的厚度方向贯穿中心管21的壁，水流从RO滤膜22的下端进入RO滤膜22，RO滤膜22将水流过滤分成废水和纯水，废水从RO滤膜22的上端流出并通过废水腔231和废水出口115排出。如图12所示，围板211的外周壁上形成有连通纯水通孔2111的导水槽2112，导水槽2112相对于围板211的外周壁向内凹陷，RO滤膜22过滤后的水流通过导水槽2112流入纯水通孔2111，进而汇集在原纯水腔521，之后经过活性炭滤芯50的过滤进入出水腔521，再从纯水出口114排出。
由于RO滤膜22绕设在围板211上，通过在围板211上设置导水槽2112，可以增加RO滤膜22中导出水流的流动效率，增加RO滤膜22的出水效率，进而可以提升RO滤芯组件的净水效率。
上述结构的中心管21，下端封闭，可以防止纯水水流从纯水腔52的下端泄漏，RO滤芯装配过程中，只需要注意中心管21上端的密闭性即可。
如图13和14所示，在本实施例中，围板211的内壁形成有沿围板211的径向向内凸出的支撑台213，支撑台213具有上表面，内管30的下端止抵在支撑台213的上表面上，活性炭滤芯50设在内管30的下方，位于支撑台213的内侧。
通过在围板211上设置与内管30配合的支撑台213，可以为内管30的装配提供方便，支撑台213对内管30的支撑作用可以提升内管30的装配稳定性，而且可以降低内管30对活性炭滤芯50的挤压作用，防止内管30压力过大对活性炭滤芯50造成损坏，有利于延长活性炭滤芯50的使用寿命。
可选地，支撑台213的下端止抵中心管21的下盖板212的上表面，活性炭滤芯50设在支撑台213内。
如图6所示，根据本申请的一个实施例，壳体10包括：筒体11和下盖12，筒体11的底部敞开，RO滤芯组件20和第二滤芯组件40设在筒体11内，自来水入口111、净水出口112、净水入口113和纯水出口114均设在筒体11的顶部，下盖12与筒体11相连以封闭筒体11的敞开口，且下盖12的上表面与RO滤芯组件20的下端面密封抵接。可选地，环形内盖23设在筒体11内腔的顶部，环形内盖23的下表面抵接RO滤膜22的上端面。
其中，如图1所示，壳体10上还设有四个转接头13，四个转接头13一一对应地插 接在自来水入口111、净水出口112、净水入口113和纯水出口114内，通过设置转接头13为复合滤芯100装配水路提供了方便，而且提升了水路的密闭性。
其中，如图1和图3所示，壳体10上还设有装饰盖15，装饰盖15罩设在筒体11的顶部，自来水入口111、净水出口112、净水入口113、纯水出口114和废水出口115均罩设在装饰盖15内，由此提升了复合滤芯100的外观整齐性。
在本实施例中，如图6所示，筒体11的顶部还设有提手16，筒体11的侧壁上设有间隔开布置的第一连接点和第二连接点，提手16的一端连接第一连接点，另一端连接第二连接点，在拆除或装配复合滤芯100时，用户通过提升16取放复合滤芯100，操作方便，稳定性强，而且提手16结构简单，容易实现。
复合滤芯100在装配过程中，先将RO滤膜22绕设在中心管21上，然后将活性炭滤芯50设在中心管21内，然后将内管30装配在中心管21内，内管30的下端止抵活性炭滤芯50，然后将出水管60插接在内管30内，之后将第二滤芯组件40套设在出水管60上，最后将环形内盖23罩设在中心管21上，出水管60和PAC环形上端盖43从环形内盖23的中部伸出。然后将RO滤芯组件20插接在筒体11内，筒体11内腔的顶壁上设有第一水道、第二水道、第三水道、第四水道和第五水道，第一水道连通纯水出口114和出水管60，第二水道的一端连通自来水入口111，另一端连通PAC环形上端盖43的外周壁与环形内盖23内周壁之间的通道；第三水道的一端连通净水出口112，另一端连通PAC环形上端盖43的内周壁与出水管60的外周壁之间的通道，第四水道的一端连通净水入口113，另一端连通RO滤膜22的外周壁与筒体11内周壁之间的通道，第五水道连通废水出口115和废水口232。
在本实施例中，RO滤芯组件20的中心轴线、第二滤芯组件40的中心轴线、内管30的中心轴线、出水管60的中心轴线与壳体10的中心轴线重合。也就是说，出水管60，第二滤芯组件40、内管30、RO滤芯组件20和壳体10依次嵌套设置，由此可以减小出水管60、第二滤芯组件40、内管30和RO滤芯组件20的占用空间，提升了复合滤芯100内部空间的利用效率，进而可以缩小壳体10的体积，为复合滤芯100的使用和装配提供了方便。
根据本申请第四方面实施例的水处理装置，包括上述实施例中描述的复合滤芯100、增压泵和箱体。
具体而言，箱体上设有供水装置、出水口和排水口，复合滤芯100和增压泵设在箱体内，供水装置连通自来水入口111为水处理装置供水，增压泵连通在净水出口112和净水入口113之间，用于将第二净水腔54流出的水增压后泵送至第一净水腔51内， 出水口连通纯水出口114供用户取水，排水口连通废水出口115用于排放废水。
根据本申请第四方面的水处理装置，包括上述实施例中描述的复合滤芯100，通过采用上述实施例中的复合滤芯100，可以缩小水处理装置的体积，节省占用空间，而且可以提升出水质量，为用户使用提供了方便。
根据本申请实施例的水处理装置的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (26)

  1. 一种RO滤芯组件，其特征在于，包括：
    中心管，所述中心管内限定有滤材安装腔，所述中心管的壁上形成有纯水通孔；
    RO滤膜，所述RO滤膜套设在所述中心管上，且所述RO滤膜覆盖所述纯水通孔。
  2. 根据权利要求1所述的RO滤芯组件，其特征在于，所述滤材安装腔的直径大于30mm。
  3. 根据权利要求1或2所述的RO滤芯组件，其特征在于，所述RO滤膜沿所述中心管的轴向延伸。
  4. 根据权利要求1-3中任一项所述的RO滤芯组件，其特征在于，所述中心管包括：围板，所述围板形成为两端敞开的筒状，所述纯水通孔设在所述围板上，所述RO滤膜套设在所述围板；及下盖板，所述下盖板设在所述围板内且位于所述围板的下部，所述下盖板封闭所述围板的下端限定出所述滤材安装腔。
  5. 根据权利要求4所述的RO滤芯组件，其特征在于，所述围板的外周壁上形成有连通所述纯水通孔的导水槽。
  6. 根据权利要求5所述的RO滤芯组件，其特征在于，所述导水槽沿所述围板的周向延伸。
  7. 根据权利要求5或6所述的RO滤芯组件，其特征在于，所述导水槽沿所述围板的轴向延伸。
  8. 根据权利要求4-7中任一项所述的RO滤芯组件，其特征在于，所述RO滤膜形成为绕设在所述围板上的片状。
  9. 根据权利要求4-8中任一项所述的RO滤芯组件，其特征在于，所述下盖板的下端面形成有治具卡槽，所述治具卡槽适于配合治具驱动所述中心管旋转绕设形成所述RO滤膜。
  10. 根据权利要求4-9中任一项所述的RO滤芯组件，其特征在于，所述围板的内壁上设有支撑台，所述支撑台沿所述围板的径向向内凸出。
  11. 根据权利要求10所述的RO滤芯组件，其特征在于，所述围板、所述下盖板与所述支撑台一体成型。
  12. 一种复合滤芯，其特征在于，包括：壳体；及
    根据权利要求1-11中任一项所述的RO滤芯组件，所述RO滤芯组件设在所述壳体内；及，
    内管，所述内管可拆卸地设在所述滤材安装腔内；
    内置滤材，所述内置滤材设在所述内管内。
  13. 一种复合滤芯，其特征在于，包括：
    壳体，所述壳体上设有废水出口；
    RO滤芯组件，所述RO滤芯组件为根据权利要求1-11中任一项所述的RO滤芯组件，所述RO滤芯组件设在所述壳体内，所述RO滤芯组件与所述壳体之间限定有连通所述废水出口的废水腔；
    内管，所述内管设在所述RO滤芯组件内；
    第二过滤管，所述第二过滤管设在所述内管内；
    废水塞，所述废水塞插接在所述废水出口上。
  14. 根据权利要求13所述的复合滤芯，其特征在于，所述废水塞与所述壳体一体成型。
  15. 根据权利要求13或14所述的复合滤芯，其特征在于，所述废水塞包括：
    套管，所述套管插接在所述废水出口内并与所述壳体相连；
    多个毛细管，所述毛细管设在所述套管的内壁上并沿所述套管的径向向内延伸。
  16. 根据权利要求15所述的复合滤芯，其特征在于，所述套管包括：
    插接段，所述插接段插接在所述废水出口内并沿所述废水出口的轴向延伸；
    导向段，所述导向段连通所述插接段。
  17. 根据权利要求16所述的复合滤芯，其特征在于，所述毛细管设在所述插接段内，所述毛细管的径向内端配合限定出导流通道，所述导向段内设有沿所述导向段的轴向延伸的导水柱，所述导水柱封闭所述导流通道。
  18. 根据权利要求16或17所述的复合滤芯，其特征在于，所述导向段垂直于所述插接段。
  19. 根据权利要求13-18中任一项所述的复合滤芯，其特征在于，所述壳体上设有自来水入口、净水出口、净水入口和纯水出口；
    所述RO滤芯组件的外壁与所述壳体的内壁限定出连通所述净水入口的第一净水腔；
    所述RO滤芯组件的内壁与所述内管的外壁限定出连通所述纯水出口的纯水腔；
    所述内管的内壁与所述第二过滤管的外壁限定出连通所述自来水入口的自来水腔；
    所述第二过滤管内限定有连通所述净水出口的第二净水腔。
  20. 根据权利要求19所述的复合滤芯，其特征在于，所述壳体包括：
    筒体，所述筒体的底部敞开，所述内管、所述RO滤芯组件和所述第二过滤管设在 所述筒体内，所述自来水入口、所述净水出口、所述净水入口、所述纯水出口和所述废水出口均设在所述筒体的顶部；及，
    下盖，所述下盖罩设在所述筒体的底部，所述下盖与所述筒体相连以封闭所述筒体的敞开口。
  21. 根据权利要求13-20中任一项所述的复合滤芯，其特征在于，所述滤材安装腔的上端敞开，
    所述RO滤芯组件包括：环形内盖，所述环形内盖套设在所述中心管上，所述环形内盖的内周沿与所述内管的上端沿相连，且所述环形内盖的下端面与所述RO滤膜的上端面止抵。
  22. 根据权利要求21所述的复合滤芯，其特征在于，所述环形内盖内限定有向下敞开的废水槽，所述RO滤膜的上端面与所述环形内盖配合封闭所述废水槽形成废水腔，所述内盖顶部设有连通所述废水腔与所述废水出口的废水通道。
  23. 根据权利要求13-22中任一项所述的复合滤芯，其特征在于，所述第二过滤管包括：
    PAC骨架，所述PAC骨架位于所述内管内并沿所述内管的轴向延伸；
    PAC滤膜，所述PAC滤膜套设在所述PAC骨架上并沿所述PAC骨架的轴向延伸；
    PAC上端盖，所述PAC上端盖套设在所述PAC骨架的上部，所述PAC上端盖的下表面密封抵接所述PAC滤膜的上端面；
    PAC下端盖，所述PAC下端盖套设在所述PAC骨架的下部，所述PAC下端盖的上表面密封抵接所述PAC滤膜的下端面。
  24. 根据权利要求19或20所述的复合滤芯，其特征在于，还包括：
    活性炭滤芯，所述活性炭滤芯设在所述纯水腔内且位于所述内管的下方，所述活性炭滤芯将所述纯水腔分隔成位于所述活性炭滤芯外的原纯水腔和位于所述活性炭滤芯内的出水腔，所述出水腔连通所述纯水出口。
  25. 根据权利要求24所述的复合滤芯，其特征在于，所述纯水出口位于所述壳体的顶部，所述复合滤芯还包括：
    出水管，所述出水管沿所述内管的轴向贯穿所述内管，所述出水管的上端连通所述纯水出口，所述出水管的下端连通所述出水腔。
  26. 一种水处理装置，其特征在于，包括根据权利要求12-25中任一项所述的复合滤芯。
PCT/CN2019/114558 2018-10-31 2019-10-31 Ro滤芯组件和具有其的复合滤芯、水处理装置 WO2020088560A1 (zh)

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