WO2016095401A1 - 一体复合滤芯和具有其的净水系统 - Google Patents

一体复合滤芯和具有其的净水系统 Download PDF

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Publication number
WO2016095401A1
WO2016095401A1 PCT/CN2015/078075 CN2015078075W WO2016095401A1 WO 2016095401 A1 WO2016095401 A1 WO 2016095401A1 CN 2015078075 W CN2015078075 W CN 2015078075W WO 2016095401 A1 WO2016095401 A1 WO 2016095401A1
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WIPO (PCT)
Prior art keywords
tube
filter
water outlet
filter layer
filter element
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Application number
PCT/CN2015/078075
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English (en)
French (fr)
Inventor
蔡雪刚
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
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Filing date
Publication date
Priority claimed from CN201410814047.1A external-priority patent/CN104528976A/zh
Priority claimed from CN201420826203.1U external-priority patent/CN204310893U/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 WO2016095401A1 publication Critical patent/WO2016095401A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B01D29/115—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration open-ended, the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/157—Flow control valves: Damping or calibrated passages
    • B01D35/1573—Flow control valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/301—Constructions of two or more housings
    • B01D35/303—Constructions of two or more housings the housings being modular, e.g. standardised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1692—Other shaped material, e.g. perforated or porous sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/04—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/24—Dialysis ; Membrane extraction
    • B01D61/28—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • 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
    • 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
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted 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
    • 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
    • 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
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/26—Further operations combined with membrane separation processes
    • B01D2311/2626—Absorption or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/26—Further operations combined with membrane separation processes
    • B01D2311/2649—Filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/44—Cartridge types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
    • B01D63/065—Tubular membrane modules with membranes on a surface of a support tube on the outer surface thereof
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/007—Modular design

Definitions

  • the present invention relates to the field of water purification technology, and more particularly to an integrated composite filter element and a water purification system therewith.
  • the existing water purification equipment uses PP cotton, activated carbon, etc. as the pre-filter element, and then connects the RO filter element in series, and the water system connected by the multi-stage filter element performs water purification treatment.
  • the pipeline connection of the whole system is complicated, the installation and replacement are inconvenient, and the multi-joint connection and the risk of water leakage are many.
  • a professional installer is required to perform a 30 minute rinse when using and replacing the filter element for the first time. More importantly, the service life of multi-stage filter elements is inconsistent.
  • the filter elements that consumers need to replace have 3 to 5 levels. The filter elements are frequently purchased and need to be replaced by professional installers. The consumer experience is poor and the overall cost is high.
  • the present invention aims to solve at least one of the above technical problems to some extent.
  • the present invention provides an integrated composite filter element which is simple in structure, requires no flushing during initial installation, and is easy to replace.
  • the present invention also provides a water purification system having the above-described integrated composite filter element.
  • An integrated composite filter element includes: a casing defining a chamber therein, the casing being provided with a raw water inlet, a pretreated water outlet, and a pretreated water that are electrically connected to the chamber An inlet, a pure water outlet, and a waste water outlet; a pretreatment filter cartridge, the pretreatment filter cartridge being axially extended in the chamber along the chamber, the pretreatment filter cartridge comprising: a mounting tube, the mounting tube forming a hollow column shape extending in the up-and-down direction; the first to third filter layers are sequentially sleeved on the mounting tube from the outside to the inside, and the first filter layer is PP cotton.
  • the second filter layer is an activated carbon fiber winding layer
  • the third filter layer is one of a PP cotton, a microfiltration membrane or an ultrafiltration membrane
  • the first filtration layer and the outer casing define a
  • the raw water inlet is connected to the water inlet passage
  • the third filter layer and the installation tube define a pre-treatment water outlet passage that is electrically connected to the pre-treatment water outlet
  • the central tube, the central tube along the An axially extending mounting tube is mounted in the mounting tube,
  • the central tube is spaced apart from the mounting tube to form a filtering chamber that is electrically connected to the pretreatment water inlet, and one end of the central tube is in communication with the pure water outlet, and the side wall of the central tube is provided with water.
  • the filter membrane is disposed in the filter chamber and is disposed around an outer peripheral wall of the central tube, and a wastewater passage is defined between an outer peripheral wall of the filter membrane and an inner peripheral wall of the mounting tube.
  • the wastewater passage is electrically connected to the waste water outlet.
  • the pretreatment filter element is configured as a structure consisting of the first to third filter layers composed of no fine carbon powder, and the pretreatment filter element of the structure has a simple structure, and in the initial installation, since there is no Fine charcoal flow Out, it can be free of flushing; the integrated filter core design is uniform, the life of each filter layer is the same, and the pre-treatment filter can be replaced once at a time after expiration, which solves the problem that consumers need to frequently change different filter elements and reduces the cost.
  • integrated composite filter element according to an embodiment of the present invention may further have the following additional technical features:
  • the pretreatment further includes: an upper end cover, the upper end cover is disposed at an outer circumference of the upper end of the mounting tube; a lower end cover, the lower end cover is disposed at a periphery of the lower end of the mounting tube
  • the first to third filter layers are disposed between the upper end cover and the lower end cover; and the support tube is sleeved on the mounting tube and located between the upper end cover and the lower end cover.
  • the first to third filter layers are disposed between an outer circumferential surface of the mounting tube and an inner circumferential surface of the support tube, and the support tube is provided with a plurality of through holes that are electrically connected inside and outside.
  • the pretreatment further includes: an inner tube sleeved on the mounting tube, and an inner circumferential surface of the inner tube is spaced apart from an outer circumferential surface of the mounting tube, The upper end and the lower end of the inner tube respectively abut the upper end cover and the lower end cover, and the third filter layer is sleeved on the inner tube, and the inner tube is provided with a plurality of water holes which are electrically connected inside and outside .
  • the raw water inlet is a single hole
  • the pretreated water outlet and the pretreated water inlet are nested
  • the pretreated water inlet is nested within the pretreated water outlet.
  • the pure water outlet and the waste water outlet are nested, the pure water outlet being nested within the waste water outlet.
  • the pre-treated water outlet is disposed below the raw water inlet and located at a lower portion of the outer casing, and the pure water outlet is disposed at an upper portion of the lower casing, and the upper end of the central pipe is open and closed.
  • the pure water outlet is connected.
  • the first filter layer is a PP nonwoven fabric wound layer
  • the third filter layer is a CRN microfiltration membrane
  • the first filter layer is a 5 micron PP cotton and the third filter layer is a 1 micron PP cotton.
  • the first filter layer is a wound PP cotton
  • the third filter layer is an ultrafiltration membrane
  • the filter membrane is a reverse osmosis membrane, an ultrafiltration membrane or a nanofiltration membrane.
  • a water purification system includes the integrated composite filter cartridge according to the above embodiment.
  • FIG. 1 is a cross-sectional view of a pretreatment filter cartridge in accordance with an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of an integrated composite filter cartridge in accordance with an embodiment of the present invention
  • Figure 3 is a front elevational view of an integrated composite filter cartridge in accordance with an embodiment of the present invention.
  • FIG. 4 is a side view of an integrated composite filter cartridge in accordance with an embodiment of the present invention.
  • Figure 5 is a top plan view of an integrated composite filter cartridge in accordance with an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of water inlet of an integrated composite filter element according to an embodiment of the present invention.
  • FIG. 7 is a schematic view of pure water effluent of an integrated composite filter element according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of wastewater discharge from an integrated composite filter element according to an embodiment of the present invention.
  • FIG. 9 is a water circuit diagram of a water purification apparatus in accordance with an embodiment of the present invention.
  • Pretreatment filter element 100 integrated composite filter element 200; water purification system 300;
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; can be mechanical connection or electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, It is the internal connection between the two components.
  • installation can be understood on a case-by-case basis.
  • the pretreatment cartridge 100 according to an embodiment of the present invention will be specifically described below with reference to the accompanying drawings.
  • a pretreatment cartridge 100 includes a mounting tube 10, a first filter layer 11, a second filter layer 12, and a third filter layer 13.
  • the mounting tube 10 is formed in a hollow column shape extending in the up and down direction, and the first filter layer 11, the second filter layer 12, and the third filter layer 13 are sequentially sleeved on the mounting tube 10 from the outside to the inside, and the first filter
  • the layer 11 is PP cotton
  • the second filter layer 12 is a wound layer of activated carbon fibers
  • the third filter layer 13 is one of PP cotton, microfiltration membrane or ultrafiltration membrane.
  • the mounting tube 10 is mainly composed of three filter layers nested on the mounting tube 10 in sequence, and the three filter layers are sequentially filtered from the outside to the inside in the radial direction of the mounting tube 10.
  • the first filter layer 11 is PP cotton
  • the second filter layer 12 is an activated carbon fiber wound layer
  • the third filter layer 13 is one of PP cotton, microfiltration membrane or ultrafiltration membrane.
  • the pretreatment filter element 100 does not contain an adsorption structure which generates fine carbon powder, and the pretreatment filter element 100 does not flow out of the fine carbon powder after the initial installation, so that no rinsing is required.
  • the plurality of filter layers are integrally disposed on the mounting tube 10, and the service life is basically the same. After the pretreatment filter element 100 expires, it can be uniformly replaced.
  • the pretreatment filter element 100 is configured as a structure composed of the first to third filter layers composed of no fine carbon powder, and the pretreatment filter element 100 of the structure is simple in structure.
  • the pretreatment filter element 100 is designed in an integrated manner, and the life of each filter layer is uniform. After the pretreatment filter element 100 expires, it can be uniformly replaced at one time, which solves the problem that consumers need to frequently change differently. The problem with the filter element reduces the cost.
  • the pretreatment cartridge 100 further includes an upper end cap 14, a lower end cap 15 and a support tube 16.
  • the upper end cover 14 is disposed at the outer periphery of the upper end of the mounting tube 10
  • the lower end cover 15 is disposed at the outer periphery of the lower end of the mounting tube 10
  • the first filter layer 11, the second filter layer 12, and the third filter layer 13 are disposed at the upper end cover. 14 between the lower end cover 15.
  • the support tube 16 is sleeved on the mounting tube 10 and located between the upper end cover 14 and the lower end cover 15, and the first filter layer 11, the second filter layer 12 and the third filter layer 13 are disposed on the outer peripheral surface of the mounting tube 10 and the support tube Between the inner circumferential surfaces of the 16th, the support tube 16 is provided with a plurality of through holes 161 which are electrically connected inside and outside.
  • the pretreatment filter element 100 includes a mounting tube 10 having an upper end end portion 14 extending in a radial direction of the mounting tube 10 and a lower end end portion 15 extending in a radial direction of the mounting tube 10 at a lower end.
  • the first filter layer 11, the second filter layer 12 and the third filter layer 13 are disposed between the upper end cover 14 and the lower end cover 15, the support tube 16 is disposed outside the third filter layer 13, and the upper and lower ends of the support tube 16 are The upper end cover 14 and the lower end cover 15 are respectively stopped. Therefore, the pretreatment filter element 100 of the structure can effectively ensure the overall structural stability on the basis of a simple structure.
  • the pretreatment filter element 100 further includes an inner tube 17 which is sleeved on the inner tube 17
  • the inner circumferential surface of the inner tube 17 is spaced apart from the outer circumferential surface of the mounting tube 10, and the upper end and the lower end of the inner tube 17 respectively abut the upper end cover 14 and the lower end cover 15, and the third filter layer 13 is sleeved in the inner tube.
  • a plurality of water holes 171 which are electrically connected inside and outside are provided.
  • the first filter layer 11, the second filter layer 12, and the third filter layer 13 are not directly nested around the mounting tube 10, but are nested around the inner tube 17, and the inner tube 17 is sleeved on
  • the installation pipe 10 is spaced apart from the installation pipe 10 to form a pre-treatment water outlet passage, and the inner pipe 17 is provided with a plurality of water-passing holes 171 which are electrically connected to the pre-treatment water passage.
  • raw water enters the pretreatment filter element 100 from the through hole 161 of the support tube 16, and sequentially passes through the first filter layer 11, the second filter layer 12, and the third filter layer. After 13 , the pre-water outlet passage is introduced from the water passage 171 on the inner tube 17, and the pre-treated water pretreated by the pre-treatment filter 100 is discharged from the pre-treatment water outlet passage for further filtration.
  • the upper end surface and the lower end surface of the first filter layer 11, the second filter layer 12, and the third filter layer 13 respectively abut the upper end cover 14 and the lower end cover 15, the mounting tube 10 and the upper end cover
  • the 14 is integrally formed, and the inner tube 17 and the lower end cover 15 are integrally formed.
  • the first filter layer 11 that is, the PP cotton layer may be a PP nonwoven fabric wound layer, or may be a folded PP nonwoven fabric or a wound PP cotton, and the second filter layer 12 is an activated carbon fiber wound.
  • the layer may also be a material having an adsorption function such as activated carbon rod or granular activated carbon or acidic activated carbon, and the third filter layer 13 may be a high-precision CRN microfiltration membrane or an ultrafiltration membrane.
  • the first filter layer 11 is a PP nonwoven fabric wound layer, and the third filter layer 13 is a CRN microfiltration membrane.
  • the first filter layer 11 is a 5 micron PP cotton and the third filter layer 13 is a 1 micron PP cotton.
  • the first filter layer 11 may also be a wound PP cotton, and the third filter layer 13 is an ultrafiltration membrane.
  • the third filter layer 13 has an inner diameter of 60-70 mm, and the difference between the inner diameter of the third filter layer 13 and the outer diameter of the first filter layer 11 is 15-20 mm, first The height of the filter layer 11, the second filter layer 12, and the third filter layer 13 in the up and down direction is 100-110 mm. Further, the third filter layer 13 has an inner diameter of 65 mm, and the difference between the inner diameter of the third filter layer 13 and the outer diameter of the first filter layer 11 is 18 mm, and the first filter layer 11, the second filter layer 12, and the third The height of the filter layer 13 in the up and down direction was 106 mm.
  • the service life of the first filter layer 11, the second filter layer 12 and the third filter layer 13 of the pretreatment filter element 100 of the structure can be ensured as consistent as possible, and the pretreatment filter element 100 can be uniformly replaced after expiration, in order to solve the consumption.
  • it is necessary to frequently change the troubles of different filter elements and it is ensured that each filter layer is fully used to avoid waste of a certain filter layer.
  • an integrated composite filter cartridge 200 in accordance with an embodiment of the present invention includes a housing 20, a pretreatment cartridge 100, a center tube 30, and a filter membrane 40.
  • the pretreatment filter element 100 is the pretreatment filter element 100 according to the above embodiment of the present invention.
  • a housing 21 is defined in the outer casing 20, and the outer casing 20 is provided with a raw water inlet 22, a pretreatment water outlet 23, a pretreatment water inlet 24, a pure water outlet 25, and a waste water outlet 26 that are electrically connected to the chamber 21.
  • the pretreatment cartridge 100 is axially extended within the chamber 21 along the chamber 21, and the pretreatment cartridge 100 includes the mounting tube 10, the first filter layer 11, the second filter layer 12, and the third filter layer according to the above embodiment. 13.
  • the water inlet passage 27 that is electrically connected to the raw water inlet 22 is defined between the first filter layer 11 and the outer casing 20, and the pretreatment with the pretreatment water outlet 23 is defined between the third filter layer 13 and the mounting tube 10. Water outlet passage 28.
  • the central tube 30 is installed in the mounting tube 10 along the axial direction of the mounting tube 10, and the central tube 30 is spaced apart from the mounting tube 10 to form a filtering chamber that is electrically connected to the pretreatment water inlet 24.
  • One end of the central tube 30 and the pure water outlet 25 is connected, and a water inlet hole 31 is provided in the side wall of the center pipe 30.
  • the filter membrane 40 is disposed in the filter chamber and is disposed around the outer peripheral wall of the center tube 30.
  • a waste water passage 29 is defined between the outer peripheral wall of the filter membrane 40 and the inner peripheral wall of the mounting tube 10, and the waste water passage 29 is electrically connected to the waste water outlet 26. .
  • the integrated composite filter element 200 employs a pretreatment filter element 100 composed of first to third filter layers composed of no fine carbon powder, and the pretreatment filter element 100 can pretreat the raw water.
  • the treated pretreated water can be filtered again through the filtration membrane 40, and the pretreatment and post treatment are combined to ensure the water purification effect.
  • the integrated composite filter element 200 according to the embodiment of the present invention also has a corresponding technical effect, that is, the pretreatment filter element 100 has a simple structure, and in the initial installation, since there is no The fine carbon powder flows out, which can be washed freely; the pretreatment filter element 100 is designed in an integrated manner, and the life of each filter layer is consistent. After the pretreatment filter element 100 expires, it can be uniformly replaced at one time, which solves the problem that the consumer needs to frequently change different filter elements, and reduces the problem. cost.
  • the pretreatment filter element 100 and the filter membrane 40 constitute an integrated composite filter element 200, and the service life of the pretreatment filter element 100 and the filter membrane 40 can also be set to be uniform, and the pretreatment filter element 100 and the filter membrane 40 can also be uniformly replaced, and the pretreatment filter element 100 can be uniformly replaced. It is connected in series with the filter membrane 40, has a compact structure, and has no joint between the pretreatment and the post treatment, and has few water leakage points, thereby ensuring the overall performance of the integrated composite filter element 200.
  • the pretreatment filter element 100 further includes an upper end cover 14, a lower end cover 15, and a support tube 16.
  • the upper end cover 14 is disposed at the outer periphery of the upper end of the mounting tube 10
  • the lower end cover 15 is disposed at the outer periphery of the lower end of the mounting tube 10
  • the first filter layer 11, the second filter layer 12, and the third filter layer 13 are disposed at the upper end cover. 14 between the lower end cover 15.
  • the support tube 16 is sleeved on the mounting tube 10 and located between the upper end cover 14 and the lower end cover 15, and the first filter layer 11, the second filter layer 12 and the third filter layer 13 are disposed on the outer peripheral surface of the mounting tube 10 and the support tube Between the inner circumferential surfaces of the 16, the support tube 16 is provided with a plurality of through holes for inner and outer conduction. 161.
  • the pretreatment filter element 100 further includes an inner tube 17 which is sleeved on the mounting tube 10 and the inner circumferential surface of the inner tube 17 is spaced apart from the outer circumferential surface of the mounting tube 10.
  • the upper end and the lower end of the inner tube 17 respectively abut the upper end cover 14 and the lower end cover 15, the third filter layer 13 is sleeved on the inner tube 17, and the inner tube 17 is provided with a plurality of water holes 171 which are electrically connected inside and outside.
  • the integrated composite filter element 200 is mainly composed of a casing 20, a pretreatment filter element 100, a center tube 30, and a filter membrane 40.
  • the pretreatment filter element 100 is installed in the casing 20, and the support tube 161 of the pretreatment filter element 100 is 161.
  • An inlet passage 27 is defined with the outer casing 20, and the inlet passage 27 is electrically connected to the raw water inlet 22, and the raw water entering the outer casing 20 from the raw water inlet 22 first enters the inlet passage 27.
  • the support tube 16 of the pretreatment filter element 100 is provided with a plurality of through holes 161, and the raw water in the water inlet passage 27 sequentially enters the first filter layer 11, the second filter layer 12 and the third filter layer 13 through the plurality of through holes 161.
  • the pretreated water pretreated by the first filter layer 11, the second filter layer 12 and the third filter layer 13 enters the pretreated water outlet passage between the inner tube 17 and the mounting tube 10 from the water passing hole 171 in the inner tube 17. 28.
  • the pretreated water outlet passage 28 is electrically connected to the pretreated water outlet 23, and the pretreated water can flow out from the pretreated water outlet 23 (as indicated by an arrow in Fig. 6).
  • the pretreated water flowing out from the pretreated water outlet 23 may be subjected to a pressurization treatment by a pressurizing device, and the pretreated water subjected to the pressurization treatment is then introduced into the outer casing 20 from the pretreated water inlet 24, and the pretreated water enters the center pipe 30 and is installed.
  • the filter chamber between the tubes 10 shown by the arrows in Figure 6).
  • the pretreated water is waste water and purified water, and the purified water enters the central tube 30 from the water inlet 31 on the center tube 30, and then flows out from the pure water outlet 25 (as indicated by an arrow in Fig. 7).
  • the waste water flows out of the waste water outlet 26 from the waste water passage 29 between the filter membrane 40 and the installation pipe 10 to complete the discharge of the waste water (as indicated by an arrow in Fig. 8).
  • the structure of the integrated composite filter element 200 according to the embodiment of the present invention is reasonable, the pretreatment filter element 100 has no granular activated carbon, and the first installation without the fine carbon powder flows out, and the entire integrated composite filter element 200 does not need to be rinsed for a long time, which greatly simplifies the installation process.
  • the raw water inlet 22 is a single orifice
  • the pretreated water outlet 23 and the pretreated water inlet 24 are nested
  • the pretreated water inlet 24 is nested within the pretreated water outlet 23.
  • the pure water outlet 25 and the waste water outlet 26 are nested
  • the pure water outlet 25 is nested within the waste water outlet 26.
  • the outer casing 20 of the integrated composite filter element 200 has a pre-treated water outlet 23 and a pretreated water inlet 24, as well as a pure water outlet 25 and a waste water outlet 26, except that the raw water inlet 22 is a single hole.
  • the structure provided for nesting that is, the pretreated water inlet 24 is nested within the pretreated water outlet 23, and the pure water outlet 25 is nested within the waste water outlet 26.
  • the joint between the nozzles of the integrated composite filter element 200 of the structure is more convenient, the joints are less connected with the outside, the water leakage point is reduced, and the water distribution in the integrated composite filter element 200 is more reasonable, so that the integrated composite filter element 200 is
  • the overall structure is more compact, which facilitates the miniaturization of the integrated composite filter element 200.
  • the pretreated water outlet 23 is disposed below the raw water inlet 22 and at the lower portion of the outer casing 20, and the pure water outlet 25 is disposed at the upper portion of the lower casing, and the upper end of the central pipe is open to communicate with the pure water outlet 25.
  • the pre-treated water outlet 23 and the pre-treated water inlet 24 which are nested are disposed at a position adjacent to the lower portion of the outer casing 20, and the nested pure water outlet 25 and the waste water outlet 26 are disposed adjacent to the upper portion of the outer casing 20.
  • the raw water inlet 22 is located above the pretreated water outlet 23 and the pretreated water inlet 24.
  • the raw water enters the outer casing 20 from the raw water inlet 22 of the lower portion of the outer casing 20, and is filtered through the first filter layer 11, the second filter layer 12 and the third filter layer 13
  • the outer hole water path of the nested multi-hole below the composite filter element 200 flows out, that is, flows out from the pre-treatment water outlet 23, and after being pressurized, enters the outer casing 20 from the pre-treated water inlet 24, and enters from the bottom of the integrated composite filter element 200.
  • the filtration chamber is filtered through the filtration membrane 40, and is divided into clean water and waste water, and then discharged upward from the pure water outlet 25 and the waste water outlet 26.
  • the water path setting of the integrated composite filter element 200 of the structure is more reasonable, and the flow and filtration of the raw water are facilitated, and the water purification efficiency of the integrated composite filter element 200 is improved.
  • the filter membrane 40 can be a reverse osmosis membrane, an ultrafiltration membrane, or a nanofiltration membrane. Therefore, the filter film 40 of the structure is easy to assemble and can reasonably control the cost of the integrated composite filter element 200 on the basis of ensuring the filtering effect.
  • a water purification system 300 includes an integrated composite filter element 200 according to the above embodiment, wherein a diaphragm pump 50, pure water is disposed between the pretreatment water outlet 23 and the pretreatment water inlet 24.
  • a flexible water bag 60 and a water pump 70 may also be provided at the outlet 25, and a waste water ratio solenoid valve 80 may be provided at the waste water outlet 26.
  • the water purification system 300 according to the embodiment of the present invention also has a corresponding technical effect that the water purification system 300 has a compact overall structure and few water leakage points, and The initial installation does not need to be flushed, and the integrated filter element 200 has a uniform life span of each filter layer, and can be uniformly replaced for convenient use by consumers.

Abstract

一种一体复合滤芯（200）和具有其的净水系统（300），一体复合滤芯（200）包括：外壳（20）；预处理滤芯（100），预处理滤芯（100）包括：安装管（10）；第一至第三过滤层，第一过滤层（11）与外壳（20）之间限定出进水通路（27），第三过滤层（13）与安装管（10）之间限定出预处理水出水通路（28）；中心管（30），中心管（30）与安装管（10）间隔开形成过滤腔；滤膜（40），滤膜（40）的外周壁与安装管（10）的内周壁之间限定出废水通路（29）。

Description

一体复合滤芯和具有其的净水系统 技术领域
本发明涉及净水技术领域，更具体地，涉及一种一体复合滤芯和具有其的净水系统。
背景技术
现有的净水设备采用PP棉、活性炭等作为前置滤芯、再串联RO滤芯，由多级滤芯连接的水系统进行水的净化处理。整个系统管路连接复杂，安装与更换不便，多接头连接、漏水风险点多。且在第一次使用和更换滤芯时都需要专业的安装人员进行30分钟的冲洗。更重要的是，多级滤芯的使用寿命不一致，消费者需要更换的滤芯有3到5级之多，频繁购买滤芯且需由专业的安装人员更换，消费者的体验差、综合成本高。
发明内容
本发明旨在至少在一定程度上解决上述技术问题之一。
为此，本发明提出一种一体复合滤芯，该一体复合滤芯结构简单，初始安装时无需冲洗，并且更换方便。
本发明还提出一种具有上述一体复合滤芯的净水系统。
根据本发明第一方面实施例的一体复合滤芯，包括：外壳，所述外壳内限定有腔室，所述外壳设有与所述腔室导通的原水进口、预处理水出口、预处理水进口、纯水出口和废水出口；预处理滤芯，所述预处理滤芯沿所述腔室地轴向延伸地安装在所述腔室内，所述预处理滤芯包括：安装管，所述安装管形成为沿上下方向延伸的空心柱状；第一至第三过滤层，所述第一至第三过滤层从外到内依次套设在所述安装管上，所述第一过滤层为PP棉，所述第二过滤层为活性炭纤维卷绕层，所述第三过滤层为PP棉、微滤膜或超滤膜中的一种，所述第一过滤层与所述外壳之间限定出与所述原水进口导通的进水通路，所述第三过滤层与安装管之间限定出与所述预处理水出口导通的预处理水出水通路；中心管，所述中心管沿所述安装管的轴向延伸地安装在所述安装管内，所述中心管与所述安装管间隔开形成与所述预处理水进口导通的过滤腔，所述中心管的一端与所述纯水出口连通，所述中心管的侧壁上设有入水孔；滤膜，所述滤膜设在所述过滤腔内且绕设在所述中心管的外周壁上，所述滤膜的外周壁与所述安装管的内周壁之间限定出废水通路，所述废水通路与所述废水出口导通。
根据本发明实施例的一体复合滤芯，将预处理滤芯设置成由无细炭粉构成的第一至第三过滤层组成的结构，该结构的预处理滤芯结构简单，在初始安装时，由于没有细炭粉流 出，可以免冲洗；预处理滤芯一体化设计，各过滤层寿命一致，预处理滤芯到期后可以一次性统一更换，解决了消费者需要频繁更换不同滤芯的问题，降低了成本。
另外，根据本发明实施例的一体复合滤芯，还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述预处理还包括：上端盖，所述上端盖设在所述安装管的上端的外周；下端盖，所述下端盖设在所述安装管的下端的外周，所述第一至第三过滤层设在所述上端盖和下端盖之间；支撑管，所述支撑管套设在所述安装管上且位于所述上端盖和下端盖之间，所述第一至第三过滤层设在所述安装管的外周面和所述支撑管的内周面之间，所述支撑管上设有多个内外导通的通孔。
根据本发明的一个实施例，所述预处理还包括：内管，所述内管套设在所述安装管上且所述内管的内周面与所述安装管的外周面间隔开，所述内管的上端和下端分别止抵所述上端盖和下端盖，所述第三过滤层套设在所述内管上，所述内管上设有多个内外导通的过水孔。
根据本发明的一个实施例，所述原水进口为单孔，所述预处理水出口和所述预处理水进口嵌套设置，所述预处理水进口嵌套在所述预处理水出口内。
根据本发明的一个实施例，所述纯水出口和所述废水出口嵌套设置，所述纯水出口嵌套在所述废水出口内。
根据本发明的一个实施例，所述预处理水出口设在所述原水进口下方且位于所述外壳下部，所述纯水出口设在所述下壳上部，所述中心管的上端敞开与所述纯水出口连通。
根据本发明的一个实施例，所述第一过滤层为PP无纺布卷绕层，所述第三过滤层为CRN微滤膜。
根据本发明的一个实施例，所述第一过滤层为5微米PP棉，所述第三过滤层为1微米PP棉。
根据本发明的一个实施例，所述第一过滤层为绕线PP棉，所述第三过滤层为超滤膜。
根据本发明的一个实施例，所述滤膜为反渗透膜、超滤膜或纳滤膜。
根据本发明第二方面实施例的净水系统，包括根据上述实施例所述的一体复合滤芯。
本发明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，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的预处理滤芯的剖视图；
图2是根据本发明实施例的一体复合滤芯的剖视图；
图3是根据本发明实施例的一体复合滤芯的正视图；
图4是根据本发明实施例的一体复合滤芯的侧视图；
图5是根据本发明实施例的一体复合滤芯的俯视图；
图6是根据本发明实施例的一体复合滤芯的进水示意图；
图7是根据本发明实施例的一体复合滤芯的纯水出水示意图；
图8是根据本发明实施例的一体复合滤芯的废水出水示意图；
图9是根据本发明实施例的净水设备的水路图。
附图标记：
预处理滤芯100；一体复合滤芯200；净水系统300；
安装管10；第一过滤层11；第二过滤层12；第三过滤层13；上端盖14；下端盖15；支撑管16；通孔161；内管17；过水孔171；
外壳20；腔室21；原水进口22；预处理水出口23；预处理水进口24；纯水出口25；废水出口26；进水通路27；预处理水出水通路28；废水通路29；
中心管30；入水口31；滤膜40；隔膜泵50；柔性水袋60；抽水泵70；废水比电磁阀80。
具体实施方式
下面详细描述本发明的实施例，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，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“轴向”、“径向”、“长度”、“宽度”、“厚度”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、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发明和简化描述，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发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，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。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，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，可以根据具体情况理解上述术语在本发明中的具体含义。
下面首先结合附图具体描述根据本发明实施例的预处理滤芯100。
如图1所示，根据本发明实施例的预处理滤芯100包括安装管10、第一过滤层11、第二过滤层12和第三过滤层13。
具体而言，安装管10形成为沿上下方向延伸的空心柱状，第一过滤层11、第二过滤层12和第三过滤层13从外到内依次套设在安装管10上，第一过滤层11为PP棉，第二过滤层12为活性炭纤维卷绕层，第三过滤层13为PP棉、微滤膜或超滤膜中的一种。
换言之，根据本发明实施例的主要由安装管10和依次环绕嵌套在安装管10上的三个过滤层组成，三个过滤层沿安装管10的径向从外到内依次为第一过滤层11、第二过滤层12和第三过滤层13。其中，第一过滤层11为PP棉，第二过滤层12为活性炭纤维卷绕层，第三过滤层13为PP棉、微滤膜或超滤膜中的一种。
也就是说，该预处理滤芯100中不包含会产生细炭粉的吸附结构，该预处理滤芯100在初始安装之后，不会流出细炭粉，因此无需进行冲洗。多个过滤层分别一体化设在安装管10上，使用寿命基本一致，预处理滤芯100到期后，可以统一更换。
由此，根据本发明实施例的预处理滤芯100，将预处理滤芯100设置成由无细炭粉构成的第一至第三过滤层组成的结构，该结构的预处理滤芯100结构简单，在初始安装时，由于没有细炭粉流出，可以免冲洗；预处理滤芯100一体化设计，各过滤层寿命一致，预处理滤芯100到期后可以一次性统一更换，解决了消费者需要频繁更换不同滤芯的问题，降低了成本。
根据本发明的一个实施例，预处理滤芯100还包括上端盖14、下端盖15和支撑管16。具体地，上端盖14设在安装管10的上端的外周，下端盖15设在安装管10的下端的外周，第一过滤层11、第二过滤层12和第三过滤层13设在上端盖14和下端盖15之间。支撑管16套设在安装管10上且位于上端盖14和下端盖15之间，第一过滤层11、第二过滤层12和第三过滤层13设在安装管10的外周面和支撑管16的内周面之间，支撑管16上设有多个内外导通的通孔161。
如图1所示，预处理滤芯100包括安装管10，安装管10的上端设有沿安装管10的径向延伸的上端盖14，下端设有沿安装管10的径向延伸的下端盖15，第一过滤层11、第二过滤层12和第三过滤层13设在上端盖14和下端盖15之间，支撑管16设在第三过滤层13外，并且支撑管16的上下两端分别止抵上端盖14和下端盖15。由此，该结构的预处理滤芯100在结构简单的基础上，可以有效保证整体的结构稳定性。
进一步地，根据本发明的一个实施例，预处理滤芯100还包括内管17，内管17套设在 安装管10上且内管17的内周面与安装管10的外周面间隔开，内管17的上端和下端分别止抵上端盖14和下端盖15，第三过滤层13套设在内管17上，内管17上设有多个内外导通的过水孔171。
也就是说，第一过滤层11、第二过滤层12和第三过滤层13不是直接环绕嵌套在安装管10上的，而是环绕嵌套在内管17上，内管17套设在安装管10上并且与安装管10间隔开形成预处理水出水通路，内管17上设有多个与预处理水通路导通的过水孔171。
具体地，根据本发明实施例的预处理滤芯100在使用时，原水从支撑管16的通孔161进入预处理滤芯100，依次经过第一过滤层11、第二过滤层12和第三过滤层13之后，从内管17上的过水孔171进入预处理水出水通路，经过预处理滤芯100预处理的预处理水从预处理水出水通路排出，可以进行进一步过滤。
在本发明的一些具体实施方式中，第一过滤层11、第二过滤层12和第三过滤层13的上端面和下端面分别止抵上端盖14和下端盖15，安装管10与上端盖14一体形成，内管17和下端盖15一体形成。由此，该预处理滤芯100结构更紧凑，并且各部件成型方便，稳定性高，也简化了装配过程，降低了成本。
根据本发明实施例的第一过滤层11，即PP棉层可以是PP无纺布卷绕层，也可以是折叠PP无纺布或者绕线PP棉，第二过滤层12为活性炭纤维卷绕层，也可以是活性炭棒或颗粒活性炭、酸性活性炭等具有吸附功能的材料，第三过滤层13则可以是高精度CRN微滤膜或者超滤膜。
可选地，根据本发明的一个实施例，第一过滤层11为PP无纺布卷绕层，第三过滤层13为CRN微滤膜。在本发明的一些具体实施方式中，第一过滤层11为5微米PP棉，第三过滤层13为1微米PP棉。在本发明的另一些具体实施方式中，第一过滤层11还可以为绕线PP棉，第三过滤层13为超滤膜。
优选地，根据本发明的一个实施例，第三过滤层13的内径尺寸为60-70mm，第三过滤层13的内径与第一过滤层11的外径的差值为15-20mm，第一过滤层11、第二过滤层12和第三过滤层13在上下方向上的高度为100-110mm。进一步地，第三过滤层13的内径尺寸为65mm，第三过滤层13的内径与第一过滤层11的外径的差值为18mm，第一过滤层11、第二过滤层12和第三过滤层13在上下方向上的高度为106mm。
由此，该结构的预处理滤芯100的第一过滤层11、第二过滤层12和第三过滤层13的使用寿命可以保证尽量一致，预处理滤芯100到期后可以统一更换，在解决消费者需要频繁更换不同滤芯的烦恼的同时，可以保证各过滤层都被充分使用，避免某一过滤层出现浪费。
下面结合附图具体描述根据本发明实施例的一体复合滤芯200。
如图2至图8所示，根据本发明实施例的一体复合滤芯200包括外壳20、预处理滤芯100、中心管30和滤膜40。其中，预处理滤芯100为根据本发明上述实施例的预处理滤芯100。
具体而言，外壳20内限定有腔室21，外壳20设有与腔室21导通的原水进口22、预处理水出口23、预处理水进口24、纯水出口25和废水出口26。预处理滤芯100沿腔室21地轴向延伸地安装在腔室21内，预处理滤芯100包括根据上述实施例的安装管10、第一过滤层11、第二过滤层12和第三过滤层13。其中，第一过滤层11与外壳20之间限定出与原水进口22导通的进水通路27，第三过滤层13与安装管10之间限定出与预处理水出口23导通的预处理水出水通路28。
中心管30沿安装管10的轴向延伸地安装在安装管10内，中心管30与安装管10间隔开形成与预处理水进口24导通的过滤腔，中心管30的一端与纯水出口25连通，中心管30的侧壁上设有入水孔31。滤膜40设在过滤腔内且绕设在中心管30的外周壁上，滤膜40的外周壁与安装管10的内周壁之间限定出废水通路29，废水通路29与废水出口26导通。
也就是说，根据本发明实施例的一体复合滤芯200采用了由无细炭粉构成的第一至第三过滤层组成的预处理滤芯100，预处理滤芯100可以对原水进行预处理，经过预处理的预处理水可以经过滤膜40再次过滤，将预处理与后处理进行结合，保证净水效果。
由于根据本发明实施例的预处理滤芯100具有上述技术效果，因此，根据本发明实施例的一体复合滤芯200也具有相应的技术效果，即预处理滤芯100结构简单，在初始安装时，由于没有细炭粉流出，可以免冲洗；预处理滤芯100一体化设计，各过滤层寿命一致，预处理滤芯100到期后可以一次性统一更换，解决了消费者需要频繁更换不同滤芯的问题，降低了成本。
另外，预处理滤芯100与滤膜40构成一体复合滤芯200，预处理滤芯100与滤膜40的使用寿命也可以设置为一致，预处理滤芯100与滤膜40也可以统一更换，预处理滤芯100与滤膜40之间串接，结构紧凑，并且预处理与后处理之间无接头，漏水点少，保证一体复合滤芯200的整体性能。
其中，预处理滤芯100还包括上端盖14、下端盖15和支撑管16。具体地，上端盖14设在安装管10的上端的外周，下端盖15设在安装管10的下端的外周，第一过滤层11、第二过滤层12和第三过滤层13设在上端盖14和下端盖15之间。支撑管16套设在安装管10上且位于上端盖14和下端盖15之间，第一过滤层11、第二过滤层12和第三过滤层13设在安装管10的外周面和支撑管16的内周面之间，支撑管16上设有多个内外导通的通孔 161。
预处理滤芯100还包括内管17，内管17套设在安装管10上且内管17的内周面与安装管10的外周面间隔开，内管17的上端和下端分别止抵上端盖14和下端盖15，第三过滤层13套设在内管17上，内管17上设有多个内外导通的过水孔171。
具体地，根据本发明实施例的一体复合滤芯200主要由外壳20、预处理滤芯100、中心管30和滤膜40构成，预处理滤芯100安装在外壳20内，预处理滤芯100的支撑管161与外壳20之间限定出进水通路27，进水通路27与原水进口22导通，从原水进口22进入外壳20内的原水首先进入进水通路27。
预处理滤芯100的支撑管16上设有多个通孔161，进水通路27内的原水经过多个通孔161依次进入第一过滤层11、第二过滤层12和第三过滤层13，经过第一过滤层11、第二过滤层12和第三过滤层13预处理的预处理水从内管17上的过水孔171进入内管17与安装管10之间的预处理水出水通路28，预处理水出水通路28与预处理水出口23导通，预处理水可以从预处理水出口23流出(如图6中箭头所示)。
从预处理水出口23流出的预处理水可以经过增压装置进行增压处理，经过增压处理的预处理水再从预处理水进口24进入外壳20内，预处理水进入中心管30与安装管10之间的过滤腔(如图6中箭头所示)。经过滤膜40过滤后，预处理水分为废水和净水，净水从中心管30上的入水口31进入中心管30，然后从纯水出口25流出(如图7中箭头所示)。废水从滤膜40与安装管10之间的废水通路29流出废水出口26，完成废水排出(如图8中箭头所示)。
由此，根据本发明实施例的一体复合滤芯200的结构合理，预处理滤芯100没有颗粒活性炭，初次安装无细炭粉流出，整个一体复合滤芯200无需长时间冲洗，大大简化了安装流程。
根据本发明的一个实施例，原水进口22为单孔，预处理水出口23和预处理水进口24嵌套设置，预处理水进口24嵌套在预处理水出口23内。进一步地，纯水出口25和废水出口26嵌套设置，纯水出口25嵌套在废水出口26内。
也就是说，根据本发明实施例的一体复合滤芯200的外壳20上，除了原水进口22为单孔之外，预处理水出口23和预处理水进口24以及纯水出口25和废水出口26均为嵌套设置的结构，即预处理水进口24嵌套在预处理水出口23内，纯水出口25嵌套在废水出口26内。
由此，该结构的一体复合滤芯200的各管口之间配合更方便，与外界连接接头更少，减少了漏水点，并且一体复合滤芯200内各水路分布更合理，使得一体复合滤芯200的整体结构更为紧凑，便于一体复合滤芯200的小型化设计。
在本发明的一些具体实施方式中，预处理水出口23设在原水进口22下方且位于外壳20下部，纯水出口25设在下壳上部，中心管的上端敞开与纯水出口25连通。
也就是说，嵌套设置的预处理水出口23和预处理水进口24设在外壳20的邻近下部的位置，嵌套设置的纯水出口25和废水出口26则设在外壳20的邻近上部的位置，原水进口22设在预处理水出口23和预处理水进口24上方。
该结构的一体复合滤芯200在使用时，原水从外壳20的下部的原水进口22进入外壳20内，经过第一过滤层11、第二过滤层12和第三过滤层13过滤后，从位于一体复合滤芯200下方的嵌套复孔的外孔水路流出，即从预处理水出口23流出，经过增压后，再从预处理水进口24进入外壳20，从一体复合滤芯200的底部向上，进入过滤腔，经过滤膜40过滤后，分为净水和废水两路再向上从纯水出口25和废水出口26排出。
由此，该结构的一体复合滤芯200的水路设置更为合理，便于原水的流动和过滤，提高了一体复合滤芯200的净水效率。
在本发明的一些具体实施方式中，滤膜40可以为反渗透膜、超滤膜或纳滤膜。由此，该结构的滤膜40在保证过滤效果的基础上，既便于装配，又可以合理控制一体复合滤芯200的成本。
如图9所示，根据本发明实施例的净水系统300包括根据上述实施例的一体复合滤芯200，其中，预处理水出口23与预处理水进口24之间设有隔膜泵50，纯水出口25处还可以设有柔性水袋60和抽水泵70，废水出口26处可以设有废水比电磁阀80。
由于根据本发明上述实施例的一体复合滤芯200具有上述技术效果，因此，根据本发明实施例的净水系统300也具有相应的技术效果，即净水系统300整体结构紧凑，漏水点少，并且初始安装时无需冲洗，一体复合滤芯200各过滤层寿命统一，可统一更换，便于消费者使用。
根据本发明实施例的净水系统300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发明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。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在不脱离本发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (11)

  1. 一种一体复合滤芯，其特征在于，包括：
    外壳，所述外壳内限定有腔室，所述外壳设有与所述腔室导通的原水进口、预处理水出口、预处理水进口、纯水出口和废水出口；
    预处理滤芯，所述预处理滤芯沿所述腔室地轴向延伸地安装在所述腔室内，所述预处理滤芯包括：
    安装管，所述安装管形成为沿上下方向延伸的空心柱状；
    第一至第三过滤层，所述第一至第三过滤层从外到内依次套设在所述安装管上，所述第一过滤层为PP棉，所述第二过滤层为活性炭纤维卷绕层，所述第三过滤层为PP棉、微滤膜或超滤膜中的一种，所述第一过滤层与所述外壳之间限定出与所述原水进口导通的进水通路，所述第三过滤层与安装管之间限定出与所述预处理水出口导通的预处理水出水通路；
    中心管，所述中心管沿所述安装管的轴向延伸地安装在所述安装管内，所述中心管与所述安装管间隔开形成与所述预处理水进口导通的过滤腔，所述中心管的一端与所述纯水出口连通，所述中心管的侧壁上设有入水孔；
    滤膜，所述滤膜设在所述过滤腔内且绕设在所述中心管的外周壁上，所述滤膜的外周壁与所述安装管的内周壁之间限定出废水通路，所述废水通路与所述废水出口导通。
  2. 根据权利要求1所述的一体复合滤芯，其特征在于，所述预处理还包括：
    上端盖，所述上端盖设在所述安装管的上端的外周；
    下端盖，所述下端盖设在所述安装管的下端的外周，所述第一至第三过滤层设在所述上端盖和下端盖之间；
    支撑管，所述支撑管套设在所述安装管上且位于所述上端盖和下端盖之间，所述第一至第三过滤层设在所述安装管的外周面和所述支撑管的内周面之间，所述支撑管上设有多个内外导通的通孔。
  3. 根据权利要求1或2所述的一体复合滤芯，其特征在于，所述预处理还包括：内管，所述内管套设在所述安装管上且所述内管的内周面与所述安装管的外周面间隔开，所述内管的上端和下端分别止抵所述上端盖和下端盖，所述第三过滤层套设在所述内管上，所述内管上设有多个内外导通的过水孔。
  4. 根据权利要求1-3中任一项所述的一体复合滤芯，其特征在于，所述原水进口为单孔，所述预处理水出口和所述预处理水进口嵌套设置，所述预处理水进口嵌套在所述预处理水出口内。
  5. 根据权利要求4所述的一体复合滤芯，其特征在于，所述纯水出口和所述废水出口嵌套设置，所述纯水出口嵌套在所述废水出口内。
  6. 根据权利要求5所述的一体复合滤芯，其特征在于，所述预处理水出口设在所述原水进口下方且位于所述外壳下部，所述纯水出口设在所述下壳上部，所述中心管的上端敞开与所述纯水出口连通。
  7. 根据权利要求1-6中任一项所述的一体复合滤芯，其特征在于，所述第一过滤层为PP无纺布卷绕层，所述第三过滤层为CRN微滤膜。
  8. 根据权利要求1-7中任一项所述的一体复合滤芯，其特征在于，所述第一过滤层为5微米PP棉，所述第三过滤层为1微米PP棉。
  9. 根据权利要求1-8中任一项所述的一体复合滤芯，其特征在于，所述第一过滤层为绕线PP棉，所述第三过滤层为超滤膜。
  10. 根据权利要求1-9中任一项所述的一体复合滤芯，其特征在于，所述滤膜为反渗透膜、超滤膜或纳滤膜。
  11. 一种净水系统，其特征在于，包括权利要求1-10中任一项所述的一体复合滤芯。
PCT/CN2015/078075 2014-12-19 2015-04-30 一体复合滤芯和具有其的净水系统 WO2016095401A1 (zh)

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