CN114570077A - Stage type filter element and water purifying device - Google Patents

Stage type filter element and water purifying device Download PDF

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Publication number
CN114570077A
CN114570077A CN202210301840.6A CN202210301840A CN114570077A CN 114570077 A CN114570077 A CN 114570077A CN 202210301840 A CN202210301840 A CN 202210301840A CN 114570077 A CN114570077 A CN 114570077A
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CN
China
Prior art keywords
filter element
filter core
water
filter
end cover
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210301840.6A
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Chinese (zh)
Inventor
李友铃
陈宝
安德荣
陈群
符之之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202210301840.6A priority Critical patent/CN114570077A/en
Publication of CN114570077A publication Critical patent/CN114570077A/en
Priority to PCT/CN2022/127395 priority patent/WO2023179012A1/en
Pending legal-status Critical Current

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    • 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
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/002—Apparatus for making beverages following a specific operational sequence, e.g. for improving the taste of the extraction product
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/441—Warming devices or supports for beverage containers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/446—Filter holding means; Attachment of filters to beverage-making apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/48—Clips, rings, hooks, or like devices to support filter parts while not in use
    • 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
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B01D29/216—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets with wound sheets
    • 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
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B01D29/945—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
    • 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
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • 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
    • B01D35/306—Filter mounting adapter
    • 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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/02—Location of water treatment or water treatment device as part of a bottle

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention provides a stage type filter element and a water purifying device, wherein the stage type filter element comprises: first filter core, second filter core and supporting member, the supporting member can be right simultaneously first filter core with the second filter core supports, and the raw water can pass through first filter core filters, passes through first filter core filters out pure water and can gets into supporting member's inside and along the supporting member is discharged, passes through first filter core filters out thick water can reach second filter core department filters, passes through second filter core filters out pure water also can get into supporting member's inside and along the supporting member is discharged, passes through second filter core filters out thick water can be through thick water export and is discharged. The invention can realize the stage type filtering technology, realize the filtering function of the stage type filter element on the same central tube, improve the recovery rate, reduce the volume and solve the problem of the volume control of the whole machine caused by the series connection of a plurality of filter elements.

Description

Stage type filter element and water purifying device
Technical Field
The invention belongs to the technical field of water purification, and particularly relates to a stage type filter element and a water purification device.
Background
The core component of purifier is the filter core, and the meticulous filter core that wherein performance main purification effect used, the meticulous filter core that current purifier used mainly includes formula of book reverse osmosis and formula of book nanofiltration membrane filter core, and it is formula of book membrane combination and rolls up the system on the center tube of gluing technology book, realizes the high-accuracy filtration function of single-stage. With the development of water purifiers, high water yield becomes a development trend of the water purifiers in recent years. In order to realize the trend in the field of household water purification, the prior technical means comprises adding a chemical scale inhibition filter element in front of a fine filter element, and effectively inhibiting the scaling trend of divalent ions so as to improve the water yield; and two fine filtering filter elements are connected in series, and the concentrated water of the former filter element is used as the raw water of the second filter element to realize high water yield. The two ways of realizing the water yield of purified water have good effects, but have corresponding problems that the release of chemical scale-inhibiting substances influences the water quality sanitation and safety, and the serial use of a plurality of filter elements is not beneficial to the volume control of the whole machine.
The water that purifies through meticulous filter core is weak acidity generally, all need to establish ties a carbon filter core at back in order to promote the taste and improve the taste, and the problem that the filter core of establishing ties brought is that the complete machine design complexity increases, is unfavorable for whole quick-witted volume control simultaneously.
Because the traditional filter element assembly in the prior art has the technical problems that the recovery rate cannot be improved, the volume can be reduced and the like, the invention researches and designs a stage type filter element and a water purifying device.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the traditional filter element component in the prior art cannot simultaneously improve the recovery rate and reduce the volume, thereby providing a stage type filter element and a water purifying device.
The invention provides a staged filter element, comprising:
first filter core, second filter core and supporting member, the supporting member can be right simultaneously first filter core with the second filter core supports, and the raw water can pass through first filter core filters, passes through first filter core filters out pure water and can gets into supporting member's inside and along the supporting member is discharged, passes through first filter core filters out thick water can reach second filter core department filters, passes through second filter core filters out pure water also can get into supporting member's inside and along the supporting member is discharged, passes through second filter core filters out thick water can be through thick water export and is discharged.
In some embodiments, the bracing member is the structure of center tube, the center tube is for having hollow cavity's cylindrical pipe, is provided with the water conservancy diversion hole that runs through interior outer wall on its pipe wall, the water conservancy diversion hole include with the relative first water conservancy diversion hole in position of first filter core and with the relative second water conservancy diversion hole in position of second filter core, process the pure water that first filter core filtered out can pass through first water conservancy diversion hole gets into the inside of center tube, process the pure water that the second filter core filtered out can pass through first water conservancy diversion hole gets into the inside of center tube.
In some embodiments, the central tube sequentially includes a first shaft section, a second shaft section and a third shaft section along an axial direction thereof, the first shaft section is provided with the first diversion hole, the third shaft section is provided with the second diversion hole, the second shaft section is not provided with the diversion hole, the first filter element is wound around an outer periphery of the first shaft section, and the second filter element is wound around an outer periphery of the third shaft section.
In some embodiments, the center tube is an injection molded part; the first filter element and the second filter element are arranged at intervals, a first water stop piece is arranged at the interval part, and the first water stop piece is opposite to the second shaft section; and/or the presence of a gas in the atmosphere,
the first shaft segment has an axial length of D1, the second shaft segment has an axial length of D2, the third shaft segment has an axial length of D3, and has a D1: d2 is 1-2.5.
In some embodiments, the central tube is arranged such that a central axis thereof is along a vertical direction, the first filter element is located above the second filter element, the first shaft section, the second shaft section and the third shaft section are sequentially connected from top to bottom, an upper end of the central tube is a closed end, and raw water enters the first filter element through a top of the first filter element.
In some embodiments, the lower end of the central pipe is an open end and forms a pure water outlet, the lower end of the second filter element is provided with a second water stop capable of sealing water, and the lower end of the second water stop is provided with the concentrated water outlet.
In some embodiments, the center tube still includes fourth axial segment and fifth axial segment, third water conservancy diversion hole has still been seted up on the fifth axial segment, stage formula filter core still includes the third filter core, first filter core winding is in the periphery of first axial segment, process the thick water that the second filter core filtered out can reach third filter core department filters, process the pure water that the third filter core filtered out also can enter the inside of center tube and along the center tube is discharged, process the thick water that the third filter core filtered out can pass through thick water export and be discharged.
In some embodiments, the support member includes end cover assembly, first rearmounted filter core and second rearmounted filter core, the inside of first rearmounted filter core has first cavity, the inside of second rearmounted filter core has second cavity, first rearmounted filter core with first filter core is relative, the pure water that first filter core filtered out can pass through after first rearmounted filter core further filters and go into in the first cavity, the pure water that the second filter core filtered out can pass through after the second rearmounted filter core further filters and go into in the second cavity, first cavity with second cavity intercommunication.
In some embodiments, the end cap assembly includes a first end cap, a second end cap, and a third end cap, the first end cap connecting an axial end disposed on the first rear filter element opposite the second rear filter element, the second end cap connecting an axial end disposed between the first rear filter element and the second rear filter element, the third end cap connecting an axial end disposed on the second rear filter element opposite the first rear filter element.
In some embodiments, the first filter element is wound around the outer periphery of the first rear filter element, the second filter element is wound around the outer periphery of the second rear filter element, the first filter element and the second filter element are arranged at intervals, a first water stop piece is arranged at an interval, and the first water stop piece is opposite to the second end cover.
In some embodiments, the first rear filter element is positioned above the second rear filter element, the first rear filter element coinciding with a central axis of the second rear filter element and extending in a vertical direction;
the first end cover, the second end cover and the third end cover are sequentially arranged at intervals from top to bottom;
the upper end of the first end cover is a closed end, and raw water enters the first filter element through the upper part of the first filter element;
the lower extreme of third end cover is the open end, forms to the pure water outlet, the lower extreme of second filter core is provided with the second water stop, the second water stop can seal water, just form between the second water stop with the third end cover dense water outlet.
In some embodiments, the first end cap, the second end cap, and the third end cap are all injection molded parts; the first rear filter element and the second rear filter element are both made of microporous filter materials, and the pore diameter of each microporous filter material is 0.02-15 mu m.
In some embodiments, the microporous filter comprises at least one of activated carbon and ceramic.
In some embodiments, one axial end of the first rear filter element is bonded to the first end cap, and the other axial end of the first rear filter element is bonded to the second end cap; one axial end of the second rear filter element is bonded with the second end cover, and the other axial end of the second rear filter element is bonded with the third end cover;
the outer diameter of the first rear filter element is less than or equal to that of the first end cover, and the outer diameter of the first rear filter element is less than or equal to that of the second end cover;
the outer diameter of the second rear filter element is smaller than or equal to that of the second end cover, and the outer diameter of the second rear filter element is smaller than or equal to that of the third end cover.
The invention also provides a water purification device, which comprises the stage type filter element.
The stage type filter element and the water purifying device provided by the invention have the following beneficial effects:
1. according to the invention, the first filter element and the second filter element are arranged on the same supporting member, pure water filtered by the first filter element is discharged from a pure water outlet, filtered concentrated water (impurity water) enters the second filter element for filtering, and at least one-stage two-stage filtering is formed; the stage type filter element filtering technology is realized on the same central pipe, the use of a plurality of filter bottles with filter elements connected in series is omitted, the integrated design of the filter elements can be realized, and the filter element has an important promotion effect on reducing the volumes of the filter elements and the whole machine; compared with the filter element technology with high recovery rate by using the scale inhibitor (the scale inhibitor is not needed by a first-stage two-section (at least two-section) mode), the multistage filter element technology has no sanitary and safety problems caused by the release of the scale inhibitor.
2. The invention realizes the stage type filter element filtering technology on the same central tube, saves the use of a plurality of filter bottles with filter elements connected in series, can realize the integrated design of the filter elements, and has important promotion effect on reducing the volume of the filter elements and the whole machine; the invention also ensures that the fine filtering filter element can exert the stage type filtering function to improve the water yield of purified water by arranging the supporting member comprising the end cover component and the two post-arranged filter elements, and simultaneously can realize the integration level of the filter element and the post-arranged taste filter element, reduce the using number of filter bottles and be beneficial to the small-volume design function of the whole machine; the fine filtering filter element and the rear taste filter element are integrated, and the small-volume design of the whole machine is facilitated.
Drawings
FIG. 1 is a schematic structural view of a conventional center tube of the prior art;
FIG. 2 is a schematic structural view of a center tube (pure injection molded part) of a one-stage two-stage filter element of the present invention (example 1);
FIG. 3 is a schematic structural view of a first stage two-stage cartridge central tube (injection molded part + filter material combination) of the present invention (example 2);
FIG. 4 is a schematic view of the construction of FIG. 2 showing the mating of the center tube to the filter element of the present invention (example 1);
FIG. 5 is a schematic view of the configuration of FIG. 3 showing the mating of the center tube to the filter element of the present invention (example 2);
fig. 6 is a schematic view of the construction of a center tube (injection molded part) of a one-stage three-stage cartridge of the present invention (example 3).
The reference numbers in the figures denote:
1. a first filter element; 2. a second filter element; 3. a raw water inlet; 4. a concentrated water outlet; 5. a central tube; 51. a first shaft section; 52. a second shaft section; 53. a third shaft section; 54. a fourth shaft section; 55. a fifth shaft section; 61. a first flow guide hole; 62. a second flow guide hole; 63. a third flow guide hole; 71. a first water-stop member; 72. a second water-stop member; 8. a pure water outlet; 9. an end cap assembly; 91. a first end cap; 92. a second end cap; 93. a third end cap; 10. a first rear filter element; 11. the second rear filter element.
Detailed Description
As shown in fig. 2-6, the present invention provides a staged filter cartridge comprising:
first filter core 1, second filter core 2 and supporting member, the supporting member can be right simultaneously first filter core 1 with second filter core 2 supports, and the raw water can pass through first filter core 1 filters, passes through the pure water that first filter core 1 filtered out can get into supporting member's inside and along the supporting member is discharged, passes through the thick water that first filter core 1 filtered out can reach second filter core 2 department filters, passes through the pure water that second filter core 2 filtered out also can get into supporting member's inside and along the supporting member is discharged, passes through the thick water that second filter core 2 filtered out can be through thick water export 4 and discharged.
According to the invention, the first filter element and the second filter element are arranged on the same supporting member, pure water filtered by the first filter element is discharged from a pure water outlet, filtered concentrated water (impurity water) enters the second filter element for filtering, and at least one-stage two-stage filtering is formed; compared with the filter element technology with high recovery rate by using the scale inhibitor (the scale inhibitor is not needed by a first-stage two-section (at least two-section) mode), the multistage filter element technology has no sanitary and safety problems caused by the release of the scale inhibitor.
The invention realizes the stage type filtering technology of the one-stage two-section roll type membrane filter element on the same central pipe by the filter element gluing process design and the post-stage membrane repairing process, has the characteristic of high water yield compared with the traditional single-stage filter element filtering, and has the promotion effect of reducing the volume of the filter element and the volume of a corresponding machine type compared with the stage type filter element technology of connecting a plurality of filter elements in series by the integrated design.
First two sections explain: the filter comprises two filter elements, and the two filter elements have the same filtering precision and are called as a first stage; the first part of the filter element generates concentrated water which is called a first section, and the first part of the concentrated water enters the second part of the filter element as raw water and also generates concentrated water which is called a second section. In general, it is a first stage and a second stage.
Stage (2): corresponding to filtering progress
Section (2): corresponding times of concentrated water generation
The rolled membrane filter element is a flat membrane which is wound and rolled on a central tube with holes through the action of glue, adhesive tape and the like. A central tube used by a traditional single-stage fine filtering element is shown in figure 1, the material of the central tube is generally an injection molding part, the central tube is cylindrical and is provided with through pure water diversion holes, and the pure water diversion holes are generally uniformly distributed; in addition, in the axial direction, one end of the central pipe is closed, and the central pipe is used for separating the collected pure water from other water; the other end is open for conducting the collected pure water out.
Example 1, as shown in fig. 2 and 4, in some embodiments, the support member is a structure of a central tube 5, the central tube 5 is a cylindrical tube with a hollow cavity, and flow guide holes penetrating through inner and outer walls are formed in a tube wall of the central tube, the flow guide holes include a first flow guide hole 61 opposite to the first filter element 1 and a second flow guide hole 62 opposite to the second filter element 2, pure water filtered by the first filter element 1 can enter the inside of the central tube 5 through the first flow guide hole 61, and pure water filtered by the second filter element 2 can enter the inside of the central tube 5 through the second flow guide hole 62.
The preferable structure form is that in embodiment 1 of the present invention, the support member is preferably set to be a structure of the central tube (the whole is an injection molding), and can effectively support the first and second filter elements, and can effectively guide the pure water filtered by the first filter element into the inner cavity of the central tube through the first flow guide holes formed in the support member and guide the pure water out, the second flow guide holes effectively guide the pure water filtered by the second filter element into the inner cavity of the central tube and guide the pure water out, and the impurity water (concentrated water) filtered by the first filter element enters the second filter element for filtering, so that the filtering effect on the concentrated water can be effectively improved, the recovery rate of the wastewater is improved, the water yield is improved, the volume is reduced, and the structure is more compact.
Fig. 4 is a schematic diagram of a filter element waterway structure based on the first-stage two-section central pipe of the injection molding part shown in fig. 2, and only has the functions of purifying the same central pipe in the first stage and in the second stage and improving the water yield. The filter comprises a central pipe, a first filter element 1, a second filter element 2, a first water stop piece 71 and a second water stop piece 72. Wherein, raw water gets into from the terminal surface that first filter core 1 is close to the center tube tail end, and pure water is collected into in the center tube through the water conservancy diversion hole, and thick water then gets into from being close to first filter core 1 thick water end as the raw water of second filter core 2, and pure water joins with the pure water of first filter core 1 after the water conservancy diversion hole is collected and is discharged from the pure water mouth, and thick water is then discharged from the terminal surface. The first water stop 71 serves to separate raw water (raw water on the outer periphery) from the concentrated water in the first filter element 1, and the second water stop 72 serves to separate the concentrated water in the second filter element 2 from the raw water (raw water on the outer periphery).
In some embodiments, the central tube 5 includes, in order along an axial direction thereof, a first shaft section 51, a second shaft section 52, and a third shaft section 53, the first shaft section 51 is provided with the first guide hole 61, the third shaft section 53 is provided with the second guide hole 62, the second shaft section 52 is not provided with the guide holes, the first filter element 1 is wound around an outer circumference of the first shaft section 51, and the second filter element 2 is wound around an outer circumference of the third shaft section 53. The central tube is preferably provided with a first axial section, a second axial section and a third axial section along the axial direction, the first axial section is provided with a first flow guide hole, the first filter element is wound on the periphery of the first axial section and can guide pure water filtered by the first filter element into an inner cavity of the central tube through the first flow guide hole, the third axial section is provided with a second flow guide hole, and the second filter element is wound on the periphery of the third axial section and can guide pure water filtered by the second filter element into the inner cavity of the central tube through the second flow guide hole. Realize one-level two sections on same root center tube, need reserve the distance (being the second shaft section) of a D2 between D1 and D3, form two parts filter core when the purpose is used for repairing the membrane, wherein, the up end initial surface of D2 is the terminal surface that first section filter core is close to second section filter core, and the terminal surface is the terminal surface that second section filter core is close to first section filter core. The first-stage two-section central tube shown in fig. 2 can integrate the first-stage two-section technology of connecting a plurality of traditional filter elements in series on the same central tube, thereby realizing high water yield and reducing the number of filter bottles. But the filtering function is only the purifying function of the fine filtering filter element and is single-stage purification.
In some embodiments, the central tube 5 is an injection molded piece; the first filter element 1 and the second filter element 2 are arranged at intervals, a first water stop piece 71 is arranged at the interval position, and the first water stop piece 71 is opposite to the second shaft section 52; and/or the presence of a gas in the gas,
the first shaft segment 51 has an axial length of D1, the second shaft segment 52 has an axial length of D2, the third shaft segment 53 has an axial length of D3, and has a D1: d2 is 1-2.5.
The central tube in the embodiment 1 of the invention is an integral injection molding piece (preferably integral plastic integral injection molding), and can effectively support the inner periphery of the filter element and play a role in guiding pure water; the first water-stop piece is used for effectively separating and separating the concentrated water in the filter element from the raw water at the periphery and preventing the concentrated water and the raw water from mixing. In the technical scheme of the invention, a central tube capable of realizing one-stage and two-stage functions is taken as an example for explanation. Fig. 2 is a structure that can implement a first-stage two-stage center tube, and compared with the conventional center tube in fig. 1, the pure water diversion hole is divided into two parts, specifically, a first pure water diversion hole (first diversion hole 61) and a second pure water diversion hole (second diversion hole 62), where the first diversion hole 61 is used for collecting pure water generated by the first-stage filter element and the positions of the first diversion hole are distributed in a region D1; the second diversion holes 62 are used for collecting the pure water generated by the second section of filter element and are distributed in the area D3. In order to realize one-stage two-stage operation, the length ratio of the D1 area to the D2 area is also required, and the optimal scheme is D1: d2 ═ 1 to 2.5: 1, the membrane can be effectively repaired, and simultaneously, the primary two-section filtration can be realized.
In some embodiments, the central tube 5 is disposed such that the central axis thereof is along a vertical direction, the first filter element 1 is located above the second filter element 2, the first shaft section 51, the second shaft section 52 and the third shaft section 53 are sequentially connected from top to bottom, the upper end of the central tube 5 is a closed end, and raw water enters the first filter element 1 through the upper side (raw water inlet 3) of the first filter element 1. The central tube is arranged along the vertical direction of the central axis to form a first shaft section, a second shaft section and a third shaft section from top to bottom, the first filter element and the second filter element are also arranged from top to bottom, the upper end of the central tube is closed to prevent raw water from entering the interior of the central tube, the raw water inlet is above the first filter element, the raw water enters the first filter element for filtering, and the filtered pure water enters the interior of the central tube through the first diversion holes.
In some embodiments, the lower end of the central tube 5 is an open end, forming a pure water outlet 8, the lower end of the second filter element 2 is provided with a second water stop 72, the second water stop 72 is capable of sealing water, and the lower end of the second water stop 72 is provided with the concentrated water outlet 4. The lower end of the central tube is an open end, so that a pure water outlet can be effectively formed, pure water in the central tube can be effectively led out, the lower end of the second filter element can be sealed and separated through the second water-stop piece, and a concentrated water outlet is formed between the lower end of the second water-stop piece and the central tube, so that impurity water filtered by the second filter element can be effectively led out.
Example 3, in some embodiments, the center tube 5 further includes a fourth axial segment 54 and a fifth axial segment 55, a third diversion hole 63 is further formed in the fifth axial segment 55, the stage filter further includes a third filter element, the first filter element 1 is wound around the periphery of the first axial segment 51, the concentrate filtered by the second filter element 2 can reach the third filter element for filtering, the pure water filtered by the third filter element can also enter the center tube and is discharged along the center tube, and the concentrate filtered by the third filter element can pass through the concentrate outlet 4 and is discharged. The preferred structure form of embodiment 3 of the present invention is as shown in fig. 6, that is, five shaft segments are arranged in the axial direction, and three diversion holes are formed at the beginning, so that the purification and filtration effect of one stage and multiple stages can be realized, and the position of the pure water diversion hole is provided according to the requirement of the stage-type filter element, and the purification function of one stage and multiple stages can also be realized.
Example 2, as shown in fig. 3 and 5, in some embodiments, the support member includes an end cap assembly 9, a first rear filter element 10, and a second rear filter element 11, the first rear filter element 10 has a first hollow cavity inside, the second rear filter element 11 has a second hollow cavity inside, the first rear filter element 10 is opposite to the first filter element 1, pure water filtered by the first filter element 1 can pass through the first rear filter element 10 and enter the first hollow cavity, pure water filtered by the second filter element 2 can pass through the second rear filter element 11 and enter the second hollow cavity, and the first hollow cavity is communicated with the second hollow cavity. The invention also ensures that the fine filtering filter element can exert the stage type filtering function to improve the water yield of purified water by arranging the supporting member comprising the end cover component and the two post-arranged filter elements, and simultaneously can realize the integration level of the filter element and the post-arranged taste filter element, reduce the using number of filter bottles and be beneficial to the small-volume design function of the whole machine; the fine filtering filter element and the rear taste filter element are integrated, and the small-volume design of the whole machine is facilitated.
Fig. 5 is a schematic diagram of a filter element waterway structure based on the first-stage two-section central tube of the injection molding part shown in fig. 3, and the filter element waterway structure simultaneously has the same central tube to realize the first-stage two-section purification function, so that the water yield is improved, and meanwhile, the filter element waterway structure can be tightly attached to a rear filter element to realize the two-stage purification function on one filter element assembly. The structure of the filter element is basically the same as that of the filter element shown in figure 4, the difference point is formed by combining an injection molding piece and a microporous filter material in a central tube, one-stage two-section purification can be realized, the water production rate can be improved, the in-situ purification of the fine filter element can be realized, and the two-in-one filter element structure can be realized.
In some embodiments, the end cap assembly 9 includes a first end cap 91, a second end cap 92, and a third end cap 93, the first end cap 91 is connected to an axial end of the first rear filter element 10 opposite to the second rear filter element 11, the second end cap 92 is connected to the first rear filter element 10 and the second rear filter element 11, and the third end cap 93 is connected to an axial end of the second rear filter element 11 opposite to the first rear filter element 10. The end cover assembly is a preferred structure form of the end cover assembly, namely, the first end cover is used for supporting and fixing one end of the first rear filter element, the second end cover is used for supporting and fixing the other end of the first rear filter element, the second end cover can also support and fix one end of the second rear filter element, and the third end cover supports and fixes the other end of the second rear filter element.
Compared with the central tube shown in fig. 2, the central tube capable of realizing one-stage two-section functions shown in fig. 3 is composed of an injection molding part and a filter material together, can realize the purpose of realizing high water yield of the fine filter element by one stage and two sections, and can form a two-stage filter element by in-situ compounding with a post-positioned filter element of the fine filter element. The filter comprises a first end cover 91, a second end cover 92, a third end cover 93, a first rear filter element 10 and a second rear filter element 11.
The outer diameter and the effective inner diameter of the 3 end covers are the same, so that the initial filter element is convenient to manufacture; one end of the first end cover 91 is sealed, so that the purpose of waterway separation is realized; the two ends of the second end cover 92 are communicated, so that the waterway conduction is realized; the third end cap 93 is also communicated with two ends of the water pipe, so that the collected pure water is discharged, and meanwhile, the outer surface of the third end cap, which is close to the water outlet end, is provided with a sealing groove characteristic and is used for realizing water path separation.
In some embodiments, the first filter element 1 is wound around the outer periphery of the first rear filter element 10, the second filter element 2 is wound around the outer periphery of the second rear filter element 11, the first filter element 1 and the second filter element 2 are arranged at an interval, and a first water stop member 71 is arranged at the interval, and the first water stop member 71 is opposite to the second end cap 92. The first filter element is wound on the periphery of the first rear filter element, so that pure water filtered by the first filter element can be conveyed to the first rear filter element radially inwards for further filtering and purification, and the second filter element is wound on the periphery of the second rear filter element, so that pure water filtered by the second filter element can be conveyed to the second rear filter element radially inwards for further filtering and purification; the first water-stop piece can separate and seal the concentrated water on the inner periphery of the first water-stop piece from the raw water on the outer periphery of the first water-stop piece, so that the concentrated water and the raw water are prevented from mixing.
In some embodiments, the first rear filter element 10 is located above the second rear filter element 11, and the first rear filter element 10 coincides with the central axis of the second rear filter element 11 and extends in the vertical direction;
the first end cover 91, the second end cover 92 and the third end cover 93 are sequentially arranged at intervals from top to bottom;
the upper end of the first end cover 91 is a closed end, and raw water enters the first filter element 1 through the upper part of the first filter element 1;
the lower end of the third end cover 93 is an open end and is formed into a pure water outlet 8, the lower end of the second filter element 2 is provided with a second water stop piece 72, the second water stop piece 72 can seal water, and the concentrated water outlet 4 is formed between the second water stop piece 72 and the third end cover 93.
The water purifier is a further preferable structure form of embodiment 2 of the present invention, that is, the first and second post-filter elements arranged in the vertical direction can make raw water flow into the first filter element from top to bottom for filtering, and then convey the concentrated water in the first filter element to the second filter element for filtering, so as to form a one-stage two-stage filtering structure, the pure water opening formed below the third end cap can effectively lead out the pure water filtered by the post-filter element, and the concentrated water outlet is used for leading out the impurity water filtered by the second filter element.
In some embodiments, the first end cap 91, the second end cap 92, and the third end cap 93 are all injection molded parts; the first rear filter element 10 and the second rear filter element 11 are both made of microporous filter materials, and the pore diameter of each microporous filter material is 0.02-10 pm. The three end covers are all made of injection molding parts, so that the three end covers can effectively play a role in supporting and fixing, the first post-positioned filter element and the second post-positioned filter element are made of microporous filter materials, so that the pure water filtered by the first filter element and the pure water filtered by the second filter element can be further finely filtered, the taste of the water can be improved, and the filtering precision can be improved.
In some embodiments, the microporous filter comprises at least one of activated carbon and ceramic. Compare in the visual hole of injection molding, its product water that can realize meticulous filtration filter core realizes face formula contact with rearmounted filter core, and purifying effect is better. The length ratio of the first rear filter element 10 to the second rear filter element 11 is 1-2.5.
In some embodiments, one axial end of the first rear filter element 10 is bonded to the first end cap 91, and the other axial end of the first rear filter element 10 is bonded to the second end cap 92; one axial end of the second rear filter element 11 is bonded to the second end cap 92, and the other axial end of the second rear filter element 11 is bonded to the third end cap 93;
the outer diameter of the first rear filter element 10 is less than or equal to the outer diameter of the first end cover 91, and the outer diameter of the first rear filter element 10 is also less than or equal to the outer diameter of the second end cover 92;
the outer diameter of the second rear filter element 11 is smaller than or equal to the outer diameter of the second end cap 92, and the outer diameter of the second rear filter element 11 is also smaller than or equal to the outer diameter of the third end cap 93.
The first rear filter element is preferably fixed with the two end covers in a bonding mode, the first rear filter element 10 is cylindrical, the outer diameter of the first rear filter element is less than or equal to the outer diameter of the first end cover 91 and the second end cover 92, the inner diameter of the first rear filter element is equal to the outer wall of the effective inner diameter of the two end covers, the first rear filter element 10 and the two end covers are bonded and fixed on the matched end faces through glue;
the second rear filter element 11 is cylindrical, the outer diameter of the second rear filter element is less than or equal to the outer diameter of the second end cover 92 and the third end cover 93, the inner diameter of the second rear filter element is equal to the outer wall of the effective inner diameter of the two end covers, the second rear filter element 11 is attached to the two end covers through glue, and the second rear filter element is fixedly connected to the matched end faces through glue;
the invention also provides a water purification device, which comprises the stage type filter element.
The invention uses a stage type filter element technology as a way of realizing high water yield, realizes the stage type filter element technology on the same central tube by providing the central tube with optimized design, namely realizes the stage type filtering function on one filter element component to achieve the aim of improving the water yield of purified water, and simultaneously solves the volume control problem caused by the stage type filter element technology in which a plurality of filter elements are connected in series. In addition, the center tube that this technical scheme provided, when guaranteeing meticulous filter core performance stage formula filtering capability and promoting the water yield of water purification, still can realize promoting the filter core integrated level, reducing the filter flask use quantity with the integration of rearmounted taste filter core, do benefit to the small volume design function of complete machine.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (15)

1. A staged filter element, comprising: the method comprises the following steps:
first filter core (1), second filter core (2) and supporting member, the supporting member can be right simultaneously first filter core (1) with second filter core (2) support, and the raw water can pass through first filter core (1) filters, passes through first filter core (1) filters out pure water and can get into the inside of supporting member and along the supporting member is discharged, passes through first filter core (1) filters out dense water and can reach second filter core (2) department filters, passes through second filter core (2) filters out pure water also can get into the inside of supporting member and along the supporting member is discharged, passes through second filter core (2) filters out dense water and can be discharged through dense water export (4).
2. The staged filter cartridge of claim 1, wherein:
the utility model discloses a water purification filter, including support component, center tube (5), water conservancy diversion hole, first water conservancy diversion hole (61) and second water conservancy diversion hole (62) that the position of second filter core (2) is relative, the support component is the structure of center tube (5), for the cylindrical pipe that has hollow cavity, be provided with the water conservancy diversion hole that runs through interior outer wall on center tube (5) of center tube (5), the water conservancy diversion hole include with first water conservancy diversion hole (61) that the position of first filter core (1) is relative and with the second water conservancy diversion hole (62) that the position of second filter core (2) is relative, process first filter core (1) pure water of filtering off can pass through first water conservancy diversion hole (61) gets into the inside of center tube (5), process second filter core (2) pure water of filtering off can pass through second water conservancy diversion hole (62) get into the inside of center tube (5).
3. The staged filter cartridge of claim 2, wherein:
the central tube (5) sequentially comprises a first shaft section (51), a second shaft section (52) and a third shaft section (53) along the axial direction of the central tube, the first shaft section (51) is provided with a first flow guide hole (61), the third shaft section (53) is provided with a second flow guide hole (62), the second shaft section (52) is not provided with a flow guide hole, the first filter element (1) is wound on the periphery of the first shaft section (51), and the second filter element (2) is wound on the periphery of the third shaft section (53).
4. The staged filter cartridge of claim 3, wherein:
the central pipe (5) is an injection molding piece; the first filter element (1) and the second filter element (2) are arranged at intervals, a first water stop piece (71) is arranged at the interval position, and the first water stop piece (71) is opposite to the second shaft section (52); and/or the presence of a gas in the gas,
the first shaft segment (51) has an axial length of D1, the second shaft segment (52) has an axial length of D2, the third shaft segment (53) has an axial length of D3, and has a D1: d2 is 1-2.5.
5. The staged filter cartridge of claim 3, wherein:
center tube (5) arrange to be along vertical direction for its central axis, first filter core (1) is located the top of second filter core (2), first shaft part (51) second shaft part (52) with third shaft part (53) is from last to connecting gradually down, the upper end of center tube (5) is the blind end, and the raw water passes through the top of first filter core (1) gets into in first filter core (1).
6. The staged filter cartridge of claim 5, wherein:
the lower extreme of center tube (5) is the open end, forms to pure water outlet (8), the lower extreme of second filter core (2) is provided with second water stop (72), second water stop (72) can seal water, just the lower extreme of second water stop (72) sets up dense water outlet (4).
7. The staged filter cartridge of any one of claims 3-6, wherein:
center tube (5) still include fourth axial segment (54) and fifth axial segment (55), third water conservancy diversion hole (63) have still been seted up on fifth axial segment (55), stage formula filter core still includes the third filter core, first filter core (1) winding is in the periphery of first axial segment (51), process the thick water that second filter core (2) were strained can reach third filter core department filters, process the pure water that the third filter core was strained also can get into the inside of center tube and along the center tube is discharged, process the thick water that the third filter core was strained can pass through thick water export (4) and is discharged.
8. The staged filter cartridge of any one of claims 1-7, wherein:
the utility model discloses a filter element, including support member, first rearmounted filter core (10), first rearmounted filter core (11) of second, the inside of first rearmounted filter core (10) has first cavity, the inside of second rearmounted filter core (12) has second cavity, first rearmounted filter core (10) with first filter core (1) is relative, the pure water that filters out of first filter core (1) can pass through after first rearmounted filter core (10) further filters and enter in the first cavity, the pure water that filters out of second filter core (2) can pass through after second rearmounted filter core (11) further filters and enters in the second cavity, first cavity with second cavity intercommunication.
9. The staged filter cartridge of claim 8, wherein:
the end cover assembly (9) comprises a first end cover (91), a second end cover (92) and a third end cover (93), the first end cover (91) is connected and arranged at one axial end of the first rear filter element (10) opposite to the second rear filter element (11), the second end cover (92) is connected and arranged between the first rear filter element (10) and the second rear filter element (11), and the third end cover (93) is connected and arranged at one axial end of the second rear filter element (11) opposite to the first rear filter element (10).
10. The staged filter cartridge of claim 9, wherein:
first filter core (1) winding is in the periphery of first rearmounted filter core (10), second filter core (2) winding is in the periphery of second rearmounted filter core (11), first filter core (1) with second filter core (2) interval arrangement, and be provided with first water stop (71) at the position at interval, first water stop (71) with second end cover (92) are relative.
11. The staged filter cartridge of claim 9, wherein:
the first rear filter element (10) is positioned above the second rear filter element (11), and the central axes of the first rear filter element (10) and the second rear filter element (11) are superposed and extend along the vertical direction;
the first end cover (91), the second end cover (92) and the third end cover (93) are sequentially arranged at intervals from top to bottom;
the upper end of the first end cover (91) is a closed end, and raw water enters the first filter element (1) through the upper part of the first filter element (1);
the lower extreme of third end cover (93) is the open end, forms into pure water outlet (8), the lower extreme of second filter core (2) is provided with second water stop (72), second water stop (72) can seal water, just second water stop (72) with form between third end cover (93) dense water export (4).
12. The staged filter cartridge of claim 9, wherein:
the first end cover (91), the second end cover (92) and the third end cover (93) are all injection-molded parts; the first rear filter element (10) and the second rear filter element (11) are both made of microporous filter materials, and the pore diameter of each microporous filter material is 0.02-15 mu m.
13. The staged filter cartridge of claim 12, wherein:
the microporous filter includes at least one of activated carbon and ceramic.
14. The staged filter cartridge of claim 9, wherein:
one axial end of the first rear filter element (10) is bonded with the first end cover (91), and the other axial end of the first rear filter element (10) is bonded with the second end cover (92); one axial end of the second rear filter element (11) is bonded with the second end cover (92), and the other axial end of the second rear filter element (11) is bonded with the third end cover (93);
the outer diameter of the first rear filter element (10) is less than or equal to that of the first end cover (91), and the outer diameter of the first rear filter element (10) is less than or equal to that of the second end cover (92);
the outer diameter of the second rear filter element (11) is smaller than or equal to that of the second end cover (92), and the outer diameter of the second rear filter element (11) is smaller than or equal to that of the third end cover (93).
15. A water purifying device is characterized in that: comprising the staged filter cartridge of any of claims 1-14.
CN202210301840.6A 2022-03-25 2022-03-25 Stage type filter element and water purifying device Pending CN114570077A (en)

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CN202210301840.6A CN114570077A (en) 2022-03-25 2022-03-25 Stage type filter element and water purifying device
PCT/CN2022/127395 WO2023179012A1 (en) 2022-03-25 2022-10-25 Stage filter element, stage filter element assembly, water purification device, and water purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN111807538A (en) * 2020-08-06 2020-10-23 珠海格力电器股份有限公司 Water purifier system
WO2021190002A1 (en) * 2020-03-21 2021-09-30 佛山市顺德区美的饮水机制造有限公司 Reverse osmosis membrane element, filter element, and water purifier
CN217593931U (en) * 2022-03-25 2022-10-18 珠海格力电器股份有限公司 Stage type filter element and water purifying device

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