CN110404317A - Composite filter element and water treatment facilities with it - Google Patents
Composite filter element and water treatment facilities with it Download PDFInfo
- Publication number
- CN110404317A CN110404317A CN201810404856.3A CN201810404856A CN110404317A CN 110404317 A CN110404317 A CN 110404317A CN 201810404856 A CN201810404856 A CN 201810404856A CN 110404317 A CN110404317 A CN 110404317A
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- Prior art keywords
- filter
- cylinder
- ontology
- cylinder ontology
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 236
- 239000002131 composite material Substances 0.000 title claims abstract description 94
- 238000001914 filtration Methods 0.000 claims abstract description 180
- 230000004888 barrier function Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 57
- 238000007789 sealing Methods 0.000 claims description 54
- 238000009434 installation Methods 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 80
- 230000000694 effects Effects 0.000 abstract description 19
- 210000003205 muscle Anatomy 0.000 description 36
- 238000000034 method Methods 0.000 description 27
- 230000008569 process Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 19
- 238000012856 packing Methods 0.000 description 19
- 238000012423 maintenance Methods 0.000 description 8
- 238000000746 purification Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 238000001223 reverse osmosis Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 230000035622 drinking Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- 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
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of composite filter element and with its water treatment facilities, composite filter element includes: filter housing, filter cylinder and the barrier assembly for the first overcurrent runner and the second filtering runner to be isolated, filter cylinder and filter housing form the first filtering runner being mutually isolated and the second filtering runner, the first filtration members and the second filtration members are equipped in filter cylinder, second filtration members include at least two-stage filter material, the filter cylinder includes: an ontology, mounting portion, supporting element, is formed with filter chamber in the cylinder ontology；The mounting portion is connected with the cylinder ontology and the mounting portion is adapted to attach to water treatment facilities, and at least one of the mounting portion and described cylinder ontology are connected with the barrier assembly；The supporting element is set to the outer wall of the cylinder ontology, to form water space with the filter housing.Composite filter element according to the present invention, it is simple and compact for structure, it can reduce occupied space, be conducive to rational deployment, and filter effect is good, antileaking.
Description
Technical field
The present invention relates to technical field of water treatment equipment, more particularly, to a kind of composite filter element and at the water with it
Manage equipment.
Background technique
Water treatment facilities in the related technology are provided with multiple filter cores to improve filter effect, and multiple filter cores pass through pipe
Road connection, is easy leak, and filter effect is bad, and pipe-line layout is complicated, and occupied space is big, and structure is not compact, leads to volume
It is larger, it is not easy to dismount.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of symbol
Filter core is closed, the composite filter element is simple and compact for structure, and filter effect is good, occupies little space.
The invention also discloses a kind of water treatment facilities with above-mentioned composite filter element.
Composite filter element according to the present invention, comprising: filter housing, filter cylinder and for the first overcurrent runner and described to be isolated
The barrier assembly of two filtering runners；Installation cavity is defined in the filter housing；The filter cylinder be located in the installation cavity and with it is described
Filter housing forms the first filtering runner being mutually isolated and the second filtering runner, wherein is equipped with and is used in the first filtering runner
First filtration members of fluid in filtering the first filtering runner, the second filtering runner is interior to be equipped with for filtering the second filtering runner
Second filtration members of interior fluid；Wherein, the filter cylinder includes: an ontology, mounting portion, supporting element, is formed in the cylinder ontology
Filter chamber；The mounting portion is connected with the cylinder ontology and the mounting portion is adapted to attach to water treatment facilities, the mounting portion with
At least one of described cylinder ontology is connected with the barrier assembly；The supporting element be set to the cylinder ontology outer wall, with
The filter housing formed water space.
Composite filter element according to the present invention, it is simple and compact for structure, it can reduce occupied space, be conducive to rational deployment, it can be with
Dismounting difficulty is reduced, saves maintenance maintenance cost, and filter effect is good, antileaking.
In addition, composite filter element according to the present invention can also have the following additional technical features:
According to some embodiments of the present invention, the central axis weight of the central axis of the mounting portion and the cylinder ontology
It closes.
According to some embodiments of the present invention, the mounting portion is connected by interconnecting piece with the cylinder ontology, the connection
Portion along the cylinder ontology circumferential direction and radially extend, the outer end of the interconnecting piece connects the cylinder ontology and inner end connects the peace
Dress portion.
According to some embodiments of the present invention, the supporting element is multiple, and multiple supporting elements are along the cylinder ontology
Circumferential direction or axially spaced-apart setting, each supporting element extending radially outwardly along the cylinder ontology.
Optionally, the multiple supporting element includes: multiple supporting ribs, circumferential direction of the multiple supporting rib along the cylinder ontology
It is spaced apart the outer peripheral surface set on the cylinder ontology, each supporting rib is axially extending along the cylinder ontology.
Optionally, multiple supporting ribs are arranged along the circumferential uniform intervals of the cylinder ontology.
Optionally, each supporting rib extends to the axial another of the cylinder ontology from an axial end face for the cylinder ontology
One end face.
According to some embodiments of the present invention, the multiple supporting element includes: at least one set of supporting table group, is propped up described in every group
Supportting platform group includes multiple sub- supporting tables, and multiple sub- supporting tables in supporting table group described in every group are set to the outer of the cylinder ontology
Circumferential surface and along the circumferential array of the cylinder ontology, circumferentially extending of each sub- supporting table along the cylinder ontology.
Optionally, the supporting table group is multiple groups, and supporting table group described in multiple groups is set along the axially spaced-apart of the cylinder ontology
It sets.
Optionally, the cross section of each sub- supporting table is rectangle.
According to some embodiments of the present invention, the multiple supporting element includes: multiple supporting ribs, and multiple supporting ribs are set
Outer peripheral surface in the cylinder ontology and being provided at circumferentially spaced along the cylinder ontology, each supporting rib is along the cylinder ontology
It is axially extending；Multiple sub- supporting tables, each sub- supporting table are set to the outer peripheral surface of the cylinder ontology and along the cylinder ontologies
Circumferentially extending, each sub- supporting table are spaced apart between two adjacent supporting ribs and with the supporting rib.
Advantageously, in the cross section of the cylinder ontology, the outer edge of multiple supporting elements is located in same imaginary circle.
Optionally, each supporting element is more than or equal to 0.5mm in the extended height in the radial direction of the cylinder ontology.
According to some embodiments of the present invention, one end far from the cylinder ontology of the mounting portion is equipped with close suitable for accommodating
The sealing tank of sealing, the sealing tank are set to the outer peripheral surface of the mounting portion and are formed along the circumferentially extending of the mounting portion
Closed-loop shaped.
Optionally, the sealing tank is multiple and axially spaced setting.
According to some embodiments of the present invention, the barrier assembly includes top cover, and the top cover is pivotly set to described
In filter cylinder, sliding slot is equipped in the top cover, the filter cylinder is equipped with the auxiliary section connecting with the sliding slot, the auxiliary section edge
The circumferential direction of the filter cylinder is slidably engaged in the sliding slot.
Optionally, the auxiliary section is set to the mounting portion and the neighbouring cylinder ontology, and the auxiliary section is along the cylinder sheet
The circumferentially extending of body.
Further, the auxiliary section is equipped at least one along the technique axially through the auxiliary section of the filter cylinder
Hole.
Optionally, the auxiliary section be along the cylinder ontology circumferentially-spaced distribution it is multiple, and the sliding slot for institute
It is multiple correspondingly to state auxiliary section.
According to some embodiments of the present invention, the moulding that first filter cylinder is integrally formed.
Water treatment facilities according to the present invention, including plate of water route and filter core, the plate of water route are equipped with filter core connecting seat；Institute
State filter core be it is above-mentioned compound described, the composite filter element is removably attachable to the filter core connecting seat.
Water treatment facilities according to the present invention can promote filter effect, reduce body by the way that above-mentioned composite filter element is arranged
Product, meets more installation requirements.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the perspective view of element kit according to an embodiment of the present invention；
Fig. 2 is the explosive view of element kit according to an embodiment of the present invention；
Fig. 3 is the main view of element kit according to an embodiment of the present invention；
Fig. 4 is the cross-sectional view of element kit according to an embodiment of the invention；
Fig. 5 is the enlarged drawing in the portion A that Fig. 4 centre circle shows；
The cross-sectional view of Fig. 6 composite filter element according to an embodiment of the invention；
Fig. 7 is the enlarged drawing for the B that Fig. 6 centre circle shows；
Fig. 8 is the enlarged drawing for the C that Fig. 6 centre circle shows；
Fig. 9 is the enlarged drawing for the D that Fig. 6 centre circle shows；
Figure 10 is the perspective view of plate of water route according to an embodiment of the present invention；
Figure 11 is the side view of the plate of water route in Figure 10；
Figure 12 is the bottom view of the plate of water route in Figure 10；
Figure 13 is the cross-sectional view of the plate of water route in Figure 10；
Figure 14 is the perspective view of filter housing in composite filter element according to an embodiment of the present invention；
Figure 15 is the bottom view of the filter housing in Figure 14；
Figure 16 is the side view of the filter housing in Figure 14；
Figure 17 is the cross-sectional view of the E-E line along Figure 16；
Figure 18 is the enlarged drawing in the portion F that Figure 17 centre circle shows；
Figure 19 is the perspective view of the first filter cylinder in composite filter element according to an embodiment of the present invention；
Figure 20 is the top view of the first filter cylinder in Figure 19；
Figure 21 is the side view of the first filter cylinder in composite filter element；
Figure 22 is the cross-sectional view of the G-G line along Figure 21；
Figure 23 is the perspective view of top cover in composite filter element according to an embodiment of the present invention；
Figure 24 is the top view of the top cover in Figure 23；
Figure 25 is the side view of the top cover in Figure 23；
Figure 26 is the perspective view of the second filter cylinder in composite filter element according to some embodiments of the invention；
Figure 27 is the side view of the second filter cylinder in Figure 26；
Figure 28 is the top view of the second filter core in Figure 26；
The cross-sectional view of Figure 29 H-H line extremely along Figure 28；
Figure 30 is the enlarged drawing in the portion I that Figure 29 centre circle shows；
Figure 31 is the cross-sectional view of the second filter cylinder in the composite filter element of other embodiments according to the present invention；
Figure 32 is the perspective view of bottom cover in composite filter element according to an embodiment of the present invention；
Figure 33 is the side view of the bottom cover in Figure 32；
Figure 34 is the top view of the bottom cover in Figure 32；
Figure 35 is the cross-sectional view of the J-J line along Figure 34；
Figure 36 is the perspective view of the middle partition of composite filter element according to an embodiment of the present invention；
Figure 37 is the side view of the middle partition in Figure 36；
Figure 38 is the top view of the middle partition of composite filter element；
Figure 39 is the cross-sectional view of the K-K line along Figure 38；
Figure 40 is the perspective view of the central tube of composite filter element according to an embodiment of the present invention；
Figure 41 is the side view of the central tube in Figure 40；
Figure 42 is the top view of the central tube of composite filter element；
Figure 43 is the cross-sectional view of the L-L line along Figure 42；
Figure 44 is the perspective view of the central tube in composite filter element according to some embodiments of the invention；
Figure 45 is the cross-sectional view of the central tube in Figure 44；
Figure 46 is the perspective view of the central tube in composite filter element according to some embodiments of the invention；
Figure 47 is the cross-sectional view of the central tube in Figure 46；
Figure 48 is the perspective view of the central tube in composite filter element according to some embodiments of the invention；
Figure 49 is the cross-sectional view of the central tube in Figure 48；
Figure 50 is the perspective view of the central tube in composite filter element according to some embodiments of the invention；
Figure 51 is the cross-sectional view of the central tube in Figure 50；
Figure 52 is the perspective view of the first filter cylinder of composite filter element according to an embodiment of the present invention；
Figure 53 is the main view of the first filter cylinder in Figure 52；
Figure 54 is the top view of the first filter cylinder in Figure 52；
Figure 55 is the perspective view of the first filter cylinder of composite filter element according to an embodiment of the present invention；
Figure 56 is the main view of the first filter cylinder in Figure 55；
Figure 57 is the top view of the first filter cylinder in Figure 55；
Figure 58 is the perspective view of filter assemblies according to some embodiments of the invention；
Figure 59 is the perspective view side view of filter assemblies according to some embodiments of the invention；
Figure 60 is the cross-sectional view of the filter assemblies in Figure 59；
Figure 61 is the explosive view of the filter assemblies in Figure 59；
Figure 62 is the cross-sectional view of the part-structure of composite filter element according to an embodiment of the present invention, wherein the first filter cylinder is in
It is integrally formed every disk；
Figure 63 is the cross-sectional view of composite filter element according to some embodiments of the invention, wherein the first filter cylinder and middle separate disk one
It is body formed；
Figure 64 is the cross-sectional view of the top cover of Figure 63, wherein the first filter cylinder is mating at arrow；
Figure 65 is the cross-sectional view of part-structure in composite filter element according to some embodiments of the invention, wherein central tube with
Middle separate disk is integrally formed；
Figure 66 is the cross-sectional view of part-structure in composite filter element according to some embodiments of the invention, wherein central tube with
Top cover is integrally formed.
Appended drawing reference:
1000: element kit；
100: composite filter element；；200: the second filter cores；
1: filter housing；10: installation cavity；10a: water space is crossed；10a1: the first crosses water space；10a2: the second crosses water space；
11: shell ontology；111: body；112: shell bottom；12: dowel；121: the first dowels；122: the second dowels；
2: filter cylinder:
21: the first filter cylinders；210: the first filter chambers；211: cylinder ontology；212: interconnecting piece；213: mounting portion；214: supporting element；
215；Auxiliary section；2151: fabrication hole；
2131: sealing tank；214a: supporting rib；214b supporting table group；2141: sub- supporting table；
22: the second filter cylinders；220: the second filter chambers；221: the first cylinders；2210: the first wound packages chambers；222: the second cylinders；
2220: the second wound packages chambers；223: connector drum；2230: connecting cylinder is behave affectedly；224: rib；2241: muscle ontology；2242: muscle connection
Portion；
3: middle separate disk；30: every disk water hole；31: every disk ontology；32: every disk interconnecting piece；321: sealed groove；33: annular
Sealing element；311: locating support table；312: positioning bar；
4: the first filtration members；40: filtration channel；
5: the second filtration members；51: first order filter material；52: second level filter material；53: isolation board；
510: the first filter material water channels；520: the second filter material water channels；
6: central tube；60a: the first pipe water passage；60b: the second pipe water passage；
61: tube body；611: holding tank；62: baffle；621: gear ontology；622: guide part；
7: top cover；70: top cover crosses water flow passage 70；71: crossing water pipe；72: sliding slot；73: limiting section；74: top cover support muscle；
721: the first extended segments；7211: support level；722: the second extended segments；
8: bottom cover；80: bottom cover water hole；81: bottom cover ontology；82: lid interconnecting piece；
821: first connecting portion；822: second connecting portion；823: installation groove；
300: plate of water route；301: plate ontology；302: water channel；3011: the first attachment bases；3012: the second attachment bases；3013:
Ring packing muscle；3011a: the first water hole；3012a: the second water hole.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " thickness ", "upper",
"lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", " radial direction ", " week
To " etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, define " first ", the feature of " second " can be bright
Show or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple " contain
Justice is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Element kit 1000 according to an embodiment of the invention is described in detail with reference to the accompanying drawing, the element kit 1000
It can be used for the water treatment facilities such as water purifier, water dispenser, purifying drinking appliance, but not limited to this.In the application, for ease of description and manage
Solution, up and down direction, left and right directions and front-rear direction are carried out by taking the up and down direction of diagram, left and right directions and front-rear direction as an example respectively
Explanation.
As Figure 1-Figure 5, element kit 1000 according to an embodiment of the invention is filtered including plate of water route 300, first
Core (for example, composite filter element 100 of diagram) and the second filter core 200, the first filter core and the second filter core 200 can be that the water flowed through carries out
Filtration treatment promotes water quality to export filtered water purification.
Plate of water route 300 is equipped with the first attachment base 3011 and the second attachment base 3012, and the first filter core is removably mounted to the
A connecting seat 3011, the second filter core 200 is removably installed in the second attachment base 3012, simple and compact for structure, and can be square
Just it will be replaced and be repaired to being removed on filter core and the second filter core 200 by water plate 300, dismounting difficulty is low, maintenance maintenance
It is at low cost.
At least one of first filter core and the second filter core 200 are composite filter element, and composite filter element can be according to the present invention
The composite filter element 100 of embodiment.So-called composite filter element makes to refer to the filter structure for being integrated with multiple common filter cores, may be implemented more
The filter core of kind filtering function.That is, the first filter core can be the composite filter element 100 for being integrated with multiple common filter cores, alternatively,
Second filter core can be the composite filter element 100 for being integrated with multiple common filter cores, then alternatively, the first filter core and the second filter core 200 can
It is respectively set to be integrated with the composite filter element 100 of multiple common filter cores simultaneously.
Thus, it is possible to extend the filtering function of element kit 1000, the filtration yield of filter assemblies is increased, improves filtering
Efficiency, and it is compact-sized, it occupies little space, is conducive to space layout, can satisfy more installation requirements.
The plate of water route 300 of element kit 1000 is described first below.
As shown in Figure 10-Figure 13, the plate of water route 300 according to an embodiment of the present invention for element kit 1000, including one
Body formed plate ontology 301, plate ontology 301 are equipped with the first attachment base 3011 for being adapted to the first filter core and are adapted to the
Second attachment base 3012 of two filter cores 200.
First attachment base 3011 is spaced apart with the second attachment base 3012, to reserve the peace of the first filter core and the second filter core 200
Dress allows bit space, avoids interfering.Second attachment base 3012 and the second attachment base 3012 are set to the thickness direction of plate ontology 301
The same side, the first filter core and the second filter core 200 can be mounted on to the same side of plate ontology 301.For example, in the example of diagram
In, plate of water route 300 is horizontally disposed, and the first attachment base 3011 and the second attachment base 3012 are set to the downside of plate ontology 301, so as to
It is compact-sized the first filter core and the second filter core 200 to be mounted on to the downside of plate ontology 301 side by side, it is conveniently replaceable the first filter core
With the second filter core 200, and be conducive to reduce element kit 1000 height dimension.
Plate ontology 301 has at least three water channels 302, each water channel 302 has the mouth of a river for being adapted to pipeline, at least
Three water channels 302 are connected with one in the first filter core and the second filter core 200 respectively, are used for the first filter core and the second filter core
200 inputs water to be filtered, and will be exported through the first filter core and the filtered water purification of the second filter core 200.Wherein, at least three water
Road 302 extends towards the same side of plate of water route 300, i.e., at least three water channels 302 are set side by side.External pipeline can be with as a result,
Multiple water channels 302 are connected in the same side of plate ontology 301, it is easy to connect, it is high-efficient, and towards the same side of plate of water route 300
The water channel 302 of extension can simplify structure, optimize appearance.
For example, there are four water channel 302, each water channel 302 has the tool of plate ontology 301 in the example of sum as shown in Figure 10
The mouth of a river, the left side that four water channels 302 are respectively facing plate of water route 300 extend.Certainly, water channel 302 can with other quantity, for example,
Five, six etc., at least three water channels 302 may include raw water road, water purification road and waste way etc., it should be noted that water channel
302 quantity is related with the type and connection type of the first filter core and the second filter core 200, this is for those skilled in the art
For will be understood by, details are not described herein.
According to some embodiments of the present invention, as shown in Figure 10-Figure 13, the first attachment base 3011 and the second attachment base 3012
It can be arranged along the length direction interval of plate ontology 301, the first filter core is composite filter element 100, and at least three water channels 302 can edge respectively
The length direction of plate ontology 301 extends, and one end of the close composite filter element 100 of each water channel 302 is equipped with the mouth of a river.Example
Such as, the length direction of plate ontology 301 is the left and right directions of diagram, and the first attachment base 3011 and the second attachment base 3012 are along right and left
It is arranged to interval, the first attachment base 3011 is located at 3012 left side of the second attachment base, and composite filter element 100 is connected to the first attachment base
3011 and it is located at the left side of the second filter core 200, at least three water channels 302 are respectively facing composite filter element 100 to a left side for plate ontology 301
Side extends, and the left end of each water channel 302 is equipped with the mouth of a river, and external pipeline is connected to the mouth of a river respectively.In this way, the mouth of a river can be located at
The same side of plate of water route 300 mouth of a river can be arranged adjacent to composite filter element 100, convenient to connect with external road, and plate ontology
301 internal water channel 302 is simple, and structure design is easier.
In some embodiments, at least three water channels 302 can be arranged along the width direction of plate ontology 301, shown in Figure 10
Example in, water channel 302 arranges along the longitudinal direction, compact-sized, and convenient for connection exterior line, aesthetics is more preferably.
Optionally, the diameter D at each mouth of a river can satisfy: 5mm≤D≤30mm, that is to say, that the diameter D at each mouth of a river
The arbitrary value between 5mm-30mm can be chosen.For example, the diameter at each mouth of a river can be with 5mm, 10mm, 25m or 30mm etc..It is multiple
The diameter at the mouth of a river can be identical, to connect the exterior line of same diameter, alternatively, the diameter at multiple mouths of a river can be different, with suitable
Answer the Inlet and outlet water demand at the different mouths of a river.
It can lead between first filter core and the first attachment base 3011 and between the second filter core 200 and the second attachment base 3012
The realization of the structures such as screw thread or buckle is crossed to be detachably connected.
For example, in some embodiments, can be equipped with as shown in Figure 10, Figure 11 and Figure 13, on plate ontology 301 first annular
Flange and with spaced second annular flange of first annular flange, first annular flange and the second annular flange are respectively formed
For the first attachment base 3011 and the second attachment base 3012, the first filter core and the second filter core 200 are respectively at first annular flange and
Second ring flange is connected.
Optionally, the first outer spiral shell for being suitable for being threadedly coupled with the first filter core can be equipped on the outer peripheral surface of first annular flange
Line, the outer peripheral surface of the second annular flange are equipped with the second external screw thread for being suitable for being threadedly coupled with the second filter core 200.As a result, first
Filter core, which is threadedly engaged, is connected to first annular flange, and the second filter core 200 is connected to the second annular flange by being threadedly engaged.
In further embodiments, plate ontology 301 be equipped with first annular groove (not shown) and with it is first annular
The spaced second annular groove (not shown) of groove, first annular groove and second annular groove are respectively formed as
A connecting seat 3011 and the second attachment base 3012, first annular groove are connected with the first filter core, second annular groove and the second filter
Core 200 is connected.
Optionally, the inner surface of first annular groove can be equipped with the first internal screw thread for being suitable for being threadedly coupled with the first filter core,
The inner surface of second annular groove can be equipped with the second internal screw thread for being suitable for being threadedly coupled with the second filter core 200.First filter core as a result,
It is threadedly engaged in first annular groove, the second filter core 200 is threadedly connected to second annular groove.
The structure of plate of water route 300 is simple as a result, facilitates processing, and the first filter core and the second filter core 200 are matched by screw thread
Conjunction is connected to plate ontology 301, convenient for disassembly and assembly laborsaving, is conducive to control maintenance maintenance cost.
According to some embodiments of the present invention, as shown in Figure 12 and Figure 13, the first attachment base 3011 and the second attachment base
At least two ring packing muscle 3013, the ring packing muscle 3013 in the first attachment base 3011 can be equipped in each of 3012
Suitable for being tightly connected the first filter core, the ring packing muscle 3013 in the second attachment base 3012 is suitable for being tightly connected the second filter core 200,
To guarantee the mutual non-series-water of each water channel 302.In first attachment base 3011, it is equipped at least between two adjacent ring packing muscle 3013
One the first water hole 3011a inputs water to be filtered to the first filter core to be connected to water channel 302 and the first filter core；Second connection
In seat 3012, at least one second water hole 3012a is equipped between two adjacent ring packing muscle 3013, to be connected to water channel
302 and second filter core 200, water to be filtered is inputted to the second filter core 200, and export and complete filtered water purification.
Optionally, at least two ring packing muscle, 3013 arranged concentric in the first attachment base 3011, the second attachment base
At least two ring packing muscle, 3013 arranged concentric in 3012.It is compact-sized as a result, it is rationally distributed, and can optimize close
Sealing property improves reliability.
For example, setting the ring packing there are three arranged concentric in the first attachment base 3011 in example as shown in fig. 13 that
Muscle 3013, wherein it is located at an innermost ring packing muscle 3013 around a first water hole 3011a, adjacent two
A first water hole 3011a, and a ring packing muscle 3013 on the outermost side are equipped between ring packing muscle 3013
A first water hole 3011a is equipped between the inner wall of the first attachment base 3011；Similarly, it is set in the second attachment base 3012
There are three ring packing muscle 3013, are located at an innermost ring packing muscle 3013 around a second water hole 3012a, phase
A second water hole 3012a is equipped between two adjacent ring packing muscle 3013, and an annular on the outermost side is close
It seals and is equipped with a second water hole 3012a between muscle 3013 and the inner wall of the second attachment base 3012.
In short, the plate of water route 300 for element kit 1000 of root drama inventive embodiments, simple and compact for structure, beauty
The property seen is good, and occupies little space, and is conducive to rational deployment, convenient for disassembly and assembly laborsaving, can satisfy more installation requirements.
The structure of composite filter element 100 in element kit 1000 is described in detail below.
In conjunction with shown in Fig. 4 and Fig. 6, composite filter element 100 according to an embodiment of the present invention includes: filter housing 1 and filter cylinder 2, filter housing 1
Installation cavity 10 is inside defined, filter cylinder 2 is located in installation cavity 10, and filter cylinder 2 can form the first mutually isolated filtering with filter housing 1
Runner and the second filtering runner, wherein be equipped in filter cylinder 2 for filtering 4 and of the first filtration members to circulate in the first filtering runner
For filtering the second filtration members 5 of fluid in the second filtering runner, the second filtration members 5 include at least two-stage filter material.
That is, being equipped with mutually disconnected first filtering runner and the second filtering runner, the first mistake in composite filter element 100
Fluid in filter runner can be filtered by the first filtration members 4, and the fluid in the second filtering runner can pass through the second mistake
Filter part 5 is filtered, and the filter process in the first filtering runner and the filter process in the second filtering runner are mutually indepedent, mutually not
It influences.Wherein, the second filtration members 5 include the filter material of two-stage or two-stage or more.
For example, second filtration members 5 include first order filter material 51 and second level filter material in Fig. 4 and example shown in fig. 6
52, first order filter material 51 and second level filter material 52 are arranged along the flow direction of water flow, with to the fluid in the second filtering runner into
Row double-filtration.Certainly, the invention is not limited thereto, and the second filtration members 5 may include the filter material of three-level or three-level or more, for example,
Level Four, Pyatyi etc..
The first filtering runner being mutually isolated and the second filtering runner are formed using filter cylinder 2 and filter housing 1, it can be in composite filter
Mutually independent two filter process are carried out simultaneously in core 100, moreover, setting the second filtration members 5 to include at least two-stage filter
Material, is not only simple in structure compact, reduces occupied space, and can promote filter effect.
In one embodiment as Figure 1-Figure 5, composite filter element 100 include: plate of water route 300, filter housing 1, filter cylinder 2, in
Every disk 3, the first filtration members 4, the second filtration members 5 and central tube 6.
Plate of water route 300 is equipped with filter core connecting seat (for example, first attachment base 3011 of diagram), and filter housing 1 is connected to installation
Seat, to realize fixation, defines installation cavity 10, filter cylinder 2, the first filtration members 4, second filtration members 5 etc. may be mounted in filter housing 1
In installation cavity 10.
Filter cylinder 2 is installed in installation cavity 10, and filter chamber is defined in filter cylinder 2, outside wall surface and the filter housing 1 of filter cylinder 2
Inner wall is spaced apart and formed water space 10a.Middle separate disk 3 is located in filter cylinder 2, and middle separate disk 3 is connected with the sealing of filter cylinder 2, with
Filter chamber is divided into the first filter chamber 210 of neighbouring plate of water route 300 and far from the second filter chamber 220 of plate of water route 300, in conjunction with Fig. 4, is schemed
Shown in 5 and Fig. 6, middle separate disk 3 be equipped with connection the first filter chamber 210 and the second filter chamber 220 every disk water hole 30.
As shown in Figure 4 and Figure 5, the first filtration members 4 are mounted in the first filter chamber 210, and are formed in the first filtration members 4
Filtration channel 40.Second filtration members 5 are mounted in the second filter chamber 220.First filtration members 4 and the second filtration members 5 are respectively to flow through
Water be filtered processing, retain impurity, microorganism and bacterium therein, go water removal in peculiar smell, output promoted water quality after
Water purification.
Central tube 6 may be provided in the filtration channel 40 in the first filtration members 4, and central tube 6 is connected to middle separate disk 3, in
It is formed with the first pipe water passage 60a in heart pipe 6, the second pipe water passage is formed between central tube 6 and the first filtration members 4
60b。
Wherein, water space 10a is crossed, the second filter chamber 220 crosses water flow passage channel 60a with the first pipe and is connected to form the first filtering stream
Road, the first filter chamber 210 are connected to form the second filtering runner with the second pipe water passage 60b, the first filtering runner and the second filtering
Runner is mutually isolated, that is to say, that the first filtering runner and the second filtering runner are not connected to, independently of each other.
It is understood that the first filtration members 4 are located in the first filtering runner, the water for flowing through the first filtering runner is carried out
Filtration treatment, the second filtration members 5 are located in the second filtering runner, are filtered to the water for flowing through the second filtering runner, two mistakes
It filters Cheng Duli to carry out, be independent of each other.
In this way, the filter process that the filter process and second in the first filtering runner filter in runner can carry out simultaneously,
When the first filtration members 4 and the second filtration members 5 are the filtration members of type of the same race, it can effectively increase filtration yield, promote composite filter
The filter efficiency of core 100；And when the first filtration members 4 and the second filtration members 5 are different types of filtration members, the first filtering runner
With the filter process that can carry out different filtering functions in the second filtering runner simultaneously.
User can be selected on demand through one or two of the first filtering runner and the second filtering runner pair as a result,
Water is filtered, and suitability is good, can meet a variety of different demands, and integrally disposed so that simple and compact for structure, occupied space
It is small, it is conducive to space layout.
Figure 14-Figure 18 is combined to describe the filter housing 1 of composite filter element 100 according to an embodiment of the present invention first below.
Filter housing 1 is removably attachable to filter core connecting seat, and in the example shown in the series of figures, filter housing 1 is connected to the first attachment base
3011, the inner peripheral surface of filter housing 1 is equipped with internal screw thread, and filter core connecting seat is equipped with the external screw thread of adaptation.In this way, working as composite filter element 100
After the interior filter material service life expires or damages, filter housing 1 can be removed, internal filter material is replaced, filter housing 1 can retain again sharp
With environmental protection and saving can effectively reduce cost.
According to some embodiments of the present invention, the filter housing 1 of composite filter element 100 includes shell ontology 11 and dowel 12, wherein
The open installation cavity 10 in top is defined in shell ontology 11, as exemplified in figs, shell ontology 11 includes body 111 and is located at
The shell bottom 112 of 111 bottom of body, dowel 12 can integrally be set to shell bottom 112, and dowel 12 can be connected with body 111.
The intensity of filter housing 1 can be effectively improved as a result, reduced the probability that filter housing 1 damages, prolonged the service life.
According to some embodiments of the present invention, as shown in Figure 14-Figure 18, dowel 12 may include: the first dowel
121, the first dowel 121 can be set to the side surface away from body 111 of shell, and the first dowel 121 can be along shell bottom
112 radially extend, i.e. outer surface that the first dowel 121 is located at shell bottom 112, the first dowel 121 radially with body
111 are connected.So as to optimize the intensity at shell bottom 112 and shell bottom 112 and 111 junction of body, in addition, the first dowel
121 setting dismounts more convenient laborsaving convenient for carrying out gripping operation to filter housing 1.
In some embodiments, as shown in figure 15, the both ends of the first dowel 121 can be respectively with body 111 in radial direction
Upper opposite two sidewalls are connected.In other words, the first dowel 121 radially connects the two sidewalls of body 111, i.e. the first dowel
121 are located at the diametrically opposite two sides that on the bottom surface at shell bottom 112 and both ends are separately connected body 111, and structure is simple, and connection can
It leans on.
In further embodiments, the first dowel 121 is the multiple of the central axis arrangement around shell bottom 112.For example,
In the example depicted in fig. 15, the first dowel 121 is three, three radially spaced settings of the first dowel 121, so as to
To optimize bonding strength, reliability is improved.
Optionally, one end of multiple first dowels 121 is connected, and the other end and shell of multiple first dowels 121
Body 111 is connected, i.e. the first dowel 121 is set to shell bottom 112 and radially connects body 111.
Advantageously, multiple first dowels 121 can be evenly spaced on along the circumferential direction at shell bottom 112.As a result, filter housing 1 can
It is further promoted by property, and the shape of filter housing 1 is more neat and artistic.
As exemplified in figs, body 111 and the round and smooth connection in shell bottom 112, and the first dowel 121 and the circle of body 111
Slip is concentrated so as to reduce stress, and bonding strength is further promoted.
According to some embodiments of the present invention, dowel 12 includes: at least two second dowels 122, and at least two
Two dowels 122 can be spaced the side surface towards body 111 for being provided with shell bottom 112, and at least two second connections
Muscle 122 is radially extended along shell bottom 112.That is, at least two second dowels 122 are set to the inner surface at shell bottom 112, and
And at least two second radially extending along shell bottom 112 of dowel 122, the setting of at least two dowels 12 interval.
In this way, filter housing 1 can be avoided to damage from the intensity inside stiffened shell bottom 112, extend the service life of filter housing 1.Separately
Outside, spaced second dowel 122 can be conducive between forming water between the second dowel 122, shell bottom 112 and filter cylinder 2
Gap 10a, conducive to the arrangement of runner.
Optionally, as shown in figure 18, each second dowel 122 can be formed as L shape, and filter cylinder 2 can be supported on L-shaped
On second dowel 122, the outer peripheral surface of filter cylinder 2 and bottom surface are only against on the second dowel 122 respectively, and stability is good, can be to prevent
Only filter cylinder 2 misplaces, and sealing reliability is also promoted.
Advantageously, the second dowel 122 is multiple, and multiple second dowels 122 uniformly divide along the circumferential of shell bottom 112
Cloth, so as to further increase stability and reliability.
As shown in Figure 17 and Figure 18, the inner end interval setting of multiple second dowels 122, can reduce water space 10a
Interior mistake water resistance optimizes topology layout.
Optionally, the moulding that filter housing 1 can be integrally formed.In other words, body 111, shell bottom 112 and dowel 12
It can be with integrated injection molding.It is easy to process as a result, it is convenient to omit assembly process promotes assembly precision, is conducive to control cost.
Filter cylinder 2 is installed in the installation cavity 10 of filter housing 1, filter chamber, the outside wall surface and filter housing 1 of filter cylinder 2 are defined in filter cylinder 2
Inner wall be spaced apart and formed water space 10a, be equipped with middle separate disk 3 in filter cylinder 2, middle separate disk 3 filter chamber is divided into face it is neighbouring
Second filter chamber 220 of the first filter chamber 210 of plate of water route 300 and separate plate of water route 300.
In of the invention one a little embodiments, as shown in Figure 4 and Figure 6, filter cylinder 2 includes the first filter cylinder 21 and the second filter cylinder
22.Wherein, the first filter cylinder 21 is located in installation cavity 10, and the first filter cylinder 21 is installed on filter core connecting seat (that is, the first of diagram
Attachment base 3011), the first filter chamber 210 is defined in the first filter cylinder 21, the first filtration members 4 are mounted in the first filter chamber 210, and first
The outer peripheral surface of filter cylinder 21 is spaced apart to form the first mistake water space 10a1 with the inner peripheral surface of filter housing 1, and the second filter cylinder 22 is located at installation cavity
In 10, optionally, the central axis of the first filter cylinder 21 is overlapped with the central axis of the second filter cylinder 22, i.e. the second filter cylinder 22 is located at the
Axial one end (for example, lower end of diagram) of one filter cylinder 21, structure is more compact.The second filter chamber is defined in second filter cylinder 22
220, the second filtration members 5 are mounted in the second filter chamber 220, the outside wall surface of the second filter chamber 220 and the inner wall interval open form of filter housing 1
Water space 10a2 is crossed at be connected to the first water space 10a1 excessively second, first, which crosses water space 10a1 and second, crosses water space 10a2
Collectively form above-mentioned water space 10a excessively.
It is described in detail below with reference to structure of Figure 19-Figure 22 to the first filter cylinder 21.
According to some embodiments of the present invention, as shown in Figure 19 and Figure 21, the first filter cylinder 21 includes: an ontology 211, installation
Portion 213 and multiple supporting elements 214.
It could be formed with the first filter chamber 210 in cylinder ontology 211, mounting portion 213 can be connected to cylinder sheet by interconnecting piece 212
Axial one end of body 211, and mounting portion 213 is installed on filter core connecting seat (that is, first attachment base 3011 of diagram), for example,
Mounting portion 213 can protrude into filter core connecting seat and ring packing muscle 3013 cooperates, and mounting portion 213 is connected to the first filter chamber 210, with
Water flow is allowed to flow in mounting portion 213 and cylinder ontology 211.
As shown in Figure 19-21, multiple supporting elements 214 can be set to the outer peripheral surface of cylinder ontology 211, and multiple supporting elements
214 being provided at circumferentially spaced along cylinder ontology 211, each supporting element 214 can extending radially outwardly along cylinder ontology 211.Also
It is to say, the outer peripheral surface of cylinder ontology 211 is equipped with multiple supporting elements 214 of circumferentially spaced setting, and multiple supporting elements 214 are remote respectively
Central axis from cylinder ontology 211 extends.
Multiple supporting elements 214 can only be butted on the inner peripheral surface of filter housing 1, so as in the inner peripheral surface of filter housing 1, cylinder ontology
First is formed between 211 outer peripheral surface and two adjacent supporting elements 214 and crosses water space 10a1, and the first filter cylinder not only can be improved
21 intensity avoids the first filter cylinder 21 from damaging, and is conducive to guarantee the concentricity of the first filter cylinder 21 and filter housing 1, crosses water fluency
It is good, seal reliable and stable, antileaking.
Optionally, as shown in figure 21, the central axis of mounting portion 213 can be overlapped with the central axis of cylinder ontology 211, i.e.,
Mounting portion 213 is set to axial one end of cylinder ontology 211.
As shown in figure 21 and figure, interconnecting piece 212 can along cylinder ontology 211 circumferential direction and radially extend, interconnecting piece 212 it is outer
End can connecting cylinder ontology 211, and the inner end of interconnecting piece 212 can connect mounting portion 213.It will thus, it is possible to pass through interconnecting piece 212
Logical ontology is connected with mounting portion 213, simple and compact for structure.
In some embodiments, multiple supporting elements 214 may include: multiple supporting rib 214a, and multiple supporting rib 214a can edge
The circumferentially-spaced outer peripheral surface for being opened in an ontology 211 of cylinder ontology 211, each supporting rib 214a can be along the axial direction of cylinder ontology 211
Extend.Thus, it is possible to constitute between the outer peripheral surface of cylinder ontology 211 and the inner peripheral surface of filter housing 1 along the axially extending of cylinder ontology 211
First cross water space 10a1, good reliability can effectively improve the concentricity of the first filter cylinder 21 with filter housing 1.
Optionally, as shown in figure 20, multiple supporting rib 214a can be arranged along the circumferential uniform intervals of cylinder ontology 211, thus
First water space 10a1 excessively can be uniformly distributed in the outer peripheral surface of an ontology 211, water resistance excessively is small, and filter effect is good, and
And the shape of the first filter cylinder 21 can be made neat and artistic, improve intensity.
Optionally, as shown in Figure 19 and Figure 21, each supporting rib 214a can extend from an axial end face for cylinder ontology 211
To the axial other end of cylinder ontology 211.In the example shown in the series of figures, the central axis of the first filter cylinder 21 orients along the vertical direction,
Each supporting rib 214a extends to the upper surface of an ontology 211 from the lower end surface of cylinder ontology 211.Structure is simple, easy to process, benefit
In control cost.
In other embodiments, multiple supporting elements 214 may include: at least one set of supporting table group 214b, every group of supporting table
Group 214b includes multiple sub- supporting tables 2141, and multiple sub- supporting tables 2141 in every group of supporting table group 214b are set to cylinder ontology 211
Outer peripheral surface and along the circumferential array of cylinder ontology 211, every sub- supporting table 2141 can be along the circumferentially extending of cylinder ontology 211.For example,
In example as shown in figure 21, multiple supporting elements 214 include that one group of supporting table group 214b, one group of supporting table group 214b include six
A sub- supporting table 2141, six sub- supporting tables 2141 are located on the outer peripheral surface of an ontology 211, and along the circumferential direction of cylinder ontology 211
Arrangement, circumferentially extending of the every sub- supporting table 2141 along cylinder ontology 211.The outer end of every sub- supporting table 2141 can stop as a result,
Inner peripheral surface to filter housing 1 passes through two adjacent sub- supporting tables between the outer peripheral surface of cylinder ontology 211 and the inner peripheral surface of filter housing 1
What 2141 formation can be run water through crosses water space 10a, more well water.
Optionally, supporting table group 214b can be multiple groups, and multiple groups supporting table group 214b can be along the axial direction of cylinder ontology 211
Interval setting, stops the inner peripheral surface for supporting filter housing 1 so as to multiple positions in the axial direction of cylinder ontology 211, and then can be into one
Step guarantees the concentricity of cylinder ontology 211 and filter housing 1, and Assembly stability and sealing reliability are more preferably.
Optionally, the cross section of every sub- supporting table 2141 is rectangle, and intensity is high, and convenient processing and manufacture, is conducive to control
This is made.
In further embodiments, as shown in Figure 19-21, multiple supporting elements 214 may include: multiple supporting rib 214a
With multiple sub- supporting tables 2141.Wherein, multiple supporting rib 214a were set to the outer peripheral surface of cylinder ontology 211 and along the weeks of cylinder ontology 211
It is arranged to interval, each supporting rib 214a can be set to cylinder ontology along the axially extending of cylinder ontology 211, every sub- supporting table 2141
211 outer peripheral surface, and every sub- supporting table 2141, along the circumferentially extending of cylinder ontology 211, every sub- supporting table 2141 can be located at
Between two adjacent supporting rib 214a, and every sub- supporting table 2141 is spaced apart with two adjacent supporting rib 214a.
The intensity that an ontology 211 can be effectively improved as a result, further reduced the probability of the first filter cylinder 21 damage, and
It can use multiple supporting rib 214a and multiple sub- supporting tables 2141 improve cylinder ontology 211 and filter housing 1 and have preferably concentricity,
It is smooth to cross water flow, furthermore it is also possible to effectively improve sealing stability and reliability.
According to some embodiments of the present invention, in the cross section of cylinder ontology 211, the outer edge of multiple supporting elements 214 can
In same imaginary circle, thus multiple supporting elements 214 only support on the inner peripheral surface of filter housing 1, it is ensured that cylinder ontology 211 and filter
The concentricity of shell 1 is more excellent.
In conjunction with shown in the good Fig. 6 of Fig. 4, mounting portion 213 is mountable to filter core connecting seat, the separate cylinder ontology 211 of mounting portion 213
One end upper end of diagram (for example) can be equipped with and be suitable for accommodating for sealing the gap between mounting portion 213 and filter core connecting seat
Sealing element sealing tank 2131, sealing tank 2131 is set to the outer peripheral surface of mounting portion 213, and seals tank 2131 along peace
The circumferentially extending in dress portion 213 forms closed-loop shaped.That is, the outer peripheral surface of the separate cylinder ontology 211 of mounting portion 213 is equipped with annular
Sealing tank 2131, sealing element can be equipped with by sealing in tank 2131, and sealing element connects for sealing mounting portion 213 and filter core
Gap between joint chair can reduce leak probability to avoid the generation of string water phenomenon.
Optionally, sealing tank 2131 is multiple, and the axially spaced setting of multiple sealing tanks 2131.Pacify as a result,
It can be realized and be sealed by multiple sealing elements between dress portion 213 and filter core connecting seat, good airproof performance, string water probability can drop significantly
It is low, high reliablity.
According to some embodiments of the present invention, the moulding that the first filter cylinder 21 is integrally formed.In other words, cylinder ontology 211,
214 integrated injection molding of mounting portion 213 and multiple supporting elements.So as to facilitate processing, assembly process is omitted, is conducive to control
Cost, and assembly precision can be promoted, conducive to concentricity is further ensured that.
In some embodiments, top cover 7 is installed, top cover 7 can be used for positioning the first filtration members 4 in the filter chamber of filter cylinder 2.
For example, top cover 7 is connected in the cooperation of the first filter cylinder 21 in Fig. 4 and example shown in fig. 6.First is matched with below with top cover 7
Top cover 7 and its dependency structure are described in detail for filter cylinder 21.
Top cover 7 is pivotally arranged in filter chamber, and the circumferential direction that can be equipped on one in filter cylinder 2 and top cover 7 along filter cylinder 2 is prolonged
The sliding slot 72 stretched, another in filter cylinder 2 and top cover 7 are equipped with along the auxiliary section of the circumferentially extending of filter cylinder 2 215, auxiliary section 215
It slidably engages along the circumferential direction of filter cylinder 2 in sliding slot 72.That is, auxiliary section 215 can be set to when sliding slot 72 is set to filter cylinder 2
Top cover 7, alternatively, filter cylinder 2 is equipped with auxiliary section 215, top cover 7 is equipped with sliding slot 72.
For example, sliding slot 72 is set to top cover 7 in Fig. 4 and example shown in fig. 6, auxiliary section 215 is set to the first filter cylinder 21,
Top cover 7 is packed into the first filter cylinder 21, top cover 7 or the first filter cylinder 21 are then rotated, keeps the auxiliary section 215 on the first filter cylinder 21 sliding
Enter the cooperation of sliding slot 72 in sliding slot 72, so as to rapidly realize the assembly of top cover 7 Yu filter cylinder 2, top cover 7 is matched with filter cylinder 2
Close can easy removal, it is easy to repair and maintenance, and by sliding slot 72 be set to top cover 7, production easy to process, be conducive to control cost.
The other end (that is, upper end of diagram) of central tube 6 passes through top cover 7, and top cover 7 is equipped with and pushed up water pipe 71, central tube 6
It is plugged in and pushed up water pipe 71, pushed up the ring packing muscle 3013 that water pipe 71 is matched in plate of water route 300, pushed up water pipe 71 and water route
Water channel 302 on plate 300 is connected to, compact-sized, easy for installation.Moreover, the mode being slidably matched can make to improve top cover 7 and water
There is serious bias, can be avoided close in the concentricity of ring packing muscle 3013 on road plate 300 when can prevent top cover 7 from assembling
Seal structure offset prevents string water phenomenon, in addition it can prevent the first filter material 4 eccentric, assembly precision can be improved, improve
Reliability and stability.
In conjunction with shown in Fig. 4, Fig. 6 and Figure 23-Figure 25, auxiliary section 215 can be set to filter cylinder 2, and auxiliary section 215 can direction
The central axis of filter cylinder 2 extends, and sliding slot 72 is set to the surface (that is, upper surface of diagram) of top cover 7, in prolonging perpendicular to sliding slot 72
It stretches on the section in direction, sliding slot 72 may include: the first extended segment 721 and the second extended segment 722.Specifically, first extends
One end (lower end of diagram) of section 721 can be connected with top cover 7, and the other end of the first extended segment 721 extends far from top cover 7,
One end of second extended segment 722 can be connected with the other end of the first extended segment 721, and the other end of the second extended segment 722 is remote
Central axis from filter cylinder 2 extends.
Optionally, as shown in Fig. 4, Fig. 6, Figure 19 and Figure 20, auxiliary section 215 can be radially toward the central axis of filter cylinder 2
Extend, the other end of the first extended segment 721 can extend along the circumferential of filter cylinder 2 far from top cover 7, and the second extended segment 722 is another
One end extends radially outwardly along filter cylinder 2.
Thus, it is possible on the surface of top cover 7 be arranged sliding slot 72, sliding slot 72 circumferentially, and sliding slot 72 have be located at
First extended segment 721 of inside and far from outwardly extending second extended segment 722 in the first extended segment 721, the surface of top cover 7, the
One extended segment 721 and the second extended segment 722 collectively form the open sliding slot 72 in outside, and the auxiliary section 215 on filter cylinder 2 can be from outer
It extends internally, when top cover 7 and filter cylinder 2 relatively rotate, auxiliary section 215 can slide in or out sliding slot 72, structure letter in the circumferential
It is single compact, it is ingenious in design, it is easy to disassemble.
In some embodiments, as shown in Figure 23 and Figure 25, in the front end in the slide-in direction of auxiliary section 215,7 Shanghai of top cover
Equipped with limiting section 73, auxiliary section 215 is limited afterwards in place with sliding into sliding slot 72 in auxiliary section 215 and sliding, can be avoided
215 excessive slip of auxiliary section, and the fitment stability of auxiliary section 215 Yu sliding slot 72 can be improved, so can make top cover 7 with
The cooperation upper frame of filter cylinder 2 is more reliable and more stable, and sealing performance is further promoted.
Optionally, limiting section 73 is formed as limit plate, and limit plate extends respectively at the first extended segment 721, second
Section 722 is connected with top cover 7.It is possible thereby to be limited between top cover 7, the first extended segment 721, the second extended segment 722 and limit plate
The sliding slot 72 of radial outside and glide direction rear open out is not only simple in structure compact, and assembling manufacturing easy to process.
According to some embodiments of the present invention, as illustrated in figures 19 and 20, at least one can be equipped on auxiliary section 215 along filter
The fabrication hole 2151 axially through auxiliary section 215 of cylinder 2 can save material, mitigate weight, and can be to avoid auxiliary section
215 deform, and stability can be improved.
In some embodiments, sliding slot 72 is the multiple of the circumferentially-spaced distribution along top cover 7, as shown in figure 20, auxiliary section
215 be one-to-one multiple with sliding slot 72.As shown in figure 20, auxiliary section 215 and sliding slot 72 may respectively be two.In this way, top
Lid 7 and filter cylinder 2 can be combined and realize multiple positioning by multiple sliding slots 72 and matching for auxiliary section 215, and stability is more excellent, reliably
Property is more preferably.
Optionally, as shown in figure 20, multiple sliding slots 72 can be evenly spaced on along the circumferential direction of filter cylinder 2, moreover, multiple cooperations
Portion 215 can be evenly spaced on along the circumferential direction of filter cylinder 2.Thus, it is possible to move the rotation that fits through of top cover 7 and filter cylinder 2 once
It completes, operates conveniently, it is high-efficient, and seal uniform and stable.
According to some embodiments of the present invention, as shown in figure 23 and figure 24, the outer peripheral surface of top cover 7 can be equipped with along top cover 7
Circumferentially spaced multiple top cover support muscle 74, each top cover support muscle 74 can be along the axially and radially extensions of filter cylinder 2.It is optional
Ground, each top cover support muscle 74 stop the inner wall for being butted on filter cylinder 2.
In this way, the inner peripheral surface of the outer peripheral surface of top cover 7, filter cylinder 2 and two adjacent top cover support muscle 74 can construct it is fair
Perhaps the top cover that water flow passes through crosses water flow passage 70, and the water in filter chamber can flow to the first filtering from 7 water passage runner 70 of top cover
Part 4 can flow out after the filtering of the first filtration members 4 from the second pipe water passage 60b between the first filtration members 4 and central tube 6
Second filter chamber 220 completes filtering, simple and compact for structure, can effectively reduce the occupied space of composite filter element 100, be conducive to space cloth
Office, can meet more installation requirements.
For the second filter cylinder 22, in some embodiments, as shown in Fig. 4 and Figure 26-Figure 31, the second filter cylinder 22 is located at
In the installation cavity 10 of filter housing 1, and the second filter cylinder 22 is located at axial one end (for example, lower end of diagram) of the first filter cylinder 21, the
The second filter chamber 220 can be defined in two filter cylinders 22, can be spaced between the outside wall surface of the second filter cylinder 22 and the inner wall of filter housing 1
At the second water space 10a2 excessively, second crosses water space 10a2 is connected to form water space 10a open form with the first water space 10a1 excessively.
Second filter cylinder 22 may include: the first cylinder 221, the second cylinder 222 and multiple ribs 224, specifically, first
It could be formed with the first wound packages chamber 2210 in cylinder 221, on the axial direction of the first cylinder 221, the second cylinder 222 is connected to
One end of neighbouring first filter cylinder 21 of first cylinder 221 could be formed in second cylinder 222 and be connected to the first wound packages chamber 2210
The second wound packages chamber 2220.
As shown in Figure 26, Figure 29 and Figure 31, internal diameter of the internal diameter less than the first cylinder 221 of the second cylinder 222, the second cylinder
For 222 outer diameter less than the outer diameter of the first cylinder 221, multiple ribs 224 can be set to the outer peripheral surface of the second cylinder 222, and multiple
Rib 224 being provided at circumferentially spaced along the second cylinder 222, each rib 224 can be along the second entire body cylinder 222 radially outward
Extend and is connected with the first cylinder 221.The first cylinder 221 is connected with the second cylinder 222 as a result, the outer peripheral surface of the second cylinder 222
Equipped with multiple ribs 224, the second filter chamber 220 can be configured to the cavity that lower diameter is big, upper diameter is small, by the second filter cylinder
22 are configured to rocket barrel structure.
Be conducive to the structural strength of the second filter cylinder 22 of enhancing as a result, can reduce reduce the second filter chamber 220 deformation occurs it is general
Rate can also be conducive to guarantee that the circularity of the second filter chamber 220 is indeformable, can be provided with for the second filtration members 5 in the second filter chamber 220
Effect protection, avoids the second filtration members 5 from collapsing, stability is good, high reliablity, can extend the service life of the second filtration members 5.
According to some embodiments of the present invention, in conjunction with shown in Figure 26, Figure 29 and Figure 31, the second filter cylinder 22 further include: connection
Cylinder 223, connector drum 223 may be provided between the first cylinder 221 and the second cylinder 222, and connector drum 223 can respectively with
First cylinder 221 is connected with the second cylinder 222, can be formed in connector drum 223 respectively with the first wound packages chamber 2210 and second
The connecting cylinder that wound packages chamber 2220 is connected to behave affectedly 2230, it is to be understood that the first wound packages chamber 2210, the second wound packages chamber 2220 and even
Connect cylinder, which is behave affectedly, 2230 collectively forms the second filter chamber 220 described above.Wherein, each rib 224 respectively with the first cylinder 221,
Connector drum 223 is connected with the second cylinder 222.
In other words, the first cylinder 221 is connected with the second cylinder 222 by connector drum 223, and multiple ribs 224 not only may be used
To enhance the intensity of the first cylinder 221 and connector drum 223 itself, and the first cylinder 221 and connector drum 223 can be strengthened
Junction and connector drum 223 and the second cylinder 222 junction bonding strength, can avoid junction deformed damaged,
Improve reliability.
In some embodiments, as shown in figure 31, connector drum 223 can along the first cylinder 221 circumferential direction and radially extend,
The outer end of connector drum 223 can be connected with the first cylinder 221, and the inner end of connector drum 223 is connected with the second cylinder 222.
That is, connector drum 223 is formed as hollow cylinder annular.Structure is simple, easy to process.
In further embodiments, as shown in Figure 26, Figure 27 and Figure 29, connector drum 223 can be along the axis of the first cylinder 221
To extension, axial one end (for example, lower end of diagram) of connector drum 223 can be connected with the first cylinder 221, and connector drum
The 223 axial other end (that is, upper end of diagram) can be connected with the second cylinder 222, from the first cylinder 221 to the second cylinder
On 222 direction, the radial dimension of connector drum 223 is gradually reduced.That is, connector drum 223 is reducing cylinder, make first
Cylinder 221 is connected to the second cylinder 222 by reducing cylinder, can when the second filter cylinder 22 receives external force, mitigate junction by
The sharp impact arrived, meanwhile, the shape of the second filter cylinder 22 can be optimized, improve the aesthetics of the second filter cylinder 22.
Optionally, as shown in figure 29, from the first cylinder 221 on the direction of the second cylinder 222, connector drum 223
Side wall can be tilted towards the central axis of the second cylinder 222, i.e., the inner wall of connector drum 223 towards the second cylinder 222 and inwardly
Inclination, so as to optimize the internal structure of the second filter chamber 220, convenient for the layout and installation of the second filter material 5.
Further, as shown in figure 29, each rib 224 may include: muscle ontology 2241 and muscle interconnecting piece 2242, muscle sheet
Body 2241 can be located on the outer peripheral surface of the second cylinder 222, and muscle ontology 2241 can radially outward prolonging along the second cylinder 222
Stretch, muscle interconnecting piece 2242 may connect to the axial end portion of muscle ontology 2241, and muscle interconnecting piece 2242 can respectively with connector drum
223 are connected with the first cylinder 221, simple and compact for structure, can effectively improve the intensity and reliability of the second filter cylinder 22.
Optionally, as shown in figure 28, multiple ribs 224 can be arranged along the circumferential uniform intervals of the second cylinder 222, so as to
To be uniformly in the circumferential direction that the second filter cylinder 22 provides support and protective effect, reinforcing effect is good, and overall structure is neat and artistic.
Optionally, each rib 224 can be along the axially extending of the second entire body, thus, it is possible between adjacent rib 224
It forms axially extending second and crosses water space 10a2, flow over water resistance conducive to reduction, smooth in water flow can be improved.
Optionally, each rib 224 can from the second cylinder 222 far from first cylinder 221 axial end face (for example,
The upper surface of diagram) extend to the first cylinder 221, that is, and each rib 224 extends from an end face of the second entire body in the axial direction to be connected
It is connected to the first cylinder 221, it is easy to process, the probability of 22 deformed damaged of the second filter cylinder can be further decreased.
Optionally, in the cross section of the second cylinder 222, the outer edge of multiple ribs 224 is located in same imaginary circle, from
And can guarantee the concentricity of multiple ribs 224 and the second logical cylinder 22, installation accuracy can be promoted further.
Optionally, as shown in Figure 29 and Figure 31, in the section of central axis for crossing the first entire body, each rib 224
Outer edge is concordant with the outer edge of the first cylinder 221.Optionally, in the projection in the axial direction along the second entire body, multiple ribs
224 are located in same imaginary circle with the outer edge of the first entire body.
That is, the lateral surface of each rib 224 is coplanar with the outer peripheral surface of the first entire body.It can be conducive to control the as a result,
The radial full-size of two filter cylinders 22 reduces occupied space, benefit to be conducive to guarantee the concentricity of the second filter cylinder 22 and filter housing 1
In layout, it can satisfy more installation requirements.
As shown in Figure 29 and Figure 31, the outside of one end far from the first cylinder 221 of each rib 224 is equipped with support level
7211, support level 7211 is suitable for cooperating with middle separate disk 3, to support middle separate disk 3, realizes the fixed and positioned of the second filter material 5, in
It will be described below every the specific structure of disk 3.
For the ease of dismantling and realizing positioning, and assist realizing the two channel technique of composite filter element 100, the bottom of filter cylinder 2
Bottom cover 8 can be equipped with.Specifically, as shown in Figure 4 and Figure 6, bottom cover 8 can be set to the bottom of the second filter cylinder 22, and the second filtration members 5 can
It is mounted on bottom cover 8, and the bottom cover water hole 80 for being connected to water space 10a and the second filter chamber 220 can be equipped on bottom cover 8.By
This, bottom cover 8 can support the second filtration members 5 of bearing, improve the stability and reliability of the second filtration members 5, prevent string water.
According to some embodiments of the present invention, as shown in Figure 32-Figure 35, bottom cover 8 may include bottom cover ontology 81 and be set to
Lid interconnecting piece 82 on bottom cover ontology 81, in a ring, bottom cover water hole 80 is set on bottom cover ontology 81 lid interconnecting piece 82, in conjunction with figure
Shown in 4 and Fig. 6, filter cylinder 2 (being specially the second filter cylinder 22 in the example of diagram) only can be butted on bottom cover ontology 81, and filter cylinder 2 can
It is connected with the sealing of lid interconnecting piece 82.Bottom cover 8 can connect in the bottom of the second filter cylinder 22 as a result, and bottom cover 8 is in the circumferential with second
Filter cylinder 22 seals, and second outside bottom cover 8 can be crossed the second filter in water space 10a2 and the second filter cylinder 22 by bottom cover water hole 80
Chamber 220 is connected to, so as to facilitate the installation of the second filtration members 5, conducive to the inner space for rationally utilizing the second filter chamber 220.
In conjunction with shown in Figure 32, Figure 34 and Figure 35, annular interconnecting piece 212 may include: the first connecting portion 821 and ring of annular
The second connecting portion 822 of shape, wherein first connecting portion 821 is connected with the outer periphery of bottom cover ontology 81, and first connecting portion
821 are axially facing the extension of filter cylinder 2 along filter cylinder 2, and second connecting portion 822 can be set to the side towards filter cylinder 2 of bottom cover ontology 81,
And second connecting portion 822 can be spaced apart set on the inside of first connecting portion 821, first connecting portion 821 with first connecting portion 821
The installation groove 823 of annular can be formed between second connecting portion 822, filter cylinder 2 can be plugged in first connecting portion 821 and the
Between two interconnecting pieces 822, i.e., filter cylinder 2 is plugged in installation groove 823, and bottom cover water hole 80 is located in second connecting portion 822, structure
It is simple and compact, it is quick and easy for installation.
In some embodiments, as shown in figs. 4 and 6, filter cylinder 2 only can be butted on bottom cover ontology 81, and filter cylinder 2 can be with first
Interconnecting piece 821 is connected at least one of second connecting portion 822 sealing, and in other words, the bottom surface of filter cylinder 2 is only butted on bottom cover ontology
81 upper surface, filter cylinder 2 and first connecting portion 821 are tightly connected, alternatively, filter cylinder 2 and second connecting portion 822 are tightly connected, then
Alternatively, filter cylinder 2 is tightly connected with first connecting portion 821 and second connecting portion 822 simultaneously.It is convenient for as a result, by bottom cover 8 and filter cylinder 2
In place, stability is good for assembly, furthermore, it is possible to the probability that bottom cover 8 surprisingly falls off is reduced, high sealing reliability.
Optionally, the part of filter cylinder 2 being plugged between first connecting portion 821 and second connecting portion 822 is connect with first
The sealing element of annular can be equipped between at least one of portion 821 and second connecting portion 822.That is, filter cylinder 2 and first connects
The sealing element by there is annular can be set between socket part 821, alternatively, annular can be equipped between filter cylinder 2 and second connecting portion 822
Sealing element, then alternatively, can be respectively equipped between filter cylinder 2 and first connecting portion 821 and between filter cylinder 2 and second connecting portion 822
The sealing element of annular.So as to further lift-off seal effect, string water, leak can be effectively prevent.
Optionally, sealant, filter cylinder 2 and first connecting portion can be equipped between first connecting portion 821 and second connecting portion 822
821 are connected with second connecting portion 822 by sealant sealing.In other words, 2 grafting of filter cylinder and first connecting portion 821 and second connect
In annular mounting recess 823 between socket part 822, annular is washed, and sealant is perfused in installation groove 823, to realize filter cylinder 2 and the
The sealed connection of one interconnecting piece 821 and second connecting portion 822, is not easy to misplace, and can guarantee preferably sealing effect, and be conducive to
Control cost.
Optionally, filter cylinder 2 and lid interconnecting piece 82 can pass through hot-melt adhesive paste.Alternatively, optionally, filter cylinder 2 and lid interconnecting piece
82 can be connected with welded seal, for example, filter cylinder 2 can be connected with lid interconnecting piece 82 by rotation weldering or ultrasonic bonding.As a result,
The connection of filter cylinder 2 Yu bottom cover 8 not only may be implemented, but also sealing between the two may be implemented, can avoid the first filtering runner
And second go here and there water between filtering runner, and a variety of filtering functions of composite filter element 100 can be made more reliablely and stablely to realize.
In some embodiments, as shown in figure 35, bottom cover water hole 80 can be set to the middle part of bottom cover ontology 81, i.e. filter cylinder 2
The outer water space 10a that crosses is connected to the filter chamber in filter cylinder 2 in the medium position of bottom cover 8, so as to optimize the second filter material 5
Layout, so that structure is more compact.Optionally, bottom cover water hole 80 may include that multiple 8 sons of bottom cover being spaced apart cross the mouth of a river
(not shown), thus, it is possible to promote uniformity when water flow flows through bottom cover water hole 80, water flow pair when avoiding hydraulic pressure excessive
Second filter material 5 generates acute impact, can provide protection to a certain extent for the second filter material 5.
In the embodiment that Fig. 4 and Fig. 6 illustrates, composite filter element 100 further includes middle separate disk 3.With reference to the accompanying drawing to interval
Disk 3 and its dependency structure are described in detail.
Middle separate disk 3 is installed, middle separate disk 3 is connected with the sealing of filter cylinder 2, the filter chamber in filter cylinder 2 is divided into filter cylinder 2
Close on the first filter chamber 210 of plate of water route 300 and the second filter chamber 220 far from plate of water route 300.In the illustrated embodiment.Filter cylinder 2
Including the first filter cylinder 21 and the second filter cylinder 22, middle separate disk 3 is connected between the first filter cylinder 21 and the second filter cylinder 22, and middle separate disk
3 separate the first filter chamber 210 and the second filter chamber 220.I.e. middle separate disk 3 can seal phase with the first filter cylinder 21 and the second filter cylinder 22 respectively
Even, the first pipe that middle separate disk 3 is equipped with for being connected in central tube 6 crosses second in water flow passage channel 60a and the second filter cylinder 22
Filter chamber 220 every disk water hole 30, the first filtering runner and the second filtering runner are kept apart.
Optionally, lip ring can be equipped between middle separate disk 3 and filter cylinder 2, to separate the first filter chamber 2 and the second filter chamber
220, avoid drainage.
According to some embodiments of the present invention, as shown in Figure 36-Figure 39, middle separate disk 3 may include: every disk ontology 31 and ring
Shape every disk interconnecting piece 32, every disk ontology 31 can along the first filter cylinder 21 circumferential direction and radially extend, can be set to every disk water hole 30
Every disk ontology 31, it is connected every disk ontology 31 with the sealing of the second filter cylinder 22, it can be with the outer periphery every disk ontology 31 every disk interconnecting piece 32
It is connected, and can be sealed with the first filter cylinder 21 along the axially extending of the first filter cylinder 21 every disk interconnecting piece 32 every disk interconnecting piece 32
It is connected, so as to separate the second filter chamber 220 in the first filter chamber 210 and the second filter cylinder 22 in the first filter cylinder 21, prevents
Only occur string water phenomenon between the first filter chamber 210 and the second filter chamber 220, and sealing reliability is good, is not easy dislocation failure.
Optionally, as shown in Figure 4 and Figure 6, the first filter cylinder 21 extends downward beyond middle separate disk 3, the first filter cylinder 21 with every disk
Between interconnecting piece 32 can be equipped with lip ring 33, i.e., the inner peripheral surface of the first filter cylinder 21 with every disk interconnecting piece 32 outer peripheral surface it
Between by lip ring 33 realize sealing, it is convenient for disassembly and assembly, be conducive to control cost.
Further, the sealed groove of annular is equipped with every one of upper casing in disk interconnecting piece 32 and the first filter cylinder 21
321, lip ring 33 is set in sealed groove 321, lip ring 33 can be limited in sealed groove 321, be avoided
Sealing element dislocation, sealing reliability are further promoted.In example as shown in Figure 4, sealed groove 321 is set to every disk interconnecting piece
32, and in the axial direction of filter cylinder 2, sealed groove 321 can be corresponding with every 31 position of disk ontology.It is easy to process as a result, it is conducive to dress
Match, cost can be effectively controlled, and sealing stability can be improved.
In some embodiments, the second filter cylinder 22 be equipped with support level 7211, every disk interconnecting piece 32 can only support in branch
Support step 7211 stops specifically, support level 7211 is located on multiple ribs 224 of the second filter cylinder 22 every disk interconnecting piece 32
The support level 7211 being butted on multiple ribs 224.Thus, it is possible to using the bearing of the second filter cylinder 22 every disk interconnecting piece 32, will in
It is located between the first filter cylinder 21 and the second filter cylinder 22 every disk 3, can prevent the first filtration members 4 in the first filter chamber 210 from collapsing, it can
It is promoted by property.
According to some embodiments of the present invention, as shown in Fig. 4, Figure 38 and Figure 39, central tube 6 connects with every disk water hole 30
It is logical, every can be equipped with locating support table 311 in disk water hole 30, one end of central tube 6 only support with locating support table 311, so as to
Central tube 6 to be located in the first filter cylinder 21, smart structural design is easy to assembly.Optionally, locating support table 311 can shape
As radially with the annular brace platform of circumferentially extending, being positioned so as to pipe 6 centered on throughout the circumferential, assembly precision
Height, stability is more preferably.
According to some embodiments of the present invention, as shown in figure 39, circular every disk water hole 30 every that can be equipped on disk ontology 31
And axially towards the positioning bar 312 that the first filter cylinder 21 extends, central tube 6 can be plugged in positioning bar 312, thus positioning bar
312 can in the circumferential centered on pipe 6 limited, avoid central tube 6 tilt, positioning bar 312 cooperate locating support table 311,
Central tube 6 can be stably installed on middle separate disk 3.
Optionally, holding tank 611 can be equipped in one of them in positioning bar 312 and central tube 6, in holding tank 611
It can be equipped with the sealing ring for the gap between center seal pipe 6 and middle separate disk 3, i.e. the first pipe of sealing ring sealing connection crosses water
Channel 60a and every disk water hole 30.For example, central tube 6 is equipped with holding tank 611 in the example of attached drawing signal, snare is sealed
If on central tube 6 and being contained in holding tank 611.When central tube 6 is installed in positioning bar 312 as a result, sealing ring center seal
Gap between pipe 6 and positioning bar 312 will be connected to every disk water hole 30 with the first pipe water passage 60a.Structure is simply tight
It gathers, sealing effect is good, and dismounts convenience, is conducive to control cost.
In one embodiment of the invention, composite filter element 100 includes central tube 6, and central tube 6 is located at the first filter chamber 210
It is interior, and one end of central tube 6 is connected to middle separate disk 3, and the other end of central tube 6 is pierced by the first filter cylinder 21, can shape in central tube 6
The first pipe water passage 60a that the second filter chamber of Cheng Youyu 220 is connected to, the first pipe water passage 60a are mutually separated by with the first filter chamber 210
From.Central tube 6 can pass through the first filter chamber 210 and be connected to the second filter chamber 220 as a result, realize the first filtering runner and the second mistake
The mutually isolated of runner is filtered, so that the first filtering runner and the second filtering runner is individually filtered, is independent of each other, it is compact-sized,
It is ingenious in design.
As shown in Figure 40-Figure 43, central tube 6 is located in the first filter chamber 210, and one end of central tube is connected to interval
Disk, in the example shown in the series of figures, central tube 6 are located in the filtration channel 40 in the first filter material 4, and central tube 6 may include: tube body
61 and multiple baffles 62, wherein the first pipe water passage 60a is formed in tube body 61, multiple baffles 62 can be set to tube body
61 outer peripheral surface, and multiple baffles 62 being provided at circumferentially spaced along tube body 61, each baffle 62 can be along tube body 61
It extends radially outwardly, to form the second pipe water passage 60b between adjacent two baffles 62 and the first filter material 4.
That is, being formed with the first pipe water passage 60a in hollow tube body 61, multiple baffles 62 are located at tube body
On 61 outer peripheral surface and extend outwardly, it can be in mistake in the outer peripheral surface, adjacent two baffles 62 and the first filter material 4 of tube body 61
It filters and forms the second pipe water passage 60b, the first pipe water passage 60a and the second pipe water passage between the inner wall in channel 40
60b inside and outside tube body 61, independently of each other, is not connected to mutually respectively.
Multiple baffles 62 can play a supporting role to the first filter material 4 as a result, and the intensity of the second filter material 5 can be improved, and prevent
Only filter material deformation is collapsed, and filtering stability can be improved, and may make up the second pipe water passage 60b, so that the first pipe is crossed water logical
Road 60a and the second pipe water passage 60b are independently arranged, smart structural design, and space utilization rate is high.
Optionally, as shown in Figure 40 and Figure 42, multiple baffles 62 can be arranged along the circumferential uniform intervals of tube body 61, thus
Multiple equally distributed runners can be formed in the outer peripheral surface of tube body 61 again, cross water flow and freely stablize, be conducive to promote filter effect.
Optionally, on the axial direction of tube body 61, both ends that the both ends of each baffle 62 can respectively with tube body 61
There is gap in the axial direction of tube body 61.That is, each baffle 62 is located at the middle part of tube body 61.Thus, it is possible to pre-
Pipeline section is stayed to assemble central tube 6 and plate of water route 300 and middle separate disk 3.
In some embodiments of the invention, as shown in figure 43, each baffle 62 may include: gear ontology 621 and guiding
Portion 622, wherein gear ontology 621 may be provided on the outer peripheral surface of tube body 61, and keeps off ontology 621 and can extend radially outward, and lead
It can connect to portion 622 in the axial end portion for working as ontology, and guide part 622 can be connected with tube body 61, outside guide part 622
Side is to tilt far from gear ontology 621 and towards the central axis of tube body 61 inclined-plane extended.For example, in the example of diagram
In, tube body 61 orients along the vertical direction, and each baffle 62 includes gear ontology 621 and the upper and lower ends for being located at gear ontology 621
Two guide parts 622, wherein the lateral surface of the guide part 622 on top upwardly and inwardly tilts extension, the guide part 622 of lower part
Lateral surface inwardly and downwardly tilt extension.
As a result, during installation, the inclined-plane on guide part 622 can provide booster action, be conducive to central tube 6 being packed into first
Filtration channel 40 in filter material 4 can reduce assembly difficulty, improve assembly efficiency, additionally it is possible to reduce rigging error.
Optionally, the first pipe water passage 60a is along the axially extending of tube body 61, and as shown in figure 43, it is logical that the first pipe crosses water
Road 60a can be penetrated through from an axial end face for tube body 61 to the axial other end of tube body 61, i.e. the first pipe water passage
60a is conducive to assembly along the both ends for axially penetrating through tube body 61 of tube body 61, compact-sized, convenient processing and manufacture.
In some embodiments, as shown in figure 42, the cross section of the cross section of tube body 61 and the first pipe water passage 60a
It can be circle, i.e., tube body 61 is round tube, and the first pipe water passage 60a is circular channel, also, in the transversal of tube body 61
In face, the outer edge of multiple baffles 62 can be located in same imaginary circle, and multiple baffles 62 can only support the first filter material 4 as a result,
Inner peripheral surface can promote the concentricity between the first filter material 4 and the first filter chamber 210, and water excessively is smooth, and filter effect is good.
As shown in figure 43, the axial ends of tube body 61 is respectively equipped with the holding tank 611 for being suitable for accommodating sealing element, holding tank
611 are set to the outer peripheral surface of tube body 61 and along the circumferentially extending of tube body 61 at closed-loop shaped.In this way, central tube 6 is installed into
After one filter cylinder 21, the sealing element positioned at top can seal ring packing muscle 3013 and center in the first installation attachment base 3011
Gap between pipe 6, meanwhile, the sealing element positioned at bottom can seal the gap between disk water hole 30 and central tube 6, from
And realize that the first filtering runner and second filters the mutually indepedent of runner, avoid string water.
Optionally, holding tank 611 can be multiple, and multiple holding tanks 611 can be arranged along the axially spaced-apart of tube body 61,
So as to install between multiple sealing ring center seal pipes 6 and middle separate disk 3 and central tube 6 and the junction of plate of water route 300
Gap further avoids string water, drainage occur, improves filtering stability, and can extend composite filter element 100 uses the longevity
Life.
Advantageously, central tube 6 can be integrally formed part, and in other words, tube body 61 and multiple baffles 62 can be integrally formed,
Convenient processing and manufacture, and can omit assembly process, avoids assembly bring error, the first filter material 4 and the first filter chamber 210
Concentricity also simultaneously with guarantee, cross the smooth stabilization of water, filter effect is more preferably.
Wherein, central tube 6, middle separate disk 3 cooperate the first filter cylinder 21 and the second filter cylinder 22 may be constructed with the first mistake is isolated
Filter the barrier assembly of runner and the second filtering runner.
For the first filtration members 4 and the second filtration members 5, in conjunction with shown in Fig. 2, Fig. 4 and Fig. 6, the installation of the first filtration members 4
In the first filter chamber 210, the second filtration members 5 can be located at axial one end of the first filtration members 4, and the second filtration members 5 are mounted on
In second filter chamber 220.Wherein, on the direction of water flow, the second filtration members 5 can be located at the downstream of the first filtration members 4, in filter housing 1
Axial direction on, and second level filter material is located at the downstream of first order filter material, on the axial direction of filter housing, first order filter material
The length L2 of length L1 and the second level filter material meets: 0.5≤L2/L1≤1.
That is, filtration members step-by-step arrangement, and the first filtration members 4 and the second filtration members 5 are distributed in the axial direction.To mistake
The water of filter can first pass through the filtering of the first filtration members 4, filter using the second filtration members 5, i.e. the first filtration members 4 are preposition filter material
Core, the second filtration members 5 are postposition filter material core, and the length ratio of preposition filter material core and postposition filter material core is 1:1 to 1:5.Thus, it is possible to
Optimize the water route layout in filter process, reduce occupied space, the estimated of the first filtration members 4 and the second filtration members 5 can also be made
Service life matches, and can reduce replacement frequency, is conducive to control cost.
Herein it should be noted that on the direction of water flow, the second filtration members 5 are located at the downstream of the first filtration members 4, can be with
It is that water flow first passes through the first filtering for the first time of filtration members 4, is then directly over the second filtration members 5 and filters again, can also be water flow
The first filtering for the first time of filtration members 4 is first passed through, it is then secondary through other filter elements (for example, second filter core 200 of attached drawing signal)
Filtering flows through the realization of the second filtration members 5 later and filters again.
Optionally, the minimum diameter of filter housing 1 can be D1, and the maximum outside diameter of filter cylinder 2 is that D2, D1 and D2 can satisfy: D1-D2
≥0.5mm.In other words, the annular formed between the inner peripheral surface of filter housing 1 and the outer peripheral surface of filter cylinder 2 crosses water space 10a, the gap
Size can be in 0.25mm or more value.For example, can have 0.5mm's between the inner peripheral surface of filter housing 1 and the outer peripheral surface of filter cylinder 2
Gap, at this point, D1-D2=10mm.Certainly, the invention is not limited thereto, shape between the inner peripheral surface of filter housing 1 and the outer peripheral surface of filter cylinder 2
At gap can also be other sizes.In this way, can reduce the mistake water resistance in the first filtering runner, kept water smooth, it can
To promote filter effect, water purification output is stablized.
Optionally, the minimum diameter d of the first pipe water passage 60a in central tube 6 can satisfy: d >=3mm.For example, the
The internal diameter of one pipe water passage 60a can be 3mm, 5mm, 10mm etc..So as to reduce the water that the first pipe is crossed in water flow passage 60a
Pressure, filter effect is good, and water purification exports smooth stabilization.
According to some embodiments of the present invention, each of the first filtration members 4 and the second filtration members 5 may include at least
One filter material can pointedly cross the different impurities in drainage by different filter materials, promote the taste quality of water, extension is multiple
Close the filtering function of filter core 100.For example, in the example shown in the series of figures, the first filtration members 4 include a filter material, the second filter material 5 includes
Two-stage filter material.
In some embodiments, the second filtration members 5 may include multistage filter material, and multistage filter material can be along axial direction to distribution
In in the second filter chamber 220.Thus, it is possible to extend the filtering function of postposition filter core, effluent quality and water outlet can be advanced optimized
Mouthfeel, while the inner space of the second filter chamber 220 can be rationally utilized, topology layout is rationally ingenious, convenient for disassembly and assembly.
Optionally, as shown in Figure 4 and Figure 6, it is in cylinder that the second filter material 5, which may include tubular first order filter material 51 and second,
The second level filter material 52 of shape, second level filter material 52 can be set to one end (example of neighbouring first filtration members 4 of the first first order filter material 51
Such as, the upper end of diagram), it can be spaced apart by isolation board 53 between first order filter material 51 and second level filter material 52.In this way, first
Grade filter material 51 and second level filter material 52 can be arranged in the axial direction, and water flow is made to flow through the second filter chamber from water space 10a excessively
220 successively pass through first order filter material 51 and the realization double-filtration of second level filter material 52, knot when flowing to the first pipe filtration channel 6a
Structure is simple and compact, and filter effect is good.
Further, as shown in Figure 4 and Figure 6, can have the first material water channel 510, second level filter material in first order filter material 51
Can have the second filter material water channel 520 in 52, the first filter material water channel 510 be connected to water space 10a is crossed, the second filter material water channel 520 and
First pipe water passage 60a connection.In this way, the water crossed in water space 10a can flow into the first filter material water channel 510, by the first order
Filter material 51 flows to second level filter material 52 after filtering, and flows to the first pipe from the second filter material water channel 520 after the filtering of second level filter material 52
Water passage 60a, finally exports.
Wherein, for the composition and type of the first filtration members 4 and the second filtration members 5, those skilled in the art can root
Adaptability setting is done according to factors such as demand, cost, installation spaces.For example, the first filtration members 4 include a filter material, the second filtering
Part 5 includes two-stage filter material, and filter material includes but is not limited to strainer, filter cloth, active carbon, PP cotton etc..The present invention does not do specific limit to this
It is fixed.
Element kit 1000 and its mistake accord to a specific embodiment of that present invention is described in detail below with reference to Fig. 4 and Fig. 6
Filter journey.
In the present embodiment, element kit 1000 includes plate of water route 300, the first filter core and the second filter core 200, wherein the first filter
Core is composite filter element 100, and the second filter core 200 is reverse osmosis filter core, i.e., front filter element in the prior art and postposition filter core are integrated
For the composite filter element 100 in the present embodiment, composite filter element 100 is installed on the first attachment base 3011,200 reverse osmosis diafiltration of the second filter core
Core is installed on the second attachment base 3012, the central axis of the central axis of composite filter element 100 and the second filter core 200 vertically side
To orientation, and composite filter element 100 and the second filter core 200 and plate of water route 300 are generally vertically.
Element kit 1000 in use, in composite filter element 100 first filtering runner and second filtering runner it is mutually indepedent,
It is not connected to mutually.
Specifically, element kit 1000 in use, extraneous water plate 300 enters composite filter element 100 by water, in figure
Shown in solid straight arrows, top cover of the water across top cover support muscle 74 and the first filter cylinder 21 crosses water flow passage 70 and enters the first filter
Chamber 210 is realized by the first filtration members 4 and is filtered, water is flowed from outside to inside, then flowed between the first filter material 4 and tube body 61
In second pipe water passage 60b, then the water channel 302 on plate 300 flows out by water, completes 1002 in the second filtering runner
Prefilter process.
The second filter core 200, which can be flowed to, by the filtered water of front filter element carries out secondary filter, in the present embodiment, the
Two filter cores 200 are reverse osmosis filter core, and the filter process of reverse osmosis filter core is known to those skilled in the art, herein no longer in detail
Carefully repeat.
Filter housing 1 can be flowed by plate 300 by water by the filtered water of the second filter core 200, such as the hollow straight line arrow in Fig. 4
Described in head, first excessively water space 10a1 of the water between filter housing 1 and the first filter cylinder 21 is flowed between filter housing 1 and the second filter cylinder 22
Second crosses water space 10a2, then flows into the second filter chamber 220 from the bottom cover water hole 80 on bottom cover 8, by from the first filter material water channel
510 filter by first order filter material 51, then second level filter material 52 are flowed to from the edge of isolation board 53, by second level filter material 52
The second filter material water channel 520 is flowed into after filtering, by middle separate disk 3 every disk water hole 30, then from the first pipe water passage 60a
Plate of water route 300 is flowed to, completes the postposition filter process in the first filtering runner, then through plate of water route 300, export filtered net
Water.
In the above embodiment of the present invention, the filter process in the first filtering runner filters filtered in runner with second
Cheng Butong, and cooperate reverse osmosis filter core, it may be implemented continuously to filter.It is, of course, understood that in the first filtering runner
Filter process and the filter process in the second filtering runner can be with identical, and composite filter element 100 and the second filter core 200 can be with
Individual filter process is carried out side by side.
Water treatment facilities according to an embodiment of the present invention, including element kit according to the above embodiment of the present invention 1000,
Element kit 1000 has the composite filter element 100 of above-described embodiment.
Dual channel may be implemented by the way that above-mentioned composite filter element 100 is arranged in water treatment facilities according to an embodiment of the present invention
Independent filtering, filter effect is good, and simple and compact for structure, is conducive to rational deployment, convenient for disassembly and assembly laborsaving, can save maintenance dimension
It protects cost and can satisfy more installation requirements in addition, reducing occupied space.
Water treatment facilities can be water purifier, purifying drinking appliance, water dispenser etc..Water treatment facilities according to an embodiment of the present invention
Other structures and operation be all for those of ordinary skills it is known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (21)
1. a kind of composite filter element characterized by comprising
Filter housing defines installation cavity in the filter housing；
Filter cylinder, the filter cylinder are located in the installation cavity and form the first filtering runner and second being mutually isolated with the filter housing
Filter runner, wherein the first filtration members for filtering fluid in the first filtering runner, institute are equipped in the first filtering runner
State the second filtration members being equipped in the second filtering runner for filtering fluid in the second filtering runner；
For the barrier assembly of the first overcurrent runner and the second filtering runner to be isolated；
Wherein, the filter cylinder includes:
Cylinder ontology, is formed with filter chamber in the cylinder ontology；
Mounting portion, the mounting portion is connected with the cylinder ontology and the mounting portion is adapted to attach to water treatment facilities, the peace
At least one of dress portion and described cylinder ontology are connected with the barrier assembly；
Supporting element, the supporting element is set to the outer wall of the cylinder ontology, to form water space with the filter housing.
2. composite filter element according to claim 1, which is characterized in that the central axis of the mounting portion and the cylinder ontology
Central axis be overlapped.
3. composite filter element according to claim 1, which is characterized in that the mounting portion passes through interconnecting piece and the cylinder ontology
Be connected, the interconnecting piece along the cylinder ontology circumferential direction and radially extend, the outer end of the interconnecting piece connect the cylinder ontology and
Inner end connects the mounting portion.
4. composite filter element according to claim 1, which is characterized in that the supporting element is multiple, and multiple supports
Part is arranged along the circumferential direction or axially spaced-apart of the cylinder ontology, each supporting element extending radially outwardly along the cylinder ontology.
5. composite filter element according to claim 4, which is characterized in that the multiple supporting element includes:
Multiple supporting ribs, the multiple supporting rib along the cylinder ontology the circumferentially-spaced outer peripheral surface for being opened in the cylinder ontology,
Each supporting rib is axially extending along the cylinder ontology.
6. composite filter element according to claim 5, which is characterized in that circumferential direction of multiple supporting ribs along the cylinder ontology
Uniform intervals setting.
7. composite filter element according to claim 5, which is characterized in that axial direction of each supporting rib from the cylinder ontology
One end face extends to the axial other end of the cylinder ontology.
8. composite filter element according to claim 4, which is characterized in that the multiple supporting element includes:
At least one set of supporting table group, supporting table group described in every group includes multiple sub- supporting tables, more in supporting table group described in every group
A sub- supporting table is set to the outer peripheral surface of the cylinder ontology and along the circumferential array of the cylinder ontology, each sub- supporting table
Along the circumferentially extending of the cylinder ontology.
9. composite filter element according to claim 8, which is characterized in that the supporting table group is multiple groups, and props up described in multiple groups
The axially spaced-apart that platform group is supportted along the cylinder ontology is arranged.
10. composite filter element according to claim 8, which is characterized in that the cross section of each sub- supporting table is rectangle.
11. composite filter element according to claim 4, which is characterized in that the multiple supporting element includes:
Multiple supporting ribs, multiple supporting ribs are set to the outer peripheral surface of the cylinder ontology and set along the circumferentially-spaced of cylinder ontology
It sets, each supporting rib is axially extending along the cylinder ontology；
Multiple sub- supporting tables, each sub- supporting table are set to the outer peripheral surface of the cylinder ontology and prolong along the circumferential direction of the cylinder ontology
It stretches, each sub- supporting table is spaced apart between two adjacent supporting ribs and with the supporting rib.
12. the composite filter element according to any one of claim 4-11, which is characterized in that in the cross section of the cylinder ontology
Interior, the outer edge of multiple supporting elements is located in same imaginary circle.
13. composite filter element according to claim 4, which is characterized in that diameter of each supporting element in the cylinder ontology
Extended height on direction is more than or equal to 0.5mm.
14. composite filter element according to claim 1, which is characterized in that one far from the cylinder ontology of the mounting portion
End is equipped with the sealing tank for being suitable for accommodating sealing element, and the sealing tank is set to the outer peripheral surface of the mounting portion and along the installation
The circumferentially extending in portion forms closed-loop shaped.
15. composite filter element according to claim 14, which is characterized in that the sealing tank is multiple and axially spaced
Setting.
16. composite filter element according to claim 1, which is characterized in that the barrier assembly includes top cover, and the top cover can
It is pivotally set in the filter cylinder, sliding slot is equipped in the top cover, the filter cylinder is equipped with the cooperation connecting with the sliding slot
Portion, the auxiliary section are slidably engaged along the circumferential direction of the filter cylinder in the sliding slot.
17. composite filter element according to claim 16, which is characterized in that the auxiliary section is set to the mounting portion and neighbouring
The cylinder ontology, circumferentially extending of the auxiliary section along the cylinder ontology.
18. according to claim 17 meet filter core, which is characterized in that the auxiliary section is equipped at least one along described
The fabrication hole axially through the auxiliary section of filter cylinder.
19. according to claim 16 meet filter core, which is characterized in that the auxiliary section is the circumferential direction along the cylinder ontology
What is be spaced apart is multiple, and the sliding slot is multiple correspondingly with the auxiliary section.
20. composite filter element according to claim 1, which is characterized in that the moulding that first filter cylinder is integrally formed.
21. a kind of water treatment facilities characterized by comprising
Plate of water route, the plate of water route are equipped with filter core connecting seat；
Filter core, the filter core are composite filter element described in any one of claim 1-20, and the composite filter element removably connects
It is connected to the filter core connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404856.3A CN110404317A (en) | 2018-04-28 | 2018-04-28 | Composite filter element and water treatment facilities with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404856.3A CN110404317A (en) | 2018-04-28 | 2018-04-28 | Composite filter element and water treatment facilities with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110404317A true CN110404317A (en) | 2019-11-05 |
Family
ID=68357568
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810404856.3A Pending CN110404317A (en) | 2018-04-28 | 2018-04-28 | Composite filter element and water treatment facilities with it |
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| CN (1) | CN110404317A (en) |
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