CN107986393A - Filter core and reverse osmosis water purifier - Google Patents
Filter core and reverse osmosis water purifier Download PDFInfo
- Publication number
- CN107986393A CN107986393A CN201610951781.1A CN201610951781A CN107986393A CN 107986393 A CN107986393 A CN 107986393A CN 201610951781 A CN201610951781 A CN 201610951781A CN 107986393 A CN107986393 A CN 107986393A
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- China
- Prior art keywords
- pure water
- pipe
- waste
- water
- osmosis membrane
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 112
- 239000012528 membrane Substances 0.000 claims abstract description 145
- 239000002351 wastewater Substances 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000002699 waste material Substances 0.000 claims description 98
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000000565 sealant Substances 0.000 claims description 11
- 239000011229 interlayer Substances 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000009295 crossflow filtration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a filter element and a reverse osmosis water purifier, wherein the filter element comprises a shell, and a reverse osmosis membrane element and a water path converter which are accommodated in the shell, the shell comprises a cover body, the cover body is provided with a raw water inlet, a waste water outlet and a pure water outlet, a raw water flow path is formed in the shell, the inner side of the cover body is convexly provided with a first sleeve communicated with the pure water outlet and a second sleeve communicated with the waste water outlet, and the second sleeve surrounds the outer side of the first sleeve; the reverse osmosis membrane element comprises a membrane element body and a first end cover, wherein a waste water pipeline and a pure water pipeline are arranged inside the membrane element body, a pure water inlet and a waste water inlet are formed in the side part of the membrane element body, and a waste water outlet and a pure water joint are formed in the first end cover; the waterway converter is buckled on the first end cover and is provided with a first sleeve which is communicated with the wastewater outlet and is hermetically sleeved with the pure water joint, and a second sleeve is hermetically sleeved with the waterway converter. The filter element sealing assembly structure is simple, and the water way is reasonably arranged.
Description
Technical field
The present invention relates to reverse osmosis purified water technical field, the reverse osmosis purified water of more particularly to a kind of filter core and the application filter core
Device.
Background technology
The filter pipeline of the filter core of water purifier uses cross-flow filtration scheme more at present, and water inlet direction is generally membrane component axis
To although such a water intake mode can realize filtering, since its runner is long, flow velocity is slower, easily accumulates dirt, can influence
The service life of film.The design of cross-flow filtration also makes the seal structure complex of filter pipeline at the same time so that the overall assembling structure of filter core
It is complicated.
The content of the invention
The main object of the present invention is to provide a kind of filter core, it is intended to realizes three raw water in filter core, waste water, pure water water routes
Reasonable separation, and simplify the sealing assembling structure of filter core.
To achieve the above object, filter core proposed by the present invention, including housing and be placed in reverse osmosis in the housing
Membrane component and waterway converter,
The housing includes the shell and lid that mutually fasten, and the lid is provided with raw water inlet, wastewater outlet and pure
Water out, the housing, the reverse-osmosis membrane element and the waterway converter enclose jointly to be set to form the connection raw water inlet
Raw water flow path, the first sleeve for connecting the pure water outlet is convexly equipped with the inside of the lid, and the connection waste water goes out
Second casing of mouth, second casing are surrounded on the outside of the first sleeve；
The reverse-osmosis membrane element includes membrane component body and the first end cap, and the membrane component body interior is equipped with its length
The waste line and pure water pipeline of direction extension are spent, the membrane component body side is equipped with connection raw water flow path and pure water pipeline
Pure water water inlet, and the waste water water inlet of the connection raw water flow path and waste line, first end cap are covered on described
One end of membrane component body, the first end is covered with the waste water discharge opening for connecting the waste line, and connects described pure
The pure water connector of water lines；
The waterway converter is fastened on first end cap, and equipped with the inner cavity for connecting the waste water discharge opening, it is described
First sleeve sealing is socketed the pure water connector, and second bobbin seal is socketed the waterway converter.
Preferably, the pure water connector with the junction of the first sleeve offers at least one first annular groove,
The first sealing ring is embedded with the first annular groove.
Preferably, the waterway converter with the junction of the first sleeve offers at least one second annular
Groove, is embedded with the second sealing ring in second annular groove
Preferably, second sleeve ring is coaxially disposed around with the first sleeve.
Preferably, the membrane component body includes：Central tube group, the central tube group include pure water pipe and it is multiple mutually
Spaced waste pipe, multiple waste pipes are arranged around the pure water pipe, and the pure water is formed in the pure water pipe
Pipeline, the waste pipe is interior to form the waste line；
Multiple reverse osmosis membrane groups, each described reverse osmosis membrane group are respectively provided with inside the central tube group
A part and the Part II outside the central tube group, each waste pipe and the pure water pipe are described anti-by one
The Part I of infiltration diaphragm group separates；The Part II of multiple reverse osmosis membrane groups is centered around the week of the central tube group
Enclose to form multi-layer film structure；
Two sealant layers, two sealant layers are respectively arranged at the multiple reverse osmosis membrane group at the center
Both ends on pipe group length direction, and it is bonding with the multiple reverse osmosis membrane group.
Preferably, each described reverse osmosis membrane group includes reverse osmosis membrane, water inlet flow-guiding screen and pure water flow-guiding screen；
The just inward-facing doubling of the reverse osmosis membrane of each reverse osmosis membrane group is set, multiple reverse osmosis membranes
The Part II of piece group overlaps and circumferentially winds the central tube group jointly；Between same reverse osmosis membrane front interlayer
Form water inlet flow channel；Production water flow passage is formed between the reverse side interlayer of the two neighboring reverse osmosis membrane；The water inlet flow-guiding screen
It is located at the waste pipe in water inlet flow channel, the pure water flow-guiding screen is in production water flow passage.
Preferably, the reverse-osmosis membrane element further includes the second end cap, and second end cap is covered on the membrane component sheet
The other end of body, first end cap and the second end cap are simultaneously adhesively fixed with the corresponding sealant layer respectively.
Preferably, the inner side of first end cap, which corresponds to multiple waste pipes and is convexly equipped with multiple first, stretches into pipe, described
First, which stretches into pipe, stretches in the corresponding waste pipe, and connects the waste water discharge opening and the corresponding waste pipe；
The position that the inner side of first end cap corresponds to the pure water pipe is convexly equipped with second and stretches into pipe, and described second stretches into pipe
Stretch in the pure water pipe, and connect the pure water connector and the pure water pipe.
Preferably, the first positioning protrusion of the multiple waste pipes of multiple correspondences is convexly equipped with the inside of second end cap,
First positioning protrusion is stretched in the corresponding waste pipe；
The position that the inner side of second end cap corresponds to the pure water pipe is convexly equipped with the second positioning protrusion, second positioning
Protrusion is stretched in the pure water pipe.
Preferably, the cross section of the pure water pipe is set in N sides shape, and wherein N is greater than or equal to 3, and correspondence has N number of side
Surface, is equipped with the pure water water inlet on each side surface；
The quantity of the waste pipe matches with the side surface quantity, and each described waste pipe is corresponded to described in one
The position of side surface is set.
Preferably, the circular in cross-section of the pure water pipe is set, and the perisporium of the pure water pipe is divided into more along its circumferential direction
A side plate bending, is equipped with the pure water water inlet in each side plate bending；
The quantity of the waste pipe and the quantity of the side plate bending match, and each waste pipe is corresponded to described in one
The position of side plate bending is set.
Preferably, waste water diversion trench is offered on the perisporium of the waste pipe, the waste water water inlet is arranged on the waste water
In diversion trench.
The present invention also proposes a kind of anti-penetration water purifier, which includes filter core, and the filter core includes housing
And reverse-osmosis membrane element and waterway converter in the housing are placed in,
The housing includes the shell and lid that mutually fasten, and the lid is provided with raw water inlet, wastewater outlet and pure
Water out, the housing, the reverse-osmosis membrane element and the waterway converter enclose jointly to be set to form the connection raw water inlet
Raw water flow path, the first sleeve for connecting the pure water outlet is convexly equipped with the inside of the lid, and the connection waste water goes out
Second casing of mouth, second casing are surrounded on the outside of the first sleeve；
The reverse-osmosis membrane element includes membrane component body and the first end cap, and the membrane component body interior is equipped with its length
The waste line and pure water pipeline of direction extension are spent, the membrane component body side is equipped with connection raw water flow path and pure water pipeline
Pure water water inlet, and the waste water water inlet of the connection raw water flow path and waste line, first end cap are covered on described
One end of membrane component body, the first end is covered with the waste water discharge opening for connecting the waste line, and connects described pure
The pure water connector of water lines；
The waterway converter is fastened on first end cap, and equipped with the inner cavity for connecting the waste water discharge opening, it is described
First sleeve sealing is socketed the pure water connector, and second bobbin seal is socketed the waterway converter.
Technical solution of the present invention is surrounded with reverse-osmosis membrane element and waterway converter using the inner wall of housing and connects raw water and enter
The raw water runner of mouth, and be convexly equipped with the inside of lid mutually around the first sleeve and the second casing set, pass through first sleeve
With the second casing corresponding pure water connector and waterway converter being socketed on end cap respectively so that first sleeve, pure water connector, pure
Water lines are collectively forming the pure water water route of pure water outlet on connection end cap, and the second casing, waterway converter and waste line
The waste water water route of wastewater outlet on connection end cap is collectively forming, is prolonged so as to form three in filter core on filter core length direction
The water route stretched so that it is more reasonable that the water route in filter core is set, and the raw water in raw water runner is by the sidepiece of reverse-osmosis membrane element
Into and filtered, the water filtration of filter core is more efficient, and impurity is not easy to precipitate, and the service life of filter core is longer.We at the same time
The seal isolation in three water routes can be achieved by the socket of lid and reverse-osmosis membrane element and waterway converter for case so that filter
The waterway seal of core is simple in structure, also simplify the assembling structure of filter core.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Structure according to these attached drawings obtains other attached drawings.
Fig. 1 is the decomposition texture schematic diagram of one embodiment of filter core of the present invention；
Fig. 2 is the sectional view of filter core shown in Fig. 1；
Fig. 3 is the structure diagram of reverse-osmosis membrane element in Fig. 1；
Fig. 4 is sectional view of the reverse-osmosis membrane element along A-B-C in Fig. 3；
Fig. 5 is the structure diagram of the lid of filter core in Fig. 1；
Fig. 6 is the top view of reverse-osmosis membrane element part-structure in Fig. 1；
The cross section structure schematic diagram of reverse-osmosis membrane element part-structure shown in Fig. 7 bitmaps 6；
Fig. 8 is the central tube group structure diagram of filter core in Fig. 1.
Drawing reference numeral explanation：
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining the relative position relation under a certain particular pose (as shown in drawings) between each component, motion conditions etc., if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should be interpreted broadly,
For example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can be mechanically connect or
It is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements or two
The interaction relationship of a element, unless otherwise restricted clearly.For the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for description purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution
Conflicting or can not realize when occur will be understood that the combination of this technical solution is not present, also not in the guarantor of application claims
Within the scope of shield.
The present invention proposes a kind of filter core 100.
Incorporated by reference to referring to Figures 1 and 2, in embodiments of the present invention, which includes housing and is placed in housing
Reverse-osmosis membrane element 10 and waterway converter 30, the housing includes the shell 70 and lid 50 that mutually fasten, and lid 50 is set
It is equipped with raw water inlet 51, wastewater outlet 55 and pure water outlet 53, shown housing, reverse-osmosis membrane element 10 and waterway converter 30
The raw water flow path 12 for setting and forming connection raw water inlet 51 is enclosed jointly, and the inner side of lid 50 is convexly equipped with the first of connection pure water outlet 53
Casing 57, and the second casing 59 of connection wastewater outlet 55, the second casing 59 are surrounded on the outside of first sleeve 57.It is reverse osmosis
Membrane component 10 includes membrane component body (not indicating) and the first end cap 15, and membrane component body interior is equipped with to be extended in its length direction
Waste line 113a and pure water pipeline 111a, membrane component body side is equipped with connection raw water flow path 12 and pure water pipeline 111a
Pure water water inlet 111b, and the waste water water inlet 113b of connection raw water flow path 12 and waste line 113a, the first end cap 15 cover
Arranged on one end of membrane component body, the first end cap 15 is equipped with the waste water discharge opening 153 of connection waste line 113a, and connects pure
The pure water connector 151 of water lines 111a.Waterway converter 30 is fastened on the first end cap 15, and equipped with connection waste water discharge opening 153
Inner cavity, the sealing socket of first sleeve 57 pure water connector 151 is so that pure water pipeline 111a connects the pure water outlet 53, second set
59 sealing shroud of pipe connects waterway converter 30 so that waste line 113a connects wastewater outlet 55.
The present embodiment shell 70, lid 50 can be plastic materials, and are made up of injection molding manner production.Wherein lid 50
On the also shaping in conjunction in 50 injection molding process of lid, and the present embodiment of 57 and second casing 59 of first sleeve
Second casing 59 is coaxially disposed (ginseng Fig. 5) with first sleeve 57, such lid 50 and reverse-osmosis membrane element 10 and waterway converter
30 socket more convenient operation, while draining flow velocity is also more uniform.Certain shell 70 and lid 50 can also be metal materials, such as
Food-grade stainless steel material.Shell 70 can threadedly revolve with lid 50 and form closed containing cavity, reverse-osmosis membrane element 10
It is respectively positioned on waterway converter 30 in closed containing cavity.Waterway converter 30 can also be plastic material and be produced by injection molding manner
Complete, hollow cylinder-shaped of waterway converter 30, and its lumen openings passes through reduction, and be open larger one end
The first end cap 15 is covered at, and the outer end of the pure water connector 151 on the first end cap 15 and the opening of waterway converter 30 are smaller
One end it is concordant, 57 part of first sleeve is stretched into the inner cavity of waterway converter 30 and is socketed on pure water connector 151, first sleeve
The outer wall of 57 inner wall and pure water connector 151 seals against, and the inner wall of the second casing 59 is abutted with the outer wall of waterway converter 30,
That is, first sleeve 57 forms the pure water row for connecting pure water pipeline 111a and pure water outlet 53 with the internal cavity of pure water connector 151
Go out passage, the waste water row formed with connection waste line 113a and wastewater outlet 55 between the second casing 59 and pure water connector 151
Go out passage.
Technical solution of the present invention is enclosed jointly by using the inner wall of housing with reverse-osmosis membrane element 10 and waterway converter 30
If forming the raw water runner of connection raw water inlet 51, and it is convexly equipped with mutually around 57 He of first sleeve set in the inner side of lid 50
Second casing 59, by 57 and second casing 59 of first sleeve, corresponding sealing is socketed on 151 He of pure water connector on end cap respectively
Waterway converter 30 so that first sleeve 57, pure water connector 151, pure water pipeline 111a are collectively forming pure water on connection lid 50
The pure water water route of outlet 53, and the second casing 59, waterway converter 30 and waste line 113a are collectively forming connection lid 50
The waste water water route of upper wastewater outlet 55, so as to form three water extended on 100 length direction of filter core in filter core 100
Road so that it is more reasonable that water route in filter core 100 is set, and the raw water in raw water runner by reverse-osmosis membrane element 10 sidepiece into
Enter membrane component body and filtered, the water filtration of filter core 100 is more efficient, and impurity is not easy to precipitate, the service life of filter core 100
It is longer.Three water can be achieved by the socket of lid 50 and reverse-osmosis membrane element 10 and waterway converter 30 in this programme at the same time
The seal isolation on road so that the waterway seal of filter core 100 is simple in structure, also simplify the assembling structure of filter core 100.
In order to further lift the sealing performance in 100 water route of filter core of the present invention, the present embodiment pure water connector 151 with
The junction of first sleeve 57 offers at least one first annular groove 152, and the first sealing ring is embedded with first annular groove 152
154.First sealing ring 154 can use rubber material, pass through the first sealing ring of elastic deformation 154 of the first sealing ring 154
Tightly it is bonded with the outer wall of first sleeve 57 and the outer wall of pure water connector 151, and then by pure water water route and waste water water route
Isolated, sealing structure is simple and reliable.
The waterway converter 30 offers at least one second annular groove with the junction of the first sleeve 57
302, the second sealing ring 304 is embedded with the second annular groove 302.The effect of second sealing ring 304 and effect can be with analogies first
Sealing ring 154, details are not described herein.
Include central tube group 11, multiple reverse osmosis membrane groups 13 and two incorporated by reference to reference to Fig. 3 to Fig. 8, membrane component body
Sealant layer 14, the central tube group 11 includes the waste pipe 113 of pure water pipe 111 and multiple spaced settings, multiple useless
Water pipe 113 is arranged around pure water pipe 111, and the pure water pipeline 111a is formed in pure water pipe 111, institute is formed in waste pipe 113
State waste line 113a.Each described reverse osmosis membrane group 13 is respectively provided with Part I inside central tube group 11 (not
Sign) and Part II (not indicating) positioned at central tube group 11 outside, each waste pipe 113 and pure water pipe 111 by one instead
The Part I of infiltration diaphragm group 13 separates；The Part II of multiple reverse osmosis membrane groups 13 is centered around around central tube group 11
Form multi-layer film structure.Two sealant layers 14 are respectively arranged at multiple reverse osmosis membrane groups 13 in 11 length side of central tube group
Upward both ends, and it is bonding with multiple reverse osmosis membrane groups 13.
The reverse-osmosis membrane element 10 further includes the second end cap 17, and the second end cap 17 is covered on the another of membrane component body
End, the first end cap 15 and the second end cap 17 are simultaneously adhesively fixed with corresponding sealant layer 14 respectively
Each waste pipe 113 of reverse-osmosis membrane element 10 corresponds to a reverse osmosis membrane group 13, multiple so as to realize
Film roll is bent, can increase runner quantity, is conducive to improve raw water flux, and solve 131 long osmotic pressure of reverse osmosis membrane not
The problem of foot causes part reverse osmosis membrane 131 and not up to filters purpose；Reverse osmosis is sealed respectively by two sealant layers 14
The both ends of permeable membrane piece group 13 are (it should be noted that sealant layer 14 cannot block pure water pipe 111 or the inner tube of waste pipe 113
Mouthful), water is prevented from the outflow of the both ends of reverse osmosis membrane group 13 or is flowed into, and can form multiple 13 outside avris of reverse osmosis membrane group
Water is flowed into, middle waste pipe 113 discharges the raw water water route of waste water.
In use, raw water is intake by effluent, runner narrows above-mentioned reverse-osmosis membrane element 10, and water inlet area reduces, and may be used also
To use the water inlet flow-guiding screen 133 of low thickness in reverse osmosis membrane group 13, continue to reduce water inlet area, and flow also increases
It is long, therefore the time that raw water is contacted with reverse osmosis membrane 131 can be increased, improve the raw water rate of recovery；Meanwhile because reduce original
Water is intake area, can increase reverse osmosis membrane group 13112 infiltration membrane surface water velocity (when certain into water flux,
It is V=Q/S into the relation between water flux Q and water velocity V；Wherein, S is water inlet area, specifically, S=Ld；L is water inlet
21 diaphragm lengths are held, d is section thickness, and effluent mainly reduces L, in addition reduced naturally with small water inlet flow-guiding screen 133
Thickness d), it is thus possible to reduce 131 surface concentration polarization of reverse osmosis membrane, reduce the pollution speed of the reverse-osmosis membrane element 1010
Degree, is conducive to improve the raw water rate of recovery, so as to improve the waste problem of raw water, reaches the effect for saving raw water.
Each described reverse osmosis membrane group 13 includes reverse osmosis membrane 131, water inlet flow-guiding screen 133 and pure water flow-guiding screen
135；
The just inward-facing doubling of the reverse osmosis membrane 131 of each reverse osmosis membrane group 13 is set, multiple described anti-
The Part II of infiltration diaphragm group 13 overlaps and circumferentially winds the central tube group 11 jointly；The same reverse osmosis membrane
Water inlet flow channel is formed between 131 front interlayers；Production current are formed between the reverse side interlayer of the two neighboring reverse osmosis membrane 131
Road；The water inlet flow-guiding screen 133 and the waste pipe 113 are located in water inlet flow channel, and the pure water flow-guiding screen 135 is positioned at production current
In road.
Each reverse osmosis membrane group 13 includes reverse osmosis membrane 131, water inlet flow-guiding screen 133 and pure water flow-guiding screen 135；
Water inlet flow-guiding screen 133 and pure water flow-guiding screen 135 can be separately positioned on the tow sides of reverse osmosis membrane 131, and raw water is in reverse osmosis
The front flowing of permeable membrane piece 131, and under the action of osmotic pressure, from reverse osmosis membrane 131 just towards reverse osmosis membrane 131
Reverse side infiltration pure water, pure water produce reverse osmosis membrane 131 reverse side and under the guide functions of pure water flow-guiding screen 135 to pure
Water pipe 111 flows.Wherein, reverse osmosis membrane 131 can be abutted by doubling front with front, and reverse side is abutted with reverse side,
Unnecessary contact is avoided, so as to prevent pure water to be contaminated；During practical operation, when doubling of reverse osmosis membrane 131 can be just
Inward-facing doubling can also be the inside doubling of reverse side, and Rational choice is carried out according to actual conditions.In the present embodiment, it is each
The just inward-facing doubling of the reverse osmosis membrane 131 of a reverse osmosis membrane group 13 is set, the Part II of multiple reverse osmosis membrane groups 13
Overlap and circumferentially wind central tube group 11 jointly；Water inlet flow channel is formed between same 131 front interlayer of reverse osmosis membrane；It is adjacent
Production water flow passage is formed between the reverse side interlayer of two reverse osmosis membranes 131；Water inlet flow-guiding screen 133 and waste pipe 113 are positioned at water inlet
In runner, pure water flow-guiding screen 135 is in production water flow passage.At this time, between water inlet flow channel and production water flow passage independently of each other, and thoroughly
Isolation, can effectively ensure that the water inlet flow-guiding screen 133 of each reverse osmosis membrane group 13 is not anti-with pure water pipe 111 and others
Permeate the reverse side contact of the reverse osmosis membrane 131 of diaphragm group 13；The pure water flow-guiding screen 135 of each reverse osmosis membrane group 13 not with
The front face of the reverse osmosis membrane 131 of waste pipe 113 and other reverse osmosis membrane groups 13；Raw water only flows in water inlet flow channel
Dynamic finally to be discharged by waste pipe 113, pure water only flows in water flow passage is produced finally is discharged by pure water pipe 111, so as to avoid pure water
Pollution, ensures clean-up effect.In order to smoothly export pure water, in the present embodiment, production water flow passage can be set to remove and leaned on
The equal closing seam in other sides beyond the side of nearly pure water pipe 111, so that production water flow passage only has towards pure water pipe 111
Pure water outlet 53；The film bag that water flow passage forms three side seals, one side opening is produced at this time, and film sack is limited against pure water pipe 111
Determining the pure water in film bag can only flow towards pure water pipe 111；Raw water produces pure water, pure water shape after the effect of reverse osmosis membrane 131
Into in film bag and flowing to sack into pure water pipe 111.During practical operation, when can operate by wound membrane realize close
Envelope, while the sealing station at both ends can also carry out second using two sealant layers 14 and seal, and then realize preferably close
Seal effect.
It refer to Fig. 3, the both ends difference of the pure water pipe 111 of membrane component body, waste pipe 113 and reverse osmosis membrane group 13
By the clamping of the first end cap 15 and the second end cap 17 to be positioned.At the same time in order to simplify water route, only in above-mentioned first end cap
Pure water connector 151 and waste water discharge opening 153 are set on 15, it is necessary to explanation, quantity and the membrane component sheet of waste water discharge opening 153
113 quantity of waste pipe of body is consistent, namely the waste pipe that each waste water discharge opening 153 on end cap is connected with a waste pipe 113
Road 113a, the pure water connector 151 on the first end cap 15 connect setting with the pure water pipe 111 of membrane component body.In actual use,
What reverse-osmosis membrane element 10 was usually placed vertically, at this time, corresponding pure water pipe 111 and multiple waste pipes 113 are also along vertical side
To putting, on the top, the second end cap 17 is blocked the first end cap 15 in lower section, the lower port of setting pure water pipe 111, multiple waste water
The lower port of pipe 113 is blocked, and collects pure water and waste water, uniform fluid flow from upper end, and be easy to the design of pipeline.
Refer to Fig. 3 and Fig. 5, in order to realize docking for waste pipe 113 and wastewater effluent mouth, first end cap 15 it is interior
Side corresponds to the position of waste pipe 113 and quantity be convexly equipped with it is multiple connect the first of the waste water discharge opening 153 and stretch into pipe 155,
One, which stretches into pipe 155, stretches into corresponding waste pipe 113 to connect waste water discharge opening 153 and the waste pipe 113；Specifically, first
The waste line 113a connected in waste pipe 113 with waste pipe 113 is stretched into the one end for stretching into pipe 155, and first stretches into the another of pipe 155
One end connects waste water discharge opening 153, reliably realizes the connection in water route, while first stretches into pipe 155 and also have positioning function,
The first end cap 15 and the alignment of central tube group 11 can be aided in, improves the structural compactness and reliability of reverse-osmosis membrane element 10.
In order to realize docking for pure water pipe 111 and pure water pipeline 111a, the position projection of the inner side pure water pipe 111 of the first end cap 15
Have connection pure water outlet second stretches into pipe 157, second stretch into pipe 157 stretch into the pure water pipeline 111a of pure water pipe 111 with
Connect the pure water pipeline 111a of pure water outlet 53 and pure water pipe 111.Second stretches into the effect of pipe 157 and effect can be with analogy first
Pipe 155 is stretched into, details are not described herein.
The second end cap 17 is installed for convenience；Referring to Fig. 4, in the present embodiment, the inner side of second end cap 17 is right
The position of the waste pipe 113 and quantity is answered to be convexly equipped with multiple first positioning protrusion 171, first positioning protrusion 171 stretches into
In the corresponding waste pipe 113；The position that the inner side of second end cap 17 corresponds to the pure water pipe 111 is convexly equipped with the second positioning
Protrusion 173, second positioning protrusion 173 is stretched into the pure water pipe 111.Pass through the first positioning protrusion 171 and waste pipe 113
Cooperation, the second positioning protrusion 173 coordinate with pure water pipe 111, can simplify the alignment function of the second end cap 17, while central tube group
11 are connected with the second end cap 17 by the first positioning protrusion 171 and the second positioning protrusion 173, can further improve whole reverse osmosis
The structural compactness and reliability of membrane element 10.
The quantity of the waste pipe 113 is N number of, and N is greater than or equal to 3；The cross section of pure water pipe 111 is set in N sides shape, and
Correspondence has N number of side surface, and the pure water water inlet 111b is equipped with each side surface；Each described waste pipe
113 positions for corresponding to a side surface are set.The side of each described waste pipe 113 towards the side surface can be with this time
It is plane, facilitates reverse osmosis membrane group 13 to stretch into and wind.Specifically, in the present embodiment, the quantity of N=5, i.e. waste pipe 113
For 5, the cross section of pure water pipe 111 is substantially set in regular pentagon, and correspondence has five side surfaces, each described waste pipe
113 positions for corresponding to a side surface are set.This setup can ensure that each waste pipe 113 individually corresponds to pure water
One side surface 212 of pipe 111, carry out wound membrane operation when from each other will not be interfering with each other, instant rolled membrane operations.In order to ensure
The pure water that the corresponding reverse osmosis membrane group 13 of each waste pipe 113 is produced can be timely collected into pure water pipe 111, excellent
Choosing sets and is interval with multiple pure water water inlet 111b, and multiple pure water water inlets on each side surface
111b uniformly arranges along the length direction of the pure water pipe 111, thus, the pure water of each position can quickly flow to compared with
In near pure water water inlet 111b；In order to exclude waste water in time, multiple institutes are interval with each waste pipe 113
The internal path that waste water water inlet 113b enters waste pipe 113 is stated, and multiple waste water water inlet 113b are along the waste pipe
113 length direction is uniformly arranged, and is ensured the waste water of each position and can quickly be flow to nearer waste water water inlet
Enter the internal path of waste pipe 113 in 113b.
In another embodiment of the invention, the circular in cross-section of the pure water pipe 111 is set, the pure water pipe 111
Perisporium be divided into multiple side plate bendings (not shown) along its circumferentially corresponding multiple described waste pipe 113, in each side plate bending
It is equipped with the pure water water inlet 111b；The position that each waste pipe 113 corresponds to a side plate bending is set.It is this to set
The mode of putting can ensure that each waste pipe 113 individually corresponds to a side plate bending of pure water pipe 111, when carrying out wound membrane operation mutually it
Between will not be interfering with each other, instant rolled membrane operations.Produced to ensure the corresponding reverse osmosis membrane group 13 of each waste pipe 113
Pure water can be timely collected into pure water pipe 111, be preferably provided with being interval with each side plate bending multiple described
Pure water water inlet 111b, and multiple pure water water inlet 111b uniformly arrange along the length direction of the pure water pipe 111, by
This, the pure water of each position can be quickly flow in nearer pure water water inlet 111b；In order to exclude to give up in time
Water, the inside that multiple waste water water inlet 113b into waste pipe 113 are interval with each waste pipe 113 lead to
Road, and multiple waste water water inlet 113b uniformly arrange along the length direction of the waste pipe 113, ensure the useless of each position
Water can quickly flow in nearer waste water water inlet 113b the internal path for entering waste pipe 113.
Operated in order to facilitate wound membrane, the pure water pipe 111 and multiple 113 common combinations of the waste pipe can be set to be formed
Cylindrical；During wound membrane, than more uniform when central tube group 11 rotates, it is not easy to appearance that is crooked, while rolling finished product occurs
Easy to roll being installed in the housing of spiral wound reverse-osmosis membrane element 10 of finished product, spiral wound can be also allowed for than more uniform
The end cap of reverse-osmosis membrane element 10 and the alignment and sealing for rolling finished product.
Waste water diversion trench is offered on the perisporium of the waste pipe 113, the waste water water inlet 113b is arranged on the waste water
In diversion trench.The specific of waste water diversion trench sets position, shape and quantity, can choose as the case may be, in the present embodiment
In, multiple waste water diversion trenches circumferentially extended along waste pipe 113 are interval with the waste pipe 113, in each waste water diversion trench
A waste water water inlet 113b is designed with, waste water diversion trench has the effect catchmented with water conservancy diversion, and waste water can be helped more accurate fast
Speed enters in waste pipe 113.The waste water diversion trench of other shapes can also realize the effect catchmented with water conservancy diversion, do not do herein into
One step limits
The present invention also proposes a kind of water purifier, which includes filter core 100, and the concrete structure of the filter core 100 is with reference to upper
Embodiment is stated, since this water purifier employs whole technical solutions of above-mentioned all embodiments, at least there is above-mentioned implementation
All beneficial effects caused by the technical solution of example, this is no longer going to repeat them.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (13)
1. a kind of reverse osmosis membrane filter element, it is characterised in that including housing and the reverse-osmosis membrane element being placed in the housing
And waterway converter,
The housing includes the shell and lid mutually fastened, and the lid is provided with raw water inlet, wastewater outlet and pure water and goes out
Mouthful, the housing, the reverse-osmosis membrane element and the waterway converter enclose the original for setting and being formed and connecting the raw water inlet jointly
Current road, is convexly equipped with the first sleeve for connecting the pure water outlet on the inside of the lid, and the connection wastewater outlet
Second casing, second casing are surrounded on the outside of the first sleeve；
The reverse-osmosis membrane element includes membrane component body and the first end cap, and the membrane component body interior is equipped with its length side
To the waste line and pure water pipeline of extension, described this body sidewall of membrane component is equipped with connection raw water flow path and the pure water of pure water pipeline
Water inlet, and the waste water water inlet of the connection raw water flow path and waste line, first end cap are covered on the membrane element
One end of part body, the first end are covered with the waste water discharge opening for connecting the waste line, and the connection pure water pipe
The pure water connector on road；
The waterway converter is fastened on first end cap, and is equipped with the inner cavity for connecting the waste water discharge opening, and described first
Bobbin seal is socketed the pure water connector, and second bobbin seal is socketed the waterway converter.
2. filter core as claimed in claim 1, it is characterised in that the pure water connector is opened with the junction of the first sleeve
Equipped with least one first annular groove, the first sealing ring is embedded with the first annular groove.
3. filter core as claimed in claim 1, it is characterised in that the junction with the first sleeve of the waterway converter
At least one second annular groove is offered, the second sealing ring is embedded with second annular groove.
4. filter core as claimed in claim 1, it is characterised in that second casing is coaxially disposed with the first sleeve.
5. the filter core as described in any one in Claims 1-4, it is characterised in that the membrane component body includes：
Central tube group, the central tube group include the waste pipe of pure water pipe and multiple spaced settings, multiple waste water
Pipe ring is arranged around the pure water pipe, and the pure water pipeline is formed in the pure water pipe, the waste pipe is formed in the waste pipe
Road；
Multiple reverse osmosis membrane groups, each described reverse osmosis membrane group are respectively provided with first inside the central tube group
Divide and the Part II outside the central tube group, each waste pipe and the pure water pipe are described reverse osmosis by one
The Part I of diaphragm group separates；The Part II of multiple reverse osmosis membrane groups is centered around surrounding's shape of the central tube group
Into multi-layer film structure；
And two sealant layers, two sealant layers are respectively arranged at the multiple reverse osmosis membrane group in the central tube
Both ends on group length direction, and it is bonding with the multiple reverse osmosis membrane group.
6. filter core as claimed in claim 5, it is characterised in that each described reverse osmosis membrane group 13 includes reverse osmosis membrane
Piece, water inlet flow-guiding screen and pure water flow-guiding screen；
The just inward-facing doubling of the reverse osmosis membrane of each reverse osmosis membrane group is set, multiple reverse osmosis membrane groups
Part II overlap and circumferentially wind the central tube group jointly；Formed between same reverse osmosis membrane front interlayer
Water inlet flow channel；Production water flow passage is formed between the reverse side interlayer of the two neighboring reverse osmosis membrane；The water inlet flow-guiding screen and institute
State waste pipe to be located in water inlet flow channel, the pure water flow-guiding screen is in production water flow passage.
7. filter core as claimed in claim 5, it is characterised in that the reverse-osmosis membrane element further includes the second end cap, and described
Two end caps are covered on the other end of the membrane component body, first end cap and the second end cap and respectively with it is corresponding described close
Adhesive layer is adhesively fixed.
8. filter core as claimed in claim 5, it is characterised in that it is convex that the inner side of first end cap corresponds to multiple waste pipes
Pipe is stretched into equipped with multiple first, described first, which stretches into pipe, stretches in the corresponding waste pipe, and connects the waste water discharge
Mouth and the corresponding waste pipe；
The position that the inner side of first end cap corresponds to the pure water pipe is convexly equipped with second and stretches into pipe, and described second, which stretches into pipe, stretches into
Into the pure water pipe, and connect the pure water connector and the pure water pipe.
9. filter core as claimed in claim 7, it is characterised in that the multiple institutes of multiple correspondences are convexly equipped with the inside of second end cap
The first positioning protrusion of waste pipe is stated, first positioning protrusion is stretched in the corresponding waste pipe；
The position that the inner side of second end cap corresponds to the pure water pipe is convexly equipped with the second positioning protrusion, second positioning protrusion
Stretch in the pure water pipe.
10. filter core as claimed in claim 5, it is characterised in that the cross section of the pure water pipe is set in N sides shape, and wherein N is big
In or equal to 3, and correspondence has N number of side surface, and the pure water water inlet is equipped with each side surface；
The quantity of the waste pipe matches with the side surface quantity, and each described waste pipe is towards a side table
Face is set.
11. filter core as claimed in claim 5, it is characterised in that the circular in cross-section of the pure water pipe is set, the pure water
The perisporium of pipe is divided into multiple side plate bendings along its circumferential direction, and the pure water water inlet is equipped with each side plate bending；
The quantity of the waste pipe and the quantity of the side plate bending match, and each waste pipe is towards a cambered surface
Section is set.
12. the filter core as described in claim 10 or 11, it is characterised in that waste water water conservancy diversion is offered on the perisporium of the waste pipe
Groove, the waste water water inlet are arranged in the waste water diversion trench.
13. a kind of anti-penetration water purifier, it is characterised in that including the filter core as described in claim 1 to 12 any one.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951781.1A CN107986393B (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
| CN202110011468.0A CN112755786A (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
| CN202110011621.XA CN112811517A (en) | 2016-10-26 | 2016-10-26 | Reverse osmosis membrane element, filter element and reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951781.1A CN107986393B (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110011621.XA Division CN112811517A (en) | 2016-10-26 | 2016-10-26 | Reverse osmosis membrane element, filter element and reverse osmosis water purifier |
| CN202110011468.0A Division CN112755786A (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107986393A true CN107986393A (en) | 2018-05-04 |
| CN107986393B CN107986393B (en) | 2021-01-26 |
Family
ID=62029553
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610951781.1A Active CN107986393B (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
| CN202110011621.XA Withdrawn CN112811517A (en) | 2016-10-26 | 2016-10-26 | Reverse osmosis membrane element, filter element and reverse osmosis water purifier |
| CN202110011468.0A Pending CN112755786A (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110011621.XA Withdrawn CN112811517A (en) | 2016-10-26 | 2016-10-26 | Reverse osmosis membrane element, filter element and reverse osmosis water purifier |
| CN202110011468.0A Pending CN112755786A (en) | 2016-10-26 | 2016-10-26 | Filter core and reverse osmosis water purifier |
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| Country | Link |
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| CN (3) | CN107986393B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115875A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element |
| CN111115879A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN111115877A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element |
| CN111115867A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN111115866A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115876A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115868A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Flow passage structure of composite filter element assembly |
| CN111115870A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115864A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115878A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN111115869A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115874A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
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| CN203904090U (en) * | 2014-05-27 | 2014-10-29 | 佛山市顺德区美的饮水机制造有限公司 | Compound reverse osmosis filter element and purifier adopting same |
| CN104258733A (en) * | 2014-07-02 | 2015-01-07 | 深圳市诚德来实业有限公司 | A water purifier and a reverse osmosis membrane element thereof |
| CN105944571B (en) * | 2016-06-24 | 2019-03-05 | 佛山市顺德区盈沣泰环保科技有限公司 | Lateral flow type filter for purifying water |
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- 2016-10-26 CN CN201610951781.1A patent/CN107986393B/en active Active
- 2016-10-26 CN CN202110011621.XA patent/CN112811517A/en not_active Withdrawn
- 2016-10-26 CN CN202110011468.0A patent/CN112755786A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204469553U (en) * | 2015-02-05 | 2015-07-15 | 佛山市麦克罗美的滤芯设备制造有限公司 | Novel RO membrane filtration core body and filter thereof |
| CN205381989U (en) * | 2016-01-29 | 2016-07-13 | 佛山市麦克罗美的滤芯设备制造有限公司 | High water conservation reverse osmosis membrane side flow structure |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115875A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element |
| CN111115879A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN111115877A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element |
| CN111115867A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN111115866A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115876A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115868A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Flow passage structure of composite filter element assembly |
| CN111115870A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115864A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115878A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN111115869A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115874A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112755786A (en) | 2021-05-07 |
| CN112811517A (en) | 2021-05-18 |
| CN107986393B (en) | 2021-01-26 |
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