CN106110894A - Spiral wound reverse-osmosis membrane element, filter element and anti-penetration water purifier - Google Patents
Spiral wound reverse-osmosis membrane element, filter element and anti-penetration water purifier Download PDFInfo
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- CN106110894A CN106110894A CN201610743900.4A CN201610743900A CN106110894A CN 106110894 A CN106110894 A CN 106110894A CN 201610743900 A CN201610743900 A CN 201610743900A CN 106110894 A CN106110894 A CN 106110894A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
- B01D63/101—Spiral winding
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
Abstract
The open a kind of spiral wound reverse-osmosis membrane element of the present invention, filter element and anti-penetration water purifier, wherein, this spiral wound reverse-osmosis membrane element includes: multipage reverse osmosis diaphragm group, central canal group, the first end cap and the second end cap, central canal group includes DI and the waste pipe of multiple spaced setting, and multiple waste pipes are arranged around DI；Each reverse osmosis diaphragm group is respectively provided with to be positioned at Part I within central canal group and be positioned at the Part II outside central canal group, each waste pipe and DI and is separated by the Part I of a reverse osmosis diaphragm group；The Part II of multiple reverse osmosis diaphragm groups forms the plural layers assembly of the surrounding being centered around central canal group, and the first end cap and the second end cap are sheathed on central canal group and the two ends of multipage reverse osmosis diaphragm group respectively；First end cap or the second end cap correspondence central canal group arrange pure water outlet and waste water discharge opening.Technical solution of the present invention can improve former Water Sproading rate, it is achieved high water saving.
Description
Technical field
The present invention relates to reverse osmosis purified water technical field, particularly to a kind of spiral wound reverse-osmosis membrane element, filter element and
Anti-penetration water purifier.
Background technology
Spiral wound reverse-osmosis membrane element, also known as coiled reverse osmosis membrane element, is the common component in water technology, it
The alternately laminated multilamellar reverse osmosis on central canal selects film and water conservancy diversion with the central canal in multiple holes and volume to generally comprise one
Net.Central canal is connected by adapter with housing two ends.In use, former water enters housing from shell one end, at the work of pressure
The water that concentration is relatively low is formed, from central canal one or both ends after entrance central canal through the effect of reverse osmosis membrane by next part
Flowing out, this part water can referred to as produce water or pure water；Another part flows out from the housing other end, can be referred to as waste water, dense water.
This spiral wound reverse-osmosis membrane element of the prior art, after former water is treated, greatly as useless
Water is discharged, and only sub-fraction becomes pure water, and the spiral wound reverse-osmosis membrane element of the biggest flux, pure water amount is in the former water yield
In the ratio that accounts for relatively smaller, former Water Sproading rate is low, causes the waste of former water.
Summary of the invention
The main object of the present invention is to provide a kind of spiral wound reverse-osmosis membrane element, it is intended to improve former Water Sproading rate, real
Existing height water saving.
For achieving the above object, the spiral wound reverse-osmosis membrane element that the present invention proposes, including central canal group, multipage reverse osmosis
Permeable membrane sheet group, the first end cap and the second end cap；Described central canal group includes DI and the waste water of multiple spaced setting
Pipe, multiple described waste pipes are arranged around described DI, the perisporium of described DI offers and connects described DI
The pure water blasthole of inner passage, the perisporium of each described waste pipe offers inner passage useless connecting described waste pipe
Water blasthole；Each described reverse osmosis diaphragm group is respectively provided with the Part I being positioned within described central canal group and is positioned at described
Part II outside central canal group, each described waste pipe and described DI are by the first of a described reverse osmosis diaphragm group
Spaced-apart；The Part II of multiple described reverse osmosis diaphragm groups forms the plural layers of the surrounding being centered around described central canal group
Assembly；Described first end cap and the second end cap are sheathed on described central canal group and the two of described multipage reverse osmosis diaphragm group respectively
End, to position described central canal group and described reverse osmosis diaphragm group；Wherein, described first end cap is provided with waste water discharge opening
With pure water outlet；Or, described first end cap is provided with waste water discharge opening, and described second end cap is provided with pure water outlet；Described
Waste pipe connection waste water discharge opening is arranged, and described DI connects described pure water outlet and arranges.
Preferably, described waste water discharge opening and described pure water outlet may be contained within described first end cap.
Preferably, the inner side of described first end cap is coated with fluid sealant, described first end cap and described reverse osmosis diaphragm group
Between by fluid sealant adhesive seal；And/or, the inner side of described second end cap is coated with fluid sealant, described second end cap and institute
State between reverse osmosis diaphragm group by fluid sealant adhesive seal.
Preferably, the position of the corresponding described waste pipe in the inner side of described first end cap is convexly equipped with described in multiple connection with quantity
The first of waste water discharge opening stretches into pipe, and described first stretches in the described waste pipe that pipe stretches to correspondence, and connects described waste water
Outlet and corresponding described waste pipe；The position male of the corresponding described DI in the inner side of described first end cap is communicated with described
The second of pure water outlet stretches into pipe, and described second stretches into pipe stretches in described DI, and connects described pure water outlet
With described DI.
Preferably, position and the quantity of the corresponding described waste pipe in the inner side of described second end cap is convexly equipped with multiple first location
Projection, described first positioning convex stretches to arrange in corresponding described waste pipe；Described in the inner side correspondence of described second end cap
The position male of DI is provided with the second positioning convex, and described second positioning convex stretches to arrange in described DI.
Preferably, described DI is blocked away from one end mouth of pipe of described first end cap, so that pure water is to described
The pure water outlet flowing of one end cap；Described waste pipe is blocked away from one end mouth of pipe of described first end cap, so that waste water
Flow to the waste water discharge opening of described first end cap.
Preferably, each described reverse osmosis diaphragm group includes reverse osmosis diaphragm, water inlet flow-guiding screen and pure water flow-guiding screen；
The inside doubling in reverse osmosis diaphragm front of each described reverse osmosis diaphragm group is arranged, the second of multiple described reverse osmosis diaphragm groups
Part overlapping is also circumferentially wound around described central canal group jointly；Feed water flow is formed between the interlayer of same described reverse osmosis diaphragm front
Road；Formed between the reverse side interlayer of adjacent two described reverse osmosis diaphragms and produce water flow passage；Described water inlet flow-guiding screen and described waste water
Pipe is positioned in water inlet flow channel, and described pure water flow-guiding screen is positioned in product water flow passage.
Preferably, the described product water flow passage equal closing seam of other sides in addition to the side near described DI, with
The pure water that described product water flow passage is only had towards described DI exports.
Preferably, the quantity of described waste pipe is N number of, and N is more than or equal to 3；The cross section of described DI is that N limit shape sets
Put, and correspondence has N number of side surface, and each described side surface is equipped with described pure water blasthole；Each described waste pipe
The position of a corresponding described side surface is arranged.
Preferably, the circular in cross-section of described DI is arranged, and the perisporium of described DI is corresponding multiple along its circumference
Described waste pipe is divided into multiple cambered surface section, and each described cambered surface section is equipped with described pure water blasthole；Each described waste water
The position of the corresponding described cambered surface section of pipe is arranged.
Preferably, the perisporium of described waste pipe offering waste water guiding gutter, described waste water blasthole is located at described waste water
In guiding gutter.
Preferably, the perisporium of described DI offers first step down out along what described DI length direction extended
Mouthful.
Preferably, described first steps down is provided with the first reinforcement in opening, and the two ends of described first reinforcement connect respectively
Described first different two limit stepping down opening.
Preferably, the perisporium of described waste pipe offers second step down out along what described waste pipe length direction extended
Mouthful.
Preferably, described second steps down is provided with the second reinforcement in opening, and the two ends of described second reinforcement connect respectively
Described second different two limit stepping down opening.
The present invention also proposes a kind of filter element, and this filter element includes housing, waterway converter and spiral wound reverse-osmosis membrane element,
This spiral wound reverse-osmosis membrane element includes central canal group, multipage reverse osmosis diaphragm group, the first end cap and the second end cap；In described
Heart pipe group includes DI and the waste pipe of multiple spaced setting, and multiple described waste pipes are around described pure water bank of tubes
Cloth, the perisporium of described DI offers the pure water blasthole of the inner passage connecting described DI, each described waste water
The waste water blasthole of the inner passage connecting described waste pipe is offered on the perisporium of pipe；Each described reverse osmosis diaphragm group is equal
There is the Part I being positioned within described central canal group and be positioned at the Part II outside described central canal group, each described useless
Water pipe and described DI are separated by the Part I of a described reverse osmosis diaphragm group；The of multiple described reverse osmosis diaphragm groups
Two parts form the plural layers assembly of the surrounding being centered around described central canal group；Described first end cap and the second end cap overlap respectively
It is located at described central canal group and the two ends of described multipage reverse osmosis diaphragm group, with to described central canal group and described reverse osmosis diaphragm
Group positions；Wherein, described first end cap is provided with waste water discharge opening and pure water outlet；Or, described first end cap is provided with
Waste water discharge opening, described second end cap is provided with pure water outlet；Described waste pipe connection waste water discharge opening is arranged, described DI
Connect described pure water outlet to arrange.
The present invention also proposes a kind of anti-penetration water purifier, and this anti-penetration water purifier includes filter element；This filter element includes housing, water
Road transducer and spiral wound reverse-osmosis membrane element, this spiral wound reverse-osmosis membrane element includes central canal group, multipage reverse osmosis
Diaphragm group, the first end cap and the second end cap；Described central canal group includes DI and the waste pipe of multiple spaced setting,
Multiple described waste pipes are arranged around described DI, and the perisporium of described DI offers the inside connecting described DI
The pure water blasthole of passage, the waste water that the perisporium of each described waste pipe offers the inner passage connecting described waste pipe enters
Water hole；Each described reverse osmosis diaphragm group is respectively provided with the Part I being positioned within described central canal group and is positioned at described center
Part II outside pipe group, each described waste pipe and described DI are by the Part I of a described reverse osmosis diaphragm group
Separate；The Part II of multiple described reverse osmosis diaphragm groups forms the plural layers group of the surrounding being centered around described central canal group
Part；Described first end cap and the second end cap are sheathed on described central canal group and the two ends of described multipage reverse osmosis diaphragm group respectively,
So that described central canal group and described reverse osmosis diaphragm group are positioned；Wherein, described first end cap be provided with waste water discharge opening and
Pure water outlet；Or, described first end cap is provided with waste water discharge opening, and described second end cap is provided with pure water outlet；Described useless
Cross current waste water discharge opening is arranged, and described DI connects described pure water outlet and arranges.
The central canal group of the spiral wound reverse-osmosis membrane element of technical solution of the present invention includes DI and multiple around pure
The waste pipe of water pipe；Each waste pipe correspondence one page reverse osmosis diaphragm group of spiral wound reverse-osmosis membrane element, such that it is able to real
Existing multimembrane page batches, and can increase runner quantity, is conducive to improving former water flux, and solves diaphragm long osmotic pressure deficiency and cause
Part diaphragm does not reach to filter the problem of purpose, clamps central canal group and reverse osmosis respectively by the first end cap and the second end cap
The two ends of diaphragm group, to position, arrange pure water outlet and waste water discharge opening on the first end cap simultaneously, are formed and center
The runner of pipe group correspondence pipeline connection；After the first end cap and those reverse osmosis diaphragm group two ends of the second end cap seal, due to this
Central canal group is wound on center by multipage reverse osmosis diaphragm group, can form multipage reverse osmosis diaphragm group outer side edges effluent and enter
Water, middle waste pipe discharges the Yuan Shui water route of waste water；The spiral wound reverse-osmosis membrane element of the present invention, former water is entered by effluent
Water, runner narrows, and water inlet area reduces, it is also possible to use the water inlet flow-guiding screen of low thickness, continuation minimizing water inlet area, and flow process
The most significantly increase, therefore can increase the time of former water and reverse osmosis film contact, improve former Water Sproading rate；Meanwhile, because subtracting
Little former water water inlet area, can strengthen reverse osmosis membrane surface water velocity, it is thus possible to reduce reverse osmosis membrane surface concentration difference
Polarization, reduces the pollution speed of this spiral wound reverse-osmosis membrane element, is conducive to improving former Water Sproading rate, thus improves former water
Waste problem, it is achieved high water saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of spiral wound reverse-osmosis membrane element one embodiment of the present invention；
Fig. 2 is the profile of A-B-C-D along Fig. 1；
Fig. 3 is the enlarged drawing in Fig. 2 at E；
Fig. 4 is the enlarged drawing in Fig. 2 at F；
Fig. 5 is the structural representation of the first end cap of spiral wound reverse-osmosis membrane element shown in Fig. 1；
Fig. 6 is reverse osmosis diaphragm group and the wound membrane schematic diagram of central canal group of spiral wound reverse-osmosis membrane element shown in Fig. 1；
Fig. 7 is one page reverse osmosis diaphragm group and a waste pipe of spiral wound reverse-osmosis membrane element shown in Fig. 1 and one
The top view that DI coordinates；
Fig. 8 is the structural representation of the central canal group of spiral wound reverse-osmosis membrane element shown in Fig. 1；
Fig. 9 is the top view of central canal group shown in Fig. 8；
Figure 10 is the structural representation of the DI of spiral wound reverse-osmosis membrane element shown in Fig. 1；
Figure 11 is the structural representation of the waste pipe of spiral wound reverse-osmosis membrane element shown in Fig. 1；
Figure 12 is the central canal group top view of spiral wound another embodiment of reverse-osmosis membrane element of the present invention；
Figure 13 is the decomposition texture schematic diagram of filter element of the present invention.
Drawing reference numeral illustrates:
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that the embodiment of the present invention relates to directivity instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining under a certain particular pose (as shown in drawings) relative position relation between each parts,
Motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, the embodiment of the present invention relates to the description of " first ", " second " etc., then should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include at least one this spy
Levy.It addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Enough be embodied as basis, when the combination of technical scheme occur conflicting maybe cannot realize time will be understood that the knot of this technical scheme
Close and do not exist, the most not within the protection domain of application claims.
The present invention proposes a kind of spiral wound reverse-osmosis membrane element.
Referring to Fig. 1 and Fig. 2, wherein, the solid line instruction of band arrow is face or the space such as hole, mouth；Real in the present invention
Executing in example, this spiral wound reverse-osmosis membrane element 700 includes: multipage reverse osmosis diaphragm group 100, central canal group the 200, first end cap
300 and second end cap 400, described central canal group 200 includes DI 210 and the waste pipe 220 of multiple spaced setting,
Multiple described waste pipes 220 are arranged around described DI 210, the perisporium of described DI 210 offer connection described pure
The pure water blasthole 211 of the inner passage of water pipe 210, the perisporium of each described waste pipe 220 offers the described waste water of connection
The waste water blasthole 221 of the inner passage of pipe 220；Each described reverse osmosis diaphragm group 100 is respectively provided with and is positioned at described central canal
Organize the Part I within 200 and be positioned at the Part II outside described central canal group 200, each described waste pipe 220 and institute
State DI 210 to be separated by the Part I of a described reverse osmosis diaphragm group 100；Multiple described reverse osmosis diaphragm groups 100
Part II forms the plural layers assembly of the surrounding being centered around described central canal group 200；Described first end cap 300 and the second end
Lid 400 is sheathed on the two ends of described central canal group 200 and described multipage reverse osmosis diaphragm group 100 respectively, with to described central canal
Group 200 and 100 groups of described reverse osmosis diaphragm position；Described first end cap 300 is provided with waste water discharge opening 310 and pure water is discharged
Mouth 320 (referring to Fig. 1 and Fig. 2)；Or, described first end cap 300 is provided with waste water discharge opening, and described second end cap 400 is provided with
Pure water outlet (this kind of set-up mode is not shown)；Described waste pipe 220 connects waste water discharge opening 310 and arranges, described DI
210 connect described pure water outlet 320 is arranged.
The central canal group 200 of the spiral wound reverse-osmosis membrane element 700 of technical solution of the present invention includes that DI 210 is with many
The individual waste pipe 220 around DI 210；The corresponding one page reverse osmosis of each waste pipe 220 of spiral wound reverse-osmosis membrane element 700
Permeable membrane sheet group 100, batches such that it is able to realize multimembrane page, can increase runner quantity, is conducive to improving former water flux, and solves
Reverse osmosis diaphragm 110 long osmotic pressure deficiency causes part reverse osmosis diaphragm 110 problem not up to filtering purpose；Pass through
First end cap 300 and the second end cap 400 clamp the two ends of central canal group 200 and reverse osmosis diaphragm group 100 respectively to position,
Pure water outlet 320 and waste water discharge opening 310 are set on the first end cap 300 simultaneously, form pipeline corresponding with central canal group 200
The runner of connection；After the first end cap 300 and the second end cap 400 seal those reverse osmosis diaphragm group 100 two ends, due to this center
Pipe group 200 is wound on center by multipage reverse osmosis diaphragm group 100, can form multipage reverse osmosis diaphragm group 100 outer side edges
Effluent is intake, and middle waste pipe 220 discharges the Yuan Shui water route of waste water；The spiral wound reverse-osmosis membrane element 700 of the present invention uses
Time, former water intake by effluent, and runner narrows, and water inlet area reduces, it is also possible to uses the water inlet flow-guiding screen 120 of low thickness, continues
Continuous minimizing water inlet area, and flow process increases the most significantly, therefore can increase the time that former water contacts with reverse osmosis diaphragm 110, carries
Plateau Water Sproading rate；Meanwhile because reduce former water water inlet area, can strengthen reverse osmosis diaphragm 110 surface water velocity (
Water inlet flux one timing, the relation between water inlet flux Q and water velocity V is V=Q/S；Wherein, S is water inlet area, specifically
, S=Ld；L is water inlet end diaphragm length, and d is section thickness, and effluent mainly reduces L, additionally with little water inlet flow-guiding screen
120 reduce thickness d naturally), it is thus possible to reduce reverse osmosis diaphragm 110 surface concentration polarization, reduce this spiral wound reverse osmosis
The pollution speed of membrane element 700, is conducive to improving former Water Sproading rate, thus improves the waste problem of former water, it is achieved high water saving.
Refer to Fig. 2, Figure 10 and Figure 11, in this central canal group 200, the perisporium of described DI 210 offers connection
The pure water blasthole 211 of the inner passage of described DI 210；Connection institute is offered on the perisporium of each described waste pipe 220
State the waste water blasthole 221 of the inner passage of waste pipe 220.Pure water and waste water are entered by pure water blasthole 211 and waste water respectively
Water hole 221 enters in corresponding passage.Wherein, the particular number of waste pipe 220 determines the number of pages of reverse osmosis diaphragm group 100,
Also determining the size of DI 210, concrete, the corresponding waste pipe 220 of one page reverse osmosis diaphragm group 100 is arranged, waste water
The number of pages of pipe 220 reverse osmosis diaphragm group 100 the most at most is the most, and the flux of corresponding spiral wound reverse-osmosis membrane element 700 is also got over
Greatly, and the size of DI 210 is also accordingly the biggest.The particular number of waste pipe 220, shape and the shape of corresponding DI 210
Shape is referred to the specific embodiment of the present invention, and arranges according to practical situation.
Waste water discharge opening 310 and pure water outlet 320 can be arranged on same end cap (the first end cap 300 or the second end cap
400), on, it is also possible to be separately positioned on different end caps, derivation waste water and the purpose of pure water can be played, at the present embodiment
In, refer to Fig. 1, Fig. 2 and Fig. 5, it is preferable that described waste water discharge opening 310 and described pure water outlet 320 may be contained within described
On first end cap 300.Now waste water discharge opening 310 and pure water outlet 320 are all disposed within the same side, carry out at corresponding filter element
During the design of water route, it is only necessary to corresponding first end cap 300 arranges a waterway converter 800, thus is conducive to simplifying correspondence
The structure of filter element.
So that the first end cap 300 and the second end cap 400 is fixing more reliable, in the present embodiment, can arrange, institute
The inner side stating the first end cap 300 is coated with fluid sealant, passes through between described first end cap 300 and described reverse osmosis diaphragm group 100
Fluid sealant adhesive seal, the facilities of analogy the first end cap 300；In the present embodiment, the inner side of described second end cap 400 is equal
Inner side be coated with fluid sealant, bonded close between described second end cap 400 and described reverse osmosis diaphragm group 100 by fluid sealant
Envelope, after bonding, first end cap the 300, second end cap 400 is not easy to come off, and installation reliability is greatly improved, meanwhile, fluid sealant pair
The two ends of reverse osmosis diaphragm group 100 seal, and stop that water flows towards the first end cap 300 or the second end cap 400, thus realize one
The water route of water outlet in the middle of the water inlet of side.
Refer to Fig. 3 and Fig. 5, in order to realize docking of waste pipe 220 and wastewater effluent mouth 310, described first end cap 300
The position of the corresponding described waste pipe 220 in inner side be convexly equipped with multiple the first of described waste water discharge opening 310 that connects with quantity and stretch into
Pipe 311, described first stretches into pipe 311 stretches in corresponding described waste pipe 220 to connect described waste water discharge opening 310 and described useless
Water pipe 220；Concrete, first one end stretching into pipe 311 is stretched in waste pipe 220 and is connected with waste pipe 220, and first stretches into pipe
The other end connection waste water discharge opening 310 of 311, achieves the connection in water route reliably, simultaneously first stretch into pipe 311 also have fixed
Bit function, it is possible to assist being directed at of the first end cap 300 and central canal group 200, improves the knot of spiral wound reverse-osmosis membrane element 700
Structure compactedness and reliability.In order to realize docking of DI 210 and pure water outlet 320, the inner side of described first end cap 300
The position male of corresponding described DI 210 is communicated with the second of described pure water outlet 320 and stretches into pipe 321, and described second stretches
Enter pipe 321 to stretch in described DI 210 to connect described pure water outlet 320 and described DI 210.Second stretches into pipe
The effect of 321 and effect can stretch into pipe 311 with analogy first, do not repeat them here.
Second end cap 400 is installed for convenience；Refer to Fig. 4, in the present embodiment, the inner side of described second end cap 400
Position and the quantity of corresponding described waste pipe 220 are convexly equipped with multiple first positioning convex 401, and described first positioning convex 401 is stretched
Enter in corresponding described waste pipe 220；The position male of the corresponding described DI 210 in the inner side of described second end cap 400 is provided with second
Positioning convex 402, described second positioning convex 402 stretches in described DI 210.By the first positioning convex 401 and waste water
Pipe 220 coordinates, the second positioning convex 402 coordinates with DI 210, it is possible to simplify the alignment function of the second end cap 400, simultaneously in
Heart pipe group 200 is connected by the first positioning convex 401 and the second positioning convex 402 with the second end cap 400, can improve further
The structural compactness of whole spiral wound reverse-osmosis membrane element 700 and reliability.
Whenever necessary, the second end cap 400 can also design the outlet of correspondence by analogy the first end cap 300, thus the
Also pure water stream is formed or/and waste water stream at two end caps 400.Further referring to Fig. 2, in the present embodiment, in order to simplify
Water route, the second end cap 400 does not arrange outlet, and the second end cap 400 seals with central canal group when coordinating, in DI 210
Pure water and waste pipe 220 in waste water will not flow to discharge towards the second end cap 400, but when the second end cap 400 and central canal
When sealing effectiveness between 200 is the best, pure water and waste water are it is also possible that flow to be discharged to the shell of filter element to the second end cap 400
In body, thus affect purification efficiency；In order to avoid this situation, in the present embodiment, described DI 210 away from described
One end mouth of pipe of one end cap 300 is blocked, so that pure water flows to the pure water outlet 320 of described first end cap 300；Described
One end mouth of pipe away from described first end cap 300 of waste pipe 220 is blocked, so that waste water flows to described first end cap 300
Dynamic.Referring to Fig. 2, now, pure water flow direction is certain, it is possible to collect pure water reliably, after closure, and waste water flow direction one
Fixed, it is possible to collect waste water reliably.When actually used, spiral wound reverse-osmosis membrane element 700 is usually vertically placement, this
Time, corresponding described DI 210 and multiple described waste pipe 220 the most vertically put, the first end cap 300 up,
Second end cap 400 is in lower section, and the lower port arranging described DI 210 is blocked, and the lower port of multiple described waste pipes 220 is equal
Blocked, collect pure water and waste water, uniform fluid flow from upper end, and be easy to the design of pipeline.
Referring to Fig. 6 and Fig. 7, each described reverse osmosis diaphragm group includes reverse osmosis diaphragm 110, water inlet flow-guiding screen 120
And pure water flow-guiding screen 130；Water inlet flow-guiding screen 120 and pure water flow-guiding screen 130 are just being separately positioned on described reverse osmosis diaphragm 110
Anti-two sides, former water flows in the front of reverse osmosis diaphragm 110, and under the effect of osmotic pressure, from reverse osmosis diaphragm 110 just
Reverse side towards reverse osmosis diaphragm 110 permeates pure water, and pure water produces at the reverse side of reverse osmosis diaphragm 110 and at pure water flow-guiding screen
Flow to DI 210 under the guide functions of 130.Wherein, reverse osmosis diaphragm 110 can make front adjacent with front by doubling
Connecing, reverse side adjoins with reverse side, it is to avoid unnecessary contact, thus prevents pure water to be contaminated；During practical operation, reverse osmosis diaphragm
110 doubling time can be the inside doubling in front can also be the inside doubling of reverse side, carry out Rational choice i.e. according to practical situation
Can.Further referring to Fig. 7, in the present embodiment, reverse osmosis diaphragm 110 front of each described reverse osmosis diaphragm group 100
Inwardly doubling is arranged, and the Part II overlapping of multiple described reverse osmosis diaphragm groups 100 is also circumferentially wound around described central canal jointly
Group 200；Water inlet flow channel is formed between the interlayer of same described reverse osmosis diaphragm 110 front；Adjacent two described reverse osmosis diaphragms 110
Reverse side interlayer between formed produce water flow passage；Described water inlet flow-guiding screen 120 and described waste pipe 220 are positioned in water inlet flow channel, institute
State pure water flow-guiding screen 130 to be positioned in product water flow passage.Now, separate between water inlet flow channel and product water flow passage, and thoroughly isolate,
Can effectively ensure that the water inlet flow-guiding screen 120 of each described reverse osmosis diaphragm group 100 not with described DI 210 and other
Described reverse osmosis diaphragm group 100 reverse osmosis diaphragm 110 reverse side contact；Each described reverse osmosis diaphragm group 100 pure
Water flow-guiding screen 130 not with described waste pipe 220 and the front of the reverse osmosis diaphragm 110 of other described reverse osmosis diaphragm group 100
Contact；Former water only flows in water inlet flow channel and is finally discharged by waste pipe 220, and pure water only flows last by pure in producing water flow passage
Water pipe 210 is discharged, thus avoids pure water to pollute, it is ensured that clean-up effect.
In order to derived by pure water smoothly, in the present embodiment, described product water flow passage can be set except near described
The equal closing seam of other sides beyond the side of DI 210, so that described product water flow passage only has towards described pure water
The pure water outlet of pipe 210；Now producing water flow passage and form the film bag of three side seal one side openings, film bag mouth faces toward DI
210, the pure water limited in film bag can only flow towards DI 210；Former water produces pure water after the effect of reverse osmosis diaphragm 110,
Pure water is formed in film bag and flow to bag mouth and enters in DI 210.During practical operation, carry out when can be operated by wound membrane
Realize seal, simultaneously the sealing station at two ends can also utilize the first end cap 300 and the second end cap 400 fluid sealant sealing effect
Fruit carries out second time and seals, and then realizes better seal effect.
Please referring particularly to Fig. 6, Fig. 8 and Fig. 9, in one embodiment of this invention, the quantity of described waste pipe 220 is N number of,
N is more than or equal to 3；The cross section of described DI 210 is that N limit shape is arranged, and correspondence has N number of side surface, each described side
Described pure water blasthole 211 it is equipped with on surface 212；The position of the corresponding described side surface 212 of each described waste pipe 220
Install.Now each described waste pipe 220 can be plane towards the side of this side surface 212, facilitates reverse osmosis diaphragm
Group 100 stretches into and winds.Concrete, in the present embodiment, N=5, the i.e. quantity of waste pipe 220 are 5, DI 210 transversal
Face is substantially arranged in regular pentagon, and correspondence has five side surfaces 212, the corresponding described side of each described waste pipe 220
The position on surface 212 is arranged.This setup can ensure that a side of each the most corresponding DI 210 of waste pipe 220
Surface 212, carrying out from each other will not be interfering with each other when wound membrane operates, instant rolled membrane operations.In order to ensure each waste pipe
The pure water that the reverse osmosis diaphragm group 100 of 220 correspondences is produced can be collected in DI 210 timely, is preferably provided with each
All it is interval with multiple described pure water blasthole 211 on described side surface 212, and multiple described pure water blasthole 211 is along described
The length direction of DI 210 is uniformly arranged, and thus, the pure water of each position can quickly flow to nearer pure water and enter
In water hole 211；In order to get rid of waste water in time, each described waste pipe 220 is all interval with multiple described waste water and enters water
Hole 221 enters the internal path of waste pipe 220, and multiple described waste water blasthole 221 is along the length direction of described waste pipe 220
Uniformly arrangement, it is ensured that the waste water of each position can quickly flow in nearer waste water blasthole 221 enter waste pipe
The internal path of 220.
Referring to Figure 12, in another embodiment of the invention, the circular in cross-section of described DI 210 ' is arranged, institute
The perisporium stating DI 210 ' is divided into multiple cambered surface section 213 along the corresponding multiple described waste pipes 220 ' of its circumference, each described
Described pure water blasthole (not shown) it is equipped with in cambered surface section 213；The corresponding described cambered surface section of each described waste pipe 220 '
The position of 213 is arranged.In the present embodiment, the quantity of waste pipe 220 ' is 6, and the perisporium of DI 210 ' is many along its circumference correspondence
Individual described waste pipe 220 ' is divided into 6 cambered surface sections 213, the corresponding described cambered surface section 213 of each described waste pipe 220 '
Position arrange.This setup can ensure that a cambered surface section of each the most corresponding DI 210 ' of waste pipe 220 '
213, carrying out from each other will not be interfering with each other when wound membrane operates, instant rolled membrane operations.In order to ensure each waste pipe 220 '
The pure water that corresponding reverse osmosis diaphragm group 100 is produced can be collected in DI 210 ' timely, is preferably provided with each institute
State and in cambered surface section 213, be all interval with multiple described pure water blasthole (not shown), and multiple described pure water blasthole is along described
The length direction of DI 210 ' is uniformly arranged, and thus, the pure water of each position can quickly flow to nearer pure water
In blasthole；In order to get rid of waste water in time, each described waste pipe 220 ' is all interval with multiple described waste water and enters water
Hole (not shown) enters the internal path of waste pipe 220 ', and multiple described waste water blasthole is along the length of described waste pipe 220 '
Uniformly arrange in direction, it is ensured that the waste water of each position can quickly flow in nearer waste water blasthole enter waste pipe
The internal path of 220 '.
Wound membrane operation for convenience, can arrange described DI 210 and multiple described waste pipe 220 common combination is formed
Cylindrical；During wound membrane, when central canal group 200 rotates, ratio is more uniform, it is not easy to occur crooked, rolls the outward appearance of finished product also simultaneously
Meeting ratio is more uniform, it is simple to rolls in the housing being installed to spiral wound reverse-osmosis membrane element 700 of finished product, also allows for spiral wound
The end cap of reverse-osmosis membrane element 700 is directed at and sealing with roll finished product.
Refer to Fig. 8 and Figure 11, in order to reach more preferable water conservancy diversion effect, at the spiral wound reverse-osmosis membrane element of the present invention
In the central canal group 200 of 700, the perisporium of described waste pipe 220 offers waste water guiding gutter 222, described waste water blasthole 221
It is located in described waste water guiding gutter 222.Waste water guiding gutter 222 position, shape and quantity are specifically set, can be according to concrete feelings
Condition is chosen, and in the present embodiment, this waste pipe 220 is interval with multiple waste water guiding gutter circumferentially extending along waste pipe 220
222, it is designed with a waste water blasthole 221 in each waste water guiding gutter 222, waste water guiding gutter 222 has and catchments and water conservancy diversion
Effect, it is possible to help waste water to enter more quickly and accurately in waste pipe 220.The waste water guiding gutter 222 of other shapes also is able to reality
Now catchment and the effect of water conservancy diversion, do not do restriction further at this.
During actual production DI 210, owing to the general length of DI 210 is longer, and radius is less, interior when therefore producing
Slide block is loosed core difficulty vertically, cause DI 210 cannot quick volume production, in order to solve this problem, refer to Figure 10, at this
In the central canal group 200 of embodiment, the perisporium of this DI 210 offers along the extension of described DI 210 length direction
First steps down opening 214, and when producing this DI 210, whole inner slide can be split as three slide blocks of upper, middle and lower, and middle slide block can
To step down opening 214 side core-pulling by first, upper and lower two slide blocks can be loosed core by the two ends mouth of pipe respectively, substantially reduces
The quick volume production of production difficulty, beneficially DI 210.Meanwhile, the first opening 214 of stepping down can also play pure water inlet opening
Function, passes into for pure water in the inner passage of DI 210.Owing to the whole periphery wall of DI 210 is when wound membrane
Will be squeezed, in order to cause weighing wounded in the first deformation at opening 214 of stepping down after preventing diaphragm pressurized, in the present embodiment,
Described first steps down is provided with the first reinforcement 215 in opening 214, and the two ends of described first reinforcement 215 connect described respectively
One different two limit stepping down opening 214.By the first reinforcement 215, the diaphragm of reverse osmosis diaphragm group 100 is supported,
The diaphragm that can effectively prevent reverse osmosis diaphragm group 100 weighs wounded.In the present embodiment, the first reinforcement 215 prolongs along its length
Stretching, the two ends of the first reinforcement 215 connect the described first two minor faces stepping down opening 214 respectively；Obvious first reinforcement 215
Set-up mode be not limited to the concrete mode of the present embodiment, as long as can be to realize supporting, do not affect that water route is unobstructed and not shadow
Ring produce molding structure can be applied in technical scheme, the first reinforcement 215 quantity, position are specifically set
Put, shape can be chosen according to actual needs, does not repeats them here.
When producing waste pipe 220, it is contemplated that problem of loosing core, it is referred to the set-up mode of above-mentioned DI 210, refers to
Figure 11, offers on the perisporium of described waste pipe 220 and second steps down opening along what described waste pipe 220 length direction extended
223, reduce the production difficulty of waste pipe 220, the beneficially quick volume production of waste pipe 220.Meanwhile, second opening 223 is stepped down also
The function of waste water blasthole 221 can be played, pass into for waste water in the inner passage of waste pipe 220.For waste pipe
Causing weighing wounded in the second deformation at opening 223 of stepping down after diaphragm pressurized at 220, in the present embodiment, described second steps down out
Mouth 223 is located at the described waste pipe 220 side towards DI 210, and this position stress is relatively small, it is not easy to damage
Wound.Can also step down second and arrange the second reinforcement 224 in opening 223, the two ends of described second reinforcement 224 connect respectively
Described second different two limit stepping down opening 223.By the second reinforcement 224, the diaphragm of reverse osmosis diaphragm group 100 is entered
Row supports, it is possible to effectively prevents the diaphragm of reverse osmosis diaphragm group 100 to be pressed into first in filter process and steps down and cause in opening 214
Weigh wounded, and then cause the problem that salt rejection rate reduces；As long as can be realize supporting, not affect water route unobstructed and do not affect production
Second reinforcement 224 structure of molding can be applied in technical scheme, the concrete setting of the second reinforcement 224
Quantity, position, shape can be chosen according to actual needs, do not repeat them here.
Referring to Figure 13, the present invention also proposes a kind of filter element, and this filter element includes housing 900, waterway converter 800 and spiral
Coiled reverse osmosis membrane element 700, the concrete structure of this spiral wound reverse-osmosis membrane element 700 is with reference to above-described embodiment, due to this
Filter element have employed whole technical schemes of above-mentioned all embodiments, and the technical scheme the most equally with above-described embodiment is brought
All beneficial effects, this is no longer going to repeat them.Described spiral wound reverse-osmosis membrane element 700 is placed in described housing 900
In；Described waterway converter 800 is provided with two independent water routes, wherein a described water route and described waste water discharge opening 310 phase
Connection, another described water route is connected with described pure water outlet 320.The pure water flowed out at end cap and waste water are through water route
The guiding of transducer 800 is discharged in different pipelines.In the present embodiment, housing 900 includes holding part 910 and is covered on accommodating
Filter element head 920 in portion 910, the second end cap 400 of spiral wound reverse-osmosis membrane element 700 stretches in holding part 910 inwardly, water
Road transducer 800 is installed between the first end cap 300 and filter element head 920.
The present invention also proposes a kind of anti-penetration water purifier, and this anti-penetration water purifier includes filter element, the concrete structure of this filter element
With reference to above-described embodiment, owing to this anti-penetration water purifier have employed whole technical schemes of above-mentioned all embodiments, the most equally
Having all beneficial effects that the technical scheme of above-described embodiment is brought, this is no longer going to repeat them.
It should be noted that, the technical scheme of each embodiment of the present invention can be combined with each other, but must be with this
Based on the technical staff in field is capable of, when technical scheme combination occur conflicting maybe cannot realize time should people recognize
Combination for this technical scheme does not exists, the most not within the protection domain of application claims.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization
The equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (17)
1. a spiral wound reverse-osmosis membrane element, it is characterised in that including:
Central canal group, described central canal group includes DI and the waste pipe of multiple spaced setting, multiple described waste water
Pipe ring is arranged around described DI, and the pure water that the perisporium of described DI offers the inner passage connecting described DI enters
Water hole, the perisporium of each described waste pipe offers the waste water blasthole of the inner passage connecting described waste pipe；
Multipage reverse osmosis diaphragm group, each described reverse osmosis diaphragm group is respectively provided with first be positioned within described central canal group
Divide and be positioned at the Part II outside described central canal group, each described waste pipe and described DI by a described reverse osmosis
The Part I of diaphragm group separates；The Part II of multiple described reverse osmosis diaphragm groups forms the week being centered around described central canal group
The plural layers assembly enclosed；
First end cap and the second end cap, described first end cap and the second end cap are sheathed on described central canal group and described multipage respectively
The two ends of reverse osmosis diaphragm group, to position described central canal group and described reverse osmosis diaphragm group；
Wherein, described first end cap is provided with waste water discharge opening and pure water outlet；Or, described first end cap is provided with waste water and discharges
Mouthful, described second end cap is provided with pure water outlet；Described waste pipe connection waste water discharge opening is arranged, and the connection of described DI is described
Pure water outlet is arranged.
2. spiral wound reverse-osmosis membrane element as claimed in claim 1, it is characterised in that described waste water discharge opening and described pure
Water outlet may be contained within described first end cap.
3. spiral wound reverse-osmosis membrane element as claimed in claim 1 or 2, it is characterised in that the inner side of described first end cap
It is coated with fluid sealant, by fluid sealant adhesive seal between described first end cap and described reverse osmosis diaphragm group；And/or,
The inner side of described second end cap is coated with fluid sealant, by sealing between described second end cap and described reverse osmosis diaphragm group
Glue bond seals.
4. spiral wound reverse-osmosis membrane element as claimed in claim 2, it is characterised in that
The position of the corresponding described waste pipe in the inner side of described first end cap is convexly equipped with quantity and multiple connects described waste water discharge opening
First stretch into pipe, described first stretches in the described waste pipe that pipe stretches to correspondence, and connects described waste water discharge opening and right
The described waste pipe answered；
The position male of the corresponding described DI in the inner side of described first end cap is communicated with the second of described pure water outlet and stretches into
Pipe, described second stretches into pipe stretches in described DI, and connects described pure water outlet and described DI.
5. spiral wound reverse-osmosis membrane element as claimed in claim 2, it is characterised in that
The position of the corresponding described waste pipe in the inner side of described second end cap and quantity are convexly equipped with multiple first positioning convex, and described the
Positioning protrusion stretches to arrange in corresponding described waste pipe；
The position male of the corresponding described DI in the inner side of described second end cap is provided with the second positioning convex, described second positioning convex
Stretch to described DI is arranged.
6. spiral wound reverse-osmosis membrane element as claimed in claim 2, it is characterised in that
Described DI is blocked away from one end mouth of pipe of described first end cap, so that pure water is to the pure water of described first end cap
Outlet flows；
Described waste pipe is blocked away from one end mouth of pipe of described first end cap, so that waste water is to the waste water of described first end cap
Outlet flows.
7. spiral wound reverse-osmosis membrane element as claimed in claim 1 or 2, it is characterised in that each described reverse osmosis membrane
Sheet group includes reverse osmosis diaphragm, water inlet flow-guiding screen and pure water flow-guiding screen；
The inside doubling in reverse osmosis diaphragm front of each described reverse osmosis diaphragm group is arranged, multiple described reverse osmosis diaphragm groups
Part II overlapping is also circumferentially wound around described central canal group jointly；Formed between the interlayer of same described reverse osmosis diaphragm front into
Water flow passage；Formed between the reverse side interlayer of adjacent two described reverse osmosis diaphragms and produce water flow passage；Described water inlet flow-guiding screen and described
Waste pipe is positioned in water inlet flow channel, and described pure water flow-guiding screen is positioned in product water flow passage.
8. spiral wound reverse-osmosis membrane element as claimed in claim 7, it is characterised in that described product water flow passage is except near described
The equal closing seam of other sides beyond the side of DI, so that described product water flow passage only has towards described DI
Pure water exports.
9. spiral wound reverse-osmosis membrane element as claimed in claim 1 or 2, it is characterised in that the quantity of described waste pipe is N
Individual, N is more than or equal to 3；
The cross section of described DI is that N limit shape is arranged, and correspondence has N number of side surface, and each described side surface is equipped with
Described pure water blasthole；
The position of the corresponding described side surface of each described waste pipe is arranged.
10. spiral wound reverse-osmosis membrane element as claimed in claim 1 or 2, it is characterised in that
The circular in cross-section of described DI is arranged, and the perisporium of described DI is drawn along the corresponding multiple described waste pipes of its circumference
It is divided into multiple cambered surface section, each described cambered surface section is equipped with described pure water blasthole；
The position of the corresponding described cambered surface section of each described waste pipe is arranged.
11. spiral wound reverse-osmosis membrane elements as claimed in claim 1 or 2, it is characterised in that on the perisporium of described waste pipe
Offering waste water guiding gutter, described waste water blasthole is located in described waste water guiding gutter.
12. spiral wound reverse-osmosis membrane elements as claimed in claim 1 or 2, it is characterised in that on the perisporium of described DI
Offer and first step down opening along what described DI length direction extended.
13. spiral wound reverse-osmosis membrane elements as claimed in claim 12, it is characterised in that described first steps down sets in opening
The first reinforcement, the two ends of described first reinforcement is had to connect the described first different two limit stepping down opening respectively.
14. spiral wound reverse-osmosis membrane elements as claimed in claim 1 or 2, it is characterised in that on the perisporium of described waste pipe
Offer and second step down opening along what described waste pipe length direction extended.
15. spiral wound reverse-osmosis membrane elements as claimed in claim 14, it is characterised in that described second steps down sets in opening
The second reinforcement, the two ends of described second reinforcement is had to connect the described second different two limit stepping down opening respectively.
16. 1 kinds of filter elements, it is characterised in that include housing, waterway converter and as according to any one of claim 1 to 15
Spiral wound reverse-osmosis membrane element；Described spiral wound reverse-osmosis membrane element is placed in described housing；Described waterway converter
Being provided with two independent water routes, wherein a described water route is connected with the waste water discharge opening of described first end cap, another institute
State water route to be connected with the pure water outlet of described first end cap.
17. 1 kinds of anti-penetration water purifiers, it is characterised in that include filter element as claimed in claim 16.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743900.4A CN106110894B (en) | 2016-08-26 | 2016-08-26 | Spiral wound reverse-osmosis membrane element, filter core and anti-penetration water purifier |
| PCT/CN2016/113101 WO2018036064A1 (en) | 2016-08-26 | 2016-12-29 | Spiral wound reverse osmosis membrane element, filter element and reverse osmosis water purifier |
| US16/286,540 US11077406B2 (en) | 2016-08-26 | 2019-02-26 | Central tube set, spiral wound reverse osmosis membrane component, and reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743900.4A CN106110894B (en) | 2016-08-26 | 2016-08-26 | Spiral wound reverse-osmosis membrane element, filter core and anti-penetration water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106110894A true CN106110894A (en) | 2016-11-16 |
| CN106110894B CN106110894B (en) | 2019-08-13 |
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|---|---|---|---|
| CN201610743900.4A Active CN106110894B (en) | 2016-08-26 | 2016-08-26 | Spiral wound reverse-osmosis membrane element, filter core and anti-penetration water purifier |
Country Status (2)
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| CN (1) | CN106110894B (en) |
| WO (1) | WO2018036064A1 (en) |
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| WO2018036064A1 (en) * | 2016-08-26 | 2018-03-01 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse osmosis membrane element, filter element and reverse osmosis water purifier |
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| CN112403278A (en) * | 2017-01-05 | 2021-02-26 | 佛山市顺德区美的饮水机制造有限公司 | End cover, spiral roll formula reverse osmosis membrane element and water purifier |
| CN108273387B (en) * | 2017-01-05 | 2020-12-01 | 佛山市顺德区美的饮水机制造有限公司 | End cover, spiral roll formula reverse osmosis membrane element and water purifier |
| CN112403277A (en) * | 2017-01-05 | 2021-02-26 | 佛山市顺德区美的饮水机制造有限公司 | End cover, spiral roll formula reverse osmosis membrane element and water purifier |
| CN108273387A (en) * | 2017-01-05 | 2018-07-13 | 佛山市顺德区美的饮水机制造有限公司 | End cap, spiral wound reverse-osmosis membrane element and water purifier |
| CN108525523B (en) * | 2017-03-06 | 2020-08-25 | 佛山市顺德区美的饮水机制造有限公司 | Spiral-wound reverse osmosis membrane element and water purifier |
| CN108525523A (en) * | 2017-03-06 | 2018-09-14 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse-osmosis membrane element and water purifier |
| CN108654392A (en) * | 2017-03-30 | 2018-10-16 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse-osmosis membrane element and water purifier |
| CN108654392B (en) * | 2017-03-30 | 2023-09-01 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse osmosis membrane element and water purifier |
| CN108793325A (en) * | 2017-04-27 | 2018-11-13 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN110451604A (en) * | 2019-08-21 | 2019-11-15 | 自然资源部天津海水淡化与综合利用研究所 | A kind of novel reverse osmosis membrane assembly |
| CN113754100A (en) * | 2021-09-17 | 2021-12-07 | 张官红 | Reverse osmosis membrane water purifier |
| CN113754100B (en) * | 2021-09-17 | 2023-10-31 | 南方智水科技有限公司 | Reverse osmosis membrane water purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018036064A1 (en) | 2018-03-01 |
| CN106110894B (en) | 2019-08-13 |
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