CN202621032U - Water purifying cartridge filter and water purifier - Google Patents
Water purifying cartridge filter and water purifier Download PDFInfo
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- CN202621032U CN202621032U CN 201220271595 CN201220271595U CN202621032U CN 202621032 U CN202621032 U CN 202621032U CN 201220271595 CN201220271595 CN 201220271595 CN 201220271595 U CN201220271595 U CN 201220271595U CN 202621032 U CN202621032 U CN 202621032U
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Abstract
The utility model relates to a water purifying cartridge filter and a water purifier, wherein the water purifier comprises a plurality of purification units and the water purifying cartridge filter (1) serves as a primary purification unit; the water purifying cartridge filter (1) comprises a hollow fiber membrane bundle (10) for purifying raw water penetrating to the interior and a shell (20); the hollow fiber membrane bundle (10) with an open end is adhered on the shell (20); a free end side (10a) of the hollow fiber membrane bundle (10) is exposed out of the shell (20); and the length of the exposed free end side is more than 30% of the length of the effective membrane of the hollow fiber membrane bundle (10). With the adoption of the water purifying cartridge filter and the water purifier which are disclosed by the utility model, the purification of the hollow fiber membrane bundle can be effectively recovered through cleaning.
Description
Technical field
The utility model relates to a kind of water purification filter tube and water purifier.
Background technology
As the water purifier that former water is purified, for example known have a kind of water purifier that has a plurality of clean units that are provided with filter materials such as hollow-fibre membrane, can carry out high purification to former water interimly.For example can enumerate a kind of like this water purifier: at least one side in primary purification unit and the double purification unit has the water purification filter tube, and the both ends or one end that a plurality of hollow-fibre membranes are tied up the hollow fiber membrane bundle that forms are adhesively fixed on the housing of this water purification filter tube through Embedding Material and are incorporated in wherein (for example patent documentation 1).
In this water purifier with a plurality of clean units, the water purification filter tube of using as the primary purification unit produces mesh the earliest and stops up.Especially under the obviously lower situation of raw water quality, except mesh stopped up very early, the degree that mesh stops up was also very high, therefore, through backwash processing etc. hollow-fibre membrane was cleaned, recovers effectively also difficulty comparatively of purifying property.So, in this case, the water purification filter tube of must frequent change using as the primary purification unit.
Patent documentation 1: japanese kokai publication hei 6-154734 communique
The utility model content
The purpose of the utility model is, providing a kind of can make the purifying property of hollow fiber membrane bundle that the water purification filter tube of efficient recovery arranged and have a plurality of clean units and with the water purifier of said water purification filter tube as the primary purification unit through cleaning.
For solving above-mentioned problem, the utility model has adopted following structure.
First technical scheme: a kind of water purification filter tube, it has: make former water to what inside purified a plurality of hollow-fibre membranes tied up the hollow fiber membrane bundle that forms thoroughly; And housing, said hollow fiber membrane bundle is adhesively fixed on this housing through embedding portion with the state of one of which end opening,
The free end side of said hollow fiber membrane bundle exposes outside at said housing, and the exposed length that exposes from said housing is more than 30% with respect to the ratio of the effective film length of said hollow fiber membrane bundle.
Second technical scheme:, cover by said housing in the zone from the 10mm at least of the end face of the said free end side of said embedding portion of said hollow fiber membrane bundle like the described water purification filter tube of aforementioned first technical scheme.
The 3rd technical scheme: like the described water purification filter tube of aforementioned first or second technical scheme, the filling rate of the said hollow-fibre membrane in the said embedding portion is 20～60%.
The 4th technical scheme: like each described water purification filter tube in aforementioned first ~ the 3rd technical scheme, the internal diameter of said housing is 20～60mm.
The 5th technical scheme: a kind of water purifier, by a plurality of clean units former water is carried out stage and purify, have like each described water purification filter tube in aforementioned first ~ the 4th technical scheme and be used as the primary purification unit.
The utility model effect:
The water purification filter tube of the utility model can make the purifying property of hollow fiber membrane bundle that efficient recovery arranged through cleaning.
In addition; The water purifier of the utility model; Water purification filter tube through using the utility model is as the primary purification unit in a plurality of clean units, thereby can make the purifying property of hollow fiber membrane bundle that efficient recovery arranged through cleaning, therefore can reduce the replacing frequency of water purification filter tube.
Description of drawings
Fig. 1 be the expression the utility model the water purification filter tube embodiment one the example stereogram.
Fig. 2 be the expression the utility model the water purification filter tube embodiment one the example generalized section.
Fig. 3 is the vertical view of water purification filter tube manufacturing approach one operation of expression the utility model.
Fig. 4 is the profile of water purification filter tube manufacturing approach one operation of expression the utility model.
Symbol description:
1 ... The water purification filter tube; 10 ... Hollow fiber membrane bundle; 10a ... Free end; 11 ... Hollow-fibre membrane; 20 ... Housing; 21 ... Protection portion; 22 ... Water collecting part.
The specific embodiment
The water purification filter tube:
Below, an example of the embodiment of the water purification filter tube of detailed description the utility model.
Like Fig. 1 and shown in Figure 2, the housing 20 that the water purification filter tube 1 of this embodiment has hollow fiber membrane bundle 10 (below be called " filter material ") and is adhesively fixed with the stiff end 10b (end) of filter material 10.
One folding of the hollow fiber membrane bundle of the filter material 10 of water purification filter tube 1 is that two the side of turning back is that free end 10a, two terminally is stiff end 10b, and this hollow fiber membrane bundle promptly is adhesively fixed in housing 20 through embedding portion 32 under the two open-ended states at stiff end 10b.Passing through filter material 10 interior permeate water is concentrated in the water collecting part 22 of the stiff end 10b side of filter material 10 and its internal communication.So-called free end in the utility model be meant hollow fiber membrane bundle not with the top of the fixing side of case bonding.
The hollow fiber membrane bundle of the filter material 10 in this embodiment example is that a plurality of hollow-fibre membranes 11 are that the center is bundled into cylindric formation with central tube 31.
Hollow-fibre membrane is intrafascicular; The part of exposing from housing 20 can be through contact flowing water be stopped up flushing that material wash and washing by rubbing with the hands of cleaning etc. is rubbed on the hollow-fibre membrane surface on one side on one side and eliminates the mesh obstruction the mesh on hollow-fibre membrane surface, makes purifying property that efficient recovery arranged.
As hollow-fibre membrane 11, do not receive special qualification, can use the hollow-fibre membrane that for example constitutes by various materials such as cellulose, TPO, polyvinyl alcohol, polymethyl methacrylate (PMMA) class, polysulfones.Wherein, the hollow-fibre membrane of TPO such as polyethylene, polypropylene is comparatively preferred.
In addition, hollow-fibre membrane 11 is preferably micro-filtration membrane (MF film).If hollow-fibre membrane 11 is the MF film, then can remove organic matter and assorted bacterium.
In addition, hollow-fibre membrane 11 can be that the surface is hydrophilic hollow-fibre membrane, also can be that the surface is hydrophobic hollow-fibre membrane, can also and use the two.The surface is hydrophilic hollow-fibre membrane, its former water to see through efficient high.About the surface is hydrophobic hollow-fibre membrane, when in order to clean etc. and temporarily hollow fiber membrane bundle is mentioned from water and then when being immersed in the water, even sneaked into air in the hollow-fibre membrane, also easily this air is discharged into outside the film.Therefore, can suppress hollow-fibre membrane is concentrated permeate water because of the power that air stops up, needs are superfluous situation.
Seek this effect the time, also can be only the surface of the part of the side of turning back of hollow-fibre membrane 11 be made hydrophobicity.With the surface local of hollow-fibre membrane 11 make hydrophobic method and do not receive special qualification, for example, easy method is at hollow-fibre membrane surface coated hydrophobic resin.As said hydrophobic resin, can enumerate known urethane resin or silicone resin, epoxy resin etc.
The aperture of hollow-fibre membrane 11, porosity, thickness and external diameter etc. do not receive special qualification.The external diameter of hollow-fibre membrane 11 is preferably 20～2000 μ m, and the aperture is preferably 0.01～1 μ m, and porosity is preferably 20～90%, and thickness is preferably 5～300 μ m.
In addition, the breaking strength of hollow-fibre membrane 11 is preferably more than the 1N/fil.If more than the breaking strength 1N/fil, hollow-fibre membrane 11 produced damaged situation during then be suppressed at flushing easily, wash by rubbing with the hands etc. cleaned.
The breaking strength of hollow-fibre membrane is for example measured with following method.A hollow-fibre membrane 11 is cut into about 15cm as sample; Said sample is installed in cupping machine (Tensilon cupping machine; Orientec; RTM-100 etc.) on the 10cm anchor clamps at interval, draw speed be when measuring fracture under the 5cm/ condition of dividing stress (unit: N), as the breaking strength (unit: N/fil) of each root.
As the material of housing 20,, can enumerate for example Merlon, polysulfones, polyolefin, polyvinyl chloride (PVC), allyl resin, ABS resin, Noryl (PPE) etc. as long as have mechanical strength and durability.
As hollow fiber membrane bundle being adhesively fixed on Embedding Material on the housing 20, that form embedding portion 32, do not receive special qualification, see from solvent resistance and resistance to water viewpoints such as (swelling property are low), be preferably urethane resin.
The free end 10a side of the filter material 10 in the water purification filter tube 1 is exposed in the outside of the protection portion 21 of housing 20.
The exposed length that exposes from housing 20 is more than 30% with respect to the ratio of the effective film length of filter material 10, is preferably more than 50%, particularly is preferably more than 60%.If the ratio of said exposed length more than 30%, then can be carried out cleaning and removing except that eliminating the mesh obstruction through mesh being stopped up material, the purifying property of hollow fiber membrane bundle is recovered effectively.
In addition, the effective film length of so-called filter material 10 is meant the length of the part of exposing from embedding portion 32 of filter material 10.That is the ratio of the exposed length that, exposes from said housing is represented with following formula (1).
X=[(L
1-L
2)/(L
1-L
4)]×100 ……(1)
Wherein, in said formula (1), X is the exposed length that exposes from housing 20 ratio with respect to the effective film length of filter material 10, L
1Be the total length of filter material 10, L
2Be the length of protection portion 21 (length of the part that covers by protection portion 21 of filter material 10), L
4Thickness for embedding portion 32.
In addition, the stiff end 10b side of filter material 10 to preferably covering in the zone of 10mm at least by the protection portion 21 of housing 20 apart from the end face 32a of the free end 10a side of embedding portion 32 (below be called " embedding end face 32a ").That is the distance L from embedding end face 32a to the openend of housing 20 of filter material 10,
3Be preferably more than the 10mm.Thus, can obtain effect as follows.
The rigidity of embedding portion 32 rigidity than hollow-fibre membrane 11 usually is big, and the part of imbedding embedding portion 32 of hollow fiber membrane bundle is firmly fixed, and does not almost have the free degree.Therefore, if hollow fiber membrane bundle move, then near the part the embedding end face 32a of this hollow fiber membrane bundle can receive bigger power when cleaning etc., and hollow-fibre membrane might breakage in this part.But, through with the covering to the zone of 10mm at least of 21 pairs of filter materials 10 of protection portion of housing 20 from embedding end face 32a, thus with the activity restriction of the part that covers by protection portion 21 of hollow fiber membrane bundle in protection portion 21.Thus, when cleaning waits, can suppress near embedding portion 32 parts of hollow fiber membrane bundle and exceedingly swing, it is damaged to be prone to prevent that near the part of hollow fiber membrane bundle embedding end face 32a from producing.
The filling rate of the hollow-fibre membrane 11 in the housing 20 is preferably 20～60%, particularly preferred 25～50%.
If the filling rate of hollow-fibre membrane 11 more than 20%, then obtains sufficient purifying property easily.If the filling rate of hollow-fibre membrane 11 is below 60%,, therefore, can more effectively recover purifying property what for inner hollow-fibre membrane 11 also is easy to clean fully through washing, washing by rubbing with the hands to vicinal in hollow fiber membrane bundle.The filling rate of hollow-fibre membrane 11 is more little in above-mentioned scope, the recovery of the cleaning performance that can carry out effectively more being brought by cleaning.So mesh stops up many, the water quality inferiority of material in the former water, preferably sets the filling rate of hollow-fibre membrane 11 lower.
But the so-called filling rate of said hollow-fibre membrane 11 is meant the total ratio of sectional area among the end face 32b of stiff end 10b side of the filter material 10 in the embedding portion 32, hollow-fibre membrane 11 with respect to the sectional area (being the sectional area in the internal face of protection portion 21 in this embodiment) of the hollow-fibre membrane resettlement section in the housing 20.Under situation, remove the sectional area of this central tube 31 sectional area of the hollow-fibre membrane resettlement section in housing 20 with central tube 31.
For example, in the present example, the filling rate of hollow-fibre membrane 11 (unit: %) represent by following formula (2).
Y=(A×B)/(C-D)×100 ……(2)
Wherein, in the formula (2), Y is the filling rate of hollow-fibre membrane, and A is the sectional area of hollow-fibre membrane, and B is the radical of hollow-fibre membrane, and C is the sectional area in the internal face in the protection portion 21, and D is the sectional area of central tube.
Be provided with the gap between the internal face of the protection portion 21 of preferred housing 20 and the hollow fiber membrane bundle.
The internal face of the protection portion 21 of housing 20 and the lateral surface of hollow fiber membrane bundle apart from d
1Be preferably more than the 1mm.Said apart from d
1If more than the 1mm, then utilize flushing easily, wash by rubbing with the hands the part that is positioned at protection portion 21 of hollow fiber membrane bundle is cleaned, therefore, clean-up effect is more effectively recovered.In addition, said apart from d
1Be preferably below the 3mm.Thus, can effectively use the space of housing 20.
In addition, the inner diameter d of housing 20 is preferably 20～60mm.If more than the inner diameter d 20mm, then fill the hollow-fibre membrane of q.s easily.If below the inner diameter d 70mm, then be easy to clean fully the central part of filter material 10.
The manufacturing approach of water purification filter tube 1 is described below.But the manufacturing approach of water purification filter tube 1 is not limited to following method.
At first, as shown in Figure 3, La Sheer weaves the hollow-fibre membrane 11A of a plurality of strips, makes banded hollow fiber membrane bundle 10A (braid).Promptly; A plurality of hollow-fibre membrane 11A are repeatedly turned back according to the hollow fiber membrane bundle 10A width (length of filter material 10) of band shape; Use bundle line 12 these parts of turning back of binding of the chain stitch that extends along the length direction of hollow fiber membrane bundle 10A, process hollow fiber membrane bundle 10A.
Then, shown in Fig. 4 (A), with making in the housing 21A that columned hollow fiber membrane bundle 10A is accommodated in bottom tube-like, the bottom of this housing 21A is formed with a plurality of grooves that are radial extension.Then, use centrifuge, utilize centrifugal force to make Embedding Material be injected into the bottom of housing 21A, flow into and spread between housing 21A and the hollow fiber membrane bundle 10A and between each hollow-fibre membrane 11A through the throughput 31a of central tube 31.Then, Embedding Material is solidified, the bottom side of hollow fiber membrane bundle 10A is cut off by housing 21A and Embedding Material together, and hollow-fibre membrane 11A's is fixing distolateral open-ended.Thus, shown in Fig. 4 (B), filter material 10 is that hollow fiber membrane bundle is adhesively fixed in the protection portion 21 by embedding portion 32.
Then, water collecting part 22 is connected to protection portion 21, forms housing 20, obtain water purification filter tube 1 thus.
When utilizing 1 pair of former water of water purification filter tube to purify, former water supplies to the outside of filter material 10.Supply to the outside former water of filter material 10 and pass through in this hollow-fibre membrane 11, through filtration organic matter and assorted bacterium etc. are removed and purify from the face of each hollow-fibre membrane 11.Pass through the interior permeate water of hollow-fibre membrane 11 and focus on the inside 22a of water collecting part 22, be transported to subsequent processing from the opening of stiff end 10a side.
As the purposes of water purification filter tube 1, preferably being used as is the primary purification unit in water purifier purpose, that have a plurality of clean units with the poor former water that purifies water especially.But the purposes of water purification filter tube 1 is not limited to aforementioned applications.For example, its purposes also can be the water purifier that only has water purification filter tube 1 as clean unit, use as the later clean unit in double purification unit water purification filter tube 1 water purifier, have the purposes such as water purifier of two above water purification filter tubes 1.
Along with 1 pair of former water of water purification filter tube purifies, mesh stops up material and is deposited on the face of each hollow-fibre membrane 11, and filter material 10 mesh takes place stops up, and purifying property descends.In this case, clean, can remove mesh thus and stop up material, make purifying property that efficient recovery arranged through the water purification filter tube of this embodiment 1 is taken off from water purifier.
As the method that water purification filter tube 1 is cleaned, get final product so long as be suitable for the raw-material method of hollow fiber membrane bundle, if any under the situation that is present embodiment, can enumerate and cleaning method such as wash, wash by rubbing with the hands as the hollow fiber membrane bundle of filter material 10.In addition, also can use by faintly acid or if the methods that the medicament of alkalescence cleans such as surface grinding, citric acid, hypochlorous acid.
About water purification filter tube in the past,, therefore, can not make current directly contact hollow-fibre membrane at that, perhaps each hollow-fibre membrane appropriateness swung because hollow fiber membrane bundle all is accommodated in the housing.So, can not wash and wash by rubbing with the hands, be difficult to remove mesh and stop up material and make purifying property that efficient recovery arranged.
To this, the free end 10a side of the filter material 10 of water purification filter tube 1 is exposed from housing 20, and its exposed length is more than 30% with respect to the ratio of effective film length, thereby can be easy and effectively utilize flushing and wash by rubbing with the hands etc. filter material 10 is cleaned.Therefore, can will be deposited in filter material 10 lip-deep mesh stops up the material removal and makes purifying property that efficient recovery arranged.In addition, be 20～60% through the filling rate that makes hollow-fibre membrane 11, even the hollow-fibre membrane 11 of the inside of hollow fiber membrane bundle also is easy to clean the further efficient that purifying property is recovered that improves.In addition, through the hollow-fibre membrane that covers filter materials 10 with the protection portion of housing 20 21 intrafascicular from embedding end face 30a to the zone of 10mm at least, suppress hollow-fibre membrane 11 and when cleaning, produce damaged effect thereby improve.
In addition, the water purification filter tube of the utility model is not limited to aforesaid water purification filter tube 1.For example; The hollow fiber membrane bundle of filter material 10 be not limited to a plurality of hollow-fibre membranes tie up and one the folding be two; With its side of turning back as free end, with the form of two ends as stiff end; Also such form a: end (top) is turned back and former state is tied up unchangeably and made hollow fiber membrane bundle by a plurality of hollow-fibre membranes of being sealed, its top is being adhesively fixed on the housing through embedding portion under as the state of opening as free end, the other end.
As the method that an end (top) of hollow-fibre membrane is sealed, can enumerate method that the heat bonding that utilizes film self seals the top of hollow-fibre membrane, will be coated on the top of hollow-fibre membrane by the thermoplastic resin that thermoplastic resin constitutes and the method for sealing, heat-curing resin is coated on the top of hollow-fibre membrane and the method for sealing etc.
Water purifier:
The water purifier of the utility model is a kind of water purifier with a plurality of clean units that former water is purified, and the water purification filter tube with aforesaid the utility model is as the primary purification unit.The water purifier of the utility model except water purification filter tube with the utility model as the primary purification unit, miscellaneous part can use known parts.For example, a kind of water purifier of can giving an example with two clean units, wherein, the water purification filter tube with the utility model as the primary purification unit, have known water purification filter tube as two sub-cells.
The number of the clean unit in the water purifier of the utility model is also more than three.In addition; The later clean unit in double purification unit in the water purifier of the utility model does not receive special qualification; Both can use the water purification filter tube of the utility model, also can make up the water purification filter tube that uses known water purification filter tube and the utility model as the later clean unit in double purification unit.
About the water purifier of the utility model, stop up even be used as the water purification filter tube generation mesh of the utility model of primary purification unit, also can make purifying property that efficient recovery arranged through cleaning the obstruction of elimination mesh.So, be particularly suitable for the former water purification that mesh stops up the many water quality inferiorities of material.
Embodiment:
Below, embodiment and comparative example are shown, specify the utility model.But the utility model does not receive the qualification of following record.
In the present embodiment, use Fig. 1 and 1 pair of former water of the illustrative water purification filter tube of Fig. 2 to purify, when causing purifying property to descend, carry out various cleanings, and studied the recovery rate of cleaning performance because of the mesh obstruction.
The ratio of exposed length, filling rate:
The outer exposed length of housing 20 is with respect to the ratio of the effective film length of filter material 10 (unit: %) and filling rate (unit: %) calculated by following formula (1), (2) respectively.
X=[(L
1-L
2)/(L
1-L
4)]×100 ……(1)
Y=(A×B)/(C-D)×100 ……(2)
Wherein, in the formula (1), X is the ratio of housing 20 exposed length outward with respect to the effective film length of filter material 10, L
1Be the total length of filter material 10, L
2Be the length of protection portion 21 (by the length of the part that covers by protection portion 21 of filter material 10), L
4Thickness for embedding portion 32.In addition, in the formula (2), Y is the filling rate of hollow-fibre membrane, and A is the sectional area of hollow-fibre membrane, and B is the radical of hollow-fibre membrane, and C is the sectional area in the internal face in the protection portion 21, and D is the sectional area of central tube.
The recovery rate of purifying property:
Cleaning performance is estimated through the recovery rate with the purifying property of following formula (3) definition.
Z=E/F ……(3)
Wherein, in the formula (3), Z is the recovery rate of purifying property, and E is the flow (L/ branch) of the permeate water of the filter material 10 after cleaning, and F is the flow (1.0L/ branch) of permeate water that is in the filter material 10 of mesh blocked state.
Embodiment 1:
The hydrophilic treatment hollow-fibre membrane (external diameter 0.38mm, breaking strength 2.6N/fil) of polyethylene system and hydrophobic hollow fiber film (external diameter 0.365mm, the breaking strength 0.1～0.3N/fil) of polyethylene system have been used as hollow-fibre membrane 11.Made 154 bundles and 24 said hydrophilic treatment hollow-fibre membranes and 1 said hydrophobic hollow fiber film have been tied up the harness that forms with a bundle line 12; It is cylindric as hollow fiber membrane bundle in protection 21 (the internal diameter 44mm) of portion cylindraceous, to be with central tube 31 (external diameter 5mm) that the center is bundled into them; It is through embedding portion 32 (Embedding Material: urethane) be adhesively fixed and present the state of stiff end 10b opening, thereby constituted filter material 10.The filling rate of hollow-fibre membrane 11 is 29%, and the exposed length of hollow fiber membrane bundle is 60mm, and the effective film area is 0.4m
2The free end side of hollow fiber membrane bundle is in the state with 12 bindings of bundle line.
Length (L from hollow fiber membrane bundle embedding end face 32a to free end 10a (top of the side of turning back)
1-L
4) be 85mm, the axial length L of protection portion 21
2Be 25mm.That is, the exposed length outside the housing 20 is 71% with respect to the ratio of the effective film length of filter material 10.
As former water, used the general running water of Chinese Shanghai.
Using aforementioned water purification filter tube 1, is the 3.0L/ branch thereby the flow of adjusting former water makes the flow through the permeate water of hollow-fibre membrane, when this flow becomes the 1.0L/ timesharing because of mesh stops up, water purification filter tube 1 is carried out rinsing.
Rinsing is performed such: 500～1000ML running water is put into beaker, arrest water collecting part 22 with hand the zone of exposing of hollow fiber membrane bundle is immersed in the water, with hand moving water purification filter tube 1, carried out one minute.
The recovery rate of the purifying property that cleaning brings is illustrated in the table 1.
Embodiment 2:
After rinsing, change water, repeat five rinsings, in addition, all the other have obtained the recovery rate of clean-up effect with embodiment 1 identically.The recovery rate of cleaning the purifying property that is brought is illustrated in the table 1.
Embodiment 3～5:
Except rinsing is changed to wash by rubbing with the hands and its wash number by shown in the table 1, all the other have obtained the recovery rate of clean-up effect with embodiment 1 identically.In repeatedly cleaning, each cleaning is changed water at any time and is carried out.
Wash by rubbing with the hands and be performed such: with finger surface contaminants is come off Yi Bian crumple hollow fiber membrane bundle from free end 10a side,, carried out one minute Yi Bian make the free end 10a effluent mistake of running water from hollow fiber membrane bundle.
The recovery rate of cleaning the purifying property that is brought is illustrated in the table 1.
Embodiment 6～15:
Comparative example 1:
Except protection portion 21 length L to housing 20
2Change, the ratio of the exposed length of filter material 10 is changed to outside 24%, all the other have obtained the recovery rate of clean-up effect with embodiment 1 identically.The recovery rate of cleaning the purifying property that is brought is illustrated in the table 1.
Table 1:
As shown in table 1, the free end side that makes hollow fiber membrane bundle to housing expose outside, exposed length outside the housing is among the embodiment 1～15 more than 30% with respect to the ratio of its effective film length, through rinsing or wash by rubbing with the hands and can make purifying property that efficient recovery is arranged.
In addition; Cover by housing 20 hollow fiber membrane bundles from the embodiment 12 in the zone of embedding end face 32a to 5mm; Found that the embedding end face 32a side of hollow-fibre membrane damages a little; But by 20 pairs of embedding end faces of housing 32a in the embodiment 1～11 and 13～15 that the zone of 10mm covers at least, find hollow-fibre membrane not damage fully.
In addition; The filling rate of hollow-fibre membrane 11 less than 20% embodiment 13 in; The hollow fiber membrane bundle occurrence of tilting that has, and be that hollow fiber membrane bundle does not fall down among the embodiment 1～12,14,15 more than 20% at filling rate, can not have and more effectively carry out former water purification stagnantly.
On the other hand, in the comparative example 1 of the exposed length outside housing with respect to the ratio less than 30% of the effective film length of hollow fiber membrane bundle, the recovery rate of cleaning the purifying property that is brought is 1.2, can not make purifying property that efficient recovery is arranged even carry out rinsing.
Claims (6)
1. a water purification filter tube is characterized in that having: make former water to what inside purified a plurality of hollow-fibre membranes tied up the hollow fiber membrane bundle that forms thoroughly; And housing, said hollow fiber membrane bundle is adhesively fixed on this housing through embedding portion with the state of one of which end opening,
The free end side of said hollow fiber membrane bundle exposes outside at said housing, and the exposed length that exposes from said housing is more than 30% with respect to the ratio of the effective film length of said hollow fiber membrane bundle.
2. water purification filter tube as claimed in claim 1 is characterized in that, is covered by said housing in the zone from the 10mm at least of the end face of the said free end side of said embedding portion of said hollow fiber membrane bundle.
3. water purification filter tube as claimed in claim 2 is characterized in that, the filling rate of the said hollow-fibre membrane in the said embedding portion is 20～60%.
4. water purification filter tube as claimed in claim 1 is characterized in that, the filling rate of the said hollow-fibre membrane in the said embedding portion is 20～60%.
5. like each described water purification filter tube in the claim 1～4, it is characterized in that the internal diameter of said housing is 20～60mm.
6. a water purifier carries out stage by a plurality of clean units to former water and purifies, and it is characterized in that, has like each described water purification filter tube in the claim 1～5 to be used as the primary purification unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011129257A JP2012254410A (en) | 2011-06-09 | 2011-06-09 | Water purifying cartridge and water purifier |
| JP2011-129257 | 2011-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202621032U true CN202621032U (en) | 2012-12-26 |
Family
ID=47374277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271595 Expired - Lifetime CN202621032U (en) | 2011-06-09 | 2012-06-08 | Water purifying cartridge filter and water purifier |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012254410A (en) |
| CN (1) | CN202621032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359444A (en) * | 2018-12-26 | 2020-07-03 | 宁波方太厨具有限公司 | Hollow fiber membrane filter element and packaging method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010211B (en) * | 2022-02-09 | 2023-10-17 | 甘肃农业大学 | Drinking water purifying mechanism and rural drinking water machine |
-
2011
- 2011-06-09 JP JP2011129257A patent/JP2012254410A/en active Pending
-
2012
- 2012-06-08 CN CN 201220271595 patent/CN202621032U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359444A (en) * | 2018-12-26 | 2020-07-03 | 宁波方太厨具有限公司 | Hollow fiber membrane filter element and packaging method thereof |
| CN111359444B (en) * | 2018-12-26 | 2022-03-18 | 宁波方太厨具有限公司 | Packaging method of hollow fiber membrane filter element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012254410A (en) | 2012-12-27 |
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