CN1840484A - Method for cleaning water purifier - Google Patents
Method for cleaning water purifier Download PDFInfo
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- CN1840484A CN1840484A CN 200610009275 CN200610009275A CN1840484A CN 1840484 A CN1840484 A CN 1840484A CN 200610009275 CN200610009275 CN 200610009275 CN 200610009275 A CN200610009275 A CN 200610009275A CN 1840484 A CN1840484 A CN 1840484A
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- fiber membrane
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Abstract
The invention provides a water purifier cartridge capable of washing hollow fiber membranes lowered in function to restore the function thereof and capable of suppressing the running cost of water purifying treatment, and a water purifier housing the same. The water purifier cartridge is equipped with a hollow fiber membrane element formed by bundling both end parts of a large number of hollow fiber membrane bent into a U-shape by a potting material so as to hold the open state of the end parts of the hollow fiber membrane and a cylindrical case for hollow fiber membranes surrounding the hollow fiber membrane. The hollow fiber membrane element is attached to the case for the hollow fiber membranes in a detachable manner so as to hold the region between the primary and secondary sides of the hollow fiber membrane.
Description
The application divides an application for following application:
The applying date of original application (international filing date): on September 3rd, 2002
The national applications of original application number: 02817217.5 (international application no: PCT/JP02/08929)
The denomination of invention of original application: purify the purging method of considering tube and water purifier and water purifier
Technical field
The present invention relates to be loaded on dismantledly in the water purifier, be used for the water purification filter cylinder of purified tap water etc. and the purging method of water purifier and water purifier.
Background technology
In the past, because water resource pollution and to the demand of good to eat water adopts water purifier to water purification from the beginning.As everyone knows, the water purifier as such has the function that sorbing materials such as utilizing gac is removed the chlorinated lime flavor of tap water, musty and three methyl halides etc., and utilizes the porousness hollow fiber membrane to remove the function of degerm class, impurity component etc.
As an example of this kind water purifier, can enumerate water purifier 1 as the direct type of the sort of water tap of Figure 18.This water purifier 1 utilizes joint 3 and set collar 4 to be fixed on the water tap 2, by operation change lever 5, by convertible former water of the throw-over gear portion that is loaded on water purifier 1 inside and water purification.In the filter cylinder cover 7 of water purifier 1, the water purification filter cylinder is housed.In this water purifier 1, as change lever 5 is transformed into the water purification side, former water is flowed into from water tap 2, then former water is introduced into the water purification filter cylinder by throw-over gear portion, flows out to the below by pure water inlet after becoming water purification by its inner filtering material.
Figure 19 is the sectional view of an example of the used water purification filter cylinder of expression water purifier.This water purification filter cylinder 6 is equipped with: end face is provided with sintering filter screen 11 in the wings, end face forms the cylinder-like shell 13 of the cap with pure water inlet 12 forwardly; The dividing plate 14 that shell 13 inside is divided into sintering filter screen 11 sides and pure water inlet 12 sides; Be filled in shell 13 sintering filter screen 11 sides sorbing material 15 and in pure water inlet 12 sides of shell 13, with a plurality of hollow fiber membranes of packaged material 17 fixed.Herein, hollow fiber membrane 16 usefulness packaged materials 17 are fixed on the shell 13, and make the both ends of a plurality of hollow fiber membranes 16 that bend to the U font keep the open state of hollow fiber membrane 16 ends.
In this water purification filter cylinder 6, former water is introduced in the water purification filter cylinder 6 by sintering filter screen 11.Flow into the former water in the water purification filter cylinder 6, by sorbing material 15, dividing plate 14, hollow fiber membrane 16, in the process of passing through, be cleaned in order.Former water is cleaned the water purification that the back obtains, and is discharged to the outside of water purification filter cylinder by the pure water inlet 12 of water purification filter cylinder 6.
Carried out the purificating raw water processing of for some time with water purifier 1 after with this water purification filter cylinder 6, also relevant with the degree of former water dirt with the processing water yield, can adhere to, pile up bacterium class, impurity component etc. on the surface of hollow fiber membrane 16 (primary side), cause hollow fiber membrane 16 that mesh takes place and stop up.As cause this state, can only recover the function of hollow fiber membrane 16 with the method for cleaning hollow fiber membrane 16 surfaces.
Yet hollow fiber membrane 16 is to be fixed in the shell 13 with packaged material 17, and, owing to shell 13 generally can not be cut apart, so can not clean the surface of hollow fiber membrane 16.For this reason, mesh at hollow fiber membrane 16 stops up, when the function of hollow fiber membrane 16 significantly goes down, even the removing ability of sorbing material 15 also remains, each water purification filter cylinder 6 have to change into new, and this is the reason that the purifying treatment operating cost of water purifier 1 significantly improves.
For the mesh that prevents hollow fiber membrane stops up, on Japanese kokai publication hei 8-89948 communique, announced that a kind of the injection from the hollow fiber membrane secondary side pour in down a chimney the method that liquid is removed the tamper on hollow fiber membrane surface.But,, might pollute the inner face of hollow fiber membrane on the contrary owing to the secondary side of this method from hollow fiber membrane directly pours into the former water of pollutional condition.
In addition, in the Japanese kokai publication hei 8-84989 communique, announced a kind ofly to have a plurality of hollow fiber membrane modules and utilize the filtered water of a hollow fiber membrane module other hollow fiber membrane module to be made the method for reverse cleaning., this method be because of must there being a plurality of hollow fiber membrane modules, so the problem that the part number increases when existing filter house to become Datong District.
Finished the present invention in view of above situation, the objective of the invention is to, provide a kind of and can clean the water purification filter cylinder of the operating cost that makes its recovery, the processing of inhibition purificating raw water and the purging method of water purifier and water purifier hypokinetic hollow fiber membrane.
Summary of the invention
In order to achieve the above object, a kind of water purification filter cylinder provided by the invention, be equipped with the hollow fiber membrane shell of the tubular of hollow fiber membrane module and the above-mentioned hollow fiber membrane of encirclement, described hollow fiber membrane module have the hollow fiber membrane of a plurality of U of bending to word shapes and the both ends of this hollow fiber membrane in conjunction with bunchy and keep the packaged material of the open state of hollow fiber membrane end, above-mentioned hollow fiber membrane module is installed on hollow fiber membrane dismantledly with shell and keep the primary side of hollow fiber membrane and the hydraulic seal state between the secondary side.
Utilize above-mentioned water purification filter cylinder, can clean hypokinetic hollow fiber membrane and make its recovery, suppress the running cost that purificating raw water is handled.
In above-mentioned water purification filter cylinder, be preferably in above-mentioned hollow fiber membrane with the connection means are set on the shell, in the side of above-mentioned packaged material any mode of utilizing in engage thread, bayonet socket mode, the flange mode is set preferably, is connected the transom that means match with above-mentioned.
In above-mentioned water purification filter cylinder, be equipped with the adsorption filtration body of sorbing material with the shell sorbing material interior with being loaded on shell, be connected the end of above-mentioned hollow fiber membrane dismantledly with shell, meanwhile, for the sorbing material that is configured in this sorbing material shell can freely be changed, be preferably on this sorbing material shell detachable lid is set.As the water purification filter cylinder utilizing, can utilize the adsorption treatment of the former water that sorbing material does simultaneously, and, also can pull down the adsorption filtration body as required.Have again,, also can freely change at the sorbing material that the sorbing material enclosure is equipped with as detachable lid is set on the sorbing material shell.
In addition, above-mentioned sorbing material is preferably under the state that is filled to bag that can be permeable, is loaded into sorbing material with in the shell.As the water purification filter cylinder utilizing, can easily carry out the transposing of sorbing material.
In addition, in order to achieve the above object, the invention provides the water purifier that above-mentioned water purification filter cylinder is housed.
As utilize above-mentioned water purifier of the present invention, can suppress the running cost of clean water treatment.
And, in order to achieve the above object, the invention provides another kind of water purifier, this water purifier has under the hollow fiber membrane terminal part still keeps the situation of open state, be fixed on the hollow fiber membrane module of an end of cylindrical container, the hollow fiber membrane packing fraction of this hollow fiber membrane module is 20～60%, is provided with the scavenging solution import and the scavenging solution relief outlet that are used for cleaning this hollow fiber membrane outside surface on this cylindrical container.
In above-mentioned water purifier, the import of above-mentioned scavenging solution also is an original water inlet simultaneously preferably.As the water purifier utilizing can make its structure become more simple.
In addition, above-mentioned scavenging solution relief outlet is preferably disposed near the lateral hollow fiber membrane fixed part of above-mentioned cylindrical container.Utilize such water purifier, scavenging solution can flow into whole hollow fiber membrane, and at the most susceptible to plugging root of hollow fiber membrane, the water (flow) direction of scavenging solution is changed, and its result can effectively clean root, and the cleaning performance of scavenging solution is improved more.
In above-mentioned water purifier, be preferably in the upstream of above-mentioned hollow fiber membrane module, the configuration sorbing material utilizes such water purifier, can carry out diversified water and purify.
In above-mentioned water purifier, preferably have make scavenging solution along corresponding with the central shaft of above-mentioned cylindrical container circumferentially, at least in the outside surface mobile means of the hollow fiber membrane of part.
In addition preferably, the means that above-mentioned scavenging solution flows are made of tabular component, and have the scavenging solution passage that relative tabular component tilts, utilize such water purifier can form circumferential flowing easily.
Moreover, above-mentioned tabular component preferably be configured in hollow fiber membrane the upstream and around at least a side.Utilize such water purifier, can touch circumferential current reliably hollow fiber membrane.
In above-mentioned water purifier, be preferably in the upstream of above-mentioned hollow fiber membrane module, the prefilter that configuration mesh is big than hollow fiber membrane.Utilize such water purifier, can prolong the life-span of hollow fiber membrane more.
In addition, above-mentioned prefilter preferably is configured to detachable.
In above-mentioned water purifier, be set up in parallel a plurality of above-mentioned hollow fiber membrane modules, preferably when a hollow fiber membrane module was cleaning, other hollow fiber membrane module can filter.Utilize such water purifier, in cleaning, also can filter, and compare during with a hollow fiber membrane module, can make filter life become longer.
In above-mentioned water purifier, at least one means are arranged preferably in instrumentation accumulation filtration time, accumulation filtering traffic, filtration flow-rate and the filter pressure.Utilize such water purifier, but filter, set the index that filterableness is recovered while cleaning.
Moreover, in order to achieve the above object, the invention provides another kind of water purifier, this water purifier have make scavenging solution along the cylindrical container central shaft circumferentially, the outside surface mobile means of at least a portion hollow fiber membrane in being disposed at the hollow fiber membrane module of cylindrical container inside.
In addition, in order to achieve the above object, the invention provides a kind of purging method of water purifier, this water purifier has the hollow fiber membrane module that the not end of being fixed in cylindrical container one end and hollow fiber membrane still keeps open state, the hollow fiber membrane packing fraction of this hollow fiber membrane module is 20～60%, on this cylindrical container, be provided with the scavenging solution import and the scavenging solution relief outlet that are used for cleaning this hollow fiber membrane outside surface, this purging method is supplied with former water from above-mentioned scavenging solution import, after current flow through the hollow fiber membrane surface, discharge from the scavenging solution relief outlet.
In above-mentioned purging method, be preferably at least a portion hollow fiber membrane outside surface, to make scavenging solution be that circumferential direction flows along the relative central shaft of cylindrical container.
Particularly, preferably the scavenging solution passage by being provided with on the direction that tabular component tilts relatively makes the circumferential flow of above-mentioned scavenging solution along above-mentioned cylindrical container.Utilize such purging method, can form circumferential flowing easily.At this moment, as above-mentioned tabular component be configured in hollow fiber membrane the upstream and around at least one side, to hollow fiber membrane and Yan Yinneng touches the current that make progress in week reliably, then better.
In addition, in order to achieve the above object, the invention provides a kind of purging method of water purifier, this water purifier has the hollow fiber membrane module that the not end of being fixed in cylindrical container one end and hollow fiber membrane still keeps open state, the hollow fiber membrane packing fraction of this hollow fiber membrane module is 20～60%, on this cylindrical container, be provided with the scavenging solution import and the scavenging solution relief outlet that are used for cleaning this hollow fiber membrane outside surface, this purging method is supplied with liquid medicine from above-mentioned scavenging solution import, after keeping specific time, discharge from above-mentioned scavenging solution relief outlet.
Above-mentioned liquid medicine preferably contains the aqueous solution of any soup in hydrochloric acid, citric acid, acetic acid, household detergent, the hypochlorite.These aqueous solution can effectively clean the hollow fiber membrane module, and obtain easily.
In above-mentioned purging method, preferably discharge above-mentioned liquid medicine from above-mentioned scavenging solution relief outlet after, supply with former water from above-mentioned scavenging solution import again, after current flow through the hollow fiber membrane surface, discharge from above-mentioned scavenging solution relief outlet.
In above-mentioned purging method, be preferably in the upstream configuration mesh prefilter big of above-mentioned hollow fiber membrane module than hollow fiber membrane.
Best above-mentioned prefilter can be installed and removed, and cleans after pulling down.
In above-mentioned purging method, preferably at least one in instrumentation accumulation filtration time, accumulation filtering traffic, filtration flow-rate, the filter pressure when wherein any one reaches the value of prior setting, cleans automatically.
In addition, in above-mentioned purging method, preferably scavenging solution is supplied with in above-mentioned scavenging solution import, make current flow through the hollow fiber membrane surface, discharge by above-mentioned scavenging solution relief outlet on one side,, meanwhile also filter Yi Bian carry out the cleaning of hollow fiber membrane, the filtration water yield or the filtration flow-rate of instrumentation when beginning to clean stops to clean when filtered water amount or filtration flow-rate reach the value of prior setting.
Description of drawings
Fig. 1 is the sectional view of an example of expression water purification filter cylinder of the present invention.
Fig. 2 is the sectional view of other examples of hollow fiber membrane in the expression water purification filter cylinder of the present invention.
Fig. 3 is separated into the hollow fiber membrane of Fig. 2 for expression the synoptic diagram of the state of hollow fiber membrane module and hollow fiber membrane usefulness shell.
Fig. 4 is the sectional view of an example of expression water purifier of the present invention.
Fig. 5 represents the stereographic map of the example of the tabular component that the scavenging solution passage is arranged that the present invention uses.
Fig. 6 represents the stereographic map of another example of tabular component that the scavenging solution passage is arranged that the present invention uses
Fig. 7 represents the stereographic map of another example of tabular component that the scavenging solution passage is arranged that the present invention uses
Fig. 8 represents the stereographic map of another example of tabular component that the scavenging solution passage is arranged that the present invention uses
Fig. 9 represents the stereographic map of an example of the scavenging solution passage that uses on the water purifier of the present invention
Figure 10 represents the stereographic map of another example of the scavenging solution passage that uses on the water purifier of the present invention
Figure 11 represents the stereographic map of another example of tabular component that the scavenging solution passage is arranged that the present invention uses
Figure 12 represents the sectional view of another example of water purifier of the present invention
Figure 13 is the stereographic map of the hollow fiber membrane shown in Figure 12 with shell
Figure 14 is the sectional view of the hollow fiber membrane shown in Figure 12 with the tube central axis direction of shell
Figure 15 is a sectional view shown in Figure 12 and the vertical direction of tube central shaft hollow fiber membrane usefulness shell
Figure 16 is the sectional view of another example of expression water purifier of the present invention
Figure 17 is provided with the sectional view of an example of a plurality of hollow fiber membrane modules that use on water purifier of the present invention for expression.
Figure 18 represents the stereographic map of an example of water purifier in the past
Figure 19 is the sectional view of an expression example of water purification filter cylinder in the past
Embodiment
Below the purging method of water purification filter cylinder of the present invention, water purifier and water purifier is elaborated.At first the water purification filter cylinder is explained.
Fig. 1 is the sectional view of an example of expression water purification filter cylinder of the present invention.This water purification filter cylinder 10 is divided into roughly, and two parts being made the hollow fiber membrane filtering bodies 18 of filtration treatment and made the adsorption filtration body 19 of adsorption treatment by sorbing material 15 by hollow fiber membrane 16 constitute.Specifically, its structure roughly has: make hollow fiber membrane 16 ends keep open state ground utilize packaged material 17 both ends of a plurality of hollow fiber membranes 16 that bend to the U font are being opened with shell 22, covering hollow fiber membrane 16 ends in conjunction with the hollow fiber membrane module 21 of bunchy, the tubular hollow fiber membrane that surrounds hollow fiber membrane 16 mouth hollow fiber membrane module 21 front end face and be formed with the cap 23 of pure water inlet 12 and the adsorption filtration body 19 that is connected with shell 22 with hollow fiber membrane at central part.
In addition, in the side of the packaged material 17 of hollow fiber membrane module 21 tubular transom 25 is set, near the outer wall spiral shell the portion is carved with screw thread 26 in its back-end, and near the outer wall spiral shell leading section is carved with screw thread 27.
In addition, adsorption filtration body 19, its structure has: sorbing material with shell 28, be filled into can be permeable bag 29 states under be accommodated in sorbing material with the sorbing material shell 28 in 15, be located at transom that sorbing material forms sintering filter screen 11 with the aft end face and the embedding of shell 28 and cover 34 and be arranged on the dividing plate 14 that sorbing material is used shell 28 front end faces.
Hollow fiber membrane module 21, screw thread 26 by its transom 25 and spiral shell are engraved in hollow fiber membrane and twist with near the negative thread 30 (being connected means) of the inner-wall surface the leading section of shell 22 and close, and are installed in dismantledly and in the hollow fiber membrane usefulness shell 22 with can keeping the primary side of hollow fiber membrane 16 and the hydraulic seal state between the secondary side.Cap 23 in addition, and the screw thread 27 of the negative thread 31 that carves by wall spiral shell within it and the transom 25 of hollow fiber membrane module 21 is twisted and closed, and is installed in dismantledly on the hollow fiber membrane module 21.
In addition, adsorption filtration body 19 is engraved in sorbing material by spiral shell and is engraved in screw thread 33 stubborn close of hollow fiber membrane with near the inner-wall surface rearward end of shell 22 with screw thread near the outside wall surface the leading section of shell 28 32 and spiral shell, is connected hollow fiber membrane dismantledly with on the shell 22.In addition, by screw thread 36 stubborn the closing that the negative thread 35 and the sorbing material of ring-type transom lid 34 set on sintering filter screen 11 outer peripheral edges are carved with institute's spiral shell near the outside wall surface the rearward end of shell 28, transom lid 34 is installed in sorbing material dismantledly with on the shell 28.
And hollow-fiber module 21 and hollow fiber membrane with the connection section of the connection section of shell 22, cap 23 and hollow fiber membrane module 21 and adsorption filtration body 19 and hollow fiber membrane with in the connection section of shell 22, clamped each O type ring 37,38,39 respectively.
Preferably can use hollow fiber membrane as hollow fiber membrane 16 by cellulose-based, polyolefin (polyethylene, polypropylene), polyethenol series, ethene, vinyl alcohol copolymer body, polyethers system, polymethylmethacrylate (PMMA) are, various materials such as polysulfones system, polyacrylonitrile based, fluorinated ethylene propylene [polytetrafluoroethylene fiber (registered trademark)] are, polycarbonate-based, polyester system, polyamide-based, Su Xiang polyamide system constitute.Wherein, during as the strength and elongation of considering film and resistance to bending, cleaning, operability and chemical proofing, preferably use the polyolefin hollow fiber membrane of polyethylene and polypropylene etc.
In addition, though there be not special the qualification, preferably the tubular fibre external diameter is 20～2000 μ m, and the aperture is 0.01～2 μ m, and voidage is 20～90%, and thickness is the hollow fiber membrane of 5～300 μ m.Have, the useful length of the hollow fiber membrane except that packaged material 17 parts can be cleaned effectively for fiber is waved again, and is preferably in more than the 10mm, and is then better more than the 20mm.As oversize, then the utilising efficiency of hollow fiber membrane reduces on the other hand, so be preferably in below the 300mm, 200mm is with next better.
Can use by urethane resin the resin that is used for fixing of formations such as Resins, epoxy, polyolefin resin as packaged material 17.
As sorbing material 15, can enumerate granular sorbing material after powdered adsorption material, this powder sorbing material granulation and fibrous sorbing material etc.As this kind sorbing material, can enumerate the sorbing material (natural zeolite, silver zeolite, acidic white earth etc.) of natural system; Synthetic system sorbing material (synthetic zeolite, antibacterial zeolite, bacterium adsorpting polymerization thing, Rock Phosphate (72Min BPL), molecular sieve, silica gel, alumino silica gel is a sorbing material, porous glass etc.) inanimate matter sorbing material and powdered activated carbon such as, fibrous activated carbon, block activated carbon, the extrusion molding activated carbon, the shaping activated carbon, the molecular adsorption resin, synthetic system granular activated charcoal, synthetics series fiber shape activated carbon, ion exchange resin, ion-exchange fiber, the resin of chelating, the fiber of chelating, super absorbent resin, high hygroscopicity fibre, oil absorption resin, the well-known sorbing material of organic system sorbing materials such as oil absorber etc.Wherein, preferably utilize outstanding activated carbon of organic compound adsorptive power such as the residual chlorine in the processed water and musty and three methyl halides.
In these materials, can or they stackedly be used in addition the material mixing more than two kinds.In addition, as sorbing material 15, also can use by the powder of sorbing material and granular solid being combined the porousness molding that forms with wedding agent.Sorbing material 15 can carry out filling by forms such as Powdered, granular, fibrous, moldinies according to the use place of water purifier and water purifying purposes.
As above-mentioned powdered activated carbon, can enumerate phyteral (timber, fiber, sawdust, charcoal, palm shell charcoal, plain ash etc.); Ature of coal (mud coal, brown coal, pitch coal, hard coal, coal Da (tar) etc.); Malthenes (petroleum residue, sulfuric acid slag (Japanese: sulfuric acid ス ラ Star ジ), oil carbon etc.); The valve waste liquid; Gas activation (water vapour, carbonic acid gas, air etc.) is done in carbonizations such as synthetic resins as required; The activated carbon of medicine activation (calcium chloride, magnesium chloride, zinc chloride, phosphoric acid, sulfuric acid, sodium hydroxide, potassium hydroxide etc.) etc.
As above-mentioned fibrous activated carbon, can enumerate a polyacrylonitrile (PAN), Mierocrystalline cellulose, phenol, carbobitumen as the precursor carbonization of raw material, activatory activated carbon etc.
As above-mentioned bag 29, as long as any bag permeable and the not sorbing material 15 by inside all can use.For example can enumerate: the fabric of the panty hose shape of formations such as nylon, Polyurethane, weave cotton cloth, cloth and silk, cancellous thin slice etc. such as non-woven fabrics.
Above-mentioned sintering filtering net 11 is the prefilters that are used for removing foreign matters such as thick rubbish bigger in the former water, sand, iron rust.This sintering filtering net 11 is porous sintered powder, be that the mixture of toner, metal-powder or these powder is filled into mould, arrive mold heated more than the powder smelting temperature, make the material that is porous after the part welding that is in contact with one another with powder particle, and the mixture of toner, metal-powder or these powder is not filled to heats in the mould and make material of sheetization etc., utilize well-known sintering method, thermal sintering and obtaining.
As the material of sintering filter screen 11, can enumerate such as inorganic, metallic substance of the resin material of the polyolefin resin of polyethylene, polypropylene etc., polystyrene resin, acrylic resin, fluorine resin etc., C, Si, Mn, P, S, Cr, Mo, Nb, Ta, B, V, Ni, Cu, Al, Ti, Fe, Co and their alloy etc. etc.Can not produce during in light weight when wherein, making the sintering filter screen, recycling, burning disposal yet objectionable impurities, aperture easily the polyolefin resin of control be well suited for using.
In addition, as replacement sintering filter screens 11 such as prefilters also available non-woven fabrics.
As aforementioned barriers 14 so long as do not leak activated carbon particles, can high-level efficiency permeable dividing plate get final product.For example can use to allow non-woven fabrics, nylon mesh etc. embed moulding resin board of bonding or welding etc.
, be preferably in and consider processibility etc. and use the plastics class with shell 22, cap 23 and sorbing material material as above-mentioned hollow fiber membrane with shell 28.Owing to constitute these members with transparent or semitransparent member, therefore can confirm the inner states such as pollution of hollow fiber membrane 16.
In addition, the high-temperature-hot-water more than 80 ℃ that can directly utilize water-heater to provide.Utilize softening temperatures such as polypropylene, polyphenylene oxide, polymethoxy, polycarbonate, ABS resin then better in this at the heat-resistant plastic more than 80 ℃.
Below the water purifier that water purification filter cylinder 10 is housed and the purging method of water purification filter cylinder 10 are described.
Water purification filter cylinder 10 changes water purification filter cylinder 6 in the past shown in Figure 19 into, can be mounted to the sort of original water purifier 1 shown in Figure 180.
Water purification filter cylinder 10 shown in Figure 1 is loaded on the water purifier 1 of Figure 18, change lever 5 is switched to the water purification side, former water is flowed into from water tap 2, former water is introduced in the water purification filter cylinder 10 by switching mechanism portion, after becoming water purification by its inside, flow out to the below by pure water inlet 9.
In the water purification filter cylinder 10 on being loaded on this water purifier 1, former water is introduced in the water purification filter cylinder 10 by sintering filter screen 11.Introduce the former water in the water purification filter cylinder 10, by sorbing material 15, dividing plate 14, hollow fiber membrane 16, in this process, be cleaned in order.The water purification that obtains behind the purificating raw water is discharged to the outside of water purification filter cylinder 10 from the pure water inlet 12 of water purification filter cylinder 10.
Cleaning when plug-hole takes place the hollow fiber membrane 16 of hollow fiber membrane module 21 is carried out as follows.
At first, pull down water purification filter cylinder 10 from water purifier, then, make the transom 25 and the hollow fiber membrane of hollow fiber membrane module 21 use shell 22 towards reverse direction rotation each other, hollow fiber membrane module 21 and hollow fiber membrane shell 22 are separated, the hollow fiber membrane 16 that exposes is dipped in the free of contamination water, rubs and washes hollow fiber membrane 16.Use backwash and medicine to clean rubbing also can merge when washing in addition.
When cleaning, can use medicine hydrochloric acid, citric acid, acetic acid, household detergent, clorox, chlorinated lime, SYNTHETIC OPTICAL WHITNER etc. to cleaning effective medicine.
Also can backwash hollow fiber membrane 16, that is to say, can make sewage 1 side of 2 side inflows from hollow fiber membrane 16.Specifically, hollow fiber membrane module 21 and hollow fiber membrane with shell 22 separately after, can receive pure water inlet 12 to flexible pipe, by effusive water in this flexible pipe is carried out from 1 side of 2 side inflows of hollow fiber membrane 16.
In addition, adsorption filtration body 19, owing to be connected the end of hollow fiber membrane dismantledly with shell 22, so adsorption filtration body 19 can easily be pulled down.
During the water purification filter cylinder of the hollow fiber membrane filtering bodies 18 after only using adsorption filtration body 19 to be removed, hose connection to pure water inlet 12, by with the former water of the effusive pollution of flexible pipe from then on 1 side of 2 side inflows, can carry out former water purification by hollow fiber membrane 16.The water purification filter cylinder that this hollow fiber membrane filtering bodies 18 is only arranged, in area and the on-the-spot the sort of water purifying place that is difficult to guarantee of disaster that water supply pipe is not popularized as yet, it can be used as water purifier individually and uses.
As mentioned above, in this water purification filter cylinder 10, because hollow fiber membrane module 21 is installed in hollow fiber membrane dismantledly with in the shell 22, so hole plug when taking place in the hollow fiber membrane 16 of hollow fiber membrane module 21, can separate hollow fiber membrane module 21 and hollow fiber membrane with shell 22, after exposing hollow fiber membrane 16, clean this hollow fiber membrane 16.
In addition, because the inner-wall surface spiral shell at hollow fiber membrane shell 22 is carved negative thread 30 (connection means),, be provided with negative thread 30 and twist the transom 25 that closes in the side of packaged material 17, therefore, hollow fiber membrane module 21 and hollow fiber membrane just become easy with the mounting or dismounting of shell 22.
Though the ability at hollow fiber membrane 16 still has leeway, when the function of sorbing material 15 obviously descends, also can pull down with the detachable adsorption filtration body 19 on shell 22 1 ends being connected hollow fiber membrane, change new back use into.At this moment, sorbing material 15 is removed behind the negative thread 35 that unclamps transom lid 34.
Sorbing material 15 as be loaded into sorbing material with in the shell 28 under the state that is filled into bag 29 that can be permeable, then the sorbing material 15 in the bag 29 ground transposing adsorption filtration body 19 one by one can make the transposing of sorbing material 15 become easy.
In addition, water purification filter cylinder of the present invention, as long as the hollow fiber membrane module with hollow fiber membrane 16 and packaged material 17 is with the state of hydraulic seal state between the primary side that keeps hollow fiber membrane and the secondary side and be installed in hollow fiber membrane dismantledly with in the shell 22, just be not subjected to the restriction of illustrated example.Moreover method of attachment also is not limited to engage thread, can use the bayonet socket mode, well-known methods such as flange mode.In addition, sealing method also is not limited to O type ring mode, can use well-known methods such as seal liner mode, V-type ring mode.
Have again, the part of hollow fiber membrane filtering bodies 18 for example, as shown in Figure 2, hollow fiber membrane also can have same gradient cone surface 43,44 with the side of the packaged material 17 of the inner-wall surface of shell 42 and hollow fiber membrane module 41.If hollow fiber membrane has such cone surface 43,44 with the side of shell 42 and packaged material 17, even so by former water, hollow fiber membrane module 41 can not deviate from the front end face of shell 42 from hollow fiber membrane yet, and as shown in Figure 3, by with hollow fiber membrane module 41 pushing tow rearward, can easily make hollow fiber membrane module 41 and hollow fiber membrane separately with shell 42.
In addition, sorbing material 15 not necessarily is necessary to be filled in the bag 29, and also directly filling is advanced sorbing material with in the shell 28.
Also have, in water purification filter cylinder of the present invention, not necessarily be necessary, use hollow fiber membrane 16 also can in the water purification filter cylinder separately with sorbing material 15.
Below water purifier of the present invention is described.
Fig. 4 is the sectional view of expression water purifier of the present invention.In addition, the mark FI among the figure represents rate of flow meter, and PI represents tensimeter.
This water purifier, roughly by hollow fiber membrane module 110 and hold it cylindrical container 131 and cap 132, be configured in hollow fiber membrane between hollow fiber membrane module 110 and the cylindrical container 131 with shell 122 be configured in hollow fiber membrane and form with the module cap 123 between shell 122 and the above-mentioned cap 132.
Above-mentioned hollow fiber membrane module 110, with packaged material 17 set bunchys and keep under the state of open state of hollow fiber membrane 116 ends, the hollow fiber membrane that is fixed on tubular is with on the shell 122 at its both ends of a plurality of hollow fiber membranes 116 that bend to the U font.This hollow fiber membrane module 110 is loaded on the module cap 123 with shell 122 and elastomerics 119 by hollow fiber membrane.Module cap 123 is loaded on the cap 132 by elastomerics 120.Cap 132 is loaded on the cylindrical container 131 by elastomerics 133.In Fig. 4, utilize packaged material 117 in addition, be loaded on the module cap 123 with shell 122 and elastomerics 119 by hollow fiber membrane by the hollow fiber membrane 116 of set bunchy.But also can utilize packaged material 117 directly being loaded on the module cap 123 by the hollow fiber membrane 116 of set bunchy.
The hollow fiber membrane packing fraction of hollow fiber membrane module 110, the total ratio that is hollow fiber membrane sectional area (external diameter benchmark) shared in the internal diameter sectional area of cylindrical container 131 is as too high, just be difficult to remove the stores of invading between the hollow fiber membrane by cleaning, on the other hand as low excessively, the then low and filtration capacity decline of aggregation efficient, so be necessary to be located between 20～60%, preferably 30～50%, better as 35～47.5%.
As the material of cylindrical container 131, as considering resistance to pressure etc., preferably metal, especially stainless steel the best in addition, also can be used the plastics class.Using the plastics time-like, considering, using softening temperatures such as polypropylene, polyphenylene oxide, polymethoxy, polycarbonate, ABS resin then better at the heat-resistant plastic more than 80 ℃ from the high-temperature-hot-water this point more than 80 ℃ that can directly use water-heater to provide.Have, cylindrical container 131 can be confirmed the inner states such as pollution of hollow fiber membrane 116 by constituting with transparent or semitransparent material in whole or in part again.
In Fig. 4, hollow fiber membrane is with shell 122, because of making its contraction in length, thereby becomes tea ceremony with justifying bamboo scopiform shape, but also can make longlyer than the length of hollow fiber membrane 116, and can form the hole that water flowing is used in the side.
In addition, in Fig. 4, improve operability by dress catch net 118, but also can be state at unprotect net 118.Have, concerning hollow fiber membrane shell 122, catch net 118 also can make detachable again.
In addition, at the upstream side of hollow fiber membrane module 110, as the mesh prefilter 141 bigger than hollow fiber membrane 116 is set, owing to can remove foreign matters such as thick rubbish bigger in the former water, sand, iron rust, so the burden that is added on the hollow fiber membrane 116 reduces, thereby can prolong the life-span of hollow fiber membrane 116.Prefilter 141 is made of the porousness sintered powder, can suitably use the sintered filter and pottery, non-woven fabrics, reticulation etc. of plastics and metal.
As prefilter 141 is installed dismantledly, then just capable of washing owing to only pulling down prefilter 141, stop up so can more effectively prevent the mesh of hollow fiber membrane 116.
The cleaning of prefilter 141, both used water is dashed, ultrasonic wave is wiped, baked, applies to brush etc., and crop puts in order washes, and also be immersed in it so long and make matting in the liquid medicine.
In addition, as in the upstream of hollow fiber membrane module 110, detachable sorbing material 142 is set owing to can do more kinds of water purifications, better certainly.
As sorbing material 142, can use the material of above explanation, wherein, preferably use the good activated carbon of adsorptive power to organic compound such as the residual chlorine in the processed water and musty, three methyl halides.In order to align hardness (Ca, Mg), remove delead, to remove nitric acid nitrite nitrogen gas, preferably make spent ion exchange resin.The most handy zeolite when removing arsenic.The most handy sequestrant when removing boron, fluorine.
In addition, as sorbing material 142, also can use the porousness molding that the powder of sorbing material, granular solid etc. is formed in conjunction with the back by with wedding agent.And, can mix the sorbing material more than 2 kinds or overlapping use.
In the water purifier that said structure is formed, by on the outside surface of the hollow fiber membrane 116 of at least a portion of hollow fiber membrane module 110, the means of scavenging solution along the circumferential flow corresponding with the tube central shaft of cylindrical container 131 that make being set, when filtering former water, not with doubting, even scavenging solution also can peel the tamper of the bacterium class that is deposited in hollow fiber membrane 116 outside surfaces, impurity component etc. effectively when flowing.In addition, scavenging solution as uses former water so long as limpid liquid gets final product, and because of cleaning simply, that is good certainly.
Moreover, the corresponding circumferential fluid of tube central shaft of said herein and cylindrical container 131, finger when the tube central axis direction of cylindrical container 131 is observed at the liquid of circumferential flow, be not limited to and a fluid of the relative vertical in-plane of central shaft, also comprise and tube central shaft relative tilt direction and spiral helicine fluid.In addition, when scavenging solution when the cylindrical container 131, scavenging solution from the suction side to outlet side, also comprise that a part becomes reciprocal fluid.
Scavenging solution import 135 and rinse liquid outlet 134 are set on cylindrical container 131, when making the scavenging solution that injects from scavenging solution import 135 along after as the outside surface of hollow fiber membrane 116, the circumferential flow corresponding with a central shaft, during from rinse liquid outlet 134 discharges, can go up the tamper of piling up to hollow fiber membrane 116 surfaces peels, be discharged to outside the hollow fiber membrane module 110, so the filtering function of hollow fiber membrane 116 is recovered.
When scavenging solution flowed at the outside surface of hollow fiber membrane 116, as Fig. 5～shown in Figure 8, the scavenging solution passage 145 by relatively being located at by the top and bottom with tabular component 143 on the vergence direction can make the circumferential flow of scavenging solution at cylindrical container 131.Scavenging solution passage 145 almost disperses in cylindrical container 131 inside equably for making scavenging solution, shown in Fig. 5～8, preferably makes its integral body at tabular component 143 be decentralized configuration equably.In addition, the arrow of Fig. 5～Fig. 8 is represented the flow direction of water.
As the shape of scavenging solution passage 145, both opened angling hole as shown in Figure 9 almost parallel, also can open trapezoidal hole as shown in figure 10.And, but scavenging solution passage 145 both halfway turn round and also can do many places shuntings.
Above-mentioned tabular component 143, both configurable in the upstream of hollow fiber membrane module 110, around the also configurable hollow fiber membrane module 110.And, be configured in upstream and out of question all around.When around hollow fiber membrane module 110, disposing, as shown in figure 11, the hole that hollow fiber membrane module 110 connects is set, preferably tabular component 143 and hollow fiber membrane module 110 is configured to concentric circles at the central part of tabular component 143.
In addition, tabular component 143 both can be configured to vertical with the tube central shaft of cylindrical container 131, also can be configured to.And its shape is spiral pulpous state or spirrillum also.
As another example that makes scavenging solution in the means of the circumferential flow of the cylindrical container 131 of the outside surface of being located at hollow fiber membrane 116, as Figure 12～shown in Figure 15, for around the hollow fiber membrane 116 that surrounds hollow fiber membrane module 110 whole, hollow fiber membrane can be set with shell 122, the scavenging solution passage 145 of vergence direction also can be set on shell 122 at hollow fiber membrane.Arrow among Figure 12～Figure 15 is represented the flow direction of water.
In addition, as shown in Figure 4, as near the side the hollow fiber membrane fixed part of cylindrical container 131 scavenging solution relief outlet 134 is set, when scavenging solution can be flowed through whole hollow fiber membrane 116, owing to the water (flow) direction of scavenging solution is changed at hollow fiber membrane 116 the most susceptible to plugging roots, so can effectively clean its root, that is good certainly.The quantity of scavenging solution relief outlet 134, as long as 1 just can be cleaned, but also configurable more than 2 or 2.
In addition, scavenging solution import 135, with the scavenging solution relief outlet 134 the same sides that also can be arranged on cylindrical container 131, but, as with original water inlet 140 dual-purposes, its structure can be more simple, that is good certainly.
As shown in Figure 4, the switch-valve 138 that cleans usefulness is set again, when filtering, under switch-valve 138 closing conditions of cleaning usefulness on scavenging solution relief outlet 134, inject former water from original water inlet 135, former water is filtered the back at hollow fiber membrane 116 and is flowed out by pure water inlet 112.
To this, when cleaning, open the switch-valve 138 that cleans usefulness, inject scavenging solution by the scavenging solution import 135 of double as original water inlet 140, because this scavenging solution is from 134 discharges of scavenging solution relief outlet, so can clean the outside surface of hollow fiber membrane 116.At this moment, filter required pressure by hollow fiber membrane 116 and want high from the required pressure of scavenging solution relief outlet 134 drainings, because many former water are discharged by scavenging solution relief outlet 134, the water yield that is filtered is few again, may not need to stop up pure water inlet 112.The supply of the scavenging solution that uses during cleaning is as the long-pending 0.01～5L/cm that is made as of the per unit internal diameter type section of this cylindrical container 131
2Timesharing, owing to can carry out the cleaning of face effectively, that is good certainly, as reaches 0.03～3.5L/cm
2Branch is then better, reaches 0.1～1.5L/cm
2Divide and also will get well.
In addition, also can be different with the structure of Fig. 4, in the side of cylindrical container 131 original water inlet 140 is set.At this moment, make the shunting of former water supply line, discharge scavenging solution or, can clean by the scavenging solution relief outlet 134 other with original water inlet 140 is set.
In addition, when cleaning was loaded on hollow fiber membrane 116 on the water purifier of being made up of said structure, the strong liquid medicine of cleaning force beyond the also available former water cleaned.When using liquid medicine,, can effectively clean by make hollow fiber membrane 116 contact liquid medicine at specific time.When using liquid medicine to clean, at first to close the cleaning switch-valve 138 of scavenging solution relief outlet 134, and close former taps valve 136, open scavenging solution and inject switch-valve 139, by the scavenging solution inlet 140 injection liquid medicine of double as original water inlet 135.And, place the specified time, make hollow fiber membrane 116 contact liquid medicine after, discharge liquid medicine by the valve 138 of opening scavenging solution relief outlet 134, can clean hollow fiber membrane 116.
The method for implanting of liquid medicine is not done special stipulation, for example uses pumped liquid, perhaps can be configured to the position higher than hollow fiber membrane module 110 to the liquid level of liquid medicine storage tank, and utilized head pressure reduction comes drug delivery water.
As long as the requirement of liquid medicine reaches the amount that liquid medicine is filled the inner degree of cylindrical container.
In addition, the time that contacts with medicine can suitably be set by the kind and the concentration of used liquid medicine.As be set at 5～60 minutes, owing to can remove hollow fiber membrane surface mesh hole plug thing, that is good certainly.
The kind of liquid medicine contains the aqueous solution of any chemical in hydrochloric acid, citric acid, acetic acid, household detergent, clorox, the chlorinated lime in this way, because cleaning performance is good, can obtain easily and at an easy rate, and that is good certainly.
In addition, clean, can disposable liquid medicine be injected into requirement, also can inject continuously in the cleaning process by liquid medicine.
As after cleaning, filtering immediately,, preferably suitably clean hollow fiber membrane module 110 because liquid medicine might be sneaked into filtrate with liquid medicine.At this moment, the original water inlet 135 that is located at the scavenging solution import 140 on the cylindrical container 131 by double as injects former water, as discharging the former water that contains scavenging solution from scavenging solution relief outlet 134, liquid medicine is proceeded to clean, macaroni yarn face also capable of washing, better because of cleaning performance, that is better certainly, the cleaning of being done by former water is as long as undertaken just passable by above-mentioned condition.
By the cleaning to hollow fiber membrane 116, owing to wash the bur that is deposited in hollow fiber membrane 116 surfaces off, filterableness is restored, and instrumentation filters the water yield, and at least one item in filtration flow-rate, the filter pressure can filter used as hollow fiber membrane and recover index.
Specifically, rate of flow meter, tachograph, the tensimeter of vane type, positive displacement, electromagnetic type are set, mensuration is filtered the water yield, filtration flow-rate, filter pressure from the accumulation that begins to clean, and can stop in the moment that these data based working conditionss reach the value of prior setting cleaning.In addition, for they are controlled automatically, adopt the polarity formula measuring instrument optimum.
In addition, in Figure 12, cylindrical container 131, its structure does not comprise the filtering material beyond the hollow fiber membrane 116, but can put into cylindrical container 131 to sorbing materials such as activated carbon 142 and hollow fiber membrane 116 as filtering medium.For example, as shown in figure 16, hollow fiber membrane with the inboard cylindrical container 131 of the arranged outside of shell 122 ', in its outside outside cylindrical container 131 is set again, inboard cylindrical container 131 ' on check valve 144 is set, but inboard cylindrical container 131 ' and outside cylindrical container 131 between filling sorbing material 142.In having the water purifier of this structure, when cleaning the outside surface of hollow fiber membrane 116, do not allow wash liquid stream to sorbing material 142 sides, can clean the outside surface of hollow fiber membrane 116 selectively.Although the ability of hollow fiber membrane 116 remains leeway, when the function of sorbing material 142 significantly descends, can only change sorbing material 142.In addition, as above-mentioned sorbing material 142, can use with reference to illustrative sorbing material 15 identical materials of Fig. 1 of front.Have again, the water (flow) direction when the black arrow among Figure 16 is represented to clean, white arrow represents that then former water and water purifying flow.
At hollow fiber membrane flushing channel 145 with vergence direction the same shown in Figure 12 waits can be set on shell 122.
In addition, can be set up in parallel as shown in figure 17 a plurality of hollow fiber membrane modules 210 and 210 ', when a hollow fiber membrane module 210 being cleaned as forming, can be to the filtering structure of another hollow fiber membrane module 210 ' carry out, then in cleaning, also can carry out the filtering while, with hollow fiber membrane module 210 or 210 ' compare when being, because filter life is longer, that is good certainly.No matter only use during filtration a hollow fiber membrane 210 or 210 ', or use 2 hollow fiber membrane module 210 and 210 ' all to filter simultaneously.
When filtering, close the hollow fiber membrane that is arranged on a side with the cleaning on the scavenging solution relief outlet 234 of shell 231 with opening-closing valve 238, open be arranged on the opposing party's hollow fiber membrane with shell 231 ' on scavenging solution relief outlet 234 ' on cleaning with opening-closing valve 238 '.As hollow fiber membrane module 210 is injected former water, to hollow fiber membrane module 210 ' injection scavenging solution, the hollow fiber membrane module 210 a side filters by hollow fiber membrane 216, obtains filtered water by pure water inlet 212.The opposing party's hollow fiber membrane with shell 231 ', by scavenging solution relief outlet 234 ' discharge scavenging solution, to hollow fiber membrane 216 ' clean.
The possibility of industrial utilization
As described above, water purifying filter cartridge of the present invention is because hollow fiber membrane module will keep 1 side and 2 of hollow fiber membrane Hydraulic seal state between the inferior side, and be installed in dismantledly on the hollow fiber membrane shell, so in hollow fiber membrane module Hollow fiber membrane mesh when take place stopping up, the shell that hollow fiber membrane module and hollow fiber membrane are used separately exposes hollow fiber membrane, Make this hollow fiber membrane of cleaning become possibility. Utilize this method can reuse because of hollow fiber membrane, water purifying filter cartridge can be used for a long time, So can suppress the operating cost of clean water treatment.
In addition, the present invention provides the water purifier of in-built above-mentioned water purifying filter cartridge. And the present invention provides to have macaroni yarn Film is terminal to keep open state, intactly be fixed on the formed hollow fiber membrane module of an end of cylindrical container, this hollow The hollow fiber membrane pack completeness of cortina module is 20～60%, the appearance that is used for cleaning this hollow fiber membrane the setting of this cylindrical container The water purifier of other of the import of the cleaning fluid of face and the outlet of cleaning fluid. And the present invention is provided in the cylindrical container The outer surface of the hollow fiber membrane of at least a portion of the hollow fiber membrane module of section configuration is furnished with and makes cleaning fluid with cylindrical container Other water purifier of the means of the circumferential flow that central shaft is relative.
Utilize above-mentioned water purifier of the present invention can suppress clean water treatment operating cost.
In addition, the present invention provides the terminal part with hollow fiber membrane to keep open state, intactly be fixed on tubular The hollow fiber membrane module that one end of container forms, the hollow fiber membrane pack completeness of this hollow fiber membrane module is 20～60%, at this tube The cleaning of the water purifier of the cleaning fluid import be used for cleaning this hollow fiber membrane outer surface and cleaning fluid outlet is set on the shape container Method is namely injected former water by above-mentioned cleaning fluid import, after current flow to hollow fiber membrane, by the cleaning fluid outlet discharge clean The cleaning method of hydrophone.
In addition, the present invention also provides the terminal part with hollow fiber membrane to keep open state, intactly be fixed on tube The hollow fiber membrane module that one end of shape container forms, the hollow fiber membrane pack completeness of this hollow fiber membrane module is 20～60%, at this Water purifier clear of the cleaning fluid import be used for cleaning this hollow fiber membrane outer surface and cleaning fluid outlet is set on the cylindrical container Washing method namely injects liquid medicine by above-mentioned cleaning fluid import, after keeping the stipulated time, is discharged by above-mentioned cleaning fluid outlet The cleaning method of water purifier.
Utilize above-mentioned cleaning method of the present invention, the hollow fiber membrane of obstruction can reuse, and can use for a long time, so energy The operating cost that suppresses clean water treatment.
Claims (10)
1, a kind of purging method of water purifier, have the not end of being fixed in cylindrical container one end and hollow fiber membrane and still keep the hollow fiber membrane module of open state, the hollow fiber membrane packing fraction of this hollow fiber membrane module is 20～60%, on this cylindrical container, be provided with the scavenging solution import and the scavenging solution relief outlet that are used for cleaning this hollow fiber membrane outside surface, it is characterized in that, this purging method is supplied with former water from above-mentioned scavenging solution import, after current flow through the hollow fiber membrane surface, discharges from the scavenging solution relief outlet.
2, the purging method of water purifier as claimed in claim 1 is characterized in that, makes scavenging solution cross the outside surface of at least a portion hollow fiber membrane along the peripheral flow of cylindrical container central shaft.
3, the purging method of the water purifier described in claim 2 is characterized in that, by being located at the scavenging solution passage of relative tabular component vergence direction, and makes the circumferential flow of above-mentioned scavenging solution along above-mentioned cylindrical container.
4, a kind of purging method of water purifier, have the not end of being fixed in cylindrical container one end and hollow fiber membrane and still keep the hollow fiber membrane module of open state, the hollow fiber membrane packing fraction of this hollow fiber membrane module is 20～60%, on this cylindrical container, be provided with and clean scavenging solution import and the scavenging solution relief outlet that this hollow fiber membrane outside surface is used, it is characterized in that, supply with liquid medicine by above-mentioned scavenging solution import, after keeping the specified time, discharge from above-mentioned scavenging solution relief outlet.
5, the purging method of the water purifier described in claim 4 is characterized in that, above-mentioned liquid medicine is to contain the aqueous solution a certain in hydrochloric acid, citric acid, acetic acid, household detergent, the hypochlorite.
6, the purging method of the water purifier described in claim 4, it is characterized in that, after above-mentioned liquid medicine is discharged from above-mentioned scavenging solution relief outlet, supply with former water from above-mentioned scavenging solution import again, after current flow through the hollow fiber membrane surface, discharge by above-mentioned scavenging solution relief outlet.
7, as the purging method of any one described water purifier in claim 1 and 4, it is characterized in that, in the upstream of above-mentioned hollow fiber membrane module, the prefilter that configuration mesh is big than the macaroni yarn fenestra.
8, the purging method of the water purifier described in claim 7 is characterized in that, above-mentioned prefilter is detachable, remakes cleaning after pulling down.
9, as the purging method of any one described water purifier in claim 1 and 4, it is characterized in that, in instrumentation accumulation filtration time, accumulation filtering traffic, filtration flow-rate and the filter pressure at least one cleans during a value that reaches prior setting therein automatically.
10, as the purging method of any one described water purifier in claim 1 and 4, it is characterized in that, with the above-mentioned scavenging solution import of cleaning solution supplying, current flow through the hollow fiber membrane surface, discharge, clean hollow fiber membrane on one side from above-mentioned scavenging solution relief outlet on one side, meanwhile filter, the filtration water yield or the filtration flow-rate of instrumentation when beginning to clean stops to clean when filtered water amount or filtration flow-rate reach the value of prior setting.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001268866A JP5072152B2 (en) | 2001-09-05 | 2001-09-05 | Water purification cartridge and water purifier |
| JP2001268866 | 2001-09-05 | ||
| JP2001-268866 | 2001-09-05 | ||
| JP2001270956A JP2003080247A (en) | 2001-09-06 | 2001-09-06 | Water cleaner and its washing method |
| JP2001270956 | 2001-09-06 | ||
| JP2001-270956 | 2001-09-06 | ||
| JP2002-177067 | 2002-06-18 | ||
| JP2002177067A JP4212024B2 (en) | 2002-06-18 | 2002-06-18 | Water purifier and cleaning method thereof |
| JP2002177067 | 2002-06-18 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028172175A Division CN1274606C (en) | 2001-09-05 | 2002-09-03 | Water-clean cartridge, water-cleaner, and washing method of water-cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1840484A true CN1840484A (en) | 2006-10-04 |
| CN1840484B CN1840484B (en) | 2010-04-21 |
Family
ID=19094789
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100092757A Expired - Fee Related CN1840484B (en) | 2001-09-05 | 2002-09-03 | Method for cleaning water purifier |
| CN2006100092761A Expired - Fee Related CN1847162B (en) | 2001-09-05 | 2002-09-03 | Water purifier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100092761A Expired - Fee Related CN1847162B (en) | 2001-09-05 | 2002-09-03 | Water purifier |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5072152B2 (en) |
| CN (2) | CN1840484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711946A (en) * | 2010-01-19 | 2012-10-03 | Lg电子株式会社 | Complex filter and water purifier including complex filter |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058446A (en) * | 2003-07-08 | 2007-10-24 | 三菱丽阳株式会社 | Method of cleaning water purifier |
| JP2006095465A (en) * | 2004-09-30 | 2006-04-13 | Nok Corp | Purifying apparatus |
| JP5484659B2 (en) * | 2007-06-27 | 2014-05-07 | 三菱レイヨン株式会社 | Water purification cartridge and water purifier |
| JP5208580B2 (en) * | 2008-05-26 | 2013-06-12 | 三菱レイヨン・クリンスイ株式会社 | Water purification cartridge, water purification cartridge manufacturing method, and water purifier |
| JP5861479B2 (en) * | 2012-02-03 | 2016-02-16 | 三菱レイヨン株式会社 | Method for producing hollow fiber membrane module |
| TWI616352B (en) * | 2012-03-20 | 2018-03-01 | 碧然德有限公司 | Method of manufacturing a cartridge for a fluid treatment system |
| CN108404677B (en) * | 2018-05-10 | 2023-09-29 | 安徽智泓净化科技股份有限公司 | Back pressure prevention type membrane element |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279809A (en) * | 1985-10-04 | 1987-04-13 | Matsushita Electric Ind Co Ltd | Filter |
| CN2228902Y (en) * | 1995-08-28 | 1996-06-12 | 深圳济阳实业发展公司 | Household ultrafiltered pure water drinking device |
| JPH10314552A (en) * | 1997-05-15 | 1998-12-02 | Mitsubishi Rayon Co Ltd | Hollow fiber membrane cartridge for capturing protozoan and method for capturing and collecting protozoan |
| JPH1190184A (en) * | 1997-09-17 | 1999-04-06 | Mitsubishi Rayon Co Ltd | Method for collecting and recovering microorganism and hollow-fiber membrane module for collecting microorganism |
| JP2001000842A (en) * | 1998-05-22 | 2001-01-09 | Daicel Chem Ind Ltd | Module for enriching pathogenic protozoa and enrichment method |
| BR9914768A (en) * | 1998-10-08 | 2005-05-31 | Cuno Inc | Water Filtration System Filter Spare Cartridge And Filtration Device |
| JP3602349B2 (en) * | 1998-10-22 | 2004-12-15 | 株式会社神鋼環境ソリューション | Hollow fiber membrane separation device and movable hollow fiber membrane separation device |
-
2001
- 2001-09-05 JP JP2001268866A patent/JP5072152B2/en not_active Expired - Fee Related
-
2002
- 2002-09-03 CN CN2006100092757A patent/CN1840484B/en not_active Expired - Fee Related
- 2002-09-03 CN CN2006100092761A patent/CN1847162B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711946A (en) * | 2010-01-19 | 2012-10-03 | Lg电子株式会社 | Complex filter and water purifier including complex filter |
| CN102711946B (en) * | 2010-01-19 | 2014-12-10 | Lg电子株式会社 | Complex filter and water purifier including complex filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5072152B2 (en) | 2012-11-14 |
| CN1840484B (en) | 2010-04-21 |
| CN1847162B (en) | 2010-05-12 |
| CN1847162A (en) | 2006-10-18 |
| JP2003071443A (en) | 2003-03-11 |
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