CN101954242A - Filtering and back-flushing method of ceramic filter element of water purifier - Google Patents
Filtering and back-flushing method of ceramic filter element of water purifier Download PDFInfo
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- CN101954242A CN101954242A CN2009101647018A CN200910164701A CN101954242A CN 101954242 A CN101954242 A CN 101954242A CN 2009101647018 A CN2009101647018 A CN 2009101647018A CN 200910164701 A CN200910164701 A CN 200910164701A CN 101954242 A CN101954242 A CN 101954242A
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Abstract
The invention relates to the water treatment industry, in particular to the aspect of deep filtration and purification of drinking water. The invention discloses a filtering and back-flushing method of a ceramic filter element of a water purifier. The pipeline of a water treatment device comprises a water path switcher and a ceramic filter element device controlled by the water path switcher; the water path switcher is provided with a back-flushing water discharge port; an inflow/outflow water switch port of a connection disk of the water path switcher is serially communicated in the pipeline of the water treatment device; an inflow/outflow water switch port of a controlled disk of the water path switcher is communicated with a water inlet and a water outlet of the controlled ceramic filter element device; a sealed switch interface is formed between the connection disk and the controlled disk, and related water switch ports are formed at corresponding equational switch positions respectively; and a filtering channel and a back-flushing channel of the controlled ceramic filter element device are formed through relative shift of the positions of the water switch ports on the connection disk and the controlled disk respectively. The invention has the advantages of effectively eliminating influence of carbon loss on the drinking water and prolonging the service life of the rear fine filter element, along with simple and practical structure, low cost and good filtering and back-flushing effect.
Description
Technical field
The present invention is relevant with water treatment field, is specifically related to depth-type filtration, the purification aspect of drinking water.
Background technology
At present, water purifier uses more universal at home.When using drinking water, adopt water purifier in the water and hydraulic pipeline cause that impurity etc. carries out depth-type filtration, has protected user's health preferably.Yet along with the popularization of water purifier, they have also progressively come out in the defective and the deficiency of application facet.The filter core of water purifier in use for some time, the filtrate outer surface that stopped up gradually and be adsorbed on by impurity of filter core filtrate causes filtration, adsorption effect obviously to descend, and, along with the impurity that filter core is retained down is more and more, tend to make " pollution " degree of this filter core impurity to surpass " pollution " degree of drinking water itself, thereby make filter core become new " pollution " source.Particularly some adopt PP, PE, PTFE fiber melt-blowing filter core, foldable filter element, milipore filter, NF membrane, reverse osmosis membrane than fine filter core because mesh size is minimum, be easy to produce clogging during use, influence filter element life.Water purifier with recoil function can carry out back flush to the filter core filtrate, realizes by the back flush of delivery port to water inlet filter element life is gone out, prolonged to the impurity that is trapped in the filter core.Yet, adopt the aperture for the micro-filtration level filter core more than 1 micron for water purifier, though the hydraulic pressure requirement when the recoil hydraulic pressure that its filtering layer bears can satisfy the filter core back flush, its mesh size is relatively large, the grade of filtering impurity trapped is lower.And for having the fine filter core that grade is held back in higher filtration, as adopting the foldable filter element of band supporting mass and milipore filter, the NF membrane pressure type membrane module that forward and reverse pressure reduction is arranged, the reverse backwash hydraulic pressure that its filter core can bear bears hydraulic pressure less than forward filter.In case with the work water pressure that filter element of water purifier is born in filter process, the recoil hydraulic pressure during as the filter core back flush is easy to exceed the hydraulic pressure that the fine filter core filtering layer can bear, and makes filter material layer impaired, starting a leak causes filter core to lose efficacy.Because filter element of water purifier is in closed state, the user is difficult to find whether start a leak after the filter core filter material layer cleans through recoil, cause causing very big hidden danger, therefore be difficult to fine filter core is adopted backwashing technology.In addition, present water purifier ubiquity " race charcoal " phenomenon: in the drinking water treatment process, be subjected to the hydraulic pressure function influence to move infiltration gradually to the back-end as the particulate in the most effective carbon leaching material of processing organic impurities.Because existing water purifier common aperture that only is provided with between fine filter core such as granular activated carbon filter core and milipore filter, NF membrane or reverse osmosis membrane is in 1 micron fiber melt-blowing filter core or the sintering activity charcoal filter element filtering trap water in the impurity, and micro activated carbon particle is also played certain crown_interception.But because the aperture is relatively large, its effect of damming is limited, causes micro activated carbon particle still can stop up gradually, permeate in the filtering layer of fine filter core.In like manner, also there is " race charcoal " phenomenon in the post active carbon filter core that is positioned at the fine filter core back, the quality of drinking water after directly influence is handled.Above-mentioned defective and deficiency cause water purifier to be difficult to obtain more extensive popularizing.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of simple and practical Ceramic Filter Coundles for Water Purifier and filters and backwash method, to overcome above-mentioned defective and deficiency.
Comprise waterway switcher and the ceramic element device that is subjected to its control in the water treatment facilities pipeline involved in the present invention; This waterway switcher is provided with the recoil discharge outlet, and the water-in and water-out of its terminal pad are switched mouth of a river serial connection and are communicated with in the water treatment facilities pipeline; The entery and delivery port that is communicated with controlled ceramic element device into and out of the switching mouth of a river that it is manipulated stock quotations; Terminal pad and manipulated stock quotations between constitute the sealing interface switching, and the relevant mouth of a river of switching is set respectively on branch switching positions such as correspondence; By terminal pad with manipulated stock quotations on respectively switch the mouth of a river the position relatively move, constitute the filtration channel and the recoil passage of controlled ceramic element device respectively.
Under the filtration state of normal operation, terminal pad seals respectively with the entery and delivery port of being manipulated stock quotations into and out of the switching mouth of a river and docks.Running water is entered by the support water inlet, switches the mouth of a river, is manipulated stock quotations into that water switches the entery and delivery port of the mouth of a river, controlled ceramic element device through terminal pad water inlet, and manipulated stock quotations and the mouth of a river is switched in the water outlet of terminal pad, is finally flowed out by the support delivery port.At this moment, the recoil discharge outlet of waterway switcher is closed, the not conducting of recoil passage.When the terminal pad of waterway switcher and controlled rim sealing interface switching move mutually, each corresponding switching mouth of a river switches to the recoil position and reseals butt joint, corresponding in check ceramic element device is in the recoil passage: the water outlet that waterway switcher is manipulated stock quotations is switched the mouth of a river and is communicated with the terminal pad water inlet switching mouth of a river, constituting running water is entered by the support water inlet, switch the mouth of a river through the terminal pad water inlet, the mouth of a river is switched in the water outlet of being manipulated stock quotations, the delivery port of controlled ceramic element device, filtering layer, water inlet, the water inlet of being manipulated stock quotations, the recoil waterway channel that flows out through the recoil discharge outlet of waterway switcher again.At this moment, the terminal pad delivery port of waterway switcher is closed, the not conducting of corresponding follow-up filtration channel.Under the recoil pattern, water inlet is switched in the recoil of being manipulated stock quotations, and is communicated with the water outlet side port of controlled ceramic element device filtering layer.This water outlet side port both can be the filtering layer water outlet side port of two mouthfuls of filter cores, also can be the middle mouth of a river and the second filtering layer water outlet side port of the two filtering layers of three mouthfuls of filter cores.Correspondingly, the impurity in filtering layer of damming at controlled ceramic element device filtering layer influent side and infiltration is by controlled ceramic element device water inlet, the water inlet of being manipulated stock quotations, and the waterway switcher of switched conductive recoil discharge outlet pipeline is discharged.For the controlled ceramic element device in two mouths of a river, its supporting waterway switcher both can adopt by terminal pad respectively, a kind of in double plate trisection posistion, quartering position or the five position of halving patterns that constitute of being manipulated stock quotations, also can adopt by manipulated stock quotations a kind of in the three dish quartering positions that constitute or the five position of halving patterns of upper and lower terminal pad, centre.When waterway switcher adopted the double plate pattern, terminal pad was a Moving plate usually; When waterway switcher adopted three dish patterns, the water-in and water-out of last terminal pad were switched the mouth of a river and are serially connected in the water treatment facilities pipeline; The entery and delivery port that is communicated with controlled ceramic element device into and out of the switching mouth of a river of following terminal pad; Being manipulated stock quotations in centre between upper and lower terminal pad is Moving plate, and constitutes the double containment interface switching between the upper and lower terminal pad; It is into and out of switching the entery and delivery port that the switching mouth of a river of the mouth of a river by following terminal pad is communicated with controlled ceramic element device.By the relative position between changing terminal pad and being manipulated stock quotations, constitute the filtration channel of controlled ceramic element device and the passage that recoils respectively.
The terminal pad of described waterway switcher is corresponding identical with the five equilibrium switching position that is provided with of being manipulated stock quotations.No matter waterway switcher adopts the double plate pattern or adopts three dish patterns, the switching mouth of a river on each dish all is positioned on the five equilibrium switching position; Between each dish to relatively move with the position of halving be that unit switches.
Described waterway switcher both can only limit to and be subjected to the ceramic element matched with devices of its control that use is set, and also can expand to be subjected to other that filter element device of its control is supporting to be provided with use.
Have the easy characteristics of washing of work water pressure height, smooth surface that the aperture is little, bear according to ceramic filtering layer, with ceramic filtering layer as main filter bed, be arranged between micro-filtration filtering layer and ultrafiltration or the nanofiltration filtering layer, bear the large-size impurity of most of former cause fine filter core processing and hold back the filtration workload, and be equipped with corresponding waterway switcher and ceramic membrane is carried out regular recoil clean, the impurity back flush is discharged, thereby both guaranteed filtering accuracy, be convenient to the cleaning that recoils repeatedly again, significantly alleviate the filtration burden of rearmounted fine filter core.
Described controlled ceramic element device is the combination fine filter core that ceramic film and ultrafiltration rete constitute.
Described controlled ceramic element device is the combination fine filter core that ceramic film and nanofiltration rete constitute.To constitute the two-stage fine filtering passage of band " gradient ".
Described controlled ceramic element device is the Combination filter element that ceramic film and active carbon filtering layer constitute.Both can adopt tubular ceramic membrane; also can adopt the integrated mode of board-like ceramic membrane and granular activated carbon or sintering activity charcoal; ceramic membrane is arranged on the back of active carbon filtering layer; and control less ceramic membrane aperture so that the fine particle in the effectively catching carbon leaching material is eliminated " race charcoal " influence to drinking water.The mouth of a river in the middle of can also being provided with between active carbon filtering layer and ceramic membrane filtering layer on this basis makes this Combination filter element become three mouth of a river filter cores, so that easier impurity or micro activated carbon particle are directly discharged by the middle mouth of a river.
Limited in view of the amount of the part of the small size particulate in each active carbon filter core, after getting rid of a certain amount of micro activated carbon particle " race charcoal " phenomenon can not appear just again therefore.
In order to prevent that impurity or micro activated carbon particle from stopping up the ceramic membrane of active carbon filtering layer back, also corresponding waterway switcher can be set to the ceramic film that is positioned at the active carbon filter core back, so that to the ceramic membrane cleaning that recoils.
Described controlled ceramic element device is the ceramic film filter core.Both can adopt a kind of ceramic membrane of pore diameter range, also can adopt the ceramic membrane of different pore diameter ranges, constitute the multistage filtering passage of band " gradient ", to strengthen filter effect.
In addition, controlled ceramic element device can also be three mouth of a river two-stage ceramic film filter cores at the mouth of a river in the middle of the band.
The present invention can also replace single hole cellulosic ultrafiltration membrane cartridge by porous fibre milipore filter filter core lower with cost, that mechanical strength is higher, obtaining the filter effect more accurate, higher mechanical strength and lower cost, and constitute two-stage fine filtering filter core with preposition ceramic film filter core than single hole fiber.
Above-mentioned controlled ceramic element device is the two filtering layer filter cores in three mouths of a river.The compound ceramic filter element device is set to two filtering layers, and the mouth of a river in the middle of being provided with between two filtering layers.For adopting the controlled ceramic element device in three mouths of a river, corresponding waterway switcher can adopt double plate quartering position, eight equal parts position, and three a kind of in dish five position of halving, four kinds of patterns of eight equal parts switching position, a run location and two recoil positions are set on the five equilibrium switch plate.Switch by twice recoil position, successively to the cleaning that recoils step by step of the controlled ceramic element device in three mouths of a river.Return to the run location of filtration channel when waterway switcher after, just can recover filtration treatment to drinking water.Compare with two mouth of a river filter cores, adopt the two supporting uses of filtering layer filter core in the waterway switcher and three mouths of a river, both can significantly improve filtration and recoil mass and efficient, can save the filter core space again, so that the more function filter core is set, its elimination " race charcoal " effect is also more obvious.
In addition, waterway switcher also can carry out independent backflush process by a ceramic membrane at the controlled ceramic element device in three mouths of a river, a run location and a recoil position only are set this moment, had both made full use of the filtering layer space of controlled ceramic element device, simplified the structure of waterway switcher again.
By control above-mentioned waterway switcher terminal pad and manipulated stock quotations between the sealing switching position, the filtration channel of corresponding formation and recoil passage can only alternatively open: wherein a passage conducting time, another passage then is closed.Under this structure, the recoil discharge outlet of waterway switcher is communicated with final stage filter core water purification outlet pipeline, the passage thereby the impurity that controlled ceramic element device filtering layer is held back recoils in recoil pattern lower edge, recoil discharge outlet, final stage filter core water purification outlet pipeline through this waterway switcher are also finally flowed out by clear water faucet, though can contact the recoil discharge outlet of waterway switcher, but can not reflux, thereby make filter pipeline become unidirectional pipeline.
The nominal pore size scope of above-mentioned controlled ceramic element mounting ceramics rete can be 0. to be convenient to the user and directly to observe repercussion effect.Under filtered model, 03～0.5 micron of water purification in the final stage filter core water purification outlet pipeline, according to the agglomerated material of ceramic film and technology, quality, cost, and, can select 0.2 micron, 0.1 micron and 0.05 micron to the different requirements that composition and circulation are held back in filtration.In view of the ceramic membrane of controlled ceramic element device can bear just higher, reverse water pressure, smooth surface is easily washed, being very suitable for recoil cleans, the characteristics of milipore filter rate range can be accomplished in its rete aperture, therefore can be by the matched combined in each filter core filtering layer aperture of water purifier, with ceramic filtering layer as main filter course and the supporting use of waterway switcher, share the major part effect that former cause milipore filter filter core is born, be equipped with the pattern of rearmounted fine filter core again, can significantly improve the filtration vessel levels of water purifier, prolong the fine filter core life-span, effectively eliminate " race charcoal " influence to drinking water.
The material of firing of the ceramic filtering layer of above-mentioned controlled ceramic element device comprises diatomite, diatomaceous earth material.
The present invention compares with existing drinking water treatment method and has the following advantages: simple structure practicality, with low cost, filtration and repercussion effect are good; Effectively eliminate " race charcoal " influence to drinking water; Over-burden because of filtration is held back to avoid rearmounted fine filter core, and excessive the starting a leak of recoil hydraulic pressure cause the filter core failure phenomenon to take place, and guarantees that rearmounted fine filter core is safe in utilization, and its life-span of corresponding prolongation.
The specific embodiment
Optimum embodiment of the present invention is to adopt the Pyatyi basis filtration channel that comprises the ceramic element film, and switch drinking water treatment pattern that controlled ceramic element film is recoiled and cleans by water: adopts 5～10 microns PP fabric filter elements as first order filter core, bulky grain colloids such as solid sediment, impurity, suspension are held back in filtration; Adopt granular activated carbon as second level filter core, handle organic matter, algae impurity etc.; Adopting the aperture is that 0.05～0.5 micron tubular ceramic film and sintering activity charcoal Combination filter element are as third level master filter core; Adopting the aperture is that 0.005～0.1 micron milipore filter filter core is as fourth stage fine filter core; Third and fourth grade filter core is mainly used in holds back the materials of removing in the water such as suspension, colloid microparticle, bacterium and virus.Adopt post active carbon and ceramic membrane Combination filter element as the rearmounted filter core of level V, its ceramic membrane aperture is 0.03～0.1 micron, is used to remove peculiar smell, improves mouthfeel and eliminates " race charcoal " influence to drinking water.In the present embodiment the 3rd, the Pyatyi Combination filter element all disposes corresponding waterway switcher., improve filter effect, prolong the milipore filter filter element life, elimination " race charcoal " is to the influence of drinking water the cleaning that recoils of corresponding controlled ceramic membrane Combination filter element by each waterway switcher.
Second embodiment of the present invention is on the basis of optimum embodiment, is that 0.001～0.003 micron NF membrane filter core replaces the milipore filter filter core to satisfy the higher drinking water treatment needs of filtration grade with the aperture.
The 3rd embodiment of the present invention is to adopt PP fabric filter element, granular activated carbon, sintering activity charcoal, and the Pyatyi basis filter core water treatment pattern of the rearmounted Combination filter element formation of ceramic combination filter core, super fine activated carbon and the ceramic membrane of employing two-stage ceramic membrane formation.Wherein, the first order ceramic membrane aperture of ceramic combination filter core is 0.1～0.5 micron; Ceramic membrane aperture, the second level is 0.03～0.05 micron; The ceramic membrane aperture of rearmounted Combination filter element is 0.03～0.1 micron.
The 4th embodiment of the present invention is that to adopt 5～10 microns PP fabric filter elements, granular activated carbon, apertures be 0.2～3 foldable filter element, and the basic filter core water treatment of the Pyatyi pattern that adopts the rearmounted Combination filter element formation of ceramic combination filter core, super fine activated carbon and ceramic membrane that 0.05～0.2 micrometer ceramics film and 0.005～0.05 micron milipore filter constitute.
As the improvement of above-mentioned embodiment, described milipore filter filter core adopts the porous fibre milipore filter, and the component diameter of its separation is between 0.02～0.03 micron. have high clearance for particle, colloid, protein, microorganism and most of viruses etc.
As the further improvement of above-mentioned embodiment, the ultrafiltration rete of described porous fibre milipore filter filter core is a seven apertures in the human head cellulosic ultrafiltration film, and its nominal pore size is 0.03 micron.Adopt seven apertures in the human head cellulosic ultrafiltration film to have, more help promoting than higher mechanical strength of single hole film and lower cost.
As the further improvement of above-mentioned embodiment, the related Combination filter element of above-mentioned embodiment all can adopt the two filtering layer filter cores in three mouths of a river, and with the supporting with it use of corresponding waterway switcher.
As the further improvement of above-mentioned embodiment, the Pyatyi filter core that relates in the above-mentioned embodiment all disposes corresponding waterway switcher.By each waterway switcher corresponding controlled filter core is carried out step by step recoil separately and clean, can improve filter effect, prolong each filter element life, elimination " race charcoal " influences drinking water.
For the appliance for treating drinking water that adopts a plurality of waterway switchers, the recoil discharge outlet of each waterway switcher can be communicated with by discharge pipe, and be communicated with final stage filter core water purification outlet pipeline, the passage thereby the impurity that controlled ceramic element device filtering layer is held back recoils in recoil pattern lower edge, recoil discharge outlet, final stage filter core water purification outlet pipeline through this grade waterway switcher are finally flowed out by clear water faucet, are convenient to the user and directly observe repercussion effect.
The invention is not restricted to above-mentioned embodiment; no matter at the filtering layer filtrate of filter core or quantitatively do any variation; everyly in the drinking water treatment pipeline of band ceramic element device, waterway switcher is set; and controlled ceramic membrane filter core inlet and outlet pipe is sealed switching by this waterway switcher, constitute the filtration channel of controlled ceramic element device and the household water filter method for treating water of recoil passage respectively and all drop within the protection domain of the present invention.
Claims (10)
1. a Ceramic Filter Coundles for Water Purifier is filtered and backwash method the ceramic element device that it is characterized in that comprising waterway switcher in the water treatment facilities main line He be subjected to its control; This waterway switcher is provided with the recoil discharge outlet, and the water-in and water-out of its terminal pad are switched mouth of a river serial connection and are communicated with in the water treatment facilities main line; The entery and delivery port that is communicated with controlled ceramic element device into and out of the switching mouth of a river that it is manipulated stock quotations; Terminal pad and manipulated stock quotations between constitute the sealing interface switching, and the relevant mouth of a river of switching is set respectively on branch switching positions such as correspondence; By terminal pad with manipulated stock quotations on respectively switch the mouth of a river the position relatively move, constitute the filtration channel and the recoil passage of controlled ceramic element device respectively.
2. Ceramic Filter Coundles for Water Purifier as claimed in claim 1 is filtered and backwash method, it is characterized in that described controlled ceramic element device is the two-stage fine filtering Combination filter element that ceramic film and milipore filter rete constitute.
3. Ceramic Filter Coundles for Water Purifier as claimed in claim 1 is filtered and backwash method, it is characterized in that described controlled ceramic element device is the two-stage fine filtering Combination filter element that ceramic film and NF membrane rete constitute.
4. Ceramic Filter Coundles for Water Purifier as claimed in claim 1 is filtered and backwash method, it is characterized in that described controlled ceramic element device is the Combination filter element that ceramic film and active carbon filtering layer constitute.
5. Ceramic Filter Coundles for Water Purifier as claimed in claim 1 is filtered and backwash method, it is characterized in that described controlled ceramic element device is the ceramic film filter core.
6. filter and backwash method as claim 2 or 5 described Ceramic Filter Coundles for Water Purifier, it is characterized in that also comprising porous fibre milipore filter filter core; This porous fibre milipore filter filter core and ceramic element rete constitute two-stage fine filtering Combination filter element.
7. filter and backwash method as claim 2,3,4 or 5 described Ceramic Filter Coundles for Water Purifier, it is characterized in that described controlled ceramic element device is the two filtering layer filter cores in three mouths of a river.
8. Ceramic Filter Coundles for Water Purifier as claimed in claim 1 is filtered and backwash method, and it is characterized in that described waterway switcher is three dish structures: the water-in and water-out switching mouth of a river of going up terminal pad is serially connected in the water treatment facilities main line; The entery and delivery port that is communicated with controlled ceramic element device into and out of the switching mouth of a river of following terminal pad; Being manipulated stock quotations in centre between upper and lower terminal pad is Moving plate, and it is into and out of switching the mouth of a river is communicated with controlled ceramic element device by following terminal pad entery and delivery port; The relevant switching mouth of a river of each dish of waterway switcher all is positioned on the five equilibrium switching position.
9. filter and backwash method as claim 1,2,3,4,5 or 8 described Ceramic Filter Coundles for Water Purifier, it is characterized in that filtration channel and recoil passage that described waterway switcher constitutes alternatively open; The recoil discharge outlet of this waterway switcher is communicated with final stage filter core water purification outlet pipeline.
10. filter and backwash method as claim 1,2,3,4,5 or 8 described Ceramic Filter Coundles for Water Purifier, the nominal pore size that it is characterized in that described controlled ceramic element mounting ceramics rete is 0.03～0.5 micron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101647018A CN101954242A (en) | 2009-07-14 | 2009-07-14 | Filtering and back-flushing method of ceramic filter element of water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101647018A CN101954242A (en) | 2009-07-14 | 2009-07-14 | Filtering and back-flushing method of ceramic filter element of water purifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528880A (en) * | 2014-11-28 | 2015-04-22 | 惠州市银嘉环保科技有限公司 | Sterilizing bacteria-proofing water cup |
| CN108911276A (en) * | 2018-09-07 | 2018-11-30 | 刘寅平 | A kind of coal mine ceramic water film purifying device and its filtering and backwash method |
| CN115253687A (en) * | 2022-08-02 | 2022-11-01 | 上海城市水资源开发利用国家工程中心有限公司 | Low-carbon high-efficiency short-flow full-ceramic membrane filtration water treatment method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044889Y (en) * | 2007-04-12 | 2008-04-09 | 杜也兵 | Water clarifier |
| CN101396625A (en) * | 2007-09-30 | 2009-04-01 | 杜也兵 | Water purification apparatus with backflush |
-
2009
- 2009-07-14 CN CN2009101647018A patent/CN101954242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044889Y (en) * | 2007-04-12 | 2008-04-09 | 杜也兵 | Water clarifier |
| CN101396625A (en) * | 2007-09-30 | 2009-04-01 | 杜也兵 | Water purification apparatus with backflush |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528880A (en) * | 2014-11-28 | 2015-04-22 | 惠州市银嘉环保科技有限公司 | Sterilizing bacteria-proofing water cup |
| CN108911276A (en) * | 2018-09-07 | 2018-11-30 | 刘寅平 | A kind of coal mine ceramic water film purifying device and its filtering and backwash method |
| CN115253687A (en) * | 2022-08-02 | 2022-11-01 | 上海城市水资源开发利用国家工程中心有限公司 | Low-carbon high-efficiency short-flow full-ceramic membrane filtration water treatment method and device |
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Application publication date: 20110126 |