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CN2868994Y - Water purifying device capable of backwashing - Google Patents

Water purifying device capable of backwashing Download PDF

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Publication number
CN2868994Y
CN2868994Y CN 200520134477 CN200520134477U CN2868994Y CN 2868994 Y CN2868994 Y CN 2868994Y CN 200520134477 CN200520134477 CN 200520134477 CN 200520134477 U CN200520134477 U CN 200520134477U CN 2868994 Y CN2868994 Y CN 2868994Y
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China
Prior art keywords
back flushing
post
water
column
ultrafiltration
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Expired - Fee Related
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CN 200520134477
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Chinese (zh)
Inventor
李志民
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Individual
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Individual
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Priority to CN 200520134477 priority Critical patent/CN2868994Y/en
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Publication of CN2868994Y publication Critical patent/CN2868994Y/en
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Abstract

The utility model discloses a reverse flashing function possessing water purifier which consists of a shell, a filter column, a reverse flashing column and a connecting pipeline. The filter column is internally provided with a filtering element and a reverse flashing water outlet; the reverse flashing column is connected with the filter column and a clean water column through a three-way pipe; the reverse flashing column is a cavity which is internally provided with a piston which has the upper part connected with a spring and moves under the water pressure and the elasticity reaction of the spring. The reverse flashing device mentioned in the utility model makes the spring in the cavity drive the piston connected with the spring to realize the reverse flashing towards the filtering element so as to drive the impurities absorbed on the filtering element surface out of the connecting pipe. The reverse cleansing process needs no any additional power. Enjoying a simple structure and convenient operation, the utility model can, at any time, make frequent reverse flashing in a bid to keep the filtering element constantly smooth, thereby prolonging the service life of the filtering element of filter and lowering the use cost.

Description

But a kind of water purifier of back flushing
Technical field
The utility model belongs to water-treatment technology field, particularly a kind of water purifier to drink water purifying.
Background technology
Water purifier is very general in Modern Family, and water purifier reaches the water purifying purpose by impurity in the filter core planar water of strainer, and water purifier is long duration of service one, and the impurity that is adsorbed on the filter core can stop up filter core.For this reason, China Patent No. is 94216421.0 to disclose a kind of full automatic multifunctional high efficiency water purifier, mainly be made up of tank body, water pump, check valve, comprehensive treating process device, controlling box, safety valve, wash water valve several sections, the comprehensive treating process device comprises magnetizing apparatus, sand separator, first filter layer, filter bed of essence and ultrafiltration layer; Controlling box comprises pressure controller, alternating current contactor, thermo-relay, electric bell, flash-signal lamp, hummer, fusible cut-out; The output terminal water pump of controlling box, water pump are fixed on the frame of tank body, and the comprehensive treating process device connects with tank body with flange, and check valve is positioned at the water outlet of water pump, and wash water valve is contained in comprehensive treating process device feed-water end, and safety valve is contained on the tank body.Though this patent has solved the blockage problem of water purifier, its part that also comes with some shortcomings, this device must could be worked by driven by power, and its complex structure, volume is big, cost is high, operation is inconvenient.
China Patent No. is 01228732.6 also to disclose a kind of household water filter, include a case of bringing water pipe, pure water inlet pipe, recoil water outlet pipe into, and micro-filtration core, the ultrafiltration core of in case, installing, it is characterized in that: a telescopic elastomeric bladder has been installed in the case simultaneously, and a port of elastomeric bladder with the water purification side of ultrafiltration core be communicated with, the another port is communicated with the pure water inlet pipe on the case.This patent has advantage simple in structure, that cost is low, but it also has the some shortcomings part, because this patent utilization elastomeric bladder realizes backwashing function, if the making intensity of this elastomeric bladder is too big, then the pressure of tap water can not make its expansion and follow the string, and does not have the effect of back flushing; If the making intensity of this elastomeric bladder is too little, it is certainly existing because hydraulic pressure is excessive and hydraulic pressure is unstable and is being pressed quick-fried situation, so its failure rate height makes troubles to the user.
Summary of the invention
The utility model discloses a kind of simple in structure, cost is low, easy to use, life-span is long water purifier with automatic backwash function.
Technical solution adopted in the utility model is: but a kind of water purifier of back flushing, comprise housing, Filter column, back flushing post and connecting tube, be provided with filter core in the Filter column, Filter column is provided with the back flushing water outlet, and the back flushing post is communicated with Filter column and pure water inlet pipe by Y-tube; The back flushing post is a cavity, establishes a piston in the cavity, and the piston top links to each other with a spring, and piston is subjected to the effect of hydraulic pressure and spring force and moves up and down.
But the water purifier of described back flushing is provided with two Filter columns: micro-filtration post and ultrafiltration post, and both serial connections, the back flushing water outlet is located on the ultrafiltration post, and the back flushing post is communicated with ultrafiltration post and pure water inlet pipe by Y-tube.
But the water purifier of described back flushing, Y-tube are communicated with the pure water inlet pipe after connecting an adsorption column.
But the water purifier of described back flushing, the micro-filtration core of micro-filtration post adopt the cotton filter core of spray fusing PP or KDF and gac composite filter element.
But the water purifier of described back flushing, the ultrafiltration core of ultrafiltration post adopts hollow-fibre membrane, ceramic membrane or molecular sieve.
But the water purifier of described back flushing, described adsorption column is equipped with sorbent material, and this sorbent material has the heterochromatic peculiar smell of removal and the bacteriostatic effect is arranged, and is good with the silver matrix gac.
But the water purifier of described back flushing, piston adopt the food grade latex to make, and spring adopts stainless steel.
Back-purge system of the present utility model drives coupled piston by the intravital spring in a chamber and realizes back flushing to filter core, and the impurity of filter core top layer absorption is gone out outside the pipe by the recoil rising pipe.Its backwash process does not need any additionaling power, and this apparatus structure is simple, easy and simple to handle, can be at any time and carry out back flushing continually, thus it is unimpeded that filter core is remained, and prolonged the work-ing life of filter element, reduced use cost.
Description of drawings
Fig. 1 is the state 1 structure sectional view of embodiment 1 of the present utility model.
Fig. 2 is the state 2 structure sectional views of embodiment 1 of the present utility model.
Fig. 3 is the structure sectional view of embodiment 2 of the present utility model.
In the diagram, 1-water inlet pipe, 2-recoil rising pipe, 3-pure water inlet pipe, 4-micro-filtration post, 41-micro-filtration core, 42-micro-filtration water purification side, the former water side of 43-micro-filtration, 5-ultrafiltration post, 51-ultrafiltration core, 52-ultrafiltration water purification side, the former water side of 53-ultrafiltration, 6-housing, 7-back flushing post, 72-exocoel, 73-inner chamber, 8-piston, 9-adsorption unit, 91-sorbent material, 10-return spring, 11-water inlet control valve, 12-recoil water control valve, 13-water purification control valve.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 1, 2, embodiment one is three grades of drainage water purifiers, and its structure is as follows: micro-filtration post 4, ultrafiltration post 5, back flushing post 7 and adsorption unit 9 all place in the housing 6.The outer end of water inlet pipe 1 directly is connected with running water pipe, its the other end links to each other with micro-filtration post 4, and on water inlet pipe 1, establish water inlet control valve 11, micro-filtration post 4 and ultrafiltration post 5 are communicated with by pipeline, the former water side 53 of the ultrafiltration of ultrafiltration post 5 is communicated with recoil rising pipe 2, the exocoel 72 of back flushing post 7 is connected by Y-tube 14 with ultrafiltration water purification side 52, the adsorption unit 9 of ultrafiltration post 5, adsorption unit 9 is communicated with pure water inlet pipe 3 again, respectively establishes the current that a control valve 12,13 is emitted with control on back flushing rising pipe 2, pure water inlet pipe 3.Establish a pressure return spring 10 and a piston 8 in the chamber of back flushing post 7, an end of pressure return spring 10 is connected with cavity, and the other end is connected with piston 8, and piston 8 is divided into cavity exocoel 72, inner chamber 73 hermetically.
Micro-filtration post 4 built-in micro-filtration cores 41 adopt the cotton filter core of spray fusing PP, and ultrafiltration post 5 built-in ultrafiltration core 51 adopt hollow-fibre membrane.The micro-filtration core 41 of micro-filtration post 4 is difficult for stopping up under the tap water pressure effect, and it can prevent effectively that large granular impurity from entering ultrafiltration post 5, plays the pre-flock effect.The less impurity of particle such as the ultrafiltration core 51 effectively catching bacteriums of ultrafiltration post 5, colloid, organism, the standard that water quality is reached drink raw water.Piston 8 adopts the food grade latex to be made, and it is rich in certain elasticity and can bears certain pressure.Pressure return spring 10 adopts stainless steel spring. and the sorbent material 91 in adsorption unit 9 adopts the silver matrix gac, has the heterochromatic peculiar smell of removal and bacteriostatic action is arranged.
As shown in Figure 1, open water inlet control valve 11 (water inlet control valve 11 all is in open mode generally speaking), close back flushing control valve 12, water purification control valve 13, tap water flows into the former water side 43 of micro-filtration of micro-filtration post 4 from water inlet pipe 1, behind micro-filtration core 41, the impurity retaining that volume is bigger is in the former water side 43 of micro-filtration, the water that enters micro-filtration water purification side 42 flows into the former water side 53 of ultrafiltration of ultrafiltration post 5, keep off in the former water side 53 of ultrafiltration by ultrafiltration core 51 impurity that volume is littler, the water that enters ultrafiltration water purification side 52 flows into adsorption unit 9 by a Y-tube 14, owing to have a water flow pressure, and under this pressure effect, in the back flushing post 7 piston 8 move upward, exocoel 72 retainings balance each other piston 8 stop motions up to the elastic force and the water flow pressure of pressure return spring 10, at this moment, pressure return spring 10 is compressed and is in compressed state.Being pressed into the intravital elevation of water surface in chamber depends on and the pressure of tap water is generally 10cm to 20cm.
As shown in Figure 2, water inlet control valve 11 all is in open mode generally speaking, when closing water purification control valve 13, when opening back flushing control valve 12, then the pressure of the former water side 53 of the ultrafiltration of ultrafiltration post 5 rushes down through recoil rising pipe 2 and presses and reduce, piston 8 in the back flushing post 7 moves downward under the effect of pressure return spring 10 elastic force, give pressure of water of 72 li of exocoels, current flow to the former water side 53 of ultrafiltration by ultrafiltration post 5 ultrafiltration water purification sides 52, so be discharged from outside the pipe by recoil rising pipe 2 attached to the foreign particle (being in the former water side 53 of ultrafiltration) of the ultrafiltration core 51 of ultrafiltration post 5.The water of being discharged by recoil rising pipe 2 can be used for any purposes except that drinking.
The back flushing post is to keep away slick cylindrical cavity in one, so that contact with piston packing, it can adopt the plastic cement of food grade to make, and the chamber wall thickness is 5mm, to guarantee good load performance, also can adopt 304 stainless steels to make.
Be under any state, as long as open water purification control valve 13, directly can drink from the water that pure water inlet pipe 3 is emitted, it has passed through the adsorption of the sorbent material 91 of the filtration of micro-filtration core 41, ultrafiltration core 51 of micro-filtration post 4, ultrafiltration post 5 and adsorption unit 9, and the water quality of the water of emitting from the pure water inlet pipe is very good.
For three grades of filters, also can realize back flushing to its micro-filtration post, like this, and will be once the structural modification of recoil water outlet, the rising pipe that promptly recoils is connected with the former water side of micro-filtration post.But the aperture of ultrafiltration core is very little, is generally 200 to 300 nanometers, and permeability rate is low, be easy to dirty blocking up, and replacement cost is also very high, and the aperture of micro-filtration core is bigger, and the permeability rate height is difficult for stopping up, so, there is no need it is carried out back flushing.After adsorption unit is positioned at ultrafiltration core, there has not been impurity through the water behind the ultrafiltration post, so it does not need back flushing.
As shown in Figure 3, embodiment two is an one-level drainage water purifier, and it is local preferably that it is used for water quality.Its structure is compared with three grades of drainage water purifiers, save micro-filtration post 4 and adsorption unit 9, only establishing grade one filter is ultrafiltration post 5, recoil rising pipe 2 is communicated with the former water side 53 of the ultrafiltration of ultrafiltration post 5, and the exocoel 72 of back flushing post 7 is communicated with the ultrafiltration water purification side 52 and the pure water inlet pipe 3 of ultrafiltration post 5 by Y-tube 14.
Other is identical with three grades of drainage water purifiers implementing one.
The drainage water purifier can also be other progression, as secondary, level Four, Pyatyi or more multistage, mainly designs its filtration progression and the material for core that is adopted according to the good and bad situation of water quality.

Claims (7)

  1. But 1, a kind of water purifier of back flushing comprises housing, Filter column, back flushing post and connecting tube, is provided with filter core in the Filter column, and it is characterized in that: Filter column is provided with the back flushing water outlet, and the back flushing post is communicated with Filter column and pure water inlet pipe by Y-tube; The back flushing post is a cavity, establishes a piston in the cavity, and the piston top links to each other with a spring, and piston is subjected to the effect of hydraulic pressure and spring force and moves up and down.
  2. But 2, the water purifier of back flushing according to claim 1, it is characterized in that: be provided with two Filter columns: micro-filtration post and ultrafiltration post, both serial connections, the back flushing water outlet is located on the ultrafiltration post, and the back flushing post is communicated with ultrafiltration post and pure water inlet pipe by Y-tube.
  3. But 3, the water purifier of back flushing according to claim 1 and 2 is characterized in that: Y-tube connects an adsorption column, and adsorption column is communicated with the pure water inlet pipe.
  4. But 4, the water purifier of back flushing according to claim 2 is characterized in that: the micro-filtration core of micro-filtration post adopts the cotton filter core of spray fusing PP or KDF and gac composite filter element.
  5. But 5, the water purifier of back flushing according to claim 2 is characterized in that: the ultrafiltration core of ultrafiltration post adopts hollow-fibre membrane, ceramic membrane or molecular sieve.
  6. But 6, the water purifier of back flushing according to claim 3 is characterized in that: described adsorption column is equipped with sorbent material, is good with the silver matrix gac.
  7. But 7, the water purifier of back flushing according to claim 1 is characterized in that: piston adopts the food grade latex to make, and spring adopts stainless material.
CN 200520134477 2005-12-30 2005-12-30 Water purifying device capable of backwashing Expired - Fee Related CN2868994Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520134477 CN2868994Y (en) 2005-12-30 2005-12-30 Water purifying device capable of backwashing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520134477 CN2868994Y (en) 2005-12-30 2005-12-30 Water purifying device capable of backwashing

Publications (1)

Publication Number Publication Date
CN2868994Y true CN2868994Y (en) 2007-02-14

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CN 200520134477 Expired - Fee Related CN2868994Y (en) 2005-12-30 2005-12-30 Water purifying device capable of backwashing

Country Status (1)

Country Link
CN (1) CN2868994Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102531220A (en) * 2010-12-13 2012-07-04 深圳市家乐士净水科技有限公司 Multifunctional water purifier
CN104086020A (en) * 2014-06-25 2014-10-08 华南理工大学 Method and device for purifying direct drinking water
CN108295529A (en) * 2018-03-01 2018-07-20 同济大学 Seawater filtering device is cleaned in energy storage
CN108928945A (en) * 2018-07-27 2018-12-04 国家电网有限公司 Faucet water purifier
CN109012206A (en) * 2018-10-30 2018-12-18 杭州老板电器股份有限公司 filter core and water purifier
CN111672191A (en) * 2019-03-11 2020-09-18 河北源润农业科技有限公司 A fully automatic unpowered backwash irrigation filter
CN112933973A (en) * 2020-12-31 2021-06-11 广东水护盾健康科技有限公司 Reverse osmosis filter element with backwashing function, composite filter element and water purifier
CN115400597A (en) * 2022-09-30 2022-11-29 江苏诺莱智慧水务装备有限公司 Ultrafiltration membrane filtering device for drinking water treatment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102531220A (en) * 2010-12-13 2012-07-04 深圳市家乐士净水科技有限公司 Multifunctional water purifier
CN104086020A (en) * 2014-06-25 2014-10-08 华南理工大学 Method and device for purifying direct drinking water
CN104086020B (en) * 2014-06-25 2015-10-28 华南理工大学 A kind of method for direct drinking water purification and device
CN108295529A (en) * 2018-03-01 2018-07-20 同济大学 Seawater filtering device is cleaned in energy storage
CN108928945A (en) * 2018-07-27 2018-12-04 国家电网有限公司 Faucet water purifier
CN109012206A (en) * 2018-10-30 2018-12-18 杭州老板电器股份有限公司 filter core and water purifier
CN109012206B (en) * 2018-10-30 2024-04-09 杭州老板电器股份有限公司 Filter element and water purifier
CN111672191A (en) * 2019-03-11 2020-09-18 河北源润农业科技有限公司 A fully automatic unpowered backwash irrigation filter
CN112933973A (en) * 2020-12-31 2021-06-11 广东水护盾健康科技有限公司 Reverse osmosis filter element with backwashing function, composite filter element and water purifier
CN115400597A (en) * 2022-09-30 2022-11-29 江苏诺莱智慧水务装备有限公司 Ultrafiltration membrane filtering device for drinking water treatment
CN115400597B (en) * 2022-09-30 2023-09-22 江苏诺莱智慧水务装备有限公司 Ultrafiltration membrane filter equipment is used in drinking water treatment

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070214

Termination date: 20100201