CN204051443U - Filter for purifying water - Google Patents
Filter for purifying water Download PDFInfo
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- CN204051443U CN204051443U CN201420522384.9U CN201420522384U CN204051443U CN 204051443 U CN204051443 U CN 204051443U CN 201420522384 U CN201420522384 U CN 201420522384U CN 204051443 U CN204051443 U CN 204051443U
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- reverse osmosis
- container cavity
- filter
- osmosis membrane
- draw bar
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Abstract
The utility model discloses a kind of filter for purifying water, belong to purged with fresh water technical field.This filter for purifying water comprises: housing, comprises the staving and lid that cooperatively interact, forms airtight container cavity; Pressure-applying unit comprises inflator and check valve, and inflator comprises barrel, piston, draw bar and leather cup, and barrel is located in container cavity and is formed air flue, and air flue air intake is communicated with hull outside, and gas outlet is communicated with container cavity, and gas outlet place is located at by check valve; Draw bar is located in air flue, and draw bar is provided with the piston of suit leather cup, leather cup and barrel interference fit; And reverse osmosis module, comprise reverse osmosis membrane and outlet pipe, reverse osmosis membrane to be located in container cavity and to be enclosed and covers formation water storage cavity, and outlet pipe is communicated with water storage cavity and hull outside.Adopt this device, without the need to using main equipment or high-power booster pump, manual operation inflator just can reach the operating pressure of reverse osmosis membrane, and the advantage have conveniently, be easy to get, directly can utilize the water purification of almost all water source production safeties.
Description
Technical field
The utility model relates to purged with fresh water technical field, particularly relates to a kind of filter for purifying water.
Background technology
Counter-infiltration, also known as reverse osmosis, be a kind of is motive force with pressure differential, isolates the UF membrane operation of solvent from solution.Apply pressure to the feed liquid of reverse osmosis membrane side, when pressure exceedes its osmotic pressure, solvent will make inverse osmosis against the direction of naturally osmotic.Thus the low-pressure side of film obtain through solvent, i.e. penetrating fluid; High-pressure side obtains the solution concentrated, i.e. concentrate.
If with reverse osmosis technology process seawater, obtain fresh water in the low-pressure side of film, obtain bittern in high-pressure side.Reverse osmosis technology is generally used for the fresh water of seawater, bitter; Water correction process; The aspects such as the purification of wastewater treatment and food, medical industry, chemical industry, concentrated, separation.In addition, reverse osmosis technology is applied to the pre-Ficus caricaL that removes and also obtains good effect, and the load of ion exchange resin can be made to alleviate pine more than 90%, and the regenerant consumption of resin also can reduce 90%.Therefore, not only reduce expenses, but also be conducive to environmental protection.Reverse osmosis technology also can be used for, except particulate, organic substance, the colloid substances in anhydrating, to the pollution alleviating ion exchange resin, increasing the service life and having good effect.
Domestic reverse osmosis membrane industrial applicability is mainly the preparations such as space water, pure water, distilled water; Drinks manufacture and degree of falling use water; The preparation in early stage of the industry water such as medicine, electronics; Chemical process concentrated, be separated, purify and water distribution preparation; Boiler feedwater desalination soft water; Seawater, brackish water desalination; Industry water and the wastewater treatments such as papermaking, plating, printing and dyeing, food; City sewage deep treatment etc.
Although reverse osmosis technology is widely used, above Land use systems is main equipment substantially, because filter area is large, need utilize the booster pump of relatively high power, is just enough to produce enough pressure and carries out inverse concentration, inverse osmosis.
At present, there is a kind of comparatively small and exquisite filter on the market, i.e. ultrafiltration cup, or claim cup type ultrafilter.What this ultrafiltration cup adopted is hyperfiltration technique, and ultrafiltration is also known as hyperfiltration, and for the particle of colloid size in trap water, water and other low molecular weight solutes then allow through milipore filter.The mechanism of ultrafiltration refers to the comprehensive effect adsorbed by film surface mechanical grading, fenestra retardance and film surface and fenestra, based on sieving.Use cup type ultrafilter, liquid nitrogen steel cylinder need be equipped with, utilize liquid nitrogen supercharging, but liquid nitrogen steel cylinder not easily carries open air, because it produces collision rift, and steel cylinder destruction easily occurs, cause steel cylinder to burst.Therefore, this cup type ultrafiltration apparatus, at present main for laboratory, as condensing protein, Tea Polyphenols etc., lessly to use as Drinking Water Filtration.The pore size filter of general ultrafiltration apparatus is about 0.01 micron, cannot play the effect of desalination, is not suitable for process seawater and bitter.And the milipore filter used in ultrafiltration generally needs hermetically drying to preserve, need to be kept in the formalin of 0.5% after opening, use; Even if clean proper, a milipore filter substantially uses and just can not ensure filtration flux afterwards 3 ~ 5 times, needs to change.
Therefore, the shortcomings such as it is large that existing routine filtration device has volume, needs supercharging equipment, not portable, all cannot meet in house, pleasure trip on foot and use.
Summary of the invention
Based on this, the purpose of this utility model is the defect overcoming prior art, provides a kind of filter for purifying water, and it is little, portable that this device has volume, manual operation can produce the feature of water purification.
For achieving the above object, the utility model takes following technical scheme:
A kind of filter for purifying water, comprising:
Housing, comprises staving and lid, and described lid coordinates with staving, forms airtight container cavity;
Pressure-applying unit, comprise inflator and check valve, described inflator comprises barrel, piston, draw bar and leather cup, described barrel is located in container cavity, air flue is formed in container cavity, the air intake of this air flue is communicated with hull outside, and the gas outlet of this air flue is communicated with container cavity, and gas outlet place is located at by described check valve; Described draw bar is located in air flue, and this draw bar is provided with piston, and this piston is set with leather cup, this leather cup and barrel interference fit; And
Reverse osmosis module, comprises reverse osmosis membrane and outlet pipe, and described reverse osmosis membrane is located in container cavity, and encloses in container cavity and cover formation water storage cavity, and described outlet pipe one end is communicated with water storage cavity, and the other end is communicated with hull outside.
Filter for purifying water of the present utility model, utilize the feature that gas compressibility is strong, adopt pressure-applying unit toward airtight container cavity insufflation gas, increase the pressure in container cavity, also namely the on high-tension side pressure of reverse osmosis membrane is increased, make the on high-tension side pressure of reverse osmosis membrane exceed the osmotic pressure treating filtrate, force solvent (namely treating the moisture content in filtrate) to do inverse osmosis against the direction of naturally osmotic, thus obtain water purification in the low-pressure side (i.e. water storage cavity) of reverse osmosis membrane.
Further, through investigating discovery in a large number, use the pressure of reverse osmosis membrane need of work to be generally no more than 0.4Mpa, by the cooperation of inflator in this device and check valve, general adult's manual operation, all can reach pressurization and promoting the object that counter-infiltration is carried out.The most key is, filter for purifying water of the present utility model, treat filtrate pressurization by gas, utilize the feature that gas compressibility is extremely strong, a large amount of Compressed Gas can be filled with in container cavity, for reverse osmosis membrane work provides enough pressure, after reaching working pressure range, without the need to continual operation, pressurize, get final product Automatic continuous output water purification, until Pressure Drop is low to moderate below reverse osmosis membrane operating pressure.And as directly to liquid pressing, need continual to liquid applying pressure, could water purification be obtained.Therefore, filter for purifying water of the present utility model has workable, advantage easy to use.
Wherein in an embodiment, described reverse osmosis membrane is located at container cavity bottom, and the gas outlet of described air flue is positioned at below reverse osmosis membrane.Gas outlet is located at the below of reverse osmosis membrane, when extraneous air is filled with container cavity by check valve, container cavity is entered by the below of reverse osmosis membrane, compressed air is by being positioned at the gas outlet bottom reverse osmosis membrane assembly, the bubble formed is from lower to upper in the process on reverse osmosis membrane surface, bubble can adhere to solid or the liquid particles of tool hydrophobic group in reverse osmosis membrane surface and water, form water-gas-particle three-phase mixed system, after the particle adhesion bubble of this tool hydrophobic group, form apparent density be less than the flco of water and float to the water surface, form scum layer, thus realize cleaning reverse osmosis membrane, reach self-cleaning effect.
Wherein in an embodiment, be arc surface bottom described staving, the gas outlet of described air flue is just to the extreme lower position of arc surface.After the bubble formed when air enters container cavity by the gas outlet be positioned at bottom reverse osmosis membrane assembly, under the guide effect that arc surface provides, by its lowest position of arc surface central authorities to staving radial motion, through most of reverse osmosis membrane surface, as far as possible many reverse osmosis membranes can be cleaned.
Wherein in an embodiment, described leather cup is the leather cup to lower recess.Use pressure-applying unit to the process that container cavity insufflation gas is pressurizeed is: have space between draw bar and barrel, the leather cup that piston is set with and barrel interference fit, when upwards Traction bar, draw bar drives the piston on it and leather cup to move upward, and check valve only allows gas to enter container cavity by air flue, does not allow the liquid in container cavity or gas to enter air flue, now, volume of air below piston increases, and pressure reduces, and the air above piston is just extruded into below piston from leather cup surrounding; When pressing down draw bar, draw bar drives the piston on it and leather cup to move downward, piston lower air volume-diminished, pressure increases, leather cup is tight against, and barrel does not allow air drain to above piston, continue to pressing down piston, when atmospheric pressure is enough to the check valve backed down below air flue, compressed air is entered in container cavity by check valve.Extraneous air enters air flue from the space between draw bar and barrel, for next round is inflated ready simultaneously.
Wherein in an embodiment, described filter for purifying water also comprises explosion relief valve, and this explosion relief valve is located on lid, and described lid is placed on staving top.When the pressure in container cavity exceedes preset security value, safety-valve can open pressure release automatically, prevents from, because pressure is excessive, causing reverse osmosis membrane to damage, and affects counter-infiltration effect; Or apparatus main body bursts, cause other security incidents.And this explosion relief valve is located on the lid on staving top, combines in staving top because gas enters container cavity post-concentration, only can allow gas overflowing when pressure release, the overflow in container cavity can be avoided.
Wherein in an embodiment, described filter for purifying water also comprises air-intaking exhaust valve, and this air-intaking exhaust valve is located on lid, and described lid is placed on staving top.The setting of this air-intaking exhaust valve, when being convenient to have ready conditions use air compressor, also can using air compressor, carry out Automatic-boosting by this air-intaking exhaust valve to container cavity, save manpower.Further, after counter-infiltration is carried out, need change when filtrate, this air-intaking exhaust valve can be opened, discharge internal pressure fast, internal pressure and atmospheric pressure be balanced, is convenient to twist the lid off.And this air-intaking exhaust valve is located on the lid on staving top, combines in staving top because gas enters container cavity post-concentration, only can allow gas overflowing when being vented, the overflow in container cavity can be avoided.
Wherein in an embodiment, described inflator also comprises draw bar pressure cap, and this draw bar pressure cap is located at draw bar top.This draw bar pressure cap is convenient to fingertip grasp, handled easily.
Compared with prior art, the utility model has following beneficial effect:
Filter for purifying water of the present utility model, can adopt pure manual mode to utilize pressure-applying unit by compressed air charging device, carry out supercharging, realize counter osmosis, obtain water purification to reverse osmosis membrane high-pressure side.And carry out blower operations without the need to continuing, just can Automatic continuous output water purification.Directly can utilize the drinking water of almost all water source production safeties.When nearly all safe drinking water cannot obtain effective supply, this device can be utilized to stablize, effectively produce drinking water, guarantee the safety of drinking water.This filter is without the need to using main equipment or high-power booster pump, and manual operation inflator just can reach the operating pressure of reverse osmosis membrane, has conveniently, advantage that water purification is easy to get.
And this apparatus structure is simple, without the need to special protection device and power set, can carry with, be convenient at home, go hiking standing.Can be used for outdoor cross-country movement, wilderness lore; The situation that after calamity, drinking water cannot be protected; Both be configurable in the life-saving equipment of fishery maritime affairs ship, also can be fixed on life vest, as the supply of drinking water individual in casualty; And can be used as the Emergency water supply equipment of guard station, field army.During for varying environment, only need according to purposes, support population, environment for use, change the area of reverse osmosis membrane, the dischargeable capacity of device, make water tumbler, kettle for individual, the bucket that the groupuscules such as outdoor exercises, small ocean fishery ship use, the military water tank etc. being equipped with use.
Further, be located at after below reverse osmosis membrane air flue gas outlet, when extraneous air enters container cavity, the bubble that air is formed, from lower to upper in the process on reverse osmosis membrane surface, cleans reverse osmosis membrane, reaches self-cleaning effect.In addition, the reverse osmosis membrane in this device, after sealing off, using, generally being preserved without the need to using special solution to soak, being had safety, easily feature.
Accompanying drawing explanation
Fig. 1 is the generalized section one of filter for purifying water in detailed description of the invention;
Fig. 2 is the generalized section two of filter for purifying water in detailed description of the invention;
Fig. 3 is the schematic appearance one of filter for purifying water in detailed description of the invention;
Fig. 4 is the schematic appearance two of filter for purifying water in detailed description of the invention;
Fig. 5 is the schematic appearance three of filter for purifying water in detailed description of the invention.
Wherein: 11. stavings; 12. lids; 21. inflators; 211. barrel; 212. piston; 213. draw bar; 214. draw bar pressure caps; 215. leather cup; 22. check valves; 31. reverse osmosis membranes; 32. outlet pipes; 4. explosion relief valve; 5. air-intaking exhaust valve; 6. container cavity; 7. water storage cavity.
Detailed description of the invention
The utility model is described in detail below in conjunction with the drawings and specific embodiments.
A kind of filter for purifying water, as shown in Figure 1-2, comprising: housing, pressure-applying unit, reverse osmosis module, explosion relief valve 4, air-intaking exhaust valve 5.
Housing comprises staving 11 and lid 12, threaded engagement between described lid 12 and staving 11, forms airtight container cavity 6.Understandable, also can coordinate by the alternate manner such as clamping between lid with staving, only need the seal meeting container cavity.
Pressure-applying unit comprises inflator 21 and check valve 22, described inflator 21 comprises barrel 211, piston 212, draw bar 213, draw bar pressure cap 214 and leather cup 215, described barrel 21 is located in container cavity 6, air flue is formed in container cavity 6, the air intake of this air flue is communicated with hull outside, the gas outlet of this air flue is communicated with container cavity 6, and gas outlet place is located at by described check valve 22; Described draw bar 213 is located in air flue, this draw bar 213 is provided with piston 212, this piston 212 is set with leather cup 215, this leather cup 215 and barrel 21 interference fit, and this leather cup 215 is the leather cup to lower recess that elastomeric material (as rubber etc.) is made.
Draw bar pressure cap 214 is located at draw bar 213 top, is convenient to fingertip grasp, handled easily.
Reverse osmosis module comprises reverse osmosis membrane 31 and outlet pipe 32, and described reverse osmosis membrane 21 is located in container cavity 6, and encloses to cover in container cavity 6 and form water storage cavity 7, and described outlet pipe 32 one end is communicated with water storage cavity 7, and the other end is communicated with hull outside.
Reverse osmosis membrane 31 is located at container cavity 6 bottom, and the gas outlet of described air flue is positioned at below reverse osmosis membrane 31.Gas outlet is located at the below of reverse osmosis membrane 31, when extraneous air is filled with container cavity 6 by check valve 22, container cavity 6 is entered by the below of reverse osmosis membrane 31, the bubble that air is formed is from lower to upper in the process on reverse osmosis membrane 31 surface, reverse osmosis membrane 31 is cleaned, reaches self-cleaning effect.Understandable, the gas outlet of air flue also can be positioned at other positions such as the top of container cavity, can meet and inflate toward container cavity.But being located at gas outlet below reverse osmosis membrane, simultaneously can also reaching self-cleaning effect, is preferably embodiment.
Further, be set to arc surface by bottom staving 11, and make the gas outlet of air flue just to the extreme lower position of arc surface.After the bubble formed when air enters container cavity by gas outlet, under the guide effect that arc surface provides, by its lowest position of arc surface central authorities to staving radial motion, through most of reverse osmosis membrane surface, reverse osmosis membrane as much as possible can be cleaned.
Explosion relief valve 4 is located at and is positioned on the lid 12 on staving top, as shown in Figure 5.When the pressure in container cavity exceedes preset security value, explosion relief valve 4 can open pressure release automatically.Understandable, explosion relief valve also can be located at other position, can realize pressure release, and overflow can not be made when guaranteeing pressure release to be best.
Air-intaking exhaust valve 5 is located on the lid 12 on staving top, as shown in Figure 5.After counter-infiltration is carried out, need change when filtrate, this air-intaking exhaust valve 5 can be opened, discharge internal pressure fast, internal pressure and atmospheric pressure be balanced, is convenient to twist the lid off 12.Understandable, air-intaking exhaust valve also can be located at other position, can realize the air intake-exhaust to container cavity, and does not have overflow when guaranteeing valve open for best.
Above-mentioned filter for purifying water is adopted to carry out the method for water purification filter as follows:
(1) will treat that filtrate loads container cavity 6, lid 12 and staving 11 will be covered tightly.
(2) draw bar 213 is utilized to drive piston 212 to move in air flue, extraneous air is filled with in container cavity 6 by check valve 22, improve the pressure holding intracavity gas, force in the on high-tension side container cavity 6 of reverse osmosis membrane treat water storage cavity 7 from the moisture content in filtrate to low-pressure side through, obtain water purification at water storage cavity 7.
Draw bar 213 is utilized to drive piston 212 to move in air flue, by the process that extraneous air is filled with container cavity 6 by check valve 22 be: between draw bar 213 and barrel 211, have space, leather cup 215 and barrel 211 interference fit that piston 212 is set with, when upwards Traction bar 213, draw bar 213 drives the piston 212 on it and leather cup 215 to move upward, and 22, check valve allows gas to enter container cavity 6 by air flue, the liquid in container cavity 6 or gas is not allowed to enter air flue, now, volume of air below piston 212 increases, pressure reduces, air above piston is just extruded into below piston from leather cup 215 surrounding, when instantly pushing draw bar 213, draw bar 213 drives the piston 212 on it and leather cup 215 to move downward, piston lower air volume-diminished, pressure increases, leather cup 215 is tight against, and barrel 211 does not allow air drain to above piston, continue to pressing down piston 212, when atmospheric pressure is enough to back down the check valve 22 below air flue, compressed air is entered in container cavity 6 by check valve 22.Extraneous air enters air flue from the space between draw bar 213 and barrel 211, for next round is inflated ready simultaneously.
When being filled with a large amount of Compressed Gas in container cavity 6, for reverse osmosis membrane work provides enough pressure, after reaching working pressure range, without the need to continual operation, pressurize, get final product Automatic continuous output water purification, until Pressure Drop is low to moderate below reverse osmosis membrane operating pressure.
When described extraneous air is filled with container cavity 6 by check valve 22, enter container cavity 6 by the below of reverse osmosis membrane 31, the bubble that air is formed, from lower to upper in the process on reverse osmosis membrane surface, cleans reverse osmosis membrane 31.
When the pressure of gas exceedes preset value in container cavity 6, exitted by explosion relief valve 4, pressure is reduced.
(3) water purification is flowed out by outlet pipe.
Through investigating discovery in a large number, use the pressure of reverse osmosis membrane need of work to be generally no more than 0.4Mpa, by the cooperation of inflator in this device and check valve, general adult's manual operation, all can reach pressurization and promoting the object that counter-infiltration is carried out.And general reverse osmosis membrane is crossed circulation and substantially exceeded 100L/hm, adult's water requirement every day is about 2.5L, and aquifer yield can meet emergency requirement substantially.
The using method of above-mentioned filter for purifying water is:
Turn on the lid 12 on device top, pour liquid to be filtered into, tighten lid 12.To use the mode of inflator pump, draw bar pressure cap 214 pairs of draw bars 213 on gripping device top operate, and upwards lift and downwards pushing draw bar 213, be filled with compressed air, until there is water purification to flow out from outlet pipe 32, as shown in Figure 3 in container cavity 6 repeatedly.As conditions permit, also can use external supercharging device (as booster pump), booster pump tracheae connects the pore of air-intaking exhaust valve 5, carries out supercharging.If pressure is excessive in container cavity 6, explosion relief valve meeting 4 opens pressure release automatically, as shown in Figure 4.
When there being liquid to flow out from outlet pipe, illustrating and reaching operating pressure, with clean container receipt water outlet.And sustainable draw bar pressure cap 214 to be operated, or use the supercharging of external pressurization device, be pressurized to explosion relief valve 4 and open pressure release, stop supercharging immediately.This device is left standstill, lets alone to continue to filter, until do not have liquid to flow out from outlet pipe 32.Illustrate that in container cavity 6, pressure drops to below operating pressure, can carry out secondary booster operation, if still do not have liquid to flow out from outlet pipe 32, illustrate that internal process pressure is not enough, counter-infiltration cannot be carried out, and now proceeds blower operations, until there is liquid to flow out.If after secondary booster operation, still do not have liquid to flow out, then illustrate that the liquid to be filtered in this device has filtered completely.As required, change liquid to be filtered, operate.
As changed liquid to be filtered, when twisting covered sub 12, then can open air-intaking exhaust valve 5 and being exhausted, as shown in Figure 4, device internal pressure being discharged fast, until device internal pressure and atmospheric pressure balance.
And after repeatedly using this device, as the characteristic according to reverse osmosis membrane, when finding that circulation was not enough, by chemical immersion, cleaning reverse osmosis membrane, ensures flux.Chemical cleaning is: the liquor natrii hypochloritis of 200 ~ 500ml/L soaks 20 ~ 30min, can eliminate microbial contamination; The dilute hydrochloric acid solution of 0.3% soaks 20 ~ 30min, can remove the inorganic pollution caused primarily of high hardness water.When conditions permit, reverse osmosis membrane should be cleaned in time, keep the cleannes of film, at utmost can utilize reverse osmosis membrane, multiple times of filtration.
The reverse osmosis membrane used in above-mentioned filter for purifying water, after sealing off, using, when short-term suspends use, only needs every 5 days use water to rinse, and guarantees that gas is got rid of completely from filtration system.If continuous more than 30 days when stopping using, first clean membrane component, and prepare bactericidal liquid, rinse this device inner counter osmosis system by bactericidal liquid; After having rinsed, allow bactericidal liquid be full of counter-infiltration system, guarantee that gas gets rid of reverse osmosis membrane completely; Bactericidal liquid is changed every 15 days.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. a filter for purifying water, is characterized in that, comprising:
Housing, comprises staving and lid, and described lid coordinates with staving, forms airtight container cavity;
Pressure-applying unit, comprise inflator and check valve, described inflator comprises barrel, piston, draw bar and leather cup, described barrel is located in container cavity, air flue is formed in container cavity, the air intake of this air flue is communicated with hull outside, and the gas outlet of this air flue is communicated with container cavity, and gas outlet place is located at by described check valve; Described draw bar is located in air flue, and this draw bar is provided with piston, and this piston is set with leather cup, this leather cup and barrel interference fit; And
Reverse osmosis module, comprises reverse osmosis membrane and outlet pipe, and described reverse osmosis membrane is located in container cavity, and encloses in container cavity and cover formation water storage cavity, and described outlet pipe one end is communicated with water storage cavity, and the other end is communicated with hull outside.
2. filter for purifying water according to claim 1, is characterized in that, described reverse osmosis membrane is located at container cavity bottom, and the gas outlet of described air flue is positioned at below reverse osmosis membrane.
3. filter for purifying water according to claim 2, is characterized in that, is arc surface bottom described staving, and the gas outlet of described air flue is just to the extreme lower position of arc surface.
4. filter for purifying water according to claim 1, is characterized in that, described leather cup is the leather cup to lower recess.
5. the filter for purifying water according to any one of claim 1-4, is characterized in that, also comprises explosion relief valve, and this explosion relief valve is located on lid, and described lid is placed on staving top.
6. the filter for purifying water according to any one of claim 1-4, is characterized in that, also comprises air-intaking exhaust valve, and this air-intaking exhaust valve is located on lid, and described lid is placed on staving top.
7. filter for purifying water according to claim 1, is characterized in that, described inflator also comprises draw bar pressure cap, and this draw bar pressure cap is located at draw bar top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522384.9U CN204051443U (en) | 2014-09-11 | 2014-09-11 | Filter for purifying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522384.9U CN204051443U (en) | 2014-09-11 | 2014-09-11 | Filter for purifying water |
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| Publication Number | Publication Date |
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| CN204051443U true CN204051443U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420522384.9U Expired - Fee Related CN204051443U (en) | 2014-09-11 | 2014-09-11 | Filter for purifying water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226114A (en) * | 2014-09-11 | 2014-12-24 | 广州市地龙环保技术有限公司 | Water purifying and filtering device and method |
| CN112957790A (en) * | 2021-03-22 | 2021-06-15 | 四川省分析测试服务中心 | High-pressure filtering device |
| CN117550684A (en) * | 2024-01-08 | 2024-02-13 | 广州市焱祁环保科技有限公司 | Intermittent circulation type reverse osmosis pure water treatment system and pure water treatment method thereof |
-
2014
- 2014-09-11 CN CN201420522384.9U patent/CN204051443U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226114A (en) * | 2014-09-11 | 2014-12-24 | 广州市地龙环保技术有限公司 | Water purifying and filtering device and method |
| CN104226114B (en) * | 2014-09-11 | 2016-06-01 | 广州市地龙环保技术有限公司 | Filter for purifying water and method |
| CN112957790A (en) * | 2021-03-22 | 2021-06-15 | 四川省分析测试服务中心 | High-pressure filtering device |
| CN117550684A (en) * | 2024-01-08 | 2024-02-13 | 广州市焱祁环保科技有限公司 | Intermittent circulation type reverse osmosis pure water treatment system and pure water treatment method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160911 |