CN105668870B - Micro- discharge water purification machine - Google Patents
Micro- discharge water purification machine Download PDFInfo
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- CN105668870B CN105668870B CN201610220237.XA CN201610220237A CN105668870B CN 105668870 B CN105668870 B CN 105668870B CN 201610220237 A CN201610220237 A CN 201610220237A CN 105668870 B CN105668870 B CN 105668870B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46128—Bipolar electrodes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of micro- discharge water purification machine, which includes electrolysis cells, reverse osmosis membrane processing unit and finished product water tank；Electrolysis cells include at least a pair of of anodic-cathodic and source water tank, water penetration membrane is equipped between paired yin, yang electrode, water penetration membrane has the micropore of uniform pore size, window is offered on the side wall of source water tank, water penetration membrane is expired compress and is located on window, and negative electrode and positive electrode are respectively arranged on the inside and outside portion of source water tank；Reverse osmosis membrane processing unit is equipped with the second water inlet, pure water outlet and concentrated water outlet, the first water outlet and is connected with the second water inlet, and the pure water outlet of reverse osmosis membrane processing unit is connected with finished product water tank, and the concentrated water outlet of reverse osmosis membrane processing unit is connected with source water tank.The water purification machine can not only improve the effect of source Water warfare, and can greatly improve the water outlet efficiency of water purification, and only trace waste water discharges, so as to save source water resource.
Description
Technical field
The present invention relates to a kind of micro- discharge water purification machine, belongs to drinking water terminal water treatment technical field.
Background technology
Currently, water environment is exacerbated, the safe and healthy Frequent Accidents of drinking water quality, seriously jeopardizes the existence of people.Water
The pollutant that pollution is mainly produced by mankind's activity causes, it includes industrial pollution source, agricultural pollution source and domestic pollution source
Three parts.Increasingly the water pollution aggravated, forms significant threat to the living safety of the mankind, become human health, economy and
The major obstacles of social sustainable development.Investigated according to authoritative institution of the world, every year the whole world caused by drinking unhygienic water at least
20000000 people are dead, and therefore, water pollution is referred to as " world's number one killer ".
Domestic and international most of waterworks are so far still using precipitation, filtering, the outmoded process of chlorination, by rivers
Water or underground water are simply processed into drinkable water.However, spread unchecked and pour in face of trade effluent, rural sewage and sanitary sewage wildness
Life water source, waterworks can't bear the heavy load helpless.Along with tap water from water factory through water transfer pipe network and high-rise water storage
Case reaches and pollution is added caused by drinking water terminal, and it is health that municipal tap water dare not have been said.Especially, tap water adds
Although chlorine can be killed effectively except germ, can also produce more halogenated hydrocarbon compound at the same time, the contents of these chlorinated organics into
Increase again, be the significant source for causing the mankind to suffer from various diseases.Even boiling tap water, above-mentioned residue still drive no
Go, can also make the increase of the carcinogenic substance such as nitrite and chloroform.That is, even if the safety coefficient of drinking water is also not high
's.
Existing purification of water quality product or drinking water related product, predominantly medium adsorb or use the filter membrane in various apertures by water
Nuisance intercepted the physics mode treatment process filtered out.Since activated carbon class sorbing material is easy to saturation failure, and
Various filter membranes are easy to be contaminated by bacterial again or organic matter obstruction or damaged, thus actual conditions be can not be such as Theoretical Design
It is desired to accomplish like that to the sufficiently cleaned up of water pollutant.At the source water pollution of getting worse, existing physics mode
Science and engineering skill far can not ensure water quality reaching standard.But physics mode water treatment technology also has an advantage in that, will not exactly generate
Toxic byproduct.Therefore the water quality of traditional RO membrane reverse osmosis filter method production is the safest, but is exchanged for the generation that ensures safety
Valency is then up to the even more converse concentrated waters of 40%-70% and is wasted be discharged into sewer pipe, cause huge water resource and
Waste of energy, and the cost replaced after the blocking of RO films is very high.To reduce or even reaching no effuent discharge, water resource is saved,
Various patented technologies are had been developed that so far.Used for example, converse concentrated water is stored it, or by the pollutant in concentrated water first through molecular sieve
Cleaning blowing time is reduced Deng filtering Posterior circle reuse, or adjustment waste water ratio, or by electrical control, or it is direct through non-return valve
Return and diluted in tap water main line, or with " the double water of double films " pattern, water quality based water utilization, etc..The common deficiency of these technologies, one
It is not consider from overall system design, simply local single measure, often makes system overall work unbalance；The second is do not consider
From starting with into water condition for membrane component is improved, mitigate the live load of membrane component, it may be said that it is " palliative ", so so far
The product that yet there are no real utility goods comes out.
Comparatively speaking, it is a kind of excellent height although Water Treatment technique has many advantages, such as cheap simple efficient
Level oxidation technology, but electrochemical treatments should not handle occasion list in itself there are a series of problems in civilian terminal Drinking Water
Solely use, so far there is not yet in daily life water treatment field and closes extensive use.To find out its cause, one is Water Treatment technique
The enough reaction time is needed, and in daily life water occasion, from start, to water outlet, only several seconds, pollutant exist water purifier
The residence time is too short in water purifier, has little time to complete related chemistry reaction treatment at all；The second is have can for Water Treatment technique
Can be with certain toxic side effect.For example, although chemical oxidation reaction technique can potent inactivation of bacterial, depth degradation organic matter,
Go water removal in various harmful substances, but all kinds of Strong oxdiative factors that chemical oxidization method is generated be substantially non-selectivity, can not
Control, if dealing with the novel substance not having in most probably generating source water improperly, jeopardize safe drinking water on the contrary；Just because of this, in the people
Many daily life drink water purifyings handle occasion, and the application for Water Treatment technique can be described as double cautious.
However, in the unprecedented serious pollution of water environment, conventional physical water purifier today unable to do what one wishes, examine closely again
The possibility that concern Water Treatment is applied in Drinking Water purified treatment, innovative development one kind can efficiently remove dirty in water
Thing non-toxic by-products, highly safe chemical oxidation method for purifying water and device again are contaminated, by physical absorption-filtration treatment technique
It is combined with electrochemical treatments technique, displays one's respective advantages, learn from other's strong points to offset one's weaknesses, it is ensured that people's life drinking water quality safety, has very
Important realistic meaning.
Although presently commercially available electrolytic ion water dispenser water treatment system substantially can be considered physical absorption-filtration treatment work
Skill is combined with electrochemical treatments technique, but its system structure is the preposition processing of physical absorption-membrane filtration and electrolysis water unit
The combination of postposition.Regrettably, for purification of water quality, this " putting the cart before the horse " frame mode, does not overcome simple physical to inhale
The deficiency of attached-membrane filtration disposal ability, such as be commonly used for the activated carbon of pre-treatment, its nonpolar suction of porosity high-specific surface area
Attached characteristic, has preferable deodorization, decoloration, removes chlorine residue, filtering suspended matter, and filters out the organic matter that molecular weight is more than 3000
Effect.However, the protection to filter membrane is inadequate, the absorption of some organic matters cannot decompose on filter membrane causes film to fail, activity
Carbon electrode saturation failure easily by germ contamination, or even become the hotbed of bacteria breed so as to further block filter membrane, etc..Before
Handle unqualified so that reverse osmosis membrane or ultrafiltration membrane are stained significantly and broken invalid.Postposition electrochemical treatments technique also can band
Carry out many new problems, such as cathodic reduction can generate nitrite, heavy metal ion and cannot filter out and cause heavy metals exceeding standard
Deng it is not up to standard to ultimately result in water purifier.
The content of the invention
The invention solves technical problem to be：There is provided that a kind of wastewater discharge is few, water purification index is good, reliable operation and use
The water purification machine of long lifespan.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention is：A kind of micro- discharge water purification machine, including electrolysis
Unit, reverse osmosis membrane processing unit and finished product water tank；The electrolysis cells include at least a pair of of anodic-cathodic, are negative and positive electricity
Pole power supply electrolysis power and source water tank, between paired negative electrode and positive electrode be equipped with water penetration made of non-conducting material every
Film；The source water tank is equipped with the first water inlet and the first water outlet, and the water penetration membrane is by positive electrode and the source water tank
Isolation, the negative electrode are located in the water tank of source；The reverse osmosis membrane processing unit is equipped with the second water inlet, pure water outlet and concentrated water
Outlet, first water outlet are connected with the second water inlet, the pure water outlet and finished product water tank of the reverse osmosis membrane processing unit
Connection, the concentrated water outlet of the reverse osmosis membrane processing unit are connected with source water tank；When in use, the negative electrode and the source water
Water in case directly contacts, and the infiltration water that the positive electrode is only oozed out with the source water tank by water penetration membrane contacts.
The non-conductive material filter membranes such as the preferred micro-filtration-nanofiltration of water penetration membrane of the present invention.
It should be noted that the object that the present invention is handled is that city supplies tap water, as described in the background art, present water is dirty
Getting worse is contaminated, city has become a kind of micro-polluted water for tap water（Special contamination water in other words）, its pollution sources includes ring
Pollute in border（Such as pesticide residue）, the pollution that produces of chlorination and pipeline secondary pollution etc..
The working mechanism and beneficial effect of the invention described above are specifically presented below：
Using water penetration membrane as boundary, paired negative electrode and positive electrode set up separately in water penetration membrane two the source water tank
Side, the negative electrode is in the water tank of source, and the positive electrode is outside the water tank of source.Certainly, as source water tank is internally provided with cavity, water penetration
Membrane is arranged on cavity housing, then the positive electrode being arranged in cavity, which is considered as, to be arranged on outside the water tank of source.
Heretofore described positive electrode is only contacted with penetrating through the infiltration water of water penetration membrane in the water tank of source（Positive electrode is not
Directly contacted with the water of source water tank）, anode direct oxidation reaction is transferred to outside the water tank of source and is carried out, reaction product of anode is in container
Drain outside, pollution water quality in container will not be returned again to.Meanwhile such as chlorine residue, various harmful anions of the negative pollutant in water
Deng being acted on by positive electricity pole tension, can also pass through water penetration membrane in water out of container, move to that source water tank is outer to be arranged with infiltration water
Go out.
Therefore, the various zwitterions in the water of source are during cell reaction when in use, through permeable out of source water tank
Property membrane, move to and exhaust outside the water tank of source.And the zwitterion in water is the TDS for forming water（That is dissolvability solid amount）Master
Factor is wanted, under electrolysis, the zwitterion in water is mainly arranged through the interelectrode water penetration membrane of yin, yang with efflux wastewater
Go out, in this way, the TDS of source Water in Water Tanks is just reduced, so that the TDS for maintaining water in system does not have compared to city for water supply water
There is notable rise.By taking DaLian, China area as an example, city is 100 ~ 150mg/L for the TDS of tap water, and concentrates efflux wastewater
TDS is up to 14000mg/L.
The structure of water penetration membrane shows as the water passage region of countless permeable micropores on microcosmic in the present invention, due to
Water penetration membrane is made of non-conductive material, thus voltage drop is produced in the water passage of permeable micropore, i.e., when electrolysis electricity
The decomposition voltage in source puts on external electrode（Positive electrode）With interior electrode（Negative electrode）Afterwards, following voltage landing relation is formed：Thoroughly
The outer positive electrode of water-based membrane（+）The voltage drop U1 of moisture film → water penetration membrane direct impedance between → positive electrode and water penetration membrane
The voltage drop U3 of the anti-generation of water resistance between negative electrode in pressure drop U2 → water penetration membrane and source water tank of generation.
And positive electrode is only contacted with the infiltration water of water penetration membrane, i.e., when positive electrode is close to water penetration membrane, so electrolysis
Liberation of hydrogen, the gas of oxygen evolution reaction generation easily enter it is in the water passage of permeable micropore and raw in the water in water passage
Into bubble, bubble is easy to broken so as to generation office in the narrow and small environment in the water passage of the permeable micropore of water penetration membrane
Portion's high temperature and pressure, and then efficient water body plasma discharge is inspired with minimum voltage, in water penetration membrane and water penetration every
The plasma of hydroxyl free base class transient state oxidation factor is generated in the water of film neighboring area（Plasma is and solid-state, liquid, gas
State is in the 4th state of material of same level, and low temperature plasma is rich in electronics, ion, free radical and excited state molecule, electronics
There is very high reactivity with ion, the chemical reaction that can make to be difficult under usual conditions or speed is difficult becomes very fast
Speed, is discharged by water body and generates plasma group, can greatly improve the degradation efficiency of pollutant in water body）, the hydroxyl radical free radical
The oxidisability of transient state oxidation factor is extremely strong（More than ozone）, while existence time in water is again extremely short, therefore can produce
Afterwards rapidly to Organic substance in water（Such as bacterium）It is reduced directly after forming extremely strong degradation and itself rapid oxidation Deng pollutant
For water, any toxic side effect is not stayed.
In the use of the present invention, source water carries out electrochemical treatments, inactivation of bacterial, depth degradation through the electrolysis cells first
The major pollutants such as the organic matter in the water of removal source, then intercept through the further physics of the reverse osmosis membrane processing unit and filter out water
Middle residual harmful substance, and also filter out secondary there may be causing Biological indicators to be deteriorated in the electrolysis cells course of work
Material, the i.e. present invention use the combination of " preposition electrochemical treatments and membrane filtration postpositive disposal ", so as to overcome in background technology
The various defects of the combination of " the preposition processing of physical absorption-membrane filtration and electrolysis water unit postpositive disposal "（Such as the prior art
In the easy broken invalid of filter membrane, the heavy metals exceeding standard etc. mentioned）, obtain required pure water.Reverse osmosis film process in the present invention
Unit is pure physical treatment mode, it is ensured that the tight security of effluent quality especially Biological indicators, and in source water of the present invention
Pollutant basic handling is clean before reverse osmosis membrane processing unit is entered, therefore the work of reverse osmosis membrane processing unit
Load mitigates significantly, and correspondingly, the service life of reverse osmosis membrane processing unit greatly prolongs.
Existing reverse osmosis membrane determines that must have concentrated water discharge could work normally by its working mechanism, and product water
3 are generally with the ratio of concentrated water:7 or so.But the concentrated water side water outlet of reverse osmosis membrane processing unit is not directly discarded in the present invention,
But it is back in the water tank of source and makees after-treatment with recycling.For whole water purification machine, what real outer waste discharge was abandoned is only
The very small amount sewage of discharge on the outside of from source water tank.The model machine of the present invention is respectively in some typical urbans of China, to be provided from when districts and cities
Water is source water, makees for a long time, a large amount of post-installation review experimental datas show, is ensureing the reliable and stable work of system and water outlet water
On the premise of matter purification safety index, ratio that is controllable and realizing product pure water and efflux wastewater is better than 8:2.With DaLian, China
Exemplified by area（City supplies the TDS of tap water in 100 ~ 150mg/L）, actual product pure water and waste water ratio are more than 9:1.Therefore,
Wastewater discharge in the present invention is few, and water outlet efficiency greatly improves.
In addition especially, it should be noted that, the product water slant acidity of traditional reverse osmosis purified water system, and the present invention benefit
In the introducing of electrolysis cells, product water tends to alkalescent, and oxidation-reduction potential is relatively low（Less than zero millivolt）, it is good for health to support
It is raw.
Preferably, the pore size of the permeable micropore of the water penetration membrane and shape are essentially identical.
In the present invention, if the permeable aperture of water penetration membrane is excessive（That is the space of water passage is excessive）It is equivalent to covert
Increase electrode diameter（Electrode curvature radius）Cause discharge in water starting excitation voltage to increase, and become generation bubble volume
Reduce the catalytic specific surface area of gas-liquid two-phase greatly.And the permeable aperture of water penetration membrane is too small（That is the sky of water passage
Between it is too small）, the gas that electrolysis produces can be made to cannot be introduced into the permeable aperture of micropore（Also gas can not be just generated in water passage
Bubble）, so that plasma discharge can not be normally carried out.Therefore, by the repetition test of inventor, the water penetration membrane it is saturating
The aperture of water micropore is less than 2 millimeters and more than 1 nanometer, the aperture size of the permeable micropore of the water penetration membrane between each other that
This difference is less than 20%.
Preferably, the water penetration membrane is hydrophilic water penetration membrane.Hydrophilic film surface energy forms hydrogen bond with water
Ordered structure, can improve fenestra water-filling wet face state, and the plasma discharge process in film that is conducive to persistently carries out.
Further, since water penetration membrane obtains the clamping protection of paired electrode, experiment proves that the water penetration membrane is using
During will not be scrapped because of premature failures such as damaged or obstructions, remain reliable and stable working status；Even in water penetration every
It is also scum loosely that film and electrode surface, which occasionally have fouling, therefore is suitably switched in electrolytic process and be applied to water penetration membrane
The decomposition voltage polarity of the paired electrode of both sides, it is possible to easily remove anions and canons precipitate in electrode and water penetration
The deposition fouling of membrane surface.
Further improve of above-mentioned technical proposal be：The outside of the source water tank is equipped with the housing of encirclement source water tank lower part,
The enclosure space for surrounding positive electrode is formed between the housing, source water tank and water penetration membrane, the top of the housing, which is equipped with, opens
Mouthful, described be open forms the first water inlet of the source water tank；The bottom of the housing is equipped with the first sewage draining exit.
In this way, city for water supply water from the first water inlet inject enclosure space, and under tap water pressure by arranged on
Water penetration membrane between housing and source water tank enters source water tank.Various pollutants in the water of source are obstructed by water penetration membrane to be filtered
Until after source water tank fills water, open the first sewage draining exit and keep appropriate aperture, and start electrolytic process.In the water tank of source in water
Ion（Both include original ion being dissolved in the water of source, also include the ion product to water electrolysis）Optionally from water penetration
Appeared on the inside of membrane and enter enclosure space on the outside of film, and with the infiltration water outlet of water penetration membrane, the first blowdown from bottom
Mouth discharge, so that the water quality in the water tank of source is continuously available purification.
In addition, in electrolytic process, generate hydrogen between the both sides anodic-cathodic of water penetration membrane and oxygen escape up,
Certain air supporting flocculation is produced, accelerates the suspended matter aggregation such as water intermediate ion precipitation between anode and cathode and water penetration membrane agglomerating
And precipitate, deposit buildup is in the bottom of source water tank.Therefore, the bottom that can set source water tank is in certain slope taper, the source
Water tank bottom is equipped with the second sewage draining exit, and such flocculate is discharged after progressively sliding to the second sewage draining exit of bottom centre.Depending on flocculate
Deposition, can periodically manual unlocking slag-drip opening cock flocculate is discharged.
Preferably, the electrolysis power is that the direct current pulse power source of high level narrow spaces or forward voltage level are more than reversely
The component pulse-changing power of voltage level.Electrolytic efficiency can so be improved.
The shape uniformity of membrane micropore and the uniformity of pore size, it is very big on plasma discharge influence in film, therefore
The present invention preferably when in use, plasma discharge is respectively formed in each permeable micropore of the water penetration membrane.So using
During electric discharge, the direction of an electric field between anodic-cathodic can pass through the plasma group of each permeable micropore, and plasma discharge is directed to
Carried out in all water passages of water penetration membrane, so that water-outlet body plasma discharge can be excited with minimum voltage, in water
The transient state oxidation factor of a large amount of great sterilizing abilities of generation, can greatly improve the degradation efficiency of pollutant in water body, preferably
Carry out sterilizing etc..
Further improve of above-mentioned technical proposal be：It is equipped with and protects between first water outlet and reverse osmosis membrane processing unit
Pacify filter, the filter core of the cartridge filter is worked with cross-current flow；The cartridge filter is equipped with the 3rd water inlet, second
Water outlet and waste, the 3rd water inlet are connected with the first water outlet, and second water outlet and the second water inlet connect
Logical, the waste is connected with source water tank；It is useless that first is serially connected between the waste and source water tank of the cartridge filter
Water ratio, first waste water ratio are formed in parallel by the first solenoid valve and first throttle valve.The filter core of cartridge filter in the present invention
It is preferred that ultrafiltration membrane or microfiltration membranes substitute the microstraining core that tradition uses, rear class reverse osmosis membrane processing unit can not only so be formed
More preferable protection, and avoid the frequent replacement of filter core.Actual test proves that apparatus of the present invention are after specified total water production is reached
Ultrafiltration membrane is not decreased obviously still in kilter, water-flowing amount.Between the waste and source water tank of the cartridge filter
The first waste water ratio is serially connected with, the solenoid valve of the first waste water ratio is opened so as to cartridge filter before actually water processed
Filter core be also rinsed, the working life of the filter core of cartridge filter can be greatly prolonged.
Further improve of above-mentioned technical proposal be：Between the concentrated water outlet of the reverse osmosis membrane processing unit and source water tank
The second waste water ratio is serially connected with, second waste water ratio is formed in parallel by second solenoid valve and second throttle.By opening second
The solenoid valve of waste water ratio can utilize the water purification of cartridge filter to export（That is the water outlet of the second water outlet）To reverse osmosis membrane processing
The reverse osmosis membrane surface of unit is rinsed, and removing is attached to film surface deposit.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the embodiment of the present invention one.
Fig. 2 is the structure diagram of the embodiment of the present invention two
Embodiment
Embodiment one
Micro- discharge water purification machine of the present embodiment is as shown in Figure 1, including electrolysis cells, reverse osmosis membrane processing unit 9 and finished product
Water tank 10；Electrolysis cells include at least a pair of of anodic-cathodic（It is two pairs of electrodes pair shown in Fig. 1）, for anodic-cathodic power supply electricity
Solve power supply 2 and source water tank 1, be equipped between paired negative electrode 3-1 and positive electrode 3-2 water penetration made of non-conductive material every
Film 5-1；Source water tank 1 is equipped with the first water inlet 1-1 and the first water outlet 1-2, offers window on the side wall of source water tank 1, thoroughly
Water-based membrane 5-1 expires compress and is located on window, and negative electrode 3-1 is arranged on the inside of source water tank 1 and positive electrode 3-2 is arranged on outside source water tank 1
Portion；Reverse osmosis membrane processing unit 9 is equipped with the second water inlet 9-1, pure water outlet 9-2 and concentrated water outlet 9-3, the first water outlet 1-2
Connected with the second water inlet 9-1, the pure water outlet 9-2 of reverse osmosis membrane processing unit 9 is connected with finished product water tank 10, at reverse osmosis membrane
The concentrated water outlet 9-3 of reason unit 9 is connected with source water tank 1；Set on pipeline between first water outlet 1-2 and the second water inlet 9-1
There is booster pump 6.
When in use, the water in source water tank 1 is oozed out by water penetration membrane 5-1, and in water penetration membrane 5-1 and positive electrode
Water membrane is clamped between 4-2（Certainly, may also be contacted between water penetration membrane 5-1 and positive electrode 3-2 by permeating water spot
Or face contact）.Source water carries out electrochemical treatments through electrolysis cells first, and inactivation of bacterial and depth degradation remove organic in the water of source
The major pollutants such as thing.Then 9 further physics of osmosis filtration unit intercepts and filters out residual harmful substance in water, also includes filter
Except electrolysis the course of work in there may be cause Biological indicators be deteriorated secondary substance, so as to obtain required pure water.Reverse osmosis
The concentrated water outlet 9-3 of permeable membrane processing unit 9 is connected with source water tank 1, the concentrated water of reverse osmosis membrane processing unit 9 is returned to source water tank 1
Deionization is further electrolysed, reduces the waste of water resource.
Water penetration membrane 5-1 preferably has uniform pore size in the present embodiment（I.e. size and shape is essentially identical）It is permeable
The membrane of micropore；Further, the preferably permeable apertures of water penetration membrane 5-1 are respectively less than equal to 2 millimeters and more than or equal to 1 nanometer
Membrane, and difference is less than 20% to the permeable aperture size of water penetration membrane 5-1 each other between each other.
The water penetration membrane 5-1 of the uniform pore diameter of permeable micropore in order to obtain, and improve the hydrophilic of water penetration membrane 5-1
Property, water penetration membrane 5-1 preferably uses membrane made from following method of modifying in the present embodiment：
1）By nanometer titanium dioxide titanium solution in the ultraviolet case internal irradiation that temperature is 40 DEG C -60 DEG C 10-30 minutes；
2）Film liquid is formed by the raw material of following mass ratio：
PVDF：20%-30%
Pore-foaming agent：2-5%
Step 1）Nano-titanium dioxide after irradiation：2%-4%
Surfactant：3%-5%
Solvent：70%-80%；
3）The film liquid configured is passed through into supersonic oscillations 20-40 minutes；
4）Liquid film is spread to knifing machine, liquid film is stood to 10-30 seconds in atmosphere, is then immersed in solidification liquid and is frozen into
Water-based membrane；
5）The membrane soaks 10-40 minutes in concentration is 10% alcohol water blend, is then placed in deionized water and floats
Wash；
6）The membrane is placed in be applied with the pure water tank of 10kv DC pulse high voltages processing 1 it is small when.
The present embodiment can also make following improve：
1）The outside of source water tank 1 is equipped with the housing 20 of 1 lower part of encirclement source water tank, housing 20, source water tank 1 and water penetration membrane
Enclosure space is formed between 5-1, positive electrode 3-2 is located in the enclosure space, and the top of housing 20 is equipped with opening 20-1, the opening
20-1 forms the first water inlet 1-1 of source water tank 1；The bottom of housing 20 is equipped with the first sewage draining exit 20-2.
In this way, enclosure space is injected for water supply water from the first water inlet 1-1 by city, and by saturating under tap water pressure
Water-based membrane 5-1 enters source water tank 1.During water processed, close inlet valve and stop water inlet, the first sewage draining exit 20-2 is opened, to paired electricity
Pole 3-1,3-2 apply decomposition voltage, start electrolytic process.Water intermediate ion in source water tank 1（Both original be dissolved in the water of source is included
Ion, also includes the ion product to water electrolysis）Enter closed vessel from water penetration membrane 5-1, and with water penetration membrane 5-1
Infiltration water outlet, discharged from the first sewage draining exit 20-2 of bottom, the water quality in source water tank 1 is continuously available purification.
2）In electrolytic process, generate hydrogen between the both sides anodic-cathodic of water penetration membrane 5-1 and oxygen escape up,
Certain air supporting flocculation is produced, accelerates the suspended matter such as water intermediate ion precipitation between anode and cathode and water penetration membrane 5-1 to assemble
Agglomerating and precipitate, deposit buildup is in the bottom of source water tank one.Therefore, the bottom that can set source water tank 1 is in certain slope taper,
And the second sewage draining exit 1-3 is equipped with 1 bottom of source water tank, such flocculate progressively slides to the second sewage draining exit 1-3 of bottom centre, depending on
Flocculate deposition, can periodically manual unlocking slag-drip opening cock flocculate is discharged.
3）Electrolysis power 2 is more than backward voltage electricity using the direct current pulse power source or forward voltage level of high level narrow spaces
Flat component pulse-changing power.
4）The water penetration membrane of water penetration membrane 5-1 preferred hydrophilics.
5）Preferably, for more preferable more generation hydroxyl radical free radical plasma groups, when in use, the water penetration membrane
Each permeable micropore in be respectively formed plasma discharge.
Embodiment two
Micro- discharge water purification machine of the present embodiment is the improvement on the basis of embodiment one, is existed with the difference of embodiment one
In：As shown in Fig. 2, be equipped with cartridge filter 7 between booster pump 6 and reverse osmosis membrane processing unit 9, the filter core of cartridge filter with
Cross-current flow works；Cartridge filter is equipped with the 3rd water inlet 7-1, the second water outlet 7-2 and waste 7-3, the 3rd water inlet
The outlet of mouth 7-1 and booster pump 6, the second water outlet 7-2 are connected with the second water inlet 9-1, waste 7-3 and source water tank
1 connection；The first waste water ratio is serially connected between the waste 7-3 and source water tank 1 of cartridge filter 7, the first waste water ratio is by first
Solenoid valve 11-1 and first throttle valve 11-2 are formed in parallel.
The present embodiment can also make following improve：1）Concentrated water outlet 9-3 and the source water tank 1 of reverse osmosis membrane processing unit 9 it
Between be serially connected with the second waste water ratio, the second waste water ratio is formed in parallel by second solenoid valve 8-1 and second throttle 8-2.
2）The filter core of cartridge filter 7 is microfiltration membranes or ultrafiltration membrane.
Micro- discharge water purification machine course of work of the present embodiment is divided into four-stage, and concrete analysis is as follows：
First, fill phase
The reverse osmosis membrane processing unit 9 and booster pump 6 of preposition electrolysis cells and postposition not power transmission at this time.City supplies tap water
Through the first water inlet by water penetration membrane 5-1, into the inner cavity of source water tank 1 until reaching given water filling position（Source water tank note
It is full）.
2nd, pretreatment stage
Preposition electrolysis cells are started to work, while booster pump 6 starts, the first electricity of the first waste water ratio of cartridge filter 7
Magnet valve 4-1 is open-minded, and waterway circulating is：
First water outlet 1-2 water outlets → 6 → cartridge filter of booster pump, 7 → the first waste water ratio bypasses the first solenoid valve 11-1
Gap → source of negative electrode 3-1 and water penetration membrane 5-1 in 1 the latter half concentrate recirculation water inlet of → source water tank → source water tank 1
1 top half of water tank.In this cyclic process, source water quality is continuously available purification, various pollutants, especially various the moon in water
Cation obtains fully degraded, and extremely gravy jobs condition is created for reverse osmosis membrane processing unit 9.
In this circulation, the filter core of cartridge filter 7 also obtains (forward direction at the same time）Rinse.
3rd, the water stage processed
Water circulation is at this time：
1）Water loop processed：Second water outlet 7-2 of the first water outlet 1-2 water outlets → 6 → cartridge filter of booster pump → anti-
Pure water outlet 9-2 → finished product water tank 10 of the second water inlet 9-1 → reverse osmosis membrane processing unit 9 of permeable membrane processing unit 9；
2）Concentrate recirculation：
The throttle valve 11-2 of the waste water ratio of the waste 7-3 of cartridge filter 7 → first → source water tank bottom reflux water inlet；
The concentrated water outlet waste water ratio throttle valve 8-2 of 9-3 → second → source water tank bottom of reverse osmosis membrane processing unit flows back into
Water.
In this circulation, from the point of view of water inlet side, the water in source water tank 1 gradually decreases, simultaneously because electrolysis cells are held
Continuous electrolysis deionization, has substantial portion of water intermediate ion to pass through the water penetration membrane 5-1 between anodic-cathodic, it is empty to be discharged into closing
Between.Therefore although the TDS of water has been raised in source water tank 1, but not unlimited accumulation.At cartridge filter 7 and reverse osmosis membrane
From the point of view of managing 9 water inlet side of unit, since the bacterium in water, organic matter isocolloid product have been had in source water tank 1 in advance
Effect removes, even if the calcium and magnesium plasma in water can be not easy to form hard scale, it is easy in water processed terminate in film surface temporary deposition
Removed in backwash circulation afterwards.
4th, reverse osmosis membrane processing unit flush cycle
After water processed, 9 flush cycle of reverse osmosis membrane processing unit is transferred to.The solenoid valve 8-1 of second waste water ratio is connected.
Water circulation route is：Second water outlet 7-2 of the first water outlet 1-2 water outlets → 6 → cartridge filter of booster pump 7 → reverse osmosis
The electromagnetism of the concentrated water outlet waste water ratio of 9-3 → second of the second water inlet 9-1 → reverse osmosis membrane processing unit 9 of film process unit 9
The 1 bottom concentrate recirculation water inlet of valve 8-1 → source water tank.In this circulation, exported using the water purification of cartridge filter 7（I.e. second goes out
The water outlet at the mouth of a river）The reverse osmosis membrane surface of reverse osmosis membrane processing unit 9 is rinsed, removing is attached to film surface deposit.
After the completion of this circulation, and fill cycle and pretreatment circulation are transferred to, are ready for water processed next time.
The present invention is not limited to the concrete technical scheme described in above-described embodiment, and in addition to the implementation, the present invention may be used also
To there is other embodiment.All technical solutions formed using equivalent substitution, are the protection domain of application claims.
Claims (8)
1. a kind of micro- discharge water purification machine, including electrolysis cells, reverse osmosis membrane processing unit and finished product water tank；It is characterized in that：Institute
Stating electrolysis cells includes at least a pair of of anodic-cathodic, electrolysis power and source water tank for anodic-cathodic power supply, paired the moon
Water penetration membrane made of non-conducting material is equipped between electrode and positive electrode；The source water tank is equipped with the first water inlet and the
One water outlet, opens up window on the side wall of source water tank, and the water penetration membrane is expired compress and is located on window, the water penetration every
Film completely cuts off positive electrode and the source water tank, and the negative electrode is located in the water tank of source, and the positive electrode is arranged on outside the water tank of source；Institute
Reverse osmosis membrane processing unit is stated to intake equipped with the second water inlet, pure water outlet and concentrated water outlet, first water outlet and second
Mouthful connection, the pure water outlet of the reverse osmosis membrane processing unit connects with finished product water tank, the reverse osmosis membrane processing unit it is dense
Water out is connected with source water tank；When in use, the negative electrode is directly contacted with the water in the source water tank, and the positive electrode is only
The infiltration water oozed out with the source water tank by water penetration membrane contacts.
2. micro- discharge water purification machine according to claim 1, it is characterised in that：The outside of the source water tank is equipped with encirclement source water
The housing of lower box part, forms the enclosure space for surrounding positive electrode, the housing between the housing, source water tank and water penetration membrane
Top be equipped with opening, described be open forms the first water inlet of the source water tank；The bottom of the housing is equipped with the first blowdown
Mouthful.
3. micro- discharge water purification machine according to claim 1, it is characterised in that：First water outlet and reverse osmosis membrane processing
Cartridge filter is equipped between unit, the filter core of the cartridge filter is worked with cross-current flow；The cartridge filter is equipped with
3rd water inlet, the second water outlet and waste, the 3rd water inlet are connected with the first water outlet, second water outlet
Connected with the second water inlet, the waste is connected with source water tank；The waste of the cartridge filter and source water tank it
Between be serially connected with the first waste water ratio, first waste water ratio is formed in parallel by the first solenoid valve and first throttle valve.
4. micro- discharge water purification machine according to claim 3, it is characterised in that：The concentrated water of the reverse osmosis membrane processing unit goes out
Mouthful be serially connected with the second waste water ratio between the water tank of source, second waste water ratio it is in parallel by second solenoid valve and second throttle and
Into.
5. according to the micro- discharge water purification machine of any one of them of claim 1-4, it is characterised in that：The water penetration membrane it is saturating
The pore size and shape of water micropore are essentially identical.
6. according to the micro- discharge water purification machine of any one of them of claim 1-4, it is characterised in that：The water penetration membrane is parent
Water-based water penetration membrane.
7. according to the micro- discharge water purification machine of any one of them of claim 1-4, it is characterised in that：The bottom of the source water tank is set
There is the second sewage draining exit.
8. according to the micro- discharge water purification machine of any one of them of claim 1-4, it is characterised in that：When in use, it is described permeable
Plasma discharge is respectively formed in each permeable micropore of property membrane.
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| CN110217920A (en) * | 2019-07-11 | 2019-09-10 | 中国华能集团清洁能源技术研究院有限公司 | Electro-chemical water processing-electrolytic hydrogen production combined system and method suitable for fluctuation power supply peak regulation |
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| CN205528167U (en) * | 2015-09-20 | 2016-08-31 | 大连双迪创新科技研究院有限公司 | Novel discharge water purification machine a little |
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| CN102186781A (en) * | 2008-10-17 | 2011-09-14 | 有限会社春天 | Apparatus for producing hydrogen-dissolved drinking water and process for producing the dissolved drinking water |
| CN101439265A (en) * | 2008-11-25 | 2009-05-27 | 浙江大学 | Hydrophilic modification method of polymer microporous film |
| CN103482720A (en) * | 2013-08-29 | 2014-01-01 | 太原理工大学 | Dielectric barrier discharge water treatment device and method |
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| CN105668870A (en) | 2016-06-15 |
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