CN1244501C - Constant current-supplying electrolysis unit for making water and method thereof - Google Patents
Constant current-supplying electrolysis unit for making water and method thereof Download PDFInfo
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- CN1244501C CN1244501C CN 03150180 CN03150180A CN1244501C CN 1244501 C CN1244501 C CN 1244501C CN 03150180 CN03150180 CN 03150180 CN 03150180 A CN03150180 A CN 03150180A CN 1244501 C CN1244501 C CN 1244501C
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005868 electrolysis reaction Methods 0.000 title claims description 38
- 238000005070 sampling Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000012769 bulk production Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012267 brine Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229960001708 magnesium carbonate Drugs 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention relates to an electrolytic device for making water and a method, particularly to a constant current supplying electrolytic device for making water and a method. An error sampling is taken for electrolytic water currents in an electrolytic tank and is compared with a reference voltage signal. Pulse width modulation is implemented to a difference value signal after comparison, and the electrolytic current of the electrolytic tank is adjusted at any time according to a generated pulse width modulation (PWM) signal so that the electrolytic current is kept to be constant. Consequently, the defect that bulk production can not be formed due to great water quality difference variation existing in the existing water making industry. Meanwhile, the present invention is characterized in that electrodes can be automatically switched after a user uses a machine each time so that scale deposits move to an opposite direction and can be rushed out along with water flow during the next use. Consequently, the purpose of automatically cleaning can be achieved.
Description
Technical field
The present invention relates to a kind of constant current autocontrol method, be specifically related to a kind of device and method of constant current power supply electrolysis water.
Background technology
As everyone knows, the water source of electrolysis water generator all is that the waterworks that standard tap water or certain local are managed by oneself provides, general in the prior art by means of the volts DS that between the electrode of electrolyzer, applies regulation, the former water of supplying with in the electrolyzer is carried out electrolysis, thereby the method that continuous variable control brine electrolysis pH value formation volts DS is supplied with power supply obtains brine electrolysis.
But because domestic vast in territory, the waters distributes wide, and water quality difference is very big, and the TDS value of water (soluble substance total content mg/L) changes in the scope more than tens to 1,000.And specific conductivity (μ s/Cm) changes in the scope more than tens to 2,000.Experiment shows that specific conductivity and TDS value become to be similar to proportional relation and be: specific conductivity=(1.8～2) * TDS.Practice shows, general electrolyzed water machine is in Weihai or after Guangzhou TDS＜200 debugging were good, ground will increase working current automatically such as Beijing, Suzhou, Shanghai in taking, even overcurrent and burning out.So will debug working current again to adapt to local water quality.For manufacturer, identical product will be produced multiple model in order to adapt to different areas water quality, even so, also still be difficult to meet the need of market.The requirement that the area that water quality difference is too big does not still reach desired effluent quality.
Just can think that water quality is harder when TDS 〉=300 (the general water that contains in 1 premium on currency above 300mgCaO be called hard water).As everyone knows, just have a thick layer of white foam after the water of hard water areas is boiled, even can fouling in the kettle.To the electrolysis incrustation scale also is the same, long-time electrolysis and when not switching electrode, positively charged ions such as calcium, magnesium can be constantly moved and are assembled to negative electrode, and negative pole will deposit a thick layer of incrustation scale, (composition mostly is lime carbonate, magnesiumcarbonate) will stop up because of depositing too much as often not switching electrode.Machine-spoiled rate is too high, and this brings difficulty just for applying of electrolyzed water machine.
Through groping observation and research for a long time, we find that the variation difference of water quality is huge, and its change of properties of the water quality at same water source is also very fast, and such as TDS value (or conductivity value), it is all changing with region, time, variation of temperature.So it is very big to rely on original traditional thinking to make the ion water machine difficulty, and is difficult to form and produces in batches.
Summary of the invention
The purpose of this invention is to provide a kind of constant current power supply electroanalysis water making apparatus and method that can adapt to the different quality requirement, no matter how water quality changes, can both guarantee that machine presses a certain preset value output constant current, guarantee that effluent quality meets the requirements of index (as ORP value, pH value).
Another object of the present invention provides a kind of method that solves incrusted deposit, the calcium ion, the magnesium ion that allow to produce incrustation scale by the auto switching direction of an electric field move in the opposite direction, break away from original negative electrode (becoming anode after switching) and become loose condition (of surface), can with current go out when using next time, thereby reach the purpose of automatic cleaning.
For achieving the above object, the present invention has carried out a series of improvement to existing electroanalysis water making apparatus, and constant current power supply electroanalysis water making apparatus of the present invention comprises:
One electrolytic tank electrolysis current error sampling circuit unit, this error sampling circuit unit will become error voltage signal through the error current conversion of signals of electrolyzer;
One reference voltage signal generation unit produces a reference voltage signal;
One comparison operation circuit unit, this comparison operation circuit unit, to compare from described unitary error voltage signal of electrolytic tank electrolysis current error sampling circuit and said reference voltage signal, and send a comparison operation result difference signal at its output terminal;
One pulse width modulation circuit unit, the difference signal from described comparison operation circuit unit is accepted in this pulse width modulation circuit unit, carries out width modulation after amplifying, and sends a width modulation (PWM) signal at its output terminal;
One promotes circuit unit, this promotes circuit unit, acceptance is from the unitary width modulation of described pulse width modulation circuit (PWM) signal, and adjusts the Faradaic current of described electrolyzer at any time according to described width modulation (PWM) signal, makes this Faradaic current keep constant.
In addition, also have and have the benchmark change-over switch unit that input reference switches the input keyboard of numerical value, current detecting unit and water quality automatic identification unit are used to control the state of the constant current magnitude of Faradaic current; But and the electrolyzer unit of falling the polar circuit of the positive-negative polarity of auto switching electrolytic tank electrolysis electrode.
Constant current power supply electrolysis water method of the present invention comprises:
Produce an electrolysis water current sampling voltage signal;
Produce a reference voltage signal;
Above-mentioned Faradaic current sampling voltage signal and said reference voltage signal are compared, produce a difference signal;
Utilize described difference signal, after amplifying, produce a width modulation (PWM) signal;
Utilize above-mentioned pulse-width signal (PWM) to feed back to the Faradaic current pilot circuit, make Faradaic current keep constant.
In addition, present method also comprises to be selected reference voltage signal, the state of the constant current magnitude of control Faradaic current; Also comprise current are detected, according to the detection numerical signal of current, the state of the constant current magnitude of control electrolytic tank electrolysis electric current; Also comprise water quality is discerned automatically, according to the result of automatic identification, the state of the constant current magnitude of control electrolytic tank electrolysis electric current; Comprise that also the positive-negative polarity to the electrolytic tank electrolysis electrode carries out auto switching, incrustation scale is moved in the opposite direction, next use meeting is gone out with current, thereby reaches the purpose of automatic cleaning.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation in a circuit according to the invention;
Fig. 2 is a schematic circuit according to an embodiment of the invention;
Fig. 3 is the structural representation according to constant current power supply electroanalysis water making apparatus of the present invention.
Embodiment
As shown in Figure 1, structure comprises electrolyzer 10, electrolytic tank electrolysis current error sampling circuit unit 20, comparison operation circuit unit 30, pulse width modulation circuit unit 40 and promotes circuit unit 50 in a circuit according to the invention, above-mentioned electrolyzer 10 is connected by lead in turn with each circuit unit, connection lead one end of benchmark change-over switch unit 60, be connected on the connection lead between electrolytic tank electrolysis current error sampling circuit unit 20 and the comparison operation circuit unit 30, also comprise reference voltage signal generation unit (not shown).
Fig. 2 is a circuit structure according to an embodiment of the invention, adds pulse electrolysis voltage at electrolyzer and R0 two ends, because water has the existence of specific conductivity, so the battery lead plate two ends just have electric current to flow through, just produces pressure drop VR0 when electric current flows through R0.R1, C1, R2 form the filtering of T type makes it to become volts DS, this voltage adds to comparer B1 after operational amplifier A 1 is amplified K1 times, at this moment the B1 VR0 * K1 that will amplify and the votage reference of setting compare, produce difference, this difference is as pulse width modulated level, and pulse width modulator output and the pulsewidth ripple of transferring wide level to be directly proportional are exported through power regulating eqiupment, add to electrolyzer, work as this moment:
During VR0 * K1＞V benchmark, transfer wide level to reduce;
During VR0 * K1＜V benchmark, transfer wide level to increase;
When VR0 * K1=V benchmark, system reaches balance and is stable constant current state.
This system is as long as change the Faradaic current that benchmark just can be set electrolyzer arbitrarily.We are set at 2A according to practical situation with electrolytic cell currents, show through a large amount of practices and can satisfy various water quality requirements fully, and are as shown in the table:
TDS-supply current change list
| Temperature ℃ | TDS | Supply current (mA) | PH |
| 27.7 | 73 | 510 | 10 |
| 38.6 | 77 | ||
| 26.2 | 178 | 550 | 10 |
| 42.2 | 193 | ||
| 26.3 | 306 | 500 | 10 |
| 40.0 | 330 | ||
| 26.2 | 500 | 500 | 10 |
| 41.6 | 525 | ||
| 27.4 | 800 | 450 | 10 |
| 42.8 | 922 | ||
| 27.5 | 1190 | 450 | 10 |
| 42 | 1323 |
Annotate: this experimental installation is that 220V is become the 36V power supply, and when supply current was 510mA, Faradaic current actual measurement mean value was 2A.
Factors such as this system and water quality (TDS, specific conductivity), temperature are irrelevant in theory.
Experiment show when TDS working order by 50～1200 time very stable, electrolysis effectiveness is very good, pH value all reaches 10, this means that the electrolyzed water machine that adopts this method to make can adapt to the most regional water quality in the whole nation and use, need not to produce multiple model machine, thereby realize producing in batches in order to adapt to different areas water quality.
In addition, circuit system is provided with the current detecting sensor, after the user uses this machine, at first closes water valve.At this moment water flow sensing unit just shuts down, and does not have current pulse output, and in a single day the pilot circuit of falling the utmost point has not had the current pulse, and just automatic starting relay reaches the purpose that fouling was switched, prevented to the positive and negative electrode electric field.
The structural representation of the power supply of the constant current according to the present invention electroanalysis water making apparatus shown in Figure 3, comprising: filtering system 1 is used for the water that enters this water generator is filtered; Water flow switch 2; Electrolytic water generator 3 carries out electrolysis to the water that enters this water generator; Water outlet 4 and water outlet 5; Power supply 6; Electrolysis power power regulating switch 7; Fall polar circuit 8, be used for the positive-negative polarity of auto switching electrolytic tank electrolysis electrode; Benchmark change-over switch 9 and by key control 16 is formed benchmark change-over switch unit jointly; The water quality automatic identification unit is formed in the identification 11 automatically of water quality sampling 10 and water quality jointly, and the water quality detection analytical signal is provided, by constant current control section 12, and the state of the constant current magnitude of control electrolytic tank electrolysis electric current; Current detection 13 and mode control 14 are formed the current detecting unit, and the detection numerical signal of current is provided, by constant current control section 12, and the state of the constant current magnitude of control electrolytic tank electrolysis electric current; With power supply 15.Wherein, the automatic identification 11 of water quality sampling 10 and water quality can be installed at entry place, electrolytic water generator 3 or water outlet 4 and 5 places of filtering system 1.
Can make multiple modification and change to the present invention to one skilled in the art obviously.Therefore, claim of the present invention being reached modification and the change made in the scope of equal value with it is included within the present invention.
Claims (11)
1, a kind of constant current power supply electrolysis water method is characterized in that:
Produce an electrolysis water current sampling voltage signal;
Produce a reference voltage signal;
Above-mentioned Faradaic current sampling voltage signal and said reference voltage signal are compared, produce a difference signal;
Utilize described difference signal, after amplifying, produce a pulse-width signal;
Utilize above-mentioned pulse-width signal to feed back to the Faradaic current pilot circuit, make Faradaic current keep constant.
2, constant current power supply electrolysis water method according to claim 1 is characterized in that:
Also comprise the method that reference voltage signal is selected, the state of the constant current magnitude of control Faradaic current.
3, constant current power supply electrolysis water method according to claim 1 is characterized in that:
Also comprise the method that water quality is discerned automatically, according to the result of automatic identification, the state of the constant current magnitude of control electrolytic tank electrolysis electric current.
4, constant current power supply electrolysis water method according to claim 1 is characterized in that:
Also comprise the method that current are detected, according to the detection numerical signal of current, the state of the constant current magnitude of control Faradaic current.
5, constant current power supply electrolysis water method according to claim 1 is characterized in that:
Also comprise the method for the positive-negative polarity of electrolytic tank electrolysis electrode being carried out auto switching.
6, a kind of constant current power supply electroanalysis water making apparatus is characterized in that comprising:
One electrolytic tank electrolysis current error sampling circuit unit, this error sampling circuit unit will become error voltage signal through the error current conversion of signals of electrolyzer;
One reference voltage signal generation unit produces a reference voltage signal;
One comparison operation circuit unit, this comparison operation circuit unit, to compare from described unitary error voltage signal of electrolytic tank electrolysis current error sampling circuit and said reference voltage signal, and send a comparison operation result difference signal at its output terminal;
One pulse width modulation circuit unit, the difference signal from described comparison operation circuit unit is accepted in this pulse width modulation circuit unit, carries out width modulation after amplifying, and sends a pulse-width signal at its output terminal;
One promotes circuit unit, and this promotes circuit unit, accepts from the unitary pulse-width signal of described pulse width modulation circuit, and adjusts the Faradaic current of described electrolyzer at any time according to described pulse-width signal, makes this Faradaic current maintenance constant.
7, constant current power supply electroanalysis water making apparatus according to claim 6 is characterized in that:
Also have benchmark change-over switch unit, by the reference voltage value switching controls, the state of the constant current magnitude of control electrolytic tank electrolysis electric current.
8, constant current power supply electroanalysis water making apparatus according to claim 6 is characterized in that:
Also have a water quality automatic identification unit, according to the result of automatic identification, the state of the constant current magnitude of control electrolytic tank electrolysis electric current.
9, constant current power supply electroanalysis water making apparatus according to claim 6 is characterized in that:
Also have a current detecting unit, according to the detection numerical signal of current, the state of the constant current magnitude of control Faradaic current.
10, constant current power supply electroanalysis water making apparatus according to claim 6 is characterized in that:
Also have an electrolyzer unit of falling the polar circuit, but the positive-negative polarity of this electrolyzer unit of falling polar circuit auto switching electrolytic tank electrolysis electrode.
11, constant current power supply electroanalysis water making apparatus according to claim 6 is characterized in that:
Described benchmark change-over switch unit also has one and is used for the input keyboard that input reference switches numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150180 CN1244501C (en) | 2003-07-18 | 2003-07-18 | Constant current-supplying electrolysis unit for making water and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150180 CN1244501C (en) | 2003-07-18 | 2003-07-18 | Constant current-supplying electrolysis unit for making water and method thereof |
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| CN1569667A CN1569667A (en) | 2005-01-26 |
| CN1244501C true CN1244501C (en) | 2006-03-08 |
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| CN 03150180 Expired - Lifetime CN1244501C (en) | 2003-07-18 | 2003-07-18 | Constant current-supplying electrolysis unit for making water and method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748430B (en) * | 2009-09-23 | 2014-10-29 | 王红华 | Copper recovery system of printed board acid etching waste solution and etching solution regeneration method |
| CN104628093A (en) * | 2015-02-16 | 2015-05-20 | 陕西长岭电子科技有限责任公司 | Drinking water electrolytic reactor with self-purifying function |
| EP3615711B1 (en) * | 2017-04-24 | 2023-01-18 | Hoeller Electrolyzer GmbH | Method for operating a water electrolysis device |
| CN110240234A (en) * | 2019-06-18 | 2019-09-17 | 广东顺德清宇环保科技有限公司 | Control method and water treatment facilities for water treatment facilities |
| CN114381760A (en) * | 2020-10-21 | 2022-04-22 | 九阳股份有限公司 | Household appliance and water electrolysis control method thereof |
| CN112362703A (en) * | 2020-10-23 | 2021-02-12 | 睿住科技有限公司 | TDS measurement method and device, readable storage medium and cleaning equipment |
| CN114516678A (en) * | 2020-11-16 | 2022-05-20 | 广东美的制冷设备有限公司 | Water electrolysis device electrode reversing control method and device, terminal equipment and storage medium |
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Address after: 510000 No.75, Yongshan section, Yongshan village, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou blue source health environmental protection technology Co.,Ltd. Address before: 511450 No.75, Yongshan section, Shilian Road, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU LANTAI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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