CN101367570B - Subacid electrolysis water generating method and apparatus - Google Patents
Subacid electrolysis water generating method and apparatus Download PDFInfo
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- CN101367570B CN101367570B CN2007101416847A CN200710141684A CN101367570B CN 101367570 B CN101367570 B CN 101367570B CN 2007101416847 A CN2007101416847 A CN 2007101416847A CN 200710141684 A CN200710141684 A CN 200710141684A CN 101367570 B CN101367570 B CN 101367570B
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Abstract
The invention solves the technical problem of providing a method and a device for making sub-acid electrolytic water which has the pH value range within which hypochlorous acid can exist stably. The method does not result in the complication of the device or the complication for controlling, and can generate the sub-acid electrolytic water without adding the medicament which comprises solids in the electrolytic water. Before electrolyzing the hydrochloric acid with high concentration, the diluted hydrochloric acid which is prepared by diluting the sub-acid electrolytic water is used as raw electrolysis solution; in which way, the re-generated hydrochloric acid in the sub-acid electrolytic water can be electrolyzed again, so that the hydrochloric acid in the electrolytic water is reduced. Under the circumstance of controlling electrolytic current by the electrical conductivity of the raw electrolysis solution, the sub-acid electrolytic water is used to replace the water to dilute the hydrochloric acid; in which case, the consumption of the hydrochloric acid is reduced in accordance with the higher degree of the electrical conductivity of the sub-acid electrolytic water than the electrical conductivity of water, however, the pH value of generated sub-acid electrolytic water is anticipated to rise.
Description
Technical field
The present invention relates to utilize undivided cell, hydrochloric acid is given to electrolysis, and water dilutes the electrolytic solution that generates, to generate method and the device of subacidity brine electrolysis, be particularly related to and use the subacidity brine electrolysis that generates to dilute raw material hydrochloric acid, as method and the device of electrolytic solution.
Background technology
Utilize undivided cell, hydrochloric acid is given to electrolysis, to generate the method for subacidity brine electrolysis, existing open in Japanese documentation 1.
In addition, open in Japanese documentation 2: as to utilize undivided cell, salt solution and mixed in hydrochloric acid solution are together given to electrolysis, and to generate the method for acid brine electrolysis, it is that 1.0～200ppm and pH value are 3～7 electrolytic sterilizing water that this method can obtain residual chlorine.
And then, open in Japanese documentation 3: as in certain density electrolyte solution being given to the acidic electrolytic water that electrolysis obtains, to be added into the damping fluid of mineral acid, the pH value is adjusted to 3.5～5.5 method.The purpose of the method is to adjust hydrogen ion concentration, so that the hypochlorous acid that is present in acidic electrolytic water is stable.
Patent documentation 1: Japanese patent laid-open 10-128336 communique
Patent documentation 2: Japanese patent laid-open 5-237478 communique
Patent documentation 3: Japanese patent laid-open 10-309582 communique
Summary of the invention
The solution that salt, hydrochloric acid etc. is contained to chlorion gives electrolysis, and the method that contains hypochlorous brine electrolysis with generation is existing multiple open.Yet, known hypochlorous acid presents the strongest sterilization effect while under the state of monomer, existing, but this exists ratio system to be in the equilibrium relationship of the pH value that depends on liquid, when alkaline condition, can become the hypochlorite ion that almost there is no sterilizing power, when the pH value is acid below 4, can become chlorine and at short notice with regard to loss.Therefore, in order to make the stable hypochlorous acid of sterilizing power, exist, the pH value must be maintained to 4～6.5 left and right.
The technology of Japanese documentation 1, owing to only hydrochloric acid being given to electrolysis, be considered to cause following reaction.
(anode surface) 2Cl
-→ Cl
2+ 2e
The chlorine that generates will react with water immediately, as following chemical formula, produces hypochlorous acid and hydrochloric acid.
Cl
2+H
2O→HOCl+HCl
Therefore, use electrolytic solution or dilute electrolyte and situation about using, if in dilution water, do not contain the composition with shock absorption, will become abnormal low pH value, and can cause breaking away from the zone that the hypochlorous acid of monomer can stably exist.
The method of Japanese documentation 2, its purpose is considered to also sneak into salt by in electrolytic solution, not only comprising hydrochloric acid, carry out the shortcoming in the disclosed technology of making up day patent document 1, but as the words of chloride-ion source, if than hydrochloric acid, also will not increase more significantly the amount of salt, do not reach the upper ascending effect of pH value.Therefore, in the brine electrolysis that generates, contain the Na from raw material of certain degree amount, the residual solid substance of meeting after drying, so lack convenience very much.In addition, must use 2 kinds of medicaments, therefore can't avoid complicated in complicated, the control of device.
On the other hand, the technology of Japanese documentation 3, the interpolation step of damping fluid must be set in the subsequent step that brine electrolysis generates, can't avoid complicated, the maximization of device, moreover must be in adding step, one side is confirmed pH value etc., and one side is added damping fluid, so also can complicate on certainly controlling.Therefore, measurable device will maximize, high priceization.In addition, the damping fluid that adds is the solution of solid substance, so, identical with the disclosed technology of Japanese documentation 2, have and cause the danger of separating out the drawback of solid substance after the use brine electrolysis.
So, technical problem to be solved by this invention is to provide: can not cause complicated in complicated, the control of device, and needn't in brine electrolysis, add the medicament that contains solid substance, but just can generate method and the device of the subacidity brine electrolysis of the pH value scope with hypochlorous acid stable existence.
Hydrochloric acid is after electrolysis, and water dilutes and caused reaction while generating the subacidity brine electrolysis, as above-mentioned Chemical formula 1 and Chemical formula 2.In the dilution stage later, can become the hydrochloric acid that contains with the hypochlorous acid same molar ratio.So, the part of the subacidity brine electrolysis that generates is directed to once again in electrolyzer and carries out electrolysis, by this mode, can reduce final hydrochloric acid content.As the electrolysis mode of hydrochloric acid, knownly what carry out electrolysis, frontly with regard to the part with dilution water, the hydrochloric acid of higher concentration is simultaneously diluted to the method that one side is carried out electrolysis, but certainly will replace to the subacidity brine electrolysis that employing generates by the water that this dilution is used.According to this mode, for example by the conductance of electrolytic solution, control the situation of Faradaic current, with the subacidity brine electrolysis, replace the words that water dilutes, according to the conductance of subacidity brine electrolysis, higher than (conductance) degree of water, reduce the usage quantity of hydrochloric acid, also can expect that the pH value of the subacidity brine electrolysis that generates can rise.
So, be used for the 1st technical scheme of the present invention of technical solution problem, it is a kind of undivided cell that utilizes, salt will be contained or/and the hydrochloric acid of the inorganic components beyond salt gives electrolysis, water dilutes the electrolytic solution that generates, to generate the method for subacidity brine electrolysis, the hydrochloric acid that wherein will dilute with the part of the subacidity brine electrolysis that generates, as electrolytic solution.
Use contain salt or/and the hydrochloric acid of inorganic components beyond salt be because in the contained inorganic components of hydrochloric acid itself, for example basic metal or alkaline-earth metal have by electrolysis and become alkaline components, with the part of hydrochloric acid, react, the effect that helps the pH value to rise.This hydrochloric acid is not to add especially inorganic components to prepare, but by using the dilution water of water during as dilute hydrochloric acid that contain inorganic components such as hard water, deep seawater etc. to obtain.
Secondly, being used for the 2nd technical scheme of the present invention of technical solution problem, is to carry out continuously respectively: use the subacidity brine electrolysis that generates to come dilute hydrochloric acid, and the electrolysis hydrochloric acid and the generation subacidity brine electrolysis that dilutes.By this mode, can generate continuously the subacidity brine electrolysis of pH value stabilization.In order hydrochloric acid to be given to the electrolysis of one side dilution one side with the subacidity brine electrolysis, also can be for example: allowing in the subsequent step of the step of electrolytic solution in being incorporated in dilution water, connect the taking-up pipeline of dilution with brine electrolysis, the other end of this pipeline is connected to hydrochloric acid supply stream.
As shown in Figure 1, the situation of the structure that hydrochloric acid is supplied by pump, can at the hydrochloric acid supply line in the downstream of hydrochloric acid transfer pump, connect dilution and take out pipeline with brine electrolysis, by being equipped in dilution, with brine electrolysis, take out the pump on pipeline, one side is regulated the supply flow of dilution with brine electrolysis, and one side is carried out electrolysis.
On the other hand, as shown in Figure 2, the other end by the electrolytic solution escape route of electrolyzer, join the attraction section of injector of being configured on the dilution water stream etc. to, utilize dilution water flow introduce electrolytic solution in dilution water and the situation of the mode of being diluted under, can with brine electrolysis, take out throttling valve on pipeline etc. by being equipped in dilution, come one side to regulate the supply flow of dilution with brine electrolysis, one side is carried out electrolysis.
And then, be used for the 3rd technical scheme of the present invention of technical solution problem, be a kind of device that generates the subacidity brine electrolysis according to above-described method.
Effect of the present invention is to provide complicated in complicated, the control that can not cause device, and needn't in brine electrolysis, add the medicament that contains solid substance, but just can generate method and the device of the subacidity brine electrolysis of the pH value scope with hypochlorous acid stable existence.
The accompanying drawing explanation
Fig. 1 dilutes hydrochloric acid with the part of subacidity brine electrolysis in one side, and one side generates in the device of subacidity brine electrolysis, in supply and the dilution of hydrochloric acid, uses in the supply of brine electrolysis, uses the schema of the situation of pump.
Fig. 2 is for diluting hydrochloric acid with the part of subacidity brine electrolysis in one side, one side generates in the device of subacidity brine electrolysis, on the dilution water stream, install injector, the other end by the electrolytic solution escape route of electrolyzer, be engaged to the attraction section of injector of being configured on the dilution water stream etc., to utilize dilution water flow, electrolytic solution is introduced to the mode of being diluted in dilution water, utilization is installed in the variable valve on each pipeline, carries out hydrochloric acid supply and the dilution schema with the mode of the control of brine electrolysis supply.
Nomenclature
1: the dilution water stream
2: mixing tank
3: the outlet of subacidity brine electrolysis
4: electrolyzer
5: the electrolytic solution escape route
6: hydrochloric acid tank
7: the hydrochloric acid pump
8: the hydrochloric acid supply line
9: the hydrochloric acid dilution is taken out pipeline with brine electrolysis
10: dilution electrolysis water pump
11: the electrolytic solution relief outlet
12: the hydrochloric acid supply opening
13: injector
14: dilution electrolysis Water flow adjusting valve
15: the hydrochloric acid stream adjustable valve
Embodiment
In order further to understand the present invention, according to Fig. 1, illustrate to implement best mode of the present invention.The other end of the electrolytic solution escape route 5 that will engage with the electrolytic solution relief outlet 11 at the top that is arranged on electrolyzer 4, be bonded on dilution water stream 1 midway, and electrolytic solution is blended in dilution water and is diluted.At the downstream at the junction surface of diluting stream and electrolytic solution escape route installing mixing device 2, so that it mixes fully.In the downstream of mixing device, engage the taking-up pipeline 9 that brine electrolysis is used in the hydrochloric acid dilution, in the hydrochloric acid dilution, use on the taking-up pipeline of brine electrolysis installing dilution electrolysis water pump 10.Hydrochloric acid supply line 8 is connected to the relief outlet of hydrochloric acid tank, and the other end is connected to the hydrochloric acid supply opening 12 of electrolyzer.On the hydrochloric acid supply line, installing hydrochloric acid pump 7, engage the other end of hydrochloric acid dilution with the taking-up pipeline of brine electrolysis in its downstream.
Utilize this formation, the hydrochloric acid from the hydrochloric acid tank supply can be diluted to the dilute hydrochloric acid of modulating with the part of subacidity brine electrolysis and give electrolysis, then dilute to form the subacidity brine electrolysis with dilution water.Because the part of the subacidity brine electrolysis that generates is carried out electrolysis once again, thus the part of the hydrochloric acid of secondary generation by electrolysis, the pH value can be risen by the degree of electrolysis according to this.And then as the subacidity brine electrolysis that the water of hydrochloric acid dilution use uses, conductance is greater than common water, even therefore reduce the hydrochloric acid supply of this degree, the pH value of the subacidity brine electrolysis that generates still can raise.
In device shown in Figure 1, the dilution water flow is set as 1000L/h, use is with the hydrochloric acid of the 20 % by weight concentration that hard water was diluted of hardness 200ppm, in hydrochloric acid dilution, with electrolysis discharge, be that 400ml/h, Faradaic current are to turn round under the state of 25A, as a result, can obtain the subacidity brine electrolysis 1000L/h of effective chlorine density 21ppm, pH value 6.1.The consumption of 20% hydrochloric acid is approximately 95ml/h.
Claims (1)
1. subacidity electrolytic water generating device, it is characterized in that, possess: dilution water stream (1), mixing tank (2), the outlet of subacidity brine electrolysis (3), electrolyzer (4), electrolytic solution escape route (5), hydrochloric acid tank (6), hydrochloric acid pump (7), hydrochloric acid supply line (8), hydrochloric acid dilution are taken out pipeline (9), dilution electrolysis water pump (10), electrolytic solution relief outlet (11) and hydrochloric acid supplying opening (12) with brine electrolysis
The other end of the electrolytic solution escape route (5) that will engage with the electrolytic solution relief outlet (11) at the top that is arranged on electrolyzer (4), be bonded on dilution water stream (1) midway, and electrolytic solution is blended in dilution water and is diluted;
At the downstream installing mixing tank (2) of dilution water stream (1) with the junction surface of electrolytic solution escape route (5), so that dilution water and electrolytic solution mix fully;
Downstream in mixing tank (2), engage the taking-up pipeline (9) of hydrochloric acid dilution with brine electrolysis, at hydrochloric acid, dilutes the taking-up pipeline (9) of using brine electrolysis upper, installing dilution electrolysis water pump (10);
Hydrochloric acid supply line (8) is connected to the relief outlet of hydrochloric acid tank (6), and the other end is connected to the hydrochloric acid supply opening (12) of electrolyzer (4); At the upper installing of hydrochloric acid supply line (8) hydrochloric acid pump (7), in its downstream, engage the other end of hydrochloric acid dilution with the taking-up pipeline (9) of brine electrolysis,
By dilution electrolysis water pump (10), one side is regulated the supply flow of dilution with brine electrolysis, and one side is carried out electrolysis, generates serially by this subacidity brine electrolysis that can produce optimal pH, HOCl concentration.
2. subacidity electrolytic water generating device as claimed in claim 1, is characterized in that, as the alternative of above-mentioned hydrochloric acid pump (7), uses hydrochloric acid stream adjustable valve (15) automatic suction optimal dose under the effect of injector of capable of regulating flow quantity; And as the alternative of above-mentioned dilution with electrolysis water pump (10), use dilution to regulate amount of dilution with electrolysis Water flow adjusting valve (14), while, at the upper further configuration of the dilution water stream (1) of the upstream of above-mentioned mixing tank (2) injector (13), joins the other end of the electrolytic solution escape route (5) of above-mentioned electrolyzer (4) to the attraction section of this injector (13).
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| CN2007101416847A CN101367570B (en) | 2007-08-17 | 2007-08-17 | Subacid electrolysis water generating method and apparatus |
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|---|---|---|---|
| CN2007101416847A CN101367570B (en) | 2007-08-17 | 2007-08-17 | Subacid electrolysis water generating method and apparatus |
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| CN101367570A CN101367570A (en) | 2009-02-18 |
| CN101367570B true CN101367570B (en) | 2013-11-20 |
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| HK1129528A2 (en) * | 2009-05-25 | 2009-11-27 | Kuan Yu Wen | The electrolytic system for producing hclo solution |
| CN102205997A (en) * | 2010-03-31 | 2011-10-05 | 株式会社微酸性电解水研究所 | Subacid electrolysis water, generating method and apparatus thereof |
| CN102232965A (en) * | 2010-04-30 | 2011-11-09 | 株式会社微酸性电解水研究所 | Local washing method |
| CN102234149A (en) * | 2010-04-30 | 2011-11-09 | 株式会社微酸性电解水研究所 | Method for sterilizing raw water |
| US20130112571A1 (en) * | 2010-06-14 | 2013-05-09 | Hocl Inc. | Electrolytic apparatus and method for producing slightly acidic electrolyzed water |
| CN102217649B (en) * | 2011-03-24 | 2013-10-09 | 刘新志 | Method and device for preparing faintly acid disinfectant fluid by diaphragm-free electrolysis |
| CN103159350B (en) * | 2013-03-15 | 2014-02-26 | 浙江大学 | Micro acidic electrolysis water generating equipment based on food grade raw materials |
| CN104856867A (en) * | 2015-05-05 | 2015-08-26 | 韩永俊 | Subacidity oxidation electric potential water treatment apparatus |
| CN106348398A (en) * | 2016-08-22 | 2017-01-25 | 中国农业大学 | Laying hen house drinking water system disinfection method |
| CN107326389A (en) * | 2017-07-05 | 2017-11-07 | 北京瑞和益生科技有限公司 | A kind of production method for stablizing the hypochlorite solution preserved |
| CN107439589A (en) * | 2017-07-21 | 2017-12-08 | 天津瑞艾化工贸易有限公司 | The environment-friendly antibacterial liquid prepared without diaphragm electrolytic cell |
| JP2020005618A (en) * | 2018-07-10 | 2020-01-16 | 株式会社ホクエツ | Activation and sterilization method and device of fruit and vegetable and vegetable |
| CN113167488B (en) * | 2018-12-17 | 2023-01-06 | 松下知识产权经营株式会社 | Electrolytic water dispersing device and air blowing device |
| JP7483481B2 (en) * | 2020-04-27 | 2024-05-15 | 森永乳業株式会社 | Electrolyzed water production device and method for producing electrolyzed water |
| CN115568476A (en) * | 2021-04-30 | 2023-01-06 | 浙江德茵菲科生物科技股份有限公司 | Hypochlorous acid disinfectant |
| CN113213593A (en) * | 2021-05-28 | 2021-08-06 | 淄博瀚泓环保科技有限公司 | Subacid electrolyzed water generating device with concentration automatic regulating function |
| CN114847301A (en) * | 2022-05-27 | 2022-08-05 | 山西纳安生物科技股份有限公司 | Disinfectant, and preparation method and application thereof |
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| CN1299782A (en) * | 1999-12-14 | 2001-06-20 | 三洋电机株式会社 | Water treatment apparatus |
| CN1680627A (en) * | 2005-02-02 | 2005-10-12 | 华东理工大学 | Preparation of hypochlorous and disinfectant liquid |
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2007
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| CN1299782A (en) * | 1999-12-14 | 2001-06-20 | 三洋电机株式会社 | Water treatment apparatus |
| CN1680627A (en) * | 2005-02-02 | 2005-10-12 | 华东理工大学 | Preparation of hypochlorous and disinfectant liquid |
| CN1854081A (en) * | 2005-04-28 | 2006-11-01 | 株式会社Osg | Preparation of additive solution for electrolytic disinfecting liquid containing hypochlorite |
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| CN101367570A (en) | 2009-02-18 |
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