KR20020020163A - Electrolyte-creating apparatus - Google Patents

Abstract

PURPOSE: To provide an electrolytic water making apparatus not adapted for the purpose of making alkaline water or acidic water but strongly electrolizing water to enable the enhancement of washing effect in a neutral pH state. CONSTITUTION: The electrolytic water making apparatus is equipped with an introducing pipe 4 for introducing water into an electrolytic cell 1, anode plates 3a and 3b arranged along the vertical surface of the electrolytic cell 1, the anode plates 2a and 2b arranged in the electrolytic cell 1 in opposed relation to the anode plates 3a and 3b and a lead-out pipe 6 for leading electrolytic water made in the electrolytic cell l out of the electrolytic cell 1. A large number of through-holes are formed to the cathode plates 2a and 2b, and the cathode plates 2a and 2b are allowed to approach the anode plates 3a and 3b to form narrow flow channels between both electrode plates 3a, 3b and 2a, 2b and nozzles 50 for turing the water from the introducing pipe 4 toward the through- holes are provided to allow water, which flows in the flow channels from the through-holes, to flow through the flow channels by the nozzles 50.

Description

Electrolytic Water Generator {ELECTROLYTE-CREATING APPARATUS}

The present invention is an apparatus for producing electrolyzed water that can use water to sufficiently improve the cleaning effect and to suppress oxidation in the cleaning of agricultural products, linens, dishes, cooking utensils, toilets, etc. without using a cleaning agent. It is about.

The conventional electrolytic water generating device arranges an ion permeable membrane between an anode plate and a cathode plate in an electrolytic cell to electrolyze raw water (for example, see Japanese Patent Application Laid-Open No. 54-72774). In tap water or ground water (well water) used as raw water, cations such as hydrogen ions, calcium ions, and magnesium ions, and anions such as hydroxyl ions and chlorine ions are present.

On the negative electrode side, hydrogen ions are attracted to generate hydrogen gas, and cations such as calcium and magnesium ions are attracted to precipitate a scale such as calcium or magnesium on the electrode surface. At this time, around the cathode, hydrogen ions are combined with electrons from the cathode to be released as hydrogen gas, so that the hydrogen ions are reduced, thereby generating alkaline water.

On the other hand, on the positive electrode side, hydroxyl ions, chlorine ions and the like are attracted to generate oxygen gas or chlorine gas. At this time, around the anode, acidic water is generated because the hydroxyl ions are released to the positive electrode and become oxygen gas.

In general, the alkaline water generated as described above is known to prevent acidification of blood or body fluids and is used as a drink or cooking water. In addition, the detergent is said to be easy to dissolve and suitable for the washing effect.

On the other hand, acidic water is known to have a bactericidal action, and is used as a bath or water for washing hands and face. However, acidic water is less permeable to contaminants such as fat than alkaline and tap water. Therefore, although surface sterilization is possible, it cannot be said to be suitable as washing water for removing fat containing bacteria.

That is, in the conventional electrolytic water generator, alkaline water is generated, and acidic water, which is not suitable for washing, is also generated. Therefore, there is a waste as the generating device of the water for cleaning, and it cannot be said that it is efficient or not.

In the conventional example of generating electrolytic water by calling the ionized water for washing, there is also an apparatus for generating electrolytic water by sintering a dolmarin ore called tourmaline together with a ceramic and acting water thereon. However, it is practically impossible to treat a large amount of water in electrolysis by dolmarins.

Accordingly, it is an object of the present invention to provide an apparatus for producing electrolyzed water, which does not generate alkaline water or acidic water, but can electrolytically decompose water to improve the washing effect even when the pH value is neutral.

In order to achieve the above object, the present invention is an electrolyzed water generating device for producing electrolyzed water from water or an aqueous solution, the electrolytic cell and the introduction tube for transporting water or an aqueous solution into the electrolytic cell, and the vertical or inclined plane in the electrolytic cell by An anode plate disposed, a cathode plate disposed to face substantially parallel to the anode plate, and a discharge pipe for discharging the electrolyzed water generated in the electrolytic cell from the electrolytic cell, wherein the cathode plate has a plurality of through holes formed therein. to be. Further, since the negative electrode plate is disposed in close proximity to the positive electrode plate, a narrow flow path is formed between the electrode plates on both sides, and a direction adjusting device for directing water or an aqueous solution from the introduction pipe to the through hole is provided. Water or an aqueous solution flows into the flow path from the through hole by the adjusting device so that the liquid flows in the flow path.

Water molecules are known to form clusters (aggregates of molecules formed by agglomeration of a plurality of molecules) by hydrogen bonds and exhibit properties such as macromolecules. However, when water is electrolyzed, water molecules produce oxygen gas, hydrogen gas and new water molecules by chemical reactions represented by the following formulas (1), (2) and (3).

^{_{H 2 O → H + + OH}} - ... (One)

_{^{2H + + 2e - → H 2}} ... (2)

_{^{4OH - → 4e - + O 2}} + 2H 2 O ... (3)

This chemical reaction causes the cluster to break down. As a result, the surface tension of water is reduced to increase the surface active effect, and the permeability to contaminants is improved. In addition, since the produced electrolyzed water contains abundant fine bubbles such as hydrogen gas and oxygen gas, the cavitation action (the generated bubbles become nuclei, and microcavities close to innumerable vacuum are generated. They create an impact force when they are destroyed), making it easier to remove dirt from the dirty soil.

Moreover, it was confirmed that the surface tension of tap water can be reduced from 0.0722N / m to about 0.0716N / m by electrolysis.

In the present invention, water or an aqueous solution is used as raw water. At this time, in order to obtain the chemical reaction of the above formulas (1) to (3), conductivity of raw water is required. Therefore, pure water (distilled water) can be used as water because the raw water itself needs to contain ions. And well water can be used. Moreover, as aqueous solution, the aqueous solution which added salt and citric acid can also be used.

The amount of electrolysis of water is proportional to the current flowing through the electrode. Therefore, in order to perform strong electrolysis, it is necessary to make current value as large as possible. Therefore, in the present invention, since the magnitude of the current is increased without significantly increasing the applied voltage, the distance between the electrodes is reduced. It is preferable that the space | interval between the said electrodes is generally 3.0 mm or less, More preferably, it is about 0.5 mm-2 mm. In view of this, it is preferable to provide a plurality of electrode units to increase the area of the electrodes.

Since the positive electrode plate and the negative electrode plate are disposed in substantially parallel planes facing each other, the spacing between the electrodes is kept substantially constant, so that the surface of the electrode plate can have an electrolytic action evenly.

In addition, the term "face" means that no diaphragm is provided between the positive electrode plate and the negative electrode plate.

On the other hand, if the interval between the electrodes is reduced, the inflow of raw water becomes difficult within that interval. Therefore, in this invention, many through-holes are formed in a negative electrode plate, and water is easy to flow in the flow path between electrodes. In addition, a direction adjusting device for directing raw water to the through-holes of the negative electrode plate was provided so that water was injected into the flow path between the electrodes. As such a direction adjusting device, a method of forming a plurality of nozzles in the introduction pipe is preferable.

When water enters the flow path between the two electrode plates, foreign matter flows in the flow path with bubbles and flows out from the upper gap through another through hole or between the electrode plates. Therefore, the two electrode plates are disposed along the vertical plane or the inclined plane without horizontally arranged so that the water including the bubbles easily flows.

When water is electrolyzed, fine bubbles of hydrogen gas and oxygen gas are generated. The microbubbles generated in this way become nuclei, and numerous microcavities close to a vacuum are generated, and an impact force is generated when these microcavities collapse. This phenomenon is called cavitation, and the energy generated when the microbubbles collapse is effective as a cleaning force. Therefore, in the present invention, the discharge tube is formed in the upper part of the electrolytic cell so that the microbubbles are discharged together with the electrolyzed water without being left in the electrolytic cell, and the electrolytic water is taken from the upper part of the electrolytic cell.

Scales, such as calcium and magnesium, are deposited on the negative electrode plate to gradually hinder the flow of electric current, thereby degrading electrolysis efficiency. Therefore, it is necessary to peel off and remove the scale attached to the electrode surface by automatically or manually converting the plus and minus of the voltage applied to the electrode after a certain time of operation of the electrolytic water generating device or during a non-operating time period. Since the peeled scale precipitates at the bottom of the electrolytic cell, a drain is provided at the bottom of the electrolytic cell to remove the scale from the electrolytic cell. Also, the peeled off scale and hanging on the electrode surface can be removed when raw water is injected by the direction controller.

1 shows an electrolytic water generating apparatus according to a first embodiment of the present invention, in which FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a front view showing a modification.

2 shows an electrolytic water generating apparatus according to a second embodiment of the present invention, where FIG. 2A is a plan view and FIG. 2B is a front view.

3 shows an electrolytic water generating apparatus according to a third embodiment of the present invention, where FIG. 3A is a plan view and FIG. 3B is a front view.

4 is a perspective view of an electrode device of a third embodiment according to the present invention.

5 is an exploded perspective view of the electrode device.

6 shows an electrolytic water generating apparatus according to a fourth embodiment of the present invention, where FIG. 6A is a front view and FIG. 6B is a side view.

※ Explanation of symbols about main part of drawing ※

Δ: spacing U: electrode unit

1: electrolytic cell 2a, 2b: negative electrode plate

3a, 3b: positive plate 4: inlet tube

5: discharge pipe 6: lead pipe

10a and 10b: negative electrode plates 11a and 11b: introduction tubes

14: electrolytic cell 15, 16: bipolar plate

17a, 17b and 18a, 18b: negative plate 19a, 19b: introduction tube

20: introduction tube

21: first insulating spacer 25: conductive spacer

26: conductive bolt 27: negative electrode connection rod

28: conductive spacer 29: conductive bolt

30: negative electrode connection rod 31: conductive positive electrode connection rod

32: conductive spacer 33: conductive bolt

34: conductive spacer 35: positive electrode connection rod

36: conductive bolt 50: through hole

51: Euro

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Figure 1 shows a first embodiment of the electrolytic water generating device of the present invention.

In the electrolytic cell 1, a pair of electrode units U is provided. Each electrode unit U is composed of negative electrode plates 2a and 2b having a plurality of through holes 50 formed therein, and positive electrode plates 3a and 3b facing each other at a predetermined interval Δ from the negative electrode plates 2a and 2b. have. Each of these electrode plates 2a, 3a and 2b, 3b faces each other and is arranged in parallel along a substantially vertical plane at the same time. An introduction tube 4 is provided between the negative electrode plates 2a and 2b facing each other, and the introduction tube 4 is provided upward from the bottom of the electrolytic cell 1. A discharge pipe 5 for discharging water in the electrolytic cell 1 is connected to the electrolytic cell 1 in the lower part of the electrolytic cell 1. Above the electrolytic cell 1 is provided with a discharge pipe 6 for deriving the generated electrolyzed water.

The introduction tube 4 is equipped with a plurality of nozzles 4a for ejecting water to the surface of the negative electrode plate 2a, and when water is pumped from the introduction tube 4 into the electrolytic cell 1, the introduction tube 4 Water is discharged from the plurality of nozzles 4a provided to the negative electrode plates 2a and 2b. In this way, water between the positive electrode plates 3a and 3b and the negative electrode plates 2a and 2b flows in from the nozzle 4a through the through hole 50. Water introduced in this way flows up along both electrode plates through the flow path 51 formed by the gap, or flows out between the other negative electrode plates 2a and 2b from the other through holes 50. The upper end of the introduction pipe 4 is closed.

When water is filled in the electrolytic cell 1 and the voltage is applied to the negative electrode plates 2a and 2b and the positive electrode plates 3a and 3b while the water is being discharged from the lead-out tube 6, the water is electrolyzed and the positive electrode plate ( Oxygen gas is generated from 3a and 3b, and hydrogen gas is generated from the negative electrode plates 2a and 2b. These gases are led out through the discharge pipe 6 together with the through holes 50 of the negative electrode plates 2a and 2b or the electrolyzed water generated by rising upward of the electrolytic cell 1 through the flow path 51.

When general tap water is used as raw water, tap water contains metal ions, such as calcium ion and magnesium ion. Calcium ions, magnesium ions, etc. receive electrons from the negative electrode plates 2a and 2b, are reduced to calcium and magnesium atoms, and precipitate as scale on the negative electrode plates 2a and 2b. That is, the calcium and magnesium ions contained in the tap water decrease, so the redox potential of the water decreases. According to the experiments attempted by the inventors, the redox potential was measured when tap water having a redox potential of about +350 mV was flowed at a flow rate of 15 liters / minute, and the redox potential of the electrolyzed water generated when 24 A was applied to the electrode was measured. Decreased to about -300 mV. It can be seen that the rust of the cleaning device and the pipe can be sufficiently prevented.

However, since the scale precipitates on the surfaces of the negative electrode plates 2a and 2b, the electrical resistance between the electrodes gradually increases. Therefore, if necessary, the voltage applied to the electrode plate is changed to a reverse voltage. When a reverse voltage is applied in this manner, the scale of the portion in direct contact with the electrode surface loses electrons and ionizes again and starts to dissolve. Therefore, the scale is peeled off from the negative electrode plates 2a and 2b and settles to the bottom of the electrolytic cell 1. After the application of the reverse voltage, the valve 7 of the discharge pipe 5 can be manually or automatically opened to remove the scale together with the water in the electrolytic cell 1.

At this time, the water supplied and discharged through the introduction pipe 4 is waterproof at the upper side away from the bottom of the electrolytic cell 1.

The negative electrode plates 2a and 2b are always filled with electrons when a voltage is applied, and therefore the negative electrode plates 2a and 2b are in a difficult state to be oxidized. However, since the positive plates 3a and 3b are always deficient in electrons in the state where a voltage is applied, the positive plates 3a and 3b are placed in an easily oxidized state (an easy to rust) state. Therefore, it is preferable that the positive electrode plates 3a and 3b select an antirust material, such as titanium, or coat them with platinum or iridium. In addition, since the reverse voltage is applied to remove the scale, it is preferable that the negative electrode plates 2a and 2b be surface-treated with the same material.

In order that the pressure discharged from each nozzle 4a of the introduction pipe 4 does not occur due to the hydraulic pressure, the total area of the plurality of nozzles 4a formed on the side surface of the introduction pipe 4 is lower than that of the introduction pipe 4. It is preferable to set larger than the cross-sectional area.

After discharging toward the electrode plate from the introduction tube (4), a stirring device such as a stirring fan or the like is built into the electrolytic cell 1 so that water or gas generated by electrolysis can be uniformly mixed in the raw water. It is advantageous.

In FIG. 1B, the negative electrode plates 2a and 2b are connected to each other, and the positive electrode plates 3a and 3b are connected to each other to apply a DC voltage from one power source. However, the current values flowing to both electrode units U may be different from each other due to the difference between the gap Δ and the surface state of each electrode plate. Therefore, it is desirable to provide a function capable of adjusting voltage so that each of the electrode units U can be connected to a constant voltage power source independently of each other so that electrolysis of almost the same amount can be performed.

Further, in order to allow the same amount of electrolysis to be performed in each electrode unit U, if a constant current power source is used instead of the constant voltage power supply, voltage adjustment is not necessary, which is more preferable. A flow rate sensor (not shown) is installed in the lead-out pipe 6 or the inlet pipe 4 to supply power to the electrode unit U after the flow sensor detects that water is supplied from the inlet pipe 4 into the electrolytic cell 1. Can be supplied.

The plurality of through holes 50 formed in the negative electrode plates 2a and 2b are intended to facilitate the inflow of water into the flow path 51 and to allow the generated hydrogen gas and oxygen gas to escape from the gap between the electrodes. Therefore, the shape of the through-holes 50 may be a long hole of circular, cross, square, or slit type, and for example, expanded metal may be used for the negative electrode plates 2a and 2b.

The electrolytic water generating device of the present invention uses tap water and well water as raw water. As an application method of the present apparatus, an aqueous solution containing sodium chloride, sodium hypochlorite or citric acid is used as raw water, so that a large amount of chlorine gas can be generated from the positive electrode plates 3a and 3b to impart disinfection and bleaching properties. In addition, by adding sodium hydrogen carbonate or the like to generate carbon dioxide gas in the positive electrode plates 3a and 3b, and at the same time to produce sodium hydroxide (caustic soda), water having a higher washing effect can be produced because it is made of alkaline water. However, when such an additive is added and electrolyzed, environmental problems due to drainage may occur, and thus sufficient drainage treatment apparatus is required.

In addition, as shown in the modified embodiment of FIG. 1C, instead of the nozzle 4a, a V-shaped direction control plate 52 is provided so that the raw water discharged from the tip of the introduction pipe 4 is directed to the negative electrode plates 2a and 2b. You may.

In addition, the inside of the electrolytic cell 1 may be formed into a cyclone (cyclon) shape to form a flow of water is turned up and rises.

Fig. 2 shows a second embodiment of the electrolytic water generating device of the present invention.

The positive electrode plate 9 is disposed in the middle of the electrolytic cell 8, and the negative electrode plates 10a and 10b are disposed at regular intervals Δ facing the opposite sides of the positive electrode plate 9. Introducing pipes 11a and 11b which face the cathode plates 10a and 10b on both sides are provided upward from the lower part of the electrolytic cell 8. A discharge pipe 12 for discharging water in the electrolytic cell 8 is connected to the bottom of the electrolytic cell 8. At the upper part of the electrolytic cell 8, a lead pipe 13 for leading the generated electrolyzed water is connected.

Since other configurations are the same as those described in FIG. 1, the same parts and corresponding parts are denoted by the same reference numerals, and detailed description thereof will be omitted.

3, 4 and 5 show a third embodiment of the electrolytic water generating apparatus of the present invention.

In this embodiment, the cathode plates 17a, 17b and 18a, 18b are disposed on both sides of the two cathode plates 15, 16 via first insulating spacers 21 on both sides thereof. In FIG. 5, a plurality of long second insulating spacers 22 are disposed between the pair of electrode units U adjacent to each other, that is, between the negative electrode plates 17a and 18a and between the negative electrode plates 17b and 18b. Is disposed, and the plurality of insulating bolts 23 and 24 are assembled and fixed so that each of the electrode plates 17a-15-17b and 18b-16-18a is maintained at a constant interval. The pair of negative electrode plates 17a and 17b are fixed to the negative electrode connection rod 27 with the conductive bolts 26 with the conductive spacers 25 interposed therebetween. Similarly, the negative electrode plates 18a and 18b are similarly fixed to the negative electrode connection rod 30 with the conductive bolts 29 with the conductive spacers 28 interposed therebetween. The positive electrode plate 15 is fixed to the conductive positive electrode connection rod 31 by the conductive bolt 33 with the conductive spacer 32 therebetween. Similarly, the positive electrode plate 16 is fixed to the positive electrode connection rod 35 by the conductive bolt 36 with the conductive spacer 34 interposed therebetween.

As shown in FIG. 3, introduction tubes 19a and 19b, which are upright from the introduction tube under the electrolytic cell 14, are disposed to face the negative electrode plates 17b and 18b, respectively. In addition, an introduction tube 20 having a nozzle formed at an upper end thereof is disposed at the bottom of the electrolytic cell 14. In the upper part of the electrolytic cell 14, the discharge pipe 6 for extracting the generated electrolytic water is arranged. In addition, when the reverse voltage is applied to remove the scale, the introduction pipe 20 can also serve as the discharge pipe 5 in FIG. 1.

When the electrolytic cell 14 is filled with water and voltage is applied to the negative electrode plates 17a, 17b and 18a and 18b and the positive electrode plates 15 and 16 under the state discharged from the lead-out tube 6, the water is electrolyzed. Water electrolysis and structural considerations are the same as those described with reference to FIG.

In this embodiment, since the structure of the electrode unit U is compact, the number of electrodes is large, and since it is a small device, a large amount of electrolytic water can be generated.

In addition, the electrode unit U may be configured in four sets, and the cathode plates of the two sets of electrode units U may be spaced apart from each other to face each other.

6 shows three embodiments of the electrolytic water generating apparatus of the present invention.

In the fourth embodiment, the electrolytic cell 1 can be configured in a state of being laid on its side. In addition, the introduction pipe 4 can be arranged horizontally long under the electrolytic cell 1.

In addition, in the present invention, for washing, washing seedless for hydroponic cultivation, washing cereals and vegetables, washing cut vegetables, washing utensils and kitchen utensils, washing hospital utensils, washing linnel fabric, washing industrial parts It can be applied to a wide range of applications such as washing toilets and toilets and piping.

Furthermore, the permeability of the electrolyzed water generating device produced by the electrolyzed water generating device of the present invention is improved, and it is effective in the use as immersion water in the soaking step of soybean in the tofu manufacturing step.

As described above, the electrolyzed water generating device of the present invention is a device that strongly electrolyzes water, and destroys clusters of water and lowers the surface tension of the water to improve the surface active effect. In addition, since it generates electrolytic water containing abundant micro-bubbles such as hydrogen gas and oxygen gas, it can be used as an excellent washing water without using a detergent because it has a cavitation effect in addition to the surfactant effect.

In addition, since acidic water and alkaline water are not separated, the pH value of the generated electrolytic water maintains the neutrality of the raw water. In addition, there is no toxicity to biological cells, safe and environmentally friendly, unless new chemicals are added.

In addition, since the redox potential of the electrolyzed water generated by the electrolytic water generating device of the present invention is reduced to about -300 mV, it is possible to prevent the rusting of the washing apparatus and the pipe.

Claims (7)

An electrolyzed water generating apparatus for producing electrolyzed water from water or an aqueous solution, comprising: an electrolyzer, an introduction tube for feeding water or an aqueous solution into the electrolyzer, an anode plate vertically or inclined in the electrolyzer, and facing substantially parallel to the anode plate; An electrolytic water generating device comprising a negative electrode plate disposed in an electrolytic cell and a lead-out tube for deriving electrolyzed water generated in the electrolytic cell, wherein the negative electrode plate has a plurality of through holes formed therein. An electrolyzed water generating apparatus for producing electrolyzed water from water or an aqueous solution, comprising: an electrolyzer, an introduction tube for feeding water or an aqueous solution into the electrolyzer, an anode plate vertically or inclined in the electrolyzer, and facing substantially parallel to the anode plate; It consists of a negative electrode plate disposed in the electrolytic cell and a lead-out tube for deriving the electrolyzed water generated in the electrolytic cell, the negative electrode plate is formed with a plurality of through holes, the negative electrode plate is disposed close to the positive electrode plate between the two electrode plates A narrow flow path is formed in the chamber, and by installing a direction adjusting device for directing the water or the aqueous solution introduced from the introduction pipe to the through hole, the electrolytic water is configured to flow in and flow from the through hole into the flow path. Device. The method according to claim 1 or 2, Electrolytic water generating apparatus, characterized in that the interval between the two electrode plates is set to 3.0mm or less. The method according to claim 1 or 2, The introduction tube has a charging portion charged into the electrolytic cell, wherein the charging portion is provided with a plurality of nozzles for discharging water or aqueous solution toward the negative electrode plate . The method of claim 4, wherein The nozzle of the introduction pipe is installed so as to be located at least in the lower portion of the negative electrode plate, the discharge pipe is characterized in that the electrolytic water generating device is disposed on the upper portion of the electrolytic cell. The method according to claim 1 or 2, The positive electrode plate is disposed substantially vertically, and is disposed to face another negative electrode plate substantially parallel to the positive electrode plate, apart from the existing negative electrode plate, so that the positive electrode plate is positioned in the middle between the pair of negative electrode plates. Electrolytic water generating device, characterized in that a plurality of through holes are also formed in the separately added negative electrode plate. The method of claim 6, Two sets of electrode units (U) consisting of the positive electrode plate and a pair of negative electrode plates are installed in the electrolytic cell, wherein each of the two negative electrode plates of the two electrode units (U) faces each other and is spaced apart from each other. Electrolyzed water generator.