JP2000212011A - Apparatus for generating and spraying strongly acidic germicidal water with low-concentration hypochlorous acid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small apparatus for generating and spraying a strongly acidic germicidal water with low-concentration hypochlorous acid, capable of being readily carried and having ensured sterilizing power of ejected water. SOLUTION: This spraying apparatus has a membrane-less type electrolytic cell 31, a saline solution tank 35, a means for sending a saline solution from a discharged water- collecting tank 36 and 35 to an electrolytic cell 31 by pressure, a spraying device 32, a direct current electric power unit 38, and a controller 39. The electrolytic cell 31 has a water-flow path formed without the membrane by a couple of smooth walls facing and approaching to each other in parallel, an anode plate forming at least a part of the wall at one side of the walls, a cathode plate forming at least a part of the other side, an acidic water- collecting flow path linked to the water flow path through the opening formed on the wall a part of which is formed by the anode plate in the downstream region of the water flow path, an alkaline water-collecting flow path linked to the downstream end of the water flow path, and a saline solution-supplying flow path linked to the upstream end of the water flow path. The saline solution-supplying flow path is lined to the collection tank 35. The alkaline water-collecting flow path is linked to the collection tank 36. The acidic water- collecting flow part is lined to the acidic water-discharging opening. The acidic water- discharging opening is connected to the spraying device 32. The spraying device 32 has a piezoelectric element and a perforated plate having one terminal fixed to the piezoelectric element.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray apparatus for producing a strongly acidic sterilized water containing low concentration hypochlorous acid.

[0002]

2. Description of the Related Art An aqueous solution of hypochlorous acid differs in the state of dissolved chlorine compounds depending on the pH of the aqueous solution, and has different sterilizing power. When the pH of the aqueous solution of hypochlorous acid is 8 or more, that is, when the aqueous solution of hypochlorous acid is alkaline, the aqueous solution contains hypochlorite ion (Cl
O ^-) is present mainly. Therefore, the alkaline hypochlorous acid aqueous solution has a weak sterilizing power. PH of hypochlorous acid aqueous solution is 7
When it is below, that is, when the aqueous solution of hypochlorous acid becomes acidic, the sterilizing power is 10 to 100 as compared with hypochlorite ion.
The abundance of hypochlorous acid (HC1O), which is twice as strong, is increased in place of hypochlorite ion. Therefore, the acidic hypochlorous acid aqueous solution has a strong sterilizing power. PH of the aqueous solution of hypochlorous acid is 5.
When the value is 5 or less, almost 100% of the chlorine compound in the aqueous solution of hypochlorous acid becomes hypochlorous acid, and the sterilizing power of the aqueous solution of hypochlorous acid is further enhanced. When the pH of the aqueous hypochlorous acid solution becomes 3 or less, a part of chlorine gas (C1 ₂ ) having stronger sterilizing power than hypochlorous acid is generated, and the sterilizing power of the aqueous hypochlorous acid solution is further enhanced. Acidic sterilized water containing hypochlorous acid has the ability to instantly sterilize and sterilize bacteria such as Escherichia coli, MRSA, and Staphylococcus aureus. Apply acidic sterilized water containing hypochlorous acid to the inflamed area of atopic dermatitis,
A healing effect can be obtained by applying the composition to a gangrene area caused by diabetes or the like or to a bed-sore section of a bedridden elderly person or the like. It is thought that the above effect is obtained by sterilizing the MRSA that has propagated in the above sites with acidic sterilized water containing hypochlorous acid to prevent itching and suppuration in these sites. Applying acidic sterilized water containing a high concentration of hypochlorous acid to the skin may cause skin damage. Therefore, it contains hypochlorous acid at a low concentration of about 2 ppm specified by the Japan Water Works Association Water Purifier Type Examination Standards.
There is a demand for an apparatus that generates and discharges sterile water of strong acidity that is applicable to the human body and has a value of 3 or less. As a hypochlorous acid-containing acidic water generating apparatus, a continuous apparatus including a diaphragm type electrolysis tank is known. In this apparatus, saline solution is passed through a channel formed between an anode plate and a cathode plate facing each other across a diaphragm in an electrolysis tank, and a DC voltage is applied between the anode plate and the cathode plate. The electrolysis of the running water of the saline is performed by applying the voltage. At the anode, hydroxyl ions (OH ⁻ ) present in the saline solution give electrons to the anode, become oxygen gas, and are removed from the water. As a result,
Hydrogen ions (H ⁺ ) in running water flowing between the diaphragm and the anode
As the concentration increases, the running water becomes acidic. Also, chloride ion in the anode is present in saline (C1 ^-) gives electrons to the anode, chlorine gas (C1 ₂₎ is generated. The generated chlorine gas dissolves in acidic running water and becomes hypochlorous acid. At the cathode, hydrogen ions (H ⁺ ) present in the saline solution take electrons from the cathode, become hydrogen gas, and are removed from the water. At the cathode, sodium ions (N
a ⁺⁾ and hydroxyl ions (OH ^-) and caustic soda are produced binding to. As a result, the flowing water flowing between the diaphragm and the cathode becomes alkaline. The presence of the diaphragm prevents mixing of the product at the anode and the product at the cathode. By extracting the flowing water flowing between the diaphragm and the anode from the electrolysis tank, hypochlorous acid-containing acidic water can be obtained.

[0003]

A conventional continuous apparatus for producing hypochlorous acid-containing acidic water having a diaphragm type electrolysis tank has the following problems. In a conventional continuous hypochlorous acid-containing acidic water generating apparatus equipped with a diaphragm type electrolysis tank, a strong acid containing hypochlorous acid at a low concentration of about 2 ppm and having a pH of 3 or less and applicable to the human body. No germicidal water could be obtained. Here, “ppm” is the weight concentration in terms of chlorine atom and the unit is “C
lmg / liter ". According to the study of the present inventor, a continuous type hypochlorous acid-containing acidic water generator equipped with a conventional diaphragm type electrolysis tank contains hypochlorous acid at a low concentration of about 2 ppm, and has a pH of 3 or less. However, the reason why it was not possible to obtain highly acidic sterilized water applicable to the human body is as follows. In order to lower the pH of the electrolyzed water, it is necessary to increase the amount of current flowing between the electrodes to increase the amount of electrolyzed saline and increase the hydrogen ion concentration in the electrolyzed water. Electrons are exchanged between the hydroxide and hydrogen ions and the electrode on the electrode surface.However, when the amount of current increases, the supply of hydroxyl and hydrogen ions to the electrode surface becomes insufficient and the current amount decreases. The increase is regulated. When the voltage applied between the electrodes is increased in order to eliminate the insufficient supply of hydroxyl ions and hydrogen ions to the electrode surface, the overvoltage at the anode increases, and the generation of chlorine gas is promoted. As a result, the flowing water layer along the anode becomes highly concentrated hypochlorous acid-containing strongly acidic water. In order to solve the shortage of supply of hydroxyl ion and hydrogen ion to the electrode surface,
A countermeasure to increase the flow velocity of the saline solution flowing through the flow channel by reducing the distance between the electrodes can be considered, but the distance between the electrodes cannot be reduced because a diaphragm exists between the electrodes. As can be seen from the above discussion, a continuous type hypochlorous acid-containing acidic water generator equipped with a conventional diaphragm type electrolysis tank has a low concentration of about 2 ppm, contains hypochlorous acid, and has a pH of 3 or less. It is not possible to obtain sterile water of strong acid that can be applied to water.
In addition, in a continuous type hypochlorous acid-containing acidic water generating apparatus equipped with a conventional diaphragm type electrolysis tank, it contains hypochlorous acid at a low concentration of about 2 ppm and has a pH of 3 or less and is applicable to the human body. Because it was not possible to obtain sterile water with strong acidity,
Strongly acidic sterilizing water which is composed only of electrolyzed water of saline and contains hypochlorous acid at a low concentration of about 2 ppm and has a pH of 3 or less and is applicable to the human body has not yet been used. On the contrary, experimental results using low-concentration hypochlorous acid-containing strong acid water obtained by diluting high-concentration hypochlorite-containing strong acid water obtained by electrolysis of saline with sterile distilled water Based on the above, even a research report that strong acid water containing hypochlorous acid at a low concentration of about 2 ppm, which is an electrolyzed water of saline containing no additives other than water, has no bactericidal effect (Pharmacology and Clinical Practice 1993 /
VOL. 3 / NO. 9 / SEP. Page 71, Table 1). The present inventor considers that hypochlorous acid is decomposed in the course of dilution and is separated from the diluted aqueous solution as chlorine gas, so that the sterilizing effect is reduced.

[0004] The diaphragm type electrolysis tank is large in size because a diaphragm is interposed between the electrodes. A continuous type hypochlorous acid-containing acidic water generator having a conventional diaphragm type electrolysis tank is too large in size to be portable. Conventionally, hypochlorous acid-containing acidic water generated by a continuous hypochlorous acid-containing acidic water generator equipped with a diaphragm type electrolysis tank is stored in a tank, and the stored hypochlorous acid-containing acidic water is stored in a small tank. It was transferred to a container or transferred to a spray device for use. Hypochlorous acid is easily decomposed by ultraviolet rays, and the chlorine component evaporates over time. For this reason, there was a problem that the sterilizing power of the hypochlorous acid-containing acidic water was reduced during storage in the tank.

[0005] Since inflammation of atopic dermatitis often occurs in hidden parts of the body, it is convenient to have a hypochlorous acid-containing acidic water generating and discharging device that can be used in a bathroom. The conventional continuous hypochlorous acid-containing acidic water generator equipped with a conventional diaphragm-type electrolysis tank has a minimum electrode interval of about 4 mm due to the intervening diaphragm between the electrodes. Was driven by a household AC power supply because of its high electrical resistance and required a large amount of power for electrolysis. Normally, there is no household AC power supply in the bathroom, so a hypochlorous acid-containing acidic water generator based on a continuous hypochlorous acid-containing acidic water generator equipped with a conventional diaphragm type electrolysis tank is used. There was a problem that the discharge device could not be used in a bathroom.

As a result of intensive studies, the inventor of the present invention electrolyzed saline using a continuous type hypochlorous acid-containing acidic water generating apparatus provided with a non-diaphragm-type electrolysis tank to obtain 2 ppm.
It has been found that highly acidic water containing hypochlorous acid at a low concentration and having a pH of 3 or less and applicable to the human body can be obtained, and that the strongly acidic water has sufficient bactericidal activity. The present invention is small in size, easy to carry, can produce low-concentration hypochlorous acid-containing strong acid sterilized water, and has a low-concentration low-concentration hypochlorous acid-containing strong acid water that has a guaranteed sterilizing power. An object of the present invention is to provide an apparatus for generating and spraying chlorite-containing strongly acidic sterilized water. Further, the present invention provides a spray apparatus for producing a low concentration hypochlorous acid-containing strong acid sterilizing water which can be driven by a battery and does not require much electric power for the electrolysis of a saline solution and can be used in a bathroom. The purpose is to do.

[0007]

In order to solve the above-mentioned problems, the present invention provides a non-diaphragm type electrolysis tank, a saline solution tank, a waste water recovery tank, and a non-diaphragm solution for transferring a saline solution from a saline solution tank. A non-diaphragm-type electrolysis tank, which is provided with a pumping means for pressure-feeding to the electrolysis tank, a spraying device, a DC power supply device, and a control device. A water flow passage formed by a plurality of wall surfaces, an anode plate forming at least a part of one of the pair of wall surfaces, a cathode plate forming at least a part of the other of the pair of wall surfaces, and An acidic water recovery flow path that communicates with the water flow path through an opening formed in the wall where the anode plate forms a part in the basin; an alkaline water recovery flow path that communicates with the downstream end of the water flow path; Salt water supply passage communicating with the upstream end of the road The a saline supply channel communicates with the brine tank, alkaline water recovery channel communicates with the discarded water recovery tank, the acid water recovery channel communicates with the acidic water discharge outlet,
The acidic water discharge port is connected to a spraying device, wherein the spraying device has a piezoelectric element and a perforated plate having one end fixed to the piezoelectric element. I will provide a.

[0008] In the present invention, a non-diaphragm type electrolysis tank, a saline solution tank, a waste water recovery tank, a pressurizing means for feeding a saline solution from the saline solution tank to the non-diaphragm type electrolysis tank, a spraying device, , A DC power supply, and a control device,
The non-diaphragm type electrolysis tank has a water flow passage formed by a pair of smooth wall surfaces that are opposed to each other in parallel and do not pass through a diaphragm, and an anode plate that forms at least a part of one of the pair of wall surfaces. And a cathode plate forming at least a part of the other of the pair of wall surfaces, an acidic water recovery flow passage communicating with a downstream end of the water flow passage, and a cathode plate partially forming the downstream region of the water flow passage. An alkaline water recovery flow path that communicates with the water flow path through an opening formed in the wall surface; and a saline supply flow path that communicates with the upstream end of the water flow path. The acidic water recovery flow path communicates with the acidic water discharge port, the acidic water discharge port is connected to the spray device, the alkaline water recovery flow path communicates with the waste water recovery tank, and the spray device communicates with the piezoelectric element. Having a perforated plate fixed at one end to the piezoelectric element. Providing a low concentration hypochlorous acid-containing strong acid sterilizing water generating and spraying device according to.

In the apparatus for producing and spraying the strongly concentrated sterile water containing hypochlorous acid, according to the present invention, the saline solution stored in the saline solution tank is sent to the non-diaphragm type electrolysis tank by the pumping means. The saline solution flows into the saline solution supply channel of the diaphragmless electrolysis tank, and further flows into the water channel. Between the anode plate forming at least a part of one of the pair of wall surfaces forming the water flow passage and the cathode plate forming at least a part of the other of the pair of wall surfaces forming the water flow passage, by a DC power supply device A DC voltage is applied, and the running water of the saline solution flowing through the flow passage between the anode plate and the cathode plate is electrolyzed. Hypochlorous acid-containing acidic water generated near the anode and flowing along the wall surface of the water passage where the anode plate forms a part, in the downstream region of the water passage, the anode plate forms at least a part Alkaline water that flows into the acidic water recovery flow path through the opening formed in the wall surface and is discharged through the acidic water discharge port or flows along the wall surface of the water flow path where the cathode plate forms a part In the downstream area of the flow passage, the cathode plate flows into the alkaline water recovery flow passage through an opening formed in the wall surface forming at least a part of the flow passage and is removed, and then the anode plate forms a part of the flow passage. Hypochlorous acid-containing acidic water flowing along the wall of the water flow channel flows into the acidic water recovery flow channel from the downstream end of the water flow channel, is discharged through the acidic water discharge port, and is sprayed by the spray device. The alkaline water taken out of the non-diaphragm type electrolysis tank is discarded and flows into a water recovery tank. The operation of the pumping means and the diaphragmless electrolysis tank is controlled by a control device.

In the apparatus for producing and spraying a strongly concentrated sterilized water containing low-concentration hypochlorous acid according to the present invention, the anode plate and the cathode plate of the non-diaphragm type electrolysis tank are opposed to each other without the interposition of a diaphragm. As compared with the production / discharge apparatus using the diaphragm type electrolysis tank, the distance between the electrodes can be narrowed to reduce the electric resistance of the saline solution existing between the electrodes, and the saline solution can be electrolyzed with low power. As a result, the size of the non-diaphragm type electrolysis tank due to the narrowing of the distance between the electrodes, and the downsizing of the DC power supply device and the control device due to the power saving, the low-concentration hypochlorous acid-containing strongly acidic sterilizing water according to the present invention. The generation and spraying device can be made compact and portable as a whole. By making the entire apparatus compact and portable, a user can easily carry the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing and spraying apparatus to an arbitrary place for use. Therefore, this device has high usability. In addition, in this apparatus, by reducing the size of the non-diaphragm-type electrolysis tank, the mode of use can be reduced by producing a low-concentration hypochlorous acid-containing strongly acidic sterilized water by an amount corresponding to the necessity. The chloric acid-containing strongly acidic sterilized water can be used up on the spot. In this case, the generated low-concentration hypochlorous acid-containing strongly acidic germicidal water is immediately used, so that the sterilizing power of the low-concentration hypochlorous acid-containing strong-acid germicidal water to be used is guaranteed.

[0011] In the spray apparatus for producing a strongly acidic sterilized water containing low-concentration hypochlorous acid according to the present invention, the voltage applied between the electrodes is reduced to reduce the overvoltage at the anode by narrowing the distance between the electrodes. In addition, the flow rate of the saline solution flowing in the water flow passage between the electrodes can be increased to increase the amount of hydroxyl ions and hydrogen ions supplied to the electrode surface. Can be made into a laminar flow. Therefore, in the present hypochlorous acid-containing acidic water generating and spraying apparatus, electrolysis of saline can be promoted while suppressing excessive generation of chlorine, and mixing of flowing water near the anode with flowing water near the cathode can be suppressed. Accordingly, it is possible to produce a highly acidic sterile water containing hypochlorous acid at a low concentration of about 2 ppm and having a pH of 3 or less and applicable to the human body.

[0012] In the spray device for producing a strongly acidic sterilized water containing low-concentration hypochlorous acid, the distance between the electrodes between the anode plate and the cathode plate of the non-diaphragm-type electrolysis tank is reduced to reduce the electrolysis voltage. It is possible to realize a battery for the electrolysis power supply through voltage reduction and reduction in electrolysis power. By connecting the acidic water discharge port to the spray device, it is possible to spray the strongly acidic sterilizing water. By spraying the sterilized water, the sterilized water can be applied to the inflamed portion without excess or shortage. By forming the spraying device with the piezoelectric element and the porous plate having one end fixed to the piezoelectric element, it is possible to reduce the size of the spraying device, reduce the power consumption, and use a battery for the driving power supply.

[0013] In a preferred embodiment of the present invention, the entire surface of the perforated plate including the inner surface of the hole is coated with an acid-resistant material. By coating the entire surface of the perforated plate including the inner surfaces of the holes with an acid-resistant material, it is possible to improve the corrosion resistance of the perforated plate against low-concentration hypochlorous acid-containing strongly acidic sterilized water.

[0014] In a preferred embodiment of the present invention, the spraying device has an open spray tank communicating with the acidic water recovery flow path of the diaphragmless electrolysis tank, and the open end of the open spray tank is covered with a perforated plate. I have. The spray device is provided with an open spray tank communicating with the acidic water recovery flow path of the diaphragmless electrolysis tank,
By covering the open end of the open spray tank with a perforated plate, it flows into the open spray tank from the acidic water recovery channel of the diaphragmless electrolysis tank, fills the open spray tank, and immerses one surface of the perforated plate. Concentration hypochlorous acid containing strong acid sterilized water,
It is sprayed from the other side of the perforated plate through a number of micro holes formed in the perforated plate. Since the low-concentration hypochlorous acid-containing strongly acidic sterilized water supplied from one surface of the perforated plate is jetted from the other surface of the perforated plate, a stable and good spray state can be obtained.

In a preferred embodiment of the present invention, the distance between the perforated plate and the bottom wall of the open spray tank facing the perforated plate is from about 0.5 mm to about 1.5 mm. By setting the distance between the perforated plate and the bottom wall of the open spray tank facing the perforated plate to about 0.5 mm to about 1.5 mm, the porous tension due to the surface tension of the low-concentration hypochlorous acid-containing strongly acidic sterilizing water is obtained. It is possible to prevent a situation in which the plate is attracted to the bottom wall of the open spray tank and the vibration of the perforated plate is stopped, or the vibration of the perforated plate is restricted by an increase in the amount of additional water.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. As shown in FIG. 1, a low-concentration hypochlorous acid-containing strongly acidic sterilizing water generating and spraying device A according to the present embodiment is a palm-sized having a non-diaphragm-type electrolysis tank 31, a spraying device 32, and a hand switch 33. A main body 40 having an electrolysis spray unit 34, a saline solution tank 35, a waste water recovery tank 36, a pump 37, a DC power supply 38 using a dry battery or a rechargeable battery as a power source, and a controller 39, and a saline solution supply tube 41.
Waste water drain tube 42 and electrolysis wires 43a, 4
3b, a wire harness 44 for connecting the main body 40 and the electrolysis spray unit 34 having the wires 43c and 43d for the piezoelectric element and the wires 43e and 43f for the hand switch is provided.
The control device 39 includes a spray device driving circuit including a constant voltage circuit and a high frequency generation circuit, an electrolysis tank driving circuit including a constant current circuit, a pump driving circuit including a constant voltage circuit, and a CPU. .

As shown in FIGS. 2 and 3, the non-diaphragm type electrolysis tank 31, the spraying device 32 and the hand switch 33 of the electrolysis spraying unit 34 have a diameter × thickness of about 90 mm × about 3 mm.
It is housed in a thick disk-shaped case 45 of 5 mm. The case 45 is formed with an acidic mist blowing port 45a. Salt water tank 35 of main body 40 and waste water recovery tank 3
6, a pump 37, a DC power supply 38 using a dry battery or a rechargeable battery as a power supply, and a control device 39 are approximately 1 mm in diameter × height.
It is housed in a bottomed cylindrical case 46 measuring 05 mm × about 180 mm. As shown in FIGS. 2, 3A and 3B, the electrolysis spray unit 34 and the harness 44 can be stored in the opening of the main body 40 and taken out from the opening of the main body 40. As shown in FIGS. 3B and 3C, by engaging a groove 45b formed in the case 45 with a flange 46a formed around the opening of the case 46, the electrolytic spray unit 34 is formed. Can be locked to the main body 40 in an upright state.

As shown in FIGS. 4 (a), 5 and 6, the non-diaphragm type electrolysis tank 31 is about 60 mm × length × width × thickness.
Approximately 50mm x 5mm resin pressure resistant case 47, vertical x
Two electrode plates, an anode plate 49 and a cathode plate 50, are disposed in a recess of a resin pressure-resistant cover 48 of about 60 mm × about 50 mm × about 7 mm in width × thickness with two resin spacers 51 interposed therebetween. , And the case 47 and the cover 48 are screwed to each other in a watertight manner. The anode plate 49 is made of a platinum-plated titanium plate, and has a dimension of about 20 mm × about 16 mm (excluding vertical and horizontal (excluding a contact portion with the spacer 51)).
The cathode plate 50 is made of a platinum-plated titanium plate,
The dimension of length x width (excluding the contact part with the spacer 51) is about 2
It is 5 mm x about 16 mm. The dimensions of the electrode plates 49 and 50 are determined by a set amount of electrolysis per unit time determined from a set amount of spray per unit time determined in consideration of spraying sterilized water onto an affected part occupying a relatively narrow area of the human body surface. It is determined in consideration of the amount of current per unit amount of electrolysis required to obtain a strongly acidic water having a pH of 3 or less, and the upper limit of the current density determined from the need to suppress the amount of chlorine generated. The electrode plates 49 and 50 are connected to terminals (not shown) and the harness 44.
Are connected to the electrolysis tank drive circuit of the control device 39 via the electrolysis wires 43a and 43b. Case 4
A salt water inlet 52 and an alkaline water outlet 53 are formed in 7, and an acidic water outlet 54 is formed in the cover 48.

A water passage 55 is formed between the anode plate 49 and the cathode plate 50. A portion near the downstream end of the water passage 55 is formed by a smooth surface 48 a extending flush with the anode plate 49 formed in the concave portion of the cover 48 and the cathode plate 50. The distance between the anode plate 49 and the cathode plate 50 is about 0.
It is set to 2 mm to 0.5 mm. The distance between the electrodes is
Set amount of electrolysis per unit time and battery driven pump 3
7, an appropriate water flow resistance of the water flow path 55 determined from the output of the fuel cell, a reduction in the voltage between the electrodes for realizing electrolysis by battery driving, and a non-diaphragm type electrolysis tank for reducing the initial amount of water at the start of spraying. It is determined in consideration of the amount of water remaining in the building. The upstream end of the water passage 55 communicates with the saline supply passage 56. The saline solution supply channel 56 is formed by the case 47 and the cover 48, and extends over the entire lateral length of the electrode plate. The saline solution supply passage 56 communicates with the saline solution inlet 52. The saline solution inlet 52 communicates with the saline solution tank 35 of the main body 40 via the saline solution supply tube 41 of the harness 44 and the pump 37 of the main body 40. The downstream end of the water passage 55 communicates with the alkaline water recovery passage 57. The alkaline water recovery channel 57 is provided with a case 47.
And the cover 48, and extends over the entire length of the electrode plate in the lateral direction. Alkaline water recovery channel 5
The capacity of 7 is set to be sufficiently larger than the capacity of the water passage 55. The downstream end of the alkaline water recovery flow path 57 communicates with the alkaline water outlet 53. The alkaline water outlet 53 communicates with the waste water recovery tank 36 of the main body 40 via the waste water drain tube 42 of the harness 44. An acidic water recovery flow channel 58 is formed in the cover 48 adjacent to the downstream end of the anode plate 49 and extends over the entire length of the anode plate 49 in the lateral direction. The acidic water recovery channel 58 communicates with the acidic water outlet 54.

As shown in FIG. 4, the spray device 32 has a vertical x
A resin cover 59 of about 50 mm × about 50 mm × about 3 mm in width × thickness and a piezoelectric element 60 of about 20 mm × about 17 mm × about 1 mm in a concave portion of the pressure-resistant cover 48 are provided. One surface of the element 60 is fixed to the cover 59, and one end of the other surface of the piezoelectric element 60 is provided with a perforated plate 61 of about 20 mm × about 17 mm × about 0.05 mm in thickness.
Of the cover 59 and the cover 59 and the cover 48 are screwed together. The perforated plate 61 covers an open spray tank 62 which is a recess formed in the cover 48. The open spray tank 62 communicates with the acidic water recovery flow path 58 via the acidic water outlet 54. A gold electrode (not shown) is attached to the one surface and the other surface of the piezoelectric element 60, and the electrode is connected to a terminal (not shown) and a harness 44.
Are connected to the spray device drive circuit of the control device 39 via the piezoelectric element wires 43c and 43d. Perforated plate 61
Consists of an acid-resistant noble metal plate of platinum, gold, silver or the like having a large number of holes having a diameter of about 0.01 to 0.02 mm, or a large number of holes having a diameter of about 0.01 to 0.02 mm. The entire surface including the inner surface of the hole of the formed nickel plate is made of platinum, gold,
Physical vapor deposition of noble metals such as silver, titanium nitride, titanium carbide, etc.
It is formed by plating by chemical vapor deposition or coating with Teflon resin or the like to improve acid resistance. Piezoelectric element 6
The acid resistance is improved by coating the joint between the zero and the perforated plate 61 with a resin or the like. The distance between the perforated plate 61 and the bottom wall of the open spray tank 62 facing the perforated plate 61 is about 0.5 mm to about 1.5 mm. The distance is
If the distance is too short, the perforated plate is adsorbed on the bottom wall of the open spray tank due to the surface tension of hypochlorous acid-containing acidic water, and the vibration of the perforated plate stops.If the distance is too long, the added water mass increases. It is determined in consideration of the restriction of vibration of the perforated plate. An opening 59 a is formed in the cover 59 so as to face the porous plate 61. The hand switch 33 is connected to the CPU of the control device 39 via the switch wires 43 e and 43 f of the harness 44.

As shown in FIG. 7, the harness 44 includes the above-mentioned saline solution supply tube 41, waste water drainage tube 42,
Electric wires 43a to 43f and an inner sheath 63 for bundling them
And an outer sheath 64 for maintaining the shape. The inner diameter of the saline solution supply tube 41 is set to about 1.4 mm, and the inner diameter of the waste water drain tube 42 is about 1.0 mm.
mm. Therefore, the saline solution supply tube 4
The ratio of the channel cross-sectional area of 1 to the channel cross-sectional area of the waste water drain tube 42 is set to 2: 1. When the inner diameter of the saline solution supply tube 41 and the inner diameter of the waste water drain tube 42 are large, the inner diameter corresponds to the case where the height of the electrolysis spray unit 34 fluctuates during use of the present apparatus A. When the load fluctuation of the pump 37 is large, the fluctuation of the flow rate and, consequently, the fluctuation of the spray amount are large, and conversely, if the inner diameter is small,
The setting is made in consideration of the fact that the water flow resistance increases, the load on the pump 37 increases, and it becomes difficult to convert the pump drive power supply into a battery.

The operation of the apparatus A for producing and spraying the strong acid sterilizing water containing low concentration hypochlorous acid having the above-described structure will be described below.
The user first holds the electrolytic spraying unit 34 stored in the main body 40 in the state shown in FIG.
As shown in the figure, the electrospray unit 34 is brought closer to the inflamed part of atopic dermatitis, the gangrene part due to diabetes, or the bedsore of a bedridden elderly person, etc.
The acidic mist outlet 45a is directed to the inflamed part, the gangrene part, the bedsore, etc., and then the hand switch 33 is pressed with the finger of the hand holding the electrolysis spray unit 34 to start the control device 39. The CPU of the control device 39 is started, the pump 37 is started via the pump driving circuit, the electrolytic power is supplied to the non-diaphragm type electrolysis tank 31 via the electrolysis tank driving circuit and the harness 44, and the spraying device is started. Drive circuit and harness 44
And a high-frequency piezoelectric element driving power is supplied to the spraying device 32 via. As shown by the arrow in FIG. 1, the saline solution is supplied from the saline solution tank 35 to the harness 44 by the operation of the pump 37.
Through the saline solution supply tube 41 to the non-diaphragm type electrolysis tank 31.

As shown by the arrows in FIG. 6, the saline solution flowing into the saline solution inlet 52 of the non-diaphragm type electrolysis tank 31 flows into the saline solution supply channel 56 and flows through the saline solution supply channel 56.
It flows into the water passage 55. A DC voltage is applied between the anode plate 49 and the cathode plate 50 via the electrolysis tank drive circuit of the control unit 39, and the running water of the saline solution flowing through the water passage 55 is electrolyzed. Hypochlorous acid-containing acidic water is generated near the anode plate 49, and alkaline water is generated near the cathode plate 50. The ratio between the amount of hypochlorous acid-containing acidic water generated near the anode plate 49 and the amount of alkaline water generated near the cathode plate 50 is approximately 1: 1. As shown by the arrow in FIG.
The hypochlorous acid-containing acidic water flowing along the flow path 9
In the downstream area 5, the water flows into the acidic water recovery channel 58 adjacent to the downstream end of the anode plate 49 and extending over the entire length of the anode plate 49 in the lateral direction. The hypochlorous acid-containing acidic water that has flowed into the acidic water recovery channel 58 flows out of the non-diaphragm type electrolysis tank 31 through the acidic water outlet 54. As shown by arrows in FIG. 6, the alkaline water generated near the cathode plate 50 and flowing along the cathode plate 50 flows into the alkaline water recovery flow channel 57 from the downstream end of the water flow channel 55. The alkaline water flowing into the alkaline water recovery flow path 57 flows out of the non-diaphragm type electrolysis tank 31 through the alkaline water outlet 53.

The hypochlorous acid-containing acidic water flowing out of the non-diaphragm type electrolysis tank 31 through the acidic water outlet 54 flows into the open spray tank 62 of the spraying device 32 and the open spray tank 6.
Meet 2. The hypochlorous acid-containing acidic water filling the open spray tank 62 soaks one surface of the porous plate 61 covering the open end of the open spray tank 62. Piezoelectric element 60 of spray device 32
A high-frequency voltage is applied to the piezoelectric element 60 via a sprayer driving circuit, and the piezoelectric element 60 expands and contracts at a high frequency. The perforated plate 61 fixed to the piezoelectric element 60 vibrates at a high frequency. The hypochlorous acid-containing acidic water that fills the open spray tank 62 and soaks one surface of the perforated plate 61 is atomized through a number of micropores formed in the perforated plate 61, From the surface, the opening 59a of the cover 59 and the acid mist outlet 4 of the case 45
5a. The sprayed hypochlorous acid-containing acidic water is applied to an inflamed part of atopic dermatitis, a gangrene part due to diabetes mellitus, or a bed sore of a bedridden elderly person and the like, and sterilizes MRSA propagated in the part. To prevent itching and suppuration of the area.

The alkaline water flowing out of the non-diaphragm type electrolysis tank 31 through the alkaline water outlet 53 is supplied to the harness 4.
The wastewater flows into the wastewater recovery tank 36 of the main body 40 through the wastewater drainage tube 42 of No.4. After the spraying, the user presses the hand switch 33 to stop the operation of the control device.
The operation of the CPU of the control device 39 stops, and the operations of the pump 37, the diaphragmless electrolysis tank 31, and the spray device 32 stop. When the operation of the pump 37 is stopped, the supply of the saline solution to the diaphragmless electrolysis tank 31 is stopped. The user supplies the saline solution to the saline solution tank 35 of the main body 40 as necessary,
The alkaline water is discharged from the waste water recovery tank 36, and the battery of the DC power supply 38 is replaced.

In the low-concentration hypochlorous acid-containing strongly acidic germicidal water producing and spraying apparatus A, a small-sized electrolysis tank 31 is used to produce a low-concentration hypochlorous acid-containing strongly acidic water containing a necessary amount. And the diaphragmless electrolysis tank 31 and the spraying device 3
2 is integrated as an electrolysis spraying unit 34, and the hypochlorous acid-containing acidic water generated in the non-diaphragm type electrolysis tank 31 is immediately sprayed through the spraying device 32 without water storage and used up on the spot. The sterilizing power of the sprayed hypochlorous acid-containing acidic water is always guaranteed.

In the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing and spraying apparatus A, the anode plate 49 and the cathode plate 50 of the non-diaphragm type electrolysis tank 31 face each other without passing through the diaphragm. The distance between the electrodes is smaller than that of a conventional apparatus for producing hypochlorous acid-containing acidic water using a diaphragm type electrolysis tank, and the electric resistance of the saline solution existing between the electrodes is smaller. Therefore, in the present apparatus A, the saline solution is electrolyzed with less electric power as compared with a hypochlorous acid-containing acidic water generator using a conventional diaphragm type electrolysis tank. As a result, the entire device is reduced in size due to the reduction in the size of the non-diaphragm type electrolysis tank 31 due to the reduction in the distance between the electrodes and the reduction in the size of the DC power supply device 38 and the control device 39 due to the reduction in power. The electrolytic spray unit 34 is palm-sized. Since the entire apparatus is miniaturized and portable, a user can easily carry the apparatus A to an arbitrary place and use it. Since the electrolysis spray unit 34 is palm-sized, the user holds the electrolysis spray unit 34 connected to the main body 40 via the harness 44 in his / her hand and places hypochlorous acid in any part of the body. Acidic water can be applied. Therefore, the usability of the device A is high.

In the low-concentration hypochlorous acid-containing, strongly acidic sterilizing water producing and spraying apparatus A, the voltage applied between the electrodes is low due to the narrowing of the distance between the electrodes, and the overvoltage at the anode is low. The flow rate of the saline solution flowing through the water passage 55 is large, the amount of hydroxyl ions and hydrogen ions supplied to the electrode surface is large, and the flow of water in the water passage 55 is laminar. Therefore, in the present apparatus A, the electrolysis of the saline solution is promoted while suppressing the excessive generation of chlorine.
Mixing of flowing water near 9 and flowing water near cathode plate 50 is suppressed. As a result, in the present apparatus A, it is possible to generate highly acidic sterile water containing hypochlorous acid at a low concentration of about 2 ppm and having a pH of 3 or less and applicable to the human body.

In the low-concentration hypochlorous acid-containing, strongly acidic sterilizing water producing and spraying apparatus A, the distance between the electrodes between the anode plate 49 and the cathode plate 50 of the non-diaphragm type electrolysis tank 31 is reduced to thereby reduce the electric power. Through the reduction of the decomposition voltage and the power of the electrolysis power, the battery of the electrolysis power supply is realized. In the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water generating and spraying apparatus A, the anode plate 49 and the cathode plate 5 of the non-diaphragm type electrolysis tank 31 are used.
By setting the distance between 0 and 0.2 mm to about 0.2 mm to about 0.5 mm, not only the electrolysis power supply can be made into a battery, but also the pump drive power supply can be made into a battery through optimization of the water flow resistance of the water flow path 55. It was realized. Initial water, which is a liquid sprayed from the electrolysis spray unit 34 at the start of spraying, is generated in the open spray tank 62, the acidic water recovery flow path 58, and the water flow path 55. However, by setting the distance between the electrodes between the anode plate 49 and the cathode plate 50 of the diaphragmless electrolysis tank 31 to about 0.2 mm to about 0.5 mm, the volume of the water passage 55 is reduced. , The amount of initial water was suppressed. In the low-concentration hypochlorous acid-containing and strongly acidic germicidal water-producing and spraying apparatus A, the spraying apparatus 32 is constituted by the piezoelectric element 60 and the porous plate 61 having one end fixed to the piezoelectric element 60. However, the size and power consumption have been reduced. Due to the lower power consumption, a battery for the spray device drive power supply has been realized.

In the apparatus A for producing and spraying the strongly acidic sterilized water containing low-concentration hypochlorous acid, the perforated plate 61 of the spraying device 32 is made of a noble metal such as platinum, gold or silver.
Noble metal such as platinum, gold, silver, etc.
Since titanium nitride, titanium carbide or the like is plated by physical vapor deposition or chemical vapor deposition, or is coated with Teflon resin or the like, and the joint between the piezoelectric element 60 and the perforated plate 61 is coated with a resin or the like, the spray device 32 is High corrosion resistance to hypochlorous acid-containing acidic water.

In the low-concentration hypochlorous acid-containing strongly acidic sterilizing water generating and spraying apparatus A, the spraying apparatus 32 is provided with an open spray tank 62 communicating with the acidic water recovery flow path 58 of the non-diaphragm type electrolysis tank 31. The open end of the open spray tank 62 is
1, the hypochlorous acid that has flowed into the open spray tank 62 from the acidic water recovery channel 58 of the non-diaphragm type electrolysis tank 31, filled the open spray tank 62, and immersed one surface of the perforated plate 62. The contained acidic water is sprayed from the other surface of the perforated plate 62 through a number of micropores formed in the perforated plate 62.
Since the hypochlorous acid-containing acidic water supplied from one side of the perforated plate 62 is ejected from the other side of the perforated plate 62, for example, the conventional piezoelectric element disclosed in Japanese Patent Application Laid-Open No. Like a spray device consisting of a plate and
Compared to the case where the liquid supplied to one surface of the perforated plate is sprayed from the one surface, there is no possibility that the spray is partially shielded, and a good spray state can be obtained stably.

In the low-concentration hypochlorous acid-containing, strongly acidic sterilizing water producing and spraying apparatus A, the distance between the perforated plate 61 of the spraying device 32 and the bottom wall of the open spray tank 62 facing the perforated plate 61 is approximately Since the thickness is set to 0.5 mm to about 1.5 mm, the perforated plate 61 is adsorbed on the bottom wall of the open spray tank 62 due to the surface tension of hypochlorous acid-containing acidic water, and the vibration of the perforated plate 61 stops, or The situation where the vibration of the perforated plate 61 is restricted by the increase in the mass is prevented.

In the low-concentration hypochlorous acid-containing, strongly acidic sterilizing water producing and spraying apparatus A, the ratio of the amount of saline supplied to the electrolysis tank 31 to the amount of alkaline water flowing out of the electrolysis tank 31 is described. Is approximately 2 to 1 and the harness 4
Since the ratio between the cross-sectional area of the saline solution supply tube 41 and the cross-sectional area of the wastewater drainage tube 42 is 2: 1, the flow of the saline solution in the saline solution supply tube 41 and the wastewater drainage tube 42 And the flow of the alkaline water is smooth. In the low-concentration hypochlorous acid-containing strongly acidic sterilizing water generating and spraying apparatus A, the electrolysis spraying unit 34 and the harness 44 are stored in the opening of the main body 40, so that the entire apparatus is integrated, downsized, and It was transported. In the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water generating and spraying apparatus A, the grooves 4 formed in the case 45 of the electrolysis spraying unit 34 are formed.
Since the locking device constituted by 5b and the flange portion 46a formed around the opening of the case 46 is provided, it is possible to perform spraying while the electrolytic spraying unit 34 is locked to the main body 40. . As a result, it is possible to spray the germicide on the affected part without holding the electrolysis spray unit 34 in the hand. In the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water producing and spraying apparatus A, the electrolysis spraying unit 34 is used.
Provided with the hand switch 33 connected to the control device 39 of the main body 40, the user can operate the apparatus with the hand holding the electrolysis spray unit 34, and the operability of the apparatus A Improved. In the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water producing and spraying apparatus A, the DC power supply 38 is a battery-type power supply, so that the apparatus A can be used in a bathroom.

Using the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing / spraying apparatus A, four alkaline batteries (6 V) were used as a DC power source, and the pump 37 was controlled at a constant voltage of 4 V to control the electrolysis tank 31. Is supplied with a salt solution having a salt concentration of 400 ppm (mg / liter) at a flow rate of 40 to 50 cc / min.
The electrolysis tank 31 is controlled at a constant current of 0.15 A, and the spraying device 32 is controlled at a constant voltage of 12 V to control the piezoelectric element 60 by 20 to 4.
When a high frequency voltage of 5 kHz is applied, 20 to 2
At a spray rate of 5 cc / min, strongly acidic water containing hypochlorous acid at a low concentration of about 2 ppm and having a pH of 3 or less was sprayed from the electrolysis spray unit 34.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. In the non-diaphragm-type electrolysis tank 31 of the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing / spraying apparatus A, as shown in FIG. Cover 4
As shown in FIG. 9, the acidic water recovery flow path 58 is connected to the downstream end of the water flow path 55, and the alkaline water recovery flow path 57 is connected to the downstream end of the water flow path 55. The case 47 may be formed adjacent to the downstream end of the plate 50. In the non-diaphragm-type electrolysis tank 31 of the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing / spraying apparatus A, the smooth surface 48a is slightly separated from the anode plate 49 in the direction away from the cathode plate 50 as shown in FIG. It may be offset. Since the alkaline water near the cathode plate 50 flows along the cathode 50, the acidic water near the anode plate 49 flows into the acidic water recovery channel 58. As shown in FIG. 11, the vicinity of the downstream end of the water flow passage 55 is formed such that the flat surface 48 a of the cover 48 extending flush with the anode plate 49 and the cathode plate 5 in a direction away from the anode plate 49.
Smooth surface 47 of case 47 slightly offset from 0
a. Since the alkaline water near the cathode plate 50 flows along the cathode 50 and the smooth surface 47a, the acidic water near the anode plate 49 flows into the acidic water recovery channel 58.

In the apparatus A for producing and spraying the strongly acidic sterilized water containing low concentration hypochlorous acid, a compressor may be connected to the saline solution tank 35 instead of the pump 37. In this case,
The saline solution pressurized by the operation of the compressor is pumped to the non-diaphragm type electrolysis tank 31. In this case, an on-off valve controlled by the control device 39 or an on-off valve controlled manually is provided downstream of the saline solution tank 35 so as to be transferred to the non-diaphragm type electrolysis tank 31. It is desirable to supply and stop supplying the saline solution. By disposing the on-off valve, the supply of the saline solution to the non-diaphragm type electrolysis tank 31 and the stop of the supply are performed without any trouble. When a manually controlled on-off valve is provided, the apparatus A may be started and stopped by the on-off valve. In the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water producing and spraying apparatus A, the harness 44 may be eliminated and the non-diaphragm type electrolysis tank 31 and the spraying apparatus 32 may be installed in the main body 40. In this case, spraying is performed by directing the acidic mist outlet communicating with the opening 59a of the spraying device 32 installed in the main body 40 toward the affected part.

[0037]

According to the present invention, the anode plate and the cathode plate of the non-diaphragm type electrolysis tank face each other without the interposition of the diaphragm in the low-concentration hypochlorous acid-containing and strongly acidic sterilizing water producing and spraying apparatus according to the present invention. Compared with a conventional apparatus for producing hypochlorous acid-containing acidic water using a diaphragm-type electrolysis tank, the distance between the electrodes is narrowed to reduce the electric resistance of the saline solution existing between the electrodes, and the saline solution can be produced with less power. Can be electrolyzed. As a result, the size of the non-diaphragm type electrolysis tank due to the narrowing of the distance between the electrodes, and the downsizing of the DC power supply and control device due to power saving,
The spray apparatus for generating and sterilizing low-concentration hypochlorous acid-containing strongly acidic sterilized water according to the present invention can be made compact and portable as a whole. By making the entire apparatus compact and portable, a user can easily carry the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing and spraying apparatus to an arbitrary place for use. Therefore, this device has high usability. In addition, in this apparatus, by reducing the size of the non-diaphragm-type electrolysis tank, the mode of use can be reduced by producing a low-concentration hypochlorous acid-containing strongly acidic sterilized water by an amount corresponding to the necessity. The chloric acid-containing strongly acidic sterilized water can be used up on the spot. In this case, the generated low-concentration hypochlorous acid-containing strongly acidic germicidal water is immediately used, so that the sterilizing power of the low-concentration hypochlorous acid-containing strong-acid germicidal water to be used is guaranteed.

[0038] In the spray device for producing a highly concentrated sterile water containing hypochlorous acid containing low concentration of hypochlorous acid according to the present invention, the voltage applied between the electrodes is reduced to reduce the overvoltage at the anode by narrowing the distance between the electrodes. In addition, the flow rate of the saline solution flowing in the water flow passage between the electrodes can be increased to increase the amount of hydroxyl ions and hydrogen ions supplied to the electrode surface. Can be made into a laminar flow. Therefore, in the present hypochlorous acid-containing acidic water generating and spraying apparatus, electrolysis of saline can be promoted while suppressing excessive generation of chlorine, and mixing of flowing water near the anode with flowing water near the cathode can be suppressed. Accordingly, it is possible to produce a highly acidic sterile water containing hypochlorous acid at a low concentration of about 2 ppm and having a pH of 3 or less and applicable to the human body.

In the spray apparatus for producing a strongly acidic sterilized water containing low-concentration hypochlorous acid, the distance between the electrodes between the anode plate and the cathode plate of the non-diaphragm-type electrolysis tank is reduced to reduce the electrolysis voltage. It is possible to realize a battery for the electrolysis power supply through voltage reduction and reduction in electrolysis power. By connecting the acidic water discharge port to the spray device, it is possible to spray the strongly acidic sterilizing water. By spraying the sterilized water, the sterilized water can be applied to the inflamed portion without excess or shortage. By forming the spraying device with the piezoelectric element and the porous plate having one end fixed to the piezoelectric element, it is possible to reduce the size of the spraying device, reduce the power consumption, and use a battery for the driving power supply.

By coating the entire surface of the perforated plate including the inner surfaces of the holes with an acid-resistant material, the perforated plate can be improved in corrosion resistance to low-concentration hypochlorous acid-containing strongly acidic sterilizing water.

The spray device is provided with an open spray tank communicating with the acidic water recovery flow path of the diaphragmless electrolysis tank, and the open end of the open spray tank is covered with a perforated plate, whereby the acidic water of the diaphragmless electrolysis tank is covered. The low concentration hypochlorous acid-containing strongly acidic sterilized water that flows into the open spray tank from the recovery channel, fills the open spray tank, and immerses one surface of the perforated plate passes through the many micropores formed in the perforated plate. Through the other side of the perforated plate. Since the low-concentration hypochlorous acid-containing strongly acidic sterilized water supplied from one surface of the perforated plate is jetted from the other surface of the perforated plate, a stable and good spray state can be obtained.

When the distance between the perforated plate and the bottom wall of the open spray tank facing the perforated plate is about 0.5 mm to about 1.5 mm, the surface of the low-concentration hypochlorous acid-containing strongly acidic sterilized water can be reduced. It is possible to prevent the perforated plate from being adsorbed to the bottom wall of the open spray tank by the tension and stopping the vibration of the perforated plate, or preventing the vibration of the perforated plate from being restricted by an increase in the added water mass.

[Brief description of the drawings]

FIG. 1 is a device configuration diagram of an apparatus for generating and spraying a strongly acidic sterilized water containing low concentration hypochlorous acid according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an entire configuration of a low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing and spraying apparatus according to an embodiment of the present invention.

FIG. 3 is a perspective view of an apparatus for generating and spraying a low-concentration hypochlorous acid-containing strongly acidic sterilizing water according to an embodiment of the present invention. (A) is a perspective view showing a state in which an electrolysis spray unit is stored in a main body, and (b) is an electrolysis spray of a low concentration hypochlorous acid-containing strongly acidic sterilized water producing and spraying apparatus according to an embodiment of the present invention. It is a perspective view which shows the state which took out the unit from the main body, (c)
FIG. 2 is a perspective view showing a state in which an electrolysis spray unit of the low-concentration hypochlorous acid-containing strongly acidic sterilizing water producing and spraying apparatus according to the embodiment of the present invention is locked to a main body.

FIG. 4 is a structural view of an electrolysis spray unit provided in the spray apparatus for generating and sterilizing low concentration hypochlorous acid-containing strongly acidic sterilized water according to an embodiment of the present invention. (A) is sectional drawing, (b) is bb arrow view of (a).

FIG. 5 is a perspective view of an electrolysis tank included in the electrolysis spray unit of FIG.

6 is a perspective view in which an electrolysis tank of the electrolysis spray unit of FIG. 4 is divided into an anode side and a cathode side.

FIG. 7 is a cross-sectional view of a harness provided in the spray device for generating and spraying a low-concentration hypochlorous acid-containing strongly acidic sterilizing water according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view illustrating a modification of the electrolysis tank and corresponding to FIG. 4A.

FIG. 9 is a cross-sectional view corresponding to FIG. 4A showing a modification of the electrolysis tank.

FIG. 10 is a sectional view corresponding to FIG. 4A showing a modification of the electrolysis tank.

FIG. 11 is a cross-sectional view illustrating a modification of the electrolysis tank and corresponding to FIG. 4A.

[Explanation of symbols]

 A Low concentration hypochlorous acid-containing strong acid sterilizing water generating and spraying device 31 Non-diaphragm type electrolysis tank 32 Spraying device 33 Hand switch 34 Electrolytic spraying unit 35 Salt water tank 36 Waste water recovery tank 37 Pump 38 DC power supply 39 Control Apparatus 40 Main body 44 Harness 60 Piezoelectric element 61 Perforated plate

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Toshio Ekima 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi Inside East Ceramics Co., Ltd. (72) Inventor Akemi Takeshita 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi No. Tohoku Kiki Co., Ltd. (72) Hidemine Miyahara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City Inside Higashi Toki Kiki Co., Ltd. (72) Shigeru Ando 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi No. East Ceramics Co., Ltd.

Claims (5)

[Claims] 1. A non-diaphragm type electrolysis tank, a saline solution tank, a waste water recovery tank, a pressure feeding means for feeding a saline solution from the saline solution tank to the non-diaphragm type electrolysis tank, a spraying device,
A non-diaphragm-type electrolysis tank comprising a DC power supply device and a control device, wherein the non-diaphragm-type electrolysis tank has a water flow passage formed by a pair of smooth wall surfaces which approach each other and are parallel to each other without passing through a diaphragm; An anode plate forming at least a part of one of the above, a cathode plate forming at least a part of the other of the pair of wall surfaces, and an anode plate was formed on a wall surface forming a part in a downstream region of the water flow passage. It has an acidic water recovery flow path that communicates with the water flow path through the opening, an alkaline water recovery flow path that communicates with the downstream end of the water flow path, and a saline solution supply flow path that communicates with the upstream end of the water flow path. The saline supply flow path communicates with the saline solution tank, the alkaline water recovery flow path communicates with the waste water recovery tank, the acidic water recovery flow path communicates with the acidic water discharge port, and the acidic water discharge port communicates with the spray device. The spray device is connected to the piezoelectric element and one end to the piezoelectric element. Wear has been perforated plate and a low-concentration hypochlorous acid-containing strong acid sterilizing water generating and spraying device, characterized in that it comprises a. 2. A non-diaphragm type electrolysis tank, a saline solution tank, a waste water recovery tank, a pressurizing means for feeding a saline solution from the saline solution tank to the non-diaphragm type electrolysis tank, a spraying device,
A non-diaphragm-type electrolysis tank comprising a DC power supply device and a control device, wherein the non-diaphragm-type electrolysis tank has a water flow passage formed by a pair of smooth wall surfaces which approach each other and are parallel to each other without passing through a diaphragm; An anode plate forming at least a part of one of the above, a cathode plate forming at least a part of the other of the pair of wall surfaces, an acidic water recovery flow path communicating with a downstream end of the water flow path, and a water flow path. In the downstream area, the cathode plate has an alkaline water recovery flow path communicating with the water flow path through an opening formed in a wall partly forming a part thereof, and a saline solution supply flow path communicating with the upstream end of the water flow path. The salt water supply flow path communicates with the saline solution tank, the acidic water recovery flow path communicates with the acidic water discharge port, the acidic water discharge port is connected with the spray device, and the alkaline water recovery flow path is a waste water recovery tank. The spraying device has a piezoelectric element and one end connected to the piezoelectric element. Wear has been perforated plate and a low-concentration hypochlorous acid-containing strong acid sterilizing water generating and spraying device, characterized in that it comprises a. 3. The method of claim 1, wherein the entire surface of the perforated plate including the inner surface of the holes is coated with an acid-resistant material. Spray device. 4. The spraying device has an open spray tank communicating with the acidic water recovery flow path of the diaphragmless electrolysis tank, and the open end of the open spray tank is covered with a perforated plate. The spray device for producing a strongly acidic sterilized water containing low-concentration hypochlorous acid according to any one of claims 1 to 3. 5. The distance between the perforated plate and the bottom wall of the open spray tank facing the perforated plate is about 0.5 mm to about 1.5 mm.
The spray device for producing a low-concentration hypochlorous acid-containing strongly acidic sterilized water according to claim 4, wherein