JPH0994579A - Steritizing washing solution making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate wasteful water while making necessary electrolytic water by providing a pair of electrode plates provided so that the main surfaces of them are opposed to each other and a diaphragm provided so as to surround one electrode plate. SOLUTION: This sterilizing washing son. making apparatus 200 has a making unit 100 and a making container 1 and the making unit 100 has a pair of electrode plates 2, 3 of which the main surfaces are opposed to each other and a diaphragm 4 provided so as to surround only one electrode plate 3, and a chamber partitioned by the bag-shaped diaphragm 4 and having the electrode plate 3 immersed therein becomes an electrolytic water making chamber 6 and the interior of the making container 1 becomes another electrolytic water making chamber 5. Since the vol. of the making chamber 6 is markedly smaller than that of another making chamber 5, this apparatus is fitted to a case making either one of alkaline electrolytic water and acidic electrolytic water. Therefore, only necessary electrolytic water can be mainly made and unnecessary electrolytic water becomes markedly little and, therefore, water saving effect is excellent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing cleaning liquid generating unit, a sterilizing cleaning liquid generating device and a sterilizing cleaning liquid generating method, which are preferably used in a washing machine, a medical washing machine, a dishwasher, etc. The present invention relates to a sterilization cleaning liquid generation unit, a sterilization cleaning liquid generation device, and a sterilization cleaning liquid generation method capable of eliminating waste water when generating the sterilization cleaning liquid.

[0002]

2. Description of the Related Art Textile products, tableware, medical equipment, etc. have been conventionally sterilized and washed with chemicals and cleaning agents, but in order to solve problems such as damage to an object to be washed and waste water treatment, It has been proposed by the applicant of the present application to use electrolyzed water as the cleaning liquid. This is to more effectively sterilize and wash an object to be washed by utilizing the protein removing action of alkaline electrolyzed water obtained by electrolyzing water and the sterilizing action of acidic electrolyzed water obtained at the same time.

[0003]

However, in the conventional method for producing electrolyzed water, since almost the same amount of alkaline electrolyzed water and acid electrolyzed water are produced simultaneously, for example, when washing with alkaline electrolyzed water is performed. It was necessary to discard excess acidic electrolyzed water. In addition, even if the cleaning is performed by the cycle of alkaline electrolyzed water, which is the most effective sterilization cleaning method for the object to be cleaned, cleaning with acidic electrolyzed water, and cleaning with alkaline electrolyzed water, the acidic electrolyzed water is wasted water. I was forced to discard this.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to produce the required electrolyzed water and to eliminate waste water.

[0005]

In order to achieve the above object, the sterilizing and cleaning liquid generating unit of the present invention comprises at least a pair of electrode plates provided with their main surfaces facing each other.
A diaphragm provided so as to surround the one electrode plate.

The sterilizing / cleaning liquid generating unit further includes a power source for applying a DC voltage to the pair of electrode plates and a polarity reversing circuit for reversing the polarity of the DC voltage.

Further, in order to achieve the above object, the sterilizing cleaning liquid generating apparatus of the present invention is characterized by including a generating container into which the stock solution is charged and a sterilizing cleaning liquid generating unit.

When a voltage is applied between a pair of electrode plates and a direct current is applied to the stock solution put in the production container, the stock solution is electrolyzed, acidic electrolyzed water is produced on the anode side, and the cathode side is produced. Produces alkaline electrolyzed water. Particularly, in the present invention, since the diaphragm is provided so as to surround one of the electrode plates, the space surrounded by this diaphragm becomes one of the electrolysis chambers, and the inside of the production container outside the diaphragm is the other electrolysis chamber. Become a room. Therefore, when it is desired to obtain mainly alkaline electrolyzed water, by using the electrode plate surrounded by the diaphragm as the anode and the other electrode plate as the cathode, almost all of the undiluted solution put in the production container is alkaline electrolyzed water. Therefore, the amount of the acidic electrolyzed water on the other side can be minimized. Conversely, if you want to obtain mainly acidic electrolyzed water, use the electrode plate surrounded by the diaphragm as the cathode and the other electrode plate as the anode, so that almost all of the stock solution put into the production vessel is acid electrolyzed. It becomes water, and the amount of waste of the other alkaline electrolyzed water can be minimized.

More preferably, the apparatus for producing a sterilizing cleaning liquid of the present invention is added to a washing machine, a medical equipment cleaning machine, a dishwashing machine or the like. Above all, it is more preferable to add the apparatus for producing a sterilizing cleaning liquid of the present invention to a drum type washing machine excellent in water saving effect.

Further, the apparatus for producing a sterilizing cleaning liquid of the present invention is
This is effective when performing alkaline washing and acid washing by utilizing the protein removing action of alkaline electrolyzed water and the bleaching sterilization action of acidic electrolyzed water. For example, if cleaning is performed in a cycle of alkali cleaning → acid cleaning → alkali cleaning, the protein component attached to the object to be cleaned can be removed by the action of alkaline electrolyzed water in the first alkali cleaning step, and the next acid cleaning is performed. In the process, due to the action of active oxygen and chlorine contained in acidic electrolyzed water, not only the scale components such as calcium and sodium adhering to the object to be washed can be eluted and bleached into the electrolyzed water, but also toxins can be removed. Can kill or kill bacteria. In the final alkaline cleaning step, the object to be cleaned, which has been soaked in the acidic electrolyzed water, approaches neutrality, so that the stain components are more easily eluted and the dough can be prevented from being damaged. When cleaning is performed in such a cycle of alkali cleaning and acid cleaning, alkaline electrolyzed water and acidic electrolyzed water are separately required, and thus the electrolyzed water that is unnecessary in the conventional production method must be discarded. However, according to the present invention, the amount of electrolyzed water that becomes unnecessary is extremely small, and thus the water saving effect is excellent.

The undiluted solution used in the present invention is
Although not particularly limited, tap water, reverse osmosis water, pure water, and tap water treated with soft water can be mentioned. Further, in order to improve the electrolysis efficiency, a substance having a large dissociation degree such as sodium chloride, potassium chloride, or calcium chloride may be added thereto.

In order to achieve the above-mentioned object, the method for producing a sterilizing cleaning liquid of the present invention comprises a step of filling a stock solution into a pair of production chambers partitioned by a diaphragm into substantially the same volume, and a step of providing the pair of production chambers with the stock solution. A step of applying a direct current voltage to the pair of electrodes, a step of discharging the sterilizing cleaning solution generated in the one production chamber, a step of filling the one production chamber with the stock solution, and a polarity of the pair of electrodes. A step of applying an inverted DC voltage, a step of discharging the sterilization cleaning liquid generated in the one generation chamber, and a step of discharging the sterilization cleaning liquid generated in the other generation chamber To do.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a schematic diagram showing an apparatus for producing a sterilization cleaning liquid according to an embodiment of the present invention, and FIG. 2 is a process diagram showing a sterilization cleaning method according to an embodiment of the present invention.

As shown in FIG. 1, an apparatus 200 for producing a sterilizing cleaning liquid according to the present embodiment includes a producing unit 100,
It has the production container 1. The production container 1 is made of, for example, a non-conductor such as plastic, and a discharge pipe 9 having a valve 10 is attached to the bottom thereof. The produced liquid discharged from the discharge pipe 9 is supplied to various washing machines 11 such as a washing machine, a medical equipment washer, and a dishwasher.

On the other hand, the production unit 100 has a pair of electrode plates 2 and 3 whose main surfaces face each other and a diaphragm 4 which surrounds only one electrode plate 3. There is. The diaphragm 4 surrounding the electrode plate 3 is formed in a bag shape, for example, and one of the electrode plates 3 is inserted inside.

The electrode plates 2 and 3 are connected so that a DC power source 7 obtained by rectifying an AC power source with a rectifier is applied to the electrode plates 2 and 3, and a DC power source that is supplied to the two electrode plates 2 and 3. Polarity inversion circuit 8 for inverting the polarity of 7
Is connected.

As a result, the electrode plate to which the anode terminal of the DC power supply 7 is connected becomes the anode plate, and the electrode plate to which the cathode terminal of the DC power supply 7 is connected becomes the cathode plate. In FIG. 1, the chamber partitioned by the bag-shaped diaphragm 4 and in which the anode plate 3 is immersed becomes the acidic electrolyzed water generation chamber 6, and the inside of the other generation container 1 becomes the alkaline electrolyzed water generation chamber 5.

In the sterilizing / cleaning liquid producing apparatus 200 of the present embodiment having the above-mentioned configuration, the volume of one producing chamber 6 is significantly smaller than the volume of the other producing chamber 5, so that
It is suitable when only one of alkaline electrolyzed water or acidic electrolyzed water is produced. Then, in the cycle of alkaline cleaning → acid cleaning → alkali cleaning shown in FIG. 2, when washing an object to be washed such as clothes by utilizing the protein removing action of alkaline electrolyzed water and the bleaching sterilization action of acidic electrolyzed water Is especially effective for. When performing such cleaning, alkaline electrolyzed water and acidic electrolyzed water are separately required, and thus electrolysis water that is unnecessary in the conventional production method has to be discarded, but according to the present invention. For example, only the required electrolyzed water can be mainly produced, and the unnecessary electrolyzed water is remarkably small in amount, so that the water saving effect is excellent.

When alkaline electrolyzed water is produced using the sterilizing cleaning liquid producing apparatus 200 of the present embodiment, it is more preferable to apply a low voltage to allow a large current to flow. This is because the electrode plate is composed of platinum (or platinum coating), and chlorine base salt (eg NaCl) is added to the stock solution.
Is achieved by adding This is for the following reason. That is, when a voltage is applied to the pair of electrode plates 2 and 3, the cathode and the anode, respectively, The following reaction occurs. Here, the current flowing through the cathode is I ⁻ ,
Assuming that the current flowing through the anode is I ⁺ , I ⁻ = I (H ₂ ), I ⁺ = I (O ₂ ) + I (Cl ₂ ), and since I ⁻ = I ⁺ holds, I (H ₂ ) = It is I (O ₂ ) + I (Cl ₂ ). Therefore, when the discharge voltage (current density) is increased, I (Cl ₂ ) that was initially 0 increases, so that the relationship of I (H ₂ )> I (O ₂ ) is established, and the ion concentration generated is , [OH ⁻ ]> [H ⁺ ], which is suitable for generating alkaline electrolyzed water.

When acidic electrolyzed water is produced using the sterilizing cleaning liquid producing apparatus 200 of the present embodiment,
It is more preferable to increase the distance between the electrode plates. Since about two times greater than the moving speed of the H ⁺ ions OH ^{- -} conductivity of the H ⁺ is OH about 2 times faster than the ions. Therefore, when acidic electrolyzed water is generated, the rate of generation of acidic electrolyzed water becomes faster when the distance between the electrode plates is increased.

(Embodiment 2) Various means other than the above-described invention can be considered as means for preventing waste water when electrolyzed water is generated. 3 (A)-(C) and FIG. 4 (D)-
(F) is a schematic diagram showing a method for producing a sterilizing cleaning liquid according to another embodiment of the present invention.

In the present embodiment, the diaphragm 4 is provided at substantially the center of the production container 1 into which the stock solution is put, and the production chambers 5 and 6 having substantially the same volume are formed. Each generation chamber 5,
Electrode plates 2 and 3 are arranged at 6 so that their main surfaces face each other, and a DC power supply 7 is connected to the electrode plates. Even in the case of performing the cleaning of alkali cleaning → acid cleaning → alkali cleaning shown in FIG. 2 using such a sterilizing cleaning liquid generator, waste water can be prevented by the following method.

That is, as shown in FIG. 3 (A), after both stock chambers 5 and 6 are filled with the stock solution, the cathode is placed on the electrode plate 2.
An anode is connected to each of the electrode plates 3 and a DC voltage is applied. As a result, alkaline electrolyzed water is produced in the production chamber 5, and acidic electrolyzed water is produced in the production chamber 6.

Next, as shown in FIG. 3B, the alkaline electrolyzed water generated in the generation chamber 5 is supplied to the washing machine 11 such as a washing machine. At this time, the acidic electrolyzed water generated in the generation chamber 6 is left as it is.

Then, as shown in FIG.
The production chamber 5 that was emptied in (B) was filled with the stock solution, and
As shown in (D), the polarity of the voltage applied to the electrode plates 2 and 3 is reversed and electrolysis is performed. As a result, acidic electrolyzed water is produced in the production chamber 5, and alkaline electrolyzed water is produced in the production chamber 6.

Next, as shown in FIG. 4 (E), the generation chamber 5
The acidic electrolyzed water generated in step 2 is supplied to the washing machine 11 to perform the acid washing shown in FIG. Finally, as shown in FIG.
The alkaline electrolyzed water generated in the generation chamber 6 is supplied to the cleaning machine 11, and the second alkaline cleaning shown in FIG. 2 is performed.

According to such a method, it is possible to prevent waste water even in the case of carrying out the cleaning of alkali cleaning → acid cleaning → alkali cleaning shown in FIG.

The embodiments described above are described for the purpose of facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

[0029]

As described above, according to the present invention, since the diaphragm is provided so as to surround one electrode plate,
The space surrounded by this diaphragm becomes one electrolysis chamber, and the inside of the production container outside the diaphragm becomes the other electrolysis chamber. Therefore, when it is desired to obtain mainly alkaline electrolyzed water, by using the electrode plate surrounded by the diaphragm as the anode and the other electrode plate as the cathode, almost all of the undiluted solution put in the production container is alkaline electrolyzed water. Therefore, the amount of the acidic electrolyzed water on the other side can be minimized. Conversely, if you want to obtain mainly acidic electrolyzed water, use the electrode plate surrounded by the diaphragm as the cathode and the other electrode plate as the anode, so that almost all of the stock solution put into the production vessel is acid electrolyzed. Becomes water,
On the other hand, the amount of alkaline electrolyzed water to be discarded can be minimized.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an apparatus for producing a sterilizing cleaning liquid according to an embodiment of the present invention.

FIG. 2 is a process drawing showing the sterilization cleaning method in the embodiment of the present invention.

3A to 3C are schematic views showing a method for producing a sterilizing cleaning liquid according to another embodiment of the present invention.

4 (D) to (F) are schematic views showing a method for producing a sterilizing cleaning liquid according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Generation container 2, 3 ... Electrode plate 4 ... Diaphragm 5, 6 ... Generation chamber 7 ... DC power supply 8 ... Polarity reversal circuit 9 ... Discharge pipe 11 ... Washing machine 100 ... Sterilization cleaning liquid generation unit 200 ... Sterilization cleaning liquid generation device

Claims (7)

[Claims] 1. A unit for producing a sterilizing cleaning liquid, comprising at least a pair of electrode plates provided with their main surfaces facing each other, and a diaphragm provided so as to surround the one electrode plate. . 2. The unit for producing a sterilizing cleaning liquid according to claim 1, further comprising a power supply for applying a DC voltage to the pair of electrode plates, and a polarity reversing circuit for reversing the polarity of the DC voltage. . 3. A production container into which the stock solution is charged, and
Or a sterilizing cleaning liquid generating unit according to item 2. 4. A washing machine comprising the sterilizing cleaning liquid generating device according to claim 3. 5. A medical device cleaning machine, comprising the sterilizing cleaning liquid generating device according to claim 3. 6. A dishwasher comprising the apparatus for producing a sterilizing cleaning liquid according to claim 3. 7. A step of filling the pair of production chambers partitioned by a diaphragm with substantially the same volume as the stock solution, a step of applying a DC voltage to a pair of electrodes provided in the pair of production chambers, and the production of the one Discharging the sterilizing cleaning liquid generated in the chamber, a step of filling the one generation chamber with the stock solution, a step of applying a DC voltage with the polarity reversed to the pair of electrodes,
A method for producing a sterilization cleaning liquid, comprising: a step of discharging the sterilization cleaning liquid generated in the one generation chamber, and a step of discharging the sterilization cleaning liquid generated in the other generation chamber.