JPH09294987A - Sterilizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out the sterilization of water to be treated with high efficiency by forming electrode units composed of a plurality of wire-shaped electrodes provided at the required intervals in a device in which sterilization is carried out by applying voltage among the electrodes and electrolysing a liquid to be polluted with time. SOLUTION: A device main body is constituted of a circulating pump by pumping up and circulating water to be treated such as bath water stored in a bathtub and an electrolytic cell 14 for sterilizing the water to be treated thus fed, and the electrolytic cell 14 is composed of a tank case 24 and an electrode units 26. The electrode units 26 are composed of a plurality of wire- shaped electrodes 28 provided in tension at the required intervals and fixed plates 30 supporting and fixing the electrodes 28 on both ends, and the electrodes 28 are roughly divided into two electorde units, and the polarity of current voltage to be applied to the electrodes is selected to funcion one unit as an anode and the other as a cathode. The electrodes 28 are provided in the direction vertical to the flowing direction of the water to be treated thus fed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sterilizing contaminated liquid, and more specifically, a liquid contaminated or segregated with time, such as bath water in a bathtub or water in a pool. The present invention relates to household and commercial sterilizers for sterilization by electrolyzing drinking water that is contaminated over time.

[0002]

2. Description of the Related Art For example, bath water stored in a bathtub is contaminated with organic substances such as dirt and hair, dust, sand, etc., and is contaminated with the passage of time, resulting in turbidity, odor and slime. It causes the comfort when taking a bath. This point is similar to the situation in the pool as well, and with use, the pooled water in the pool is contaminated over time, impairing comfort during swimming and becoming unsanitary. Also, when storing drinking water, the efficacy of components having a bactericidal action such as hypochlorous acid will disappear with storage time,
Deterioration due to pollution over time.

In any case, it is preferable that the stored water be replaced every time it is used, since it can be used without causing the above-mentioned problems, but the cost of using tap water and the cost of boiling it in hot water (for example, , In the case of a warm water pool), it takes a lot of time to exchange water, and there are various drawbacks such as not being able to enjoy bathing and swimming at any time and being able to drink together.

In order to solve such problems, a sterilizer based on the photocatalytic effect of photocatalyst or ultraviolet rays and a sterilizer based on electrolysis of a liquid to be treated passing between electrodes are known. Among these, the latter electrolysis sterilizer is equipped with an electrolytic cell composed of a pair of parallel plate electrodes or concentric cylindrical electrodes arranged at required intervals, and a liquid to be treated is passed between the pair of electrodes. However, by applying a predetermined voltage with one electrode as an anode and the other electrode as a cathode, the liquid to be treated can be electrolyzed and the microorganisms adhering to the surface of the anode can be oxidatively decomposed (killed).

Further, when the liquid to be treated is electrolyzed, oxygen gas is generated on the anode side, and the concentration of hydrogen ions in the liquid to be treated existing around the oxygen gas becomes high to become acidic. On the one cathode side, hydrogen gas is generated, and the concentration of hydrogen ions in the liquid to be treated present around the hydrogen gas becomes low, and the gas becomes alkaline. Particularly, since the vicinity of the anode becomes strongly acidic and the vicinity of the cathode becomes strongly alkaline, the bactericidal effect is exhibited even by such a change in the hydrogen ion concentration.
Furthermore, on the anode side, along with the generation of oxygen gas, active oxygen is generated in the form of ozone (O ₃ ) or hydrogen peroxide solution (H ₂ O ₂ ). If the liquid to be treated contains a chlorine component, a chlorine compound such as hypochlorous acid having a very strong bactericidal action is generated. These products also sterilize the microorganisms in the liquid to be treated.

[0006]

By the way, the stored water stored in a bathtub, a pool, or an appropriate container is generally in a very clean state because tap water having a bactericidal action is stored at the start of the storage. However, the chlorine component that exhibits this bactericidal action is released at a relatively early stage, resulting in water having no bactericidal activity. It can be said that the environment is such that unnecessary microorganisms can easily propagate in the storage tank.

On the other hand, when performing sterilization by electrolysis, in order to obtain an effective sterilizing effect, 0.1 to 1 A is required.
It is necessary to cause an electrolysis reaction by an electrolytic current of about (ampere). Generally, the electric conductivity of the water to be treated is low and it is difficult to conduct electricity. Here, when the distance between the electrodes of the pair of electrodes forming the electrolytic cell is wide, there is an advantage that the water to be treated easily flows between the electrodes and the flow path resistance is lowered, but in order to exert an effective sterilizing effect. Must increase the applied voltage between the electrodes, which increases the load on the power source for electrolysis and may cause electric leakage or electric shock. on the other hand,
Considering that the sterilizing effect of the electrolysis of the water to be treated is caused by the chemical reaction and the change in pH in the vicinity of the electrodes forming the electrolytic cell, it is effective to reduce the distance between the electrodes for efficient sterilizing treatment. . As a result, the applied voltage can be set low, the load on the power supply can be reduced, and there is no fear of electrical leakage or electric shock, which improves safety, but conversely, it becomes difficult for the water to be treated to flow between the electrodes and the flow path resistance is high. turn into. Actually, the electrolytic cell that constitutes the sterilizer by electrolysis is actually a compromise design with respect to the flow path resistance and the power source load as described above.

Therefore, according to the present invention, the flow resistance is light, the load on the power source for electrolysis is small, and the water to be treated flowing between the electrodes and the electrode for electrolysis are easily contacted with each other. It is an object of the present invention to provide a sterilization device equipped with an electrolytic cell that can perform sterilization treatment with high efficiency.

[0009]

A sterilizer according to claim 1, which has been made to achieve the above object, sterilizes a liquid contaminated with time by electrolyzing by applying a voltage between electrodes. In the sterilizing apparatus configured to perform the above, the electrode is composed of a plurality of wire-shaped electrodes arranged with a required interval.

As described above, in the sterilizer of the present invention, the water to be treated can be electrolyzed by the plurality of wire-shaped electrodes, so that the electrolytic cell as a whole has a wide opening even if the distance between the electrodes is narrowed. As a result, the water to be treated supplied to the electrolyzer passes without receiving a large flow resistance.
Even when electrolyzing the water to be treated that is actually flowing by applying a voltage between the electrodes, the distance between the electrodes is narrow, so it can be applied between the electrodes even when an electrolytic current is passed to the extent that an effective sterilizing effect can be obtained. The voltage can be lowered and the load on the power source for electrolysis is reduced. As a result, the cost and weight of the device itself can be reduced, and since it is driven at a low voltage, there is no risk of electric leakage or electric shock, and safety is high. Furthermore, since a plurality of electrodes are arranged in the electrolytic cell, it becomes easy to contact the water to be treated with the electrodes for electrolysis, and efficient sterilization can be performed.

Further, in the sterilizer according to the second aspect, the material of the wire electrode is a noble metal.

As described above, when the electrode material forming the electrolytic cell is a noble metal, the deterioration and consumption of the electrode material due to the oxidation-reduction reaction on the electrode surface during the electrolysis of the water to be treated is extremely small, and the electrolytic cell The life can be extended.
When electrolysis is started by applying a predetermined voltage, an oxidation reaction of water occurs in the anode, oxygen gas is generated, and the hydrogen ion concentration becomes high and becomes acidic in the vicinity of the electrode. When the oxidation potential of the electrode material forming the electrolytic cell is lower than the oxygen generation potential at this time, the oxidation reaction of the material progresses, resulting in deterioration or consumption of the material. That is, the life of the electrode becomes short. On the other hand, if the oxidation potential of the electrode material is higher than the oxygen generation potential, the oxidation reaction of water (generation of oxygen gas) will proceed preferentially and the electrode material will not be deteriorated or consumed. In general usage,
Noble metals, more specifically, gold, silver, and platinum group metals or alloys thereof are materials that satisfy this condition. By using noble metals as the electrode material, stable electrolysis of the water to be treated and longer life of the device can be achieved. .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a sterilizing apparatus of the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

FIG. 1 shows a schematic structure of the sterilization apparatus of this embodiment. This apparatus sterilizes the water to be treated, which is stored in the storage tank 10 and is contaminated over time, while circulating the pump water outside the storage tank 10.

The present apparatus comprises an apparatus body 16 composed of a circulation pump 12 for pumping and circulating the water to be treated from a storage tank 10 and an electrolytic tank 14 for electrolyzing the supplied water to be sterilized. The water to be treated that has been sterilized inside the apparatus body 16 and the suction port 18 that is installed below the general storage position of the water to be treated and draws the water to be treated from the storage tank 10 is returned to the storage tank 10. A discharge hose 22 which is connected to the discharge port 20 and the suction port 18 and supplies the treated water to the apparatus main body 18, and a drainage for recirculating the sterilized treated water which is connected to the discharge port 20 to the storage tank 10 again. And a hose 24. The suction port 18
The water supply hose 22 connected to the electrolysis tank 14 for electrolyzing the water to be treated supplied via the circulation pump 12.
The outlet side of the electrolytic cell 14 is connected to the discharge port 20 through the drain hose 24 to form a series of circulation flow paths. A flow rate sensor 40 for detecting the flow rate of the water to be treated is inserted in the flow path through which the water to be treated after the sterilization treatment returns to the storage tank 10 and is connected to a control circuit so that various types of the apparatus main body 16 can be obtained. It outputs an information signal necessary for control.

Here, as shown in FIG. 2, the electrolytic cell 14 for electrolyzing and sterilizing the water to be treated has a rectangular vessel case 24 as a whole, and a group fixed and stored in the vessel case 24. It is composed of an electrode portion 26. Of these, as shown in FIG. 3, the assembled electrode portion 26 includes a plurality of wire-shaped electrodes 28 that are stretched in parallel with each other at required intervals.
It is composed of fixing plates 30a and 30b for supporting and fixing the wire electrode 28 at both ends thereof.

The fixing plates 30a and 30b are arranged opposite to each other. The wire-shaped electrode 28 can be roughly divided into two groups of electrodes, and one of them can be used as an anode 28 by selecting the polarity of the DC voltage applied to them.
a and the other function as the cathode 28b. The material of the wire electrode 28 is a platinum wire,
Silver wire, gold wire or alloy wire of these, and titanium (T
A wire made of i) or copper (Cu) coated with platinum, silver, gold or the like is preferably used. In the present embodiment, platinum-coated wires using a titanium wire as a base material are used for both the anode 28a and the cathode 28b.

The wire electrode 28 is used as the circulation pump 1.
It is characterized in that it is arranged in a direction perpendicular to the direction of the flow of the water to be treated supplied by 2. In addition, before and after the installation position of the assembled electrode portion 26, no particularly large member is arranged and it is an empty area. Therefore, the flow velocity of the water to be treated which has flowed into the electrolytic cell 14 is temporarily slowed down so that the electrodes 28a and 28b can be effectively contacted with each other and the sterilization treatment can be sufficiently performed.

By the way, the wire-shaped electrode 28 is soldered and fixed to the copper patterns formed on the outer surfaces of the fixing plates 30a and 30b arranged opposite to each other, and is electrically connected. ing.

FIG. 4A shows a copper pattern formed on the outer surface of one fixing plate 30a. This copper pattern was connected to an isolated circular pad 32a, which was electrically insulated on the surface at a predetermined interval and was connected to the isolated circular pad 32a by a wiring pattern so as to be electrically connected on the surface. It is composed of a circular pad 32b. Both circular pads 32a and 32b are arranged with the same predetermined interval. Further, the circular pads 32a are arranged in a line in a direction perpendicular to the direction of the flow of the water to be treated supplied by the circulation pump 12, and the rows of isolated circular pads 32a are arranged in the flow direction of the water to be treated. Rows of connected circular pads 32b are sequentially and repeatedly arranged. In the present embodiment, the isolated circular pads 32a arranged in a row and the circular pads 32b connected to each other are arranged so as to be offset from each other by a half of a predetermined interval, and the flow direction of the water to be treated is different. When the row of the pads 32a and 32b is considered, the row of the connected circular pads 32b is seen in the middle of the row of the isolated circular pads 32a in the flow direction of the water to be treated.

The copper pattern on the outer surface of the other fixing plate 30b is shown in FIG. 4 (b).

The isolated circular pad 34a and the circular pad 34b connected by a wiring pattern so as to be electrically connected on the surface are constituted by the circular pad 34a, and are perpendicular to the flow direction of the water to be treated supplied by the circulation pump 12. Circular pads 3 connected to isolated circular pads 34a arranged in a row
4b and 4b are sequentially and repeatedly disposed in the flow direction of the water to be treated, as in the case of the fixed plate 30a. However, in this fixed plate 30b, when the rows of the pads 34a and 34b are expected in the flow direction of the water to be treated, the circular pads 34a isolated in the middle of the row of the connected circular pads 34b in the flow direction of the water to be treated. It is configured to see the sequence of.

By the way, the installation position of the isolated circular pad 32a on the outer surface of the fixed plate 30a and one fixed plate 30a
The installation position of the connected circular pads 34b on the outer side surface of b is just a mirror image. The positional relationship between the connected circular pads 32b on the fixed plate 30a and the isolated circular pads 34a on the fixed plate 30b are also mirror images of each other. Also, each pad 32a, 32b, 34a and 34
A hole is formed in the center of b so as to pass through the respective fixing plates 30a and 30b. In this hole, the above-mentioned wire-shaped electrode 2
8 is inserted, and both ends thereof are fixed plates 30.
a, a circular pad 32a installed on the outer surface of 30b,
It is fixed by soldering to 32b, 34a and 34b. As a result, the electrode groups to which the circular pads 32b connected to one fixing plate 30a are connected and the other fixing plate 30b are connected.
A group of electrodes connected to the circular pads 34a connected to each other form a pair of anodes 28a and cathodes 28b arranged with a required interval, and these electrodes 28a, 2
8b and fixed plates 30a, 30b are integrated electrode unit 2
6 is formed.

FIG. 5 schematically shows the blocks controlling the electrical components of the sterilizer of the present invention.

Electric power is supplied to the main body 16 of the sterilizer through the earth leakage breaker 44 and the power feeding cable, and it is surely grounded by the earth cable 46 to protect against earth leakage and electric shock. Further, the flow rate sensor 40 described above is connected to the control circuit 42,
The detection result regarding the flow rate of the water to be treated flowing in the apparatus body 16 is input to the control circuit 42. Further, the memory (RAM) 48 stores various information and command data necessary for automatically operating the present sterilization device, and signals are exchanged with the control circuit 42.

The circulation pump 12 is operated and stopped by a pump drive circuit 50 which receives a control command from the control circuit 42. Similarly, the wire electrode 28
Is driven by the electrolytic cell drive circuit 52, and the indicator 54 for displaying the flow rate of the water to be treated flowing in the sterilizer, the electrolytic state in the electrolytic cell 14 or various errors is driven by the indicator drive circuit 56. Further, the power required for these electrical components is supplied by the power supply circuit 58.

In FIG. 1, the water to be treated sucked by the circulation pump 12 from the storage tank 10 via the water supply hose 22 is supplied to the electrolytic tank 14 in which the assembled electrode portion 26 is stored. At this time, the anode 28a and the cathode 28b to which a predetermined DC voltage is applied are brought into contact with each other. For this reason, the water to be treated is electrolyzed to generate oxygen gas in the vicinity of the anode 28a, and the hydrogen ion concentration in the water to be treated around this is increased to be acidic. In addition, hydrogen gas is generated in the vicinity of the cathode 28b, and the concentration of hydrogen ions in the water to be treated existing around the hydrogen gas becomes low and the hydrogen gas becomes alkaline.

Thus, the oxygen gas and acidified water to be treated in the vicinity of the anode 28a and the hydrogen gas and alkalized water to be treated in the vicinity of the cathode 28b do not exist in a separated state, The treated water exists in a mixed state of steam and water. Here, in the vicinity of the anode 28a, along with the generation of oxygen gas, active oxygen is generated in the form of ozone (O ₃ ) or hydrogen peroxide solution (H ₂ O ₂ ). Further, if the water to be treated contains a chlorine component, it produces a chlorine compound having a very strong bactericidal action. With these products, the sterilization treatment of unnecessary microorganisms in the water to be treated is appropriately performed. Further, since the vicinity of the anode 28a becomes strongly acidic and the vicinity of the cathode 28b becomes strongly alkaline by electrolysis, the sterilizing effect is exerted even by such a change in the hydrogen ion concentration, and the electrodes 28a, 28b are also formed.
With respect to unnecessary microorganisms attached to the surface, the bactericidal effect is exerted also by the redox reaction occurring on the surface.

As mentioned above, these electrodes 28a, 2
8b is adjusted to a direction perpendicular to the flow direction of the treated water supplied by the circulation pump 12, and when the flow direction of the treated water is taken into consideration, the anodes 28a arranged in the treated water flow direction are arranged. Since the cathode 28b is disposed so as to be seen in the middle, it is easy to efficiently contact the water to be treated supplied into the electrolytic cell 14 with the electrodes 28a and 28b.

Further, since the distance between the electrodes is as narrow as about 1 to 3 mm, the electrodes 28a and 28 necessary for passing an electrolytic current for performing an effective sterilization treatment by electrolysis of the water to be treated.
Since the electrolysis voltage applied between points b is low, the load on the power source for electrolysis can be light, and there is no fear of electric shock or leakage, resulting in high safety. Further, since the electrodes 28a and 28b are in the form of thin wires, the electrolytic cell 14 as a whole has a wide opening, and the flow resistance of the water to be treated supplied to the electrolytic cell 14 is small,
The load on the circulation pump 12 is small, and there is no adverse effect on the life of the circulation pump 12.

Furthermore, in the present embodiment, the electrolytic cell 1
Since the material of the electrodes 28a, 28b constituting No. 4 is a platinum-coated wire using a titanium wire as a base material, in the oxidation-reduction reaction that occurs on the electrode surface during electrolysis of the water to be treated, in particular, oxygen that progresses on the side of the anode 28a. It has a higher oxidation potential than the oxygen generation potential for generating gas, and the oxidation reaction of water (generation of oxygen gas) proceeds preferentially,
The electrode material will not be deteriorated or worn out. In general usage, starting from platinum on titanium used in the present embodiment, noble metals, more specifically, gold, silver and platinum group or alloys thereof are materials satisfying this condition, and the electrode material is By using a noble metal, stable electrolysis of the water to be treated and longer life of the device can be achieved.

When electrolysis is carried out in the electrolytic cell 14, p near the cathode 28b due to the above-mentioned generation of alkaline water.
The H value rises, and calcium and magnesium contained as ions in the water to be treated are deposited on the surface of the cathode 28b. As described above, when the surface of the cathode 28b is coated with these deposits in a layered manner, there is a disadvantage that the electrolytic action gradually decreases. Therefore, in the present embodiment, the flow rate of water to the electrolytic cell 14 after the electrolysis of the water to be treated is integrated and measured using the flow sensor 40, and the calculated value is the preset flow rate. Then, a direct current voltage having the opposite polarity to that applied up to that time is applied to the anode 28a and the cathode 28b, and the deposit covering the cathode 28b is dissolved to clean the electrode surface. It should be noted that instead of the amount of water to be treated, the cumulative time of water passage may be adopted as an index for polarity conversion in the electrodes.

Finally, the operation of the sterilizing apparatus of this embodiment will be described with reference to the flowchart shown in FIG.

Prior to driving the sterilizer, the flow rate of the water to be treated and the setting of the voltage or current applied to the electrode 28 in the electrolytic cell 14 are set in the memory (RAM) 48 in advance. It has been done. These set values input to the memory 48 are displayed on the display 54.
It is displayed on the screen and can be visually confirmed easily.

In step S1 of FIG. 6, it is confirmed whether an operation key (not shown) provided in the sterilizer is turned on (ON), and if the result is affirmative (YES), the circulation pump 12 is driven. Then, the water to be treated in the storage tank 10 starts to circulate in the pipeline system shown in FIG. If the determination result is negative (NO), the circulation pump 12 remains stopped and waits for the operation key to be turned on.

When the operation key is turned on, the next operation is temporarily awaited while the circulation pump 12 is driven. After this waiting, the process proceeds to step S2 to check whether the water to be treated flowing in the pipeline reaches the specified value.
If the determination result is negative (NO), the display 54 also displays an error and the drive of the circulation pump 12 is stopped. If the result is affirmative (YES),
The operation of the circulation pump 12 is continued, and the water to be treated in the storage tank 10 circulates in the order of the suction port 18, the water supply hose 22, the circulation pump 12, the electrolytic cell 14, the drain hose 24, and the discharge port 20, and then again. The circulation of returning to the storage tank 10 is repeated. Further, the electrolytic cell drive circuit 52 is turned on.
Then, the electrolytic action of the electrolytic cell 14 is started.

As a result, all circulating water to be treated passes through the electrolytic cell 14 and is sterilized. After that, the driving key is turned off in step S3.
If the result is negative (N0), the process returns to the previous step S2 to repeat the above-described confirmation work, and the sterilizing process of the circulating treated water is continued. If the result of this step is affirmative (YES), the drive of the circulation pump 12 and the like is stopped.

The structure of the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the invention.

For example, as shown in FIG. 7, the fixing plate 30 forming the assembled electrode portion 26 may be formed integrally with the tank case 24, or may be configured the same as the tank case 24 itself. . With this structure, the structure of the electrolytic cell 14 is simplified and the assemblability is improved,
As a result, cost reduction can be achieved. In this case, the wiring pattern that electrically connects the plurality of wire-shaped electrodes 28 to the anode 28a and the cathode 28b and divides the two electrode groups into two electrode groups is disposed on the outer surface of the tank case 24 and has a wire-like shape. The connection with the electrode 28 will be isolated from the circulating water to be treated. As a result, a part of the electrode is exposed to the outside to cause a risk of electric shock or leakage, but there is no problem if it is sealed with a molding material 60 such as epoxy resin or silicon rubber.

[0040]

As is apparent from the above description, in the sterilizer according to the first aspect, since the water to be treated can be electrolyzed by the plurality of wire electrodes, the distance between the electrodes can be reduced. Also, the electrolytic cell as a whole has a wide opening, and the water to be treated supplied to the electrolytic cell passes without receiving a large flow resistance. Even when applying a voltage between the electrodes to electrolyze the water to be treated that actually flows,
Since the distance between the electrodes is narrow, the voltage applied between the electrodes can be lowered even when an electrolytic current is passed to such an extent that an effective sterilizing effect can be obtained, and the load on the power source for electrolysis is reduced. As a result, the cost and weight of the device itself can be reduced, and since it is driven at a low voltage, there is no risk of electric leakage or electric shock, and safety is high.
Furthermore, since a plurality of electrodes are arranged in the electrolytic cell, it becomes easy to contact the water to be treated with the electrodes for electrolysis, and efficient sterilization can be performed.

Further, in the sterilizer according to the second aspect of the present invention, since the material of the wire-shaped electrode is a noble metal, deterioration and consumption of the electrode material due to redox reaction on the electrode surface during electrolysis of the water to be treated is extremely deteriorated. It is possible to extend the life of the electrolytic cell. When electrolysis is started by applying a predetermined voltage, an oxidation reaction of water occurs in the anode, oxygen gas is generated, and the hydrogen ion concentration becomes high and becomes acidic in the vicinity of the electrode. When the oxidation potential of the electrode material forming the electrolytic cell is lower than the oxygen generation potential at this time, the oxidation reaction of the material progresses, resulting in deterioration or consumption of the material. That is, the life of the electrode becomes short. On the other hand, if the oxidation potential of the electrode material is higher than the oxygen generation potential, the oxidation reaction of water (generation of oxygen gas) will proceed preferentially and the electrode material will not be deteriorated or consumed. In general use, noble metals, more specifically, gold, silver and platinum group metals or their alloys are materials that satisfy this condition. By using noble metal as the electrode material, stable electrolysis of the water to be treated can be achieved. The life of the device can be extended.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a basic configuration of a sterilizing apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical perspective view showing a schematic structure of an electrolytic cell.

FIG. 3 is a perspective view showing an assembled electrode portion that constitutes an electrolytic cell.

FIG. 4 is a schematic view showing a wiring pattern on an outer side surface of a fixing plate that constitutes the assembled electrode portion.

FIG. 5 is a schematic diagram showing a control block capable of individually controlling the electrical components of the sterilizer.

FIG. 6 is a flowchart showing a control flow of the sterilizer.

FIG. 7 is a vertical sectional view showing a schematic structure of another electrolytic cell.

[Explanation of symbols]

 12 Circulation Pump 14 Electrolyzer 24 Tank Case 26 Assembly Electrode 28 Wire Electrode 30 Fixing Plate 32 Circular Pad 34 Circular Pad 40 Flow Sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C02F 1/50 531 C02F 1/50 531R 540 540A 550 550H 560 560F

Claims (2)

[Claims] 1. A sterilizer for sterilizing a liquid contaminated with time by applying a voltage between electrodes to electrolyze the liquid, wherein a plurality of electrodes are arranged at required intervals. A sterilizing device comprising the wire-shaped electrode of. 2. The sterilizer according to claim 1, wherein a material of the wire electrode is a noble metal.