JPH0780456A - Ion water making device - Google Patents

Abstract

PURPOSE:To eliminate the necessity for the disposal of residual water and to achieve the improvement of user's convenience or the conservation of water by controlling an electrolytic treatment means so that the pH value of residual water is allowed to approach a pH set value at the time of next electrolytic treatment based on the pH memory value of residual water and the pH set value. CONSTITUTION:In an ion water making device, the water subjected to electrolytic treatment in an electrolytic cell remains in the electrolytic cell 10 even after electrolytic treatment. Hereupon, the current supplied to the electrode of the electrolytic cell 10 is controlled by a CPU 12. The CPU 12 is connected to an ROM 14 and an ROM 16 both of which are memory devices. The CPU 12 is further connected to a pH degree setting switch 18 and an acidic or alkaline water quality setting switch 20. The CPU 12 controls the current supplied to the electrode of the electrolytic cell 10 on the basis of the memory value related to the pH of residual water and a pH set value so that the pH value of residual water is allowed to approach the pH set value at the time of electrolytic treatment. By this constitution, the necessity for the disposal of residual water is eliminated and user's convenience is improved and water is conserved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ion water generator in which water electrolyzed in an electrolytic cell remains in the electrolytic cell or the like after completion of the electrolytic treatment.

[0002]

2. Description of the Related Art Conventionally, ion water generators have been constructed so that water is drawn into an electrolytic cell from a faucet or the like. In the electrolytic cell, an anode and a cathode are separated by a diaphragm, and the water is electrolyzed by the anode and the cathode. Further, the hydrogen ion concentration for electrolytically treating the water, that is, the pH, is configured to be arbitrarily set by the user. Since the pH of the tap water is approximately constant and is known in advance, the pH of the tap water is configured to be controlled by increasing / decreasing the current flowing through each electrode. Then, the water for electrolysis (acidic water) electrolyzed by the anode and the water for water electrolyzed (alkali water) by the cathode are configured to flow out to separate hoses by the water pressure of the water to be supplied later. It is configured such that the electrolytically treated water is obtained from the tip of each hose.

[0003]

However, after the desired amount of water has been obtained, when the water pressure of the water decreases due to the faucet being closed, the electrolytically treated water remains in this hose or electrolytic cell. To do. For example, when the remaining water (remaining water) has a higher acidity than the water generated in the next electrolytic treatment, the water used at the beginning of the electrolytic treatment to be performed next becomes stronger than the desired acidity. Conversely, the acidity may be weaker than desired. Therefore, in order to obtain the desired pH of the water, there is a problem that it takes time to dispose the water for a while after the electrolytic treatment is started and the operation is interrupted. In addition, there is a problem that the water used as water is wasted.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to be easy to use.
An object is to provide an ion water generator that can save water.

[0005]

To achieve this object, an ionized water generator of the present invention comprises an electrolytic treatment means for electrolytically treating water, a setting means for setting the pH of the water to be electrolyzed, and an electrolytic treatment. Based on the storage means that stores the pH of the water remaining in the tank, etc., and the pH of the water remaining in the electrolytic tank and the set pH, the water remains in the electrolytic tank during the next electrolytic treatment. And a control means for controlling the electrolytic treatment means so as to bring the water to be used close to the set pH.

[0006]

In the ionized water generator of the present invention having the above construction, the electrolytic treatment means electrolytically treats the water. The setting means sets the pH of the water so that the desired pH of the water can be detected. The storage means stores the pH of the water used in the electrolytic cell or the like so that the pH of the water used can be detected. The control means, based on the pH and the set pH of the water remaining in the electrolytic tank, so as to bring the water remaining in the electrolytic tank close to the set pH during the next electrolytic treatment. Controls the electrolytic treatment means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the ion water generator of the present invention will be described below with reference to the drawings. The flow path for drawing in the water, the flow path for draining the water, the electrolytic cell, the electrode, etc. are the same as those of the conventional structure, and the description thereof is omitted.

Depending on the anode of the electrolytic cell 10, pH 2 (= F
_min ) to 6 of acidic ionized water (referred to as acidic water). Also, depending on the cathode, pH
It is configured such that 8 to 12 (= F _max ) alkaline ionized water (referred to as alkaline water) can be generated. The electrodes of the electrolytic cell 10 are configured so that the power supplied thereto is controlled by the CPU 12 that controls the overall operation. The electrolytic cell 10 is configured such that 10 ml (milliliter) of water is poured every second and the water is subjected to an electrolytic treatment (generation efficiency k = 10 ml / s).

As shown in FIG. 2, the CPU 12 is connected to a RAM 14 and a ROM 16 which are storage devices. Further, the CPU 12 is connected to a degree setting switch 18 for setting a desired pH. The CPU 12 is connected to a water quality setting switch 20 that sets whether the desired water quality is acidic or alkaline. The CPU 12 is connected to the adjusting lamp 22, the draining lamp 24, and the designated operation lamp 26.

The degree setting switch 18 has three settings of high, medium and low.
It is configured so that the pH can be set in stages. When the degree setting switch 18 is set to “strong”, pH4
Of acidic water and alkaline water of pH 10 are produced. When set to "Medium," pH 5
Of acidic water and alkaline water of pH 9 are produced. When set to “weak”, acidic water of pH 6 and alkaline water of pH 8 are generated.

Further, the CPU 12 is configured to store the pH values on the anode side and the cathode side in the RAM 14 as the degree of electrolytic treatment based on the degree setting switch 18. When the water quality setting switch 20 is set to the acidic side, the CPU 12 uses the pH of the anode side for the control calculation, and when the water quality setting switch 20 is set to the alkaline side, the pH of the cathode side is used for the control calculation. Is configured for use.

The RAM 14 is provided with a storage area for storing pH. The ROM 16 contains mixed water (mixed water) which is generated by the previous electrolytic treatment and remains in the electrolytic bath 10 (referred to as residual water) and water generated by the electrolytic treatment this time (referred to as water for the present). A storage area for storing a program and data for bringing the pH of water (referred to as water) close to the set pH is provided.

Next, the adjusting operation for obtaining acidic water when the residual water is less acidic and alkaline than the current water will be described with reference to the flow charts shown in FIGS.

The residual amount q of the residual water in the electrolytic cell 10 and the hose has been previously determined to be 200 ml by experiments. The water before the electrolytic treatment has a pH of 7 (= F _mid ). Further, the water quality setting switch 20 is set to the acidic side, and the pH on the anode side is used for the control calculation. Numerical values used for control calculation are represented by F _i (F, F ₀ , F ₁ ...). Furthermore, the pH of the previous electrolytic treatment (pH on the anode side = 6, pH on the cathode side
= 8) is stored in the RAM 14.

First, when the operator changes the degree setting switch 18 from "weak" to "strong", the pH of the electrolytic treatment is set (pH on the anode side = 4, pH on the cathode side = 10).
Are automatically stored in the RAM 14.

Next, the water is poured into the electrolytic cell 10 to start the electrolytic treatment (S10: Yes). Since the pH has been changed and the stored pHF ₀ (= pH 6) is different from the pHF ₁ (= pH 4) set this time,
It is determined that the pH of the resulting mixing water is different from the set pHF ₁ (S11: Yes).

Next, since the degree setting switch 18 is changed from "weak" to "strong" and the water quality setting switch 20 is set to the acidic side, the pHF ₁ in which the acidic water of the mixed water is set. It is determined that the water becomes closer to neutral than the water used in (S12: Yes, S13: No). That is, in order to bring the mixed water close to the set pHF ₁ , it is determined that it is necessary to generate water having a higher acidity than pHF ₀ (control water). Then, the strongest acidic pHF _min (= pH2) that can be generated is R as the pHF of the adjustment water.
It is stored in the AM 14 (S26).

Next, a control time t (= 2.2 seconds) for generating a required amount of control water is calculated based on the equation 1 described later (S15).

[0019]

[Equation 1]

The CPU 12 sets the degree of electrolytic treatment of the water (electrolytic strength) to pHF on the anode side, and pHF (= pH2) adjustment water is generated on the anode side (S1).
6). The electrolytic strength on the cathode side is pH 12 (= 14-
It is set to produce F) alkaline water. next,
The in-adjustment lamp 22 is turned on to notify that the adjustment is in progress (S17). The injected water is electrolyzed in the electrolytic cell 10 and flows out of the ion water generator together with the residual water in the hose.

When the adjustment time t has elapsed (S18: Ye
s), the in-adjustment lamp 22 is turned off, and it is notified that the adjustment is completed (S19). Thus, pHF ₀
The residual water of pH 2 and the water of pH F _min are mixed to generate water of the set pH F ₀ .

Subsequently, the electrolytic strength was changed to pHF ₁ ,
Water of pHF ₁ is generated on the anode side (S20). Next, the designated operation lamp 26 is turned on and the set p
It is notified that HF ₁ is being electrolyzed (S2
1). Next, the pH set this time (pH on the anode side =
4, pH on the cathode side = 10) is updated and stored in the RAM 14 as the pH of the previous electrolytic treatment (S22). When the water injection is stopped (S23: No), the electrolysis process is stopped and the designated operation lamp 26 is turned off (S24,
S25).

As described above, even if the residual water is included in the current water, the pH of the electrolytic treatment of the resulting mixed water can be set to the set pH F ₁ of the electrolytic treatment.

Further, when the desired residual alkaline water is obtained when the residual water is more acidic and alkaline than the current water, the residual water and the untreated water of pHF _min (pH 7) are mixed and set. This produces alkaline water of pH.

In this embodiment, the production efficiency is low with respect to the residual amount q, and when acidic water is obtained when changing from "strong" to "weak", and when changing from "weak" to "strong". When the alkaline water is obtained, the adjustment time t becomes long, so in those cases, the drainage time h for draining the residual water is calculated and the drainage is instructed. As described above, also in those cases, the adjustment water may be generated. If the water used is expensive or the production efficiency is high, the water used can be saved by configuring as shown in FIG.

[0026]

As is clear from the above description, according to the ion water generator of the present invention, the residual water p
Based on H and the set pH, the residual water in the next electrolytic treatment is brought close to the set pH, and even if the residual water is included in the water by the next electrolytic treatment,
The pH of the water used in the subsequent electrolytic treatment can be set to the set pH. Therefore, the trouble of discarding the remaining water can be reduced, the remaining water can be effectively used, and the water can be saved.

[Brief description of drawings]

FIG. 1 is a flow chart of control of an ionized water generator according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the ionized water generator.

FIG. 3 is a flowchart of control of the ionized water generator.

FIG. 4 is a flow chart of control of an ionized water generator according to another embodiment of the present invention.

[Explanation of symbols]

 10 Electrolyzer 12 CPU 18 Setting switch 20 Water quality setting switch

Claims (1)

[Claims] 1. In an ion water generator in which the water electrolyzed in the electrolysis tank remains in the electrolysis tank or the like even after the electrolysis treatment is finished, an electrolysis treatment means for electrolyzing the water and a pH of the water to be electrolyzed Setting means, a storage means for storing the pH of the irrigation water remaining in the electrolytic bath, etc., and a p value set with the pH of the irrigation water remaining in the electrolysis bath or the like.
And a control means for controlling the electrolysis treatment means so that the water remaining in the electrolysis tank or the like approaches a set pH in the next electrolysis treatment based on H. Ionized water generator.