JPH06190366A - Ionic water preparation device - Google Patents

Abstract

PURPOSE:To provide an ionic water preparation device preparing strong acid water. CONSTITUTION:When a strong acidic water mode switch 1 is pushed, other modes are cancelled and the strongly acidic water mode is set. The flow rate is adjusted by issuing a flow rate adjusting signal for adjusting the optimum flow rate when strongly acidic water is prepared from a control section 7, and a strongly acidic level signal for setting the strongly acidic level of the optimum flow rate is transmitted from the control section to an electolytic level control circuit 8 and the electroytic voltage of strongly acidic level is generated in the electlytic voltage generating circuit 9 and applied to an electrolytic cell 4 to prepare the strongly acidic water.

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 capable of generating strongly acidic water.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram of a conventional ion water generator. When tap water flows into a water purifier from a tap, a water pressure sensor senses it and a control unit starts the generator. Tap water is filtered by a filter such as a porous hollow fiber membrane / antibacterial activated carbon of a water purifier to remove chlorine and mold, and then flows into an electrolytic cell (the ion water generator has a storage tank type and a continuous type, but here Described is a continuous ionized water generator that is connected to a faucet to continuously produce alkaline ionized water).

The controller sends to the electrolysis level control circuit a pH set value from the mode switching input circuit and an electrolysis level setting signal for setting the electrolysis level according to the flow rate value. The electrolysis level control circuit controls the electrolysis voltage generation circuit to generate an electrolysis voltage of a specified level, which is applied to the electrolysis cell to start electrolysis.

There are several types of electrolytic voltage generating circuits, and the tap switching system in which the secondary side tap of the power transformer is switched in four stages enables pH adjustment in four stages. Also, in the turn-on time control method of the thyristor bridge circuit whose timing is controlled by detecting the zero-cross by the zero-cross detection circuit, or the regulator control method, the duty ratio control from the electrolytic level control circuit, the ladder / register switching control, etc. It is also possible to adjust the pH by stepless step setting.

The produced water produced by electrolysis is taken out from the extraction pipe as alkaline ionized water and acidic water according to the use. The alkaline ionized water in this case usually has a pH of 7-9.
It is often used for about 5 times, and acid water is mainly used as a weakly acidic lotion such as astringent water, so p
The thing of about H3-4 is used.

Next, the polarity switching circuit is switched by a cleaning signal from the control unit, a voltage of opposite polarity is applied to the electrodes, and cleaning is performed to remove the adhered scale. 1
In a small household set of 0 to 200 W, an automatic cleaning method is used, and a cleaning time at a fixed voltage of about 30 seconds is set for an integrated type time-up time of about 10 minutes, and many manual cleaning can be performed.

[0007]

In such a conventional example, since the pH of the generated acidic water is about 3 to 4, the sterilizing and disinfecting effects are weak, and the sterilizing is performed in food washing and barbershops. However, there is a problem that it cannot be used for disinfection. In view of the above problems, it is an object of the present invention to provide an ion water generator that generates a strongly acidic water having a pH of 2 to 3 by providing a mode switch for generating a strongly acidic water.

[0008]

In order to achieve the above-mentioned object, the present invention provides an ion water generator for applying an electrolytic power supply between electrodes of an electrolytic cell to generate alkaline ionized water and acidic water by the power supply. A strongly acidic water mode switch that cancels the mode switching that sets the electrolysis level of the electrolysis power source applied to the electrolytic cell and sets the strongly acidic water mode, and a strong acid sent from the control unit according to the strongly acidic water mode switch input. Of the inflow water by the electrolysis voltage generating circuit for generating the electrolysis voltage of the strong acid level by the sex level signal and applying it to the electrolyzer and the flow rate control signal sent from the control unit by the input of the strong acid water mode switch. Accordingly, a flow switch for adjusting the pH value of the produced water in the electrolytic cell is provided.

[0009]

With the above structure, when strongly acidic water is required, if the strongly acidic water mode switch is turned on, the mode switching that sets the electrolysis level to generate alkaline ionized water is canceled, A strongly acidic water mode, which is an electrolysis level for generating strongly acidic water, is set at. The control unit checks the amount of inflowing water according to the pH value of the strongly acidic water that has been set and input, and sends a flow rate control signal to the flow switch to adjust to the optimum flow rate, and the electrolytic voltage generating circuit adjusts the strongly acidic water at the optimum flow rate. Since the generated electrolysis voltage is generated and applied to the electrolytic cell, it is possible to obtain strongly acidic water having a required pH value.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an ionized water generator with a strongly acidic water mode according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a strongly acidic water mode switch for the user to set and input the strongly acidic water mode. Reference numeral 2 is a flow switch that adjusts the amount of inflow water by valve adjustment by a step motor or the like, and is used not only for controlling the flow rate in the case of producing strongly acidic water, but also for controlling the pH value adjusting flow rate in the case of producing alkaline ionized water. Reference numeral 3 is a water purifier for filtration, and 4 is an electrolytic cell for separating the anode part and the cathode part with a diaphragm made of a permeable separation membrane to take out acidic water from the anode part and alkaline ionized water from the cathode part.

The electrode of the electrolytic cell is usually composed of two electrodes, an anode and a cathode, but in the case of the continuous type, there are some which have a multi-electrode structure. Reference numeral 5 is a solenoid valve for switching the alkaline ion water extraction pipe and the acidic water extraction pipe, and the alkaline ion water and the acidic water are usually configured to be extracted from separate extraction pipes.
In some cases, a single extraction tube may be sufficient by switching the polarity of the applied voltage.

Reference numeral 6 is a mode switching input circuit for generating alkaline ionized water, and 7 is a system for adjusting the flow rate and the electrolytic level by setting the pH value by inputting the mode switching input circuit 6 and the strongly acidic water mode switch 1. It is a control unit including a microcomputer that controls the entire system. Reference numeral 8 is an electrolysis level control circuit for instructing and controlling the electrolysis voltage generation by a level setting signal "L" for setting the electrolysis level of, for example, five stages including the strongly acidic water mode from the control unit 7.

Reference numeral 9 denotes an electrolytic voltage generating circuit of tap switching type, thyristor bridge type or the like, which generates an electrolytic voltage of five levels or the like in response to an instruction signal from the electrolytic level control circuit 8. Reference numeral 10 denotes a polarity switching / electrolysis ON / OFF circuit for performing ON / OFF of electrolysis by the electrolysis ON / OFF signal from the control unit 7, overcurrent detection by the current sensor, and polarity switching of the electrolysis power supply by the cleaning signal.

Reference numeral 11 is an inspection circuit for checking the power supply frequency, and 12 is a zero-cross detection circuit for zero-cross timing adjustment. 13 is a monitor switch of the water purifier 3,
Reference numeral 14 is a melody ON / OFF switch, 15 is a forced cleaning switch, 16 is a thermistor (a shape-memory alloy hot water prevention valve that is normally set at the position of the water purifier 3 and detects an erroneous inflow of hot water to notify the control unit 7). (Also used) is a temperature sensor by the circuit. Reference numeral 17 is a water pressure sensor that detects the flow rate by the water purifier 3 and notifies the control unit 7 of the flow rate.

The display circuit 18, the melody generating circuit 19, and the buzzer output circuit 20 are circuits for notifying the user.
Reference numeral 1 is a reset circuit of the microcomputer.

Next, the operation will be described. The operation for producing normal ionized water is the same as that of the conventional example, and therefore the operation for producing strongly acidic water will be omitted and described. When the strongly acidic water mode switch 1 is pressed, the control unit 7 cancels all the setting modes of the ion water pH value up to then, and the forcibly low pH value (2 to 3) strongly acidic water mode is set. To set.

The control unit 7 examines the flow rate data from the water pressure sensor 17 to calculate the optimum flow rate value and electrolytic voltage value for producing strongly acidic water having a pH value of 2 to 3 by the control unit 7,
A flow rate adjusting signal is sent to the flow switch 2 to drive the step motor and move the flow rate valve to adjust the flow rate to an optimum value.

A strongly acidic level signal "L" for producing strongly acidic water of pH 2-3 at the optimum flow rate value is sent to the electrolytic level control circuit 8. When the voltage generating circuit 9 is a thyristor bridge, the electrolysis level control circuit 8 triggers the zero-cross data in the control unit 7 and the strong acid level signal "L" which is sent with timing adjusted by the power supply frequency data. Gate trigger "H" in the circuit
Convert to and trigger the thyristor gate.

When the voltage generating circuit 9 is of the transformer / tap switching type, the strong acid level signal is converted into the tap switching relay drive signal "H". The electrolysis voltage generation circuit 9 is controlled by the control signal from the electrolysis level control circuit 8 to control the maximum turn-on time in the case of a thyristor bridge, and is newly provided in the case of the tap switching type. By switching to the tap (strongly acidic level) position in the fifth stage, the maximum electrolytic voltage (electrolytic current) at the strongly acidic level is generated.

The generated electrolysis voltage of the strong acid level is applied to the electrolytic cell 4 via the polarity switching / electrolysis ON / OFF circuit 10 to perform power supply, and the solenoid valve 5 is switched to the acidic water extraction pipe to generate the electrolysis. Strongly acidic water is taken out. After that, although not shown, the pH value is checked by the pH sensor, and fine adjustment is performed by the control unit 7.

Incidentally, the pH value control in the production of strongly acidic water is
It was explained as both flow rate control and electrolytic voltage control.
Since the water pressure and the flow rate are different depending on the usage environment of the ionized water generator, the electrolytic voltage is fixed and the flow rate is adjusted.
Of course, the H adjustment and the pH adjustment by changing the electrolysis voltage while keeping the flow rate constant can be performed independently, respectively, and the control unit 7 may be configured to determine the flow rate state and execute these control selections. .

As described above, in this embodiment, the strongly acidic water mode switch for canceling the mode switching for setting the electrolysis level and setting the strongly acidic water mode, and the flow for adjusting the flow rate to perform pH adjustment. With a switch,
Since the pH is adjusted by adjusting the flow rate and the electrolytic voltage at the strongly acidic level, strongly acidic water having a pH of 2 to 3 can be easily obtained.

[0023]

As described above, according to the present invention,
Strong acid water mode switch that sets the electrolysis level of the electrolysis power supply applied to the electrolytic cell and cancels the mode switching to set the strong acid water mode, and the strong acid sent from the control unit in response to the strongly acidic water mode switch input. Generated by adjusting the amount of inflow water by the flow rate control signal sent from the control unit by the electrolysis voltage generation circuit that generates the electrolysis voltage of the strong acid level by the sex level signal and applies it to the electrolyzer. Since it is provided with a flow switch for adjusting the pH value of water, there is an effect that strong acidic water of pH 2-3 having sterilization and disinfection hardening can be easily obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of an ionized water generator with a strongly acidic mode according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional alkaline ionized water generator.

[Explanation of symbols]

 1 Strong acidic water mode switch 2 Flow switch 3 Water purifier 4 Electrolyzer 5 Solenoid valve 6 Mode switching input circuit 7 Control unit 8 Electrolysis level control circuit 9 Electrolysis voltage generation circuit 10 Polarity switching / electrolysis ON / OFF circuit

Claims (1)

[Claims] 1. An ion water generator for applying an electrolysis power supply between electrodes of an electrolysis cell to generate alkaline ionized water and acidic water by the power supply, and mode switching for setting the electrolysis level of the electrolysis power supply applied to the electrolysis cell. A strong acid water mode switch for canceling and setting the strong acid water mode, and a strong acid level electrolysis voltage generated by a strong acid level signal sent from the control unit in response to the input of the strong acid water mode switch to generate the electrolysis. For adjusting the pH value of the generated water in the electrolytic cell by adjusting the amount of inflowing water by the electrolytic voltage generating circuit applied to the cell and the flow rate control signal sent from the controller by the strongly acidic water mode switch input. An ion water generator comprising a flow switch.