JPH06154757A - Electrolytic level adjusting device for ionic water forming device - Google Patents

Abstract

PURPOSE:To carry out accurate pH adjustment easily by installing a semiconductor strain gauge sensing inflow water, adjusting the electrolytic level based on its output and carrying out the pH adjustment in a system of forming alkali ionic water and acid water by electrolysis. CONSTITUTION:A semiconductor strain gauge 1 for measuring water pressure is installed on the bottom section in a water purifier filtering surface water or the like by means of active carbon, and sensing output is amplified by a differential amplifier 2 and transmitted to a control section 3. The sensing input from the differential amplifier 2 is A/D converted and analyzed by micro-processing in the control section 3, and an analysis data is decided. That is, the variation in sensed value from the semiconductor strain gauge 1 is monitored, and data decision processing for sensing the variation value of flow rate of inflow water based on the preliminarily memorized sensed value versus water pressure and flow rate conversion table is performed, and based on the flow rate variation value of inflow water versus a pH correction data of formed water formed by the computed water pressure value or flow rate value, the electrolytic voltage and electric current of an electrolytic power source 4 are controlled variably by the optimum value and the pH adjustment of formed ionic water is carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electrolysis level adjustment by the flow rate of an ionized water generator, and more particularly to an electrolysis level adjustment device for detecting flow rate by a semiconductor strain gauge.

[0002]

2. Description of the Related Art In the conventional ion water generator, two or more conventional water pressure switches are used in place of a water meter to adjust the electrolysis level for fluctuations in the flow rate of inflow water. These water pressure switches are used as water purifiers. It was installed at two or more points such as inside, and the inputs due to changes in water pressure were compared and regarded as flow rate fluctuations, and the voltage and current at the electrolysis level were varied to respond to flow rate fluctuations.

[0003]

However, in such a prior art, it is necessary to use two or more water pressure switches, and the detection accuracy depends on the mounting position of each water pressure switch and the sensitivity of the water pressure switch. There's a problem.

The present invention has been made in view of the above-mentioned problems, and by using a semiconductor strain gauge having high sensitivity to cope with the detection of the flow rate, it is possible to effectively generate p of ionic water.
It is an object of the present invention to provide an electrolytic level adjusting device for an ionized water generator that is compatible with H adjustment.

[0005]

In order to achieve the above object, the present invention provides an ion water generator for producing alkaline ionized water and acidic water by applying an electrolysis power source to an electrolyzer to produce a water purifier. A semiconductor strain gauge that is installed inside to detect inflow water, a differential amplifier that amplifies a signal corresponding to a change in the resistance value of the semiconductor strain gauge, and an input signal from the differential amplifier are used to determine the flow rate of inflow water. It is characterized by comprising a control unit for detecting and adjusting the electrolysis level of the electrolysis power source to adjust the pH.

[0006]

With the above structure, the water pressure of the inflow water flowing into the water purifier is detected as the resistance value change of the semiconductor strain gauge, and the detection signal is amplified by the differential amplifier and input to the control unit. Since the control unit analyzes and judges the input signal data, detects the flow rate, and variably controls the electrolysis power source, it is possible to control the electrolysis level corresponding to the fluctuation of the flow rate of the inflow water.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention. In FIG. 1, 1 is a semiconductor strain gauge for measuring water pressure,
It is composed of a Zener diode for applying a constant voltage to a bridge circuit formed by a resistance component formed by diffusing impurities on the surface of a semiconductor diaphragm, and other signal processing transistor circuits. A section shows a gauge portion for detecting the water pressure of the semiconductor strain gauge 1.

Reference numeral 2 is a differential amplifier for amplifying the resistance change signal of the semiconductor strain gauge 1. Reference numeral 3 is a signal from the differential amplifier 2 to detect a flow rate change and control the pH of generated ion water by microcomputer control. The control unit 4 controls the electrolysis output by the control unit 3 in a variable manner. Reference numeral 5 is a water purifier that flows in tap water and filters it with activated carbon, etc., by installing a semiconductor strain gauge 1 at the bottom for detection.
The tap water filtered by the water purifier 5 flows into an electrolysis tank (not shown), and the electrolysis power source 4 is applied to electrolyze it.

Next, the operation will be described. The water pressure of the water purifier 5 is detected by the semiconductor strain gauge 1, and the detected output is amplified by the differential amplifier 2 and sent to the control unit 3. The control unit 3 analyzes the detection input from the differential amplifier 2 by A / D conversion in the I / O unit by the microcomputer processing, and determines the analysis data.

In general, the sensitivity K of the semiconductor strain gauge 1 is about 150 when the metal gauge or the like is about 2, and since the sensitivity is high, the control unit 3 subdivides the sample cycle of A / D conversion to obtain semiconductor strain. It is also possible to judge a minute change in the detection output of the gauge 1.

Therefore, the control unit 3 monitors the variation in the detected value from the semiconductor strain gauge 1 and performs a data determination process for detecting the variation value of the inflow water flow rate from the detection value versus water pressure / flow rate conversion table created and stored in advance. From the calculated water pressure value or flow rate value, based on the flow rate fluctuation value of the inflow water vs. pH correction value data of the generated water, the electrolysis voltage and current of the electrolysis power source 4 are variably controlled by the optimum values to adjust the pH of the ion generated water. To do. In addition, the control unit 3
The microcomputer also controls the hysteresis correction of the output characteristic due to the characteristic variation of the semiconductor strain gauge 1.

In this embodiment as described above, the flow rate is obtained by the control section 3 subdividing the analysis data detected and detected by the control unit 3 by the microcomputer processing using the high-sensitivity semiconductor strain gauge 1 to analyze and judge the flow rate. Since the electrolysis level is adjusted according to the value data and the variation in the characteristics of the semiconductor strain gauge is also corrected, only the semiconductor strain gauge 1 is required for the flow rate detection, and highly accurate control corresponding to the flow rate becomes possible.

[0013]

As described above, according to the present invention,
A semiconductor strain gauge that is installed inside the water purifier to detect inflow water, a differential amplifier that amplifies the change in resistance value of the semiconductor strain gauge, and the flow rate of inflow water by judging the output signal of the differential amplifier. Is detected and the electrolysis level of the electrolysis power source is adjusted to p
Since it has a control unit that adjusts H, changes in water pressure can be detected with a small number of parts, there is no need to worry about variations in water pressure switches as in the conventional example, and because it is controlled by a microcomputer, semiconductor strain gauges can be used. There is an effect that the variation of itself can be corrected by software.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Semiconductor strain gauge 2 Differential amplifier 3 Controller 4 Electrolytic power supply 5 Water purifier

Claims (1)

[Claims] 1. An ion water generator for producing alkaline ionized water and acidic water by applying an electrolysis power to an electrolyzer to produce alkaline ionized water and acid water, and a semiconductor strain gauge installed inside the water purifier to detect inflow water, A differential amplifier that amplifies a signal corresponding to a change in the resistance value of the semiconductor strain gauge, and a flow rate of inflow water is detected by determining an input signal from the differential amplifier, and an electrolysis level of an electrolysis power source is adjusted to adjust pH. An electrolysis level adjusting device for an ionized water generator, which is provided with a control unit for performing.