JPH04150992A - Water purifying apparatus - Google Patents

Abstract

PURPOSE:To supply only treated water by a simple structure by supplying the water in a cylindrical body into a tub simultaneously with the ultrasonic treatment of said water by an ultrasonic oscillator. CONSTITUTION:When an ultrasonic oscillator 36 is operated, the vibration energy of a vibration plate 36a is transmitted to the water in a cylindrical body 34 and the water is violently vibrated and waterdrops are scattered upwardly by the water surface undulation motion due to vibration to be received in a tube and allowed to naturally flow down to a purified water outflow port 35a. Further, a pair of electrode plates 3A, 3B are fixed to the inner wall surface under the surface (a) of the water of the cylindrical body 34 and an electric field treatment power supply circuit 37 is connected to both electrodes. The first and second switching circuits 5A, 5B are alternately brought to a continuity state by the power supply circuit 37 and the DC voltage of a DC power supply 4 is alternately applied to a pair of the electrodes 3A, 3B while reversed in polarity. When the polarity of the DC voltage applied to the electrodes 3A, 3B is changed over, the DC voltage applied to the electrodes 3A, 3B is reversed in polarity at each time when it reaches reference voltage.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is designed to provide water that is clean to some extent, like gray tap water,
This invention relates to a water purification device that purifies water that cannot be drunk as it is for drinking.

(Prior Art and its Problems) In general, methods for purifying water contaminated with microorganisms and bacteria include chemical treatment and filtration.

However, this type of conventional purification method is suitable for large-scale water treatment such as 1 tQ (il) for water supply, but
Devices that can be used on a daily basis at home have not yet been developed, and in areas where there is no water available to drink raw, drinking water can be purchased in bottled form, or tap water can be boiled to make it drinkable. Therefore, there was a desire to provide a simple water purifier.

In addition, even if tap water is drinkable raw, if the quality of the water source is poor, large amounts of chemicals such as chlorine must be used. There was a problem in that in order to drink it, one had to stop because of the bad taste. Conventionally, as a method to improve this problem, an adsorbent such as activated carbon is used as a filter medium, and this is attached to a water faucet to remove the chlorine odor.

However, this type of purification device has the problem that chlorine, which is a bactericidal agent, is removed from the downstream side of the filter medium, making it easy for bacteria to grow.

(Problems to be Solved by the Invention) In view of the above-mentioned conventional problems, the present invention provides a simple method for converting tap water or natural water that is not suitable for drinking as it is, such as middle-ground tap water or similar tap water with poor quality. To provide a water purification device which is sterilized and deodorized by the device and is delicious as drinking water, and also makes cooked food delicious when used as water for cooking.

(Means for Achieving the Object) The present inventor discovered that applying ultrasonic vibration to water kills microorganisms and bacteria, and that applying a voltage lower than electrolysis to water, so-called electric hot water treatment, causes odor components to be removed. The present invention was completed by focusing on the fact that fine components floating in water, including water, are incorporated into water molecules.
The gist of this is that a cylindrical body with its upper end protruding above the water surface and its lower end submerged below the water surface is tilted and fixed in an aquarium that is automatically replenished with water while keeping the water level within a certain range. The water purifier has a bucket under the opening at the upper end of the cylinder, the tip of the chain gutter is led out of the water tank, and an ultrasonic oscillator is placed below the water surface in the body and directed toward the upper end of the cylinder. The water purification apparatus comprises a pair of electrodes on the inner wall surface of the cylindrical body, and an electric field processing power source that alternately applies a DC voltage lower than water electrolysis to the electrodes.

(Function) This water purification device applies ultrasonic vibrations to the water inside the body by activating an ultrasonic oscillator, which scatters upward from the water surface in the body in the form of droplets, which are received by the bucket and placed in the aquarium. be leaked outside. The physical vibrations at this time kill microorganisms and bacteria. At the same time, hydration is performed by applying a voltage to the electrodes inside the body using the power supply circuit for electrolytic treatment, which deodorizes chlorine odor and organic el rotten odor, and deodorizes bitterness and astringency. Ru.

These deodorizing and detasting effects are achieved by applying electric energy to fragment the combined water molecules, and the fragmented water molecules float odor and flavor components in the water, causing rlj, i &
This is thought to be because it surrounds the 1B component. Furthermore, various hydration operations are carried out by the radiation of electrical energy, which has the effect of depriving bacteria of a place to multiply and cutting off their vitality.

(Example) Next, embodiments of the present invention will be described with reference to the drawings.

Figures 1 and 2 schematically show the apparatus of this embodiment6.
In the figure, 30 is an exterior case in which a water tank 31 is housed. The water tank 31 has an outer case 30
A water supply port 33 of a water tank 32 is inserted downward from the top surface of the water tank 31, and when the water level of the water tank 31 falls below a certain level, water is automatically supplied to a predetermined water level.

- The cylindrical body 34 is inserted diagonally into the water tank 31,
At this time, the inside of the body serves as a processing chamber. This cylindrical body 34 has an upper U
protrudes above the water surface a, and the -m of the tub 35 is below the upper end opening.
The sides are fixed. The tip of this tub 35 is led out of the side surface of the exterior case 30, and serves as a purified water outlet 35a.

An ultrasonic oscillator 36 is housed in the cylinder 34 at a position below the water surface a with the diaphragm 36a facing the upper #i side of the cylinder 34. This ultrasonic oscillator 36 has a frequency of 20 to 30
KHz, and a diaphragm with a width of 12 μm is used.

When this ultrasonic oscillator 36 is activated, the vibration energy of the diaphragm 36a is transmitted to the water in the cylinder 34,
The water is violently vibrated, and water droplets are scattered upward due to the uneven movement of the water surface due to the vibrations, are received by the tub, and naturally flow down through the purified water outlet 35a4.

Furthermore, a pair of t-electrode plates 3 are provided on the inner wall surface of the cylinder 34 below the water surface a.
A and 3B are fixed, and a power supply circuit 37 for electric lifting processing is connected to these two terminals.

This power supply circuit 37 is constructed as shown in FIG.
A pair of electrodes arranged inside, 4 is a DC power source, 5A and 5B are respectively connected to the DC power source 4 via a constant current resistor 6, and direct current is supplied from the source 4 to the water 2 through the resistor 6 to divert the original current. The first step is to alternately apply a DC voltage lower than the decomposition voltage. This is a second switching circuit. These first. Second switching time F! @5A and 5B are respectively composed of resistors 7A and 7B and transistors 8A, 8B, 9A and 9B. 10 is the first. Second switching circuit N5A, 5B
11 is a reference voltage source that generates a reference voltage (for example, 0.7 to 1.0 .mu.) lower than the water electrolysis voltage.

In this embodiment, the reference voltage source 11 is constructed by connecting 2 (1t) diodes 12 in series.The anode sides of these series-connected diodes 12 are grounded, and the cathodes (to) A DC voltage source 4 is connected to the DC voltage source 4 through the DC voltage source 4. 14 compares the DC voltage applied between the electrodes 3A and 3B with the reference voltage of the reference voltage source 11, and when the former voltage is equal to the latter voltage. , a comparator that outputs a rectangular wave switching signal to the switching flip-flop circuit 10; 15 is a resistor connected to an electric path that supplies the voltages of the electrodes 3A and 3B to the comparator 14;

Next, electric hot water treatment using the power supply circuit 37 will be explained. The reference voltage source 11 is set to a reference voltage of I & suitable for water treatment, for example, 0.7 to 1.0. This reference voltage is used as one input of the comparator 14. The comparator 1
4 uses the DC voltage applied to either electrode 3A or 3B as the other input. Comparator 14 connects poles 3A, 3
The DC voltage applied to B is the base I! A rectangular wave switching signal is sequentially output every time the lightning voltage is exceeded. Every time this switching signal is applied, the switching flip-flop circuit 810 outputs the first switching command. Second switching circuit 115
Give it to A and 5B alternately. This leads to the first. The second switching circuits F#15A and 5B are alternately made conductive, and the DC voltage of the DC power supply 4 reverses the polarity and connects the pair of electrodes 3A and 3.
B is applied alternately.

The voltage applied to the electrode 3A or 3B at this time is input to the comparator 14 as described above. In this way, electricity [! 3A
, 3B, the polarity of the DC voltage applied to the electrodes 3A, 3B is reversed each time it reaches the reference voltage, as shown in FIG.

Therefore, the duration of the peak voltage is shortened, and water electrolysis can be prevented from occurring. Also, if the water quality changes, electrode 3A,
Since the capacitance between 3B changes, the rise characteristic of the DC applied voltage changes, and the polarity switching period changes automatically.

The difference in the charge/discharge waveforms as shown in Figure 4 is due to the semiconducting effect of water.If the value of the constant current resistor 6 is set so that this semiconducting effect of water occurs, the effective Water treatment is possible. If the value of the constant current resistor 6 is adjusted so as to obtain the waveform shown in FIG. 4, the frequency will not change much due to fluctuations in the power supply and will be stable, and no electrolysis will occur.

In this way, ultrasonic vibration energy is applied by the ultrasonic oscillator 36 described above, and at the same time, the electrodes 3A, 3
The water electrolytically lifted by B is poured into the tub 35 using ultrasonic vibrations and flows out from the outlet 35a.6 (Effects of the Invention) As explained above, the purification device of the present invention uses ultrasonic oscillators to By simultaneously treating the water inside the body with ultrasonic waves and sending it into the tank, only the treated water can be supplied with a simple structure because the treated water is drained out by the energy during the treatment. In addition, since ultrasonic treatment is performed at the same time as electric pumping treatment, chlorine odor and putrefaction odor are encapsulated in water molecules, suppressing the growth of fungi, and at the same time, sterilizing water by ultrasonic vibration. This is what was obtained.

Note that when the circuit according to claim 2 is used, the DC applied voltage between the electrodes is detected and the polarity of the DC applied voltage is switched when the voltage reaches a predetermined voltage.
The switching cycle of the DC applied voltage changes automatically depending on the water quality, allowing water treatment to be performed at the optimal cycle. In addition, in this water treatment method, the polarity is switched when the DC applied voltage reaches its peak value, which shortens the duration of the peak voltage, preventing water electrolysis, and ensuring proper In addition, constant current can be secured with a constant current resistor, and the polarity is switched when the peak voltage is reached, eliminating the need for a constant voltage circuit and simplifying the circuit configuration. , it is possible to reduce the manufacturing cost of the device.

[Brief explanation of the drawing]

The drawings show a practical example of the present invention; FIG. 1 is a vertical sectional view showing the overall outline, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. The circuit diagram of the power supply circuit, FIG. 4, is a switching waveform diagram of the voltage applied between the electrodes by the power supply circuit. 2...Water, 3A, 3B...Electrode, 4.
...DC power supply, 5A, 5B...1st. Second switching circuit, 6... Resistor for diversion, 10... Switching flip-flop circuit, 11.
...Reference is power supply, 12...Diode,
14... Comparator, 30... Exterior case, 31... Water tank, 32... Water supply tank, 33... Water supply port, 34...Cylinder body,
35...Pub, 35a...Purified water outlet, 36...Ultrasonic oscillator, 36a...
diaphragm. Patent applicant: Hide Hayakawa, Rihito Mebushi, patent attorney 1) Masao Naka (Fig. 2) Voltage

Claims (2)

[Claims] (1) A cylindrical body with the upper end protruding above the water surface and the lower end submerged below the water surface is tilted and fixed in a water tank where the water level is kept within a certain range and water is automatically replenished. A purified water receiving tub is provided under the opening at the upper end, the tip of the tub is guided out of the water tank, and an ultrasonic oscillator is provided at a position below the water surface in the timer body, facing toward the upper end side of the cylindrical body. A water purification device comprising a pair of electrodes on the inner wall surface of the water purifier, and an electric field processing power supply circuit that alternately applies a DC voltage lower than water electrolysis to the electrodes. (2) The electric field processing power supply circuit is connected to a DC power supply through a constant current resistor, and receives a DC voltage lower than the electrolysis voltage of the water from the DC power supply via the constant current resistor. first and second switching circuits that alternately apply voltage, a switching flip-flop circuit that alternately applies switching commands to the first and second switching circuits, and generates a reference voltage that is less than the electrolysis voltage of the water. A reference voltage source compares the DC voltage applied between the electrodes with the reference voltage of the reference voltage source, and when the former voltage is equal to the latter voltage, a switching signal is sent to the switching flip-flop circuit. 2. The water purification device according to claim 1, further comprising: a comparator that outputs .