JP2001219171A - Water cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the adhesion of scale to the surface of an electrode in a water cleaning apparatus forming a metal hydrate by electrolysis and forming flocs of a suspended substance by the flocculating action of this metal hydrate to clean water. SOLUTION: This water cleaning apparatus has a circulating means 16, a flocculation means 17 constituted of an anode 25 and a cathode 24 provided in a circulating channel and a filter means 20 provided on the downstream side of the flocculation means 17 and a current is supplied to a piezoelectric element (electromechanical conversion element) 32 to generate vibration. By this constitution, the adhesion of aluminum hydroxide generated at a time of electrolysis to the surfaces of the electrodes can be prevented and aluminum hydroxide formed by electrolysis is more effectively utilized in cleaning and cleaning capacity is enhanced to be well kept over a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification apparatus for removing and purifying suspended substances contained in water to be purified, such as bath water, and more particularly to a metal hydrate produced by electrolysis. The present invention relates to a water purification apparatus for purifying by forming flocculated flocs of suspended substances by the flocculating action of the water purifying apparatus.

[0002]

2. Description of the Related Art As a conventional water purifying apparatus, there is a water purifying apparatus in which microorganisms are propagated on a microorganism carrier, and organic substances are decomposed and purified by the enzymatic activity of the microorganisms (see, for example, Japanese Patent Application Laid-Open No. Hei 5 (1994)).
-293485).

[0003] However, the microbial water purification apparatus has the following problems.

(1) The purification speed is low because the purification is carried out by the enzymatic activity of microorganisms. For this reason, once the bath water becomes polluted by bathing, it takes three hours or more to purify the bath water. Therefore, if the bather takes a bath continuously (for example, every 30 minutes), the bather must bathe in the polluted bath water, and there is a psychological resistance.

[0005] (2) Sterilization in the filtration tank destroys microorganisms that contribute to purification, so that purification ability cannot be obtained. Therefore, it is impossible to sterilize the inside of the filtration tank, which serves as a hotbed for pathogenic bacteria and the like. Therefore, there is a possibility of contamination of bath water bacteria such as Legionella spp.

(3) When a bathing agent is used, the microorganisms are killed, so that the bathing agent cannot be used.

As a solution to these problems, FIG.
As shown in FIG. 13, a water purification apparatus has been proposed in which a metal hydrate is generated by electrolysis, and the diameter of the suspended substance is increased by the coagulation action of the metal hydrate to physically filter the suspended substance (for example, a water purification apparatus). JP-A-8-132051).

In FIG. 1, 1 is a bathtub, 2 is a circulation pump,
Reference numeral 3 denotes an aggregating means, 4 denotes a filtration layer provided downstream of the aggregating means, and 5 denotes a circulation path. Here, the aggregating means 3 comprises an anode 6 made of, for example, aluminum and a cathode 7 made of stainless steel, as shown in FIG.

In the above configuration, when electricity is supplied to the anode 6 and the cathode 7, aluminum ions are eluted from the anode 6 by electrolysis. The aluminum ions, water hydroxide ion OH ^- aluminum reacts with hydroxide Al (OH) ₃ colloid is formed. Here, suspended substances such as sebum / stain and bacteria are negatively charged because they have a carboxyl group in the side chain. On the other hand, since aluminum hydroxide has a positive charge, aluminum hydroxide serves as a binding medium, and a fine suspended substance is adsorbed by the crosslinking action to increase the diameter, so-called aggregated flocs are generated. As a result, the flocculated floc is effectively filtered in the filtration tank 4 provided downstream, and purification in a short time becomes possible. In addition, since no microorganisms are used, the inside of the filtration tank 4 serving as a hotbed of bacteria can be sterilized by, for example, high-temperature sterilization, and a bathing agent can be used.

[0010]

As described above, the coagulation filtration method has a feature that cannot be obtained by the microbial method. However, metal ions (aluminum ions) are eluted by electrolysis to form a metal hydrate ( In the process of producing (aluminum hydroxide), it has been found that aluminum hydroxide gradually remains on the surface of the anode and deposits between the anode and the cathode, thereby reducing the effective utilization rate of aluminum contributing to aggregation.

That is, theoretically, the aluminum ion Al ³⁺ having a high ionization tendency is melted in accordance with the amount of electricity supplied based on Faraday's law, and reacts with hydroxide ion to form aluminum hydroxide and aggregate. Although it is supposed to contribute, aluminum hydroxide and scale components such as Ca, Mg, and Si contained in the bath water actually bind and remain on the anode surface and the cathode surface, and the amount of aluminum that should contribute to aggregation decreases. I understood that.

As a result, as described above, the aluminum ions generated by the electrolysis are not used for 100% coagulation filtration. Also, after long-term use, the space between the anode and the cathode is filled with deposits, and the electric resistance between the electrodes is reduced. And the problem that a predetermined electrolytic current cannot be secured occurs.

[0013]

In order to solve the above-mentioned problems, the present invention has a circulating means and an electrode comprising an anode and a cathode provided in a circulating path. An aggregating means for generating a metal hydrate by decomposition and electrically aggregating the suspended substance contained in the water to be purified, and an aggregating floc provided downstream of the aggregating means and physically generated by the aggregating means. And a vibration means connected to the above-mentioned anode electrode.

That is, even if the aluminum hydroxide produced by the electrolysis attempts to adhere to the electrode surface, the adhesion is prevented by the peeling action due to the shearing force of the vibration of the electrode surface, and the aluminum hydroxide is effectively used for aggregation. In addition, even if it adheres while the vibration is stopped, it can be removed by applying vibration again by the vibration means.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A water purifying apparatus according to a first aspect of the present invention has a water circulating means and an electrode provided in a circulating path and comprising an anode and a cathode. An aggregating means for generating a metal hydrate by decomposition and electrically aggregating a suspended substance contained in bath water, and a flocculant provided downstream of the aggregating means for physically filtering the agglomerated floc generated by the aggregating means It has a vibration generating mechanism composed of a filtering means and an electro-mechanical conversion element fixed to the anode, and prevents the scale generated by the electrolysis from being attached by the vibration generated by the vibration means.

[0016] The water purification apparatus according to claim 2 of the present invention comprises:
By driving the motor fixed to the anode with square wave current, the motor itself vibrates due to cogging torque,
By vibrating the electrode, the aluminum hydroxide is separated from the electrode surface by vibrating the electrode to prevent adhesion of scale generated by electrolysis.

The water purifying apparatus according to claim 3 of the present invention comprises:
The elastic member is fixed to the motor rotation shaft fixed to the anode, and the elastic member rotates when the motor rotates, but strictly speaking, due to molding errors, the elastic body's center of gravity and the rotation center are Do not match, an uneven centrifugal force acts on the elastic body. When the number of rotations of the motor is close to the natural frequency of the elastic body, the elastic body is excited by the centrifugal force described above, and the elastic body causes large vibration. Prevent scale adhesion.

The water purifying apparatus according to claim 4 of the present invention comprises:
An eccentric pulley inserted into a shaft fixed to the anode and a motor driving the eccentric pulley via a belt, the eccentric pulley is rotated by the rotation of the motor, and the shaft into which the eccentric pulley is inserted swings. Vibration is caused by the movement, and aluminum hydroxide prevents the adhesion of scale generated by electrolysis due to the peeling action due to the vibration of the electrode surface.

The water purifying apparatus according to claim 5 of the present invention comprises:
A protrusion is provided on a sliding member fixed to the anode and a motor rotating shaft that is in sliding contact with the sliding member. When the motor rotates, the motor rotating shaft slides on the sliding member, and there is a protrusion. Therefore, the sliding member vibrates at a frequency corresponding to the rotation of the motor due to the bending of the sliding member that occurs when the vehicle crosses the portion, and the adhesion of the scale generated by the electrolysis is prevented by the vibration separating action.

The water purifying apparatus according to claim 6 of the present invention comprises:
An iron core fixed to the anode electrode, wound around the iron core,
It has a vibration generating mechanism consisting of a coil driven by an AC power supply, and by passing an AC current through the coil, the anode terminal is magnetically driven in the magnetic field direction while alternately reversing the direction by the magnetic field generated from the coil. Vibrates to separate aluminum hydroxide from the electrode surface and prevent adhesion of scale generated by electrolysis.

A water purifying apparatus according to a seventh aspect of the present invention has a pair of permanent magnets connected and fixed to an anode and arranged in parallel and whose magnetic poles are opposite in direction. It has a vibration generating mechanism consisting of a control circuit for driving and controlling the electromagnets. In addition, the aluminum hydroxide is peeled off by the vibration peeling action of the electrode surface to prevent the adhesion of scale generated by electrolysis.

[0022] The water purifier according to claim 8 of the present invention comprises:
The moving part switches the linear motor fixed to the anode to the straight driving direction at a high speed, thereby vibrating the electrodes connected to the linear motor, and preventing the adhesion of scale generated by electrolysis due to the peeling action due to the vibration of the electrode surface.

The water purifying apparatus according to claim 9 of the present invention comprises:
It has an electromagnet fixed near the anode and a control circuit to continuously turn on and off the electromagnet. To prevent adhesion of scale generated by electrolysis.

According to a tenth aspect of the present invention, in the water purifying apparatus, a key made of a magnetic material supported by the filtration tank is swung by turning on and off an electromagnet provided in the filtration tank. Vibration is applied to the part to prevent adhesion of scale generated by electrolysis due to the peeling action of the vibration.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a system configuration diagram of a water purification apparatus according to Embodiment 1 of the present invention.

The bathtub 8 is provided with an adapter 12 having a discharge port 10 and a suction port 11 connected to the water purification device 9.

The water purifier 9 is provided with a suction port 11 of the bathtub 8.
A circulation path 15 comprising a return pipe 13 communicating with the discharge port 10 and a discharge pipe 14 communicating with the discharge port 10, circulating means 16 for circulating bath water, and coagulating suspended substances contained in the bath water. Filtration means 17 for reducing the diameter and a filter provided downstream thereof, which is filled with a particulate filter medium 18 made of, for example, an inorganic material such as alumina through a filter bed 19 and filtering the flocculated floc having a large diameter by the flocculation means 17. Means 20, a three-way valve 21a provided upstream of the aggregating means 17 and a three-way valve 21b provided downstream of the filtering means 20, the filtering means 20
The system includes a bypass 22, a discharge 23, and a two-way valve 24 for washing the suspended solids accumulated in the water by passing the water in a direction opposite to that of the ordinary filtration. The aggregating means 17 includes a cathode 24 made of stainless steel and an anode 25 made of aluminum opposed to the cathode 24 and a constant current power supply 26 for applying a voltage between the anode 25 and the cathode 24. .

In the present invention, the aggregating means 17 and the filtering means 2 are used.
0 is integrally contained in the filtration tank 31.

Reference numeral 27 denotes a control means, which controls the coagulation means 17 through a constant current power supply 26 and controls the three-way valves 21a, 22b and the two-way valve 24 to perform backwashing of the filtration means 20. It has a backwash control means 29 and a wash control means 30 for controlling.

At the tip of the anode electrode terminal 25a, a vibration generator 34 composed of a piezoelectric element 32, which is an electro-mechanical conversion element, and a control circuit 33 for the piezoelectric element 32, which is installed in the upper lid of the filtration tank 31, is connected to a vibration generator 34. A generator 34 is fixed via a joint 35.

Next, the operation and operation of this embodiment with the above configuration will be described.

During the time set by the coagulation control means 28, the constant current power supply 26 of the coagulation means 17 operates to operate the cathode 2
A voltage is applied between the anode 4 and the anode 25, and aluminum ions Al ³⁺ are eluted from the anode 25 made of aluminum. The eluted aluminum ions react with hydroxide ions OH ⁻ of water in the gap between the cathode 24 and the anode 25 to become aluminum hydroxide Al (OH) ₃ colloid and float.

Here, the suspended substances such as sebum, dirt and bacteria contained in the bath water are negatively charged because they have a carboxyl group in the side chain. On the other hand, since aluminum hydroxide has a positive charge, the aluminum hydroxide serves as a binding medium, and a fine suspended substance is adsorbed by the crosslinking action to increase the diameter thereof, so-called agglomerated flocs are generated. As a result, the filter medium 1
The coagulated floc is deposited on the surface layer of No. 8 to form a cake layer (coagulated film) having dense pores. By operating the circulating means 16, the bath water circulates along the path shown by the solid line arrow in FIG. Thus, effective water purification can be performed in a short time.

Next, the backwashing operation of the filtering means 20 will be described. The backwash control means 30 operates to operate the three-way valve 21a,
22b and the two-way valve 24 are controlled to flow in the direction indicated by the dashed arrow in FIG.

From the downstream side of the filtering means 20, the suspended matter containing the flocculated floc which has flowed in from the direction opposite to the normal filtration direction and which has accumulated on the surface of the filter medium 18 is backwashed, and
Is discharged through.

As described above, most of the metal hydrate (aluminum hydroxide) produced by the electrolysis forms flocculent flocs and is discharged by backwashing. It remains on the surface and accumulates between the anode and the cathode, and after long-term use, the deposit between the anode and the cathode is filled with deposits, the electric resistance between the electrodes increases, and a predetermined electrolytic current cannot be secured. Therefore, it is necessary to remove the aluminum hydroxide adhered and deposited on the electrode, and the embodiment of the present invention has a vibratory scale removing means.

Next, the operation of the scale removing means will be described.

At the time of energization of the electrolysis, the piezoelectric element expands and contracts and vibrates by applying an alternating current to the piezoelectric element by the control circuit 33 of the piezoelectric element 32, and the vibration is transmitted to the anode 25 through the joint 35. Vibrates the electrode surface.
Since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described electrolysis of aluminum to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 2) Embodiment 2 of the present invention will be described with reference to FIG.

In this embodiment, as shown in FIG. 2, the motor 35 is directly screwed to the extension of the power supply terminal 25a of the anode 25. Further, the control circuit 36 has a control circuit 36 for controlling the driving of the motor 35. When the motor is driven by the rectangular wave current by the control circuit 36, a cogging torque is generated in the motor 35, and the vibration is transmitted to the electrode portion through the power supply terminal 25a. Is done. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the motor 35 is energized by the control circuit 36 in response to a signal from the control means (not shown) of the water purification device circuit, and the anode 25 vibrates.
Vibrates the electrode surface. Since the deposits on the electrode surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 3) Embodiment 3 of the present invention will be described with reference to FIG.

As shown in FIG. 3, a rubber elastic body 38 is inserted and fixed to the rotating shaft of a motor 37 fixed to the anode terminal 25a. The motor 37 is controlled and driven by a control circuit 39.

When the motor 37 is driven to rotate by the control circuit 39, the elastic body 38 is elastic, and when the motor 37 rotates at a predetermined number of revolutions, it resonates to generate self-excited vibration, and the vibration is transmitted to the anode 25. You. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the motor 38 is energized by the control circuit 39 in response to a signal from control means (not shown) of the water purifier circuit, and the anode 25 vibrates. Since the surface of the electrode is vibrated, the adhered substance on the surface is peeled off by the vibration, and the adhesion of the aluminum hydroxide generated by the electrolysis of aluminum to the electrode surface is suppressed, and the aluminum hydroxide is not deposited as a scale.

(Embodiment 4) Embodiment 4 of the present invention will be described with reference to FIG.

As shown in FIG. 4, an eccentric pulley 41 whose rotation center is offset from the shaft center is rotatably supported on a shaft 40 formed at an extension of the anode terminal 25a. On the other hand, a motor 42 is fixed to the upper cover of the filtration tank 31, and a pulley 4
4 and the eccentric pulley 41 are connected by a belt 45. The rotational drive of the motor 42 is controlled and driven by a control circuit 46.

When the motor 42 is driven by the control circuit 46, the eccentric pulley 41 rotates. However, since the axis is eccentric, the tension applied to the belt 45 changes, the shaft 40 vibrates, and the anode 25 The vibration is transmitted to. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the motor 42 is energized by the control circuit 46 according to a signal from the control means (not shown) of the water purification device circuit, and the anode 25 vibrates, so that the electrode surface vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 5) Embodiment 5 of the present invention will be described with reference to FIG.

As shown in FIG. 5, the sliding member 47 provided on the extension of the anode terminal 25a and the rotating shaft 49 of the motor 48 fixed to the upper lid of the filtration tank 31 slide.
It has been transferred. The rotational drive of the motor 48 is controlled and driven by the control circuit 50.

A projection 49a is provided on the rotating shaft of the sliding motor 48. As the motor 48 rotates, the rotating shaft 49 of the motor 48 slides on the sliding member 47. Since there are irregularities on the rotation axis, vibration is generated in the sliding member 47, and the vibration is transmitted to the anode 25. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the motor 48 is energized by the control circuit 50 in response to a signal from the control means (not shown) of the water purification device circuit, and the anode 25 vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 6) Embodiment 6 of the present invention will be described with reference to FIG.

As shown in FIG. 6, an iron core 51 is provided at an extension of the anode terminal 25a. A coil 52 is wound around the core 51, and the coil 52 is fixed with a resin 53 and fixed to the filtration tank 31 side. It has a control circuit 54 for controlling the current flowing through the coil 52. When a current flows through the coil 52, a magnetic force is generated, and the iron core 51 is attracted.

When an alternating current is passed through the coil 52 by the control circuit 54, the magnetic field is reversed, the direction of attraction of the electrode portion is changed, and vibration occurs. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the coil 52 is energized by the control circuit 54 in response to a signal from a control means (not shown) of the water purification device circuit, and the anode 25 vibrates, so that the electrode surface vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

Embodiment 7 Embodiment 7 of the present invention will be described with reference to FIG.

As shown in FIG. 7, a pair of permanent magnets 55a and 55b, which are connected and fixed to the anode terminal 25a via a support member 58, are arranged in parallel, and have opposite magnetic poles, are opposed to the permanent magnet 55. Three electromagnets 56a are provided on the filtration tank 31,
b and c are arranged, and a control circuit 57 for driving and controlling the electromagnet 56 is provided. As shown in FIG. 8, the polarity of the electromagnet is inverted 30 times or more per second by the control circuit 57, and the permanent magnet portion is vibrated right and left. Since the permanent magnet portion is fixed to the anode terminal 25a, its vibration is transmitted to the anode 25. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

At the time of energizing the electrolysis, the control circuit 57 energizes the electromagnet 56 in response to a signal from the control means (not shown) of the water purification apparatus circuit, and the anode 25 vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

Embodiment 8 Embodiment 8 of the present invention will be described with reference to FIG.

As shown in FIG. 9, a fixing portion 59 of a linear motor 58 is fixed to the filtration tank 31, and the operating portion 60 is connected to the anode terminal 25 a via a support 63. In the present invention, a laminated piezoelectric element is used as a drive source of a linear motor in a fixed part, and an AC waveform having a phase difference is applied to the piezoelectric element by driving from a linear motor control circuit 62, thereby making the linear motor fixed part 59 The operating unit 60 in contact with the vibration wave is moved in the vibration wave direction. By changing the phase difference of the current waveform applied to the piezoelectric element 61 by the control circuit 62, the operating section 60 vibrates left and right, and the vibration is transmitted to the anode 25 portion. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, and a description thereof will be omitted.

When the electrolysis is energized, the control circuit 62 energizes the linear motor 58 in response to a signal from the control means (not shown) of the water purification device circuit, and the anode 25 vibrates. Since it vibrates and the adhered substance on the surface is peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 9) Embodiment 9 of the present invention will be described with reference to FIG.

As shown in FIG. 10, the electromagnet 64 is fixed to the filtration tank 31 with the magnetic pole surface close to the anode terminal 25a. The electromagnet 64 has a coil 66 wound around an iron core 65, and an electromagnet 6 that allows current to flow through the coil 66.
4 control circuit 67. The anode terminal 68 is made of a magnetic material, and the control circuit 67 continuously turns on and off the current flowing through the coil 66, so that the electromagnet 64 attracts and cuts off the anode terminal 25a and vibrates.
Vibration is transmitted to the anode 25. Note that the configuration is the same as that of the first embodiment except for the configuration of the generation of vibration, so that the description is omitted.

When the electrolysis is energized, the control circuit 67 energizes the electromagnet 64 in response to a signal from the control means (not shown) of the water purification device circuit, and the anode 25 vibrates, so that the electrode surface vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

(Embodiment 10) Embodiment 10 of the present invention will be described with reference to FIG.

As shown in FIG. 11, a key tap 69 whose one end is supported by the filter tank 31 by a leaf spring-like member made of a magnetic material is provided near the free side end of the key tap 69 and on the side opposite to the anode terminal 25a. An electromagnet 70 including an iron core 71 and a coil 72 fixed to the filtration tank 31 so as to locate the magnetic pole surface, and a control circuit 73 for sending a current to the coil 72 and generating a magnetic force in the electromagnet 70 are provided. Energize the electromagnet 70,
When the power to the electromagnet 70 is turned off after the keying portion 69 is induced, the keying portion 69 collides with the anode terminal 25a by reaction. When the electromagnet 70 is continuously turned on and off by the control circuit 73, the tapping 69 hits the anode 25 to apply vibration. Example 1 except for the configuration for generating vibration
Therefore, the description is omitted.

When the electrolysis is energized, the control circuit 73 energizes the electromagnet 70 in response to a signal from a control means (not shown) of the water purification device circuit, and the anode 25 vibrates. However, since the deposits on the surface are peeled off by the vibration, the adhesion of the aluminum hydroxide generated by the above-described aluminum electrolysis to the electrode surface is suppressed, and the aluminum hydroxide does not become a scale and is not deposited.

[0071]

As described above, according to the water purifying apparatus of the first aspect of the present invention, there is provided a vibration generating mechanism including an electro-mechanical conversion element fixed to an anode, and the electrode generated by the generated vibration. Vibration prevents aluminum hydroxide generated during electrolysis from adhering to the electrode surface and improves the efficiency of aluminum ion generation during electrolysis, so that aluminum hydroxide generated by electrolysis is more effectively used for purification. Purification performance is improved, and good purification performance can be maintained without requiring maintenance for a long time.

According to the water purifying apparatus of the second aspect of the present invention, the motor is fixed to the anode, and the driving current waveform of the motor is a rectangular wave, so that cogging torque occurs when the motor rotates, and the anode vibrates. Let it. By this vibration, aluminum hydroxide generated during electrolysis is prevented from adhering to the electrode surface, aluminum hydroxide generated by electrolysis is more effectively used for purification, and purification performance is improved,
Good purification performance can be maintained over a long period without maintenance.

According to the water purifying apparatus of the third aspect of the present invention, by adding an inertial mass made of an elastic body to the rotating shaft of the motor fixed to the anode, the elastic body is made to respond to the rotation of the motor. A self-excited vibration occurs, and the anode is vibrated.
This vibration prevents aluminum hydroxide generated during electrolysis from adhering to the electrode surface, and the aluminum hydroxide generated by electrolysis is more effectively used for purification, improving purification performance and requiring long-term maintenance. Good purification performance can be maintained. Further, the frequency and the level of the size can be arbitrarily set only by changing the size of the elastic body and the rotation speed of the motor.

According to the water purifying apparatus of the fourth aspect of the present invention, the water purifying apparatus comprises an eccentric pulley inserted into a shaft fixed to the anode and a motor driving the eccentric pulley via a belt. By this, the shaft into which the eccentric pulley is inserted oscillates and vibrates, and the electrodes vibrate, thereby preventing aluminum hydroxide generated during electrolysis from adhering to the electrode surface, and the aluminum hydroxide generated by electrolysis is more It is effectively used for purification and purification performance is improved, and good purification performance can be maintained without maintenance for a long time. Also, since the motor rotation shaft does not directly vibrate, the life of the motor can be extended.

According to the water purifying apparatus of the fifth aspect of the present invention, the sliding member fixed to the anode and the motor rotating shaft slidingly contacting the sliding member are provided with projections, so that the motor rotates. When the motor rotating shaft slides on the sliding member, the protrusion vibrates the sliding member due to the presence of the protrusion, and the electrode vibrates to prevent aluminum hydroxide generated during electrolysis from adhering to the electrode surface. In addition, the aluminum hydroxide generated by the electrolysis is more effectively used for purification, so that the purification performance is improved, and good purification performance can be maintained without requiring maintenance for a long time.

According to the water purifying apparatus of the present invention, there is provided a vibration generating mechanism comprising an iron core fixed to the anode electrode and a coil wound around the iron core and driven by an AC power supply. Then, by passing an alternating current through the coil, the anode terminal is electromagnetically driven, and the electrode vibrates to prevent aluminum hydroxide generated during electrolysis from adhering to the electrode surface, thereby preventing aluminum hydroxide from being generated by electrolysis. Is more effectively used for purification and purification performance is improved, and good purification performance can be maintained without maintenance for a long period of time. In addition, since vibration can be generated in a non-contact manner, there is no wear of the vibration generating portion, and the reliability can be improved.

According to the water purifying apparatus of claim 7 of the present invention, the pair of permanent magnets connected and fixed to the anode and arranged in parallel and having opposite magnetic poles has a pair of opposite permanent magnets. A vibration generating mechanism comprising a control circuit for driving and controlling the electromagnets, with three electromagnets arranged on the tank,
By inverting the polarity of the electromagnet, vibrating the permanent magnet part to the left and right, the electrode vibrates, preventing aluminum hydroxide generated during electrolysis from adhering to the electrode surface, and the aluminum hydroxide generated by electrolysis is more effective It is used for purification, and purification performance is improved, and good purification performance can be maintained without maintenance for a long time.

According to the water purifying apparatus according to the eighth aspect of the present invention, the linear motor whose operating side is fixed to the anode is driven back and forth, so that the electrode vibrates and aluminum hydroxide generated during electrolysis is removed. Adhesion to the electrode surface is prevented, aluminum hydroxide generated by electrolysis is more effectively used for purification, purification performance is improved, and good purification performance can be maintained without requiring maintenance for a long period of time.

Further, according to the water purifying apparatus of the ninth aspect of the present invention, the apparatus has an electromagnet fixed in the vicinity of the anode and a control circuit for continuously turning on and off the electromagnet. , The aluminum hydroxide generated by the electrolysis is more effectively used for purification and the purification performance is improved,
Good purification performance can be maintained over a long period without maintenance.

According to the water purifying apparatus of the tenth aspect of the present invention, by vibrating the tapping supported by the filter tank and turning on and off the electromagnet for inducing the tapping, the tapping of the anode portion by the tapping is performed. To prevent aluminum hydroxide generated during electrolysis from adhering to the electrode surface, aluminum hydroxide generated by electrolysis is more effectively used for purification, purification performance is improved, and maintenance is not required for a long time. Good purification performance can be maintained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a water purification device showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a water purification device showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a water purification device according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a water purification device showing a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram of a water purification device showing a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram of a water purification device showing a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram of a water purification device showing a seventh embodiment of the present invention.

FIG. 8 is a detailed view of a main part of the water purification device.

FIG. 9 is a configuration diagram of a water purification device showing an eighth embodiment of the present invention.

FIG. 10 is a configuration diagram of a water purification device showing a ninth embodiment of the present invention.

FIG. 11 is a configuration diagram of a water purification device showing a tenth embodiment of the present invention.

FIG. 12 is a configuration diagram of a water purification device showing a conventional example of the present invention.

FIG. 13 is a sectional view of the aggregating means of the water purification device.

[Explanation of symbols]

 Reference Signs List 9 water purification device 12 adapter 15 circulation path 16 circulation means 17 coagulation means 20 filtration means 24 cathode 25 anode 28 coagulation control means 29 reverse control means 30 cleaning control means 32 piezoelectric element 34 vibration generator

Continuation of front page (72) Inventor Yu Kawai 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 4D061 DA07 DB05 DB15 EA06 EB04 EB27 EB28 EB33 EB39 EB40 ED20 FA13 FA20 GC11 GC20

Claims (10)

[Claims] 1. A circulating means for water, and an electrode provided in a circulating path and comprising an anode and a cathode, a metal hydrate is generated by electrolysis by energizing the electrode and contained in bath water. Aggregating means for electrically aggregating the suspended substance, a filtering means provided downstream of the aggregating means, for physically filtering the agglomerated floc generated by the aggregating means, and an electric A water purification device having a vibration generating mechanism composed of a mechanical conversion element. 2. The water purification apparatus according to claim 1, further comprising a vibration generating mechanism comprising a motor fixed to the anode and a control circuit for driving the motor with a rectangular wave. 3. The water purifier according to claim 1, further comprising a vibration generating mechanism comprising a motor fixed to the anode and an elastic body fixed to the motor rotating shaft. 4. The water purification apparatus according to claim 1, further comprising a vibration generating mechanism including an eccentric pulley inserted into a shaft provided on the anode and a motor driving the eccentric pulley. 5. The water purifying apparatus according to claim 1, further comprising a vibration generating mechanism comprising a sliding member provided on the anode and a motor having a concave and convex on a rotating shaft slidingly contacting the sliding member. 6. The water purifying apparatus according to claim 1, further comprising a vibration generating mechanism comprising an iron core provided on the anode, a coil wound around the iron core, and a power supply for driving the coil. 7. The water purification apparatus according to claim 1, further comprising a vibration generating mechanism comprising a combination of a plurality of permanent magnets fixed to the anode and arranged in parallel and a plurality of electromagnets facing the permanent magnets. 8. The water purifying apparatus according to claim 1, further comprising a vibration generating mechanism comprising a linear motor having an operating part fixed to an anode. 9. The water purifier according to claim 1, further comprising a vibration generating mechanism comprising an electromagnet fixed near the anode and a control circuit for continuously turning on and off the electromagnet. 10. The water purifying apparatus according to claim 1, further comprising a vibration generating mechanism comprising a keypress supported near the anode, an electromagnet for inducing the keypress, and a control circuit for the electromagnet.