JP2011050840A - Electrode cleaning method for water treatment apparatus and water treatment apparatus, and humidifier using the water treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate cleaning in a water treatment apparatus used for equipment like a humidifier using water. <P>SOLUTION: The water treatment apparatus 11 includes a treatment tank 13 storing treating object water 12, a pair or more of scale deposition electrodes 14 and reference electrodes 15 immersed in the treating object water 12 in the treatment tank 13, and the water treatment apparatus 11 has configuration wherein the scale deposition electrodes 14 are cleaned when attached or detached to/from the treatment tank 13, thereby obtaining the electrode cleaning method for the water treatment apparatus easily removing scale attached to the surface of the scale deposition electrodes 14, the water treatment apparatus having that effect and the humidifier using the water treatment apparatus. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a water treatment device used for equipment using water such as a humidifier.

  Conventionally, this type of water treatment apparatus uses an electrodialysis mechanism (for example, see Patent Document 1).

  Hereinafter, the water treatment apparatus will be described with reference to FIG.

  As shown in FIG. 7, an anode 102 and a cathode 103 are provided inside the water tank 101, and a plurality of cation exchange membranes 104 and anion exchange membranes 105, which also serve as partition walls, are alternately arranged between the water tank 101 and the water tank 101. It constitutes an electrodialysis mechanism. Thereby, the to-be-processed water 106 is purified by electrodialysis.

  In addition, this type of water treatment apparatus includes an electrode surface made of conductive ceramics (see, for example, Patent Document 2).

  Hereinafter, the water treatment apparatus will be described with reference to FIG.

  As shown in FIG. 8, the water treatment apparatus 201 includes a treatment tank main body 203 that divides a treatment space in which treated water 202 is stored or passed, and at least a part of the treatment space is disposed in the treatment space. It has a pair of processing electrodes composed of an anode 204 and a cathode 205 immersed in water 202, and voltage applying means 206 for applying a voltage to the pair of processing electrodes, and at least one of the pair of electrodes is a surface. Is formed of conductive ceramics.

Japanese Patent Laid-Open No. 6-129677 JP 2009-106925 A

  In such a conventional water treatment apparatus, when deposits are deposited on the electrode surface, the conductivity is gradually lowered, and therefore the scale must be removed. However, since the electrode is fixed to the apparatus, it is difficult to remove the scale attached to the electrode surface, and it has been desired to easily remove them.

  Therefore, the present invention solves the above-described conventional problems, and provides an electrode cleaning method and a water treatment apparatus using the electrode cleaning method that can easily remove scales attached to the electrode surface by attaching and detaching the electrodes. The purpose is to do.

  In order to achieve this object, the present invention comprises a pair of or more scale deposition electrodes and a control electrode immersed in the water to be treated, and the scale deposition electrodes are cleaned at the time of attachment / detachment. Yes, and this achieves the intended purpose.

  According to the present invention, a pair of one or more scale deposition electrodes and a reference electrode immersed in the water to be treated are provided, and the scale deposition electrode is cleaned at the time of attachment / detachment. Since the deposits attached to the surface can be removed, the effect of easily removing the scale attached to the electrode surface can be obtained.

Schematic sectional view of a water treatment apparatus according to Embodiment 1 of the present invention Schematic sectional view of a water treatment apparatus according to Embodiment 2 of the present invention Same perspective view Schematic sectional view of an electrode according to Embodiment 3 of the present invention Schematic perspective view of the electrode of Embodiment 4 of the present invention Schematic sectional view of a humidifier according to Embodiment 5 of the present invention Schematic sectional view showing a conventional water treatment device Same sectional view

  The electrode cleaning method for a water treatment apparatus according to claim 1 of the present invention comprises a pair of scale deposition electrodes and a reference electrode immersed in water to be treated, wherein the scale deposition electrodes are cleaned at the time of attachment / detachment. To do. Thereby, it is not necessary to perform the operation | work which removes the scale adhering to the electrode surface, after attaching / detaching a scale deposition electrode, and the effect that the scale adhering to the electrode surface can be removed easily can be acquired.

  Moreover, the water treatment apparatus according to claim 2 of the present invention includes a treatment tank for storing the water to be treated, and a pair of scale deposition electrodes and a reference electrode immersed in the water to be treated therein, and the scale deposition. The electrode is cleaned at the time of attachment / detachment from the treatment tank. This eliminates the need to remove the scale adhering to the electrode surface after the scale deposition electrode has been attached / detached, making it possible to easily remove the scale adhering to the electrode surface, eliminating the need for cleaning work. Obtainable.

  Moreover, the electrode cleaning site | part for cleaning a scale deposit electrode and an electrode may contact at the time of attachment or detachment. Thereby, since the scale adhering to the electrode surface can be removed by the operation of attaching and detaching the scale deposition electrode, an effect that the scale adhering to the electrode surface can be easily removed can be obtained. Since the electrode cleaning site is not in contact with the electrode except during attachment / detachment, corrosion of the electrode cleaning site can be prevented.

  Moreover, you may peel the deposit adhering to a scale deposition electrode with a frictional force. Accordingly, even if the scale is firmly attached to the electrode surface by the operation of attaching and detaching the scale deposition electrode, it can be removed, so that the effect of reliably removing the scale attached to the electrode surface can be obtained.

  Further, the scale deposition electrode may be attached / detached above the surface of the water to be treated of the water treatment apparatus. Thus, since the electrode can be attached and detached without causing water leakage, the electrode can be attached and detached even when water is present inside the water treatment apparatus, and the scale attached to the electrode can be removed. be able to.

  Further, the scale deposition electrode may be integrated with a lid for closing the supply port of the water to be treated to the water treatment apparatus. Thereby, when the lid is opened to supply the water to be treated to the water treatment device, the electrode can be washed at the same time, so that the inside of the water treatment device can always be kept clean. . In addition, since the scale removed from the electrode surface is left inside the water treatment apparatus, the scale removed from the outside of the water treatment apparatus does not scatter and can be easily treated and discarded. it can.

  The scale deposition electrode and the reference electrode may be arranged in parallel. Thereby, since the scale can be uniformly attached to the surface of the scale deposition electrode, it is possible to increase the scale processing efficiency with respect to the electrode area. Moreover, since it is sufficient to move in parallel at the time of attachment / detachment, an effect that it is easy to move can be obtained.

  Moreover, the space | interval holding | maintenance part of a scale deposit electrode and a control electrode may be an electrode cleaning site | part. Thereby, the effect that the scale adhering to the electrode surface can be easily removed by the operation of attaching and detaching the scale deposition electrode without particularly providing an electrode cleaning portion can be obtained.

  The scale deposition electrode and the reference electrode may be concentric cylinders. Thereby, since the scale deposition electrode and the reference electrode are necessarily kept at equal intervals, the scale can be uniformly attached to the surface of the scale deposition electrode, and the scale processing efficiency with respect to the electrode area can be increased. In addition, the compressive strength in the cylindrical axis direction is higher than that of the flat plate shape, and the effect that it is difficult to deform can be obtained.

  In addition, a circular electrode cleaning portion may be provided on a concentric circle with the scale deposition electrode and the reference electrode. As a result, the scale deposition electrode, the reference electrode, and the electrode cleaning site are necessarily kept at regular intervals, so that the scale can be uniformly attached to the surface of the scale deposition electrode and the surface can be cleaned uniformly. The effect that can be obtained.

  Further, a screw structure may be provided on the surface of the scale deposition electrode. Thereby, since the operation of attaching / detaching the scale deposition electrode can be performed according to the induction of the screw structure, the scale attached to the electrode surface can be easily scraped off.

  The scale deposition electrode may be a flat plate shape. Thereby, the effect that the cleaning of the surface of a scale deposition electrode becomes easy can be acquired.

  Further, the scale deposition electrode and the reference electrode may be provided on the same surface via an insulating layer. As a result, the distance between the scale deposition electrode and the reference electrode can always be kept constant. It is also easy to change the interval or increase the number.

  According to a fourteenth aspect of the present invention, there is provided a humidifier comprising a humidifier, a water supply tank for supplying humidified water to the humidifier, and a water treatment device. Thereby, the effect that clean humid air is obtained can be acquired.

  Further, the humidifying unit may include at least one means selected from vaporization, room temperature atomization, and heat atomization. Thereby, the effect that clean humid air is obtained can be acquired.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the water treatment apparatus 11 includes a treatment tank 13 for storing the water to be treated 12, and a pair of scale deposition electrodes 14 and a reference electrode 15 that are immersed in the water to be treated 12 therein. The scale deposition electrode 14 is cleaned when being detached from the treatment tank 13. The scale deposition electrode 14 and the electrode cleaning protrusion 16 come into contact with each other when the electrode is attached and detached, and the deposit attached to the scale deposition electrode 14 can be peeled off by the frictional force. The electrode cleaning protrusion 16 is arranged in a slit shape along the flat electrode.

  Further, the scale deposition electrode 14 and the reference electrode 15 are arranged in parallel, and an electrode cleaning protrusion 16 is provided on the surface of the interval holding portion 17 for holding the interval between these electrodes.

  The scale deposition electrode 14 and the reference electrode 15 are fixed to the lid 18 of the water treatment apparatus 11, and can be attached and detached simultaneously by attaching and detaching the lid 18. Further, the lid 18 is provided with a contact point 19 for applying a voltage to the scale deposition electrode 14 and the reference electrode 15. In addition, water supply to the water treatment device 11 and water removal of the scale-removed water are performed from the water supply port / water sampling port 20. The direction of the water treatment device is set so that the water supply port / water sampling port 20 is positioned above the water treatment device 11 during water supply, and the water supply port / water sampling port 20 is positioned below the water treatment device 11 during water sampling. By using it while reversing it, it is possible to obtain the effects of preventing water leakage and facilitating water supply and water sampling.

  According to such a configuration, the scale depositing electrode 14 and the reference electrode 15 are brought into contact with the electrode cleaning protrusion 16 by the operation of attaching and detaching the lid 18, and are adhered to the surface of the scale depositing electrode 14 by the frictional force generated at that time. Can remove the scale. Thereby, the effect that the scale adhering to the surface of the scale deposition electrode 14 can be removed easily can be acquired. By using an embossed shape, a brush shape, a plate shape or the like as the electrode cleaning protrusion 16, the scale can be removed more easily. These may be used in combination.

  The material for the scale deposition electrode 14 and the reference electrode 15 may be any material having conductivity. Metal, carbon, conductive ceramics and composite materials thereof can be used, but when water treatment is performed, voltage is applied and electron movement occurs, so by selecting a material with a low ionization tendency as a material, It is possible to ensure a long life of the electrode. For example, metal titanium, platinum, or graphite may be used as an electrode material as it is, or those obtained by coating them on the surface of an inexpensive electrode base material may be used.

  Further, if two or more pairs of the scale deposition electrode 14 and the reference electrode 15 are provided, the scale removal effect is further enhanced. Even in that case, since the scale deposition electrode 14 is cleaned simultaneously with the attachment and detachment, the cleaning process does not increase with respect to the case of a pair of electrodes and can be easily performed, so that a high user benefit can be obtained. There are no particular restrictions on the number of electrodes. What is necessary is just to ensure the area which can be processed with respect to the required amount of water and the scale component in water.

  The size of the electrode is not particularly limited. What is necessary is just to ensure the area which can be processed with respect to the required amount of water and the scale component in water. In the case of a flat electrode, the thickness is not particularly limited, and any thickness can be used as long as the shape can be maintained without causing warpage or distortion in the water treatment apparatus 11.

  If the arrangement interval between the scale deposition electrode 14 and the reference electrode 15 is close, current can easily flow between the electrodes, and the scale processing efficiency can be increased. It is preferable that the interval be approached while ensuring a sufficient interval to arrange the electrode cleaning protrusions 16.

  The electrodes to be attached / detached are not necessarily both the scale deposition electrode 14 and the reference electrode 15, and the reference electrode 15 may be fixed to the apparatus and only the scale deposition electrode 14 may be attached / detached.

  Moreover, since the scale deposition electrode 14 and the reference electrode 15 are arranged in parallel, the scale can be uniformly attached to the surface of the scale deposition electrode 14, so that the scale processing efficiency with respect to the electrode area can be increased.

  Furthermore, since the space | interval holding | maintenance part 17 for hold | maintaining the space | interval of these scale deposition electrodes 14 and the reference | standard electrode 15 serves as the electrode cleaning protrusion 16, a water treatment apparatus can be simplified.

(Embodiment 2)
As shown in FIGS. 2 and 3, the pair of scale deposition electrodes 22 and the reference electrode 23 in the water treatment device 21 are concentric cylinders, and electrode cleaning is performed on the concentric circle so as to surround the scale deposition electrodes 22. A circular brush is provided as the region 24. A water tank 25 serving as a treatment tank for storing the water to be treated is integrated with the reference electrode 23 and the electrode cleaning part 24, and includes a supply port 26 for supplying the water to be treated to the water tank 25. A lid 27 for closing the supply port 26 of the water to be treated is integrated with the scale deposition electrode 22 and can be attached and detached simultaneously with the attachment and detachment of the lid 27. Purified water can be collected from the water sampling port 28, and voltage application to the electrodes is performed from the contacts 29.

  According to such a configuration, since the scale deposition electrode 22 and the reference electrode 23 are necessarily kept at equal intervals, the scale can be uniformly attached to the surface of the scale deposition electrode 22, and the scale relative to the electrode area can be obtained. Processing efficiency can be increased.

  Furthermore, if the electrode cleaning part 24 is also circular and arranged so as to be in contact with the same surface of the scale deposition electrode 22, the effect that the surface of the scale deposition electrode 22 can be uniformly cleaned can be obtained.

  Further, since the scale deposition electrode 22 is cleaned simultaneously with the attachment / detachment of the lid 27, the scale removed from the surface of the scale deposition electrode 22 is left inside the water treatment device 21. At this time, the supply port 26 is opened by removing the lid 27, and the removed scale can be easily discarded from the supply port 26. Further, when supplying the water to be treated to the water treatment device 21, if the inside of the water treatment device 21 is rinsed with water, the inside of the device can also be cleaned, and not only the scale deposition electrode 22 and the reference electrode 23 but also the water treatment device 21 can be cleaned. It can be kept clean.

  Furthermore, if the scale deposition electrode 22 is integral with the lid 27 and the joint between the lid 27 and the water tank 25 is provided above the surface of the water to be treated, the scale deposition electrode 22 can be attached and detached without causing water leakage. Even when water is present inside the water treatment device 21, the effect of removing the scale attached to the scale deposition electrode 22 can be obtained. In order to attach and detach the scale deposition electrode 22 above the surface of the water to be treated, a detachable portion for the scale deposition electrode 22 may be provided separately from the supply port 26 of the water to be treated.

(Embodiment 3)
FIG. 4 shows the surface of the scale deposition electrode 31 and the reference electrode 32 provided with screw structures.

  According to such a configuration, since the operation of attaching / detaching the scale deposition electrode 31 can be performed according to the induction of the screw structure, the scale attached to the surface of the scale deposition electrode 31 can be easily scraped off.

  At this time, the attaching / detaching portion 33 of the scale deposition electrode 31 and the reference electrode 32 is preferably a screw receiving structure. At this time, the scale removed from the surface of the scale deposition electrode 31 remains in the attaching / detaching portion 33, but can be easily discarded if it is rinsed with water.

  In addition to the screw structure, the same effect can be obtained even if the scale can be removed by rotating.

  The electrodes to be attached / detached are not necessarily both the scale deposition electrode 31 and the reference electrode 32. The reference electrode 32 may be fixed to the apparatus, and only the scale deposition electrode 31 may be attached / detached. Moreover, you may enable it to attach or detach each independently.

(Embodiment 4)
In FIG. 5, a plurality of electrodes have a flat plate shape. By providing the scale deposition electrode 41 and the reference electrode 42 via the resin film 43 as an insulating layer on the same plane, the scale deposition electrode 41 and the reference electrode 42 are simultaneously provided in one flat plate. .

  According to such a configuration, since the scale deposition electrode 41 and the reference electrode 42 have a flat plate shape, it is possible to obtain an effect that the surface of the scale deposition electrode 41 can be easily cleaned.

  Further, by providing the scale deposition electrode 41 and the reference electrode 42 on the same plane with an insulating layer interposed therebetween, if the scale deposition electrode 41 and the reference electrode 42 are simultaneously provided in one flat plate, Since the concentration gradient of the scale component inside the processing apparatus can be reduced, the scale processing efficiency with respect to the electrode area can be increased. It is also easy to change the interval or increase the number.

  As a method for providing the scale deposition electrode 41 and the reference electrode 42 on the same plane through the insulating layer, for example, the scale deposition electrode 41 and the reference electrode 42 made of metal foil are obtained by bonding them with a resin film 43. Can do. By applying a voltage to the adhered scale deposition electrode 41 and the reference electrode 42, the scale can be deposited.

(Embodiment 5)
As shown in FIG. 6, the humidifying device 51 includes a vaporizing filter 52 as a humidifying unit, a blowing unit 53 for sending air to the vaporizing filter 52, and a water treatment device for supplying humidified water 54 to the vaporizing filter 52. 55. The water whose scale has been removed in the water treatment device 55 is supplied to the vaporizing filter 52 via the water sampling port 56, and is moistened by sending air to the wet vaporizing filter 52 by the blowing means 53. It is a mechanism that can obtain air.

  According to such a structure, since it can always humidify using the water from which the scale was fully removed, the effect that clean humid air is obtained can be acquired.

  The humidifying unit is not limited to the vaporizing means by the vaporizing filter 52 and the air blowing means 53, but a room temperature atomizing means using an ultrasonic vibrator or a nozzle, or an evaporation atomizing means that humidifies by providing a heater for heating in water is used. May be. Regardless of which humidification means is used, it is possible to always humidify using water from which scale has been sufficiently removed by using the water treatment device 55 in which the scale deposition electrode is cleaned each time the electrode is attached or detached. Therefore, the effect that clean humid air can be obtained can be obtained.

  The electrode cleaning method and the water treatment apparatus according to the present invention enable easy removal of the scale attached to the electrode surface by attaching and detaching the electrode, and are used for a device using water such as a humidifier. It is useful as a water treatment device.

DESCRIPTION OF SYMBOLS 11 Water treatment apparatus 12 Treated water 13 Treatment tank 14 Scale deposition electrode 15 Control electrode 16 Electrode cleaning protrusion 17 Space | interval holding | maintenance part 18 Lid 19 Contact 20 Water supply inlet / water sampling port 21 Water treatment apparatus 22 Scale deposition electrode 23 Control electrode 24 Electrode Cleaning part 25 Water tank 26 Supply port 27 Lid 28 Water sampling port 29 Contact 31 Scale deposition electrode 32 Control electrode 33 Detachable part 41 Scale deposition electrode 42 Control electrode 43 Resin film 51 Humidifier
52 Vaporizing filter 53 Blowing means 54 Humidified water 55 Water treatment device 56 Water sampling port 101 Water tank
DESCRIPTION OF SYMBOLS 102 Anode 103 Cathode 104 Cation exchange membrane 105 Anion exchange membrane 106 Water to be treated 201 Water treatment apparatus 202 Water to be treated 203 Treatment tank main body 204 Anode 205 Cathode 206 Voltage application means

Claims (15)

An electrode cleaning method for a water treatment apparatus, comprising a pair of or more scale deposition electrodes and a reference electrode immersed in water to be treated, wherein the scale deposition electrodes are cleaned at the time of attachment / detachment. A treatment tank for storing the water to be treated, and a pair of scale deposition electrodes and a reference electrode immersed in the water to be treated therein, wherein the scale deposition electrodes are cleaned when being detached from the treatment tank. Water treatment equipment. The water treatment apparatus according to claim 2, wherein the scale deposition electrode and an electrode cleaning part for cleaning the electrode are in contact with each other at the time of attachment / detachment. The water treatment apparatus according to any one of claims 2 to 3, wherein the deposit attached to the scale deposition electrode is peeled off by a frictional force. The water treatment apparatus according to any one of claims 2 to 4, wherein the scale deposition electrode is attached and detached at a position above the water surface of the water to be treated of the water treatment apparatus. The water treatment apparatus according to any one of claims 2 to 5, wherein the scale deposition electrode is integrated with a lid for closing a supply port of water to be treated to the water treatment apparatus. The water treatment apparatus according to claim 2, wherein the scale deposition electrode and the reference electrode are arranged in parallel. The water treatment device according to any one of claims 2 to 7, wherein the interval holding portion between the scale deposition electrode and the reference electrode is an electrode cleaning portion. The water treatment apparatus according to any one of claims 2 to 8, wherein the scale deposition electrode and the reference electrode are concentric cylinders. The water treatment apparatus according to claim 9, wherein the circular electrode cleaning part is provided concentrically with the scale deposition electrode and the reference electrode. The water treatment apparatus according to any one of claims 2 to 10, wherein a screw structure is provided on a surface of the scale deposition electrode. The water treatment apparatus according to any one of claims 2 to 8, wherein the scale deposition electrode has a flat plate shape. The water treatment apparatus according to any one of claims 2 to 12, wherein the scale deposition electrode and the reference electrode are provided on the same surface via an insulating layer. A humidifier comprising a humidifier, a water supply tank for supplying humidified water to the humidifier, and the water treatment device according to any one of claims 2 to 13. The humidifying device according to claim 14, wherein the humidifying unit includes at least one means selected from vaporization, room temperature atomization, and heating atomization.

Images