JP4749262B2 - Electrolyzed water generator - Google Patents

Description

  The present invention relates to an electrolyzed water generating apparatus that includes a pair of electrodes and generates electrolyzed water by electrolyzing water to be treated by making the polarities of the electrodes different from each other.

  As for the conventional electrolyzed water production | generation apparatus, as described in Unexamined-Japanese-Patent No. 2004-66078 (patent document 1), the upper end part of the electrode is suspended via the stick | rod, the wire, etc., for example.

As described above, when the electrodes are suspended, the distance between the electrodes cannot be accurately maintained at a uniform distance. By the way, in order to reduce the voltage applied to the electrodes, it is necessary to narrow the distance between the electrodes. If the distance between the electrodes is narrowed, even if the position of the electrodes is slightly shifted, the effect may appear relatively large compared to the case where the distance between the electrodes is wide, and the electrolysis may become unstable. .
JP 2004-66078 A

  The problem to be solved is that when the electrodes are suspended, the distance between the electrodes cannot be maintained accurately and uniformly, and the electrolysis may become unstable.

  The electrolyzed water generating apparatus of the present invention includes at least a pair of electrodes (1), and generates electrolyzed water by electrolyzing the water to be treated (3) with the electrodes having different polarities.

Each electrode includes a plate-like substrate (11) made of a conductive metal and a conductive metal coating layer (12) different from the substrate formed on the lower surface of the substrate. The electrodes on which the layers are formed are arranged side by side so that they face each other, the coating layer is not formed on the upper part of the electrode, and an insulating property is provided between the upper parts of both electrodes. The partition member (23) is provided to partition the upper part of both electrodes, and the electrode includes a submerged part (1a) extending in the front-rear direction and a vertical plate part rising from the rear part of the submerged part. (1b) and a lead wire attaching portion (1c) extending rearward from the upper portion of the vertical plate portion, the coating layer is formed in the submerged portion, and an electrode is formed on the side surface of the partition member. The lead wire mounting part is screwed.

And a submerged part may be immersed in to-be-processed water, and the rear part of the lead wire attaching part of an electrode may be screwed to the partition member.
Furthermore, the lead wire (28) may be attached to the screwing portion (27) for screwing the electrode and the partition member.

  Further, the electrode substrate may be a titanium material, and the coating layer may be a platinum layer such as platinum plating.

  According to the present invention, an insulating partition member is provided between the upper portions of both electrodes to partition the upper portions of both electrodes, and the upper portion of the electrode is screwed to the side surface of the partition member. As a result, the distance between the electrodes can be reduced. As a result, the voltage applied by the electrode can be reduced. In addition, even when the distance between the electrodes is reduced in this way, the distance between the electrodes (particularly, the distance between the lower portions of the electrodes) can be maintained accurately and uniformly. Can be done.

The electrode has a submerged portion extending in the front-rear direction, a vertical plate portion rising from the rear portion of the submerged portion, and a lead wire attaching portion extending rearward from the upper portion of the vertical plate portion. The coating layer is formed in the submerged part, the lead wire attachment part of the electrode is screwed to the partition member, and the submerged part extends in the front-rear direction, so that the depth of the water to be treated is reduced. Along with this, the height of the water tank for storing the water to be treated can be reduced, resulting in compactness.

  And when the submerged part is immersed in the water to be treated and the rear part of the lead wire attachment part of the electrode is screwed to the partition member, the lead wire attachment part extending backward from the upper part of the vertical plate part, The screwing portion can be kept away from the surface of the water to be treated as much as possible, and the screwing portion can be prevented as much as possible from being soiled or becoming defective due to moisture rising from the surface of the water to be treated.

  Further, when the lead wire is attached to the screwing portion for screwing the electrode and the partition member, the lead wire can be fastened together with the electrode, and the attachment work of the electrode and the lead wire is simplified.

  The purpose of maintaining the distance between the electrodes accurately and uniformly and performing the electrolysis stably is to provide an insulating partition member between the upper parts of both electrodes, This was realized by partitioning the space and screwing the upper part of the electrode to the side of the partition member.

  Next, an embodiment of the electrolyzed water generating apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is an exploded exploded perspective view of an electrolyzed water generator according to the present invention. FIG. 2 is a perspective view of the electrolyzed water generating device. FIG. 3 is a side view of the electrolyzed water generating device. FIG. 4 is a bottom view of the electrolyzed water generating device. FIG. 5 is a perspective view of the electrolyzed water generating device viewed from below. In addition, in FIG. 2, the dashed-two dotted line has shown the position of the to-be-processed water stored in the water tank which is not shown in figure. And in FIG. 3, the position of the upper surface of the to-be-processed water stored in the water tank which is not shown in figure is shown with the dashed-two dotted line, and the position of the lower surface is shown with the dashed-dotted line. Further, the positions of the electrodes are indicated by broken lines.

  The electrolyzed water generating device includes a pair of electrolyzed water generating electrodes 1 and a resin cover body 2 that covers the electrodes 1. Each electrode 1 is formed of a plate-like substrate 11 made of a titanium material, which is a conductive metal, and a conductive metal coating layer 12 plated with platinum on one surface of the lower portion of the substrate 11. Each electrode 1 includes a submerged portion 1a extending in the front-rear direction immersed in the water to be treated 3, a vertical plate portion 1b rising from the rear end portion of the submerged portion 1a, and an upper end portion of the vertical plate portion 1b. And a lead wire attaching portion 1c extending rearward. The submerged portion 1a, the vertical plate portion 1b, and the lead wire attaching portion 1c of the electrode 1 are formed of a substrate 11, and a coating layer 12 is formed on one surface of the substrate 11 in the submerged portion 1a of the electrode 1. In addition, through holes 16 and 17 are formed in the front portion and the rear portion of the lead wire attaching portion 1c, respectively.

  The non-conductive or insulating cover body 2 includes a left cover 21, a right cover 22, and a partition member 23 disposed between the left cover 21 and the right cover 22. Each electrode 1 is arrange | positioned on both sides of the partition member 23 so that the film layers 12 may oppose. On both side surfaces of the partition member 23, a protrusion 26 and a screw rod portion 27 for stopping the lead wire attachment portion 1c of the electrode 1 protrude. It is preferable that the screw rod portion 27 with the male screw cut as the screwing portion is made of resin having insulation properties. In addition, although it is also possible to comprise the screw rod part 27 with an electroconductive metal, in that case, the left and right screw rod parts 27 are insulated from each other. Then, the through hole 16 on the front side of the lead wire attachment portion 1 c of the electrode 1 is fitted and fixed to the protrusion 26 of the partition member 23. The through hole 17 on the rear side of the lead wire attaching portion 1c of the electrode 1 is fitted to the screw rod portion 27 of the partition member 23 together with the lead wire 28, and is fixed by a nut 29 in which a female screw is cut. In this manner, the electrode 1 is screwed together with the lead wire 28 to each side surface of the partition member 23. Further, an electrode-type round bar-shaped water level gauge 31 is screwed to the side surface of the partition member 23 together with the lead wires 32. This water level gauge 31 is a DSE (Dimensionary Stable Electrode) electrode and is formed by forming a platinum coating layer such as platinum plating on a titanium round bar. And it couple | bonds in the state which the left and right covers 21 and 22 cover from both sides of the partition member 23 to which the pair of electrodes 1 and the water level gauge 31 are attached, and the electrolyzed water generating device is assembled. In the assembled state, the inner surfaces of the left and right covers 21 and 22 are in close contact with the outer surface of the submerged portion 1a of the electrode 1 (the surface where the coating layer 12 is not formed).

  The left and right covers 21, 22 are formed with a plurality of water passage openings 36 so that water can go back and forth between the inside and the outside of the cover body 2. A water passage opening 37 is also formed on the lower surface of the cover body 2 in which the left and right covers 21 and 22 are joined.

  The lower part of the assembled electrolyzed water generating apparatus is immersed in the water to be treated 3 stored in a water tank (not shown), as shown in FIGS. Then, the to-be-processed water 3 flows into the inside of the cover body 2 through the water flow openings 36 and 37, and the submerged portion 1a of the electrode 1 is immersed in water. Further, the water level of the water to be treated 3 in the water tank is measured by a water level gauge 31. The measurement boundary that can be measured by the water level gauge 31 is shown in FIG. 3, and the generation of electrolyzed water is not performed at water levels below that. A control device (not shown) such as a microcomputer controls the water supply to the water tank so that the water level falls within the range of the electrolyzed water generation water level (the water level that generates electrolyzed water) in FIG. For example, the water supply valve is controlled to open and close. In addition, the maximum height of the range of the electrolyzed water generation water level is substantially the same height as the upper side of the submerged portion 1a of the electrode 1, and the electrolyzed water is generated at a level below that.

In the electrolyzed water generating apparatus configured as described above, electrolyzed water is generated by electrolyzing water to be treated such as tap water as follows.
The lower part of the assembled electrolyzed water generating apparatus is immersed in the water to be treated 3 stored in a water tank (not shown). Then, the water to be treated 3 flows into the cover body 2 through the water passage openings 36 and 37 of the cover body 2. Then, the submerged portion 1 a of the electrode 1 and the lower end portion of the water level gauge 31 are immersed in the water to be treated 3. Next, one electrode 1 is applied to the anode side and the other electrode 1 is applied to the cathode side via the lead wire 28 to electrolyze the water to be treated 3. The water level gauge 31 is applied to the cathode side via the lead wire 28 during the measurement of the water level.

In the vicinity of the anode-side electrode 1, hydroxide ions (OH−) are decomposed, and hydrogen ions (H +) concentration is relatively increased to generate strongly acidic water as electrolyzed water. The chlorine ions (Cl-) once become chlorine gas, and then react with water to produce hypochlorous acid (HClO) as electrolyzed water which is an antibacterial component.
In the vicinity of the electrode 1 on the one cathode side, hydrogen ions (H +) are decomposed into hydrogen gas, and the concentration of hydroxide ions (OH−) is relatively increased to generate alkali ion water as electrolyzed water.

  In this way, electrolyzed water is generated, but scale adheres to the surface of the platinum-plated coating layer 12 of the cathode-side electrode 1. Therefore, a control device (not shown) such as a microcomputer for controlling the polarity applied to the electrode 1 inverts the polarity of the electrode 1 every predetermined time (the anode is the cathode, while the cathode is the anode) The scale adheres to and accumulates on the cathode-side electrode 1. The scale adhering to the coating layer 12 of the electrode 1 tends to go around and adhere to the outer surface of the electrode 1 (the surface on which the coating layer 12 is not formed). Since the inner surface of the cover body 2 is in close contact with the surface, the scale cannot wrap around and adhere to the outer surface of the electrode 1. As a result, scale deposition on the outer surface of the electrode 1 can be prevented as much as possible.

  The pair of plate-like electrodes 1 are arranged with an insulating partition member 23 interposed therebetween, and the upper portion of the electrode 1 is screwed to the side surface of the partition member 23 with a screw rod portion 27. The distance between each other can be reduced, and the upper part of the electrode 1 can be stably fixed to the partition member 23, and the distance between the surfaces on which the coating layer on the lower part of the electrode 1 is formed can be made accurate and uniform. it can. As a result, electrolysis can be performed stably.

As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is performed within the range of the summary of this invention described in the claim. It is possible. Examples of modifications of the present invention are illustrated below.
(1) In the above-described embodiment, the coating layer of the electrode 1 and the water level gauge 31 is platinum plating, but may be another coating layer (for example, a layer coated with a platinum group metal oxide). . It is also possible to fire platinum on the surface of the titanium material of the main body.
(2) Although the coating layer is formed on one side of the electrode, it can also be formed on both sides.

(3) At least a pair of electrodes may be provided. However, in order to make it compact, the electrodes are preferably a pair.
(4) The electrolyzed water produced | generated with an electrolyzed water generating apparatus does not necessarily need to be hypochlorous acid. However, the electrolyzed water generating apparatus of this embodiment is suitable for generating hypochlorous acid.

(5) The cover body does not necessarily need to be provided, but if the cover body covers substantially the entire pair of electrodes, the accidental contact with the outside from the outside is reduced, and safety is ensured. Becomes higher.
(6) If the left and right screw rod portions 27 are made of resin, the left and right screw rod portions 27 may be integrated. For example, the integral left and right screw rod portions 27 are manufactured by insert molding in which the integral left and right screw rod portions 27 are previously set in the molding die of the partition member 23, or the integral left and right screw rod portions 27 are formed in the partition member 23. It can be inserted and fixed. Further, the left and right screw rod portions 27 may be integrated with the partition member 23. However, if it is integrated with the partition member 23, the threading after molding and molding is very difficult and impractical. In addition, if the left and right screw rod portions 27 are made of metal, the left and right screw rod portions 27 must be insulated by the partition member 23, so that the thickness of the partition member 23 increases.

  An insulating partition member is provided between the upper portions of both electrodes to partition the upper portions of both electrodes, and the upper portion of the electrode is screwed to the side surface of the partition member. Electrolysis can be stably performed by maintaining the interval between each other with high accuracy and at a uniform interval. Therefore, it is most suitable to apply to the electrolyzed water generating apparatus that requires a low applied voltage to the electrodes and requires a small distance between the electrodes.

FIG. 1 is an exploded exploded perspective view of an electrolyzed water generator according to the present invention. FIG. 2 is a perspective view of the electrolyzed water generating device. FIG. 3 is a side view of the electrolyzed water generating device. FIG. 4 is a bottom view of the electrolyzed water generating device. FIG. 5 is a perspective view of the electrolyzed water generating device viewed from below.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrode 1a Submerged part 1b Vertical board part 1c Lead wire attaching part 3 Water to be treated 11 Electrode substrate 12 Electrode coating layer 23 Partition member 27 Screw rod part (screw fixing part)
28 Lead wire

Claims (4)

In an electrolyzed water generating apparatus that includes at least a pair of electrodes and generates electrolyzed water by electrolyzing water to be treated by making the polarities of the electrodes different from each other,
Each of the electrodes includes a plate-like substrate made of a conductive metal and a conductive metal coating layer that is different from the substrate formed on the lower surface of the substrate, and the electrode on which the coating layer is formed. Arranged so that the surfaces face each other,
The coating layer is not formed on the upper part of the electrode, and an insulating partition member is provided between the upper parts of the two electrodes to partition the upper parts of the two electrodes,
The electrode has a submerged part extending in the front-rear direction, a vertical plate part rising from the rear part of the submerged part, and a lead wire attaching part extending rearward from the upper part of the vertical plate part. ,
The coating layer is formed on the submerged portion ,
An electrolyzed water generating device characterized in that a lead wire attaching portion of an electrode is screwed to a side surface of the partition member . The submerged part is immersed in the water to be treated,
The electrolyzed water generating apparatus according to claim 1, wherein a rear portion of the lead wire attaching portion of the electrode is screwed to the partition member. The electrolyzed water generating apparatus according to claim 1 or 2, wherein a lead wire is attached to a screwing portion for screwing the electrode and the partition member. The electrode substrate is a titanium material,
4. The electrolyzed water generating apparatus according to claim 1, wherein the coating layer is a layer coated with a platinum group metal oxide such as platinum plating.

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