JP4319288B2 - Device for sterilization of liquid with metal ions - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, an ion generator having a plurality of metal plates is provided in the middle of a flow path for returning water to a water facility such as a bathtub, a pond, a fountain, a pool, and a water tank, and metal ions generated by the ion generator are provided. The present invention relates to an apparatus for sterilizing and algae killing water in a water facility, and more particularly, to a liquid sterilization algae apparatus in which a metal plate in the ion generator is improved.
[0002]
[Prior art]
Conventionally, a metal ion generator having a plurality of metal plates is provided in the middle of a flow path for returning a predetermined amount of water to a water facility such as a bathtub, a pond, a fountain, a pool, or a water tank, and the metal plate is electrolyzed. There is known a sterilizing algaecic device that generates metal ions and sterilizes or kills the water in the water facility using the metal ions, particularly silver ions and copper ions.
This liquid sterilizing algaecic device using metal ions has many advantages such as excellent sterilizing power and algaecidal power, is inexpensive and easy to use, and has been widely adopted in recent years.
[0003]
FIG. 3 is a schematic diagram showing a water circulation system in which such a sterilizing and algae killing apparatus is implemented. Among these, 11 is a water facility such as a pond, a pool, and a water tank, and 12 is a water facility. A water supply source 13 such as a filter, a tank, and a water supply 13 is a flow path that connects the water supply source 12 and the water facility 11 so that a predetermined amount of water flows.
[0004]
Reference numeral 14 denotes a sterilizing and algicidal device provided in the middle of the flow path 13 via various valves 15 (bypass valve 15a and drain valve 15b). The sterilizing and killing device 14 includes an ion generator 16 and a power supply device 17. The ion generator 16 is provided with a metal plate, and the metal plate is electrolyzed to generate metal ions. The power supply device 17 supplies power to the ion generator 16 via the output cable 18 and has functions for controlling the operation time, switching between the anode and the cathode, the amount of electricity, and the like.
The metal ions created by the ion generator 16 are sent to the water facility 11 through the flow path 13, where water is sterilized and killed.
[0005]
4 (A), 4 (B), and 5 show an ion generator used in this type of sterilizing algaecide, and FIG. 4 (A) shows an outline of the appearance of the ion generator. FIG. 4B is a side view, and FIG. 5 is a perspective view of the main part of the ion generator.
In these figures, 1 is a hollow casing with a substantially bottomed short cylinder, 1a is a water inlet provided on one side of the casing 1, and 1b is a water outlet provided on the opposite surface of the inlet 1a. The arrow indicates the direction of water flow. Reference numeral 2 denotes a horizontal plate held horizontally in the casing 1, and the horizontal plate 2 has a plurality of engagement holes 2a. Reference numeral 4 denotes a metal plate, which is mainly formed of copper, silver, or a copper-silver alloy in a rectangular plate shape having a transverse cross section, and has a screw hole 4a formed at the upper end thereof. Then, the screw 3b (lower end side) at one end of the bolt 3 is screwed and attached to the screw hole 4a, while the screw 3a (upper end side) at the other end is attached to the engagement hole 2a of the horizontal plate 2. And the metal plate 4 is suspended from the lower surface of the horizontal plate 2 by tightening with a nut 5 from above the horizontal plate 2. A plurality of metal plates 4 are set as a set, and are arranged so as to face each other at a constant interval.
[0006]
When water flows into the ion generator from the inlet 1a, the water flows between the metal plates 4 and contains metal ions such as silver ions or copper ions generated by electrolysis of the metal plates 4. The water flows out from the discharge port 1b and is sent to the water facility 11 through the flow path, whereby the water in the water facility is sterilized and killed.
[0007]
[Problems to be solved by the invention]
However, most of the metal plates 4 used in the conventional sterilization device for liquid sterilization with metal ions are formed in the shape of a plate as described above, and as shown in FIG. That is, the end surface on the side facing the suction port 1a and the rear end portion 4c, that is, the end surface on the side facing the discharge port 1b are both formed flat, and each corner of the front and rear end portions is formed. The corners are almost perpendicular. Since the metal plate 4 of the conventional example has the shape as described above, the flowing water collides with the flat surface of the front end portion 4b at a right angle when water flows in from the suction port 1a. As shown schematically in FIG. 4, the flow of water splits left and right and swells greatly. First, a large vortex is generated near the front end 4b of the metal plate 4 to decelerate, and then the water flowing on the side 4d side Is affected by the turbulent flow while generating vortices, and also generates vortices immediately after the rear end 4c and acts to prevent an orderly flow. Will occur. As a result, so-called scales (solid deposits such as calcium, silica, and metal powder) 6 are likely to adhere near the side surface portion 4d. In this scale 6, the amount of adhesion of the metal plate 4 to the entire side surface portion 4 d increases as the period of use of the metal plate 4 becomes longer. However, the amount of adhesion of the scale 6 increases to the side surface portion 4 d of the metal plate 4. As the scale layer is formed, the electric resistance increases between the respective metal plates 4, and the current hardly flows. Therefore, the metal plate 4 becomes difficult to dissolve, the generation of metal ions is suppressed, and the sterilizing power of water is reduced. Further, when the scale 6 is attached to the metal plate 4, it is necessary to increase the current value in order to increase the concentration of metal ions in order to enhance the sterilizing and killing power of water. Therefore, it is necessary to adjust the current value, and the work is complicated. Furthermore, in order to stabilize the generation of ions, periodic maintenance for dropping the scale 6 is required, which requires much effort and cost.
[0008]
The present invention has been made in view of such drawbacks, and by reducing the adhesion of the scale to the side surface of the metal plate as much as possible, it stabilizes the generation of metal ions and improves the sterilizing and killing power of water. An object of the present invention is to provide a liquid sterilizing and algae killing apparatus using metal ions that is easy to operate and can reduce the number and cost of maintenance.
[0009]
[Means for Solving the Problems]
In order to achieve the above-described object, the liquid sterilizing and algae killing apparatus using metal ions according to the present invention includes a plurality of units disposed so as to face each other at a predetermined interval in the middle of a flow path for circulating water in a water facility. An ion generator having a sheet of metal plate is provided, the metal plate is electrolyzed with electric power from the power supply unit, and metal ions generated thereby are sent to the water facility through the flow path, and the water facility of the water facility is sterilized. A sterilizing and algae killing apparatus for performing algae, wherein at least one end portion of the metal plate facing in the upstream direction of the flow path is formed in a substantially semicircular cross section.
[0010]
The metal plate may be characterized in that at least one end of the metal plate facing in the upstream direction of the flow path is formed in a substantially V-shaped cross section.
[0011]
Furthermore, it is preferable that the said metal plate forms the both ends of the said metal plate in cross-sectional substantially semicircle shape or cross-sectional substantially V shape.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a main part showing an example of an ion generator 16 used in a liquid sterilizing and algae killing apparatus using metal ions according to the present invention, and a metal plate in the first embodiment, FIG. FIGS. 7A and 7B are perspective views of the metal plate in the second embodiment, FIG. 7 is a diagram showing the top surface or the bottom surface of the metal plate in the first embodiment, and FIG. is there.
In these drawings, the same parts as those in FIGS. 4A, 4B, and 5 are denoted by the same reference numerals. That is, 1 is a casing, 1a is a water inlet, 1b is a water outlet, 2 is a horizontal plate, 3 is a bolt, 3a and 3b are screws provided at both ends of the bolt 3, 4 is a metal plate, 4a is a metal A screw hole of the plate 4, 4 b is a front end portion of the metal plate 4, 4 c is a rear end portion of the metal plate 4, 4 d is a side surface portion of the metal plate 4, and 5 is a nut. Moreover, the arrow has shown the direction through which water flows.
[0013]
The first embodiment of the present invention is mainly shown in FIGS. Here, like the conventional example, the metal plate 4 is mainly formed of copper, silver, or a copper-silver alloy. In the illustrated example, the metal plate 4 is substantially vertically long and has a screw hole 4a formed at the upper end thereof. A plurality of metal plates 4 arranged in the ion generator 16 are set as a set, and are attached so as to be suspended from the lower surface of the horizontal plate 2 so as to face each other at a constant interval. The metal plate 4 is attached to the horizontal plate 2 by screwing the screw 3b (lower end side) of one end of the bolt 3 into the screw hole 4a and attaching the screw 3a (upper end side) of the other end. ) Is inserted into the engagement hole 2a of the horizontal plate 2 and tightened with a nut 5 from the upper side of the horizontal plate 2.
[0014]
In the first embodiment in the illustrated example, the front end portion 4b of the metal plate 4, that is, the end surface of the end portion facing the suction port 1a and the rear end portion 4c, that is, the end portion facing the discharge port 1b. These end surfaces are each formed in a substantially semicircular cross section. FIG. 7 schematically shows the flow of water with streamlines when the metal plate 4 of the first embodiment is disposed in the ion generator 16. As is clear from this figure, as a result of the front end portion 4b of the metal plate 4 having a substantially semicircular cross section, the water flowing from the suction port 1a collides with the front end portion 4b. Without being greatly swollen in the left-right direction, the flow is guided along the curved surface of the front end portion 4b and flows along the side surface portion 4d continuous therewith. That is, the water flowing from the suction port 1a like the metal plate of the conventional example flows regularly and regularly along the side surface portion 4d without generating a vortex in the vicinity of the front end portion 4b. Therefore, the scale 6 is formed on the side surface portion 4d. It becomes difficult to adhere, and scale adhesion to the side surface portion 4d and formation of the scale layer can be greatly suppressed, stable supply of ions is possible for a long period of time, and the number of maintenance work for dropping the scale Can also be greatly reduced.
[0015]
Next, the second embodiment is particularly shown in FIGS. 2A and 2B, in which the front end 4b and the rear end 4c of the metal plate 4 are formed in a substantially V-shaped cross section. However, the other points are the same as in the first embodiment. FIG. 2A shows a case where the V-shaped top portions of the front end portion 4b and the rear end portion 4c and the left and right corners of the V shape form corners. In order to make the flow as smooth as possible along the side surface portion 4d, as shown in FIG. 2B, the top of the V shape and the left and right corners of the V shape are curved to be continuous with the side surface portion 4d. That is, it is desirable to have a round. FIG. 8 schematically shows the flow state of water when the metal plate 4 of the second embodiment is arranged in an ion generator. The second embodiment also shows the first embodiment. The water flow is substantially the same as that of the form, and substantially the same effect can be achieved.
[0016]
In the example shown in both the first and second embodiments, both end portions of the metal plate 4 have a substantially semicircular cross-section or a substantially V-shaped cross-section, respectively, but the water runs along the side surface of the metal plate 4. In order to flow in an orderly manner, the shape of the front end portion 4b facing the direction of the suction port 1a, that is, the upstream direction of the water flow is most important. Therefore, only the front end portion 4b is substantially semicircular in cross section or cross section. You may make it the structure made into a substantially V shape.
In the illustrated example, the overall shape of the metal plate 4 is substantially vertically long. However, the metal plate 4 is not limited thereto, and other shapes such as a rectangle and a triangle are arbitrary.
[0017]
Furthermore, in the first and second embodiments, the surfaces where the metal plates 4 do not face each other, that is, the outer side surfaces of the two metal plates 4 arranged on the outermost sides of the plurality of metal plates 4 are the respective metals. Compared with the side surfaces on which the plates 4 face each other, the scale is likely to adhere. This is because the metal plates 4 are arranged at regular intervals on the side surfaces where the metal plates 4 face each other, so that when the water flows between the metal plates 4, the flow path is narrowed and the flow velocity is reduced. On the other hand, the flow rate is slow on the surfaces where the metal plates 4 are not opposed to each other, and since the electricity does not flow, the surface is not electrolyzed and remains as it is for a long time. However, for example, by arranging a titanium plate or the like (not shown) having corrosion resistance so as to face the outer side surface of the metal plate 4 arranged on the outermost side, the flow velocity can be increased, and Since the outer side surface is also electrolyzed, it is possible to clean up the outer side surface and supply metal ions in the same manner as the side surfaces where the metal plates 4 face each other.
[0018]
【The invention's effect】
According to this invention, generation | occurrence | production of the scale adhering to a metal plate can be suppressed significantly. As a result, the electrical resistance of the metal plates can be reduced, and the current flows smoothly between the metal plates, so that the metal plates can be efficiently electrolyzed and supply metal ions stably, and the water can be sterilized The power can be kept high for a long time.
[0019]
In addition, the stable supply of metal ions makes it unnecessary to adjust the current value, and the handling of the sterilizing and algae killing apparatus becomes extremely simple. Furthermore, since the metal plate dissolves efficiently, the metal plate can be effectively used.
[0020]
In addition, since the scale is greatly reduced, the metal plate can be easily cleaned up by switching the electrode of the metal plate between the anode and the cathode, and the regular maintenance for dropping the scale is greatly reduced. This can reduce the cost.
[0021]
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a main part of an ion generator in a sterilizing and killing apparatus for liquids using metal ions according to the present invention. Here, an example of a metal plate of a first embodiment is shown. ing.
FIG. 2 is a perspective view of a metal plate according to a second embodiment, in which (A) shows a case where the top of the V shape and the left and right corners of the V shape form a corner. (B) shows the case where the top of the V shape and the left and right corners of the V shape form a radius.
FIG. 3 is a schematic view showing a water circulation system in which a liquid sterilizing and algae killing apparatus using metal ions according to the present invention is implemented.
4 (A) is a schematic front view showing an external appearance of an ion generator, and FIG. 4 (B) is a schematic side view of the same.
FIG. 5 is an exploded perspective view of a main part of an ion generator using a conventional metal plate.
FIG. 6 is a view showing a top surface or a bottom surface of a conventional metal plate, and particularly schematically shows a state of water flow in this case.
FIG. 7 is a view showing an upper surface or a bottom surface of a metal plate according to the first embodiment of the present invention, and particularly schematically shows a state of water flow in this case.
FIG. 8 is a diagram showing an upper surface or a bottom surface of a metal plate in a second embodiment of the present invention, and particularly schematically shows a state of water flow in this case.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 1a Intake port 1b Discharge port 2 Horizontal plate 3 Bolt 4 Metal plate 4b Front end part 4c Rear end part 4d Side face part 5 Nut 6 Scale 11 Water facility 12 Water supply source 13 Channel 14 Sterilization algaecide 16 Ion generator 17 Power supply

Claims (4)

An ion generator having a plurality of metal plates arranged so as to face each other at a predetermined interval is provided in the middle of a flow path for circulating water in the water facility, and the metal plates are supplied with electric power from a power supply unit. A sterilization and algaecide device that performs electrolysis and sends out metal ions generated thereby to a water facility through the channel, and performs sterilization and algae killing of water in the water facility, at least in the upstream direction of the channel of the metal plate One of the facing end portions is formed in a substantially semicircular cross-sectional shape. An ion generator having a plurality of metal plates arranged so as to face each other at a predetermined interval is provided in the middle of a flow path for circulating water in the water facility, and the metal plates are supplied with electric power from a power supply unit. A sterilization and algaecide device that performs electrolysis and sends out metal ions generated thereby to a water facility through the channel, and performs sterilization and algae killing of water in the water facility, at least in the upstream direction of the channel of the metal plate One end facing is formed in a substantially V-shaped cross section, and is a liquid sterilizing and algae killing apparatus using metal ions. 2. The liquid sterilizing and algae killing apparatus according to claim 1, wherein both ends of the metal plate are formed in a substantially semicircular cross section. The liquid sterilizing and algae killing apparatus according to claim 2, wherein both ends of the metal plate are formed in a substantially V-shaped cross section.

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