JP2607772Y2 - Electrode for electrolytic sterilization - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an electrode structure for electrolytically sterilizing water containing fungi.

[0002]

2. Description of the Related Art When electrolytically sterilizing water to be treated containing fungi, in order to increase the chance of contact of the fungi with the electrodes,
A method is adopted in which an electrode is formed substantially porous and water to be treated passes through the electrode.

[0003] However, since the electrolytic sterilization is effectively performed at or near the surface of the electrode, in order to further improve the effect, the electrodes are provided in a plurality of stages, and the electrolytic sterilization is performed for each stage. Preferably.

As an electrode unit, a porous carbon electrode material is sandwiched by metal mesh electrodes, a plurality of steps are provided at intervals by insulating spacers, and a current-carrying electrode is provided facing the other at an outermost gap. By surrounding the periphery of the space in which the electrodes of the plurality of stages are provided with a wall, water to be treated is passed from one of the opposing energizing electrodes to the other, and the energizing electrodes are energized. , Causing a polarization phenomenon in each carbon electrode material, as the water to be treated passes through the electrodes of each stage, is subjected to electrolytic treatment a plurality of times, sterilized without leaving any fungi contained in the water to be treated. It has been developed and is being put to practical use for the sterilization of water to be treated.

However, when contact between the carbon electrode material and the metal mesh electrode cannot be maintained due to the flow pressure of the passage of the water to be treated, the collapse of the carbon electrode material facing the metal mesh electrode is accelerated, It has been found that problems such as mixing of carbon particles into the treated water, and the carbon electrode itself being clogged with the carbon particles, making the passage of water impossible.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide an electrode for electrolytic disinfection which can be used for a long period of time by preventing collapse of a porous water-permeable carbon electrode material. It is intended to be a subject.

[0007]

In order to achieve the above object, an electrode for electrolytic disinfection according to the present invention regulates the spread of a water flow in an electrode for electrolytic disinfection having a large number of water holes through which water to be treated passes. A carbon electrode material provided inside the tubular body, having two surfaces crossing the water flow and having a large number of water holes, a metal having a large number of water holes contacting each of the two surfaces, It is characterized by having an electrical insulator that binds the carbon electrode material and the metal so as to maintain the pressed state.

[0008] The electrode for electrolytic sterilization according to the present invention is:
In an electrode for electrolytic disinfection having a large number of water passage holes through which water to be treated is passed as a water flow, a carbon electrode material provided inside a tubular body for regulating the spread of the water flow and having two surfaces crossing the water flow, A plurality of sets each including a metal mesh electrode provided in close contact with each of the two surfaces; a plurality of sets; an electrical insulator spacer provided between the sets; An electrical insulator spacer provided on both outermost sides of the set, a metal mesh electrode sandwiching the spacer with the outermost pieces of the plurality of sets, and a current-carrying metal electrode connected to the outermost metal mesh electrode; As an electrode unit, and the electrode unit is bound by an electric insulator or via an electric insulator.

[0009]

In the present invention, the electrode for electrolytic disinfection is provided so as to extend over the entire cross section of the flow of the water to be treated so that the water to be treated can pass therethrough. The internal structure of the cylindrical body that regulates the flow of water to be treated flows from one side of the cylindrical body to the other.

The metal in contact with each of the two surfaces of the carbon electrode material is an electrode provided for protecting the carbon electrode material. Like the carbon electrode material, a large number of metals pass through the plate so that water to be treated can pass through. It may be one that has a water hole,
A metal net may be used. And the contact between the carbon electrode material and the metal electrode must be in close contact over the entire surface, and the metal on both sides must not be short-circuited.
In the present invention, the connection is made with an electric insulator so that the above-mentioned close contact is obtained in a pressed state. The bonding includes a method of tying with a thread formed of an insulator and a method of penetrating a resin component and welding both ends.

The reason why the metal net is brought into close contact with the carbon electrode material so as to allow water to flow therethrough is that an adhesive is applied to a plurality of portions of the metal net and adhered to the surface of the carbon electrode material. When the carbon electrode material is pushed and moved by the pressure of the above, the bonded metal net also moves together, so that the metal net does not separate from the carbon electrode material, and therefore, the carbon electrode material facing the metal net. Can be prevented from collapsing.

A metal net having a pair of parallel surfaces and having a large number of water holes in a direction perpendicular to the surfaces, which is in contact with both surfaces of the carbon electrode material, has a size substantially equal to that of the surface of the carbon electrode material. Equally, fixing the periphery of the metal net with an insulator is to prevent both metal nets from being electrically short-circuited to have the same potential and to fix the net to the surface of the carbon electrode material so that the net is pressed and adhered. This means that the carbon electrode material is prevented from collapsing. For example, the insulating resin may be bent and pressed, or an insulating elastic material such as rubber may be interposed. The fixing of the periphery of the metal net with an insulator is not always continuous, but may be divided into a plurality of portions, and the shape may be a clamp shape. The whole thing is bounded by the fact that even if the distance between each electrode changes even at one point due to the pressure of the water flow, the potential of each electrode changes, and as a result, the degree of polarization generated in each carbon electrode material changes. Since the efficiency of electrolytic sterilization is reduced and the carbon electrode material is disintegrated, it is not preferable. By bonding the above-mentioned entirety into one, the distance between the electrodes does not change. The outermost energizing electrode was provided so as to be displaceable so as to follow as the electrode moves under the pressure of the water flow.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings.

FIGS. 1, 2 and 3A are perspective views of an electrode for electrolytic sterilization according to the present invention, and FIG. 3B is a sectional view of the electrode.

In these figures, the electrode for electrolytic disinfection is
The carbon electrode material 2 is sandwiched between the metal mesh electrodes 3A and 3B, and the metal mesh electrodes 3A and 3B
And a state of an electrode set bonded so that the surface of the carbon electrode material 2 adheres closely. As the binding member 11, a plurality of insulating yarns shown in FIG. 1 held from the outside of the metal mesh electrode (11a), and an insulating adhesive shown in FIG. Adhered at the closer part (11b),
There are various configurations such as a configuration in which the outer periphery of the metal mesh electrode shown in FIG. 3 is held by an insulating resin frame (11c).

In this configuration, the flow of the water to be treated mainly passes near the center of the electrode surface rather than the peripheral portion, so that the peripheral portion of the electrode surface can be used for binding as shown in the figure.

FIG. 4 is a cross-sectional view showing an embodiment of an electrode for electrolytic sterilization in which a plurality of electrodes are connected as an electrode unit 30 to one body. Metal net electrodes 3A, 3
B, a plurality of sets are overlapped with each other with an insulating spacer 12 interposed therebetween, and the outermost metal mesh electrodes 10A and 10B and the outermost metal mesh electrodes
A current-carrying electrodes 5A and 5B connected to A and 10B are provided, and as an electrode unit 30, the entire electrode unit is firmly bound by an insulating binding member 11 so that the distance between the individual electrodes does not change. No looseness due to pressure.

In FIG. 4, when water to be treated intervenes, the electrode unit 30 supplies a current to the terminals 6A and 6B from a DC power source to the current-carrying electrodes 5A and 5B. A negative charge is polarized in a portion near the current-carrying electrode 5, and a positive charge is polarized in a portion near the minus current-carrying electrode 5. The metal mesh electrode 3 was provided in close contact with the carbon electrode material 2 in order to prevent the carbon electrode material 2 from collapsing.

FIG. 5 is a cross-sectional view of an embodiment of an electrolytic sterilization tank in which an electrode unit 30 is provided inside the cylindrical body 1 and water to be treated is injected from one of the water passage openings 8 and 9 and flows to the other. is there. In order to bond the electrode unit 30 as one body, an insulating rod 20 is provided through a hole passing through each electrode, and an elastic member 23 having elasticity engaged with a large-diameter portion 22 at the end of the rod 20 and a screw 21 This is an embodiment in which the tightening is performed.

Next, the process of electrolytic sterilization will be described with reference to FIG.

After accommodating the electrode unit 30 in the cylindrical body 1, the lids 40, 50 are fixed to both ends, and water to be treated is injected into the opening 8 of the lid 40 or through the opening 9 of the lid 50. Discharge to the other. Then, when a DC power supply is connected to the terminal 6 and energized, the energized electrode 5 is energized through the conductor 7 and a voltage is applied between the metal mesh electrodes 10A and 10B at both ends of the electrode unit 30, and the carbon of each electrode set is set. The electrode material 2 is polarized,
A positive charge is induced on one side and a negative charge is induced on the other.

The injected water to be treated enters, for example, from the upper opening 8 and flows through the cylindrical body 1 toward the lower opening 9 to flow out. While the flow of the water to be treated continues, the fungus contained in the treated water passes through the carbon electrode having a large number of through-holes, and the tissue is destroyed and killed by the polarized positive charges.

Since the flow of the water to be treated is a pore when passing through the electrode unit 30, the flow resistance is large and generates a force for pushing the electrode unit or each electrode set in the flow direction. Even if the distance between the electrode sets is changed by pushing, or the distance between the metal mesh electrodes 10A, 10B at both ends and the electrode sets is changed, a desired potential distribution is not generated in each electrode set. Since the desired polarization does not occur, the electrolytic sterilization ability is undesirably reduced.

However, when the electrode unit 30 is supported in the cylindrical body 1 so as to be movable in the vertical direction, the electrode unit 30 moves as a result of the flow pressure because the entire electrode unit 30 is connected as described above. Following the movement, the current-carrying electrodes 5A and 5B also move, so that the desired polarization is obtained without changing the distance between the electrodes.

As a structure for the energizing electrodes 5A and 5B to follow, a spring material is used at the connecting portion between the conductor 7 and the terminals 6A and 6B, and the conductor 7 is moved in accordance with the movement of the electrode unit 30.
Can be displaced, and the terminals 6A and 6B can be formed of elastically deformable thin plates.

[0026]

According to the present invention, since the distance between the carbon electrode material and the metal mesh electrode does not fluctuate due to the water flow, the carbon electrode material does not disintegrate for a long time. Can be used.

Further, since the entire electrode unit is integrally bonded, the interval between the electrodes does not change, and the desired polarization can be maintained in each carbon electrode material, so that the sterilizing ability can be stabilized.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electrode set according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the electrode set.

FIG. 3 is a perspective view and a sectional view showing still another embodiment of the electrode set.

FIG. 4 is a sectional view of an electrode unit.

FIG. 5 is a sectional view of an electrolytic sterilization tank.

[Description of Signs] 1 Cylindrical body 2 Carbon electrode material 3A, 3B Metal mesh electrode 5A, 5B Conducting electrode 6A, 6B Terminal 7 Conductor 8, 9 Opening 10 Metal mesh electrode 11, 11a, 11b, 11c Binding member 12 Spacer 20 Rod 21 Screw 23 Elastic member 30 Electrode unit 40, 50 Lid

Continuation of the front page (56) References JP-A-4-118090 (JP, A) JP-A-4-27491 (JP, A) JP-A-4-27490 (JP, A) JP-A-4-18982 (JP) JP-A-4-27489 (JP, A) JP-A-4-18981 (JP, A) JP-A-4-18980 (JP, A) JP-A-3-224687 (JP, A) JP-A-3-224686 (JP, A) JP-A-3-224685 (JP, A) JP-A-3-224684 (JP, A) JP-A-3-224683 (JP, A) JP-A-3-224682 (JP, A A) JP-A-4-114787 (JP, A) JP-A-4-114786 (JP, A) JP-A-4-114785 (JP, A) JP-A-4-78486 (JP, A) JP-A-4 JP-16286 (JP, A) JP-A-4-16285 (JP, A) JP-A-4-16283 (JP, A) JP-A-4-16282 (JP, A) JP-A-4-16281 (JP, A) JP-A-4-16280 (JP, A) JP-A-3-293088 (JP, A) JP-A-3-224681 (J JP-A-6-55177 (JP, A) JP-A-6-7778 (JP, A) JP-A-5-337471 (JP, A) JP-A-5-329483 (JP, A) JP-A-4-219194 (JP, A) JP-A-4-210290 (JP, A) JP-A-6-55178 (JP, A) JP-A-5-309362 (JP, A) JP-A-5-212381 (JP, A A) JP-A-5-200387 (JP, A) JP-A-4-219193 (JP, A) JP-A-4-219192 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) ) C02F 1/46 C25B 11/12

Claims (5)

(57) [Scope of request for utility model registration] 1. An electrode for electrolytic disinfection having a large number of water holes through which water to be treated is passed as a water flow, the electrode being provided inside a tubular body for regulating the spread of the water flow, and having two surfaces crossing the water flow. And a carbon electrode material having a large number of water holes, a metal having a large number of water holes contacting each of the two surfaces, and an electricity binding the carbon electrode material and the metal so as to maintain a pressed state. An electrode for electrolytic sterilization, comprising: an insulator. 2. The electrolytic sterilization according to claim 1, wherein the electrode is two metal nets, and the carbon electrode material is sandwiched between the two metal nets and bound by the electric insulator. Electrodes. 3. The carbon electrode material has a pair of parallel surfaces and a large number of water holes in a direction perpendicular to the surfaces, and the metal electrode allows water to flow through the respective surfaces of the carbon electrode material. The electrode for electrolytic sterilization according to claim 1, wherein the electrode is adhered as much as possible. 4. The carbon electrode material has a pair of parallel surfaces and a number of water holes in a direction perpendicular to the surfaces, and the metal contacts the respective surfaces of the carbon electrode material. ,
The electrode for electrolytic sterilization according to claim 1 or 2, wherein the metal is fixed around the metal with the electric insulator so that the metal presses the respective surfaces of the carbon electrode material. 5. An electrode for electrolytic disinfection having a large number of water holes through which water to be treated passes as a water flow, wherein the carbon is provided inside a tubular body for regulating the spread of the water flow, and has two surfaces crossing the water flow. A plurality of sets each including: an electrode material; a metal mesh electrode provided in close contact with each of the two surfaces; and an electrical insulator provided between the sets. A spacer, a spacer of an electrical insulator provided on both outermost sides of the plurality of sets, a metal mesh electrode sandwiching the spacer with the outermost pieces of the plurality of sets, and connected to the outermost metal mesh electrode An electrode for electrolytic sterilization, comprising: a current-carrying metal electrode as an electrode unit; and bonding the electrode unit with an electric insulator or via an electric insulator.