JP2020131109A - Water treatment method and treatment apparatus - Google Patents

Abstract

To provide an efficient reduction of redox potential of the water to be treated in a short period of time with a simple configuration.SOLUTION: The apparatus includes a cylindrical magnet 12 in which a magnetic flux is distributed along a direction perpendicular to the longitudinal axis direction of the cylindrical shape, and a water circulating part 11 in which the cylindrical magnet 12 is accommodated and in which treated water 1 is distributed and passed along the longitudinal axis direction of the cylindrical magnet 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a water treatment method and a treatment apparatus. More specifically, the present invention relates to a water treatment technique suitable for lowering the redox potential of water to be treated such as tap water.

As a conventional method for treating water, at least one pair of permanent magnets having north and south poles facing each other are arranged with the water passage pipes separated, and the water passage pipes are separated at positions facing the magnetic flux between the permanent magnets. A pair of non-magnetic conductive metal plates that face each other and partially conduct with the inside of the water passage pipe are arranged, and the magnetic flux and the electromotive current generated in the direction orthogonal to the direction of the flowing water due to the passage of water through the water passage pipe are generated. Some are guided to a non-magnetic conductive metal plate, which causes electrons to act on the flowing water in the water pipe, and is treated by magnetic flux by a permanent magnet (Patent Document 1).

Japanese Unexamined Patent Publication No. 11-138173

However, in the method of Patent Document 1, the electrode rod is erected on the non-magnetic conductive metal plate, and the electrode rod is fitted into the through hole formed in the water passage pipe to form the non-magnetic conductive metal plate and the water passage pipe. Since the inside is made conductive, there is a problem that it takes time and effort to erect / attach the electrode rod to the non-magnetic conductive metal plate and to form a through hole in the water passage pipe.

Therefore, an object of the present invention is to provide a water treatment method and a treatment apparatus capable of efficiently lowering the redox potential of the water to be treated in a short time even though it has a simple structure.

The present inventor has studied various methods for lowering the redox potential of the water to be treated, and it is possible to efficiently lower the redox potential of the water to be treated by using a cylindrical magnet. I found out.

The water treatment method of the present invention is based on the above-mentioned inventor's own knowledge, and a cylindrical magnet magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder. The water to be treated is circulated along the longitudinal axis direction of the cylindrical magnet through the water flow section to be accommodated.

Further, in the water treatment apparatus of the present invention, a cylindrical magnet magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder, and the cylindrical magnet are housed and cylindrical. It has a water flow section through which the water to be treated flows and passes along the longitudinal axis direction of the shape magnet.

Therefore, according to these water treatment methods and water treatment devices, the redox potential of the water to be treated is lowered in a short time by using the cylindrical magnet.

In the water treatment method and the water treatment device of the present invention, the cylindrical magnet may be housed in the coil and then housed in the water flow section. In this case, since the cylindrical magnet is accommodated in the coil, even if the cylindrical magnet exerts a strong magnetic force, it is prevented from sticking / sticking to the water flow portion or the like.

In the water treatment method and the water treatment apparatus of the present invention, the openings at both ends of the cavity at the axial center position of the cylindrical magnet may be closed. In this case, the inflow of the water to be treated into the cavity of the cylindrical magnet is prevented.

According to the water treatment method and the water treatment apparatus of the present invention, the oxidation-reduction potential of the water to be treated can be efficiently lowered in a short time even though the structure is simple. It becomes possible to improve the versatility of the water, and by extension, the usefulness as a water treatment technology.

In the water treatment method and the water treatment device of the present invention, when the cylindrical magnet is accommodated in the coil, even if the cylindrical magnet exerts a strong magnetic force, it attaches / sticks to the water flow part or the like. This can prevent damage to the cylindrical magnet and water circulation part, and damage to the coating / plating for rust prevention such as the cylindrical magnet and water circulation part. It is possible to prevent the magnet from peeling or rusting, prevent the water to be treated from being contaminated, and prevent the device from deteriorating.

The water treatment method and the water treatment device of the present invention can prevent the inflow of the water to be treated into the cavity of the cylindrical magnet when both ends of the cavity of the cylindrical magnet are closed. Therefore, the water to be treated can be reliably flowed in the direction / plane in which the magnetic flux distribution of the cylindrical magnet is along, and the oxidation-reduction potential of the water to be treated can be lowered more efficiently.

It is an exploded view which shows an example of the Embodiment of the water treatment apparatus which concerns on this invention. It is a vertical sectional view of the water treatment apparatus (assembled state) shown in FIG. It is a figure explaining the example of the magnetizing mode of a cylindrical magnet. FIG. 3A is a schematic view showing the magnetization direction (magnetization direction). FIG. 3B is a schematic diagram showing the magnetic flux distribution. It is a schematic diagram which shows the schematic structure of the mechanism of water treatment in Example 1. FIG.

Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings.

1 to 3 show an example of a water treatment method and an embodiment of a water treatment apparatus according to the present invention.

In the water treatment method of the present embodiment, a cylindrical magnet is formed in a water flow portion 11 that houses a cylindrical magnet 12 magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder. The water to be treated 1 is circulated along the longitudinal axial center direction of 12.

In the water treatment method of the present embodiment, the cylindrical magnet 12 is further housed in the coil 13 and then housed in the water distribution unit 11.

The above water treatment method can be carried out by the water treatment apparatus according to the present invention. The water treatment device 10 of the present embodiment accommodates a cylindrical magnet 12 magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder, and the cylindrical magnet 12. It also has a water flow section 11 through which the water 1 to be treated flows and passes along the longitudinal axis direction of the cylindrical magnet 12.

In the water treatment device 10 of the present embodiment, the cylindrical magnet 12 is further housed in the coil 13 and then housed in the water distribution unit 11.

The cylindrical magnet 12 is a magnet formed in a cylindrical shape. The cylindrical magnet 12 is, for example, a permanent magnet, and specifically, for example, a neodymium magnet, a samarium-cobalt magnet, or a neodymium bond magnet can be used.

The cylindrical magnet 12 is magnetized so that the north and south poles face each other with the longitudinal axis sandwiched in a plan view / cross-sectional view orthogonal to the longitudinal axis direction of the cylindrical magnet 12 (FIG. 3A). The magnetic flux distribution of the cylindrical magnet 12 extends from the peripheral surface (N pole) to the peripheral surface (S pole) of the cylindrical magnet 12 along a plane / cross section orthogonal to the longitudinal axis direction of the cylindrical magnet 12. It becomes a distribution (Fig. 3B). That is, the magnetic flux distribution (also the direction of the magnetic field and the direction of the magnetic field vector) of the cylindrical magnet 12 is along a direction / plane orthogonal to the longitudinal axis direction of the cylindrical magnet 12.

In the cylindrical magnet 12, a plurality of N poles and S poles face each other as a pair with the longitudinal axis sandwiched in a plan view / cross-sectional view orthogonal to the longitudinal axis direction of the cylindrical magnet 12 ( In other words, it may be magnetized so that there are a plurality of combinations of N poles and S poles facing each other). In this case, the magnetic flux distribution of the cylindrical magnet 12 is from the peripheral surface (N pole) to the peripheral surface (S pole) of the cylindrical magnet 12 along a plane / cross section orthogonal to the longitudinal axis direction of the cylindrical magnet 12. There will be multiple distributions leading to. In this case as well, the magnetic flux distribution of the cylindrical magnet 12 (also, the direction of the magnetic field and the direction of the magnetic field vector) is along the direction / plane orthogonal to the longitudinal axis direction of the cylindrical magnet 12.

The coil 13 has a spiral tubular intermediate portion 13a having an accommodation space 13c for accommodating the cylindrical magnet 12.

The cylindrical magnet 12 is placed in the cylindrical intermediate portion 13a of the coil 13 so that the longitudinal axial center direction of the cylindrical magnet 12 is along the longitudinal axial center direction of the coil 13 / accommodating space 13c (that is,). It is housed in the accommodation space 13c).

The material of the tubular intermediate portion 13a of the coil 13 is not limited to a specific type, and an appropriate material is appropriately selected after considering that it can be processed / molded in a spiral shape. Specifically, for example, the tubular intermediate portion 13a of the coil 13 can be formed of metal or resin.

The end portion 13b of the tubular intermediate portion 13a of the coil 13 in the longitudinal axial direction may be formed as an opening end so that the cylindrical magnet 12 can pass through, or the cylindrical magnet 12 cannot pass through. It may be formed in. However, when the end portion 13b of the coil 13 is formed so that the cylindrical magnet 12 cannot pass through, for example, the end portion 13b is not completely blocked by a flat plate-shaped member, but the water to be treated 1 ends. It is formed so that a gap exists so that the portion 13b can flow through.

When the end portion 13b of the coil 13 is formed so that the cylindrical magnet 12 cannot pass through, specifically, for example, the diameter of the spiral shape forming / constituting the tubular intermediate portion 13a is the tubular intermediate portion. It is conceivable that it will be reduced at the end of 13a.

When the cylindrical magnet 12 is housed in the tubular intermediate portion 13a of the coil 13 (that is, the accommodation space 13c), for example, the following effects are exhibited.
A) If the cylindrical magnets 12 exert a strong magnetic force and the cylindrical magnets 12 directly collide with each other, there is a risk of damage such as cracking or chipping of each other. On the other hand, by housing the cylindrical magnet 12 in the coil 13 (in other words, covering it with the coil 13 to protect it), a buffering action is generated, and damage due to the impact of attracting and hitting each other can be prevented.
B) By housing the cylindrical magnet 12 in the coil 13, even if the cylindrical magnet 12 exerts a strong magnetic force, it does not directly attach / stick to the water flow section 11 or the like. Therefore, the cylindrical magnet 12 or water It is possible that the distribution unit 11 or the like is damaged, or the coating film / plating for rust prevention such as the cylindrical magnet 12 or the water distribution unit 11 is damaged and the coating film / plating is peeled off or rust is generated. This prevents the device from deteriorating, which in turn enables long-term operation of the device.
C) By housing the cylindrical magnet 12 in the coil 13, it is possible to prevent the cylindrical magnet 12 from being firmly attracted to the water flow section 11, so that a water treatment method or a water treatment device can be used. It is possible to facilitate the handling of the cylindrical magnet 12 at the time of assembling and to reduce the labor.
D) When the cylindrical magnet 12 is housed in the coil 13 and then housed in the water flow section 11, the coil 13 functions as a spacer, and the cylindrical magnet 12 and the water flow section 11 (as a yoke). Since a gap is formed between the magnet and the magnet 12, the magnetic circuit related to the cylindrical magnet 12 can be appropriately formed.

The water circulation unit 11 is for forming a space (in other words, a flow path) for accommodating the cylindrical magnet 12 and the coil 13 and for circulating the water to be treated 1 such as tap water.

The water flow section 11 is formed of a magnetic material such as stainless steel or low carbon steel into a cylindrical shape having a hollow internal space 11a (in other words, a flow path). The cylindrical magnet 12 and the coil 13 are housed in the internal space 11a, and the water 1 to be treated flows and passes through the internal space 11a.

In the direction of the flow of the water to be treated 1 flowing through the water flow section 11 (that is, the longitudinal axis direction of the cylindrical water flow section 11), the longitudinal axis direction of the cylindrical magnet 12 (also, the cylindrical middle of the coil 13). It is arranged so as to be along the portion 13a / the direction of the longitudinal axis of the accommodation space 13c).

By arranging as described above, the water to be treated 1 flows in the direction / plane along which the magnetic flux distribution (also the direction of the magnetic field and the direction of the magnetic field vector) of the cylindrical magnet 12 is orthogonal.

Based on the mode of the magnetic flux distribution of the cylindrical magnet 12 (see FIG. 3B), the direction along the longitudinal axis direction of the cylindrical magnet 12, in other words, the magnetic flux distribution of the cylindrical magnet 12 (also the direction of the magnetic field and the magnetic field vector). Since the water to be treated 1 flows in the direction along the direction / direction orthogonal to the plane, the longitudinal axis of the cavity 12a is prevented from flowing into the cavity 12a at the axial center position of the cylindrical magnet 12. It is preferable that the openings at both ends in the direction are closed (closing member 12b in the example shown in the figure).

The number of cylindrical magnets 12 accommodated in the water circulation unit 11 is not limited to a specific number, but is the strength of the magnetic field formed (in other words, required) in the water circulation unit 11. The appropriate number is set as appropriate, taking into consideration the above. When a plurality of cylindrical magnets 12 are housed in the water flow section 11, the longitudinal axial center direction of each of the cylindrical magnets 12 is the direction of the flow of the water to be treated 1 flowing through the water flow section 11, that is, It is arranged along the longitudinal axis direction of the cylindrical water flow portion 11.

In order to allow the water 1 to be treated to flow through the magnetic field formed by the cylindrical magnet 12 (in other words, the range in which the magnetic force acts), the strength of the magnetic force formed by the cylindrical magnet 12 is taken into consideration, and the cylinder is cylindrical. The size of the internal space 11a of the water flow portion 11 (preferably a range in which a corresponding strength of the magnetic force can be secured) so as not to greatly exceed the range in which the magnetic force generated from the shape magnet 12 acts. Specifically, the cross-sectional area orthogonal to the longitudinal axis direction) is adjusted. Further, it is also considered that a gap is secured between the water flow section 11 and the cylindrical magnet 12 or the coil 13 so that the flow of the water to be treated 1 passing through the internal space 11a of the water flow section 11 is not significantly obstructed. To.

A magnetic field is formed by arranging the cylindrical magnet 12, and when the water to be treated 1 flows and passes through the internal space 11a of the water flow portion 11 on which the magnetic force acts, the magnetic force (and the magnetic flux density and the water to be treated) The oxidation-reduction potential of the water 1 to be treated is lowered by the action of (current) induced to have a strength proportional to the magnetic flux of 1.

That is, a magnetic field is formed by the cylindrical magnet 12 and the magnetic field lines and electromagnetic waves are emitted by the above-mentioned water treatment method and water treatment device, and the water to be treated 1 is exposed to the magnetic field lines and electromagnetic waves to be treated. Water 1 is negatively ionized to generate hydrogen ion water having a low oxidation-reduction potential.

Here, water molecules are generally two hydrogen ions (H ^-) and one of oxygen ions (O ⁺⁾ consisting of an electrical dipole (i.e., at both ends + charges and - molecular ion mass with a charge) Is. Since various substance ions are present in ordinary water (in other words, water that exists in its natural state without any special treatment), water molecules, cations and water molecules, or anions Can be regarded as a combination of water and water molecules (note that it is called "hydration").

According to Fleming's left-hand rule, as the flow velocity of water increases, the velocity of motion of the ion mass corresponding to the electric current increases, and the interaction with the magnetic field becomes stronger. Therefore, when the rate exceeds a certain level, the hydrated anion mass in the hydrate is separated first and becomes anions and water molecules, and the anions are released into the running water. Since hydrated cations have strong hydration power, most of them are preserved as they are and do not release cations even if the flow velocity increases.

That is, water that has passed through the magnetic field at a certain speed or higher contains many anions. Therefore, the water 1 to be treated, which has been treated by the above-mentioned water treatment method or water treatment device, contains a large amount of negatively charged "anions (negative ions)", has extremely high reducing properties, and is oxidized. The water has a low reduction potential (called "oxidation-reduction ion water").

The magnetic flux density (residual magnetic flux density) in the internal space 11a of the water circulation unit 11 is preferably 300 millitesla (3000 gauss) or more, more preferably 450 millitesla (4500 gauss) or more, and 600 millitesla (6000 gauss) or more. ) Or more, and even more preferably 800 millitesla (8000 gauss) or more.

In the present embodiment, the water distribution unit 11 is stored in the storage unit 14.

The storage unit 14 stores the water distribution unit 11 (including the cylindrical magnet 12 and the coil 13), and allows the water distribution unit 11 and the water flow pipe to communicate with each other to distribute the water 1 to be treated to the water distribution unit 11. It is for passing.

The storage portion 14 has a tubular portion 14a having a hollow portion 14c for storing the water flow portion 11, and connecting portions 14b provided at both ends of the tubular portion 14a in the longitudinal axial direction.

The storage unit 14 may be formed / composed of a single member, may be formed / composed of a plurality of members, and may be formed / composed of members of the same material. Alternatively, it may be formed / composed of members made of different materials. Specifically, for example, the tubular portion 14a and the connecting portion 14b may be formed of a plurality of members made of different materials.

The storage portion 14 may be formed of a magnetic material or may be formed of a non-magnetic material. Specifically, the storage portion 14 may be formed of a metal having magnetism, or may be formed of a material other than a metal having no magnetism or a metal such as a resin.

Of the connecting portions 14b and 14b provided at both ends of the tubular portion 14a of the storage portion 14, one of them is a water pipe for supplying water for flowing the water to be treated 1 into the water flow portion 11 in the hollow portion 14c. 15A is connected and connected, and on the other hand, a discharge water pipe 15B for flowing out the water to be treated 1 which has flowed in from the supply water pipe 15A and passed through the water distribution unit 11 is connected and connected.

In order to allow the water 1 to be treated to flow through the space between the cylindrical magnet 12 and the water flow section 11, the water supply pipe 15A passes through the connecting portion 14b at the end of the tubular portion 14a of the storage section 14. The water to be treated 1 flowing from the water flows into the internal space 11a of the water distribution unit 11 and flows out of the water distribution unit 11 (specifically, the space between the water distribution unit 11 and the storage unit 14, the hollow portion 14c. ) It is preferable not to flow out.

According to the water treatment method and the water treatment apparatus configured as described above, by using the cylindrical magnet 12, the redox potential of the water to be treated 1 can be set in a short time even though the structure is simple. Can be reduced efficiently. Therefore, it becomes possible to improve the versatility as a water treatment technique, and eventually to improve the usefulness as a water treatment technique.

According to the water treatment method and the water treatment device configured as described above, and since the cylindrical magnet 12 is accommodated in the coil 13, the cylindrical magnet 12 exerts a strong magnetic force. Can also be prevented from sticking / sticking to the water distribution unit 11 or the like. For this reason, the cylindrical magnet 12 and the water circulation section 11 are damaged, and the coating film / plating for rust prevention such as the cylindrical magnet 12 and the water circulation section 11 is damaged and the coating film / plating is damaged. By preventing peeling and rusting, it is possible to prevent contamination of the water to be treated and to prevent deterioration of the device.

The redox ionized water, which is the water to be treated 1 that has been treated by the above-mentioned water treatment method or water treatment device, can be used in various fields. Specifically, for example, the following advantages are available. It can be used.
1) Removal of rust and rust prevention of water pipes such as iron pipes and zinc pipes 2) Prevention of corrosion of various materials 3) Elimination of chlorine generated in tanks, etc. 4) Prevention of bacterial growth in domestic water Removal

Although the above-described embodiment is an example of a suitable mode for carrying out the present invention, the embodiment of the present invention is not limited to the above-mentioned one, and the present invention is not limited to the above-mentioned embodiment and does not deviate from the gist of the present invention. The invention can be modified in various ways.

For example, in the above-described embodiment, the cylindrical magnet 12 is housed in the coil 13 and then housed in the water flow unit 11. However, the main point of the present invention is to use the cylindrical magnet 12 to form the cylindrical shape. The water to be treated 1 is allowed to flow in a direction perpendicular to the direction / plane along which the magnetic flux distribution (also the direction of the magnetic field and the direction of the magnetic field vector) of the magnet 12 is aligned, and the cylindrical magnet 12 is housed in the coil 13. It is not an essential configuration in the present invention. Even when the coil 13 is not provided, the use of the cylindrical magnet 12 has an effect that the redox potential of the water to be treated 1 can be efficiently lowered in a short time.

Further, in the above-described embodiment, the water distribution unit 11 is stored in the storage unit 14, but it is not an essential configuration in the present invention that the water distribution unit 11 is stored in the storage unit 14. For example, a structure (for example, the above-described embodiment) in which the water to be treated 1 is circulated and passed through the pipes for water supply and drainage (for example, the supply water pipe 15A and the discharge water pipe 15B in the above-described embodiment). When the water distribution unit 11 itself is provided with the structure corresponding to the connecting portion 14b in the above, the storage portion 14 may not be provided.

An example of water treatment for verifying the action and effect of the water treatment method and the water treatment apparatus according to the present invention will be described with reference to FIG.

In this embodiment, the water treatment was performed using the mechanism shown in FIG. 4, including the water treatment device 10 having the following specifications. The specifications and specifications of each part constituting the water treatment device 10 are as follows.

<Specifications and specifications related to the water distribution department 11>
Material: Thin steel conduit (galvanized)
Shape: Cylindrical Dimensions: Outer diameter 40 mm, inner diameter 36 mm, axial length 400 mm

<Specifications and specifications related to the cylindrical magnet 12>
Type: Neodymium magnet Magnetic flux density: 4500 gauss Dimensions: Outer diameter 15 mm, inner diameter 7 mm, axial length 100 mm
Number: 3 (arranged in series along the longitudinal axis direction of the water flow section 11)

<Specifications and specifications related to coil 13>
Material: SUS304-WPB
Form: Spiral shape, both ends in the longitudinal axis direction are open Dimensions: Outer diameter 30 mm, inner diameter 25 mm, axial length 110 mm

The mechanism shown in FIG. 4 has a water tank 21 and a pump 22 in addition to the above water treatment device 10, and the water 1 to be treated stored in the water tank 21 is treated by the pump 22 at a rate of 70 L / min. It is sent to the device 10. In the water tank 21, 48 L of tap water was stored as the water to be treated 1.

A vinyl chloride pipe is used as a water pipe to communicate with the water tank 21, the pump 22, the pump 22, the water treatment device 10, and the water treatment device 10 and the water tank 21, respectively (that is, the water to be treated 1). It was connected so that tap water would circulate and circulate). A vinyl chloride pipe having an inner diameter of 19 mm was used as the water pipe.

Water treatment was carried out for 24 hours according to the above contents, and the following results were obtained as measured values of the redox potential of tap water as the water to be treated 1 before and after the treatment.
<Measured value of redox potential>
Before processing: 701 mV
After 3 hours: 576 mV
After 6 hours: 432 mV
After 24 hours: 225 mV

From the above results, it was confirmed that the redox potential of water was lowered to at least about 32% before the treatment by performing the treatment according to the present invention.

From the above, it was confirmed that the water treatment method and the water treatment apparatus according to the present invention can satisfactorily reduce the redox potential of the water to be treated.

1 Water to be treated 10 Water treatment device 11 Water flow part 11a Internal space 12 Cylindrical magnet 12a Cavity part 12b Closing member 13 Coil 13a Cylindrical intermediate part 13b End part 13c Storage space 14 Storage part 14a Cylindrical part 14b Connecting part 14c Hollow part 15A Water pipe for supply 15B Water pipe for discharge

Claims (6)

A water flow portion accommodating a cylindrical magnet magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder is processed along the longitudinal axis direction of the cylindrical magnet. A water treatment method characterized by circulating water. The water treatment method according to claim 1, wherein the cylindrical magnet is housed in a coil and then housed in the water flow section. The water treatment method according to claim 1, wherein the openings at both ends of the cavity at the axial center position of the cylindrical magnet are closed. A cylindrical magnet magnetized so that magnetic flux is distributed along a direction orthogonal to the longitudinal axis direction of the cylinder, and the cylindrical magnet are housed and along the longitudinal axis direction of the cylindrical magnet. A water treatment apparatus characterized by having a water circulation section through which water to be treated flows and passes through. The water treatment apparatus according to claim 4, wherein the cylindrical magnet is housed in a coil and then housed in the water flow section. The water treatment apparatus according to claim 4, wherein the openings at both ends of the cavity at the axial center position of the cylindrical magnet are closed.