JPS6341114Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application of the invention) This invention relates to a water treatment device using magnetism.

A water molecule is a single molecule with positive and negative polarities, that is, a dipole, and for this reason, water molecules form so-called hydrogen bonds, which is a major factor in the various properties of water. ing. Additionally, the function of water molecules is to create a so-called hydrated state for molecules of other charged substances, and this is also a major feature of water's properties.
Recent scientific advances have given rise to new water-related industries and are requiring various specifications for the water used, such as low surface tension, high permeability, and no scale-forming components. There is. At present, the mainstream water treatment method that meets these demands is a treatment method using chemicals.

Recently, using the properties of dipoles that determine the properties of water, magnetism acts and manipulates dipoles to change the hydrogen bonding or hydration state of water molecules, lowering the surface tension of water and removing scale-forming components. Water treatment equipment that removes precipitation, etc. has been developed. Conventional magnetic processing devices of this type include, for example, placing a high magnetic permeability material such as iron on the central shaft, stacking rings of permanent magnets around it, and storing this in a non-magnetic cylinder. Some are known that allow water to be treated to pass through them. In this device, the magnetic lines are formed perpendicular to the water flow direction, and it is thought that alignment of the water is mainly performed in this part.

As mentioned above, the operation on the dipole of water molecules gives a strong magnetic field from the direction perpendicular to the direction of the flowing water,
By generating an electric field in a water stream, the water molecules in the electric field are affected by the electric field because they are dipoles, and the dipoles rearrange their polarity in a direction that cancels out the electric field. It will be done.
In other words, water molecules that are not bonded to molecules of other substances normally form a molecular group due to hydrogen bonds in which the polarities of each molecule attract each other.However, the polarity reordering phenomenon caused by an electric field is The polarity of water molecules is aligned in the same direction, but as a result, repulsion occurs between adjacent water molecules, hydrogen bonds are broken, water molecules are activated, the surface tension is reduced, Water properties such as improved wettability and permeability will be improved.

However, although it is theoretically possible to use conventional magnetic treatment devices, it has been difficult to actually obtain highly efficient water treatment devices using magnetic separation.

(Purpose of the invention) In view of the above-mentioned prior art, the purpose of the invention is to provide a practical water treatment device that can magnetically treat water to be treated with high efficiency.

(Summary of the invention) The phenomenon in which a voltage is induced in a conductor moving at right angles to the direction of a magnetic field is known as Faraday's law of electromagnetic induction. For example, in the case of 100 micro-MHO/cm (μ-MHO/cm) or more, it has a high resistance but functions as a conductor, and if it rapidly moves perpendicular to the direction of the magnetic field, both the magnetic field and the fluid An electric field is formed in a direction perpendicular to the direction of This was done with a focus on what happens.

That is, the present invention includes an internal core provided in a conduit through which water to be treated flows, an excitation coil provided around the conduit, an external core surrounding the excitation coil, and excitation means for the excitation coil, The present invention is characterized in that the gap between the inner wall of the conduit and the inner core is narrowed at a portion where a magnetic field is formed at right angles to the water flow between the inner core and the outer core.

(Embodiments of the invention) Hereinafter, the invention will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is an explanatory diagram of a water treatment apparatus showing an embodiment of this invention. This device is composed of an internal core 4 provided in a conduit 1 through which water to be treated 5 flows, an excitation coil provided around the conduit 1, and an external core 3 surrounding the excitation coil. The internal core 4 has both ends 4A and 4B formed with a large diameter,
The structure is such that the gap between the inner wall of the conduit 1 and the inner wall of the conduit 1 becomes narrow at a place where the water flow 5 and the magnetic flux 3 intersect at right angles.

In the above configuration, the electromagnetic coil 2 is energized,
By applying a strong magnetic field between the internal iron core 4 and the external iron core 3, a strong magnetic flux 6 is formed in the narrowed flow path between the inner wall of the conduit and the internal iron core in a direction perpendicular to the water flow 5, and as shown in FIG. As shown, an electric field indicated by a vector C is generated, which is a combination of vectors in the direction A of water flow and the direction B of magnetic flux. The water stream 5 is thus subjected to a strong magnetic field from a direction perpendicular to the water flow direction, generating an electric field, and a phenomenon occurs in which the polarity of the water molecules in the electric field matches in the electric field direction C. In other words, water molecules that form a molecular group due to hydrogen bonds produce a repulsion between the same polarities due to polarity matching caused by an electric field, the hydrogen bonds are dissolved, the water molecules become activated, and the surface tension decreases. Improves wettability and permeability. On the other hand, the polarity of the bonds between molecules of other substances and water molecules, that is, the water molecules in a hydrated state, is matched by the electric field, and some water molecules have their ionic bonds with the substance molecules pulled apart. Hydration is disrupted. Since the material molecules released from this hydrated state are charged with positive and negative electric fields, ionic bonds occur between the material molecules and are precipitated as sludge, which is formed by a conduit as described below. Separation can be achieved by installing a precipitation device or the like at the outlet of the

In the above operation, the stress for aligning the polarity of water molecules, etc. depends on the strength of the electric field, and the strength of this electric field is proportional to the flow velocity of the water stream 5, the conductivity, and the strength of the magnetic field. In this invention, by increasing the diameter of both ends 4A and 4B of the internal iron core 4 and narrowing the flow path, the magnetic resistance due to the air gap is suppressed and the magnetic field is strengthened. It is possible to form a stable electric field by adjusting the magnetic field strength, that is, excitation, to compensate for fluctuations in water velocity due to changes in water usage and changes in conductivity due to changes in water quality. It is possible to perform the following processing.

A flow path at both ends 4A and 4B of the internal core 4,
In other words, the gap length varies depending on the diameter of the conduit 1, but for example, the gap length is about 0.8 mm for a small diameter tube with an inner diameter of about 16 mm, and about 10 mm for a medium diameter tube of about 180 mm (about 5 mm of the inner diameter). ~6% or less),
The flow velocity in this part can be made five times the flow velocity in the conduit in the part without the internal core. Narrowing the air gap increases the flow velocity and strengthens the electric field, but this also increases the pressure loss of the water flow, so this should be considered in conjunction with the economics of the power required for the water pump.

It is preferable that the excitation coil 2, the outer core 3, and the inner core 2 are configured so that the strength of the magnetic field in this gap can be as high as possible, for example, about 5000 Oe. The material of the iron core has high magnetic permeability for both the outer iron core 3 and the inner iron core 4.
It is preferable to select a material that has a high maximum saturation magnetic flux density and low hysteresis characteristics; for example, a (Fe-Ni-Mo alloy) type material is suitable. In order to increase the amount of excitation of the excitation coil, it is possible to increase the number of turns and the current value, but the fact that the coil is arranged along the conduit means that the resistance loss heat of the coil is transferred to the conduit, and the heat is cooled by the fluid inside. This is effective in increasing the current density of the coil conductor, that is, in reducing the size of the coil. Furthermore, the fact that the external iron core 3 covers the outer periphery of the excitation coil 2 and forms a completely closed magnetic flux circuit with the internal iron core 4 is efficient because there is no loss of leakage magnetic flux and a strong electric field is created.

In the present invention, a device as shown in Fig. 1 is used to
By providing a plurality of stages along the line, the polarity of the water molecules can be matched with high efficiency. Furthermore, if the water flow 5 fluctuates due to adjustment of the amount of water used or changes in the amount of water discharged, it can be compensated for by adjusting the strength of the magnetic field, that is, the strength of excitation, and stable processing can be performed.

Next, FIG. 3 shows an embodiment of wastewater treatment equipment incorporating the water treatment apparatus of this invention. The water to be treated 5 is supplied by a pump 7 and passed through a strainer 8 to the water treatment device 9 of this invention, where it is regulated to a predetermined voltage from an alternating current source 15 through a transformer 14 and a rectifier 13. A direct current is supplied to the excitation coil (FIG. 1) to generate an electric field in the molecules of the water to be treated as described above, thereby performing water treatment. The water leaving the water treatment device 9 is 16
After the temperature is adjusted to a suitable temperature for precipitation, the precipitation tank 1
0, where it is separated into supernatant water and sludge 11, and the supernatant water is taken out of the system through a discharge pipe 10.

Adjusting the temperature at the outlet 16 of the water treatment device 9 is an effective method for completely precipitating scale-forming components. In other words, the solubility of scale-forming components is a function of temperature.
Most scale components can be removed by adjusting the water temperature to the most suitable temperature for scale precipitation. Due to the effect of highly active water molecules and high-speed flow, the scale precipitated here flows into the settling tank 10 without sticking to the pipe wall, where it is precipitated and removed.

The above-mentioned water treatment equipment may be used by connecting a plurality of them in series, or similar equipment may be installed after leaving the drainage hole (or water supply hole when the water becomes a new water source) 12 of the settling tank 10. can be installed to configure a multi-tiered water treatment system.

FIG. 4 shows another embodiment of the present invention,
A deep water storage tank 17 is used instead of the sedimentation tank 10 described above, and a circulating water pipe 20 is provided between the water tank and the water supply pipe to the pump 7 and the water storage tank 17, and a water supply pipe is provided. 7A, a flow rate adjustment valve is installed in the circulating water pipe 20 and the water tank outlet pipe 12, respectively.
1, V2 and V3 are provided.

In the above configuration, after water is absorbed by opening the valve V1, closing the valves V1 and V3, and opening the valve V2, the treated water in the water tank 17 is passed through the circulation pipe 20 and circulated to the water treatment device 9 by the pump 7. By repeatedly performing water treatment, desired water quality can be obtained.

(Effect of the invention) According to the invention, a magnetic field is formed at right angles to the water flow,
By narrowing the flow path at the intersection of the magnetic field and the water flow, it is possible to increase the electric field at this portion, thereby making it possible to align water molecules extremely efficiently. In addition, by adjusting the strength of the excitation coil, it is possible to treat water to a stable water quality regardless of the flow rate of the water to be treated.In addition, a temperature adjustment device is installed downstream of this water treatment equipment, so that the scale precipitation temperature By doing so, it becomes possible to sufficiently remove scale components and the like. As described above, the water treatment device of the present invention can reduce the surface tension of the water to be treated and increase the wettability and permeability of water into membrane structures, etc., thereby reducing color spots in the dyeing industry. It can be applied in an extremely wide range of applications, such as prevention, food processing, shortening the swelling process in the agricultural industry, and reducing membrane pressure loss in reverse osmosis water production equipment, and it also facilitates the removal of scale-forming components by precipitation. It avoids a decrease in thermal conductivity caused by olivine in boilers and various heat exchangers, and can be extremely effectively used as a scale prevention measure for, for example, evaporative water generation equipment and various equipment that utilizes geothermal hot water.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a water treatment device showing one embodiment of this invention, Fig. 2 is an explanatory diagram showing the electric field generated between the internal iron core and the external iron core in Fig. 1 as vectors, and Fig. 3 and FIG. 4 are explanatory diagrams of water treatment equipment incorporating the water treatment apparatus of this invention. DESCRIPTION OF SYMBOLS 1... Conduit, 2... Excitation coil, 3... External core, 4... Internal core, 4A, 4B... End of internal core, 5... Water to be treated (water flow), 6... Magnetic flux, 7
... pump, 8 ... strainer, 9 ... water treatment device, 10 ... settling tank, 13 ... rectifier, 14 ...
...Transformer, 15...AC power supply.

Claims (1)

[Scope of utility model registration request] It consists of an internal iron core provided in a conduit through which the water to be treated flows, an excitation coil provided around the conduit, an external iron core surrounding this, and a means for starting the excitation coil, and the internal iron core and the external iron core are connected to each other. A water treatment device using magnetism, characterized in that the gap between the inner wall of the conduit and the internal iron core is narrowed by a part that forms a magnetic field at right angles to the water flow.