JP2001038362A - Device for electromagnetic field treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent scales from being deposited on the inner face of a pipe body by providing a coil wound around the outside of the pipe body forming a fluid flowing pass and controlling an electric current to be applied to the coil so that the current is converted to a current inducing an electromagnetic field of such a prescribed waveform that the frequency changes temporally in a prescribed frequency band and is then applied to the coil. SOLUTION: This device 2 for electromagnetic field treatment is constituted of a coil 8 wound around the outside of the pipe body 4 forming the fluid flowing pass 6, a power source part 10 for supplying current to be applied to the coil 8 and an electric current control part 12 for controlling the current supplied from the part 10 so that the current is converted to an electromagnetic field inducing current and the converted current is then applied to the coil 8. The output value of the electromagnetic field inducing current is decided according to the quality, quantity, etc., of the fluid flowing in the pass 6. By applying the electromagnetic field inducing current to the coil 8 according to the inside diameter or the like of the body 4, a magnetic field and an electric field are generated inside the body 4 and the electron energy of both fields gives electrolysis energy to the fluid flowing in the pass 6 to perform the electromagnetic field treatment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic field treatment apparatus, and more particularly, to an electromagnetic field treatment apparatus which can prevent scale from adhering to and removing scale from the inner surface of a tube constituting a fluid flow path and prevent corrosion of the inner surface of the tube. The present invention relates to a field processing device.

[0002]

2. Description of the Related Art A pipe constituting a fluid flow path through which various fluids flow is clogged with scale or marine organisms attached to the inner surface, and the inner surface is corroded by a substance contained in the fluid. Etc. may occur.

[0003] In order to solve such a problem, water is continuously or intermittently blown into a pipe, or a chemical such as a rust preventive or a scale adhesion preventive is injected, or the bactericidal effect is reduced. A tubular body is formed from the material having the material, and furthermore, countermeasures such as cathodic protection by a pseudo electrode method and an external power supply method have been taken.

[0004]

However, there are various problems such as blowing of clean water into the tube, injection of a rust preventive and scale adhesion preventive agent, formation of the tube with a material having an antibacterial effect, and electrolytic protection. The countermeasures are that there are inconveniences that raise the cost due to the necessity of a large amount of incidental equipment, expensive chemicals and tubes of expensive materials, etc., as well as to sufficiently remove scales and other deposits inside the tubes. There was an inconvenience.

[0005] In addition, some drugs contain toxic components, which has the disadvantage of adversely affecting the environment.

[0006]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned disadvantages, the present invention provides a coil provided outside a pipe constituting a fluid flow path, and a power supply for supplying a current flowing through the coil. A current control unit for controlling a current supplied by the power supply unit to be converted into an electromagnetic field induced current having a specific waveform whose frequency changes with time in a specific frequency band and supplied to the coil. I do.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In an electromagnetic field processing apparatus according to the present invention, a current supplied from a power supply unit is supplied to a coil provided outside a tube constituting a fluid flow path in a specific frequency band by a current control unit. By controlling the electromagnetic field induced current of a specific waveform that changes with time and supplying it, the coil induces an electromagnetic field to generate a magnetic field and an electric field in the tube, and the electron energy of the magnetic field and the electric field Thus, electrolysis energy is applied to the fluid flowing through the fluid flow path using the fluid molecules and ions in the fluid as a medium to perform electromagnetic field processing.

Accordingly, the electromagnetic field processing apparatus makes the surface of the scale and the inner surface of the tube strongly negatively charged to repel the scale and the inner surface of the tube, thereby making the scale smaller and destabilizing the bond. Thus, the scale can be easily detached from the inner surface of the tube, and the inner surface of the tube can be reduced to prevent oxidation.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 17 show an embodiment of the present invention. In FIG. 1, reference numeral 2 denotes an electromagnetic field processing device. The electromagnetic field processing apparatus 2 has a fluid flow path 6 formed in a tube 4, a coil 8 provided outside the tube 4, a power supply 10 for supplying a current flowing through the coil 8, and a power supply 10. A current control unit 12 is provided for controlling the current supplied by the control unit to convert the current supplied into the coil 8 into an electromagnetic field induced current and supply the current to the coil 8.

The electromagnetic field processing device 2 determines the output value of the electromagnetic field induced current by an output value determining element such as the quality and quantity of the fluid flowing through the fluid flow path 6, and selects a model.

As shown in FIG. 2, the current control section 12 has a power supply input section 14 to which a current is inputted from the power supply section 10 and a current having a specific waveform having a frequency which changes with time in a specific frequency band. A conversion unit 16 that converts the current into an electromagnetic field induced current;
Adjustment unit 18 for adjusting the electromagnetic field induced current according to the output state
A current output unit 20 that outputs an electromagnetic field induced current, a display unit 22 that displays an eddy power relative value, a determination unit 24 that determines an output failure of the electromagnetic field induced current including disconnection of the coil 8,
And a warning output unit 26 that outputs a warning signal when it is determined that the output is defective.

The power input section 14 is provided with the power section 10 connected thereto. The current output unit 20 includes the coil 8
Are connected. The warning output unit 24 is provided with a warning unit 28 that issues a warning. The coil 8 is formed by winding a conductive wire 30.

In the electromagnetic field processing apparatus 2, a coil 8 is provided outside the tube 4 constituting the fluid flow path 6, and the current control unit 12 controls the coil 8 based on the inner diameter of the tube 4 as shown in FIG. An electromagnetic field induced current that induces an electromagnetic field flows. This electromagnetic field induced current is a current having a specific waveform whose frequency changes (modulates) with time in a specific frequency band.

The electromagnetic field induced current supplied to the coil 8 is
An electromagnetic field is induced to generate a magnetic field and an electric field in the tubular body 4, and the electron energy of the magnetic field and the electric field causes the fluid flowing through the fluid flow path 6 to transfer the electrolytic energy to the fluid molecules and ions in the fluid as a medium. To give an electromagnetic field treatment.

The fluid subjected to the electromagnetic field treatment negatively charges the solid surface containing the scale crystals and the inner surface of the tube 4. The electromagnetic field induced current supplied to the coil 8 is
The magnetic flux is changed by the temporal change (modulation) of the frequency,
As shown in FIG. 4, an eddy current is generated in the tube 4 by the induced electric field energy.

The electromagnetic field processing device 2 uses this operation to
This prevents scale from adhering to the inner surface of the tube 4 and removes the adhered scale, and also prevents corrosion of the inner surface of the tube 4.

That is, since the scale in the fluid flowing through the fluid flow path 6 of the tube 4 has a positively charged surface,
It will adhere to the inner surface of the tube 4, which is slightly negatively charged by the ground.

The electromagnetic field processing apparatus 2 ionizes the surface of the scale by applying a negative charge to the surface of the scale by the electromagnetic field treatment of the fluid, and imparts a strong negative charge to the inner surface of the tube 4 to thereby reduce the surface of the scale and the surface of the scale. The inner surface of the tube 4 is strongly negatively charged together, and the scale and the inner surface of the tube 4 are repelled.

Thus, the electromagnetic field processing apparatus 2 can separate the scale from the inner surface of the tube 4 by the repulsion between the scale and the inner surface of the tube 4 and prevent the scale from adhering to the inner surface of the tube 4. Can be prevented and removed.

Further, the electromagnetic field processing device 2 can prevent the particles from becoming large due to the coupling between the scales by imparting a strong negative charge to the surface of the scale by electromagnetic field processing of the fluid. By lowering the surface tension and miniaturizing the water clusters, water penetrates into the scale and dissolves into small crystals, and the dissolved scale is recrystallized into small crystals.

Further, the electromagnetic field processing device 2 generates an AC induced electric field and a magnetic field by an electromagnetic field induced current whose frequency changes with time, thereby increasing the vibration energy and the magnetic field caused by the AC induced electric field. The increase in electron rotation energy makes the bonding of the scale crystal unstable and prevents the growth of the scale.

Thus, the electromagnetic field processing apparatus 2 can prevent the growth of the scale and reduce the size of the particles to improve the dispersibility and easily flow down the fluid. The scale can be easily removed from the inner surface 4 of the tube 4, and the scale can be removed from the tube 4.

In addition, the electromagnetic field processing apparatus 2 causes the inner surface of the tube 4 to have a strong negative charge by electromagnetic field processing of the fluid, thereby bringing the inner surface of the tube 4 into a strong reducing state. Further, the electromagnetic field induced current supplied to the coil 8 changes the magnetic flux due to the temporal change (modulation) of the frequency, and generates an induced electric field which causes an eddy current in the tube 4 as shown in FIG. formed, the area where the induction electric field energy E becomes the maximum value E _R on the inner surface of the radius R of the tube 4 in a reduced state consisting of electron donating band.

On the inner surface of the tube 4 in the reduced state,
OH ^- film is formed under the reduced state of dissolved oxygen in the fluid,
That is, a black iron oxide film of Fe and Fe ₃ O ₄ is generated. Red rust (Fe ₂ O ₃ ) on the inner surface of the tube 4
In, the dissolved oxygen in the fluid acts as OH ⁻ and becomes black rust (Fe ₃ O ₄ ) under a reducing atmosphere.

As a result, the electromagnetic field processing apparatus 2 can prevent the inner surface of the tube 4 from being oxidized by dissolved oxygen in the fluid, thereby preventing corrosion.

As described above, in the electromagnetic field processing apparatus 2, the current control unit 12 converts the current supplied from the power supply unit 10 into an electromagnetic field induced current having a specific waveform whose frequency changes with time in a specific frequency band. In this way, an electromagnetic field is induced in the coil 8 and the fluid flowing through the fluid flow path 6 is subjected to an electromagnetic field treatment. By this processing, both the surface of the scale and the inner surface of the tube 4 are strengthened. By negatively charging, the scale and the inner surface of the tube 4 are repelled, the scale becomes small crystals and the bond is destabilized, the scale is easily detached from the inner surface of the tube 4, and the inner surface of the tube 4 is removed. Oxidation can be prevented by setting it in a reduced state.

Therefore, the electromagnetic field processing apparatus 2 can prevent the scale from adhering to the inner surface of the tube 4 and remove the adhered scale, and also prevent the inner surface of the tube 4 from corroding. be able to.

Next, a specific configuration of the electromagnetic field processing device 2 will be described.

Specific examples of the power supply unit 10 of the electromagnetic field processing device 2 include an AC power supply of 100 V or 200 V, a DC power supply of 12 V or 24 V, and a solar cell (not shown). The power supply unit 10 includes a rotary generator (not shown) driven by the fluid flowing through the fluid flow path 6, a fluid having a high conductivity flowing through the fluid flow path 6 as shown in FIG.
For example, the electrode 32 can be provided in seawater.
As described above, the power supply unit 10 utilizing the flow of the fluid does not require connection from an external power supply, and can increase the degree of freedom of installation.

The current control unit 12 of the electromagnetic field processing apparatus 2 uses a frequency band of 50 to 50,000 Hz as a specific frequency band, and generates an electromagnetic field of a specific waveform whose frequency changes with time in the frequency band of 50 to 50,000 Hz. Control to supply current.

As a specific example of the current control unit 12, an electromagnetic field induced current having a specific waveform that randomly changes at a frequency exceeding 50 times in 0.3 seconds in a frequency band of 1000 to 5000 Hz is supplied. With such control, corrosion of the inner surface of the tube 4 is prevented. In this case, as shown in FIG. 6, the higher the eddy current value, the higher the corrosion prevention effect.

Further, the current control unit 12
By controlling so as to supply an electromagnetic field induced current of a specific waveform that randomly changes at a frequency exceeding 50 times in 0.3 seconds in a frequency band of 00 Hz, Ca, Mg, etc. Prevents adhesion of inorganic scale and removes attached inorganic scale.

Further, the current control unit 12
By controlling so as to supply an electromagnetic field induced current having a specific waveform that randomly changes at a frequency exceeding 60 times in 0.3 seconds in a frequency band of 000 Hz, the silica scale adheres to the inner surface of the tube 4. Prevents and removes attached silica scale.

As shown in FIG. 7, the inorganic scale and the silica scale are prevented from adhering to and removed from each other, as shown in FIG.
In the frequency bands of 3000 Hz and 2000 to 5000 Hz, the processing effect can be enhanced most.

As a specific example of the specific waveform of the electromagnetic field induced current supplied by the current controller 12, as shown in FIG. 8, a sine wave, a half-wave rectified wave, a full-wave rectified wave, an isosceles triangular wave, a square wave,
It can be a sawtooth wave.

Among these output waveforms, the one having the highest processing effect is an AC having a non-sinusoidal waveform close to a square wave.
In this case, by increasing the distortion of the current waveform due to the resonance generated by the high frequency, the value of the eddy current generated in the tube 4 can be further increased, and the effect of preventing corrosion can be enhanced.

Specific examples of the type of the conductor 30 of the coil 8 provided outside the tube 4 include a single wire, three wires, a winding wire, a bare wire, and a covered wire. Among the types of the conductors 30 of the coil 8, the one with the highest processing effect is the coated three wires (winding).

As a specific example of the number of turns of the conductive wire 30 of the coil 8, as shown in FIG. 9, a coil provided 10 to 15 times on the outside of the tube body 4 has the greatest processing effect.

As a specific example of the winding method of the conductor 30 of the coil 8, as shown in FIG. 10, one coil 8 wound 10 to 15 times outside the tube 4, or FIG.
As shown in FIG. 2, the coil 8 wound 10 to 15 times around the outside of the tube 4 is inserted into the tube 4 through the separation portion 34 in the extension direction.
One or two or more wound coils 8 of 10 to 15 turns may be provided in the extension direction of the tube body 4 via the separation portion 34.

When the conductor 30 of the coil 8 is wound, if a sufficient linear distance is provided, the processing effect can be enhanced by performing a plurality of windings.

As a specific example of the winding direction of the conductive wire 30 of the coil 8, as shown in FIG. 12, a spirally wound outside of the tube 4 is provided, or as shown in FIG. The conductor 30 is spirally wound on the outside and provided
Can be provided so as to be inclined with respect to the extension direction of the tube 4.

As a specific example of the winding direction of the conductive wire 30 of the coil 8, as shown in FIG. 14, a cylindrical core 36 is provided on the outside of the tube 4, and the conductive wire 3 is attached to the core 36.
No. 0 is wound in a direction substantially parallel to the direction in which the tube 4 extends, and is wound around the entire circumference of the core 36, or as shown in FIG. A flat plate-shaped core 3 elongated in the direction of extension of the tube body 4 at a position symmetrical in the direction
8 are provided, and the conductors 30 are connected to the cores 38 by the pipes 4.
The core 3 is wound in a direction substantially perpendicular to the direction in which the core 3 extends.
8 may be provided by being wound over the entire length in the longitudinal direction.

As described above, by making the winding direction of the conductive wire 30 of the coil 8 different, an optimal electric and magnetic field can be applied according to the type of fluid, and the processing effect can be enhanced.

Further, as a specific example of the magnetic field shielding structure of the coil 8, as shown in FIG.
As shown in FIG. 17, two coils 8 wound in 15 turns are provided in the extension direction of the tube 4 via a separation portion 34 and a magnetic field shield 40 is provided in the separation portion 34. A coil 8 wound 10 to 15 turns is provided on the outside of the tube body 4, and the coil 8 can be provided so as to be covered by the magnetic field shield 42.

As a result, the magnetic field shield 40 is
The two coils 8 interposed prevent the electric field and the magnetic field from interfering with each other, thereby preventing a reduction in the processing effect. The coil 8 encapsulated by the magnetic field shield 42 can prevent the influence of an external electric and magnetic field.

[0046]

As described above, according to the electromagnetic field treatment apparatus of the present invention, both the surface of the scale and the inner surface of the tube are strongly negatively charged to repel the scale and the inner surface of the tube, thereby reducing the scale to small crystals. By destabilizing the bond, the scale can be easily detached from the inner surface of the tube, and the inner surface of the tube can be reduced to prevent oxidation.

Therefore, the electromagnetic field processing apparatus can prevent the scale from adhering to the inner surface of the tube, remove the adhered scale, and prevent the inner surface of the tube from corroding.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an electromagnetic field processing apparatus.

FIG. 2 is a block diagram of a current control unit.

FIG. 3 is a diagram showing a relationship between a tube inner diameter and an output current to a coil.

FIG. 4A is a diagram showing a relationship between a tube inner diameter and an induced electric field energy. (B) is a diagram showing the direction of the induced electric field energy with respect to the inner diameter of the tube.

FIG. 5 is a schematic configuration diagram of a power supply unit in which electrodes are provided in a fluid having high conductivity.

FIG. 6 is a diagram illustrating a relationship between the number of times of modulation and an eddy current value.

FIG. 7 is a diagram illustrating a relationship between a frequency and a removal rate.

FIG. 8A is a diagram showing a sine wave. (B) is a diagram showing a half-wave rectified wave. (C) is a diagram showing a full-wave rectified wave. (D) is a figure which shows an isosceles triangular wave. (E) is a figure which shows a square wave. (F) It is a figure showing a sawtooth wave.

FIG. 9 is a diagram showing a relationship between the number of turns and an eddy current value.

FIG. 10 is a schematic configuration diagram of an electromagnetic field processing apparatus provided with one coil.

FIG. 11 is a schematic configuration diagram of an electromagnetic field processing device provided with two coils.

FIG. 12 is a side view of a spirally wound coil.

FIG. 13 is a side view of a coil spirally wound and inclined.

FIG. 14A is a side view of a coil wound substantially parallel to the extension direction of the tubular body. (B) is a front view of the coil wound substantially parallel to the extension direction of the tubular body.

FIG. 15A is a side view of a coil wound substantially perpendicular to the direction in which the tubular body extends. (B) is a front view of the coil wound substantially orthogonal to the extension direction of the tube.

FIG. 16A is a side view of a coil in which a magnetic field shield is interposed. (B) is a front view of the coil with the magnetic field shield interposed.

FIG. 17A is a side view of a coil encapsulated by a magnetic field shield. (B) is a front view of the coil encapsulated by the magnetic field shield.

[Explanation of symbols]

 2 electromagnetic field processing device 4 tube 6 fluid flow path 8 coil 10 power supply unit 12 current control unit 14 input unit 16 conversion unit 18 adjustment unit 20 power output unit 22 display unit 24 determination unit 26 warning output unit 28 warning unit 30 lead wire

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16L 58/00 F16L 58/00

Claims (20)

[Claims] A coil is provided outside a tube constituting a fluid flow path, a power supply unit for supplying a current flowing through the coil is provided, and a current supplied by the power supply unit is temporally changed in a specific frequency band. An electromagnetic field processing device, comprising: a current control unit that controls to convert the current into an electromagnetic field induced current having a specific waveform that changes and supply the current to the coil. 2. The electromagnetic field processing apparatus according to claim 1, wherein the power supply unit is a power supply unit including electrodes arranged in a fluid having a high conductivity flowing through the fluid flow path. 3. The apparatus according to claim 2, wherein the current control unit is 50 to 50000H.
The electromagnetic field processing device according to claim 1, wherein the current controller is a current control unit that controls to supply an electromagnetic field induced current having a specific waveform whose frequency changes with time in a frequency band of z. 4. The current control unit according to claim 1, wherein:
A current control unit for preventing corrosion of the inner surface of the tube by controlling to supply an electromagnetic field induced current having a specific waveform that randomly changes at a frequency exceeding 50 times in 0.3 seconds in a frequency band of Hz. The electromagnetic field processing device according to claim 3, wherein: 5. The current control unit according to claim 1, wherein
In order to prevent the inorganic scale from adhering to the inner surface of the tube, by controlling to supply an electromagnetic field induced current having a specific waveform that randomly changes at a frequency exceeding 50 times in 0.3 seconds in a frequency band of Hz. And a current controller for removing the attached inorganic scale.
2. The electromagnetic field processing device according to claim 1. 6. The current control unit according to claim 6, wherein
In order to prevent the silica scale from adhering to the inner surface of the tube by controlling the supply of an electromagnetic field induced current having a specific waveform that randomly changes at a frequency exceeding 60 times in 0.3 seconds in a frequency band of Hz. The electromagnetic field processing device according to claim 3, wherein the current control unit is a current control unit that removes the attached silica scale. 7. The electromagnetic field processing device according to claim 1, wherein the current control unit is a current control unit that controls so as to supply a sinusoidal electromagnetic field induced current. 8. The electromagnetic field processing device according to claim 1, wherein the current control unit is a current control unit that controls so as to supply an electromagnetic field induced current of a half-wave rectified wave. 9. The electromagnetic field processing device according to claim 1, wherein the current control unit is a current control unit that controls so as to supply an electromagnetic field induced current of a full-wave rectified wave. 10. The electromagnetic field processing device according to claim 1, wherein the current control unit is a current control unit that controls so as to supply an electromagnetic field induced current of an isosceles triangular wave. 11. The electromagnetic field processing apparatus according to claim 1, wherein the current control unit is a current control unit that controls so as to supply a square wave of an electromagnetic field induced current of a square wave. 12. The electromagnetic field processing device according to claim 1, wherein the current control unit is a current control unit that controls so as to supply an electromagnetic field induced current of a sawtooth wave. 13. The electromagnetic field processing apparatus according to claim 1, wherein the coil is one coil in which a conductive wire is wound around the tube body 10 to 15 times. 14. The coil according to claim 1, wherein the coil is a coil in which two or more coils obtained by winding a conductive wire around the outside of the tubular body in 10 to 15 turns are provided in the extension direction of the tubular body via a separation portion. The electromagnetic field processing device according to claim 1, wherein: 15. The electromagnetic field processing apparatus according to claim 1, wherein the coil is a coil provided by spirally winding a conductive wire outside the tubular body. 16. The coil according to claim 1, wherein the coil is provided by spirally winding a conductive wire outside the tubular body, and is provided such that a winding direction of the conductive wire is inclined with respect to an extension direction of the tubular body. The electromagnetic field processing device according to claim 1, wherein: 17. The coil is provided with a cylindrical core outside the tubular body, and is wound around the core in a direction substantially parallel to the extension direction of the tubular body, and is wound around the core in the circumferential direction. The electromagnetic field processing apparatus according to claim 1, wherein the coil is provided by being wound around the circumference. 18. The coil is provided with an elongated flat plate-shaped core in an extension direction of the tube at a radially symmetrical position outside the tube, and a conductor is connected to these cores substantially orthogonal to the extension direction of the tube. The electromagnetic field processing device according to claim 1, wherein the coil is a coil wound in a direction in which the core is wound and wound over the entire length in the longitudinal direction of the core. 19. The electromagnetic field processing device according to claim 14, wherein the coil is a coil provided with a magnetic field shield interposed in the separated portion. 20. The coil according to claim 13, wherein the coil is a coil provided by being covered by a magnetic field shield.
The electromagnetic field processing device according to claim 18.