KR101071505B1 - generation appartus of micro bubble - Google Patents

Abstract

The microbubble generating device according to the present invention is a microbubble generating device for agitating and converting a mixed oil mixed with water and a fuel into an emulsion state, wherein the inlet into which the mixed oil is fed and the mixed oil converted into an emulsion state A hollow housing including a discharge outlet; A rotating shaft installed to rotate through the center of the housing; A stirring member installed on the rotating shaft to stir the mixed oil introduced through the inlet while rotating together with the rotating shaft; A through hole through which the rotating shaft passes, an inlet formed in a size of a first area, an outlet formed in a size of a second area equal to or larger than the first area, and smaller than the first area. An orifice plate having an orifice portion formed in a size of a third area, the orifice plate having a plurality of injection holes for injecting the mixed oil stirred through the stirring member; And a blade installed at the rotary shaft and guiding the mixed oil injected through the orifice plate while rotating with the rotary shaft to the discharge port. As a result, a microbubble generating device capable of producing a mixed oil in an emulsion state that can be stably lasted for a long time even with a small amount of energy in a continuous operation, and providing a power saving of the facility is provided.

Micro Bubble, Ultra Bubble, Emulsion, Mixed Oil, Magnet, Nozzle

Description

Micro bubble generator {generation appartus of micro bubble}

The present invention relates to a microbubble generating device, and more particularly, by mixing the mixed oil mixed with water and fuel by rotating the stirring member provided on the rotating shaft, and by spraying the mixed mixed oil, even mixing using a small energy The present invention relates to a microbubble generating device for stably emulsifying oil so that microbubbles are generated substantially uniformly in the mixed oil.

The emulsion state refers to the uniform dispersion of other liquids that do not blend with it in a liquid state in a particulate state, but here the fuel (liquid petroleum fuel, crude oil, kerosene, heavy oil, gasoline, refined crude oil). It refers to the state of water-in-oil emulsion by mixing water in various ways.

When the mixed oil mixed with water and the fuel is in an emulsion state, micro bubbles are generated in the mixed oil. Emulsion mixture oil is effective in terms of energy saving because it can increase the combustion efficiency, it is useful in the environment because it can suppress the generation of air pollutants.

Conventionally, in order to generate a micro bubble by stirring the mixed oil in an emulsion state, water and fuel are supplied at a predetermined ratio in the chamber, and stirred by stirring by using an impeller, and then converted into the mixed oil in an emulsion state and stored in a separate storage tank. I did it.

However, according to the related art, a device (method) for generating microbubbles using rotational force creates a state of emulsion by simply stirring and stirring fuel and water on an impeller, so that the mixed oil takes a long time to become an emulsion state. There was this.

In addition, there is a problem in that the operation of preparing the mixed oil in an emulsion state cannot proceed continuously due to the above-described time.

In addition, according to the prior art, the mixed oil converted to the emulsion state has a problem that the emulsion state becomes very unstable after a certain time and the oil and water separation of water and fuel occurs.

Therefore, an object of the present invention is to solve such a conventional problem, a micro-bubble generating device capable of maintaining the emulsion state stably for a long time, and can suppress the oil and water separation of water and fuel In providing.

Another object of the present invention is to provide a microbubble generating device capable of continuously performing a process of preparing a mixed oil in an emulsion state.

In addition, the present invention provides a micro bubble generator that can minimize the time required for the mixed oil to be in an emulsion state.

According to the present invention, in the microbubble generating device for agitating and converting a mixed oil including water and fuel into an emulsion state, an inlet through which the mixed oil is introduced and a mixed oil converted into an emulsion state A hollow housing including a discharge outlet; A rotating shaft installed to rotate through the center of the housing; A stirring member installed on the rotating shaft to stir the mixed oil introduced through the inlet while rotating together with the rotating shaft; A through hole through which the rotating shaft passes, an inlet formed in a size of a first area, an outlet formed in a size of a second area equal to or larger than the first area, and smaller than the first area. An orifice plate having an orifice portion formed to a size of a third area and having a plurality of injection holes for injecting the mixed oil stirred through the stirring member; It is achieved by the micro-bubble generating device characterized in that it comprises a blade which is installed on the rotary shaft and guides the mixed oil injected through the orifice plate while rotating with the rotary shaft to the outlet.

Here, the injection hole is preferably formed to have a size of the fourth area smaller than the first area and larger than the third area to further include a reduction portion for changing the inclination of the inner wall between the inlet portion and the orifice portion. .

Here, the distance between the inlet portion and the orifice portion is preferably smaller than the distance between the orifice portion and the outlet portion.

Herein, it is preferable that magnetic bodies are further installed on the inner wall of the housing and the rotating shaft.

Here, the magnetic body is composed of a first magnetic body installed on the inner wall of the housing and a second magnetic body installed on the rotating shaft, the first support plate surrounding the inner wall of the housing and the first magnetic body is installed on the inner wall; A first protective member surrounding the first magnetic material; A second support plate surrounding the rotating shaft and having the second magnetic body installed on an outer circumferential surface thereof; It is preferable to further include; a second protective member surrounding the second magnetic body.

Here, it is preferable to further include a fixing cap for fixing the first support plate and the first magnetic body and the first protective member integrally installed at both ends of the first support plate.

Here, it is preferable that the magnetic bodies provided on the inner wall of the housing and the rotating shaft respectively have the same polarity.

Here, the magnetic material is preferably formed by coating urethane on a ferrite metal.

Here, the magnetic body is preferably configured to be composed of any one of an electromagnet, an electromagnet and a permanent magnet.

According to the present invention, the stirring, spraying, and re-stirring are continuously performed in one housing, so that even in the case of using less energy, it is possible to obtain a safe emulsion oil mixture and to reduce the power of the facility. A bubble generator is provided.

Further, there is provided a microbubble generating device capable of continuously carrying out the operation of producing the mixed oil in an emulsion state.

In addition, there is provided a microbubble generating device capable of stably maintaining an emulsion state for a long time of the prepared mixed oil, and can suppress the oil and water separation of water and fuel.

In addition, a micro bubble generator is provided that can produce more mixed oil in a short time by minimizing the time required for the mixed oil to be in an emulsion state.

In addition, a microbubble generating device capable of completely burning the manufactured mixed oil is provided, which can reduce environmental pollution problems such as energy saving effect and air pollutant reduction.

Here, a microbubble generating device capable of minimizing the generation of contaminants generated during combustion by sufficiently containing oxygen necessary for combustion in the mixed oil in an emulsion state is provided.

Prior to the description, in the various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, different configurations from the first embodiment will be described. do.

Hereinafter, a microbubble generating device according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view schematically showing a micro bubble generating apparatus according to an embodiment of the present invention, Figure 2 is an exploded cross-sectional view of FIG.

1 and 2, the microbubble generating device according to an embodiment of the present invention is an apparatus for converting a mixed oil mixed with water and a fuel into an emulsion state, according to an embodiment of the present invention. The microbubble generating device is connected to a motor M driven by an applied power source. The motor M is driven such that the drive shaft D rotates by an applied power source. The drive shaft (D) is connected to the rotary shaft (4) by the connecting socket (S), the rotational force of the drive shaft (D) of the motor (M) is transmitted to the rotary shaft (4), thereby rotating the rotary shaft (4) of the microbubble generating device The mixed oil may be stirred and converted into an emulsion state.

Microbubble generating device according to an embodiment of the present invention may be divided into a housing (1), a rotating shaft (4), a stirring member (5), an orifice plate (6) and a blade (7).

The housing 1 has a cylindrical shape and has a hollow, and on one side is formed an inlet 211 into which the mixed oil is injected, and the other side is formed with an outlet 221 through which the mixed oil converted into an emulsion state is discharged.

In more detail, the housing 1 may be divided into a body part 2 and a support part 3.

The body portion 2 is open at both ends to form a cylindrical hollow portion 23a, and the hollow portion 23a is formed such that the inlet 211 and the outlet 221 communicate with each other.

Here, the body portion 2 may be separated and separated into a case 23, a first closing member 21, and a second closing member 22. The case 23 is formed in the hollow cylindrical shape in which the hollow part 23a was formed. The first closing member 21 is a member coupled to an open end at one side of the case 23, and the above-described inlet 211 is formed, and the first opening 214 is formed to pass through the rotating shaft 4 to be described later. It is. At the edge of the first opening 214, a jaw may be formed to seat the O-ring 9 to be described later. The second closing member 22 is a member coupled to an end opened at the other side of the case 23, and the outlet 221 described above is formed, and the second closing member 22 passes through the rotating shaft 4, which will be described later. The second opening 224 is formed to be. A jaw may be formed at the edge of the second opening 224 so that the O-ring 9 to be described later is seated.

Here, the guide part 212 may be formed in the first closing member 21. 4 is an enlarged view of a portion “B” of FIG. 1, and referring to FIG. 4, the guide part 212 is formed to be inclined so that the mixed oil introduced through the inlet 211 flows along the rotation shaft 4. Then, the mixed oil introduced through the inlet 211 hits the guide portion 212 or flows along the guide portion 212 toward the stirring member 5 to be described later. Although not shown, the guide part 212 may be provided on the rotary shaft 4 to rotate together with the rotary shaft 4.

In addition, the inlet 211 may be eccentrically installed on one side of the first closing member 21 of the body portion (2). 5 is a view illustrating a cut surface along the line C-C 'of FIG. 1, referring to FIG. 5, the inlet 211 is eccentrically installed at one side of the first closing member 21. Then, the mixed oil introduced through the inlet 211 is directed toward the stirring member 5 to be described later while rotating along the inner wall of the first closing member 21. In this case, a flow path 213 may be formed on the inner wall of the first finishing member 21. The flow path 213 is inclined along the inner wall of the first finishing member 21 such that the mixed oil introduced through the inlet 211 faces the stirring member 5 described later. The mixed oil introduced through the inlet 211 using the inclination of the flow path 213 may be easily directed toward the stirring member 5 while rotating along the inner wall of the first finishing member 21.

The support 3 is coupled to both ends of the opened body 2 to support the rotating shaft 4 to be described later. In more detail, the support 3 is coupled to the first closing member 21 and the second closing member 22 to close the first opening 214 and the second opening 224, respectively. The support part 3 rotates the hollow closing cap 31 coupled to the first closing member 21 or the second closing member 22 and the rotating shaft 4 installed and passed through the closing cap 31. It is made up of a bearing (32). The closing cap 31 allows the third opening 33 to be opened so that the rotation shaft 4 can pass therethrough. At this time, the cover 34 is coupled to the closing cap 31 coupled to the second closing member 22 to close the third opening 33.

At this time, the leakage preventing member 8 may be installed between the coupled body part 2 and the support part 3 to seal the end of the opened body part 2 without interfering with the rotation of the rotation shaft 4.

The leakage preventing member 8 is formed to seal the first opening 214 of the first closing member 21 and the second opening 224 of the second closing member 22. The O-ring may be further installed between the first closing member 21 and the leak preventing member 8 and between the second closing member 22 and the leak preventing member 8 to improve the sealing force. The o-ring 9 may be seated on a jaw formed at the first opening 214 and the second opening 224 to prevent the o-ring 9 from flowing and escaping.

The rotating shaft 4 is a shaft which is connected to the driving shaft D of the motor M and transmits the rotational force of the motor M, and is installed to rotate through the center of the housing 1. In other words, the rotating shaft 4 is installed through the center of the housing 1, and both sides are supported by the bearing 32 of the support part 3 so as to smoothly rotate in the housing 1. In this case, the rotation shaft 4 passes through the first opening 214 and the second opening 224 described above.

The stirring member 5 is installed on the rotary shaft 4 to stir the mixed oil introduced through the inlet 211 while rotating together with the rotary shaft 4. The stirring member 5 may serve to grind while rotating the mixed oil introduced through the inlet 211 to promote the generation of micro bubbles in the mixed oil. The end of the stirring member 5 may be spaced apart from the inner wall of the housing to promote the generation of micro bubbles in the mixed oil which is stirred according to the separation distance d.

Although not shown, the stirring member 5 may be formed to penetrate the entrance and exit hole in the direction of the rotation shaft (4). Inlet and outlet can also promote the generation of micro bubbles in the stirred mixed oil.

For example, the stirring member 5 may have a plate member having a triangular or trapezoidal cross section spirally along the rotation shaft 4. At this time, the stirring member 5 is formed with a first inclined surface 51 having a first inclination angle a1 smaller than 90 degrees clockwise from the rotational axis 4 along the moving direction of the mixed oil introduced through the inlet 211. And a second inclined surface 52 connected to the first inclined surface 51 to form a second inclined angle a2 smaller than 90 degrees counterclockwise from the rotation axis 4 to form a cross section of a triangular or trapezoidal shape. To form. In this case, the distance between the end of the stirring member 5 where the first inclined surface 51 and the second inclined surface 52 meet and the inner wall of the housing 1 may be about 1 to 2 mm. In addition, the first inclination angle (a1) may be formed larger than the second inclination angle (a2), thereby acting to push the mixed oil introduced through the inlet 211 to the outlet 221 to smoothly flow the mixed oil. And, it is possible to activate that the mixed oil introduced through the inlet 211 is stirred. As an example, the first inclination angle a1 is 60 degrees to 62 degrees, so that the stirring member 5 can generate the maximum thrust of pushing the mixed oil from the inlet 211 to the outlet 221, and the second inclination angle a2. ) Can be 48 degrees to 50 degrees to minimize the resistance of the above-described thrust.

The stirring member 5 may be formed of a plurality of blades formed along the direction of rotation of the rotary shaft 4 as another example. The stirring member 5 may be installed in multiple stages along the rotating shaft 4. By adjusting the torsion angle of the wing, it is possible to smoothly flow the mixed oil as described above, and to activate the mixed oil is stirred.

The orifice plate 6 is installed in the housing 1 to inject the stirred mixed oil through the stirring member 5. The orifice plate 6 may be installed to be fixed to the case 23 in the housing 1 or to be fixed to the rotation shaft 4.

FIG. 7 is a view schematically showing an orifice plate of a microbubble generating device according to an embodiment of the present invention, and FIG. 8 is an enlarged view of a portion “E” of FIG. 1. Referring to FIGS. 7 and 8, the orifice plate 6 is formed with a through hole 61 through which the rotating shaft 4 passes in the center thereof, and is stirred through the stirring member 5 around the through hole 61. A plurality of injection holes 62 for injecting mixed oil are formed.

Here, the injection hole 62 has an inlet 621 into which the mixed oil is stirred through the stirring member 5, an outlet 622 through which the mixed oil introduced into the inlet 621 is discharged, and an inlet 621. And the orifice portion 623 through which the mixed oil introduced into the inlet portion 621 passes between the outlet portion 622 and the outlet portion 622. In addition, the injection hole 62 may further include a reduction portion 624 for changing the inclination of the inner wall between the inlet portion 621 and the orifice portion 623.

In this case, the distance d1 between the inlet part 621 and the orifice part 623 is smaller than the distance d2 between the orifice part 623 and the outlet part 622.

The inlet part 621 is formed in the size of the 1st area A1, the outlet part 622 is formed in the size of the 2nd area A2 which is equal to or larger than the 1st area A1, and the orifice part 623 ) Is formed to have a size of a third area A3 smaller than the first area A1, and the reduction portion 624 is smaller than the first area A1 and larger than the third area A3. It should be formed in the size of.

The structure of the injection hole 62 described above in the orifice plate 6 is a structure for minimizing the separation of water and fuel, which is the biggest obstacle to making micro bubbles, and minimizes the phenomenon that no emulsion is formed due to the back pressure. And the mixed oil stirred through the stirring member 5 passes through the orifice plate 6, and the emulsion state of the mixed oil can be made safe.

In addition, by further forming the reduction portion 624, the inlet portion 621 side of the injection hole 62 has a double jaw structure to facilitate the injection of the mixed oil through the injection hole 62, the emulsion state of the mixed oil You can make it safe.

The blade 7 is installed on the rotating shaft 4 to rotate together with the rotating shaft 4 to guide the mixed oil injected through the orifice plate 6 to the outlet 221.

The above-described micro bubble generator may further be provided with a magnetic material. FIG. 3 is an enlarged view of a portion “A” of FIG. 1, and FIG. 6 is a view schematically illustrating a plane cut along the line D-D ′ of FIG. 1. 3 and 6, the magnetic body may be installed on the inner wall of the housing 1 (inner wall of the case 23) and the rotating shaft 4, respectively. Herein, the magnetic body installed on the inner wall of the housing 1 (the inner wall of the case 23) is called the first magnetic body 26, and the magnetic body installed on the rotation shaft 4 is called the second magnetic body 56.

The first magnetic body 26 may be fixedly installed on the first support plate 25 and surround the surface of the first magnetic body 26 with the first protective member 27 to prevent wear of the first magnetic body 26. Here, the first support plate 25 is formed in a cylindrical shape to be fixed to the inner wall of the housing 1 (inner wall of the case 23). Fixing caps 28 may be installed at both ends in order to stably fix the combined first support plate 25, the first magnetic body 26, and the first protective member 27.

The second magnetic body 56 may be fixedly installed on the second support plate 55, and may surround the surface of the second magnetic body 56 with the second protective member 57 to prevent wear of the second magnetic body 56. Here, the second support plate 55 is formed to have a cylindrical shape to surround and fix the outer circumferential surface of the rotation shaft 4. The combined second support plate 55, the second magnetic body 56, and the second protective member 57 are installed and fixed between the rotation shaft 4 and the stirring member 5. Although not shown, a second magnetic body 56 may be formed at the end of the stirring member 5.

The first support plate 25 and the second support plate 55 described above may shield the magnetic force of the installed magnetic body.

Here, the first magnetic material 26 and the second magnetic material 56 may be the same polarity. The first magnetic body 26 and the second magnetic body 56 may be formed by coating urethane on a ferrite metal, respectively, to increase durability of the magnetic body. In addition, at least one of the first magnetic body 26 and the second magnetic body 56 may be configured of any one of an electromagnet, an electromagnet, and a permanent magnet so as to control the strength of the magnetic force.

In the case where the magnetic body is further installed, the distance d between the inner wall of the first protective member 27 and the end of the stirring member 5 in the inner wall of the housing 1 in which the first magnetic body 26 is installed is a gap of 4 to 7 mm. In order to form and ionize the microbubble, the first magnetic body 26 and the second magnetic body 56 may apply a magnetic force of about 2000 to 4000 gauss at the same polarity.

When the magnetic body is further installed in the microbubble generating device according to an embodiment of the present invention, since the polarity of the first magnetic body 26 and the second magnetic body 56 is the same, the rotation shaft 4 due to the magnetic force does not interfere with the rotation. Since the induction current is generated between the first magnetic body 26 and the second magnetic body 56 by the rotation of the rotary shaft 4, hydroxyl ions are generated in the mixed oil which is stirred, thereby bringing the effect of the surface activity. Mixed oils may be converted to a more stable emulsion state.

Hereinafter, a process of generating micro bubbles according to the first embodiment of the micro bubble generator described above will be described.

When mixed oil mixed with water and fuel is introduced through the inlet 211, the injected mixed oil passes through the hollow portion 23a of the housing 1 and is discharged to the outlet 221. First, when the mixed oil is introduced into the inlet 211, it passes through the stirring member 5 rotating in the hollow part 23a. At this time, the mixed oil is stirred in the form of pulverizing water and fuel while rotating by the rotating stirring member (5). Further, while moving through the gap between the housing 1 and the stirring member 5, the grinding stirring of water and fuel is repeated. Through this process, the mixed oil is converted into a primary emulsion state, thereby generating a primary microbubble. The mixed oil which has passed through the stirring member 5 passes through the orifice plate 6 in which the injection hole 62 was continuously formed. At this time, a high pressure is formed on the inlet 211 side around the orifice plate 6, and a relatively low pressure is formed on the outlet 221 side, so that the mixed pressure oil passes through the injection hole 62 of the orifice plate 6 and forms a small drop. Is sprayed on. In this case, the mixed oil may be converted into a secondary emulsion state, thereby generating secondary micro bubbles. The secondary microbubble formed here is produced finer and more stable than the primary microbubble.

The mixed oil injected in this way is stirred by the blade 7 rotating together with the rotation shaft 4 again, and the stirred mixed oil is moved to the outlet 221 by the rotation of the blade 7. The mixed oil injected while passing through the blades 7 is stirred again and converted into a stabilized tertiary emulsion state, thereby producing tertiary microbubbles. The rotating blade 7 is able to form a relatively low pressure at the outlet 221 side compared to the inlet 211 side around the orifice plate 6 to be mixed through the injection hole 62 of the orifice plate 6 The jet of oil can be made smooth.

Finally, the mixed oil discharged to the outlet 221 is converted into an emulsion state over three orders, and thus micro bubbles are generated over three orders, thereby achieving a stable emulsion state.

The microbubble generating device according to an embodiment of the present invention rotates the rotating shaft 4 of the microbubble generating device using one motor M, and continuously feeds mixed oil introduced while the rotating shaft 4 rotates. By going through the process of stirring, spraying, and re-stirring it is possible to stabilize the emulsion state of the mixed oil.

The scope of the present invention is not limited to the above-described embodiment, but may be embodied in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the invention claimed in the claims, it is intended that any person skilled in the art to which the present invention pertains falls within the scope of the claims described in the present invention to various extents which can be modified.

1 is a cross-sectional view schematically showing a micro bubble generating apparatus according to an embodiment of the present invention,

2 is an exploded cross-sectional view of FIG.

3 is an enlarged view of a portion “A” of FIG. 1;

4 is an enlarged view of a portion “B” of FIG. 1;

5 is a view illustrating a plane cut along the line CC ′ of FIG. 1;

FIG. 6 is a view schematically illustrating a plane cut along a line D-D ′ of FIG. 1;

7 is a view schematically showing an orifice plate of a microbubble generating device according to an embodiment of the present invention;

8 is an enlarged view of a portion “E” of FIG. 1.

<Explanation of symbols for the main parts of the drawings>

DESCRIPTION OF SYMBOLS 1: Housing 2: Body 21: First finishing member

211: inlet 212: guide portion 213: euro

214: first opening 22: second closing member 221: outlet

224: second opening 23: case 23a: hollow

25: first base plate 26: first magnetic material 27: first protective member

28: fixing cap 3: support 31: closing cap

32: bearing 33: third opening 34: cover

4: rotating shaft 5: stirring member 51: first inclined surface

52: second inclined surface 55: second support plate 56: second magnetic body

57: second protective member 6: orifice plate 61: through hole

62: injection hole 621: inlet 622: outlet

623: orifice portion 624: reduction portion 7: blade

8: Leak-proof member 9: O-ring

M: Motor D: Drive Shaft S: Connection Socket

Claims (9)

In the micro bubble generator for converting the mixed oil mixed with water and fuel into an emulsion state, A hollow housing including an inlet for mixing the mixed oil and an outlet for discharging the mixed oil converted into an emulsion state; A rotating shaft installed to rotate through the center of the housing; A stirring member installed on the rotating shaft to stir the mixed oil introduced through the inlet while rotating together with the rotating shaft; A through hole through which the rotating shaft passes, an inlet formed in a size of a first area, an outlet formed in a size of a second area equal to or larger than the first area, and smaller than the first area. An orifice plate having an orifice portion formed in a size of a third area, the orifice plate having a plurality of injection holes for injecting the mixed oil stirred through the stirring member; And a blade installed on the rotating shaft and guiding the mixed oil injected through the orifice plate while rotating together with the rotating shaft to the discharge port. The method of claim 1, The injection hole is micro-bubble characterized in that the size of the fourth area smaller than the first area and larger than the third area further comprises a reduction portion for changing the inclination of the inner wall between the inlet and the orifice portion Generator. The method of claim 1, And the distance between the inlet and the orifice is smaller than the distance between the orifice and the outlet. The method according to any one of claims 1 to 3, Microbubble generating device, characterized in that the magnetic body is further installed on the inner wall and the rotating shaft of the housing. 5. The method of claim 4, The magnetic body is composed of a first magnetic body installed on the inner wall of the housing and a second magnetic body installed on the rotating shaft, A first support plate surrounding the inner wall of the housing and having the first magnetic material installed on the inner wall; A first protective member surrounding the first magnetic material; A second support plate surrounding the rotating shaft and having the second magnetic body installed on an outer circumferential surface thereof; And a second protective member surrounding the second magnetic body. The method of claim 5, And a fixing cap integrally fixing the first support plate, the first magnetic body, and the first protective member to be coupled to both ends of the first support plate, respectively. 5. The method of claim 4, Microbubble generating device, characterized in that the magnetic body is installed on the inner wall of the housing and the rotating shaft respectively. 5. The method of claim 4, The magnetic body is a micro bubble generator, characterized in that formed by coating a urethane on a ferrite metal. 5. The method of claim 4, The magnetic body is a micro bubble generator, characterized in that consisting of any one of electromagnets, tourmaline and permanent magnets.

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