WO2022107392A1 - Air diffuser and water treatment apparatus - Google Patents

Abstract

An air diffuser comprising: a tubular body; a stirring member which is formed of multiple vanes each having multiple borings formed therein and in which the multiple vanes are helically arranged in the same winding direction while maintaining a flow passage in the center thereof; and a magnetization member which is disposed inside the tubular body and by which fluid within the tubular body is subjected to magnetization treatment.

Description

Air diffuser and water treatment device

The present invention relates to an air diffuser used in a water treatment apparatus and a water treatment apparatus using the air diffuser.

The air diffuser provided in a water treatment device such as a sewage treatment facility is, for example, a device for mixing fine bubbles in a liquid. As an example of the technique relating to such an air diffuser, there is a technique described in Patent Document 1 below. Patent Document 1 describes a configuration in which a stationary mixer is internally installed in a vertically arranged cylindrical passage pipe, and a gas outlet is arranged in a space below the stationary mixer through a gas phase line. There is. As a result, due to the air lift effect generated by the buoyancy of the gas ejected from the gas outlet, the liquid is introduced into the space from the liquid introduction part on the lower end side of the passage pipe and flows through the static mixer, and the liquid and gas It is said that aeration, dissipation and chemical reaction proceed due to sufficient gas-liquid contact. Further, as the stationary mixer, a configuration in which a plurality of blades having a large number of holes perforated is internally provided in a passage pipe in a right-twisted or left-twisted spiral is described. As a result, while the gas and the liquid continuously repeat the splitting, merging, reversing and shear stress actions while flowing through the spiral blade body, they are brought into gas-liquid contact and discharged into the liquid. There is.

Japanese Unexamined Patent Publication No. 2005-144425

Since the liquid containing fine bubbles (hereinafter referred to as the liquid containing fine bubbles) produced by the above-mentioned air diffuser is effective for decomposition and sterilization of organic substances, various water treatments such as purification are performed. It is used in. Therefore, there is a demand for an air diffuser having higher water treatment efficiency.

Therefore, an object of the present invention is to provide an air diffuser capable of improving water treatment efficiency and a water treatment device using this air diffuser.

The present invention for achieving such an object is composed of a tubular body and a plurality of blade bodies each having a plurality of perforations, and the plurality of blade bodies are wound in the same manner while holding a flow path in the center. It is an air diffuser including a stirring member arranged spirally in a direction and a magnetizing member installed in the tubular body to magnetize a fluid in the tubular body.

According to the present invention, it is possible to provide an air diffuser capable of improving water treatment efficiency and a water treatment device using this air diffuser.

It is a perspective view of the air diffuser which concerns on 1st Embodiment. It is a figure which shows the whole structure of the air diffuser which concerns on 1st Embodiment. It is a side view of the main part of the air diffuser which concerns on 1st Embodiment. It is sectional drawing of the stirring member provided in the air diffuser of each embodiment. It is a top view explaining the stirring member provided in the air diffuser of each embodiment. It is a top view of the magnetizing member provided in the air diffuser which concerns on 1st Embodiment. It is a figure which shows the whole structure of the air diffuser which concerns on 2nd Embodiment. It is a top view of the magnetizing member provided in the air diffuser which concerns on 2nd Embodiment. It is a figure which shows the whole structure of the air diffuser which concerns on 3rd Embodiment. It is a figure which shows the whole structure of the water treatment apparatus which concerns on 4th Embodiment. It is a figure which shows the whole structure of the air diffuser which concerns on 5th Embodiment. It is sectional drawing from the cross-sectional view of the air diffuser which concerns on 5th Embodiment. It is a figure which shows the whole structure of the water treatment apparatus which concerns on 6th Embodiment. It is a figure which shows the whole structure of the water treatment apparatus which concerns on 7th Embodiment. It is a figure which shows the whole structure of the air diffuser which concerns on 8th Embodiment. It is a figure which shows the whole structure of the water treatment apparatus which concerns on 9th Embodiment. It is a figure which shows the whole structure of the water treatment apparatus which concerns on 10th Embodiment.

Hereinafter, embodiments of the air diffuser and the water treatment device to which the present invention is applied will be described with reference to the drawings. In each embodiment described below, the same components are designated by the same reference numerals, and some of the duplicate explanations will be omitted.

<< First Embodiment >>
-Air diffuser-
FIG. 1 is a perspective view of the air diffuser 1 according to the first embodiment. FIG. 2 is a diagram showing the overall configuration of the air diffuser 1 according to the first embodiment. The air diffuser 1 shown in these figures is installed at the bottom of the liquid storage tank and used to disperse the gas [G] in the liquid [L] stored in the storage tank. Such an air diffuser 1 includes a gas supply pipe 10, a stirring member 20 provided in the gas supply pipe 10 (see FIG. 2), a flow path pipe 30 communicating with the gas supply pipe 10, and a flow path pipe 30. It is provided with a magnetizing member 40 (see FIG. 2) provided in the above. These are configured as follows.

<Gas supply pipe 10>
The gas supply pipe 10 is a tubular body and is configured as an injection nozzle for ejecting compressed gas [G]. In the gas supply pipe 10, one opening is a gas introduction port 10a connected to the gas supply source 200, and the other opening is a gas outlet 10b for ejecting gas into the flow path pipe 30 described below.

Such a gas supply pipe 10 has an outer diameter smaller than the inner diameter of the flow path pipe 30. Further, the gas supply pipe 10 is supported by, for example, four plate-shaped supports 11 from four directions with respect to the flow path pipe 30, and is held so that the central axis is substantially coaxial with the flow path pipe 30. I will do it. It is assumed that these supports 11 are arranged parallel to the axial direction of the flow path pipe 30 without hindering the inflow of the liquid [L] into the flow path pipe 30.

FIG. 3 is a side view of a main part of the air diffuser according to the first embodiment, and is a side view of the gas supply pipe 10. As shown in this figure, the outer peripheral wall of the gas supply pipe 10 on the gas introduction port 10a side has a screw structure for screw-connecting the supply line from the gas supply source 200. The connection between the gas supply pipe 10 and the gas supply source 200 is not limited to the screw connection, and may be a flange connection.

<Stirring member 20>
The stirring member 20 is a member arranged inside the gas supply pipe 10, and is a flow path pipe in which the compressed gas [G] introduced into the gas supply pipe 10 from the gas supply source 200 is finely dispersed. It is a member for ejecting into 30 (see FIGS. 1 and 2). Further, the stirring member 20 has a function of generating a cavitation effect according to the amount of gas supplied.

FIG. 4 is a cross-sectional perspective view of the stirring member 20 provided in the air diffuser of each embodiment, and is a central vertical cross-sectional perspective view along the axial direction of the gas supply pipe 10 at the position where the stirring member 20 is arranged. be. Further, FIG. 5 is a plan view illustrating the stirring member 20 provided in the air diffuser of each embodiment, and is a view of the gas supply pipe 10 as viewed from the gas outlet 10b side. As shown in FIGS. 4, 5 and 3 described above, the stirring member 20 has a configuration in which a plurality of blades 21 are internally provided in the gas supply pipe 10. Each blade 21 is formed as a fan-shaped perforated plate having a plurality of perforations 21a.

Each such blade 21 is spirally fixed to, for example, the inner wall of the gas supply pipe 10, and as an example, has a configuration in which the inner wall of the gas supply pipe 10 projects into the inside of the gas supply pipe 10. .. In the example shown in FIGS. 3 to 5, six fan-shaped blades 21 are arranged in a spiral shape in the same winding direction with respect to the wall portion of the gas supply pipe 10. When the gas introduction port 10a side of the gas supply pipe 10 has a screw structure as shown in FIG. 3, the spiral winding direction is preferably in the opposite direction to the screw structure, and is 90 ° in the illustrated example. The case of right twist is shown. This makes it possible to prevent the screw connection between the gas supply pipe 10 and the gas supply source 200 from loosening.

A flow path 22 (FIGS. 4 and 4) in which the blade 21 is not arranged in the center of the gas supply pipe 10 provided with the plurality of fan-shaped blades 21 in the central portion when the gas supply pipe 10 is viewed from the axial direction. 5) will be formed. If the flow path 22 in which the blade 21 is not arranged is formed in the center of the gas supply pipe 10, the blade 21 is configured to protrude from the inner wall of the gas supply pipe 10 to the inside of the gas supply pipe 10. It is not limited to being. Although not shown here, the stirring member 20 may be configured such that the gas supply pipe 10 is provided with an inner cylinder to form a double pipe, and the blade body 21 is held by the inner cylinder. Further, if the flow path 22 is secured inside the inner cylinder, the blade body 21 may be installed inside the inner cylinder as well.

The method for forming the stirring member 20 is not limited, but when the purpose is to improve the dispersion efficiency by miniaturizing the gas [G] by the stirring member 20, the forming method having a high packing density of the blade 21 Is preferable. For example, for the stirring member 20, for example, a fan-shaped blade 21 cut by using a laser processing machine is manufactured, and the fan-shaped blade 21 cut into a fan shape is spirally molded by using a mold, and the gas supply pipe 10 is formed. It is obtained by arranging the spiral blade body 21 in the perforated portion formed by the laser processing machine and joining the wall portion of the gas supply pipe 10 and the end edge portion of the blade body 21 by the laser processing machine. In this state, the fan-shaped outer peripheral edge 21b (see FIGS. 3 and 4) of each blade body 21 may be exposed on the outer peripheral wall of the gas supply pipe 10. Further, the stirring member 20 may be integrally formed with the gas supply pipe 10 by using, for example, a 3D printer or the like.

The stirring member 20 described above includes a spiral flow in which the gas [G] introduced from the gas introduction port 10a side of the gas supply pipe 10 flows along the spiral of the blade body 21, and a straight flow traveling straight through the flow path 22. It is separated into a split flow flowing through each of the perforations 21a formed in the blade body 21 and merged with the split flow. The gas [G] passing through the stirring member 20 is continuously divided, rotated, and sheared by repeating separation and merging to generate turbulent flow and disperse, and the gas outlet of the gas supply pipe 10 is used. It is ejected from 10b into the flow path tube 30. The injection speed of the gas [G] ejected from the gas supply pipe 10 is preferably in the range of 5 to 500 m / sec.

<Flower tube 30>
Returning to FIGS. 1 and 2, the flow path pipe 30 is a tubular body, is arranged on the gas outlet 10b side of the gas supply pipe 10, and is a gas ejected from the gas outlet 10b of the gas supply pipe 10 [G. ] And the liquid [L] in the storage tank in which the air diffuser 1 is arranged. In this flow path pipe 30, one opening is an inlet 30a for a liquid [L] and a gas [G], and the other opening is an outlet 30b for the liquid [L] and the gas [G].

Further, the flow path pipe 30 may be a cylindrical pipe having an inner diameter larger than the outer diameter of the gas supply pipe 10 and having an inner diameter corresponding to the liquid processing capacity. It is assumed that such a flow path pipe 30 is held with its central axis substantially coaxial with the gas supply pipe 10.

Further, this flow path pipe 30 has a plurality of side wall openings 30c on the side wall on the inflow port 30a side. These side wall openings 30c serve as intake ports for the liquid [L]. On the other hand, the flow path pipe 30 has a wide inner diameter on the discharge port 30b side, and the discharge port 30b side of the fluid having a wide inner diameter is configured as an installation portion of the magnetization member 40 (see FIG. 2).

Such a flow path pipe 30 forms a flow of the liquid [L] heading from the inflow port 30a to the discharge port 30b at high speed due to the air lift effect due to the jet flow of the compressed gas [G] from the gas supply pipe 10. .. Further, inside the flow path tube 30, the gas [G] finely dispersed with respect to the liquid [L] flowing at high speed is supplied as a turbulent flow at high speed, so that fine bubbles are supplied with respect to the liquid [L]. A gas-liquid multiphase flow [Lg] in which (micro bubbles) are dispersed is formed.

<Magnetizing member 40>
The magnetizing member 40 is for forming a magnetic field in the flow path tube 30, and is a member for irradiating the magnetic field lines in the vertical direction and radially with respect to the flow of the fluid flowing in the flow path tube 30. Such a magnetizing member 40 is installed on the discharge port 30b side in the flow path tube 30, and is arranged between the magnetizing member 40 and the stirring member 20 via a space portion 31.

FIG. 6 is a plan view of the magnetizing member 40 provided in the air diffuser according to the first embodiment, and is a view of the magnetizing member 40 from the direction of the discharge port 30b of the flow path tube 30 (see FIG. 2). Is. As shown in FIGS. 2 and 6, the magnetizing member 40 has a plurality of magnetic bodies 41 extending in a direction perpendicular to the axial direction z of the flow path tube 30. The plurality of (here, two) magnetic bodies 41 are flat plates arranged in parallel, and the flat plate surfaces are arranged parallel to the axial direction z of the flow path tube 30, and the magnetic bodies 41 facing each other are arranged. The spacer 42 is sandwiched between the two. As a result, the magnetic field lines are irradiated in the vertical direction and radially with respect to the flow of the gas-liquid multiphase flow [Lg] in the flow path tube 30, and the gas-liquid mixed phase flow [Lg] is magnetized. The magnetic body 41 and the spacer 42 are fixed by, for example, a long screw 43 and a nut 44 penetrating the magnetic body 41 and the spacer 42, and the space between the two opposing magnetic bodies 41 is maintained at a predetermined pitch.

The magnetic material constituting such a magnetic material 41 is composed of a composite material containing at least one of neodymium, dysprosium, samarium, indium, manganese, chromium, iron, copper, cobalt, nickel, boron, and ferrite. It is assumed that there is. The magnetic material is not limited to these, and may be any material that forms a magnetic field.

The components other than the magnetizing member 40 constituting the air diffuser 1 shall be configured by using a material appropriately selected from plastics such as vinyl chloride and polypropylene, and metals such as iron, stainless steel and aluminum. Can be done.

-How to disperse-
Next, the operation of the air diffuser 1 described with reference to FIGS. 1 to 6 will be described as an air diffuser method. Such an air diffuser 1 is used in a state of being submerged in the liquid [L] in the storage tank (not shown here), and the liquid [L] in the storage tank is contained in the flow path pipe 30. Filled. In this state, the compressed gas [G] is introduced from the gas supply source 200 into the gas supply pipe 10. Then, the gas [G] introduced from the gas supply source 200 is finely dispersed by the stirring member 20 arranged in the gas supply pipe 10, and the finely dispersed gas [G] is put into the flow path pipe 30. Inject at high speed.

As a result, the air lift effect of the gas [G] ejected from the gas supply pipe 10 forms a circulation path of the liquid [L] from the gas supply pipe 10 side to the discharge port 30b side in the flow path pipe 30. At the same time, in the space portion 31 of the flow path pipe 30, the gas [G] finely dispersed by the stirring member 20 is turbulently flowed at high speed with respect to the liquid [L] flowing into the flow path pipe 30. It is supplied to form a gas-liquid multiphase flow [Lg] in which fine bubbles (micro bubbles) are dispersed with respect to the liquid [L].

Next, the magnetizing member 40 provided on the discharge port 30b side of the flow path tube 30 irradiates the magnetic field lines in the direction perpendicular to and radially with respect to the flow of the gas-liquid multiphase flow [Lg] to perform the magnetization treatment. The gas-liquid mixed phase flow [Lg] is discharged from the discharge port 30b as the treated liquid [La].

-Effect of the first embodiment-
Since the air diffuser 1 and the air diffuser method of the first embodiment described above have a configuration in which a gas-liquid multiphase flow [Lg] containing microbubbles having a large specific surface area is magnetized, the gas-liquid multiphase flow [Lg] It is possible to carry out a magnetization process with high irradiation efficiency of magnetic field lines. As a result, if the liquid [L] is water, hydrogen bonds between water molecules can be effectively broken by the magnetization treatment, and more free radicals (OH ⁻ ) can be generated and activated by the plasma phenomenon. It will be possible. As a result, it becomes possible to obtain a treated liquid [La] having a high treatment effect of suppressing the activity of bacteria and microorganisms as a fine bubble-containing liquid.

Further, as described above, in the flow path tube 30, the gas [G] finely dispersed with respect to the liquid [L] flowing at high speed is supplied as a turbulent flow at high speed, so that the gas-liquid multiphase flow [Lg] is supplied. To form. Therefore, the gas-liquid multiphase flow [Lg] and the treated liquid [La] obtained by magnetizing the gas-liquid multiphase flow [Lg] can be expected to have a bactericidal action and a water treatment effect by ultrasonic waves generated by the cavitation effect. Further, it is also possible to dissipate the gaseous substance contained in the liquid [L] into the gas [G] and remove it from the liquid [L] by the gas-liquid contact action.

<< Second Embodiment >>
-Air diffuser-
FIG. 7 is a diagram showing the overall configuration of the air diffuser 2 according to the second embodiment. The air diffuser 2 shown in this figure is installed at the bottom of a relatively large liquid storage tank, and is for processing by dispersing the gas [G] in the liquid [L] stored in the storage tank. ..

The difference between the air diffuser 2 shown in this figure and the air diffuser 1 of the first embodiment is that a large diameter flow path pipe 60 having a diameter larger than that of the flow path pipe 30 is additionally provided, and the large diameter flow path pipe 60 is provided. A stirring member that functions as a mixing member 70 is additionally arranged inside. Further, the magnetizing member 40'is not arranged in the flow path tube 30, but is provided in the large-diameter flow path tube 60. Since the other configurations are the same as those of the air diffuser 1 of the first embodiment, the same components as those of the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.

<Large diameter flow path pipe 60>
The large-diameter flow path pipe 60 is a tubular body and is arranged on the discharge port 30b side of the flow path pipe 30, and the gas-liquid multiphase flow [Lg] discharged from the flow path pipe 30 and the air diffuser 2 are arranged. It becomes a flow path through which the liquid [L] in the storage tank is passed. In such a large-diameter flow path pipe 60, one opening is an inflow port 60a and the other opening is an discharge port 60b.

Further, the large-diameter flow path pipe 60 may be a cylindrical tube having an inner diameter larger than the outer diameter of the flow path pipe 30 and having an inner diameter corresponding to the liquid processing capacity. Such a large-diameter flow path pipe 60 supports the flow path pipe 30 from four directions by, for example, four plate-shaped supports 61, and the central axis is substantially coaxial with the flow path pipe 30 and the gas supply pipe 10. It is assumed that it is held in. It is assumed that these supports 61 are arranged parallel to the axial direction of the large-diameter flow path pipe 60 without hindering the inflow of the liquid [L] into the large-diameter flow path pipe 60.

<Mixing member 70>
The mixing member 70 is a stirring member arranged inside the large-diameter flow path pipe 60, and the stirring member is used as a member for mixing different fluids. This mixing member 70 is for finely dispersing and mixing the gas-liquid multiphase flow [Lg] discharged from the flow path pipe 30 and the liquid [L] taken in from the inflow port 60a of the large-diameter flow path pipe 60. It is a member of. Such a mixing member 70 may have any configuration as long as it uses, for example, a blade body 21 similar to the stirring member 20 described with reference to FIGS. 4 and 5 in the first embodiment. Can be used.

That is, referring to FIGS. 4 and 5, the mixing member 70 has a configuration in which a plurality of blades 71 project inside the large-diameter flow path pipe 60, and each blade 71 has a fan shape having a plurality of perforations 71a. It is formed from a perforated plate of. Each of these blades 71 is spirally fixed to the wall portion of the large-diameter flow path pipe 60, and the large-diameter flow path pipe 60 is located in the center of the large-diameter flow path pipe 60 provided with the plurality of blades 71. It is assumed that a flow path 72 (see FIG. 5) in which the blade body 71 is not arranged is formed in the central portion when viewed from the axial direction.

Returning to FIG. 7, such a mixing member 70 is arranged at the central portion in the axial direction of the large-diameter flow path pipe 60, maintains a space portion 62 between the large-diameter flow path pipe 60 and the discharge port 30b, and will be described below. It is assumed that the space portion 63 is maintained between the magnetizing member 40'and the magnetizing member 40'. However, it is preferable that the winding direction of the spiral of the blade body 71 constituting the mixing member 70 is opposite to the winding direction of the spiral of the blade body 21 constituting the stirring member 20.

Further, in the large-diameter flow path pipe 60, a plurality of mixing members 70 may be arranged in series via a space portion. In this case, it is preferable that the spiral winding directions of the blades 71 constituting each mixing member 70 are alternately opposite to each other.

The above mixing member 70 spirals the gas-liquid multiphase flow [Lg] introduced from the flow path pipe 30 and the liquid [L] introduced from the inflow port 60a of the large-diameter flow path pipe 60 into a spiral of the blade body 71. The spiral flow flowing along the flow path 72, the straight flow traveling straight through the flow path 72, and the split flow flowing through each of the perforations 71a formed in the blade body 71 are separated and merged. The gas-liquid multiphase flow [Lg] passing through the mixing member 70 and the liquid [L] introduced from the inflow port 60a of the large-diameter flow path pipe 60 are divided and rotated by repeating separation and merging in this way. , Is continuously subjected to shearing action and mixed. As a result, a gas-liquid multiphase flow [Lg'] containing supermicrobubbles in which fine bubbles (microbubbles) in the gas-liquid multiphase flow [Lg] are further subdivided and dispersed is formed, and a large-diameter flow path tube is formed. It is ejected into the space 63 of 60.

<Magnetized member 40'>
The magnetizing member 40'is for forming a magnetic field by alternately arranging permanent magnets having different north and south poles in the large-diameter flow path tube 60, and the flow of fluid flowing in the large-diameter flow path tube 60. On the other hand, it is a member for irradiating magnetic field lines in the vertical direction and radially. Such a magnetizing member 40'is installed on the discharge port 60b side in the large-diameter flow path tube 60, and is arranged between the magnetizing member 40'and the mixing member 70 via the space portion 63.

FIG. 8 is a plan view of the magnetizing member 40'provided to the air diffuser according to the second embodiment, and is a view of the magnetizing member 40' from the axial direction z of the large-diameter flow path tube 60. As shown in FIGS. 7 and 8, in the magnetizing member 40', plate-shaped magnetic bodies 41 arranged in parallel with the axial direction of the large-diameter flow path tube 60 are arranged so as to face each other, and spacers are provided between the facing magnetic bodies 41. It has a configuration in which 42 is sandwiched. As a result, the magnetic field lines are irradiated in the large-diameter flow path tube 60 in the direction perpendicular to and radially with respect to the flow of the gas-liquid multiphase flow [Lg'] flowing between the magnetic bodies 41 arranged opposite to each other, and the gas-liquid multiphase flow. [Lg'] is magnetized. The magnetic body 41 and the spacer 42 are fixed by, for example, a long screw 43 and a nut 44 penetrating the magnetic body 41 and the spacer 42, whereby the space between the plurality of opposed magnetic bodies 41 is kept at a predetermined pitch [P]. I'm leaning.

In the illustrated example, the magnetizing member 40'in which 4 to 5 pieces (4 pieces in the drawing) of the magnetic body 41 are fixed and the structure 40a is stacked in 5 layers (see FIG. 7) is shown. As the magnetic material 41, the material described in the first embodiment is used.

-How to disperse-
Next, the operation of the air diffuser 2 described with reference to FIGS. 7 and 8, and further with reference to FIGS. 4 and 5, will be described as an air diffuser method. Such an air diffuser 2 is used in a state of being subsided in a storage tank (not shown here), and the liquid [L] in the storage tank is contained in the flow path pipe 30 and the large-diameter flow path pipe 60. Filled. In this state, the compressed gas [G] is introduced from the gas supply source 200 into the gas supply pipe 10. As a result, as described in the first embodiment, a gas-liquid multiphase flow [Lg] in which fine bubbles (microbubbles) are dispersed with respect to the liquid [L] is formed.

Next, the formed gas-liquid mixed phase flow [Lg] is ejected into the large-diameter flow path pipe 60, and the air lift effect due to the ejection of the gas-liquid mixed phase flow [Lg] is directed toward the discharge port 60b side in the large-diameter flow path pipe 60. It forms a circulation path for the liquid [L]. Then, the gas-liquid multiphase flow [Lg] and the liquid [L] taken into the large-diameter flow path tube 60 are mixed in the mixing member 70, and fine bubbles (micro bubbles) in the gas-liquid mixed phase flow [Lg] are mixed. Is further dispersed to form a gas-liquid multiphase flow [Lg'] containing supermicrobubbles.

Next, the magnetizing member 40'provided on the discharge port 60b side of the large-diameter flow path tube 60 irradiates the magnetic field lines in the vertical direction and radially with respect to the gas-liquid multiphase flow [Lg'] containing the super microbubbles to magnetize. The treated and magnetized gas-liquid multiphase flow [Lg'] is discharged as a treated liquid [La'] from the discharge port 60b of the large-diameter flow path pipe 60.

-Effect of the second embodiment-
According to the second embodiment described above, the gas-liquid multiphase flow [Lg'] containing the super microbubbles in which the bubbles (microbubbles) of the first embodiment are further subdivided and dispersed is magnetized. be. Therefore, it is possible to generate more free radicals (OH ⁻ ) as compared with the first embodiment. Moreover, the super microbubbles themselves have a function of generating free radicals (OH ⁻ ). Therefore, it is possible to obtain a treated liquid [La'] having a higher treatment effect of suppressing the activity of bacteria and microorganisms as a fine bubble-containing liquid than in the first embodiment, and the gaseous substance having a higher treatment effect. It is possible to obtain a removal effect.

<< Third Embodiment >>
-Air diffuser-
FIG. 9 is a diagram showing the overall configuration of the air diffuser 3 according to the third embodiment. The third embodiment is a modification of the second embodiment. The difference between the air diffuser 3 of the third embodiment shown in this figure and the air diffuser 2 of the second embodiment is that the flow path pipe 30 is not provided, and the gas supply pipe 10 is directly connected to the large diameter flow path pipe 60. It is in the place where it is supported by. Further, the stirring member 20 is not provided in the gas supply pipe 10.

That is, the air diffuser 3 of the third embodiment includes a gas supply pipe 10, a large-diameter flow path pipe 60, a mixing member 70 as a stirring member provided in the large-diameter flow path pipe 60, and a magnetization member 40'. There is. These members have the same configuration as each member described in the first embodiment and the second embodiment. However, the large-diameter flow path pipe 60 supports the gas supply pipe 10 from four directions by, for example, four plate-shaped supports 61', and the central axis is held substantially coaxially with the gas supply pipe 10. I will do it.

-Effect of the third embodiment-
Even in the air diffuser 3 having such a configuration, the gas-liquid multiphase flow [Lg] formed by mixing the gas [G] and the liquid [L] with the mixing member 70 is magnetized. , It becomes possible to obtain a treated liquid [La] having a high treatment effect of suppressing the activity of bacteria and microorganisms as a liquid containing fine bubbles. Further, it is also possible to dissipate the gaseous substance contained in the liquid [L] into the gas [G] and remove it from the liquid [L] by the gas-liquid contact action.

<< Fourth Embodiment >>
-Water treatment equipment-
FIG. 10 is a diagram showing the overall configuration of the water treatment device 4 according to the fourth embodiment. The water treatment device 4 shown in this figure has a configuration using at least one of the air diffusers 1 to 3 according to the first to third embodiments described above. In the following, as an example, a configuration using the air diffuser 1 of the first embodiment will be described.

This water treatment device 4 is an aeration treatment tank provided with a liquid [L] storage tank 400 and an air diffuser 1.

Of these, the storage tank 400 is for storing the liquid [L] to be treated by the water treatment device 4. The liquid [L] before treatment is supplied to the storage tank 400 from the raw water supply line 401. Further, the storage tank 400 is provided with a discharge line 402 for discharging the treated liquid [La] after treatment. The discharge line 402 is connected to a position in the storage tank 400 including the waterline, and the treated liquid [La] is discharged from the vicinity of the waterline.

The air diffuser 1 is arranged at the bottom of the storage tank 400 and is used in a state of being submerged in the liquid [L] stored in the storage tank 400. The air diffuser 1 is arranged at the bottom of the storage tank 400 with the gas supply pipe 10 on the lower side and the flow path pipe 30 on the upper side, with their axial directions substantially vertical. As a result, referring to FIG. 2, the air diffuser 1 is arranged at the bottom of the storage tank 400 so that the magnetizing member 40 is arranged above the stirring member 20. Further, the air diffuser 1 arranged in this way has a configuration in which the gas supply source 200 is connected to the gas supply pipe 10. Although only one air diffuser 1 is shown in the figure, a plurality of air diffusers 1 may be subsided in the liquid [L] and used, and the present invention relates to the first to third embodiments. The air diffuser 1 to 3 may be used in combination. In this case, the plurality of air diffusers may be connected in parallel to, for example, the gas supply source 200.

-Effect of the fourth embodiment-
According to the water treatment device 4 (FIG. 10) having such a configuration, the gas [G] compressed from the gas supply source 200 is supplied to the gas supply pipe 10 of the aeration device 1 and stored in the storage tank 400. The resulting liquid [L] can be taken into the air diffuser 1 for aeration treatment. Therefore, the liquid [L] taken in from the storage tank 400 is returned to the storage tank 400 again as a treated liquid [La] having a high treatment effect of suppressing the activity of bacteria and microorganisms and circulated, and the liquid in the storage tank 400 is circulated. [L] can be efficiently sterilized. Further, when the fine particles are dispersed in the liquid [L] in the storage tank 400, the fine particles in the liquid [L] are floated on the liquid surface together with the microbubbles and together with the treated liquid [La] from the discharge line 402. Can be discharged. Thereby, it is also possible to remove fine particles from the liquid [L] in the storage tank 400. It is also possible to dissipate the gaseous substance contained in the liquid [L] into the gas [G] and remove it from the liquid [L].

The water treatment device 4 is not limited to such a configuration, and the air diffuser 1 is erected at the bottom of the storage tank 400 so that the magnetizing member 40 is arranged below the stirring member 20. May be done. In this case, it is possible to obtain the effect of preventing the solid matter such as dust and fibers settled in the liquid [L] in the storage tank 400 from being caught or staying in the air diffuser 1.

<< Fifth Embodiment >>
-Air diffuser-
FIG. 11 is a diagram showing the overall configuration of the air diffuser 5 according to the fifth embodiment. Further, FIG. 12 is a cross-sectional perspective view of the air diffuser 5 according to the fifth embodiment. The air diffuser 5 shown in these figures is installed at the bottom of the liquid storage tank and used to disperse the gas [G] in the liquid [L] stored in the storage tank for processing. .. Such an air diffuser 5 includes a gas supply pipe 80, a stirring member 20 provided in the gas supply pipe 80, a flow path pipe 90 communicating with the gas supply pipe 80, and a mixing member provided in the flow path pipe 90. The stirring member 20 is the same as that of the first embodiment, and the mixing member 70 is the same as that of the second embodiment. Therefore, in the following, stirring is provided. The components other than the member 20 and the mixing member 70 will be described in order.

<Gas supply pipe 80>
The gas supply pipe 80 is a tubular body and is configured as an injection nozzle for ejecting the compressed gas [G], and includes a main pipe 81, a branch pipe 82, and an ejection pipe 83.

[Main piping 81]
The main pipe 81 is inserted into the flow path pipe 90 described below and is held substantially coaxially with the flow path pipe 90. The main pipe 81 has one opening protruding from the flow path pipe 90 as a gas introduction port 80a connected to the gas supply source 200. The gas introduction port 80a has a flange structure for flange-connecting the supply line from the gas supply source 200. Further, the other opening of the main pipe 81 is configured to be branched into a plurality of branch pipes 82.

[Branch pipe 82]
The branch pipe 82 is obtained by branching the other opening of the main pipe 81 into a plurality of branches. For example, it is assumed that four branch pipes 82 are provided in four directions perpendicular to the main pipe 81. It is assumed that each branch pipe 82 reaches from the branch portion from the main pipe 81 to the inner wall of the flow path pipe 90 described below, and is closed at a position close to the inner wall or the inner wall of the flow path pipe 90. ..

[Extrusive pipe 83]
The ejection pipe 83 is connected to each branch pipe 82 at the peripheral wall of each branch pipe 82, and is arranged substantially parallel to the main pipe 81 toward the gas introduction port 80a side of the main pipe 81. The ejection pipe 83 has an opening at the tip extending from the branch pipe 82 as a gas outlet 80b for ejecting gas into the flow path pipe 90 described below. That is, the gas supply pipe 80 is provided with a plurality of (here, four) gas outlets 80b.

Then, the stirring member 20 is housed inside each of such ejection pipes 83. The stirring member 20 is the same as that described in the first embodiment, and the compressed gas [G] introduced into the gas supply pipe 80 from the gas supply source 200 is finely dispersed and flow path pipe. It is a member for ejecting into 90.

<Flower tube 90>
The flow path pipe 90 is a tubular body and is provided so as to accommodate the gas outlet 80b side of the gas supply pipe 80, and the gas [G] ejected from the gas outlet 80b of the gas supply pipe 80 and the gas [G] thereof. It is a member that serves as a flow path for passing the liquid [L] in the storage tank in which the air diffuser 5 is arranged. In such a flow path pipe 90, the opening on the gas outlet 80b side of the gas supply pipe 80 is used as the inflow port 90a of the liquid [L], and the other opening is used as the discharge port 90b of the liquid [L] and the gas [G]. There is.

Further, the flow path pipe 90 may be a cylindrical pipe having an inner diameter larger than the outer diameter of the gas supply pipe 80 and having an inner diameter corresponding to the liquid processing capacity. It is assumed that such a flow path pipe 90 is held with its central axis substantially coaxial with the main pipe 81 of the gas supply pipe 80. The branch pipe 82 of the gas supply pipe 80 is laid in four directions in the pipe radial direction in the flow path pipe 90, but the flow path pipe 90 is in a state of being opened in the gap between the branch pipes 82 and flows. The road pipe 90 is configured to be open in two directions, the inflow port 90a and the discharge port 90b.

Further, this flow path pipe 90 has a plurality of side wall openings 90c on the side wall on the inflow port 90a side. These side wall openings 90c serve as intake ports for the liquid [L].

Then, inside such a flow path pipe 90, a mixing member 70 as a stirring member is housed at a position facing the gas outlet 80b of the gas supply pipe 80. The mixing member 70 is the same as that described in the second embodiment, and the gas [G] supplied from the gas supply pipe 80 and the liquid [L] in the flow path pipe 90 are finely dispersed. It is a member for converting and mixing. In the mixing member 70, a flow path 72 (see FIG. 5) in which the blade 71 is not arranged is formed in the central portion of the flow path pipe 90 when viewed from the axial direction, and the gas supply pipe described above is formed in the flow path 72. The main pipe 81 of 80 is in a state of being laid.

<Magnetized member 40 ">
The magnetizing member 40 "is for forming a magnetic field in the flow path tube 90, and is a member for irradiating the magnetic field lines in the vertical direction and radially with respect to the flow of the fluid flowing in the flow path tube 90. Such a magnetizing member 40 ”is arranged on the discharge port 90b side in the flow path pipe 90, surrounding the main pipe 81 of the gas supply pipe 80, with the space portion 92 between the magnetizing member 40 and the mixing member 70. ..

The magnetizing member 40 "has a structure in which plate-shaped magnetic bodies 41 arranged in parallel with the axial direction of the flow path tube 90 are arranged so as to face each other, and a spacer is sandwiched between the facing magnetic bodies 41. As a result, magnetic lines of force are irradiated vertically and radially by the two magnetic bodies 41 to the flow of the gas-liquid mixed phase flow [Lg'] containing the super microbubbles formed by the mixing member 70, and the gas-liquid mixed phase flow [Lg'] is magnetized.

-How to disperse-
Next, the operation of the air diffuser 5 described with reference to FIGS. 11 and 12 will be described as an air diffuser method. Such an air diffuser 5 is used in a state of being submerged in the liquid [L] in the storage tank (not shown here), and the liquid [L] in the storage tank is filled in the flow path pipe 90. Will be done. In this state, the compressed gas [G] is introduced from the gas supply source 200 into the gas supply pipe 80. Then, the gas [G] introduced from the gas supply source 200 is finely dispersed by the stirring member 20 arranged in the ejection pipe 83 of the gas supply pipe 80, and the finely dispersed gas [G] is passed through the flow path. It is injected into the tube 90 at high speed.

As a result, the air lift effect of the gas [G] injected from the gas supply pipe 80 forms a circulation path of the liquid [L] from the inflow port 90a to the discharge port 90b side in the flow path pipe 90. At the same time, in the space 91 of the flow path pipe 90, the gas [G] finely dispersed by the stirring member 20 is turbulently flowed at high speed with respect to the liquid [L] flowing into the flow path pipe 90. It is supplied to form a gas-liquid multiphase flow [Lg] in which fine bubbles (micro bubbles) are dispersed with respect to the liquid [L].

The formed gas-liquid multiphase flow [Lg] is further mixed in the mixing member 70 to further disperse fine bubbles (microbubbles) in the gas-liquid mixed phase flow [Lg], and the gas-liquid mixed phase flow containing super microbubbles is further dispersed. Form [Lg'].

Next, the magnetizing member 40 "provided on the discharge port 90b side of the flow path tube 90 irradiates the magnetic field lines in the direction perpendicular to and radially with respect to the gas-liquid multiphase flow [Lg'] to perform the magnetization treatment. The gas-liquid multiphase flow [Lg'] is discharged as a treated liquid [La'] from the discharge port 90b of the flow path pipe 90.

-Effect of the fifth embodiment-
According to the fifth embodiment described above, the gas-liquid multiphase flow [Lg'] containing supermicrobubbles in which bubbles (microbubbles) are further subdivided and dispersed is magnetized. Therefore, it is possible to generate a large amount of free radicals (OH ⁻ ) as compared with the first embodiment. Moreover, the super microbubbles themselves have a function of generating free radicals (OH ⁻ ). Therefore, it is possible to obtain a treated liquid [La'] having a higher treatment effect of suppressing the activity of bacteria and microorganisms as a fine bubble-containing liquid than in the first embodiment.

<< 6th Embodiment >>
-Water treatment equipment-
FIG. 13 is a diagram showing the overall configuration of the water treatment apparatus 6 according to the sixth embodiment. The water treatment device 6 shown in this figure has a configuration using the air diffuser 5 according to the fifth embodiment described above, and the other configurations are the same as the water treatment device according to the fourth embodiment. Therefore, the overlapping description with the water treatment apparatus of the fourth embodiment will be omitted.

That is, the water treatment device 6 is an aeration treatment tank provided with a liquid [L] storage tank 400 and an air diffuser 5. The air diffuser 5 is arranged at the bottom of the storage tank 400 and is used in a state of being subsided in the liquid [L] stored in the storage tank 400. The air diffuser 5 is arranged at the bottom of the storage tank 400 with the gas introduction port 80a of the gas supply pipe 80 facing upward and the inflow port 90a of the flow path pipe 90 facing downward, with their axial directions substantially vertical. As a result, referring to FIGS. 11 and 12, the air diffuser 5 is arranged at the bottom of the storage tank 400 so that the magnetizing member 40 ”is arranged above the mixing member 70 as the stirring member. The air diffuser 5 arranged in this way has a configuration in which the gas supply source 200 is connected to the gas supply pipe 80. Although only one air diffuser 5 is shown in the figure, a plurality of air diffusers 5 are shown. The air diffuser 5 may be used by submerging it in the liquid [L], or may be used in combination with the air diffusers 1 to 3 according to the first to third embodiments. In this case, a plurality of air diffusers 5 may be used in combination. The air diffuser may be connected in parallel to, for example, the gas supply source 200.

-Effect of the sixth embodiment-
According to the water treatment device 6 having such a configuration, the liquid [G] stored in the storage tank 400 is supplied by supplying the gas [G] compressed from the gas supply source 200 to the gas supply pipe 80 of the aeration device 5. L] can be taken into the air diffuser 5 and aerated. Therefore, the liquid [L] taken in from the storage tank 400 is returned to the storage tank 400 and circulated as a gas-liquid mixed phase flow [Lg'] having a high effect of suppressing the activity of bacteria and microorganisms, and is circulated in the storage tank 400. The liquid [L] can be efficiently sterilized. If the fine particles are dispersed in the liquid [L] in the storage tank 400, the fine particles in the liquid [L] are floated on the liquid surface together with the microbubbles and treated from the discharge line 402 [La']. Can be discharged with. Thereby, it is also possible to remove fine particles from the liquid [L] in the storage tank 400. It is also possible to dissipate the gaseous substance contained in the liquid [L] into the gas [G] and remove it from the liquid [L].

The air diffuser devices 1 to 3 and 5 and the water treatment devices 4 and 6 described above are the wastewater treatment by the activated sludge (plankton) method and the biofilm method in the aerobic decomposition of the biological treatment method. It can be used as a device. Examples of wastewater to be treated include livestock wastewater treatment, industrial wastewater, industrial wastewater, domestic wastewater, and terminal wastewater from sewerage. Further, the air diffusers 1 to 3 and 5 of each embodiment are not limited to the use as a wastewater treatment device, and are used in the fishery industry such as a water quality improving device for aquaculture ponds, a water purification device for lakes and marshes, and a bill bit. It can be used as a water quality maintenance device and a ballast water treatment device. Further, the air diffuser devices 1 to 3 and 5 and the water treatment devices 4 and 6 of each embodiment can be used as building equipment.

<< 7th Embodiment >>
-Water treatment equipment-
FIG. 14 is a diagram showing the overall configuration of the water treatment apparatus 7 according to the seventh embodiment. The water treatment device 7 shown in this figure includes at least one of the air diffuser 1 to 3 according to the first to third embodiments described above or the air diffuser 5 according to the fifth embodiment. It is the configuration used and is used, for example, for the treatment of contaminated water containing radioactive substances. In the following, as an example, a configuration using the air diffuser 1 of the first embodiment will be described.

The water treatment device 7 is a multi-tower type contaminated water treatment device including a plurality of dissipating towers 700 and an air dissipating device 1, and the dissipating device 1 is housed in each of the dissipating towers 700. .. Here, a configuration using three emission towers 700 will be described, but the number of emission towers 700 may be one, two, or even four or more.

Each diffusion tower 700 is a vertical container with a cylindrical upper and lower opening closed, and the lower part is used as a storage tank for storing liquid [L]. The air diffuser 1 is arranged at the bottom of each diffuser tower 700 and is used in a state of being subsided in the liquid [L] stored in the diffuser tower 700. The arrangement state of the aeration device 1 in the liquid [L] is the same as that of the fourth embodiment (FIG. 10) above, and the lower part of the dispersal tower 700 has the aeration device 1 arranged in the liquid [L]. Functions as an aeration treatment tank.

Here, the three dissipating towers 700 in which the air dissipating device 1 is housed are referred to as a first dissipating tower 700a, a second dissipating tower 700b, and a third dissipating tower 700c. These emission towers 700 constitute a flow path for the liquid [L] and a flow path for the gas [G] connected in series, as described below.

First, the flow path of the liquid [L] will be described. A raw water supply line 701a is connected to the vicinity of the bottom of the first diffusion tower 700a, and the liquid [L] before treatment is supplied as raw water. In this case, the raw water is, for example, contaminated water containing radioactive substances. The position including the waterline of the liquid [L] stored in the first divergence tower 700a and the vicinity of the bottom of the second divergence tower 700b are communicated by the liquid flow path pipe 701b and are communicated via the liquid flow path pipe 701b. The liquid [L] is supplied from the first dissipating tower 700a to the second dissipating tower 700b.

The position of the second diverging tower 700b including the waterline of the liquid [L] and the vicinity of the bottom of the third diverging tower 700c are connected by another liquid flow path pipe 701b, and the second is connected via the liquid flow path pipe 701b. The liquid [L] is supplied from the second dissipating tower 700b to the third dissipating tower 700c. It is assumed that the position including the waterline of the liquid [L] in the second emission tower 700b is lower than the same position in the first emission tower 700a.

Further, a liquid discharge line 701c is connected to a position including the waterline of the liquid [L] in the third emission tower 700c. The liquid discharge line 701c is connected to, for example, an external storage tank, and the treated liquid [La] is discharged to the external storage tank. It is assumed that the position including the waterline of the liquid [L] in the third emission tower 700c is lower than the same position in the second emission tower 700b.

Next, the flow path of the gas [G] will be described. The gas supply line 702a is inserted into the third emission tower 700c near the bottom. The gas supply line 702a is connected to the gas supply pipe 10 (see FIGS. 1 and 2) of the air diffuser 1 housed in the third diffuser tower 700c and the gas supply source 200. The gas [G] supplied from the gas supply source 200 is, for example, compressed air pressurized to about 300 mmAq to 1000 mmAq, 3 kPaG to 10 kPaG, but may be another gas. Further, the gas [G] supplied from the gas supply source 200 may be a gas compressed to about 0.1 MPaG to 1 MPaG. As a result, the gas [G] is supplied from the gas supply source 200 to the air diffuser 1 housed in the third diffuser tower 700c. The aeration device 1 in the third dissipating tower 700c makes the gas [G] from the gas supply source 200 fine bubbles (micro bubbles) with respect to the liquid [L] stored in the third dissipating tower 700c. Disperse as and allow aeration, dissipation and chemical reactions to proceed.

The top of the third diffuser tower 700c and the gas supply pipe 10 (see FIGS. 1 and 2) of the air diffuser 1 housed in the second diffuser tower 700b are connected by a gas flow path pipe 702b. There is. As a result, the gas [G] rising in the third dissipating tower 700c is supplied to the air dissipating device 1 housed in the second dissipating tower 700b. The aeration device 1 in the second dissipating tower 700b finely disperses the gas [G] supplied from the third dissipating tower 700c with respect to the liquid [L] stored in the second dissipating tower 700b. Disperse as bubbles (microbubbles) to promote aeration, dissipation and chemical reactions.

The top of the second diffuser tower 700b and the gas supply pipe 10 (see FIGS. 1 and 2) of the air diffuser 1 housed in the first diffuser tower 700a are connected by a gas flow path pipe 702b. There is. As a result, the gas [G] rising in the second dissipating tower 700b is supplied to the air dissipating device 1 housed in the first dissipating tower 700a. The aeration device 1 in the first dissipating tower 700a finely disperses the gas [G] supplied from the second dissipating tower 700b with respect to the liquid [L] stored in the first dissipating tower 700a. Disperse into bubbles (microbubbles) to promote aeration, dissipation and chemical reactions.

Further, a gas discharge line 702c is connected to the top of the first emission tower 700a. The gas discharge line 702c is connected to, for example, an external gas treatment facility. The gas treatment facility is a facility for treating gaseous radioactive substances such as radon, krypton, and tritium.

-Effect of the seventh embodiment-
According to the water treatment device 7 (FIG. 14) having such a configuration, by supplying the compressed gas [G] to the aeration device 1, the liquid [L] stored in the dispersal tower 700 is dissipated by the aeration device 1. It can be taken into the air and treated with aeration. Therefore, similarly to the water treatment apparatus of other embodiments, the liquid [L] in each emission tower 700 can be efficiently aerated, and fine particles can be removed from the liquid [L] in the emission tower 700. It can be removed. When the liquid [L] supplied from the raw water supply line 701a is contaminated water containing radioactive substances, it is suspended in contaminated water such as fissionable substances such as uranium and plutonium, and strontium and cesium. Ultrafine radioactive substances can be levitated to the liquid surface together with microbubbles. Thereby, the treated liquid [La] in which these radioactive substances are concentrated can be discharged from the liquid discharge line 701c and recovered.

Further, the gaseous radioactive substance is emitted from the aerated liquid [L] in the emission tower 700, and the concentrated gas containing the gaseous radioactive substance can be recovered from the gas discharge line 702c. ..

And in particular, this water treatment device 7 constitutes a flow path of liquid [L] in which a plurality of diffusion towers 700 are connected in series by a liquid flow path pipe 701b. Further, the water treatment device 7 constitutes a flow path of gas [G] in which a plurality of emission towers 700 are connected in series by a gas flow path pipe 702b. As a result, the liquid [L] is continuously aerated in the order of the first dissipating tower 700a, the second dissipating tower 700b, and the third dissipating tower 700c. Therefore, the ultrafine radioactive substances floating on the surface of the liquid [L] by the aeration treatment are released from the waterline in the order of the first emission tower 700a, the second emission tower 700b, and the third emission tower 700c. It is sent to 700 and highly concentrated from low concentration to high concentration. As a result, the treated liquid [La], which is a highly concentrated radioactive substance in the form of ultrafine particles, can be discharged from the third emission tower 700c to the outside of the system and can be separated and stored.

Further, the gas [G] continuously aerates the liquid [L] in the order of the third dissipating tower 700c, the second dissipating tower 700b, and the first dissipating tower 700a. Therefore, the liquid [L] or the gaseous radioactive substance released by the aeration treatment is the top of each dissipating tower 700 in the order of the third dissipating tower 700c, the second dissipating tower 700b, and the first dissipating tower 700a. Is sent to the next emission tower 700 and is highly concentrated from a low concentration to a high concentration. As a result, the gas [G] containing a high concentration of gaseous radioactive substances can be released to the outside of the system and recovered and treated by an external gas treatment facility.

<< Eighth Embodiment >>
-Air diffuser-
FIG. 15 is a diagram showing the overall configuration of the air diffuser 8 according to the eighth embodiment. The air diffuser 8 shown in this figure is installed inside a multi-tower type or single-tower type diffuser tower, and is used to disperse and process the gas [G] in the liquid [L] supplied in the diffuser tower. belongs to.

The air diffuser 8 shown in this figure has a configuration in which a mixing member 70 (hereinafter referred to as FIG. 4 and FIG. 5) and a magnetizing member 40'(hereinafter referred to as FIG. 8) are sequentially provided in the flow path tube 800. belongs to. The mixing member 70 and the magnetizing member 40'are arranged in order along the axial direction z of the flow path tube 800 via the space portion 801.

The flow path pipe 800 is a tubular body that also serves as a gas supply pipe, and has, for example, a configuration in which a plurality of blades 21 constituting the mixing member 70 are arranged from the inner wall of the flow path pipe 800 to the inside of the flow path pipe 800. be. The spiral winding direction of the blade 21 of the mixing member 70 may be any of the left and right directions.

In this air diffuser 8, of the openings on both sides of the flow path pipe 800, the opening 800a on the mixing member 70 side is the inflow port of the gas [G] and the discharge port of the liquid [L]. Further, the opening 800b on the magnetizing member 40'side is an outlet for the gas [G] and an inlet for the liquid [L].

Such an air diffuser 8 is arranged with the mixing member 70 side facing downward and the magnetizing member 40'side facing upward. Then, in the flow path tube 800, the gas [G] is supplied from the opening 800a on the mixing member 70 side located below, and the liquid [L] is supplied by spraying from the opening 800b on the magnetizing member 40'side located below. To.

A plurality of mixing members 70 may be arranged in series inside the flow path pipe 800 via a space portion. Further, a plurality of mixing members 70 and magnetizing members 40'may be alternately arranged inside the flow path tube 800. In these cases, it is preferable that the spiral winding directions of the blades 21 constituting each mixing member 70 are alternately opposite to each other.

-Effect of the eighth embodiment-
According to the air diffuser 8 (FIG. 15) having such a configuration, the gas [G] containing bubbles finely dispersed by the mixing member 70 is contained in the liquid [L] magnetized by the magnetizing member 40'. Will be supplied. As a result, the droplet-shaped liquid [L] in which the hydrogen bonds between the water molecules are effectively separated by the magnetization treatment is mixed with the gas [G] finely dispersed by the mixing member 70, and the liquid [L] is mixed. ] From the inside, it is possible to effectively dissipate gaseous substances (for example, radioactive substances).

<< 9th Embodiment >>
-Water treatment equipment-
FIG. 16 is a diagram showing the overall configuration of the water treatment apparatus 9 according to the ninth embodiment. The water treatment device 9 shown in this figure includes the air diffuser 8 according to the eighth embodiment described above, and the air diffuser 1 to 3 according to the first to third or fifth embodiments described above. It is a configuration using at least one of 5. This water treatment device 9 is used, for example, for treating contaminated water containing a radioactive substance. In the following, the water treatment device 9 will be described as a configuration using the air diffuser 1 of the first embodiment together with the air diffuser 8 according to the eighth embodiment.

The water treatment device 9 includes a diffuser tower 900, an air diffuser 1 (hereinafter referred to as a first air diffuser 1), and an air diffuser 8 (hereinafter referred to as a second air diffuser 8). It is a single-tower type contaminated water treatment device, and the first air diffuser 1 and the second air diffuser 8 are housed in the diffuser 900.

The diffusion tower 900 is a tubular body, which is a vertical container with the upper and lower openings closed, and the lower part is used as a storage tank for storing the liquid [L]. The first air diffuser 1 is arranged at the bottom of the diffuser tower 900 and is used in a state of being submerged in the liquid [L] stored in the diffuser tower 900. The arrangement state of the first aeration device 1 in the liquid [L] is the same as that of the fourth embodiment (FIG. 10) above, and the lower portion of the dissipating tower 900 is the first disperser in the liquid [L]. It functions as an aeration treatment tank in which the air device 1 is arranged. Although only one air diffuser 1 is shown in the figure, a plurality of air diffusers 1 may be subsided in the liquid [L] and used, and the air diffuser according to each of the above-described embodiments may be used. It may be used in combination. In this case, the plurality of air diffusers may be connected in parallel to, for example, the gas supply source 200.

Further, the second air diffuser 8 has a tubular portion in the center of the diffuser tower 900 as a flow path pipe 800, and is installed above the liquid [L] stored in the bottom of the diffuser tower 900. The second air diffuser 8 is installed in the diffuser tower 900 with the mixing member 70 side facing downward and the magnetizing member 40'side facing upward.

Further, in the diffuser tower 900, the raw water supply line 901 is connected above the second air diffuser 8. A sprinkler member 902 is connected to the tip of the raw water supply line 901. The sprinkler member 902 has a shower head shape, and the liquid [L] supplied from the raw water supply line 901 is sprayed in the form of droplets over the inner diameter of the sprinkler tower 900. The droplet-shaped liquid [L] sprayed from the sprinkler member 902 is supplied to the second air disperser 8 and passes through the second air disperser 8 to be mixed and magnetized, and further. It is in gas-liquid contact in a state of being divided into fine particles, and is stored in the bottom of the dissipative tower 900.

A liquid discharge line 903 is connected to the bottom of the dissipating tower 900, and the liquid [L] stored in the dissipating tower 900 is discharged as a treated liquid [La]. The liquid discharge line 903 is connected to, for example, an external storage tank.

Further, a gas supply line 904 is inserted near the bottom of the diffusion tower 900. The gas supply line 904 is connected to the gas supply pipe 10 (see FIGS. 1 and 2) of the air diffuser 1 housed in the diffuser tower 900 and the gas supply source 200. As a result, the diffuser tower 900 is configured to supply high-pressure gas (for example, air) from the first air diffuser 1 arranged at the bottom.

A gas discharge line 905 is connected to the top of the emission tower 900. As a result, the high-pressure gas (for example, air) supplied from the gas supply source 200 to the diffuser tower 900 via the first air diffuser 1 is discharged from the gas discharge line 905 to the outside. The gas discharge line 905 is connected to, for example, an external gas treatment facility. The gas treatment facility is a treatment facility for increasing and immobilizing gaseous radioactive substances such as radon, krypton, and tritium.

-Effect of the ninth embodiment-
According to the water treatment device 9 (FIG. 16) having such a configuration, the raw water of the liquid [L] sprayed from the sprinkler member 902 in a droplet state is mixed and mixed by passing through the second sprinkler device 8. It comes into gas-liquid contact by being divided into fine particles that have been magnetized. As a result, the gaseous substance is aerated from the liquid [L] and is in a purified state. Further, the liquid [L] that has been aerated in this way and stored in the bottom of the dissipating tower 900 can be aerated by the first aeration device 1 immersed in the liquid [L]. Therefore, the aeration treatment of the liquid [L] and the aeration of the gaseous radioactive substance from the liquid [L] can be efficiently and effectively performed by the two-step treatment. Then, the gas [G] containing the gaseous concentrated radioactive substance can be separated and recovered from the gas discharge line 905.

<< 10th Embodiment >>
-Water treatment equipment-
FIG. 17 is a diagram showing the overall configuration of the water treatment apparatus 100 according to the tenth embodiment. The water treatment device 100 shown in this figure is a modified example of the water treatment device 9 according to the ninth embodiment described above. The difference between the water treatment device 100 shown in this figure and the water treatment device 9 according to the ninth embodiment described above is that the second air diffuser 8 is provided in multiple stages (three stages as an example in the drawing). It is a multi-stage tower type, and a chimney tray 1001 and a connection line 1002 are provided between them. Other configurations are the same as those of the water treatment apparatus 9 according to the ninth embodiment. Although a plurality of first air diffusers 1 are arranged on the bottom of the diffuser tower 900, the air diffuser 1 may be one as in the ninth embodiment, as described above. The air diffuser according to each embodiment may be used in combination. Hereinafter, the configurations of the chimney tray 1001 and the connection line 1002 will be described.

The chimney tray 1001 includes a tray 1001a for storing the liquid [L] supplied from above, a penetrating portion 1001b for passing the gas [G] in the vertical direction, and a cap 1001c for chasing the penetrating portion 1001b.

The connection line 1002 is drawn out of the diffuser tower 900 from the vicinity of the waterline of the tray 1001a in the chimney tray 1001 arranged at the upper part, and is connected to the diffuser tower 900 at the upper part of the second air diffuser 8 arranged at the lower part. To. A sprinkler member 902 is connected to the tip of the connection line 1002. The sprinkler member 902 has a shower head shape, and supplies the liquid [L] supplied from the connection line 1002 in the form of droplets over the inner diameter of the sprinkler tower 900.

As a result, the liquid [L] stored in the tray 1001a of the upper chimney tray 1001 is supplied to the lower part via the connection line 1002 and supplied to the second air diffuser 8 arranged in the lower part by the sprinkler member 902. It is configured to be.

-Effect of the tenth embodiment-
According to the water treatment device 100 (FIG. 17) having such a configuration, by arranging the second air diffuser 8 in multiple stages via the chimney tray 1001, the raw water of the liquid [L] is continuously distributed in multiple stages. It can be magnetized and mixed, and can be divided into fine particles and brought into gas-liquid contact. As a result, as compared with the ninth embodiment, the effect of highly concentrating the gaseous radioactive substance in the liquid [L] from a low concentration to a high concentration is high. In addition, it has a high effect of gradually lowering the concentration of gaseous radioactive substances in the liquid [L] to purify them.

The air diffuser 8 and the water treatment devices 7, 9 and 10 of the seventh to tenth embodiments described above are not limited to being used for treating contaminated water containing radioactive substances, and may be used for other water treatment facilities. Can also be applied. Further, as the gas [G] used in the 7th to 10th examples, compressed air is usually used, but in particular, ultrafine uranium, plutonium, strontium, cesium, and gaseous radon and krypton are used. When using the water treatment equipment of the present application for the treatment of liquids containing radioactive substances such as tritium, by using an inert gas consisting of a single species or a composite species such as nitrogen, helium, and argon, emission, aeration, etc. Separation, recovery, and concentration efficiency can be further improved.

1,2,3,5,8 ... Air diffuser 4,6,7,9,100 ... Water treatment device (aeration treatment tank)
10,80 ... Gas supply pipe (tubular body)
10a, 80a ... Gas inlet 10b, 80b ... Gas outlet 20 ... Stirring member 21 ... Blade 21a ... Drilling 22 ... Flow path 30, 90 ... Flow tube (tubular body)
30a, 90a ... Inlet 30b, 90b ... Outlet 31, 91, 92 ... Space 40, 40', 40 "... Magnetized member 41 ... Magnetic material 60 ... Large diameter flow path tube 60a ... Inlet 60b ... Outlet 70 ... Mixing member (stirring member)
71 ... Blade 71a ... Drilling 72 ... Flow path 80 ... Gas supply pipe 200 ... Gas supply source 400 ... Storage tank 700a ... First dissipating tower 700b ... Second dissipating tower 700c ... Third dissipating tower 701a, 901 ... Raw water supply line 701b ... Liquid flow path pipe 701c, 903 ... Liquid discharge line 702a ... Gas supply line 702c, 905 ... Gas discharge line 702b ... Gas flow path pipe 900 ... Dissipation tower 1001 ... Chimney tray 1002 ... Connection line [L] ... Liquid [G] ... Gas

Claims (21)

1. Tubular body and
   A stirring member, each of which is composed of a plurality of blades each having a plurality of perforations, and the plurality of blades are arranged spirally in the same winding direction while holding a flow path in the center.
   An air diffuser provided inside the tubular body and provided with a magnetizing member that magnetizes the fluid in the tubular body.
2. The air diffuser according to claim 1, wherein each of the blades is provided so as to project from the inner wall of the tubular body to the inside of the tubular body.
3. The air diffuser according to claim 1 or 2, wherein the stirring member and the magnetizing member are arranged inside the tubular body through a space portion along the extending direction of the tubular body.
4. The air diffuser according to any one of claims 1 to 3, wherein the stirring member is provided as a mixing member for mixing different fluids.
5. The air diffuser according to any one of claims 1 to 4, wherein a plurality of the stirring members are arranged inside the tubular body through a space portion along the extending direction of the tubular body. ..
6. The air diffuser according to claim 5, wherein the plurality of stirring members arranged adjacently with each other via the space portion have the winding directions of the blades opposite to each other.
7. The tubular body is
   A gas supply pipe that ejects compressed gas from a gas outlet,
   It has an inner diameter larger than the outer diameter of the gas supply pipe, and one opening is used as an inlet for the gas ejected from the gas outlet of the gas supply pipe and the liquid flowing in by the air lift effect of the gas, and the other. The opening is composed of a flow path pipe serving as an outlet for a gas-liquid mixed phase flow in which the gas and the liquid are mixed.
   The stirring member is fixed inside at least one of the gas supply pipe and the flow path pipe.
   The air diffuser according to any one of claims 1 to 6, wherein the magnetizing member is provided on the discharge port side in the flow path tube.
8. The air diffuser according to claim 7, wherein the stirring member is arranged inside the gas supply pipe and inside the flow path pipe via a space portion.
9. The gas supply pipe has a screw structure that is screwed into a pipe extending from a compressed gas supply source.
   The stirring member is arranged in the gas supply pipe.
   The air diffuser according to claim 7 or 8, wherein the spiral winding direction of the blade body in the stirring member is opposite to the winding direction of the screw structure.
10. The gas supply pipe is inserted into the flow path pipe from the discharge port side of the flow path pipe, branches into a plurality of branches on the inflow port side of the flow path pipe, and the discharge port of the flow path pipe at each branched portion. It has a plurality of said gas outlets that eject the compressed gas toward the side.
    The air diffuser according to any one of claims 7 to 9, wherein the stirring member is provided at each branch portion of the gas supply pipe.
11. According to any one of claims 1 to 10, the magnetizing member has a structure in which a plurality of plate-shaped magnetic bodies arranged in parallel with the extending direction of the tubular body are held in parallel at intervals. Described air diffuser.
12. The air diffuser according to any one of claims 1 to 11.
    A water treatment device including a storage tank for storing a liquid to be supplied to the air diffuser.
13. The water treatment device according to claim 12, wherein the air diffuser is arranged at the bottom of the storage tank so that the magnetizing member is arranged above the stirring member.
14. The water treatment device according to claim 12, wherein the air diffuser is arranged at the bottom of the storage tank so that the magnetizing member is arranged below the stirring member.
15. The water treatment device according to any one of claims 12 to 14, wherein a gas supply source for supplying a compressed gas is connected to a tubular body of the air diffuser arranged at the bottom of the storage tank.
16. The storage tank is composed of the lower part of a divergence tower that closes the openings on both sides of the tubular container.
    The water treatment apparatus according to any one of claims 12 to 15, wherein a gas discharge line is provided at the top of the diffusion tower.
17. The water treatment apparatus according to any one of claims 12 to 16, wherein the liquid discharge line is provided at a position including the draft line of the liquid in the storage tank.
18. It is provided with a plurality of the diffuser towers accommodating the air diffuser.
    The liquid discharge line is provided in one of the plurality of diffuser towers, and the gas supply source is connected to the air diffuser housed therein.
    In another one of the plurality of emission towers, the liquid supply line and the gas discharge line are provided.
    The plurality of dissipators are connected in series from the top of one dissipator by a gas channel tube extending from the top of the dissipator to the tubular body of the disperser disposed inside the other dissipator, and the other dissipators. The water treatment apparatus according to claim 16 or 17, which is connected in series by a liquid flow path pipe extending from a position including a water line of the tower to the one diffuser tower.
19. A separate air diffuser is provided above the waterline of the liquid in the diffuser, in which the stirring member and the magnetizing member are arranged via a space along the extending direction of the diffuser.
    The water treatment apparatus according to claim 12 to 16, wherein a raw water supply line for supplying the raw water of the liquid is provided above the other stirring member in the diffusion tower.
20. The water treatment apparatus according to claim 19, wherein the liquid discharge line is provided at the bottom of the storage tank.
21. A plurality of the other air diffusers are arranged inside the diffuser tower along the extending direction of the diffuser tower.
    Between the plurality of different stirring members, a chimney tray and a connection line for supplying the liquid stored in the chimney tray to the other air diffuser arranged at the bottom of the chimney tray are provided. The water treatment apparatus according to claim 19 or 20.

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