TW592795B - Tiny bubbles generator and a device for generating tiny bubbles of said tiny bubble generator - Google Patents

Abstract

This invention is to provide a device for generating tiny bubbles, which has a great productivity. The purpose of the present invention is to productively produce tiny bubbles into water tank, swimming pool, river, lake, dam, farm, coast, transportation water for keeping fresh fish or air fluid chemical reaction tank of chemical facilities so as to provide tiny bubbles generator which can prevent any jam caused by reaction articles and dirt and which can produce efficiently tiny bubbles.

Description

592795 V. Description of the invention (2) The air bubbles mixed with the liquid in the inside become coarsely ejected, which cannot fully ensure the contact area of the liquid and air bubbles to be treated, and it has the problem that the amount of dissolved oxygen or reaction efficiency cannot be improved. (2) Because the gas introduction hole is opened at the bottom of the conical space, the liquid containing bubbles can only be discharged in one direction, while controlling the discharge state of the water flow. It can be used in a wide range by rivers or water purification equipment. Problems with carrying out a lot of water treatment.

(3) Liquids and gases are mixed in a conical space. Therefore, there is a limit to supply a large amount of gas, and it is difficult to control the mixing rate of liquids and gases in the regulations. • (4) When the pressure in the conical space is changed when the pump is turned on or off, the liquid flows back into the gas introduction hole, and the solid material mixed in the liquid easily plugs the gas introduction hole, which has the problem of continuous operation. (5) In order to make the air bubbles finer in the pressurized space, the liquid will flow into the gas introduction hole, and there is a problem that the operability becomes poor.

(6) In the technology described in Bulletin B, because the air outlet of the air pipe is arranged near the injection port of the mixing chamber, the water flow and air rotating in the mixing chamber will not directly contact, while maintaining the rotating water flow and air in a prescribed contact. Area-effective contact has a problem that fine bubbles of a predetermined size or shape cannot be generated. (7) The air pipe with an open end is arranged near the outlet of the nozzle, so the fluid flows back to the air pipe due to the pressure change in the nozzle, and the air pipe is easily blocked due to dust and other factors mixed in the liquid and cannot be continuously operated. question. (8) 592795 did not control the size or amount of fine bubbles formed in the water flow. 5. Description of the invention (3) The device sucks more than the required amount of air from the air pipe and forms large bubbles without obtaining fine bubbles. A problem that a sufficient massage effect or washing effect cannot be obtained. In order to solve the above-mentioned previous problems, the present invention is used in a tank, a swimming pool, a river, a dam, or the like, or in a pond or aquaculture farm, or in fresh water (sea water), or a gas-liquid reaction tank in a chemical plant. A large amount of fine bubbles with a large gas-liquid contact area can be generated in the liquid, providing a fine bubble generator capable of stable and continuous operation without clogging of reactants or dirt, providing a large amount and efficient generation of fine bubbles. The liquid contact area is extremely large, and it can increase the dissolved oxygen (gas), and at the same time, it is a micro bubble generating device with excellent productivity. [Inspiration of the Invention] To solve the above problems, the micro-bubble generator of the present invention and the micro-bubble generator provided with such a generator have the following configurations. The micro-bubble generator described in item 1 of the scope of patent application of the present invention includes a device body formed with a hollow portion approximately rotationally symmetrically, a gas introduction hole opened in a peripheral wall portion of the device in a tangential direction, and opening in the hollow portion. The gas-liquid ejection hole is provided in the direction of the rotational symmetry axis. With this structure, the following effects can be obtained. (1) When the gas-liquid is introduced into the body from the gas-liquid introduction hole, and the gas-liquid mixed fluid flows in from the tangential direction, the gas-liquid mixed flow system mixes gas-liquid from the side that rotates sharply along the inner wall of the body and rotates to the hollow portion The gas ejection hole side moves in the direction of the symmetry axis. At this time, according to the difference between the specific gravity of the liquid and the gas, the liquid acts on the centrifugal force, and the gas acts on the centripetal force, causing the large bubbles to converge on the central axis to form a negative 592795. 5. Description of the invention (4) Compression axis (gas axis). From the negative pressure axis, the external liquid near the gas ejection hole acts as a force to enter the micro-bubble generator (hereinafter, the liquid acting on this force is called negative pressure liquid). On the one hand, when the gas-liquid mixed fluid in the micro-bubble generator is closer to the gas-liquid ejection hole while rotating, the rotation speed increases and the pressure increases at the same time. The rotation speed and pressure near the gas-liquid ejection hole become maximum. It is in a pushing state with the negative pressure liquid. Therefore, the gas collected on the negative pressure axis passes through the gap formed by the negative pressure liquid and the rotating gas-liquid mixed fluid, and the gas-liquid mixed fluid mixed with fine air bubbles is cut off from the gas-liquid ejection hole to the external liquid while being sheared. in. (2) The gas-liquid mixed flow system diffused by the negative pressure liquid is subjected to a shearing force between the gas in the gas-liquid mixed fluid of the negative pressure axis and the peripheral wall of the gas-liquid ejection hole. The gas is divided into extremely fine particles and is ejected from the gas-liquid ejection hole together with the mixed fluid, so that a large amount of fine bubbles can be generated in the external liquid. (3) A gas-liquid mixed fluid in which gas and liquid are mixed in advance is supplied to the gas-liquid inlet hole, so the mixing ratio of the gas can be adjusted, and thus it can be generated while controlling the generation rate of fine bubbles. (4) The mixed fluid containing micro-bubbles can be sufficiently brought into contact with the liquid to be treated, and the amount of dissolved oxygen or reaction efficiency can be improved. (5) The mixed fluid containing micro-bubbles can be discharged over a wide range in rivers, dams, etc., and can be used for biological treatment with high efficiency. (6) When a micro-bubble generator is used in a gas-liquid reaction device or a sewage treatment device, the residual pressure (negative pressure) in the device is used when the pump is ON / OFF, etc. When the fluid flows countercurrently in the device, the micro-bubble is generated. The device has no pores for receiving gas-6-592795 V. Description of the Invention (5) etc., so the reactants or dirt will not cause blockage, and it has excellent durability without maintenance. (7) The particle size of the fine bubbles is remarkably small, so the contact area between gas and liquid can be enlarged, the reaction in the gas-liquid reaction device, or the purification device can promote purification. In addition, it is possible to increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fish transport vehicles.

Here, the micro-bubble generator is used for purifying water purification plants or rivers, purifying urinating livestock products, supplying oxygen during live fish transportation or breeding, and increasing the amount of dissolved oxygen during hydroponic cultivation. Treatment of dirty water, removal of limes in water storage tanks, sterilization, sterilization, deodorization with ozone mixture, promotion of blood circulation during bathing, promotion of fermentation and culture of washing machines, fermented foods. Dissolution and neutralization by high-density contact of various drugs with various gases. Promotes gas-liquid reactions and facial scrubbers in gas-liquid reaction equipment in chemical plants.

As the liquid, water or chemical liquid, chemical reaction liquid, liquid fuel, etc. are used. As the gas, it is used in the state of sewage treatment tanks, such as air, swimming pools, etc., when the water is sterilized, ozone, and reaction gases (HCN, HC1, so2, N02, etc.). The hollow body is formed into a generally rotationally symmetrical body with a spherical shape, a hemispherical shape, a shell shape, and a conical shape. The bottom surfaces of the hemispherical shapes are formed by a cylindrical portion or not. When conical or conical shaped bodies are used, the hollow part has a shape that gathers air from its rotationally symmetric axial gas-liquid ejection hole. Therefore, the gas-liquid mixture rotating in the body is agitated. Shearing force and high viscosity fluid can be fully agitated: In addition, when the shell is in the shape of a cannonball, truncated cone or hemisphere with a rear wall, the liquid guide is 592795. 5. Description of the invention (6) Part of the liquid flowing into the body of the tube Because it moves to the rear wall side and then reverses, it rotates around the negative pressure axis and moves to the side of the gas-liquid ejection hole, so it can be used as a jet stream with a straight forward property. In addition, the shape of the back wall can be recessed in the hollow portion, and the movement of the mixed fluid can be changed. The gas-liquid introduction hole is perforated in the peripheral wall of the body by more than one, and the tangential direction of the peripheral wall is connected to a gas-liquid introduction pipe for introducing a gas-liquid mixed fluid or liquid. From this, the supply port of the pump or tap water is connected to the gas-liquid inlet pipe to pressurize the water to generate a swirling flow in the body. The flow velocity of the liquid flowing into the device through the gas introduction hole, the diameter of the liquid introduction tube, the volume of the device, etc., are the amount of fine bubbles produced by the gas-liquid mixed fluid at the required flow velocity of the rotating flow or The form such as the bubble diameter can be appropriately selected. The gas-liquid ejection hole is configured to open in the direction of the axis of rotational symmetry of the hollow part. The gas-liquid ejection hole is a narrow body that is gathered from the rear side to the front side, depending on the size of the body or supplied to The fluid flow of the body. Pressure, etc. may also vary, but its minimum diameter d is the largest internal diameter D of the hollow portion, which is 1/50 to 1/3 times, and preferably about 1/30 to 1/5 times. This is when the minimum diameter d of the gas-liquid ejection hole is gradually smaller than 1/30 times the maximum inner diameter D of the device body, it is shown that it is difficult to ensure the required liquid discharge flow rate, and when it exceeds 1/5 times, Cannot be formed: the rotating flow of liquid in the body, the attractive force at the center of the ejected water flow tends to be insufficient. These tendencies become less than 1/50 times, or super i 1/3 times. Not ideal 〇-8-

592795 V. Description of the invention (7) The angle (α) between the straight line connecting the gas-liquid introduction hole and the center of the device and the straight line connecting the gas-liquid ejection hole and the center of the device is 10 ° < α < 170 °, preferably 45 ° < α < 160 °. When α < 160 °, the fluid flowing from the gas-liquid introduction hole to the gas-liquid ejection hole tends to cause a short path. Although the shear force applied to the fluid when α < 45 ° becomes strong, the particle size of the air bubbles becomes different. Stability is not ideal. It is generally appropriate to use around 90 °. The micro-bubble generator described in the second item of the patent application scope is the invention described in the first item of the claim, and the gas-liquid ejection holes are respectively formed on the left and right sides of the axis of rotational symmetry. . And it is constituted that, in addition to the function of item 1 of the request, the following work tb ° (1) is obtained. The gas and liquid ejection outlets are respectively set on the left and right sides of the axis of rotation symmetry of the hollow portion, so a micro-bubble generator is used. Expanding the range that can be processed and efficiently performing water treatment by micro-bubble generators, etc., are superior to productivity and convenience. (2) Change the diameter of the gas-liquid ejection holes respectively arranged on the left and right sides of the axis of rotation symmetry, and set guides to make them have different ejection characteristics. The ejection state of the fine bubbles can be controlled to a prescribed state, and from this Efficient water treatment, etc. (3) There are two gas-liquid ejection holes, so the ejection amount of the gas-liquid mixed fluid discharged from the micro-bubble generator can be doubled compared with a single hole, and a large amount of water treatment can be performed. The micro-bubble generator described in claim 3 is based on the invention described in claim 1 or 2. The gas-liquid ejection hole is provided with an enlarged diameter of 592795 in the ejection direction. 5. Description of the invention (8) The inclined portion is configured to incline The angle is set within the specified range. According to this structure, in addition to the functions of item 1 or 2, the following functions will be obtained. (1) The inner peripheral wall of the gas-liquid ejection hole has an inclined portion with a diameter enlarged at a predetermined angle toward the ejection side. Therefore, the range of diffusion of the gas-liquid mixed fluid containing micro-bubbles or the gas before becoming micro-bubbles can be limited to a predetermined angle. To reduce the pressure in the mixed fluid, the partial pressure reduction can effectively generate fine bubbles in the mixed fluid. (2) The pressure, flow rate, temperature, etc. of the supplied water or fluid are adjusted according to the angle of the inclined portion or the length of the ejection direction, and the size or bubbles of the fine bubbles diffused in the mixed fluid can also be delicately changed. Collection form and so on. (3) When the gas-liquid ejection holes are arranged on both sides of the axis of rotational symmetry, the gas-liquid mixed fluid ejected from the entire micro-bubble generator can be given a specific directivity by making the inclination angles of the inclined portions different. Controllability in chemical reaction tanks or purification layers. Here, the angle of the inclined portion is 0, which is also changed by the size of the body used, the flow rate and pressure of the water or liquid supplied, and the length of the inclined portion, but 30 to 160 degrees, preferably in the range of 65 to 130 degrees. ideal. This is because the angle 0 of the inclined portion is smaller than 65 °, and the generation of fine bubbles tends to become smaller. Conversely, when the angle exceeds 130 degrees, the mixed fluid containing the fine bubbles diffuses over a wide range. Depending on the impact force of the mixed fluid, the tendency to decrease will decrease. The reason for the enhancement. In addition, such a tendency is that the angle 0 of the inclined portion becomes smaller than 30 degrees or becomes more significant when exceeding 160 degrees, which is not desirable. Then, the gas-liquid ejection holes are set on both sides of the body -10- 5. In the description of the invention (9), the left and right sides of the above-mentioned angle range are different inclination angles, and the discharge from the fine bubble generator can be controlled The direction of the outflow. Set the inclination angle to 120 ° ± 10 ° or 75 ° ± 10 °. At 120 ° ± 10 °, the central axis (negative pressure axis) of the body will continuously increase the amount of gas as the fluid moves, so Along the negative pressure liquid surface that is strongly sucked in, the ejection liquid is intended to go out, and the ejection liquid is dispersed in a direction perpendicular to the axis. At this time, the bubbles are made finer by the maximum shearing force acting in the smallest gap portion. This part is adjacent to the maximum pressure and the maximum negative pressure, which promotes the generation of fine bubbles. On the one hand, the inclination angle is 75 degrees ± 10 degrees, and the liquid flowing forward becomes stronger than the larger angle side to eject strongly. Therefore, when viewed as a whole, the ejection flow system flows toward the side of the small inclination angle, which can make it directional. The angle 0 of the inclined portion is a parameter that determines the shape of the negative pressure liquid, and the ejection direction is controlled by setting this parameter to a predetermined value. Alas, the occurrence of fine air bubbles is determined by the shape of the negative pressure liquid formed in the minimum diameter d portion, and it is ideal to make it easy to eject from the body. When the gas-liquid mixed fluid is ejected, the flow system flows spherically along the side of the body, and the resistance of the jet with a large inclined side becomes less (that is, the combined effect of the fluid flow to the tangential direction of the spherical surface of the body and the occurrence of negative pressure liquid , The mixed fluid containing micro-bubbles flows on the side after the side of the large inclination angle is opposite to the discharge direction of the mixed fluid). In this way, it can be used to determine the spray direction of the mixed fluid according to the purpose. The micro-bubble generator in the fourth scope of the patent application is any one of the claims 1 to 3, and includes a cover portion arranged at intervals in front of the gas-liquid ejection hole, and extended on the cover portion. The extended portion is fixed to the above device. 11- 5. Description of the invention (10) The structure of the fixed cap portion on the outer peripheral wall. According to this structure, in addition to the functions of any one of the items 1 to 3, the following functions are obtained. (1) The gas-liquid mixed fluid flowing from the gas-liquid introduction hole rotates along the inner wall of the body, and moves to the side of the gas-liquid ejection hole to form a negative pressure axis in an emergency. Due to this, the negative pressure shaft causes the cap portion to act as a force to attract the microbubble generator. On the one hand, the mixed fluid in the container has a maximum rotation speed near the gas-liquid ejection hole, and the cap portions of the fixed cap portion opposite to the gas-liquid ejection hole are pushed to each other. Therefore, the gas collected on the negative pressure axis rotates between the cap portion of the cap portion (the opposite surface of the gas-liquid ejection hole) and the inclined portion of the gas-ejection hole to compress and cut off the gas, together with the gas-liquid mixed fluid in a large amount. The fine bubbles are sprayed out of the liquid from the gas-liquid ejection hole. In this way, the cap portion is cut off from the outer portion, the formation of negative pressure liquid is suppressed to a minimum, the rotation resistance of the ejection from the body becomes smaller, the ejection amount is also increased, and the number of revolutions can be increased. (2) A large number of fine bubbles can be generated in the external fluid, so that the contact area between gas and liquid is large, which can promote the reaction in the gas-liquid reaction device or the purification in the purification device. In addition, it can increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fish transport trucks. (3) The particle size of the fine bubbles is significantly small, so the surface area of the bubbles can be extremely large. It can supply air or reaction gas with high absorption rate or reaction rate, and can be used in sewage or reaction liquid and neutralization liquid. (4) Only by adjusting the inflow or rotation speed of the liquid or gas, the particle size of the micro-bubbles can be freely controlled in the range of several nm to 1 // // m. Here, the method of fixing the cap part is to directly use an adhesive or the like. V. Description of the invention () Method for fixing the extension part on the outer peripheral wall of the device, and a cap is protruded on the outer peripheral wall of the device. The lid supporting portion is a method of fixing the fixed cap portion to the protruding portion, and the like. The micro-bubble generator described in claim 5 of the scope of patent application is the invention described in claim 4 in which the base end side is arranged on the outer peripheral wall of the device body, and the other end side is provided with the other end to support the fixing. The cap support portion is constituted by a cap support portion. According to this component, in addition to the functions of claim 4, the following functions are obtained. (1) The fixed cap portion is fixed to the cap support portion, so the fixed cap portion does not move with respect to the rotation direction of the gas-liquid mixed fluid, and can be effectively operated between the cap portion of the fixed cap portion and the ejected gas. Shearing force can produce a small number of fine bubbles with significant particle size. The micro-bubble generator described in claim 6 of the scope of patent application is an invention described in claim 5 and is composed of a flexible material such as synthetic resin or rubber, and is formed by the cap support portion and / or the fixed cap portion. According to this structure, in addition to the function of claim 5, the following functions are obtained. (1) The cap support portion and / or cap portion is formed of a flexible material, so the cap portion can be moved close to and away from each ejection hole within the allowable range of the deflection of the cap support portion. direction. Therefore, the cap portion is compressed and sheared by the negative pressure axis attracted to the gas-liquid ejection hole side, and the gas ejected from the gas-liquid ejection hole to form a raised portion on the opposite surface of the gas-liquid ejection hole of the cap portion. Break, so finer bubbles can be generated in a large amount. (2) The discharge pressure of the pump or the diameter of the gas-liquid introduction hole or gas-liquid ejection hole, when the shape or volume of the body changes, corresponding to the rotation of the gas-liquid mixed fluid • 13-592795 V. Description of the invention (12) Flow rate Or the flow rate, the size of the space opposite to the gas-liquid ejection hole and the gap between the gas-liquid ejection hole of the cap part of the cap part will change, so it is superior in versatility. The micro-bubble generator described in claim 7 of the scope of patent application is an invention described in any one of claims 4 to 6, wherein the fixed cap portion includes a bulge formed on a surface opposite to the gas-liquid ejection hole. Ministry of Construction. According to this structure, in addition to the functions of any one of claims 4 to 6, the following functions are obtained. (1) Since it has a raised portion that is bent on the protruding shape of the back side of the fixed cap portion, a gas-liquid mixed fluid with fine bubbles can be guided along the surface of the raised portion while flowing. (2) When the material of the cap portion or the cap supporting portion is made of a flexible material, the bulging portion is attracted by the negative pressure axis to the direction of the gas-liquid ejection hole to narrow the flow path, so the fluid ejected from the gas-liquid ejection hole The gas in the middle is compressed and sheared in the bulge, so a finer amount of air bubbles can be generated. Here, as the raised portion, a shape such as a shape other than a gas-liquid ejection hole in a hemispherical shape or a conical shape is used. The micro-bubble generator described in claim 8 of the scope of patent application is an invention described in claim 4 and includes a frame-like frame arranged on the outer peripheral wall of the device, and between the frame-like frame and the gas-liquid ejection hole. It is comprised by the cap part formed in the shape of a ball, an egg, etc. which can be loosely fitted and held loosely. According to this structure, in addition to the function of claim 4, the following functions are obtained. (1) The cap is movably arranged between the gas-liquid ejection hole and the frame-like frame, so the cap is attracted by the negative pressure in the direction of the gas-liquid ejection hole. Explanation (13) The gas system ejected from the liquid ejection hole is compressed and cut by the cap part. Under a certain condition, the interval between the cap part and the gas-liquid ejection hole does not change, and it can maintain a stable water flow state. (2) Depending on the discharge pressure of the pump or the diameter of the gas-liquid introduction hole or gas-liquid ejection hole, the shape or volume of the device changes according to the flow rate or flow rate of the gas-liquid mixed fluid during rotation. The gap between the side of the gas-liquid ejection hole and the gas-liquid ejection hole is superior to the stability and controllability of the water flow. (3) When the negative pressure shaft is formed in the body, the cap part is maintained at a predetermined position by the attraction force of the negative pressure shaft and the force of the ejected gas-liquid mixed fluid in the prescribed position, so there is almost no contact with the frame-like frame or air. The liquid ejection hole is not easy to wear and has superior durability. (4) With a cap, it prevents foreign matter in the external fluid from entering the device when it is turned off. Here, the frame-shaped frame is formed at a predetermined interval before the gas-liquid ejection hole, and is formed by loosely fitting and retaining a cap shape that forms a ball shape or an egg shape in front of the gas-liquid ejection hole. member. The micro-bubble generator described in item 9 of the scope of the patent application is an invention according to any one of claims 1 to 8 and has a groove portion arranged on the rear wall of the device body, and penetrates the groove portion and the device. A groove portion gas self-suction hole formed in a wall portion between the bodies, and a groove portion gas introduction pipe provided in the groove portion. According to this structure, in addition to the functions of any one of claims 1 to 8, the following functions are obtained. -15- 592795 V. Description of the invention (14) (1) Because the groove part is provided, the air suction resistance through the groove gas self-suction hole and the groove gas introduction pipe can be large, and the gas self-absorption in the groove part is increased. When the diameter of the hole is not large, gas cannot be sucked in, and the gas can be sucked in a stable state. (2) The large-capacity groove can ease the pressure fluctuations on the outside, and can easily control the size, shape, and amount of fine bubbles generated in the water stream, which is superior to operability.

(3) Since the diameter of the gas self-suction hole in the groove can be increased, it is not easy to cause malfunction due to clogging of dust or scale, etc., and it is superior in maintainability. Here, the shape of the groove portion is a cylindrical shape, a hemispherical shape, or the like. The pore diameter or number of gas self-suction holes in the groove is appropriately selected according to the necessary attractive force or the speed of the swirling flow, the number or particle size of the fine bubbles.

The micro-bubble generator described in item 10 of the scope of patent application is an invention described in any one of claims 1 to 8 and includes a device provided in the direction of the gas-liquid ejection hole and disposed in the hollow portion. The internal nozzle is composed of an internal hollow portion connected to the rear side of the internal nozzle portion, and a secondary liquid introduction pipe provided in a tangential direction of the internal hollow portion. According to this structure, in addition to the functions of any one of claims 1 to 8, the following functions are obtained. (1) Since it has an internal nozzle that ejects the secondary liquid into the hollow portion, the gas-liquid mixture supplied from the liquid introduction tube and the secondary liquid are effectively brought into contact with each other in the hollow portion, which can produce finer bubbles, which can improve the Productivity in water treatment or chemical reactions. (2) The gas-liquid mixed fluid or liquid continuously flowing from the secondary liquid introduction pipe to the internal hollow portion in a tangential direction is rotated while moving toward the internal nozzle side. -16- 592795 5. Description of the invention (15) Travel. At this time, the center of the swirling flow of the centrifugal force acting on the liquid becomes a negative pressure, so that the gas in the liquid gathers at the center to form a negative pressure axis. On the other hand, the liquid 'flowing into the hollow portion from the gas-liquid introduction hole moves to the gas-liquid ejection hole side while rotating. In this way, the secondary fluid introduction tube and the gas-liquid introduction hole in the hollow portion can merge the supplied fluids and generate a large number of fine bubbles.

(3) A positive or negative gas-liquid mixed fluid can be ejected in the hollow portion from the gas-liquid introduction hole in the direction of rotation from the secondary liquid introduction tube. When the rotation direction of the gas-liquid mixed fluid ejected is opposite to the rotation direction of the liquid in the hollow part, the gas system gathered on the negative pressure axis instantly becomes fine bubbles, mixed with the liquid in the hollow part and ejected from the gas-liquid ejection hole, so the gas-liquid ejection When the holes are arranged in the air, a liquid containing a large number of fine bubbles can be ejected.

(4) In the hollow part, there are no holes for receiving gas, etc. Therefore, when a micro-bubble generator is used in a chemical reaction tank or a gas cleaning tank in a chemical petroleum plant, a sewage treatment tank, etc., when the pump is ON / OFF, etc. Residual pressure is left in the device. When the fluid flows countercurrently, it will not cause blockage by reactants or dirt. (5) It can be made into fine bubbles, so the surface area of the bubbles is very large, and it can supply air or reaction gas to sewage or reaction liquid, neutralizing liquid with high absorption rate or reaction rate. Here, the liquid to be supplied to the secondary liquid introduction pipe may be the same type as the fluid supplying the gas-liquid introduction hole, and water or chemical liquid, reaction liquid, liquid fuel, or the like is used. The internal nozzle part is a conical shape, a spherical shape, a hemispherical shape, a frustum shape, a hemispherical shape, a cannonball shape, and the like. The particle diameter of the gas bubbles ejected from the gas-liquid ejection hole into the fluid ejection is based on the discharge pressure of the fluid from each liquid introduction pipe or the shape of each nozzle according to the rotation speed. The micro-bubble generator according to item π in the scope of the patent application is an invention described in claim ο, which has the internal nozzle portion, the internal hollow portion, and the swirling flow generating portion of the secondary liquid introduction tube, and is provided as described above. The hollow part is made up of a plurality of pieces in a stacking shape (boxes of the same shape and the like are stacked in several combinations in order of size). According to this structure, the function of claim 1 is added to obtain the following functions. (1) Different types of liquids or gases flow into each swirling flow generating part, and can be used to mix more types of liquids or gases. (2) It can manufacture with high oxygen rate by processing mixed fuel in one time, which can improve the combustion efficiency of boilers and the like. (3) Different types of exhaust gas or reaction gas can be supplied to the neutralizing solution, cleaning solution, and reaction solution at the same time. (4) Supplying ozone gas to farms, etc., and then supplying air can achieve high sterilization and high oxygen content. The micro-bubble generator described in item 12 of the scope of the patent application is an invention described in claim 10 or 11. The secondary liquid introduction pipe is the same as the gas-liquid introduction hole opened at the rear side of the internal nozzle portion. Connect in the tangential direction in the opposite or opposite direction. According to this structure, the function of the request item 10 or 11 is added, and the following functions are obtained. (1) The gas-liquid mixed fluid is rotated into the hollow part from the internal nozzle portion, so the gas-liquid mixed fluid and liquid can be efficiently mixed. (2) The rotation force of the liquid from the internal nozzle is added to the rotation of the gas-liquid mixed fluid-18- 592795 V. Description of the invention (17) The force 'has produced a stronger swirling flow. Bubbles spread over a wider area. (3) When the liquid introduction hole connected to the secondary liquid introduction hole or the linearly arranged internal nozzle portion is opened in a tangential direction opposite to the gas-liquid introduction hole, a multi-stage micro-bubble generator can be formed to improve the liquid Absorption or reaction rate of the gas.

(4) A large number of fine bubbles can be ejected from the gas-liquid ejection hole by adjusting the liquid rotation speed in the hollow portion or each internal nozzle portion. The micro-bubble generator described in item 13 of the scope of the patent application is the invention described in any one of claims 1 to 12, and is arranged inside the rear wall of the inner hollow part or inside the rotating liquid generating part at the last end The rear wall of the hollow part is formed by arranging self-suction holes for gas in the internal nozzle part. According to this structure, the function of any one of claims 10 to 12 is added to obtain the following functions.

(1) The gas-liquid mixed fluid or liquid continuously flowing from the secondary liquid introduction pipe to the internal hollow portion in a tangential direction is rotated toward the internal nozzle portion side. At this time, the centrifugal force is applied to the liquid, and the center of the swirling flow becomes a negative pressure. Therefore, the gas is sucked from the suction hole of the internal nozzle, and the sucked gas is collected at the center to form a negative pressure axis. On the one hand, the liquid flowing from the gas-liquid introduction hole into the hollow portion moves side by side to the gas-liquid ejection hole side. In this way, the fluid supplied through the secondary liquid introduction pipe and the gas-liquid introduction hole in the hollow portion merges, and a large number of fine bubbles can be generated. That is, a positive or negative gas-liquid mixed fluid can be ejected from the secondary liquid introduction tube in the hollow portion through the rotation direction and the fluid ejection direction from the gas-liquid introduction hole. -19- 592795 V. Description of the invention (18) The liquid near the internal nozzle is driven by the negative pressure axis of the internal nozzle to enter the internal nozzle. On the one hand, the gas-liquid mixed fluid containing gas from the self-suction holes of the internal nozzle portion is moved while rotating inside the internal nozzle portion. The closer to the ejection hole of the internal nozzle portion, the faster the rotation speed and the higher the pressure, The rotation speed and pressure in the vicinity of the ejection hole at the front end become the maximum and they are in a state of pushing against the negative pressure liquid. The gas-liquid mixed flow system is formed to avoid the negative pressure liquid, and flows out from the vicinity of the edge of the secondary ejection hole. At the time of outflow, the compressed negative pressure axis gas is cut into fine bubbles, sprayed with the gas-liquid mixed fluid out of the hollow part and mixed with the liquid in the hollow part, and then ejected from the gas-liquid ejection hole. (2) It can be made into fine bubbles, so the surface area of the bubbles is very large, and it can supply air or reaction gas to sewage or reaction liquid and neutralizing liquid with high absorption rate or reaction rate. As the gas for supplying the self-suction holes of the gas in the internal nozzle part, air is used when a sewage treatment tank is used, ozone is used for sterilization of water such as a swimming pool, and reaction gas (HCN, HC1, S02, No2, etc.) is used during chemical reaction . The micro-bubble generating device provided with a micro-bubble generator according to item 14 of the scope of the patent application includes: the micro-bubble generator according to any one of claims 1 to 13; and a gas-liquid mixed liquid supplied to the micro-bubble generator. A pump; a gas-liquid suction pipe connected to the suction port of the pump on the downstream side; and a gas-liquid discharge pipe connected to the discharge port of the pump on the upstream side and the gas-liquid introduction hole connected to the fine bubble generator on the downstream side . According to this structure, the following functions can be obtained. (1) When the micro-bubble generator does not have pores for receiving gas, etc., the pump-20- 5. When the NO / OFF of the invention description (19) is left, such as when the residual pressure remains in the device and the fluid flows countercurrently, Can be blocked by fluids or solids. (2) The gas-liquid mixed fluid sucked into the pump is agitated with the liquid according to the moving impeller of the pump, and spit out the gas-liquid discharge pipe from the pump outlet while diffusing air bubbles. (3) The gas-liquid mixed fluid supplied from the gas-liquid discharge pipe to the micro-bubble generator is stirred in the hollow part as fine bubbles. Therefore, compared with the previous technology, fine-grained bubbles can be generated. (4) The gas-liquid mixed fluid flowing from the gas-liquid discharge pipe through the gas-liquid introduction hole into the micro-bubble generator from the tangential direction is a gas-liquid mixture that is rapidly moved by the rotating edge in the hollow part and moves to the gas-liquid ejection hole At the same time, the bubbles gather on the central axis and form a negative pressure axis. The gas-liquid mixed fluid in the micro-bubble generator is rotated closer to the gas-liquid ejection hole, and the rotation speed becomes faster while the pressure becomes higher, and the maximum rotation speed and pressure are formed near the gas-liquid ejection hole, forming mutual interaction with the negative pressure liquid. Pushing state. The gas collected on the negative pressure axis passes through the gap formed by the negative pressure liquid and the rotating gas-liquid mixed fluid while compressing, shearing, and passing through. The fluid containing a large amount of fine bubbles is ejected from the gas-liquid ejection hole to the external liquid. in. Here, the micro-bubble generating device is used for purification of water purification plants or rivers, lakes, dams, dams, purification of urination of livestock products, oxygen supply during transportation of live fish or breeding, and increase in the amount of dissolved oxygen during hydroponic cultivation. Treatment of muddy water floating on sludge, removal of limes in storage tanks, sterilization, sterilization, deodorization by ozone mixing, promotion of blood circulation during bathing, promotion of fermentation and cultivation of washing machines, fermented foods, various drugs and Dissolve and neutralize various gases by high-density contact, -21-592795 in the gas-liquid reaction device of chemical plants V. Description of the invention (%) Promote gas-liquid reactions, facial cleaners, etc. As the pump system, a land-mounted type or a liquid-in-phase pump is used. There are centrifugal pumps, rotary pumps, diagonal flow pumps, and axial flow pumps, which are appropriately determined according to the type or flow rate of the liquid. Alas, because the diameter of the gas-liquid suction pipe or the capacity of the pump is changed, the flow rate of the liquid flowing in the gas-suction pipe will change, so the amount of gas sucked into the gas-liquid suction pipe can be changed. The micro-bubble generating device provided with a micro-bubble generator according to item 15 of the scope of the patent application is based on the invention described in claim 14 and has a suction tube portion gas provided in a predetermined portion of the gas-liquid suction tube. Composed of suction holes. According to this structure, the following functions can be obtained by adding the functions of claim 14. (1) The gas system sucks the gas-liquid suction pipe from the suction hole of the gas through the suction pipe. There is no pores for receiving gas in the micro-bubble generator. Therefore, there is a residual in the device when the pump is ON / OFF. Residual pressure, can not block when the fluid countercurrent. (2) When the pump is driven, a water flow is generated in the gas-liquid suction pipe. According to the effect of the ejector, the gas is sucked from the gas-liquid suction pipe, and the gas in the gas-liquid suction pipe is attracted by the liquid as the accompanying liquid. The gas-liquid mixed fluid containing the gas is sucked into the pump from the suction inlet of the pump. The gas-liquid mixed fluid sucked into the pump is based on the moving impeller of the pump, and the air bubbles are expelled from the pump outlet through the gas-liquid discharge pipe. (3) Since the flow rate of the gas supplied from the suction pipe and the suction hole can be controlled, the amount or size of the fine bubbles can be adjusted appropriately. The micro-bubble generating device provided with a micro-bubble generator described in item 16 of the scope of the patent application is an invention described in claim 15 and has one end connected to the -22- V. Description of the invention (21) The gas connected to the suction pipe The other end of the self-suction hole is a gas introduction pipe which is opened in the air or communicates with the reaction gas container. According to this structure, the functions of claim 15 are obtained as follows. (1) The desired gas can be introduced into the gas-liquid suction pipe by connecting the gas introduction pipe to a desired container or the like. Here, because one end of the gas self-sucking pipe is opened in the air, air can be introduced into the gas introduction pipe, which can increase the amount of dissolved oxygen in the water (sea water) of the aquaculture pond or aquaculture farm and the fresh fish transport truck. A gas-liquid reaction in a gas-liquid reaction device of a chemical plant can be promoted by connecting one end of the gas self-suction pipe to the reaction gas container. The micro-bubble generating device provided with a micro-bubble generator according to item 17 in the scope of the patent application is the invention described in claim 16 and includes a prescribed portion arranged on the gas introduction pipe for adjusting the opening of the gas introduction pipe. The area is composed of a gas flow regulating valve. According to this structure, the function of claim 16 is added, and the following functions are obtained. (1) Since the gas flow adjustment valve can be adjusted to adjust the amount of gas mixed in the liquid, the size of the fine bubbles generated can be adjusted. The micro-bubble generating device having a micro-bubble generator described in claim 18 of the scope of the patent application is an invention described in claim 16 or 17 and is provided with an air pump provided in the prescribed portion of the gas introduction pipe. According to this structure, the functions of claim 16 or 17 are added to obtain the following functions. (1) The gas can be forcibly supplied according to the air pump, so it can increase the amount of -23- 592795 mixed with the gas. 5. Description of the invention (22) The amount of gas. The micro-bubble generating device provided with a micro-bubble generator according to item 19 of the scope of patent application is an invention as described in any one of claims 14 to 18, and the entire pump is immersed in the liquid used in the liquid by the above pump. Composed of pumps. According to this structure, the function of any one of claims 14 to 18 can be obtained as follows. (1) The pump in liquid is disposed in the liquid, so it is not necessary to use the place for the onshore pump, which is superior to the usability. (2) Directly suck fluid from the suction port of the liquid-in-pump. There is no need for gas-liquid suction pipe, so reducing the number of parts is superior to productivity. (3) The suction pipe is open in the liquid, so no residual pressure is applied when the pump in the liquid is ON / OFF, and the fluid in the gas introduction pipe does not flow back and does not cause blockage. The micro-bubble generating device provided with a micro-bubble generator according to item 20 of the scope of the patent application is an invention according to claim 19, wherein the liquid-in-medium pump includes: a moving impeller formed into a vane wheel shape; Suction pipe; the gas-liquid discharge pipe connected to the tangential direction of the peripheral wall of the suction chamber; a suction port for sucking in surrounding liquid with respect to an opening of a rotating shaft portion of the moving impeller; a base opening is arranged near the suction port A gas introduction pipe; and a motor chamber containing a motor for rotating the impeller. According to this structure, the function of claim 19 is obtained as follows. (1) Rotate the moving impeller formed in the shape of a vane wheel in the suction chamber, suck the surrounding liquid from the suction opening opened to the rotating shaft portion of the moving impeller, and collect it into the suction chamber. The gas-liquid discharge pipe can discharge gas-liquid mixed fluid. -24- V. Description of the invention (23) (2) The motor chamber for driving the moving impeller motor and the suction chamber with the moving impeller are integrally formed, so that the overall miniaturization can be superior to portability or ease of installation. Moreover, it can be easily applied to a water purification plant, a sedimentation tank, and the like. The micro-bubble generating device provided with a micro-bubble generator according to item 21 of the scope of the patent application is an invention according to claim 20, wherein the liquid-in-pump is provided with an end opened at the suction port and connected to the gas introduction pipe. The negative pressure part and a predetermined part connected to the gas-liquid discharge pipe at one end side, and the other end side is constituted by a manifold connected to the negative pressure part. According to this structure, the function of claim 20 can be used as follows. (1) The manifold is arranged near the suction port of the liquid pump, so a negative pressure occurs in the manifold, and the negative pressure sucks the gas from the gas introduction pipe into the negative pressure pipe, which can be mixed into the liquid. (2) The inner diameter of the negative pressure tube is larger than the inner diameter of the manifold, so when the fluid flows from the manifold to the negative pressure tube, a negative pressure occurs in the negative pressure tube, and the gas is sucked into the negative pressure from the gas introduction tube accordingly. The tube is mixed with liquid. (3) Since the manifold is opened near the suction port of the liquid pump, no residual pressure fluid will not be applied to the gas introduction tube when the liquid pump is turned on / off, and it will not cause blockage. The micro-bubble generating device provided with a micro-bubble generator according to item 22 of the scope of the patent application is an invention as described in any one of claims 18 to 21, and the moving impeller of the air pump is arranged as a quick action. The pump or liquid pump is composed of a rotating shaft. According to this structure, the function of any one of claims 18 to 21 is added, and the following functions are obtained. -25- 592795 V. Description of the invention (24) (1) No need for a drive unit such as a motor for an air pump, so it is excellent in productivity and can miniaturize the entire device. The micro-bubble generating device provided with a micro-bubble generator according to item 23 of the scope of the patent application is an invention described in any one of claims 14 to 22, and includes a plurality of the micro-bubble generators. The gas-liquid discharge tube is A gas-liquid introduction hole connected to each of the micro-bubble generators is formed. According to this structure, the function of any one of claims 14 to 22 is added, and the following functions are obtained. (1) Using a plurality of micro-bubble generators, a large number of micro-bubbles can be ejected from each gas-liquid ejection hole in a predetermined direction, so the micro-bubbles can be ejected in a wider range. (2) Because the angle of the inclined portion of each gas-liquid ejection hole is adjusted, it is used to control the discharge state of the whole water flow, and then a wide range of water treatment is performed efficiently. [Brief Description of Drawings] Fig. 1 (a) is a perspective view of a main part of a micro-bubble generator according to the first embodiment. Fig. 1 (b) is a front view of the main part of the micro-bubble generator according to the first embodiment. Fig. 1 (c) is a side view of the main part of the micro-bubble generator according to the first embodiment. Fig. 2 is a front view of a main part showing a fluid state inside the micro-bubble generator. Fig. 3 (a) is an oblique view of a main part of the micro-bubble generator according to the second embodiment. Fig. 3 (b) is a front view of a main part of the micro-bubble generator according to the second embodiment. Figure 3 (c) is a side view of the main part of the micro-bubble generator of the second embodiment. -26- 592795 5. Description of the invention (25). Fig. 4 (a) is an oblique view of a main part of the micro-bubble generator according to the third embodiment. Fig. 4 (b) is a front view of a main part of the micro-bubble generator according to the third embodiment. Fig. 4 (c) is a side view of a main part of the micro-bubble generator according to the third embodiment. Fig. 5 (a) is an oblique view of a main part of the micro-bubble generator of the fourth embodiment. Fig. 5 (b) is a front view of the main part of the micro-bubble generator of the fourth embodiment. Fig. 5 (c) is a side view of the main part of the micro-bubble generator according to the fourth embodiment. Fig. 6 (a) is an oblique view of a main part of the micro-bubble generator according to the fifth embodiment. Figure 6 (b) is the main part of the micro-bubble generator of Embodiment 5

fWT graph. Fig. 6 (c) is a side view of the main part of the micro-bubble generator according to the fifth embodiment. Fig. 7 is a view showing the use state of the micro-bubble generating device according to the sixth embodiment. Fig. 8 is a view showing the use state of the fine bubble generating device of the seventh embodiment. Fig. 9 is an internal configuration diagram of a liquid-in-medium pump according to a seventh embodiment. -27 · 592795 V. Description of the Invention (26) Figure 10 is a diagram showing the use state of the micro-bubble generating device in the eighth embodiment. Fig. 11 is an internal configuration diagram of a liquid-in-medium pump and an air pump according to the eighth embodiment. Fig. 12 (a) is a plan view showing a main part of a connection part of a fine bubble generator of the fine bubble generator of the ninth embodiment. Fig. 12 (b) is a side view of a main portion of a connection portion of a micro-bubble generator of the micro-bubble generator of the ninth embodiment. Fig. 13 is a side sectional view of a main part of the micro-bubble generator of Embodiment 10; Fig. 14 (a) is an oblique view of a main part of the micro-bubble generator of the embodiment Π. Fig. 14 (b) is a side view of a main part of the micro-bubble generator according to the eleventh embodiment. Fig. 14 (c) is a front view of a main part of the micro-bubble generator according to the eleventh embodiment. Fig. 15 is a side view showing the main part of the fluid state of the microbubble generator according to the eleventh embodiment. Fig. 16 (a) is an oblique view of a main part of the micro-bubble generator according to the twelfth embodiment. Fig. 16 (b) is a front view of a main part of the micro-bubble generator according to the twelfth embodiment. Fig. 16 (c) is a side view of the main part of the micro-bubble generator according to the twelfth embodiment. Figure 17 shows the fluid state of the micro-bubble generator of Embodiment 12 -28- 592795 V. Description of the invention (27) The front view of the main part of the state. Fig. 18 (a) is an oblique view of a main part of the micro-bubble generator according to the thirteenth embodiment. Fig. 18 (b) is a front view of a main part of the micro-bubble generator according to the thirteenth embodiment. Fig. 18 (c) is a side view of the main part of the micro-bubble generator according to the thirteenth embodiment. Fig. 19 is a front view showing a main part of a fluid state of the micro-bubble generator according to the thirteenth embodiment. Fig. 20 (a) is a perspective view of a fine bubble generator according to the fourteenth embodiment. Fig. 20 (b) is a rear view of the micro-bubble generator according to the twelfth embodiment. Fig. 21 is a configuration diagram of a micro-bubble generating device according to Embodiment 15; Fig. 22 is a side sectional view showing a main part of a fluid state in the micro-bubble generators of Embodiments 14 and 15. Fig. 23 (a) is a perspective view of a micro-bubble generator according to a sixteenth embodiment. Fig. 23 (b) is a rear view of the micro-bubble generator according to the sixteenth embodiment. Fig. 24 is a configuration diagram of a micro-bubble generating device according to Embodiment 17; Fig. 25 (a) is a perspective view of a fine bubble generator according to the eighteenth embodiment. Fig. 25 (b) is a rear view of the micro-bubble generator according to the eighteenth embodiment. Fig. 26 is a configuration diagram of a micro-bubble generating device according to Embodiment 19; Fig. 27 is a side sectional view of a main part of a fluid state in the micro-bubble generators according to the eighteenth and nineteenth embodiments. Fig. 28 (a) is a perspective view of a fine bubble generator according to the twentieth embodiment. 29- 592795 V. Description of the Invention (28) Figure 28 (b) is a rear view of the micro-bubble generator of Embodiment 20. Fig. 29 is a configuration diagram of a fine bubble generating device according to a twenty-first embodiment. Fig. 30 (a) is a perspective view of a fine bubble generator according to a twenty-second embodiment. Fig. 30 (b) is a rear view of the fine bubble generator in Embodiment 22. Fig. 31 is a configuration diagram of a fine bubble generating device according to the twenty-third embodiment. Fig. 32 is a side sectional view of a main part of a fluid state in the micro-bubble generators of the 22nd and 23rd embodiments. Fig. 33 (a) is an oblique view of a main part of the micro-bubble generator according to the twenty-fourth embodiment. Fig. 33 (b) is a side sectional view of a main part thereof. Fig. 34 is a diagram for explaining the use state of the micro-bubble generator according to the twenty-fourth embodiment. Fig. 35 is a side sectional view of a main part of a micro-bubble generator according to a twenty-fifth embodiment. Fig. 36 is a rear cross-sectional view of a main part illustrating the overlap of the gas self-suction pipe and the gas axis of the groove portion in Embodiment 25; [Best Mode for Carrying Out the Invention] (Embodiment 1) The micro-bubble generator according to Embodiment 1 will be described below with reference to the drawings. Fig. 1 (a) is an oblique view of the main part of the micro-bubble generator according to Embodiment 1, Fig. 1 (b) is a front view of the main part, and Fig. 1 (c) is a side view of the main part. -30- 592795 V. Description of the Invention (29) In the first figure, 1 is a micro-bubble generator according to the first embodiment, "la" is a device having a spherical hollow portion, and 16 is a device orthogonal to the device "la" A gas-liquid introduction pipe of a diameter (tangent direction) fixed to the body la is provided. '10 is a gas-liquid introduction hole of the gas-liquid introduction pipe 16 opened in the tangential direction of the body la

Id is a gas-liquid ejection hole provided at both ends of the gas-liquid introduction hole lc of the body la from the diameter direction orthogonal to the center. The gas-liquid ejection hole 1 d is a central axis of the device body 1 a and is disposed at a position slightly offset from the gas-liquid introduction hole 1 c side. From the rotating flow of the gas-liquid mixed fluid flowing into the body 1 a, the negative pressure axis formed between the gas-liquid ejection holes Id and Id, the pressure of the gas-liquid mixed fluid flowing from the gas-liquid introduction hole la is slightly shifted from the pressure Gas-liquid introduction hole 1 c side opposite side. Therefore, due to the position where the negative pressure shaft is formed, the gas-liquid ejection hole is penetrated for 1 d, so that fine bubbles can be generated to the maximum. The straight line connecting the gas-liquid introduction hole lc and the central part of the body la, and the straight line crossing angle (α) connecting the gas-liquid ejection hole 1 d and the center of the body 1 a are 10 ° < α < 170 °, It is preferably 45 ° < α < 160 °, and more preferably varies depending on the type of liquid, but 60 ° < α < 120 ° is used. As α > 120 ° is formed, it is seen that the fluid flowing from the gas-liquid introduction hole lc to the gas-liquid ejection hole Id causes a short path. When α < 60 ° is formed, the shearing force of the fluid becomes stronger, but Seeing that the particle size of the bubbles tends to be unstable, it becomes "> 160 ° or α < 45 °, although it varies depending on the type of liquid, but the tilt direction becomes α > 170 °, α < 10 ° It sometimes becomes larger, so it is not ideal. In particular, it is desirable to set 90 °. For the microbubble generator of the first embodiment configured as described above, its operation will be described below with reference to the drawings. Figure 2 shows the inside of the microbubble generator. Section of the main part of the fluid state -31- 592795

V. Description of the invention (30) State diagram. In Figure 2, the 1-series micro-bubble generator, the la-series body, the ib-series gas-liquid introduction tube, the 1-C-series gas-liquid introduction hole, and the 1d-series gas-liquid ejection hole are the same as in the first figure, so The explanation is omitted by attaching the same symbols. That is, at the edge portion of the gas-liquid ejection hole 1 d of the first embodiment, an expanded curved surface Id is formed on the outside. 1 e is formed by the negative pressure liquid from the outside and the gas-liquid mixed fluid rotating in the body 1 a in the gap of the gas-liquid ejection hole 1 d, and X is the gas-liquid mixed fluid rotating in the body 1 a Formation of negative pressure shaft. When the gas-liquid mixed fluid flows into the device from the gas-liquid introduction hole 1 c (from the tangential direction) 丨 a, the gas-liquid mixed fluid is gas-liquid mixed by rotating rapidly, and moves to the gas-liquid ejection hole 1 d side. . At this time, due to the difference between the specific gravity of the liquid and the gas, the centrifugal force acts on the liquid to form the negative pressure axis X on the center axis side. Further, the liquid phase liquid near the gas-liquid ejection hole 1 d from the negative pressure axis X actuates the force of the external liquid to enter the gas-ejection hole Id. On the one hand, when the gas mixture fluid in the body la rotates and gets closer to the gas-liquid ejection hole Id, the rotation speed becomes faster, and the maximum rotation speed is near the gas-liquid ejection hole Id, which pushes each other with the negative pressure liquid. status. Therefore, the gas collected on the negative pressure axis X passes through the gap le formed by the rotating gas-liquid mixture and the negative pressure as a compressed gas, and becomes a fluid containing a large number of fine bubbles along the curved surface 1 d1 of the fine bubble generator 1. It was sprayed out of the liquid phase from the gas-liquid ejection hole 1 d. At this time, a curved surface Id1 is formed at the edge (side surface) of the gas-liquid ejection hole Id, and the gas is sheared by applying pressure to the curved surface 1 d ', and a finer number of air bubbles become fluid ejection. -32- 592795 V. Description of the invention (31) According to the micro-bubble generator of the first embodiment constructed as above, the following functions are obtained. (1) In the body la of the micro-bubble generator 1, a gas-liquid ejection hole Id is symmetrically positioned on the two sides of the center line of the gas introduction hole 10 as a center, so that micro-bubbles can be widely removed from the micro-bubble generator. Spray on both sides of 1. (2) Since the micro-bubble generator 1 is spherical, the micro-bubble can be sprayed from the gas-liquid ejection hole Id out of the periphery of the body la with a negative pressure of the liquid under a negative pressure. (3) When the gas collected on the negative pressure axis X is ejected, it is compressed by the negative pressure liquid side and is cut off. Therefore, finer and more bubbles can be ejected. (4) When the micro-bubble generator 1 is used in a gas-liquid reaction device or a sewage treatment device, the residual pressure (negative pressure) in the device is used to reverse the flow of the liquid when the pump is ON / OFF, etc. There are no pores or the like for receiving gas, so it will not cause clogging by reactants or dirt. (5) In the micro-bubble generator 1, there are no pores for receiving gas, so that when the pressure in the body 1a is high, it will not cause backflow, so it can supply a large amount of gas-liquid mixed fluid, which can be sprayed than its component. Finer and larger bubbles. (6) Due to the generation of a large number of fine bubbles, the contact area between gas and liquid can be increased, which can promote the reaction in the gas-liquid reaction device, and the purification of rivers, dams, and sewage treatment plants. In addition, it is possible to increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fish transport trucks. (Embodiment 2) Next, a micro-bubble generator of the first embodiment and a micro-bubble generator of other shapes will be described below with reference to the drawings. ___ -33- 592795 V. Description of the invention (32) Figure 3 (a) is an oblique view of the main part of the micro-bubble generator according to the second embodiment, and Figure 3 (b) is a front view of the main part. c) The figure is a side view of the main part. In Fig. 3, the la-type device body, the lb-type gas-liquid introduction tube, the lc-type gas-liquid introduction hole, and the Id-type gas-liquid ejection hole are the same as those in the first embodiment, and their explanations are omitted by attaching the same symbols. 2 is a micro-bubble generator according to the second embodiment, and 2a is integrally formed in a gas-liquid ejection hole Id or a conical truncated nozzle. The micro-bubble generator according to the second embodiment configured as described above, in addition to the function of the first embodiment, has the following functions. (1) According to the arrangement angle of the nozzle 2a, fine bubbles can be sprayed in the desired direction. (2) The nozzle 2a has a shape that throttles in the discharge direction, so that fine bubbles can be sprayed further away. (Embodiment 3) Figure 4 (a) is an oblique view of the main part of the 2-connected microbubble generator of Embodiment 3, Figure 4 (b) is a front view of its main part, and Figure 4 (c) is its Side view of main part. 3 is a two-line type micro-bubble generator of the third embodiment. The 3a'-type spherical portion 3a has two bodies connected in series, and the hollow portions of the two spherical portions 3a communicate with each other. 3b is a gas-liquid introduction tube connected at one end to the communication portion of the two spherical portions 3a, 3c is a gas-liquid introduction tube hole of the gas-liquid introduction tube 3b opened at the tangential direction of the two communication portions of the spherical portion 3a, 3d It is a gas-liquid spray -34- 592795 which is disposed at both ends of the spherical portion 3a of the gas-liquid introduction pipe 3b orthogonal to the axial direction of the gas-liquid introduction pipe 3b. The gas-liquid mixed fluid flowing in from the gas-liquid introduction hole 3c flows in from the tangential direction of each spherical portion 3a of the body 3a '. After moving inside each spherical portion 3a as in the first embodiment, the gas-liquid ejection hole 3a squirts. According to the microbubble generator according to the third embodiment configured as described above, in addition to the function of the first embodiment, the microbubble generator 3 has four gas-liquid ejection holes 3d, so that the function of ejecting microbubbles in a wider range can be obtained. (Embodiment 4) FIG. 5 (a) is a perspective view of a main part of a micro-bubble generator according to Embodiment 4, FIG. 5 (b) is a front view of the main part, and FIG. 5 (c) is a main part thereof Side view. In Fig. 5, 4 is a hemispherical portion of Embodiment 4 and a micro-bubble generator having a cylindrical portion connected to the rear of the hemispherical portion. 4a is a hollow portion forming a hemispherical hemispherical portion, and 4a 'is a bottom portion. Cylindrical part, 4b is a gas-liquid introduction pipe fixed to the cylindrical part 4a 'in a tangential direction, 4c is a gas-liquid ejection hole for the gas-liquid ejection hole 4b opened in the tangential direction to the cylindrical part 4a', and 4d is a The gas-liquid ejection hole is inserted through the hem of the hemisphere 4a. The micro-bubble generator according to the fourth embodiment configured as described above, and the functions (2) to (5) of the first embodiment can be used to spray the gas and liquid ejected in one direction, and it has a function of miniaturization . (Embodiment 5) Fig. 6 (a) is a perspective view of a main part of a micro-bubble generator according to Embodiment 5, Fig. 6 (b) is a front view of the main part, and Fig. 6 (c) is a main part thereof. Side view. -35- 592795 V. Description of the invention (34) In the sixth figure, 5 is a micro-bubble generator according to the fifth embodiment, and 5a is a two cone-shaped body 5al which communicates with a central cylindrical body portion 5a2 with a hollow portion shape. 5b is provided with a gas-liquid introduction tube fixed to the cylindrical portion 5a2 of the body 5a, and 5c is a gas-liquid introduction hole of the gas-liquid introduction tube 5b opened in the tangential direction of the cylindrical portion 5a2. 5d is a gas-liquid ejection hole provided at each top of each conical body 5al. The micro-bubble generator according to the fifth embodiment configured as described above, plus the function of the fourth embodiment, has a shape in which the body 5a gathers from the gas-liquid introduction hole 5c to the gas-liquid ejection hole 5d. The fluid in the body 5a acts as a shear force to obtain a function of sufficiently stirring the fluid having a high viscosity. (Embodiment 6) A micro-bubble generating apparatus according to Embodiment 6 will be described below with reference to the drawings. Fig. 7 is a diagram showing a state of use of the micro-bubble generator in Embodiment 6 equipped with a micro-bubble generator in Embodiment 1. In FIG. 7, 1 is a micro-bubble generator according to Embodiment 1, 11 is a micro-bubble generator according to Embodiment 6, 12 is a pump having a suction port 12 a and a discharge port 12 b, and 1 3 is The gas-liquid suction pipe connected to the suction port 12a of the pump 12 on the downstream side and the gas-liquid discharge pipe 14 connected to the discharge port 12b of the pump 12 on the upstream side and the gas-liquid introduction pipe lb of the microbubble generator 1 on the downstream side. One end of the 15 series is a gas introduction pipe that is open in the air and that passes through a prescribed portion of the gas-liquid suction pipe 13 at the other end side, and is connected to the gas suction hole 15a of the suction pipe. -36- 592795 V. Description of the invention (35) 16 is a gas flow regulating valve provided at a prescribed portion of the gas introduction pipe 15, 17 is provided at the upstream side of the gas-liquid suction pipe 13 to prevent foreign matter from entering The filter 18 is in the liquid phase of the submerged water tank or the sea or swimming pool of the micro bubble generator 1 and the filter 17 or the gas-liquid reaction tank of a chemical plant. As described above, the fine bubble generating device according to the sixth embodiment will be described with reference to the drawings. When the pump 12 is driven, the liquid system of the liquid phase 18 flows into the gas-liquid suction pipe 13 through the filter 17. The gas self-suction hole 15a in the gas-liquid suction pipe 13 sucks the gas from the gas introduction pipe 15 into the gas-liquid suction pipe 13 with a liquid accompanying flow, and becomes a gas mixed fluid, which is sucked into the pump 1 through the suction port 12a of the pump 12 2 within. The gas-liquid mixed flow system in the suction pump 12 is pumped by a moving impeller (not shown) of the pump 12, and diffuses bubbles from the discharge port 12b of the pump 12 into the gas-liquid discharge pipe 14 and flows into the fine bubble generator 1. Alas, the operation in the micro-bubble generation 1 is the same as that in the first embodiment, so its explanation is omitted. In addition, the micro-bubble generating device Η connects the gas introduction pipe 15 to the gas self-suction hole 15a of the gas-liquid suction pipe 13, but does not connect the gas introduction pipe 15 and only provides the gas self-suction hole 15a to the gas-liquid suction pipe 13, Or the ejector type in which the end of the gas introduction pipe 15 is arranged in the gas-liquid suction pipe 13 and the gas is also sucked into the gas-liquid suction pipe 13 by itself, so the same can be implemented. The micro-bubble generating device according to the sixth embodiment configured as above has the following functions. (1) The equipment inhaling the gas-liquid suction pipe 13 is diffused in the pump 12 by the moving impeller, so that finer bubbles can be generated. -37- V. Description of the Invention (36) (2) Since the gas flow adjustment valve 16 is adjusted, the amount of gas in the gas-liquid suction pipe 13 can be adjusted, so the amount of fine bubbles can be adjusted. That is, in the sixth embodiment, although the fine bubble generator described in the first embodiment is used, it is possible to implement the same as the fine bubble generator described in the second to fifth embodiments. (Embodiment 7) Next, a fine bubble generating apparatus according to Embodiment 7 will be described below with reference to the drawings. Fig. 8 is a diagram showing the state of use of the micro-bubble generating device according to the seventh embodiment, and Fig. 9 is a diagram showing the configuration of the main part of the liquid-in-pump according to the seventh embodiment. In Figs. 8 and 9, 1 is a micro-bubble generator of Embodiment 1, la-type body, lb-type gas-liquid introduction tube, lc-type gas-liquid introduction hole, Id-type gas-liquid ejection hole, 16 series The gas flow regulating valve 18 is a liquid phase, and these are the same as those in Embodiments 1 and 6, and therefore the description is omitted with the same reference numerals. 21 is a micro-bubble generating device according to Embodiment 7, 22 is a liquid-in-pump having a suction port and an outlet 22b, 22c is a suction chamber of the liquid-in-pump, 22d is a motor chamber separated from the suction chamber 22c, and 22e is provided The motor provided in the motor chamber 22d and the rotation shaft reaches the suction chamber 22c, 22f is a moving impeller provided in the rotation shaft of the motor 22e, and 22g is a filter for preventing foreign matter from entering the liquid in the suction port 22a of the pump 22. The filter hole of the filter 22g is formed to have a diameter smaller than a manifold inner diameter described later. As a result, it is possible to prevent foreign matter from entering the manifold. The upstream side of the 23 series is connected to the gas-liquid discharge pipe of the liquid-medium pump 22 discharge port 22b, the upstream side of the 24 series is connected to the manifold of the prescribed portion of the gas-liquid discharge pipe 23, and the downstream side of the 25 series is opened near the suction port 22a of the liquid-medium pump On the upstream side, it is connected to -38- 592795. 5. Description of the invention (37) The downstream side of the manifold 24 is connected to a negative pressure pipe whose inner diameter is larger than that of the manifold 24. 26 is equipped with an air flow meter described later on the upstream side. At the end, the gas introduction pipe connected to the negative pressure pipe 25 on the downstream side, 27 is an air flow meter arranged at the open end of the upstream side of the gas introduction pipe 26 to confirm the amount of gas taken into the gas introduction pipe 26 .

The microbubble generating device of the seventh embodiment configured as described above will be described below with reference to the drawings. By driving the motor 22e and rotating the moving impeller 22f, the liquid in the liquid phase 18 is sucked into the suction chamber 22c from the suction port 22a through the filter 22g. The liquid system flowing into the suction chamber 22c is discharged from the gas-liquid discharge pipe 23 from the discharge outlet 22b. A part of this liquid flows into the negative pressure pipe 25 through the manifold 24.

When the liquid flows from the manifold 24 to the negative pressure pipe 25, the inner diameter of the negative pressure pipe 25 is larger than the inner diameter of the manifold 24. Therefore, the pressure in the negative pressure pipe 25 becomes lower than the pressure in the manifold 24 and is generated. Negative pressure. Since the downstream opening of the negative pressure pipe 25 is disposed near the suction port 22a, a negative pressure due to the suction force of the moving impeller 22f is also generated. From this negative pressure, the gas is sucked from the gas introduction pipe 26 into the negative pressure pipe 25 and mixed into the liquid to generate a gas-liquid mixed flow. The gas mixed flow flows from the negative pressure pipe 25 into the suction chamber 22c through the suction port 22a, and a certain degree of fine air bubbles are formed by the moving impeller 22f, and flows into the gas-liquid discharge pipe 23. The gas-liquid mixed flow flows into the micro-bubble generator 1 through the gas-liquid discharge pipe 23, and a large amount of micro-bubbles is ejected from the gas-liquid ejection hole Id. Alas, the fluid flow in the micro-bubble generator 1 is the same as that in the first embodiment, and its description is omitted. That is, the end of the gas introduction pipe 26 connected to the liquid pump 22 is connected to -39- 592795 5 > Description of the invention (38) The pump drainage portion disposed on the land, and the water inlet of the water supply pipe of the pump are disposed in the water. The air is sucked into the suction part of the water supply pipe, and the water containing air may be supplied to the micro-bubble generator 1. Furthermore, the liquid pumps 22 are arranged in a plurality of straight lines by means of a water pipe arrangement, and a large amount of water containing fine air bubbles can be supplied to a distant or deep water bottom. The micro-bubble generating device according to the seventh embodiment configured as described above can obtain the following functions. (1) The liquid pump 22 is disposed in the liquid phase 18, so it is not necessary to place the pump on land, and it has excellent usability. (2) The fluid is directly sucked in through the suction port 22a of the liquid-in-pump 22, so a gas-liquid suction pipe is not required, and the number of parts is reduced, which is superior to productivity. (3) A negative pressure pipe 25 is arranged near the suction port 22a of the liquid pump 22, so the residual pressure is not applied when the liquid pump 22 is turned on / off, and the gas introduction pipe 26 does not counter-flow the fluid and does not cause blockage. (4) Since the gas flow adjustment valve 7 is adjusted, the amount of gas flowing into the gas-liquid guide pipe can be adjusted, so the amount of fine bubbles can be adjusted. (5) Since the rotational force of the moving impeller 22f of the liquid pump 22 is directly used, the pressure loss is small, and the fine bubble generator 1 can be operated efficiently. That is, in the seventh embodiment, the micro-bubble generator described in the first embodiment is used, but the micro-bubble generator described in the second to fifth embodiments can also be implemented. (Embodiment 8) Next, a micro-bubble generator according to Embodiment 8 will be described below with reference to the drawings. -40- V. Description of the invention (39) Fig. 10 is a diagram showing the internal state of the micro-bubble generating device according to the eighth embodiment. Fig. 11 is a diagram showing the internal structure of the air-pump and liquid-in-water pump according to the eighth embodiment. In Figs. 10 and Π, 28a is an air supply unit provided with an inlet 28b and an outlet 28c on the upper part of the air pump and liquid medium pump 28, 28d is a drive chamber of the air supply unit 28a, and 28e is provided in An impeller of a rotating shaft protruding above the motor 22e. Although the rotation shaft of the motor 22e projects only below in the seventh embodiment, it projects above and below in this embodiment. 29 is a suction port 28b connected to the air supply part 28a on the downstream side, and a first gas introduction pipe of an air flow meter described later is arranged at the open end of the upstream side, and 30 is arranged on the upstream side of the first gas introduction pipe 29 The open end is an air flow meter for confirming the amount of gas sucked into the gas introduction pipe 29. 31 is connected to the outlet 28c of the air pump and liquid pump 28 in the upstream, and connected to the first part of the negative pressure pipe 25 in the downstream. 2 gas introduction pipe, 32 is a manifold flow regulating valve which is provided in an existing manual valve and the like in a predetermined portion of the manifold 24. When the air pump and the liquid medium pump 28 or the moving impeller 22f sufficiently supply the gas into the negative pressure pipe 25, the branching flow regulating valve 32 is closed to ensure the flow rate in the gas-liquid discharge pipe 23. Well, for the convenience of illustration, the microbubble generator is provided in a liquid pump 22, but the air pump and the water pump 28 in the suction chamber 22c around the suction chamber 22c can also be set of multiple microbubbles Generator. Sub-manifolds may also be provided for all the gas-liquid discharge pipes 23 at this time. The micro-bubble generating device of the eighth embodiment configured as described above will be described below with reference to -41- 592795 V. Description of the Invention (40) The operation will be described with reference to the drawings. By driving the motor 22e and rotating the impeller 22f of the pump 22 in the liquid, the liquid in the liquid phase 18 is sucked into the suction chamber 22c from the suction port 22a through the filter 22g. The liquid system flowing into the suction chamber 22c is discharged from the discharge port 22b into the gas-liquid discharge pipe 23, and a part of the liquid passes through the manifold 24 and flows into the negative pressure pipe 25. When the liquid flows from the manifold 24 to the negative pressure pipe 25, the inner diameter of the negative pressure pipe 25 is larger than the inner diameter of the manifold 24, so negative pressure occurs in the negative pressure pipe 25. In addition, since the opening on the downstream side of the negative pressure tube 25 is disposed near the suction port 22a, negative pressure depending on the suction force of the moving impeller 22f also occurs. On the one hand, the moving impeller 28e of the air-pump and liquid-in-pump 28 is also arranged on the rotating shaft of the motor 22e, so the gas 13 flows into the first gas introduction pipe 29, the air-pump and liquid-in-water pump 28, and the second gas introduction pipe 31. It flows into the negative pressure pipe 25. Based on these negative pressures and the discharge force of the air pump 28, the gas is sucked into the negative pressure pipe 25 through the first gas introduction pipe 29, the air supply section 28a, the second gas introduction pipe 31, and the check valve 28f and mixed with the liquid. To generate a gas-liquid mixed stream. The gas-liquid mixed flow flows from the negative pressure pipe 25 into the suction chamber 22c through the suction port 22a, and a certain degree of fine bubbles are formed by the moving impeller side, and flows into the gas-liquid discharge pipe 23. The gas-liquid mixed flow flows into the micro-bubble generator 1 through the gas-liquid discharge pipe 23 and ejects a large amount of fine bubbles from the gas-liquid ejection hole Id. Alas, the fluid operation in the micro-bubble generator 1 is the same as that in the first embodiment, so its explanation is omitted. The micro-bubble generating device according to the eighth embodiment constructed as described above, plus -----42- 592795 5. Description of the invention (41) The functions of the seventh embodiment have the following functions. (1) The moving impeller 28e of the air supply unit 28a is provided on the rotating shaft of the motor 22e of the liquid pump 22, so there is no need to provide a drive unit for air supply, which is superior in productivity and can be miniaturized. (2) From the manifold 24 to the change in the inner diameter of the negative pressure tube 25 and the negative pressure to the moving impeller 22f, the gas is flowed into the negative pressure tube 25 according to the suction force of the air pump and the liquid pump 28, so the pressure is increased. As the gas suction force of the entire device, micro-bubbles can also occur in liquids with a high specific gravity, such as in deep seas where the water pressure is high. (3) Only depending on the negative pressure of the moving impeller 22f and the attraction of the air-in-liquid pump 28, when the gas flows into the negative pressure pipe 25, the branch flow adjustment valve can be adjusted to fully ensure the flow of the gas-liquid discharge pipe 23. . (4) Since a plurality of micro-bubble generators are installed around the liquid pump, gas-liquid containing a large number of micro-bubbles can be released. That is, in the eighth embodiment, although the micro-bubble generator described in the first embodiment is used, the micro-bubble generator described in the second to fifth embodiments can be similarly implemented. (Embodiment 9) Next, a fine bubble generating apparatus according to Embodiment 9 will be described below with reference to the drawings. Fig. 12 (a) is a plan view showing a main part of a connection portion of a micro-bubble generator of a micro-bubble generator in Embodiment 9, and Fig. 12 (b) is a side view of a section thereof. In Figure 12, 1 series of micro-bubble generators, la series are mostly arranged in a circle -43- 592795 5. Description of the invention (42) Spherical body on the circumference, lb series of gas-liquid introduction tube, le series of gas-liquid The introduction hole 'Id is a gas-liquid ejection hole, and 14 is a gas-liquid discharge pipe for supplying gas-liquid to each gas-liquid introduction pipe lb. These are the same as those in Embodiments 1 and 6, and therefore the same symbols are attached to the description. The gas-liquid discharge pipe 14 of the micro-bubble generator of Embodiment 9 is connected to the gas-liquid introduction hole lb of the plurality of micro-bubble generators 1. The gas-liquid mixed flow system flows from the gas-liquid discharge pipe 14 into each micro-bubble generator 1, and ejects a fluid containing a large amount of micro-bubbles from each gas-liquid ejection hole 1d. According to the micro-bubble generating device of the ninth embodiment configured as above, a fluid containing micro-bubbles is ejected from the plurality of micro-bubble generators in one breath, and a function of releasing a large amount of micro-bubbles over a wide range is obtained. (Embodiment 10) Next, a micro-bubble generating apparatus according to Embodiment 10 will be described below with reference to the drawings. Fig. 13 is a side sectional view of a main part of the micro-bubble generator of Embodiment 10; In FIG. 13, 40 is a micro-bubble generator according to Embodiment 10, 41 is a device having a hollow portion with a rotational symmetry, and 42 is a gas-liquid introduction hole opened in a peripheral wall of the device 41 in a tangential direction. 43 It is a gas-liquid introduction pipe connected to the gas-liquid introduction hole 42, 44 and 45 are respectively the body ejection holes which are opened on the left and right sides of the rotational symmetry axis of the body 41, and 46 is a fluid expanded to the gas-liquid ejection holes 44, 45. Inclined portion formed in the ejection direction. The micro-bubble generator 40 of Embodiment 10 is an angle 02, 0 -44- 592795 of the inclined portion 46 of the gas-liquid ejection holes 44, 45 formed at the left and right sides of the device body 41. 5. Description of the invention (43) 1, The difference from each other is different from the micro-bubble generator 1 of the first embodiment. Here, the angle of the inclined portion 01 is in the range of 40 to 75 degrees, and the angle of 02 is in the range of 100 to 160 degrees. In accordance with this, the entire gas-liquid mixed fluid flow containing fine bubbles ejected from the left and right sides of the micro-bubble generator 40 becomes the flow of the gas-liquid ejection hole 45 on the small angle side, which is more advantageous than the side with the larger angle Gas-liquid ejection hole 44 side. Therefore, as a whole, the flow of the gas-liquid mixed fluid discharged from the gas-liquid ejection hole 44 is attracted to the gas-liquid ejection hole 45 side. As a whole, the gas-liquid ejection hole 45 side can be directional to spit gas-liquid mixture. fluid. In addition, by adding the angle adjustment to the inclined portion 46, the ratio (dl / D or d2 / D) of the minimum diameter d2, dl and the maximum diameter D of each gas-liquid ejection hole 44, 45 can be balanced, and the balance can be balanced. Each flow rate can be appropriately controlled in the flow state or the stirring state of the reaction vessel and the like according to the settings. The micro-bubble generator 40 according to Embodiment 10 is configured as described above. Therefore, in addition to the functions of Embodiment 1, the following functions are obtained. (1) The inner peripheral wall of the gas-liquid ejection holes 44 and 45 is provided with an inclined portion 46 having a diameter expanding at a predetermined angle toward the ejection side. Therefore, the range of the micro-bubble-containing water flow diffusion is limited to a predetermined angle to change the pressure in the water flow, and According to the pressure change in this part, fine bubbles can be effectively generated in the fluid. (2) The angle of the inclined portion 46 or the length of the ejection direction is adjusted according to the water quality or pressure, flow rate, temperature, etc. of the supplied water to be delicately changed, and the size or collection of fine bubbles diffused in the water stream The shape and the like are also acceptable. -45- 592795 V. Description of the invention (44) (3) Gas-liquid ejection holes 44, 45 are arranged on both sides of the rotational symmetry axis, so the inclined portions 46 serve as different inclination angles from the entire microbubble generator 40. The spouted water stream can give specific directivity, which is superior to the control of chemical reaction tanks or purification tanks. (4) The angle adjustment of the inclined portion 46 is added so that the ratio between the minimum diameter d of each gas-liquid ejection hole 44 and 45 and the maximum diameter D of the hollow portion (d / D) is different from left to right. It is appropriate to adjust the left and right flow rates separately. It is controlled in a state of water flow or agitation in a reaction vessel or the like. (Embodiment Π) The microbubble generator according to Embodiment 11 will be described below with reference to the drawings. Fig. 14 (a) is an oblique view of a main part of the micro-bubble generator according to Embodiment 11, Fig. 14 (b) is a side view thereof, and Fig. 14 (c) is a front view thereof. In FIG. 14, 101 is a microbubble generator of embodiment Π, which is water or seawater of a swimming pool or a fresh fish truck, and is arranged in the liquid phase of a reaction tank. 102 is a shape that is gathered from the rear side to the front end ( Cannonball shape) Hollow part made of synthetic resin or metal body, 103 is a fixed gas-liquid introduction tube in the tangential direction at the rear of the side wall of the body 102, and 104 is opened in the body The gas-liquid introduction hole of the gas-liquid introduction tube 10 in the tangential direction of 102 is 105, which is formed on the front end portion of the body 102 and cooperates with the shape of the raised portion of the fixed cap portion described later, and has an edge portion toward the body 102. The internally curved gas-liquid ejection hole 106 is near the peripheral wall of the gas-liquid ejection hole 105 of the body 102, and the cap support portions are protruded at equal distances at three places. The 107 series is along the gas-liquid ejection hole 105. The raised portion 107a in an external shape is borrowed from the gas-liquid ejection hole 105 -46- 592795 45. V. Description of the invention () The extended portion that is loosely fitted by the gap 1 05a and the extended portion 107a is radially extended. 1〇7b, a fixed type fixed by a cap and the supporting part 106 by a screw or the like Cover portion. The extension portion 1 07b of the cap portion 107 is formed of a flexible material such as a rubber body, and accordingly, the bulged portion 107a is ejected within the allowable range of the deflection of the extension portion 107a. The direction moves forward and backward. In response to changing the size of this gap 105a. Alas, some extensions 107b are not formed of a flexible material, but at this time, the bulge 107a cannot move, and the size of the gap 105a depends on the diameter of the fine bubbles and the gas-liquid introduction hole 104. Or the diameter of the gas-liquid ejection hole .105, the shape or volume of the body 102, the discharge pressure of the pump, etc., are appropriately selected. The microbubble generator according to the eleventh embodiment configured as described above will be described below with reference to the drawings. Fig. 15 is a side view showing the essential part of the fluid state of the microbubble generator in the eleventh embodiment. The V system rotates in the micro-bubble generator 101 and acts on a negative pressure axis formed by the centrifugal force of the gas-liquid mixed fluid. The gas-liquid mixed fluid flows into the device body 102 at high pressure from the gas-liquid introduction hole 104 (from the tangential direction), and the gas-liquid mixed flow system rotates rapidly along the inner wall surface of the device body 102 for gas-liquid mixing. It moves to the gas-liquid ejection hole 105 side. At this time, depending on the specific gravity difference between the liquid and the gas, the liquid acts on the centrifugal force and the gas acts on the centripetal force to form the negative pressure axis V. Therefore, the negative pressure shaft is intended to cause the cap portion 107 to act to attract the force in the body 102, and the extension portion 107b of the cap portion 107 is formed of a flexible material such as a rubber body. The bulge 107a is covered with 47-592795. V. Description of the invention (46) The gas-liquid ejection hole 105 is covered, and the gap 105a is reduced. On the one hand, when the gas-liquid mixing system in the body 102 rotates along the inner wall surface of the body 102, the closer the side rotation is to the gas-liquid ejection hole 105, the smaller the inner wall surface of the body 102, so the rotation speed becomes faster. The vicinity of the gas-liquid ejection hole 105 becomes the maximum rotation speed, and is in a state of being pushed against each other with the bulging portion 107a of the cap portion 107. Therefore, the gas collected on the negative pressure axis V is compressed and sheared while passing through the gas-liquid ejection hole 105a of the bulge 107a while being compressed, sheared, and passed as a number # m rule The fine bubbles are ejected from the gas-liquid ejection hole 105 out of the liquid phase. The negative pressure is changed in response to the pressure of the gas-liquid mixed fluid, so the proximity of the gas-liquid ejection hole 105 of the bulge 107a is changed in response to the negative pressure, and the average particle size of the bubbles is adjusted in accordance with the change. That is, in the eleventh embodiment, the shape of the edge portion of the gas-liquid ejection hole 105 is formed to be curved toward the inside of the device body 102, but a planar shape is also possible. The microbubble generator according to the eleventh embodiment configured as described above can obtain the following functions. (1) The fixed cap portion 107 does not move (will not rotate) in the direction of rotation of the gas-liquid mixed fluid, so it occurs between the swirling flow and the bulging portion 107a of the cap portion 107. Shearing can produce more fine bubbles in micron units or below. (2) The extended portion 107b of the cap portion 107 is made of a flexible material, so the raised portion 107a is attracted by the negative pressure axis V to the direction of the gas-liquid ejection hole 105, and the gas system ejected from the gas-liquid ejection hole 105 Flowing along the bulge 107a is compressed and sheared by the action of rotating and ejecting fluid, so that finer bubbles can be generated. • 48- 592795 V. Description of the invention (47) (3) The shape of the edge of the gas-liquid ejection hole 105 has a curved shape to match the shape of the protrusion 102 to the inside of the body 102, so the protrusion 107a When attracted by the negative pressure axis V, the gap 105a becomes narrower, and the gas ejected from the gas-liquid ejection hole 105 is compressed more strongly, so that finer bubbles can be generated. (4) There are a large number of fine bubbles in the fluid, so the contact area between gas and liquid can be large, and the reaction in the gas-liquid reaction device can promote the purification of the aeration tank or purification device, or the purification of rivers and lakes, dams, etc. . In addition, it is possible to increase the amount of dissolved oxygen in the water (sea water) of the aquaculture ponds or farms or the transport of fresh fish. (5) The extension 107b is made of a flexible material, so it corresponds to the pump discharge pressure or the diameter of the gas-liquid introduction hole 104 or gas-liquid ejection hole 105, the shape or volume of the body 102 (corresponding to the negative pressure axis The attractive force of V) also changes the size of the gap 105a, which is superior to universality. (6) Only the pressure of the gas-liquid mixed fluid can be adjusted to adjust the average particle size of the bubbles. (7) The outer liquid is partially cut off by the cap, so that the formation of negative pressure is suppressed to a minimum, the rotation resistance of the jet in the device is small, and the rotation of the water flow becomes faster to obtain fine air bubbles. (Embodiment 12) The microbubble generator according to Embodiment 12 will be described below with reference to the drawings. Fig. 16 (a) is a perspective view of a micro-bubble generator according to Embodiment 12, Fig. 16 (b) is a front view of the main part, and Fig. 16 (c) is a side view of the main part. -49- 48 V. Description of the Invention (1) In Fig. 16, 10 06 is a cap support portion, 107 is a fixed cap portion, 107a is a raised portion, and 107b is an extended installation portion. The system is the same as that of the eleventh embodiment, so the same reference numerals are attached and the description is omitted. 1 2 1 is a micro-bubble generator arranged in the liquid phase of a swimming pool or a fresh fish tanker or sea water, a reaction tank, etc. in Embodiment 12, 1 22 is an egg-shaped device which gathers from the middle to both ends In the hollow body of the shape, 1 23 is a gas-liquid introduction pipe fixed to the middle of the body 1 22 in a tangential direction, and 124 is a gas-liquid introduction pipe 123 opened in the middle of the body 122 in a tangential direction. The liquid introduction hole 125 is a gas-liquid ejection / outlet hole passing through both ends of the body 122, and 125a is a gap between the curved surface of the bulge 107a and the edge of the gas-liquid ejection hole 125. Alas, the micro-bubble generator 1 2 1 of this embodiment 12 is different from the micro-bubble generator of embodiment 1 in that the hollow part of the body 122 forms an egg shape, and the gas at the ends of the body 1 22 The liquid ejection holes 125 are provided with a point for fixing the cap portion 107. The operation of the microbubble generator according to Embodiment 12 configured as described above will be described below with reference to the drawings. Fig. 17 is a sectional state diagram showing a main part of a fluid state of the microbubble generator according to the twelfth embodiment. W is a negative pressure shaft formed by the centrifugal force of the gas that moves the gas-liquid mixed fluid in the micro-bubble generator 1 2 1. When the high-pressure gas-liquid mixed fluid flowing from the gas-liquid introduction hole 1 24 (from the tangential direction) into the container body 1 22, the gas-liquid mixed fluid rotates sharply along the inner wall surface of the container body 1 22 while gas-liquid mixing is rapidly performed. Each movement advances to the gas-liquid ejection holes 125 provided at both ends of the device body -50-592795 V. Invention Description (49) 122. At this time, the centrifugal force acts on the fluid and the centripetal force acts on the gas according to the difference in the specific gravity of the liquid and the gas to form the negative pressure axis W. The negative pressure axis W acts on the raised portions 107a of the fixed cap portions 107 at both ends to attract the force in the device body 122. Further, the extended portion 107b of the fixed cap portions 107 is formed of a flexible material, so it bulges. The part 107a moves so as to cover the gas-liquid ejection hole 125, and narrows the gap 125a. On the one hand, when the gas-liquid mixed fluid in the body 122 rotates along the inner wall surface of the body 122 to get closer to the gas-liquid ejection hole 125, the rotation speed becomes faster, and the maximum rotation speed becomes near the gas-liquid ejection hole 125. , And a state where the raised portion 107a of the fixed cap portion 107 is pushed against each other. Therefore, the gas system collected on the negative pressure axis W and the gas-liquid mixed fluid spouting from the 125-side curved surface of the gas-liquid ejection hole 105a of the bulge 107a are compressed and sheared through, passing through a large number of fine bubbles The gas-liquid ejection holes 125 at both ends of the body 122 are sprayed out of the liquid phase. The micro-bubble generator according to the embodiment 12 according to the above structure, and the function of the embodiment 11 is added to obtain the following effects. (1) The body 122 of the micro-bubble generator 121 is provided with gas-liquid ejection holes 125 on both sides of the body 122 with the gas introduction hole 124 as the center. The range can eject a large amount of fine bubbles. (Embodiment 13) The microbubble generator of Embodiment 13 will be described below with reference to the drawings. Fig. 18 (a) is a perspective view of the micro-bubble generator of Embodiment 13, Fig. 18 (b) is a front view thereof, and Fig. 18 (c) is a side view thereof. -51- 592795 V. Description of the Invention (50) In Figure 18, 106 is the cap support part, 122 series body, 123 series gas-liquid introduction tube, 124 series gas-liquid introduction hole, 125 series gas-liquid ejection hole, These are the same as those in the twelfth embodiment, and their descriptions are omitted with the same reference numerals. 131 is a micro-bubble generator in Embodiment 13 arranged in a liquid phase such as water or seawater of a swimming pool or a fresh fish truck, liquid of a reaction tank, etc., and 1 32 is a frame portion having a circular hole portion 132c in the center. 132 a is a rising portion 132 b extending from the periphery of the frame portion 132 a with respect to each of the gas-liquid ejection holes 125, and is arranged at a frame-like frame of each of the cap support portions 106. Alas, the cap support portion 106 may not be provided, and the end portion of the erected portion 132b may be directly fixed to the device body 122 to arrange the frame-shaped frame 132. One end of the 133 series is loosely fitted into the hole portion 132c of the frame portion 132a, and the other end is loosely fitted between the frame portion 132a of the gas-liquid ejection hole 125 and the gas-liquid ejection hole 125, and can be moved and rotated freely or fixed to A spherical cap portion provided in the frame portion 132a. As the cap portion 133 moves, the gap 125b between the cap portion 133 and the gas-liquid ejection hole 125 changes. The cap portion 133 is made of a synthetic resin made of synthetic rubber, a metal such as an aluminum alloy, or a lightly ejected fluid or can withstand the pressure of a negative pressure shaft. The microbubble generator according to Embodiments 13 configured as described above will be described below with reference to the drawings. Fig. 19 is a front view showing the main part of the fluid state of the microbubble generator according to the thirteenth embodiment. X is a negative pressure axis formed by the centripetal force of the gas-liquid mixed fluid rotating in the micro-bubble generator 1 3 1. Alas, the gas-liquid mixed fluid flows from the gas-liquid introduction hole 1 24 into the inside of the device body 1 22, and the action of reaching the gas-liquid ejection hole 125 is the same as that in Embodiment 12. -52- 592795 V. Description of the invention (51) The description is omitted here. When the negative pressure axis X is formed by the gas-liquid mixed fluid rotating in the device body 122, the spherical cap portion 133 is attracted to the force in the device body 122 by the negative pressure axis X, and the cap portion 133 is free to move Since the ground portion is disposed between the frame portion 132a and the gas-liquid ejection hole 125, the cap portion 133 moves to the gas-liquid ejection hole 125 side to narrow the gap 125b. That is, when the fixed spherical cap portion 133 is disposed on the frame portion 132a, the interval between the cap portion 133 and the gas-liquid ejection hole 125 does not change, so that the water flow can be stably discharged. In addition, the gas-liquid mixed fluid ejected from the gas-liquid ejection hole 125 is rotated sideways to rotate the cap portion 133. On the one hand, the gas-liquid mixed flow system in the body 122 rotates along the inner wall of the body 1 22 to be closer to the gas-liquid ejection hole 125, and the rotation speed becomes faster, and the maximum rotation speed is near the gas-liquid ejection hole 125. , Forming a state of pushing against the cap portion 1 33. Therefore, the gas collected on the negative pressure axis X is compressed between the rotating gas-liquid mixed fluid and the curved surface of the rotating cap portion 133, cut and passed, and passes through the body 122 with a small amount of fine bubbles. The gas-liquid ejection holes 125 at both ends are ejected from the liquid phase. In accordance with the pressure of the gas-liquid mixed fluid, the negative pressure of the negative pressure axis X is changed, and the cap portion 133 approaches or leaves the gas-liquid ejection hole 125 side according to the change, and the particle size of the air bubbles is adjusted according to its use. Alas, since the gap between the cap portion Π3 and the gas-liquid ejection hole 125 is fixed at a proper angle, the bubbles with a predetermined particle diameter can be ejected and maintained in an appropriate state, and the micro-bubble generator 1 3 1 can also be operated stably. According to the micro-bubble generator of Embodiment 1 3 constructed as described above, -53- 592795 can be obtained. 5. Description of the Invention (52) The following functions. (1) The cap portion 133 is arranged between the gas-liquid ejection hole 125 and the frame portion 132a so as to move and rotate freely. Therefore, the cap portion 133 is moved in the direction of the gas-liquid ejection hole 125 according to the negative pressure axis X to narrow the gap 125b. The gas system ejected from the gas-liquid ejection hole 125 is compressed and cut off at the cap portion 133, which can produce finer air bubbles. (2) When the gas-liquid mixed fluid flows into the device body 122, the cap portion 133 is held at a predetermined position by the attraction force of the negative pressure axis X and the force of the ejected gas-liquid mixed flow in the ejection direction, so it is hardly maintained. It is in contact with the frame portion 132a or the gas-liquid ejection hole 125, and is not easy to wear, and is superior in durability. (3) In the body 122 of the micro-bubble generator 13 1, a gas-liquid ejection hole 1 25 is formed on both sides of the body 1 22 with the gas-liquid introduction hole 124 as a center. Therefore, from the micro-bubble generator 1 3 1 A wide range of fluid can be ejected from both sides. (4) Can produce a lot of fine bubbles. Therefore, the contact area between the gas and the liquid can be made large, which can promote the reaction in the gas-liquid reaction device and the purification of the aeration tank or the purification device. In addition, it can increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fish transport trucks. (5) Only the pressure of the gas-liquid mixed fluid can be adjusted to adjust the average particle size of the bubbles. (Embodiment 14 and Embodiment 15) The micro-bubble generator according to the fourteenth embodiment and the micro-bubble generating device according to the fifteenth embodiment will be described below with reference to the drawings. Fig. 20 (a) is an oblique-54-592795 of the multi-stage micro-bubble generator of Embodiment 14 V. Description of the invention (53) View, Fig. 20 (b) is its rear view, and Fig. 21 is Embodiment 15 Structure of a multi-stage type micro-bubble generating device.

As shown in FIG. 20, 201 is a multi-stage microbubble generator of Embodiment 14; 202 is a device (front end nozzle) having a generally conical ladder-shaped hollow portion gathered from the rear side to the front end; and 203 is worn The gas-liquid ejection hole (front-end ejection hole) at the front end (top) of the body 202 '204a is a gas-liquid introduction hole (front-end liquid introduction hole) that opens in the tangential direction to the rear side of the body 202, and 204b is connected to the gas-liquid A gas-liquid introduction pipe (front-end liquid introduction pipe) for introducing a liquid or a gas-liquid mixed fluid provided in the introduction hole 204a. The 205 series front side is arranged inside the rear side of the body 202, and the shape is gathered from the rear side to the front end. The open internal nozzle portion 206 is a secondary ejection hole opening at the front end of the internal nozzle portion 205, 206a is a cylindrical internal hollow portion formed behind the internal nozzle 205, and 207a is opened in the internal hollow portion 206a. Gas-liquid introduction hole 204a The secondary liquid introduction hole in the same direction as the tangential direction, 207b is connected to the secondary liquid introduction tube provided in the secondary liquid introduction hole 207a, and 208 is passed through the rear end of the internal hollow portion 206a The gas from the interior of the nozzle portion of the suction hole (suction gas from the well). As shown in the figure, inside the device body 202, a rotary backflow generating portion including an internal nozzle portion 205, an internal hollow portion 206a, and a secondary liquid introduction pipe 207b, an internal nozzle portion, and a gas self-suction hole 208 are arranged. This accelerates and agitates the rotating water flow in the hollow portion of the body 202, making it easier to generate finer air bubbles. 209 is a micro-bubble generating device according to Embodiment 15, and 210 is -55- 592795. 5. Description of the Invention (54) A suction port 210a and a discharge port 210b are used to feed the front-end side liquid to the front-end pump in the body 202. The upstream side of the 211 series is connected to the front-end pump 210 outlet 21b, the downstream side is connected to the front-side discharge tube of the gas-liquid introduction pipe 204b, and the 212-series downstream side is connected to the front-end pump 2 1 0 suction port 2 1 0a 213 is connected at one end to the gas self-suction hole 208 of the internal nozzle portion, and the other end is a gas self-suction tube opened to the air, etc., 214 is provided with a suction port 214a and a discharge port 214b to send the secondary side liquid into the internal nozzle portion 205. Secondary pump,

215 is connected to the discharge port 214b of the secondary pump 214 on the upstream side, the secondary discharge pipe is connected to the secondary liquid introduction pipe 207b on the downstream side, and 216 is connected to the suction port 2 1 4a of the secondary pump 2 1 4 on the downstream side. The secondary suction pipe 2 1 7 is a gas flow regulating valve provided at a predetermined portion of the gas self suction pipe 2 1 3. The micro-bubble generator according to the fourteenth embodiment and the micro-bubble generator according to the fifteenth embodiment provided with the above structure will be described below with reference to the drawings. Fig. 22 is a side sectional view showing a main part of a fluid state inside the micro-bubble generator.

In Figure 22, 201 series of micro-bubble generator, 202 series body, 203 series of gas-liquid ejection holes, 204a series of front-end fluid introduction holes, 204b series of front-end fluid introduction tubes, 205 series of internal nozzles, and 206 series of secondary discharge Holes, 207a are secondary liquid introduction holes, 207b are secondary liquid introduction pipes, and 208 are internal gas suction holes in the nozzle portion. These are the same as those in FIG. 20, so the same symbols are omitted to explain them. Well, for the convenience of explanation, the liquid sucked by the front-end pump is the liquid on the front-end side, and the liquid sucked by the secondary pump is the secondary-side liquid. As the front-end side liquid or the secondary side liquid, it is also the same type, or it can be a different type, and water or chemical liquid, reaction liquid, fuel, etc. are used. In addition, the pollution treatment tank -56 is used as the gas system. 5. Description of the invention (55) The ozone is used for sterilization of water such as air and swimming pool, etc., and the reaction gas (HCN, HC1, S02, No2, etc.) is used for chemical reaction. )Wait. 218 is the boundary part of the negative pressure liquid to be intruded into the body 202, and the gas-liquid ejection hole 203 formed by the front-end liquid and the secondary-side liquid sprayed out of the body 202. X is in the body 202 and the internal nozzle. A negative pressure shaft formed by the gas-liquid mixed fluid is rotated in the portion 205. When the secondary pump 214 is driven, the secondary liquid passes through the secondary suction pipe 216, the secondary pump 214, and the secondary discharge pipe 215, and continuously flows from the secondary liquid introduction pipe 207b into the internal nozzle portion 205 while rotating. The side gathers and moves toward the secondary ejection hole 206 side. At this time, the centrifugal force is applied to the liquid on the secondary side, and the center of the swirling flow becomes negative pressure, so the gas is sucked in from the internal nozzle portion gas from the suction hole 208, and the internal nozzle portion gas introduction pipe 208 is passed through the secondary discharge hole 206 to form a negative pressure. Finale. On the other hand, when the front-end pump 210 is driven, the front-end liquid system passes through the front-end suction pipe 212, the front-end pump 210, and the front-side discharge pipe 211, and continuously flows from the front-end fluid introduction pipe 204b into the body 202, and rotates to gather gas and liquid The ejection hole 203 side moves. In addition, from the secondary discharge hole 206 in the body 202, the front-end side liquid and the rotation direction are brought into the same secondary-side liquid. At this time, the secondary-side liquid and the front-end side liquid in the body 202 act as a centrifugal force and generate a negative pressure in the center of the swirling flow. Therefore, the negative pressure axis formed in the internal nozzle portion 205 extends to the gas-liquid ejection hole 203, and A negative pressure axis X is formed. The fluid near the gas-liquid ejection hole 203 on the outside of the device body 202 exerts a force to enter the device 202 from the gas-liquid ejection hole 203 from the negative pressure axis X. On the one hand, in the body 202, the front-side liquid and the secondary-side liquid system are mixed -57- 592795 V. Description of the invention (56) The closer the rotation is, the closer the gas-liquid ejection hole 203 is, the faster the rotation speed is The pressure becomes high, the maximum rotation speed and pressure become near the gas-liquid ejection hole 203, and the state is pushed against the negative-pressure liquid. The front-side liquid and the secondary-side liquid system escape from the vicinity of the edge of the gas-liquid ejection hole 203 to avoid the negative pressure liquid. Further, the gas collected on the negative pressure axis X is cut at the boundary portion 2 1 8 of the negative pressure liquid, the front-end side liquid, and the secondary side liquid, and a large number of fine bubbles are ejected from the gas-liquid ejection hole 203. The micro-bubble generator according to the fourteenth embodiment and the micro-bubble generating device provided in the fifteenth embodiment according to the above-mentioned embodiment have the following functions. (1) From the secondary ejection hole 206 into the body 202, the secondary liquid side rotates and enters, so the front-end side liquid and the secondary side liquid can be efficiently mixed. (2) From the secondary ejection hole 206 to the body .202, the secondary liquid enters while rotating, so the rotational force of the secondary liquid plus the rotational force of the front-end liquid generates a stronger swirling flow, so Fine air bubbles can be ejected with good momentum. (3) Since the gas flow adjustment valve 217 can be adjusted, the amount of gas mixed in the liquid can be adjusted, so the size or amount of fine bubbles generated can be adjusted. (4) If the particle size of the fine bubbles is 100 // m or less, it can be freely controlled only by adjusting the inflow amount or rotation speed of liquid or gas. (5) Because it is a fine bubble, the surface area of the bubble is extremely large, and it can supply air or reaction gas to sewage or reaction liquid and neutralizing liquid with high absorption or reaction rate. (6) The gas is sucked in from the suction hole 208 of the internal nozzle gas, so it can automatically supply air in the atmosphere with a high absorption rate to the sewage, and can seek -58- 592795 based on maintenance-free. V. Description of the invention (57) Sewage Labor-saving processing. (7) Open the gas self-suction pipe 213 to the atmosphere, or only connect it for the purpose of absorption or reaction gas (such as C02, HC1, HCN, S02, COC12, fluorine compound gas and other reaction gases), so that the liquid can absorb the gas Or responder. (8) It is a multi-stage type, so the supply of equal or multiple liquids and gases in each stage can efficiently absorb the gas or react with the liquid. (9) The gas intake can be adjusted by adjusting only the supply of liquid, which is superior in workability and labor saving. (10) The most suitable gas can be introduced into the liquid introduction pipe according to the viscosity or rotation amount and flow rate of the mixed raw liquid, and the freedom of handling or reaction is superior. (11) Multiple types of liquids or gases can be mixed at one time by the pumps 210 and 214. (Embodiment 16 and Embodiment 17) Next, a micro-bubble generator according to a sixteenth embodiment and a micro-bubble generator according to a seventeenth embodiment including the same will be described below with reference to the drawings. Fig. 23 (a) is a perspective view of a micro-bubble generator according to Embodiment 16, and Fig. 23 (b) is a rear view thereof. In Figure 23, 202 series body, 203 series gas-liquid ejection hole, 204a series front-end gas-liquid introduction tube, 204b series front-end liquid introduction tube, 205 series internal nozzle section, 206 series secondary discharge hole, and 207a series secondary liquid The introduction holes and 207b are secondary liquid introduction pipes, and these are the same as those in Embodiment 14 and therefore their descriptions are omitted with the same reference numerals. -59 · 592795 V. Description of the Invention (58) 221 is a fine bubble generator according to Embodiment 16. The difference between the micro-bubble generator 221 of the sixteenth embodiment and the micro-bubble generator 201 of the fourteenth embodiment is that the rear portion of the internal nozzle portion 205 has no internal nozzle portion gas self-suction hole 208. Fig. 24 is a diagram showing the structure of a fine bubble generating device in Embodiment 17; In Fig. 24, 210 series front pump, 210a series suction port, 210b series discharge port, 211 series front side discharge tube, 212 series front side suction tube, 214 series secondary pump, 2 1 4a series suction port, 2 1 4b The system discharge port, the 2 1 5 system secondary side discharge pipe, the 216 system secondary side suction pipe, the 217 system gas flow adjustment valve, and the 221 system are the fine bubble generators of the embodiment 16. 222 is a micro-bubble generating device according to Embodiment 17, and 223 is a gas self-suction pipe whose one end is connected to the secondary suction pipe 216 and the other end is opened in the air. The microbubble generating device of Embodiment 17 differs from the microbubble generating device of Embodiment 15 in that the gas self-suction pipe 223 is connected to the secondary-side suction pipe 2 1 6. The micro-bubble generator according to the sixteenth embodiment and the micro-bubble generator according to the embodiment provided with the above structure will be described below with reference to the drawings. Alas, for convenience of explanation, the liquid sucked by the front-end pump is the front-end side liquid, and the liquid sucked by the secondary pump is the secondary-side liquid. When the secondary pump 214 is driven, the secondary-side liquid is sucked into the secondary pump 214 from the suction port 214a from the secondary-side suction pipe 216. At this time, in connection with the secondary side -60- 592795 V. Description of the invention (59) The connection part of the gas self-suction pipe 223 of the suction pipe 216, from the gas self-suction pipe 223 to the secondary side suction pipe 216, the gas is the secondary liquid As the flow is attracted, the secondary liquid system becomes a gas-liquid mixed flow. The secondary-side liquid of the mixed bubbles is discharged from the discharge port 214b by the moving impeller (not shown) in the secondary pump 214, and flows into the internal nozzle portion 205. In other words, since the operations in the body 202 and the internal nozzle portion 205 are the same as those in the fourteenth embodiment, their explanations are omitted. The micro-bubble generator according to Embodiment 16 configured as described above, and the micro-bubble generator according to Embodiment 17 provided with the functions described in (1) to (10) of Embodiments 14, 15 are obtained as follows Features. (1) The gas self-suction pipe 223 is connected to the secondary-side suction pipe 216, and there is no hole for receiving gas in the internal nozzle portion 205. Therefore, the micro-bubble generator 201 is used in a chemical reaction tank or a sewage treatment tank, etc. At this time, the residual pressure is retained in the device when the front-end pump 210 or the secondary pump 214 is turned on or off, and the fluid will not be clogged by reactants or dirt when the fluid countercurrently flows. (2) The gas mixed in the secondary liquid is diffused by the impeller in the secondary pump 214, so that finer bubbles can be generated. (Embodiment 18, Embodiment 19) Next, a micro-bubble generator according to Embodiment 18 and a micro-bubble generator including the same according to Embodiment 19 will be described below with reference to the drawings. Fig. 25 (a) is a perspective view of a fine bubble generator according to Embodiment 18, and Fig. 25 (b) is a rear view thereof. In Figure 25, the 202 series body, the 203 series gas-liquid ejection hole, the 204a series front-end fluid introduction hole, the 204a series front-end fluid introduction tube, and the 205 series internal nozzle-61- 592795 V. Description of the invention (60) part, 206 series The secondary ejection holes and the 208 are self-suction holes for gas in the internal nozzle portion. These are the same as those in the fourteenth embodiment, and their descriptions are omitted with the same reference numerals. 231 is a multi-stage microbubble generator of Embodiment 18, and 232b is a secondary liquid introduction hole 23 2a (refer to No. 27) opened at the rear side of the internal nozzle portion 205 and communicating with the gas-liquid introduction pipe 204b in a tangential direction to the opposite direction. (Picture) The secondary liquid introduction pipe is provided. The microbubble generator 23 1 of Embodiment 18 is different from the microbubble generator 201 of Embodiment 14 in that the secondary liquid introduction hole 232a of the secondary liquid introduction pipe 232b is not the same as the front-end fluid introduction pipe. The fluid introduction hole 204a at the front end of 204b is in the same direction as the opening at the opposite direction. Fig. 26 is a diagram showing the structure of a fine bubble generating device according to the nineteenth embodiment. In Figure 26, 202 series body, 203 series gas-liquid ejection hole, 204b series front fluid introduction pipe, 205 series internal nozzle section, 208 series internal nozzle gas self-suction hole, 210 series front pump, 210a series suction port, 210b System discharge port, 211 series front-side discharge pipe, 212 series front-side suction pipe, 213 series gas self-suction pipe, 214 series secondary pump, 214a series suction port, 214b series discharge port, 215 series secondary discharge pipe, 2 1 6 series secondary side suction pipe, 2 1 7 series gas flow adjustment valve, 231 multi-stage type micro-bubble generator in Embodiment 18, 232b series secondary liquid introduction pipe, and these are the same as those in FIG. 21 or 25 In the same way, the same symbols are used to omit the description. 23 3 is a fine bubble generating device according to the nineteenth embodiment. The micro-bubble generator according to the eighteenth embodiment and the micro-bubble generator according to the nineteenth embodiment provided with the above structure will be described below with reference to the drawings. That is, for convenience of explanation, the liquid sucked by the front-end pump is the front-end liquid, and the liquid sucked by the secondary pump is the secondary-side liquid. Fig. 27 is a side sectional view of a main part of a fluid state inside the micro-bubble generator. In Fig. 27, 202 series body, 203 series gas-liquid ejection hole, 204a series front-end fluid introduction hole, 204b series front-end fluid introduction tube, 205 series internal nozzle section, 206 series secondary discharge hole, and 208 series internal nozzle gas Self-priming holes, 231-type multi-stage micro-bubble generators, 232a-type secondary liquid introduction holes, and 232b-type secondary liquid introduction tubes are the same as those shown in FIG. Y is a negative pressure axis formed by the gas-liquid mixed fluid rotating in the internal nozzle 205. When the secondary pump 214 is driven, the secondary-side liquid system passes through the secondary-side suction pipe 216, the secondary pump 214, and the secondary-side discharge pipe 215, and continuously flows into the internal nozzle portion 205 from the secondary liquid introduction pipe 232b. It rotates and moves to the secondary ejection hole 206 side. At this time, a centrifugal force is acted on the secondary liquid, and a negative pressure is actuated at the center of the swirling flow to suck the gas from the internal nozzle portion through the suction hole 208 to form the negative pressure axis Y. On the one hand, the front-end pump 210 is driven, and the front-side liquid system passes through the front-side suction pipe 212, the front-end pump 210, and the front-side discharge pipe 211, and flows continuously from the front-end fluid introduction pipe 204b into the body 202 while rotating on the secondary-side liquid. The opposite direction moves toward the gas-liquid ejection hole 203 side. In addition, the secondary injection of the liquid from the secondary ejection hole 206 in the body 202 into the secondary liquid is reversed to the front-end liquid. -63- 592795 5. Description of the invention (62) The liquid on the front side is near the secondary ejection hole 206. The negative pressure axis Y in the internal nozzle portion 205 is used to exert a force to enter the internal nozzle portion 205 from the secondary discharge hole 206. On the one hand, in the internal nozzle portion 205, the secondary side liquid system is rotated closer to the secondary ejection hole 206 while rotating, and the rotation speed becomes faster while the pressure becomes higher, and the maximum rotational speed and pressure become near the secondary ejection hole 206. , Forming a state of mutual pushing with the negative pressure liquid. The secondary side liquid system flows out of the vicinity of the edge of the secondary ejection hole 206 as if the negative pressure liquid was avoided. The gas collected on the negative pressure axis Y is a compressed gas that passes through the gap between the negative pressure liquid and the secondary liquid, and becomes a large number of fine bubbles together with the secondary liquid, and is ejected from the secondary ejection hole 206 of the internal nozzle 205 The container 202 is sprayed from the gas-liquid ejection hole 203 of the container 202 after being mixed with the liquid at the front end side. The micro-bubble generator according to the eighteenth embodiment and the micro-bubble generating device according to the nineteenth embodiment can obtain the following functions g. (1) The rotation direction of the secondary liquid is opposite to that of the front-end liquid, so the gas system gathered on the negative pressure axis Y becomes fine bubbles at the moment when it enters the body 202 from the secondary ejection hole 206, and the secondary liquid And the micro-bubbles are efficiently mixed with the rotating front-end liquid, and are ejected from the gas-liquid ejection hole 203. Therefore, although the device body 202 and the internal nozzle portion 205 are disposed in the air, they can eject a liquid containing a large amount of fine bubbles. (2) Since the gas flow adjustment valve 217 is adjusted, the amount of gas mixed into the secondary liquid can be adjusted, so the size or amount of the fine bubbles generated can be adjusted. (3) Based on the particle size of the fine bubbles // m ~ 100 // m, only by adjusting the liquid -64- 592795 V. Description of the invention (63) or the inflow or rotation speed of the gas can be freely controlled. (4) Because it is a micro-bubble, the surface area of the bubble is extremely large, and it can supply air or reaction gas to sewage or reaction liquid, and neutralization liquid with high absorption or reaction rate. (5) Open the gas self-suction tube 213 to the atmosphere, and only contact the intended absorption or reaction gas (such as C02, HC1, HCN, S02, COC12, fluorine compound gas and other reaction gases) to absorb or react the gas liquid. (6) It is a multi-stage type. Because the same or different types of liquids and gases are supplied to each stage, the gas can be absorbed or reacted to the liquid with high efficiency. (7) The gas intake can be adjusted by adjusting only the supply of liquid, which is excellent in workability and labor saving. (8) According to the viscosity, rotation volume and flow rate of the mixed raw liquid, the most suitable liquid introduction pipe is used to introduce the gas, and the freedom of handling or reaction is excellent. (Embodiment 20, Embodiment 21) Next, a micro-bubble generator according to a twentieth embodiment and a micro-bubble generator according to the embodiment 21 having the same will be described below with reference to the drawings. Fig. 28 (a) is a perspective view of a micro-bubble generator according to Embodiment 20, and Fig. 28 (b) is a rear view thereof. In Fig. 28, 202 series body, 203 series gas-liquid ejection hole, 204a series front-end fluid introduction hole, 204b series front-end fluid introduction tube, 205 series internal nozzle section, 206 series secondary discharge hole, and 232a series secondary liquid introduction The hole and 232b are secondary liquid introduction pipes, and these are the same as Embodiment 18, so they are attached with the same reference numerals as -65- 5. Description of Invention (64), and the description is omitted. 241 is the micro-bubble generator 241 of Embodiment 20, and is different from the micro-bubble generator 2 3 1 of Embodiment 18 in that there is no internal nozzle portion gas self-suction hole 208 behind the internal nozzle portion 205 . Fig. 29 is a diagram showing the structure of a fine bubble generating device in Embodiment 21; In Figure 29, the 202 series body, the 203 series gas-liquid ejection hole, the 204b series front fluid introduction tube, the 205 series internal nozzle section, the 232b series secondary liquid introduction tube, the 210 series front pump, the 210a series suction port, and the 210b series Discharge port, 211 series front-end discharge tube, 2 1 2 series front-end suction tube, 2 1 4 series secondary pump, 214a series suction port, 214b series discharge port, 215 series secondary discharge tube, 216 series secondary side The suction pipe and the 2 1 7 series gas flow regulating valve are the same as those in Embodiment 19, and therefore the description is omitted with the same reference numerals. 242 is a micro-bubble generating device according to Embodiment 21, and 243 is a self-suction pipe for a gas which is connected to the secondary suction pipe 216 at one end and opened to the air at the other end. The micro-bubble generating device 242 of Embodiment 21 is different from the micro-bubble generating device 23 3 of Embodiment 19 in that there is no internal nozzle portion gas self-suction hole 208 behind the internal nozzle portion 205 and a gas self-suction pipe 243 is connected to Point of secondary side suction tube 2 1 6. The micro-bubble generator according to the twentieth embodiment configured as described above and the micro-bubble generator according to the twentieth embodiment provided with the same will be described below with reference to the drawings. Alas, for convenience of explanation, the liquid sucked by the front-end pump is the front-end side liquid -66- V. Description of the Invention (65) The liquid sucked by the secondary pump is the secondary-side liquid. When the secondary pump 2 1 4 is driven, the secondary-side liquid is sucked into the secondary pump 214 through the suction port 214a from the secondary-side suction pipe 2 1 6. At this time, at the connection portion with the gas suction pipe 243 of the secondary suction pipe 216, the gas is sucked into the secondary suction pipe 2 1 6 from the gas suction pipe 243 as the accompanying flow of the secondary liquid. The liquid becomes a gas mixed fluid. The secondary-side liquid in which the bubbles are mixed is driven by an impeller (not shown) in the secondary pump 214, and the diffused bubbles are discharged from the discharge port 214b into the internal nozzle portion flowing therein. That is, the operation of the fluid in the body 202 and the internal nozzle portion 205 is the same as that in Embodiments 18 and 19, and a description thereof will be omitted. The micro-bubble generator according to the twentieth embodiment configured as described above and the micro-bubble generator according to the twenty-first embodiment have the functions obtained in the eighteenth and nineteenth embodiments in addition to the following functions. (1) The gas self-suction pipe 243 is connected to the secondary-side suction pipe 216, and there is no hole or the like for receiving gas in the internal nozzle portion 205. Therefore, when a micro-bubble generator 241 is used in a chemical reaction tank or a sewage treatment tank, etc. When the secondary pump 214 is ON / OFF, etc., the residual pressure is retained in the device. When the fluid flows countercurrently, it will not be blocked by reactants or dirt. (2) The gas mixed in the secondary-side liquid is diffused by the impeller in the secondary pump 214, so that many finer bubbles can be generated. (Embodiment 22, Embodiment 23) The micro-bubble generator according to Embodiment 22 and the micro-bubble generator according to Embodiment 23 provided therewith will be described below with reference to the drawings. Fig. 30 (a) is a multi-stage type micro-bubble generator of Embodiment 22 -67- 592795 5. Explanation of the invention (66) is an oblique view, and Fig. 30 (b) is a back view thereof.尙 For convenience of explanation, the liquid sucked by the front-end pump is the liquid at the front end, the liquid sucked by the secondary pump is the secondary side liquid, and the liquid sucked by the tertiary pump is the tertiary liquid.

As shown in FIG. 30, 251 is a micro-bubble generator of Embodiment 22, 252 is a substantially conical ladder-shaped body gathered from the rear side to the front end, and 253 is inserted through the front end (top) of the body 252 The gas-liquid ejection hole 254b is a gas-liquid introduction hole 254a opened in the tangential direction to the rear side of the device body 252, and the gas-liquid introduction tube 254a is connected to the front side of the 25 series. An internal nozzle portion having a generally conical ladder shape is gathered from the rear side to the front end portion, and 256 is a secondary ejection hole opened at the front end of the internal nozzle portion 255, and 257b is opened at the rear side of the internal nozzle portion 255 for gas and liquid introduction. The secondary liquid introduction hole 257a (not shown) in the tangential direction of the hole 254a in the reverse direction communicates with the secondary liquid introduction pipe. The front side of the 258 series is disposed inside the rear side of the internal nozzle portion 255 and from the rear side. A three-dimensional nozzle having a generally conical ladder shape is gathered toward the front end. 259 is provided at the three-time ejection hole at the front end of the three-time nozzle 258, and 260b is opened at the rear side of the three-time nozzle 258 at a tangent line in the same direction as the secondary liquid introduction hole 257a. Three times to a liquid introducing hole 260a, three disposed in fluid communication with the inlet tube, 261 through lines 258 provided in the rear end portion of the gas nozzle from the three suction holes (gas from the inner nozzle portion suction hole). Fig. 31 is a configuration diagram of a fine bubble generating device according to a twenty-third embodiment. -68- 592795 V. Description of the invention (67) As shown in Figure 31, 262 is a front-end pump with a suction port 262a and an outlet 262b for feeding the front-end liquid into the body 252, and 263 is connected to the front-end pump on the upstream side The outlet 262b of 262 is connected to the front-end outlet pipe of the gas introduction hole 254a on the downstream side, 264 is the front-side suction pipe connected to the suction port 262a of the front-end pump 262 on the downstream side, and 265 has a suction port 265a and a discharge port 265b. The secondary pump for feeding the secondary side liquid to the internal nozzle portion 255. The 266 system is connected to the discharge port 255b of the secondary pump 265 on the upstream side, and the secondary side discharge pipe 267a is connected to the secondary liquid introduction hole 257a on the downstream side. It is a secondary suction pipe connected to the suction port 265a of the secondary pump 265 on the downstream side. 268 is a tertiary pump with a suction port 268a and a discharge port 268b for feeding tertiary liquid to the tertiary nozzle 258. The upstream side of the 269 series is connected to The outlet 268b of the tertiary pump 268 is connected to the tertiary side discharge pipe of the secondary liquid introduction hole 260a on the downstream side. The 270 series is a tertiary side suction pipe connected to the suction port 268a of the tertiary pump 268 on the downstream side. 261, The other end is a gas self-suction pipe provided with a gas flow adjustment valve 217 for a predetermined portion opened in the air. The microbubble generator according to the twenty-second embodiment configured as described above and the microbubble generator according to the twenty-third embodiment provided therewith will be described below with reference to the drawings. Fig. 32 is a side view of a main part of a fluid state in the micro-bubble generator. In Fig. 32, Z is a negative pressure axis formed by the swirling flow in the internal nozzle portion 255 and the tertiary nozzle 258. When the third pump 268 is driven, the third-side liquid system passes through the third-side suction pipe 270 -69- 592795 V. Description of the invention (68), the third pump 268, and the third-side discharge pipe 269 continuously flow from the third liquid introduction pipe 260b into the third nozzle 258 Inwardly, it moves to the side of the three ejection holes 25 9 while rotating. At this time, the centrifugal force acts on the liquid on the tertiary side, and a negative pressure acts on the center of the swirling flow. The gas is sucked in from the suction hole 261 to form a negative pressure axis. When the secondary pump 265 is driven, the secondary liquid system passes through the secondary suction pipe 267, the secondary pump 265, and the secondary discharge pipe 266, and continuously flows from the secondary liquid introduction pipe 257b into the internal nozzle portion 255. While rotating, it approaches the secondary ejection hole 256. In the internal nozzle portion 255, the secondary liquid is mixed while rotating the tertiary liquid system. At this time, since the secondary-side liquid system is rotated in the same direction as the tertiary-side liquid, the negative pressure axis extends to the secondary discharge hole 256 to form the negative pressure axis Z. On the other hand, when the front-end pump 262 is driven, the front-side liquid system passes through the front-side suction pipe 264, the front-end pump 262, and the front-side discharge pipe 263, and continuously flows into the body 252 from the gas-liquid introduction pipe 254b. It rotates in a direction opposite to the secondary liquid and the tertiary liquid, and moves to the gas-liquid side ejection hole 253 side. From the secondary ejection holes 256, the secondary side liquid, the tertiary side liquid, and the fluid containing fine bubbles enter the container body 252. The liquid at the front side near the secondary ejection hole 256 is driven from the secondary ejection hole 256 into the internal nozzle portion 255 according to the negative pressure axis Z in the internal nozzle portion 255 and the tertiary nozzle 258. In the nozzle portion 255, as the secondary side liquid and the tertiary side liquid rotate closer to the secondary ejection hole 256 while rotating, the rotation speed becomes faster and the pressure becomes higher. The rotational speed and pressure become maximum near the secondary ejection hole 256. , Forming a state of pushing with the negative pressure liquid. Secondary-side liquid and tertiary-side liquid system to avoid negative pressure liquid -70- 592795 5. In the description of (69), it flows out from the edge of the secondary ejection hole 256. In addition, the compressed gas gathered on the negative pressure axis Z passes through the gap between the negative pressure liquid and the mixed liquid of the secondary liquid and the tertiary liquid, and passes through it, and enters the body 252 and the secondary liquid and the tertiary liquid. The liquid mixed liquid is ejected from the secondary ejection hole 256 of the internal nozzle portion 255 along with a large amount of fine bubbles, and is ejected from the gas-liquid ejection hole 253 of the body 252 after being mixed with the liquid at the front end side. The microbubble generator according to the twenty-second embodiment configured as described above and the microbubble generator according to the twenty-third embodiment provided with the microbubble generator can obtain the following functions. (1) The rotation direction of the secondary and tertiary liquids is opposite to that of the front-end liquid. Therefore, the gas system gathered on the negative pressure axis Z is cut off from the secondary ejection hole 256 into the device body 252. As a result of the formation of fine bubbles, the secondary side liquid, the tertiary side liquid, and the fine bubble system are efficiently mixed with the rotating front-end side liquid and ejected from the gas-liquid ejection hole 253. Therefore, the device body 252 and the internal nozzle portion 255 and the tertiary liquid are ejected. The nozzle 258 is disposed in the air and can also eject a liquid containing a large amount of fine bubbles. (2) Since the gas flow adjustment valve 217 can be adjusted, the amount of gas mixed into the tertiary liquid can be adjusted, so the size or amount of fine bubbles generated can be adjusted. (3) The particle size of the fine bubbles is from several // m to 100 / m. Therefore, it can be controlled freely by adjusting the inflow amount or rotation speed of liquid or gas. (4) Because it is a micro-bubble, the surface area of the bubble is extremely large. It can exchange air with sewage or reaction liquid and neutralizing liquid with high absorption rate or reaction rate. (5) Open the gas self-sucking tube 271 to the atmosphere and only contact the absorption for the purpose -71- 592795 V. Description of the invention (70) or a reactive gas (for example, CO2, HC1, HCN, S02, COC12, fluorine compounds Gas or other reactive gas), it can absorb gas or react with liquid. (6) It is a multi-segment type. Because the same or different liquids and gases are supplied to each stage, the gas can be absorbed or reacted to the liquid with high efficiency. (7) It is possible to adjust the amount of gas inhaled by adjusting only the supply of liquid, which is superior in workability and labor saving. (8) Depending on the viscosity or rotation volume and flow rate of the mixed raw liquid, gas can be introduced into the most suitable liquid introduction tube, which is superior to the freedom of handling or reaction. (9) Since each liquid or gas flows into the body 252 and the internal nozzle portion 255 or the tertiary nozzle 258, more types of liquid or gas can be mixed. (10) The mixed fuel can be produced in a single treatment with a high oxygen rate, which can improve the combustion efficiency of the boiler. (Π) At the same time, different types of exhaust gases or reaction gases from chemical plants can be supplied to the neutralizing solution, cleaning solution, and reaction solution. (12) The supply of ozone gas to farms, etc., followed by the supply of air can achieve high sterilization and high oxygen content. (Π) The pumps 262, 265, and 268 are selected based on only the type of liquid, and the versatility is superior. That is, in Embodiment 23, a gas self-suction hole 261 is provided at the rear of the third nozzle 25 8 to connect the gas self-suction pipe 271. However, the gas self-suction pipe 271 is connected to the secondary side suction pipe 267 and / or the tertiary side suction pipe. 270, instead of the functions (1) to (13) above, the following functions can be obtained. -72- 592795 V. Description of the invention (Ή) (14) In the third nozzle 25 8, there is no hole for receiving gas, etc., so when the front pump 262 or the secondary pump 265, the third pump 268 ON / OFF, etc. Residual pressure is in the device, and it will not cause blockage when the fluid flows countercurrently. (15) The gas mixed into the secondary and / or tertiary liquid is diffused by the moving impeller in the secondary pump 265 and / or the tertiary pump 268, so a large number of finer bubbles can be generated. (Embodiment 24) A microbubble generator according to Embodiment 24 will be described with reference to the drawings. Fig. 33 (a) is an oblique view of a main part of the micro-bubble generator according to Embodiment 24, and Fig. 33 (b) is a side cross-sectional view of the main part. In Fig. 33, 300 is a micro-bubble generator according to Embodiment 24, 301 is a body having a hollow portion that is substantially rotationally symmetrical, and 302 is a tangential opening to the peripheral wall of the body 301 and is connected to a gas-liquid introduction hole. The gas-liquid introduction tube of 302a, the gas-liquid ejection hole provided in the direction of the axis of rotational symmetry of the hollow portion 303, the tank portion 304 disposed on the rear wall of the body 301, and the tank 304 and the body 305 The negative pressure axis of the wall section between 301 forms a heavy through-hole gas self-suction hole in the tank cabinet, 306 is a gas inlet pipe of the tank cabinet provided in the tank cabinet 304, and 307 is a gas connected to the gas ejection hole 303. The liquid ejection guide section 308 is an outflow section for opening a water flow formed at the peripheral portion of the gas-liquid ejection guide section 307, and 309 is a scattering prevention section for preventing liquid from scattering from the outflow section 308. The micro-bubble generator 300 of the twenty-fourth embodiment is greatly different from the micro-bubble generator 1 of the first embodiment in that the body 301 has a tank portion 304 and a gas introduction hole 306 in the tank portion.尙, the micro-bubble generator • 73- V. Description of the invention (72) 3 〇 When the massager which sprays water on the skin surface as a massage device is not used, the constituent of the gas-liquid ejection guide 307 can be omitted. The tank portion 304 is a liquid storage portion formed in a cylindrical shape by covering the rear wall of the body 301, and communicates with the hollow portion 301a through a gas self-suction hole 305 formed in the rear wall of the tank portion. The tank portion 304 is formed to have a diameter substantially the same as the body 301, and has a volume of about 1/20 to 1/4 of the volume of the body 301. Although the cabinet portion 304 is attached to the rear wall of the device body 301 by an adhesive or the like, it is integrally formed on the device body and can be fixed by screwing the screw portion. The gas introduction pipe 306 of the tank part is formed on the upper part of the tank part 304 and has a hole diameter of about 2 mm to 5 mm. Water such as external air stored in the tank part 304 can be used for attractors. The microbubble generator 300 of the twenty-fourth embodiment constructed as described above will be described below with reference to the drawings. Fig. 34 is a description showing the state of use of the micro-bubble generator according to the twenty-fourth embodiment. In Fig. 34, X is a gas shaft formed by the gas self-suction hole 305 from the tank portion in the hollow portion 301a of the container body 301 across the gas ejection hole 303 and the skin surface. First, a gas-liquid introduction pipe 302 of the micro-bubble generator 300 is connected to a tap of a tap water or a pump outlet side, and the liquid flows into the hollow portion of the vessel 301 from the gas-liquid introduction pipe 302 in a tangential direction. The liquid flowing into the hollow portion 301a rotates along the wall surface of the hollow portion 301a and moves from the gas-liquid ejection hole 303 to the gas ejection guide 307, and rotates along the inner wall surface of the gas-liquid ejection guide 307 to collide with the skin surface. Outflow part-74- 592795 V. Description of the invention (73) 308 flows out of the micro-bubble generator 300 through the inner wall surface of the scattering prevention part 309. At this time, centrifugal force is applied to the rotation of the liquid along the peripheral wall of the device body 301, and the vicinity of the center of this swirling flow becomes a low pressure. Therefore, the gas is continuously sucked from the gas suction hole 305 of the tank portion disposed at the substantially central position of the rear wall. A gas axis X is formed in the hollow portion 301a, and at the same time, the skin surface on the front side of the gas-liquid ejection guide portion 307 is attracted. The gas collected on the gas axis X is shredded between the front part and the skin surface Η and becomes fine bubble diffusion, and flows out along the skin surface Η along with the swirling flow from the outflow portion 308. Here, the hollow portion 301a of the micro-bubble generator 300 does not directly communicate with the outside air, but communicates with the tank-side hollow portion 304a of the tank portion 304, and the tank-side hollow portion 304a passes the gas introduction pipe of the tank portion 306 communicates with the outside air, so the suction resistance can be increased to adjust the flow. In addition, since the liquid is stored in the hollow portion 304a on the side of the tank, the suction resistance of the gas from the suction hole 305 in the tank is greater, and the flow rate of the gas sucked into the hollow portion 301a can be reduced. For the micro-bubble generator 300, the attractive force generated by the water jet ejected from the gas-liquid ejection hole 303 is measured, and the following results ① to ⑧ are described. Alas, although the attraction force is weak only at the center, the attraction part can be expanded by providing guides around the ejection holes to increase the attraction force. Alas, 100V-80W is used as the pump system. ① d = 7.0mm, Q = 10.0 liters per minute:: 30g ball ©:: 60g ball © ② d = 7.5mm, Q = 1 0.5 liters per minute:: 30g ball 〇:: 60g ball eight ③ d = 8.2mm , Q = 11.5 liters per minute:: 30g balls 0:: 60 g balls χ -75- V. Description of the invention (74) ④ d = 9.3mm, Q =: 12.5 liters per minute: 30g balls ◎: 60g balls © ⑤ d = 1 0.4mm, Q = 13.5 liters per minute · 30g ball ©: 60g ball © ⑥ d = 11.5mm, Q = 14.5 liters per minute: 30g ball ©: 60 g ball ◎ ⑦ d = 12.5mm, Q = 15.0 liters per minute: 30g balls ©: 60g balls 〇⑧ d = 1 3.5mm, Q = 15.5 liters per minute: 30g balls 〇: 6 0g balls X Here the diameter of the d-type gas ejection hole 303, the Q-type ejection flow rate *. Symbols ◎, 〇, △, and X indicate the evaluation of the attraction force when a rubber ball with a weight of 30 g and a rubber ball with a weight of 60 g are used near the gas-liquid ejection hole 303 for the suction test. Order reduces appeal. From these results, it is clear that the diameter of the gas-liquid ejection hole 303 is in the range of 7 mm and 11 mm, and it is understood that the attraction force becomes higher. However, when the diameter d of the discharge port becomes larger, the bubbles tend to become coarse, and it is necessary to adjust it to an appropriate range in accordance with the required flow rate Q. Incidentally, the flow rate Q cannot be increased at 7mm, but it can ensure the attractiveness required for massage such as skin and face. At llmm, the flow rate Q can be increased, and the required rotational force of the water flow can be maintained in the hollow portion. The micro-bubble generator 300 according to the twenty-fourth embodiment constructed as described above, with the functions obtained in the first embodiment, can obtain the following functions. (1) Since the tank cabinet portion 304 is provided, the water pressure in the tank cabinet portion gas self-suction hole 305 is given according to the water stored in the tank cabinet portion 304, which can make the suction resistance of the tank cabinet gas self-suction hole 305 large. It can stably eject fine bubbles and has excellent controllability. (2) When the diameter of the gas self-suction hole 305 in the tank cabinet is increased, a large amount of gas cannot be sucked in, and the attractive force of the gas-liquid ejection hole 303 can be maintained to produce fine bubbles -76- 592795 V. Description of the invention (75) When the device 300 is used as a massager, a high massage effect or a washing effect can be obtained. (3) The gas self-suction holes in the tank can be formed with a large diameter, which is not easy to cause clogging due to dust or scale. It is superior in maintenance. (4) When the micro-bubble generator 300 is used as a massager, it is provided with a scattering prevention portion 309, so that no liquid flowing out of the outflow portion 308 is scattered to the front, and the usability is excellent. (Embodiment 25) The microbubble generator according to Embodiment 25 will be described below with reference to the drawings. Fig. 35 is a side sectional view of a main part of a micro-bubble generator according to Embodiment 25; As shown in FIG. 35, 331 is a micro-bubble generator of Embodiment 25, 332 is a body having a hollow portion 332a having a shape gathered from the rear to the front end, and 332c is an edge portion along the opening 332b. The female screw portion and the 333 male screw portion 333a standing upright are screwed to the female screw portion 3 32c so as to be rotatable around the opening member 332b. 334 is a gas self-suction hole in the tank cabinet opening to the rotating member 333, 335 is a gas self-suction hole in the tank cabinet 334 arranged on the rear wall of the rotation member 333, and the hollow body 332a of the communication body 3 32 has a tank The tank cabinet portion of the hollow portion 3 3 5a, 336, is a tank gas inlet pipe having a tank hole at the upper side of the tank portion 33 5. The microbubble generator 331 of the twenty-fifth embodiment is different from the microbubble generator 300 of the twenty-fourth embodiment in that a rotating member 333 is placed on the device-77- 592795. V. Description of the invention (76) The opening portion 332b of the body 332 The tank cabinet portion 335 is disposed at a point of the rotating member 333. Alas, the female threaded portion 332c forms a section on the wall side behind the body 332, but the female threaded portion 332c is made shorter than the length of the body 332 axis by less than 1/10, so as not to interfere with the inside of the body 332. The swirling water flow can be maintained in a good bubble generation state. The microbubble generator 331 of the twenty-fifth embodiment constructed as described above will be described below with reference to the drawings. Fig. 36 is a rear cross-sectional view of a main portion illustrating the gas self-suction hole of the tank portion superimposed on the gas axis in the twenty-fifth embodiment. In Fig. 36, 333b is the center of rotation of the rotating member 333, and the hollow shaft 332a of the Y-system body 32 is formed from the gas self-suction hole 334 of the tank section across the gas-liquid ejection hole 303 and the skin axis. The gas self-suction hole 334 in the tank is inserted through the rotation center 333b slightly. Accordingly, the area of the overlapping portion of the gas axis Y formed in the device body 332 and the gas self-suction holes 3 34 in the tank portion can be adjusted by turning the rotating member 333 when viewed from the axial direction. By adjusting this overlap, it can be used to adjust the suction resistance of the gas self-suction holes 3 34 in the tank, and the amount of gas sucked from the gas self-suction holes 334 in the tank, or the shape of the gas can be adjusted. That is, operations other than the gas self-suction hole and the overlap adjustment of the gas axis are the same as those in the twenty-fourth embodiment, and a description thereof will be omitted. The micro-bubble generator according to the twenty-fifth embodiment is constituted as described above. Therefore, by adding the functions obtained in the twenty-fourth embodiment, the following functions can be obtained. (1) The rotating member 333 has its rotating shaft set at an eccentric position from the center of the device body 332 on the rear wall of the device body 332, and the gas self-suction hole 334 of the tank part is shaped as the rotating shaft -78- 592795 v 77 () It is located at the eccentric position, so the projective section on the wall behind the gas axis Y formed in the body 332 can be adjusted by rotating or rotating the rotating member 333 ', and the area of the overlapping portion of the gas self-suction hole 334 in the tank cabinet can be adjusted. Changing the suction resistance of the gas self-suction hole 334 from the tank part can be used to adjust the amount of gas sucked from the gas self-suction hole 334 from the tank part. (2) The central part of the body 3 32 is decompressed by the liquid rotating flow, and the gas is sucked from the gas suction hole 334 in the tank part arranged on the rear wall of the body 3 32, and the gas can be in the center part of the body 332 A gas axis is formed. The shape of the gas axis Y is adjusted by rotating the rotating member at a predetermined angle, so the operability is excellent. • [Industrial Application Possibility] The micro-bubble generator according to item 1 of the patent application scope of the present invention achieves the following effects. (1) The gas-liquid mixed fluid flows from the gas-liquid introduction hole into the body. The gas-liquid mixed fluid flowing in from the tangential direction is rotated along the inner wall of the body to mix the gas-liquid sharp side and rotate to the hollow portion. The gas-liquid ejection hole side moves in the direction of the symmetry axis. At this time, according to the difference between the specific gravity of the liquid and the gas, the liquid acts on centrifugal force, and the gas acts on centripetal force. Large bubbles gather on the central axis to form a negative pressure axis (gas axis). In addition, the liquid in the liquid near the gas-liquid ejection hole from the negative pressure axis actuates a force to enter the micro-bubble generator. On the one hand, when the gas-liquid mixed flow system in the micro-bubble generator is rotated closer to the gas-liquid ejection hole, the rotation speed becomes faster and the pressure becomes higher. The maximum rotation speed and pressure become near the gas-liquid ejection hole. Negative pressure liquids are pushing each other. Therefore, the gas collected on the negative pressure axis is formed by a gas-liquid mixed fluid that rotates with the negative pressure fluid. -79- 592795 V. The gap formed by the description of the invention (78) turns into a compressed gas to pass through with the gas-liquid mixed fluid in a large amount. Fine bubbles are ejected from the gas-liquid ejection holes into the liquid. (2) The shearing force is generated between the gas collected on the negative pressure liquid and the gas on the negative pressure axis, and the gas collected on the negative pressure shaft is ejected from the gas-liquid ejection hole, such that a large amount of fine bubbles can be generated. (3) The gas-liquid mixed fluid that previously mixes gas and liquid is supplied to the gas-liquid introduction hole, so the mixing ratio of the gas can be adjusted, and fine bubbles can be generated under controlled conditions. (4) The water flow containing fine bubbles can be fully contacted with the liquid to be treated, which can increase the amount of dissolved oxygen or the reaction efficiency. (5) The liquid containing bubbles is discharged in a predetermined direction, and the discharge state of the water flow can be controlled in a wide range, such as rivers or water purification equipment, to efficiently perform a large amount of water treatment. (6) When the micro-bubble generator is used in a gas-liquid reaction device or a sewage treatment device, the residual pressure (negative pressure) in the device is used when the pump is ON / OFF, etc. When the fluid is countercurrent, the micro-bubble generator is useless The pores of the collected gas do not cause clogging by reactants or dirt. (7) The micro-bubble generator does not have pores for receiving gas. When the body of the micro-bubble is pressurized, it does not cause backflow and can eject a larger number of finer bubbles. (8) A large number of fine bubbles can be generated, so that the contact area between gas and liquid can be large, and the reaction in the gas-liquid reaction device or the purification of the purification device can be promoted. In addition, it can increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fish trucks. -80- V. Description of the Invention (79) According to the fine bubble generator of item 2 of the scope of patent application, in addition to the effect of claim 1, the following effects are obtained. (1) The gas-liquid ejection holes are located on the left and right sides of the axis of rotation symmetry of the hollow portion, so the range that can be treated with a micro-bubble generator can be expanded, and the water treatment can be efficiently performed, which is superior to productivity and convenience. Sex. (2) The gas-liquid ejection holes arranged on the left and right sides of the axis of rotation symmetry have different ejection characteristics, which can control the ejection state of the fine bubbles to a predetermined state, and can efficiently perform water treatment. (3) There are two gas-liquid ejection holes, so the amount of gas-liquid mixed fluid ejected from the micro-bubble generator can be doubled compared with a single hole, and a large amount of water treatment can be performed. According to the micro-bubble generator of item 3 of the scope of patent application, in addition to the effects of claim 1 or 2, the following effects are obtained. (1) The inner peripheral wall of the gas-liquid ejection hole has an inclined portion that expands the diameter at a predetermined angle to the ejection side. Therefore, the water flow containing micro-bubbles or the gas before becoming micro-bubbles limits the diffusion range to a predetermined angle to depress the water flow. , And the decompression of this part can effectively produce fine bubbles in the gas-liquid mixed fluid. (2) The angle of the inclined part or the length of the ejection direction is adjusted according to the quality or pressure of the supplied water, the flow rate, the temperature, etc., and can be adjusted in combination. The size of the fine bubbles diffused in the water stream or Collection of bubbles, etc. (3) When the gas-liquid ejection holes are arranged on both sides of the axis of rotational symmetry, the inclination angle of each of the inclined portions can be given a specific directionality from the micro-bubble generator with the entire ejected water flow. -81- of the cleaning layer, etc. V. Description of the Invention (8 ()) Excellent controllability. According to the micro-bubble generator in item 4 of the scope of patent application, in addition to the effects of any one of the claims 1 to 3, the following effects are obtained. (1) When the gas-liquid mixed fluid flows from the gas introduction hole into the device, the gas-liquid mixed flow system flowing from the tangential direction rotates along the inner wall of the device, and the sharp edge mixed gas-liquid moves toward the gas-liquid ejection hole side. At this time, according to the difference between the specific gravity of the liquid and the gas, the liquid acts on the centrifugal force, the gas acts on the centripetal force, and the large bubbles converge on the central axis to form a negative pressure axis. In addition, the cap portion is actuated by the negative pressure shaft to attract a force in the micro-bubble generator. On the one hand, the gas-liquid mixing in the body. When the flow system rotates closer to the gas-liquid ejection hole, the rotation speed becomes faster, the maximum rotation speed is near the gas-liquid ejection hole, and the cap portion is opposite to the gas-liquid ejection hole. The caps are pushed against each other. Therefore, the gas collected on the negative pressure axis is compressed, sheared, and passed through between the rotation of the cap portion and the rotation of the cap portion of the cap portion, and the gas-liquid mixture is ejected from the fine particles together with the gas-liquid mixed fluid. The holes were sprayed out of the liquid. (2) A large amount of fine bubbles can be generated, so that the contact area between gas and liquid can be large to promote the reaction in the gas-liquid reaction device or the purification in the purification device. In addition, it can increase the amount of dissolved oxygen in the water (sea water) of aquaculture ponds or farms or fresh fishes. (3) It can generate fine air bubbles, make the surface area of air bubbles extremely large, and can supply air or reaction gas to sewage or reaction liquid and neutralizing liquid with high absorption or reaction rate. (4) Only by adjusting the inflow amount or rotation speed of liquid or gas, the particle size of fine bubbles can be freely controlled in the range of n m ~ 1 0 0 // m. -82- 592795 V. Description of the Invention (81) According to the micro bubble generator of item 5 of the scope of patent application, in addition to the effect of item 4, the following effects can be obtained. (1) It has a cap support part to fix the cap part, so the cap part does not move in the direction of rotation of the gas-liquid mixed fluid, and it can effectively perform a shearing force between the cap part and the ejected gas. The gas collected on the negative pressure axis is ejected as if it is torn, and can generate a large amount of fine bubbles. According to the micro-bubble generator of item 6 of the scope of patent application, in addition to the effect of claim 5, the following effects can be obtained. (1) The cap part support part and / or cap part is made of a flexible material, so the cap part can move toward and away from each ejection hole within the allowable range such as the deflection of the cap support part. . Therefore, the cap portion is a gas that is attracted to the gas-liquid ejection direction by the negative pressure axis and is ejected from the gas-liquid ejection hole. The cap portion is compressed and sheared at a bulge formed on the back side of the cap portion. More fine bubbles. (2) Depending on the pressure of the pump or the diameter of the gas-liquid introduction hole or gas-liquid ejection hole, the shape or volume of the device, it corresponds to the flow rate or flow rate of the gas-liquid mixed fluid during rotation and the gas-liquid ejection hole in the bulge. The size of the gap between the side surface and the gas-liquid ejection hole changes, which is superior to versatility. According to the micro-bubble generator of item 7 of the scope of patent application, in addition to the effects of any one of the claims 4 to 6, the following effects are obtained. (1) Since it has a raised portion bent on the protruding shape of the back side of the cap portion, a gas-liquid mixed fluid having fine bubbles can be guided to flow along the raised side. (2) When the material of the cap part or the cap support part is made of a flexible material, -83- • 4 592795 V. Description of the invention (82) The bulging part is attracted by the negative pressure axis to the gas-liquid ejection hole to make the flow The road is narrow, so the gas in the fluid ejected from the gas-liquid ejection hole is compressed and sheared at the bulge, and then the cap and the external liquid are separated by the cap to suppress the influence of the negative pressure liquid to minimize the ejection force. It becomes strong and can produce a lot of finer bubbles. According to the micro-bubble generator of item 8 of the scope of patent application, in addition to the effect of claim 4, the following effects are obtained. (1) The cap is freely movable between the gas-liquid ejection hole and the frame-like frame. The cap is attracted by the negative pressure in the direction of the gas-liquid ejection hole, and the gas system ejected from the gas-liquid ejection hole is compressed and sheared by the cap, so a large number of fine bubbles can be generated. (2) Depending on the discharge pressure of the pump or the diameter of the gas-liquid introduction hole or gas-liquid ejection hole, the shape or volume of the body, the flow rate or flow rate of the gas-liquid mixed fluid during rotation can be changed, and the gas-liquid ejection of the cap can be changed. The size of the surface on the side of the hole and the gap of the gas-liquid ejection hole have excellent stability and controllability of the water flow. (3) When a negative pressure shaft is formed in the body, the cap portion is maintained at a predetermined position by the attraction force of the negative pressure shaft and the force of the ejected gas-liquid mixed fluid, so there is almost no contact with the frame-like frame or gas-liquid The ejection holes are not easy to wear and have excellent durability. According to the micro-bubble generator of item 9 of the scope of patent application, in addition to the effects of any one of the claims 1 to 8, the following effects can be obtained. (1) Due to the tank section, the air suction resistance attracted by the gas self-suction holes in the tank section and the gas introduction pipe in the tank section can be large. When the diameter of the gas self-suction holes in the tank section is increased, Can not suck in a large amount of gas, it can be in a stable state -84- 592795 V. Description of the invention (83) The state attracts gas. (2) The installation of a large-capacity tank section can alleviate external pressure fluctuations, so it is easy to control the size, shape, and production volume of fine air bubbles generated in the water stream, and it has excellent operability. (3) Since the diameter of the gas self-suction hole in the tank can be made large, it is not easy to cause clogging due to dust, scale, etc., and it has excellent maintenance. According to the micro-bubble generator of item 10 of the scope of patent application, in addition to the effects of any one of the claims 1 to 8, the following effects can be obtained. (1) Equipped with an internal nozzle for ejecting the secondary liquid in the hollow portion, so that the gas-liquid mixed fluid supplied from the liquid introduction pipe and the secondary liquid are brought into effective contact in the hollow portion, which can generate finer air bubbles and improve Productivity in water treatment. (2) The gas-liquid mixed fluid or liquid continuously flowing from the secondary liquid introduction pipe into the internal hollow portion in a tangential direction is rotated while moving toward the internal nozzle portion side. At this time, the centrifugal force acting on the liquid causes the center of the swirling flow to become a negative pressure, so the gas gathers at the center to form a negative pressure axis. On the one hand, the liquid flowing from the gas-liquid introduction hole into the hollow portion moves toward the gas-liquid ejection hole side while rotating. In this way, the supplied liquids are merged by the secondary liquid introduction tube and the gas-liquid introduction hole in the hollow portion, and a large number of fine bubbles can be generated. (3) When the rotation direction of the ejected gas-liquid mixed fluid is opposite to the rotation direction of the liquid in the hollow portion, the gas gathered on the negative pressure axis instantly forms fine bubbles, mixes with the liquid in the hollow portion, and is ejected from the gas-liquid ejection hole. Therefore, when the gas-liquid ejection hole is arranged in the air, a liquid containing a large amount of fine bubbles can be ejected. 0 -85- 592795 V. Description of the Invention (84) (4) In the hollow part, there are no holes for receiving gas, etc., so The micro-bubble generator is used in chemical reaction tanks or gas cleaning tanks of chemical petroleum plants. In sewage treatment tanks, the residual pressure is retained in the device when the pump is ON / OFF, etc. When the fluid flows countercurrently, it will not cause the reactant or Blockage of dirt.

(5) It can be made into fine bubbles, so the surface area of the bubbles is extremely large, and it can supply air or reaction gas to sewage or reaction liquid, neutralizing liquid with high absorption or reaction rate. According to the microbubble generator of item 11 of the scope of patent application, in addition to the effect of claim 1, the following effects are obtained. (1) Since different types of liquids or gases flow into each swirling flow generating section, more types of liquids or gases can be mixed. (2) It can process mixed fuel in one time to produce high oxygen rate, which can improve the combustion efficiency of boilers, etc.

(3) In factories such as chemical plants, different types of exhaust gas or reaction gas can be supplied to the neutralizing solution or cleaning solution and reaction solution at the same time. (4) Supplying ozone gas to farms, etc., and then supplying air to achieve high sterilization and high oxygen content. According to the micro-bubble generator of item 12 of the scope of the patent application, in addition to the effect of the request item 10 or 11, the following effects are obtained. (1) From the internal nozzle section to the hollow section, the gas mixed fluid enters while rotating, so it can efficiently mix gas-liquid mixed fluid and liquid. (2) The rotation force of the internal nozzle part is added to the rotation force of the gas-liquid mixed fluid to generate a stronger swirling flow. Therefore, with a good momentum, a large number of fine bubbles can be ejected to a wider range. -86- 592795 V. Description of the invention (85) (3) When the liquid introduction hole of the internal nozzle part connected by the secondary liquid introduction hole or the linear arrangement is opened in the gas-liquid introduction hole and the tangential direction of the opposite direction, it is formed The multi-stage micro-bubble generator can improve the gas absorption rate or reaction rate of liquid. (4) Used to adjust the rotation speed of the liquid in the hollow part or each internal nozzle part, and a large number of fine bubbles can be ejected from the gas-liquid ejection hole. According to the microbubble generating device having the microbubble generator of item 13 of the scope of patent application, the following effects can be obtained by the structure. (1) The micro-bubble generator does not have pores for receiving gas, so there is residual pressure in the device when the pump is ON / OFF, etc., and the fluid will not cause clogging when it flows countercurrently. (2) The gas-liquid mixed fluid sucked into the pump is agitated with the liquid by the impeller of the pump. The diffused air bubbles are expelled from the pump's outlet through the gas-liquid discharge pipe. (3) The gas-liquid mixed fluid supplied from the gas-liquid discharge pipe to the micro-bubble generator is stirred in the hollow part to become fine bubbles. Compared with the previous technology, finer bubbles can be generated. According to the micro-bubble generating device provided with the micro-bubble generator of item 14 of the scope of patent application, and the effect of claim 13 is added, the following effects can be obtained. (1) The gas system sucks the air inlet liquid suction pipe from the suction hole of the gas from the suction pipe. There is no pores for receiving gas in the micro bubble generator, so the residual pressure is kept in the device when the pump is turned on / off, etc. And the fluid will not cause clogging when it flows backward. (2) When the pump is driven, water flow occurs in the gas-liquid suction pipe, and the jet effect draws the gas from the gas-liquid suction pipe from the suction hole, and the gas is sucked into the gas with the accompanying flow of liquid. -87- 592795 5. Description of the invention (86) Liquid is sucked into the tube. The gas-liquid mixed fluid containing gas is sucked into the moving impeller from the suction port of the pump. The gas-liquid mixed fluid sucked into the pump is diffused by the moving impeller ' of the pump, and the air bubbles are discharged from the pump discharge port into the gas-liquid discharge pipe. (3) It is possible to control the flow rate of the gas supplied from the suction hole of the gas in the suction pipe section, so the amount or size of the fine bubbles can be adjusted appropriately. According to the micro-bubble generating device equipped with the micro-bubble generator of item 15 of the scope of patent application, and adding the effect of claim 14, the following effects can be obtained. (1) Since the gas introduction pipe is connected to a desired container or the like, a desired gas can be caused to flow into the gas-liquid suction pipe. According to the micro-bubble generating device having a micro-bubble generator according to item 16 of the scope of the patent application, the effects of claim 15 can be added to obtain the following effects. (1) Since the gas adjustment valve can be adjusted, the amount of gas mixed in the liquid can be adjusted, so that the size of the fine bubbles generated can be adjusted. According to the micro-bubble generating device equipped with the micro-bubble generator of item 17 of the scope of patent application, and adding the effect of claim 15 or 16, the following effects can be obtained. (1) The gas can be forcibly supplied by the air pump, so the amount of gas mixed with the liquid can be increased. According to the micro-bubble generating device provided with the micro-bubble generator of the eighth aspect of the patent application, and the effect of any one of the claims 13 to 17 can be obtained, the following effects can be obtained. (1) The liquid pump is arranged in the liquid, so it is not necessary to configure the pump on the land -88- 592795 V. The place of the invention description (87) has superior usability. (2) The fluid is directly sucked from the suction port of the liquid-in-pump, and the gas-liquid suction pipe is not needed, so the number of parts is reduced and the productivity is superior. (3) The open suction port is in the liquid, and the on / OFF of the pump in the liquid will not exert residual pressure, and the fluid will not flow back into the gas introduction pipe to cause blockage. According to the micro-bubble generating device equipped with the micro-bubble generator of item 19 of the scope of patent application, and adding the effect of claim 18, the following effects can be obtained. (1) The rotating impeller formed in the shape of a bladed wheel is rotated in the suction chamber, and the surrounding liquid is sucked into the suction chamber from the suction opening opened to the rotating shaft portion of the moving impeller, and can be connected from the tangential direction to the The gas-liquid discharge pipe on the peripheral wall of the suction chamber discharges the water flow. (2) The motor chamber for driving the moving impeller and the suction chamber with moving impeller are integrated, so it has a small size and excellent portability, and can be easily applied to water purification plants or sedimentation tanks. According to the micro-bubble generating device provided with the micro-bubble generator of item 20 of the scope of patent application, the effect of claim 19 is added, and the following effects are obtained. (1) The manifold is installed near the suction port of the liquid pump, so a negative pressure is generated in the manifold, and the gas can be sucked into the negative pressure pipe from the gas introduction pipe to be mixed into the liquid. (2) The inner diameter of the negative pressure pipe is larger than the inner diameter of the manifold, so when the fluid flows from the manifold to the negative pressure pipe, a negative pressure is generated in the negative pressure pipe, and the gas is sucked into the negative pressure pipe from the gas introduction pipe. Mix into liquid. (3) Open the manifold to the suction inlet of the liquid pump, so -89- 592795 of the liquid pump V. Description of the invention (88) Residual pressure will not be applied during ON / OFF, and the gas introduction pipe will not flow backward. The fluid did not cause clogging. According to the micro-bubble generating device having the micro-bubble generator of item 21 of the scope of patent application, in addition to the effects of any one of claims 17 to 20, the following effects are produced. (1) There is no need for a drive unit such as a motor for an air pump, so the productivity is excellent and the entire device can be miniaturized. According to the micro-bubble generating device equipped with the micro-bubble generator of item 22 of the patent application scope, the following effects are produced in addition to the effects of any one of the claims 13 to 21. (1) A plurality of micro-bubble generators can eject a large number of micro-bubbles in a predetermined direction from each of the gas-liquid ejection holes', so that micro-bubbles can be ejected in a wider range. (2) Because the angle of the inclined portion of each gas-liquid ejection hole is adjusted, it is used to control the discharge state of the entire water flow, and then a wide range of water treatment is performed efficiently. Explanation of symbols 1, 3, 4, 5, 40, 101, 121, 13 1, 201, 221, 231, 241, 251, 300, 33 1, ... Micro-bubble generators 233, 242 ... Micro-bubble generators la, 3a ,, 5a, 41, 102, 122, 202, 2 5 2, 301, 332 ... body lb, 3b, 4b, 5b, 43, 103, 123, 204b, 2 5 4b, 302 ... gas-liquid introduction tube 1. , 3 (:, 4 (:, 5 (:, 42, 104, 124, 2043, 2543, 3 023 .. Gas-liquid introduction? 1 ld, 3d, 4d, 5d, 44, 45, 105, 1 25, 203, 25 3, -90- 592795 V. Description of the invention (89) 303 ... Air-liquid introduction hole (front-end ejection hole) le, 105a, 125a ... Clearance 2a ..... Nozzle 12 ... Pump 12a, 22a, 28b, 210a, 214a, 262a, 265a Suction ports 12b, 2 2b, 28c, 210b, 214b, 262b, 265b ... Spit ports 13 ....... Gas-liquid suction pipes 14,23 ... Gas-liquid discharge pipe · 15.26 .. .. gas introduction pipe 15a, 208, 2 1 3, 223, 243, 261 ... gas self-suction hole (internal nozzle gas self-suction hole) 16.217 ... gas flow adjustment valve 18 .... ..Liquid phase 22 ....... Liquid pump 22c ... Suction chamber 22d ... Motor chamber 22f, 28e..Rotating impeller 24 ......... Manifold 25 ... Negative pressure pipe 28 ... air pump and liquid medium pump 29 ... first gas introduction pipe 31 ... second gas introduction pipe 32 ... different flow adjustment valve 106 ..... cap support部 -91- 592795 V. Description of the invention (9G) 1 07,1 33 .. Fixed cap part 107a ..... Bulge part 107b ..... Extended setting part 132 ... Frame frame 132a ..... frame part 1 32b ..... upstanding portion 204a ..... front fluid introduction hole 204b ..... front fluid introduction pipe 205.255 .. internal nozzle portion 206.256 .. secondary ejection hole 206a ..... internal hollow portion 207a, 2 3 2a, 2 5 7a, 260a ......... Secondary fluid introduction holes 207b, 232b, 257b ..... Secondary liquid introduction pipes 2 1 0,262 ......... Front end pump 211. ... Front-end discharge pipe 212... Front-side discharge pipe 214... Secondary pump 2 1 5 266... Secondary-side discharge pipe 2 1 6, 267... Tube 258 ..... Tertiary nozzle 259... Tertiary ejection hole 260 a ... tertiary liquid introduction hole 260 b... Tertiary liquid introduction tube 268 ... .. Three-stage pump-92- 592795 V. Description of the invention (91) 270 ........ Three-side suction pipe 301a, 332a ... Hollow section 304 ..... Tank cabinet section 305.334 .. .. Gas self-suction holes in the tank part 306.336.... Gas inlet pipe 307 in the tank part ... Gas-liquid ejection guide 308 ... Outflow part 309 ... Scatter prevention part 332b ... Opening part 333 ... Rotating member parent, ya 3 .... negative pressure shaft -93-

Claims (1)

4592795 6. Scope of patent application (Pain No. 90119121 "Micro-bubble generator and micro-bubble generating device with such a generator" patent (Amended on June 20, 1992) 6. Scope of patent application: 1. A micro-bubble The generator includes: a body having a hollow portion formed to be approximately rotationally symmetric and having a diameter reduced toward one or both sides of the axis of rotational symmetry; a gas introduction hole opened in a tangential direction to a peripheral wall portion of the body; and a gas-liquid ejection The hole is arranged in the direction of the axis of rotational symmetry of the hollow part. 2. The micro-bubble generator of item 1 in the scope of the patent application, wherein the gas-liquid ejection holes are respectively provided on the left and right ends of the axis of rotational symmetry. · For example, the micro-bubble generator in item 1 of the patent application scope, wherein the gas-liquid ejection hole is provided with an inclined portion with an enlarged diameter in the ejection direction, and the inclination angle thereof is set to a predetermined range. The bubble generator, wherein the gas-liquid ejection hole is provided with an inclined portion having an enlarged diameter in the ejection direction, and the inclination angle thereof is set to a predetermined range. The micro-bubble generator surrounding item 1 includes: a cover portion which is disposed in front of the gas-liquid ejection hole with a space; and a cap portion which is fixed to the device by an extension portion extending to the cover portion. 6. The micro-bubble generator according to item 2 of the scope of patent application, which includes: a cover portion arranged at a distance in front of the gas-liquid ejection hole; and a fixed cap portion extended to The extension part of the cover part is fixed to the outer wall of the device. 592795 6. Application for patent scope 7. The micro-bubble generator according to item 3 of the patent application scope, which includes: The cover part is arranged at intervals. Before the gas-liquid ejection hole; and a fixed cap portion, which is extended to the cover portion and fixed to the outer peripheral wall of the device. 8. The micro-bubble generator as described in item 4 of the scope of patent application , Which includes: a cover portion, which is arranged at an interval in front of the gas-liquid ejection hole; and a fixed cap portion, which is extended on the cover portion and is fixed to the outer peripheral wall of the device. 9. Rushen The micro-bubble generator according to item 5 of the patent, wherein the base end side is disposed on the outer peripheral wall of the body, and the other end side is provided with a cap support portion that supports the fixed cap portion. 1 0 The micro-bubble generator of 6 items, wherein the base end side is arranged on the outer peripheral wall of the body, and the other end side is provided with a cap support portion that supports the fixed cap portion. A micro-bubble generator, wherein the base end side is arranged on the outer peripheral wall of the device body, and the other end side is provided with a cap support portion that supports the fixed cap portion. 1 2 · The micro-bubble generation as described in item 8 of the scope of patent application Device, wherein the base end side is arranged on the outer peripheral wall of the device body, and the other end side is provided with a cap support portion for supporting the fixed cap portion. 1 3 · The micro-bubble generator according to item 9 of the patent application scope, wherein The cap portion supporting portion and / or the fixed cap portion is formed of a flexible material such as synthetic resin or rubber. 592795 6. Scope of patent application 14. The micro-bubble generator according to item 1 of the patent application scope, wherein the cap portion supporting portion and / or the fixed cap portion is formed of a flexible material such as synthetic resin or rubber. 1 5 · The micro-bubble generator according to item i 丨 in the scope of patent application, wherein the cap portion supporting portion and / or the fixed cap portion is formed of a flexible material such as synthetic resin or rubber. 16. The micro-bubble generator according to item 12 of the application, wherein the cap portion supporting portion and / or the fixed cap portion is formed of a flexible material such as synthetic resin or rubber. 1 7. The micro-bubble generator according to any one of claims 5 to 16 in the patent application scope, wherein the fixed cap portion is provided with a bulge formed on the opposite surface of the gas-liquid ejection hole. 18. The micro-bubble generator according to any one of items 5 to 8 of the scope of patent application, which includes a frame-like frame arranged on the outer peripheral wall of the device body, and a frame-shaped frame and a gas-liquid ejection hole. It can be loosely fitted and held in between to form a cap portion such as a ball shape or an egg shape. 19. The micro-bubble generator according to any one of claims 1 to 16 of the scope of patent application, which comprises: a trough cabinet portion arranged on the rear wall of the device body; and a wall passing through the trough cabinet portion and the device body A self-suction hole for the gas of the tank part; and a gas introduction pipe for the tank part where the tank part is placed. 2 〇. The micro-bubble generator according to item 17 of the scope of patent application, which comprises: a trough cabinet portion arranged on the rear wall of the device body; a trough cabinet formed through the trough cabinet portion and the wall portion between the device body Self-suction holes for internal gas; and a gas introduction pipe for the cabinet part of the cabinet part where the groove 592795 is provided. 21. The micro-bubble generator according to item 18 of the patent application scope, which comprises: a trough cabinet portion arranged on the rear wall of the device body; and a trough cabinet gas formed through the trough cabinet portion and a wall portion between the device body A self-suction hole; and a gas inlet pipe of the tank cabinet portion provided with the tank cabinet portion. 22 · The micro-bubble generator according to any one of the items 1 to 16 of the scope of patent application, which includes an internal nozzle portion provided in the direction of the gas-liquid ejection hole and disposed in the hollow portion; connected to the An internal hollow portion on the rear side of the internal nozzle portion; and a secondary liquid introduction tube provided in a tangential direction of the internal hollow portion. 23. The micro-bubble generator according to item 17 of the scope of patent application, which includes an internal nozzle portion disposed in the hollow portion in a direction toward the gas-liquid ejection hole; An internal hollow portion; and a secondary liquid introduction tube provided in a tangential direction of the internal hollow portion. 24. The micro-bubble generator according to item 18 of the scope of patent application, which includes an internal nozzle portion provided in the hollow portion in a direction toward the gas-liquid ejection hole; and a side portion connected to the rear portion of the internal nozzle portion. An internal hollow portion; and a secondary liquid introduction tube provided in a tangential direction of the internal hollow portion. 25. The micro-bubble generator according to item 22 of the scope of patent application, which has the internal nozzle portion, the internal hollow portion, and the swirling flow generating portion of the secondary liquid introduction tube are provided in the hollow in a plurality of stages in a nest shape. unit. Sixth, the scope of patent application 26. For example, the micro-bubble generator of item 23 of the scope of patent application, which has the internal nozzle portion, the internal hollow portion 'and the rotating flow generating portion of the secondary liquid introduction tube are nested in multiple stages. The ground is provided in the hollow portion. 27. The micro-bubble generator according to item 24 of the patent application scope, which has the internal nozzle portion, the internal hollow portion 'and the swirling flow generating portion of the secondary liquid introduction tube are arranged in the hollow in a plurality of stages in the nest. unit. 28. The micro-bubble generator according to item 22 of the patent application scope, wherein the secondary liquid introduction pipe is connected to the gas-liquid introduction hole at the rear side of the internal nozzle portion in the same or opposite tangential direction. 29. The micro-bubble generator according to item 23 of the patent application scope, wherein the secondary liquid introduction pipe is connected with a gas-liquid introduction hole at the rear side of the internal nozzle portion in the same or opposite tangential direction. 30. The micro-bubble generator according to item 24 of the patent application scope, wherein the secondary liquid introduction pipe is connected with a gas-liquid introduction hole at the rear side of the internal nozzle portion in the same or opposite tangential direction. 31. The micro-bubble generator according to item 25 of the application, wherein the secondary liquid introduction pipe is connected to a gas-liquid introduction hole opening on the rear side of the internal nozzle portion in the same or opposite tangential direction. 32. The micro-bubble generator according to item 26 of the patent application, wherein the secondary liquid introduction pipe is connected to the gas-liquid introduction hole at the rear side of the internal nozzle portion in the same or opposite tangential direction. 33. For example, the micro-bubble generator of item 27 in the scope of patent application, wherein the secondary liquid introduction pipe is connected with the gas-liquid introduction hole at the rear side of the internal nozzle portion 592795 6. The scope of the patent application is opened in the same direction or opposite direction Tangent connector. 34. The micro-bubble generator according to item 22 of the scope of application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 35. The micro-bubble generator according to item 23 of the scope of patent application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole . 36. For example, the micro-bubble generator of claim 24, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 37. For example, the micro-bubble generator of claim 25, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 38. The micro-bubble generator according to item 26 of the patent application, wherein the rear wall of the internal hollow portion or the rear wall of the internal hollow portion of the swirling flow generating portion at the end is provided with an internal nozzle gas self-suction hole . 39. The micro-bubble generator according to item 27 of the scope of patent application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 40. The micro-bubble generator according to item 28 of the application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 4 1 · If the micro-bubble generator of item 29 in the scope of patent application, which is equipped with 592795 6. The scope of the patent application is in the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end, which is equipped with an inner portion Nozzle gas self-suction. 42. The micro-bubble generator according to item 30 of the application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 43. The micro-bubble generator according to item 31 of the scope of patent application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole By. 44. The micro-bubble generator according to item 32 of the scope of application, wherein the rear wall of the internal hollow portion or the rear wall of the internal hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 45. The micro-bubble generator according to item 33 of the patent application, wherein the rear wall of the inner hollow portion or the rear wall of the inner hollow portion of the swirling flow generating portion at the last end is provided with an internal nozzle gas self-suction hole. . 46. A micro-bubble generating device with a micro-bubble generator, comprising: a micro-bubble generator according to any one of claims 1 to 45; a pump for supplying a gaseous mixture to the micro-bubble generator A gas-liquid suction pipe whose downstream side is connected to the suction port of the pump; and a gas-liquid discharge pipe whose upstream side is connected to the pump outlet and the downstream side is connected to the gas-liquid introduction hole of the micro-bubble generator. 47. The micro-bubble generating device having a micro-bubble generator according to item 46 of the scope of application for a patent, which has a gas self-suction hole in a suction pipe portion provided in a prescribed portion of the gas-liquid suction pipe. Sixth, the scope of patent application 48. For example, the micro bubble generating device with a micro bubble generator in item 47 of the scope of patent application, one end of which is connected to the gas self-suction hole of the suction pipe part, and the other end is provided with an opening or reaction with the air A gas introduction pipe communicating with the gas container. 49. The fine bubble generating device with a fine bubble generator according to item 48 of the scope of the patent application, wherein a predetermined portion of the gas introduction pipe is provided with a gas flow adjustment valve for adjusting an opening area of the gas introduction pipe. 50. The micro-bubble generating device having a micro-bubble generator according to item 48 of the scope of the patent application, which includes an air pump provided in a prescribed portion of the gas introduction pipe. 51. The micro-bubble generating device having a micro-bubble generator according to item 49 of the scope of patent application, which includes an air pump provided in a prescribed portion of the gas introduction pipe. 52. The micro-bubble generating device having a micro-bubble generator according to any one of claims 46 to 51 in the scope of the patent application, wherein the pump is a liquid-to-liquid pump for immersing the whole in a liquid. 53. The micro-bubble generating device with a micro-bubble generator according to item 52 of the patent application scope, wherein the liquid pump has: a moving impeller forming a blade wheel shape; a suction chamber containing the moving impeller; and connected to the suction chamber The gas-liquid discharge pipe in the tangential direction of the peripheral wall; an inlet opening for attracting the surrounding liquid with respect to the rotating shaft portion of the moving impeller; a gas introduction pipe at the base end opening portion is arranged near the suction opening; and Built-in motor chamber that rotates the motor 592795, patent-pending motor. 54. The micro-bubble generating device having a micro-bubble generator according to item 53 of the scope of patent application, wherein the liquid-medium pump is provided with: a negative pressure portion arranged at the opening end of the suction port and connected to the gas introduction pipe; and one end One side is connected to a predetermined part of the gas-liquid discharge pipe, and the other end side is connected to a manifold of the negative pressure part. 55. The micro-bubble generating device with a micro-bubble generator according to item 50 or 51 of the scope of application for a patent, wherein the moving impeller of the air pump is provided in conjunction with the rotation shaft of the pump or the liquid pump. 56. The micro-bubble generating device with a micro-bubble generator according to item 52 of the patent application scope, wherein the moving impeller of the air pump is provided in conjunction with the pump or the rotating shaft of the liquid pump. 57. The micro-bubble generating device with a micro-bubble generator according to item 53 of the scope of the patent application, wherein the moving impeller of the air pump is provided in conjunction with the pump or the rotating shaft of the liquid pump. 58. The micro-bubble generating device with a micro-bubble generator according to item 54 of the scope of the patent application, wherein the moving impeller of the air pump is provided in conjunction with the rotating shaft of the pump or the liquid pump. 59. The micro-bubble generating device having a micro-bubble generator according to any one of the claims 46 to 51, wherein a plurality of the micro-bubble generators are provided, and the gas-liquid discharge pipe is connected to each of the micro-bubbles. The gas and liquid of the generator are introduced into the hole. 60. For example, the scope of the application for the patent No. 52 of the micro bubble generator 592795 VI. The scope of the patent application for the micro bubble generator, including a plurality of the micro bubble generator, the gas-liquid discharge pipe is connected to each of the micro bubbles The gas and liquid of the generator are introduced into the hole. 6 1 · The micro-bubble generating device with a micro-bubble generator, as described in item 53 of the scope of patent application, including a plurality of the micro-bubble generators, and the gas-liquid discharge pipe is a gas connected to each of the micro-bubble generators. Liquid into the hole. 62. The micro-bubble generating device having a micro-bubble generator, such as the 54th in the scope of the patent application, which includes a plurality of the micro-bubble generators, and the gas-liquid discharge pipe is a gas-liquid introduction connected to each of the micro-bubble generators. Hole. 63. If the micro-bubble generating device with a micro-bubble generator is provided in item 55 of the scope of patent application, the micro-bubble generator is provided in plural, and the gas-liquid discharge pipe is a gas connected to each of the micro-bubble generators. Liquid into the hole. 64. The micro-bubble generating device having a micro-bubble generator according to item 56 of the patent application scope, wherein a plurality of the micro-bubble generators are provided, and the gas-liquid discharge pipe is a gas-liquid introduction connected to each of the micro-bubble generators. Hole. 65. The micro-bubble generating device having a micro-bubble generator according to item 5 of the scope of the patent application, wherein a plurality of the micro-bubble generators are provided, and the gas-liquid discharge pipe is a gas connected to each of the micro-bubble generators. Liquid into the hole. -10- 592795 6. Application for patent scope 6 6. If applying for a patent @ micro-bubble generating device, the gas-liquid introduction of the gas-liquid ejector 3 item 5 8 is equipped with a micro-bubble generator, which has A plurality of the fine bubble generating tubes are connected to each of the fine bubble generating holes. -11-