KR101371367B1 - Apparatus for generating micro bubble and water treatment facility having the same - Google Patents

Abstract

The present invention relates to an ultramicro bubble generator which is capable of purifying contaminated water by generating ultramicro bubbles at normal pressure and by supplying the ultramicro bubbles into the water, and a water treatment facility having the ultramicro bubble generator. The ultramicro bubble generator by the present invention comprises: a case (43) having an inflow space (44) and suction holes (45); an air supply pipe (53) for supplying air into the inflow space (44); a water pump (46) installed inside the case (43) to pump a mixed fluid of water and air made by mixing water and air; and a disperser (57). The disperser (57) has: a spray head (60) which has a discharge outlet connected with a connection passage (56) in the case (43) and which sprays, onto the outside of the case (43), the mixed fluid of water and air flowing along the connection passage (56); a collision plate (63) installed apart from the discharge outlet of the spray head (60) in the front of the discharge outlet; and a spray nozzle which is installed between the spray head (60) and the collision plate (63) and which sprays ultramicro bubbles and water onto the outside of the spray head (60), wherein the ultramicro bubbles are generated as the mixed fluid of water and air collides with the collision plate (63) after being discharged from the discharge outlet.

Description

Apparatus for generating micro bubble and water treatment facility having the same

The present invention relates to a water treatment facility for purifying a variety of sewage water, and more particularly, to a ultra-fine bubble generator and a water treatment facility having the same to generate contaminated water by generating the ultra-micron bubble at normal pressure and supplying it into water. It is about.

Due to the continuous industrialization and urbanization, environmental pollution is getting serious day by day, and the shape of discharged sewage, waste water and sewage (hereinafter referred to as 'waste water') is becoming very diverse, and the facilities for its treatment are advanced and treatment costs are increased. There is a situation. In addition, as water pollutants in the wastewater that have not been completely treated are introduced into rivers, lakes, and other water sources, many problems occur in efficient water quality management.

Current water and wastewater treatment technologies include physicochemical methods such as sedimentation, filtration, chemical flocculation, oxidation, and dissolved air flotat-ion (DAF), and microorganisms in bioreactors containing activated sludge. There is a biological treatment method for maximizing metabolic processes to remove various contaminants. The biological treatment method is mainly used for sewage treatment.

In the physicochemical high water treatment process, there is a dissolved air flotation method that can easily remove water contaminant particles by attaching / injuring the ultra-fine cells generated by pressure changes on the surface of water contaminant particles. Dissolved air flotation is a method of generating microbubbles by reducing the pressure in water with saturated air, and attaching microbubbles to contaminants in water to float and remove water contaminants to the surface.

Dissolved air flotation methods include vacuum flotation, micro-flotation, and pressure flotation. The vacuum flotation method is a method of introducing saturated air with air at atmospheric pressure into a floating tank in a vacuum state to release saturated air as microbubbles. The micro-flotation method injects air into the deepest point of the inflow in the downward direction to partially saturate it under the influence of hydrostatic pressure, and when the inflow rises in the upward direction, the hydrostatic pressure decreases to release some of the saturated air into the microbubbles. . Pressurized flotation is the most widely used dissolved air flotation method, sometimes referred to as dissolved air flotation. In the pressure flotation method, air is saturated in water under pressurized pressure and released into microbubbles upon reduction to atmospheric pressure by an outlet device.

The dissolved air flotation method can be additionally installed and used without making a big change in the existing treatment facility, and it has the advantage of obtaining a stable and high efficiency treatment for removing total phosphorus (TP) as well as water pollutants. However, in the method of generating the ultra-mini-foam used as the driving force on the pressurized portion, in order to use the pressurized dissolved air in the range of 3-7 kgf / cm ² , a high pressure such as a pressurized pump, an air compressor, a pressurized mixing tank, and a high pressure pipe is used. The disadvantage is that facilities are required.

Republic of Korea Patent Publication No. 1080818 (published Aug. 26, 2011), Republic of Korea Patent Publication No. 1128679 (August 26, 2011 published)

The present invention is to solve the problems of the prior art as described above, the object of the present invention is to omit a high-pressure device, such as a pressurized pump, air compressor, high pressure piping used to generate conventional pressurized dissolved air, By generating microbubbles at atmospheric pressure and supplying them to the water, there is provided an ultra-miniature bubble generator and a water treatment facility having the same, which have low operational risk and low initial facility cost and required power cost.

Ultra-mini strength gun generator according to an aspect of the present invention for achieving the above object is provided, the inlet space is provided with the inlet water is introduced therein is connected to the inlet space so that water can be introduced into the inlet space on the outer surface A case having a hole formed therein, an air supply pipe connected to the case to supply air to the inlet space, water and air introduced into the inlet space are mixed to form a water-air mixed fluid and a high speed water-air mixed fluid. A water dispersing device and a connection flow path provided inside the casing to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump, to the water pump installed inside the casing for pumping into Include. The separation apparatus includes an injection head coupled to the case and having a discharge port connected to the connection flow path for injecting a water-air mixed fluid flowing along the connection flow path to the outside of the case, and in front of the discharge port of the injection head. The jetting head and the jetting plate to be spaced apart from the discharge port in order to inject the ultra-fine foam and water generated while impinging the collision plate after the water-air mixed fluid is discharged from the discharge port to the outside of the injection head. It has an injection hole provided between the collision plates.

The ultra-miniature bubble generator according to one aspect of the present invention further includes an air diffuser installed in the inlet space to be connected to the air supply pipe to supply the air supplied through the air supply pipe to the inlet space in the form of micro bubbles. can do.

A bulge having a spherical guide curved surface for guiding the water-air mixed fluid discharged through the discharge hole toward the injection hole may be provided at the center of the impingement plate to protrude toward the discharge hole.

The ultra-mini-foam generating device according to one aspect of the present invention may further include a gap adjusting bolt for coupling the collision plate to the injection head so that the gap with the injection head can be adjusted.

According to another aspect of the present invention, an ultra-miniature gun generator according to another aspect of the present invention provides an inlet space into which water is introduced and is connected to the inlet space so that water is introduced into the inlet space on an outer surface thereof. A case having a hole formed therein, an air supply pipe connected to the case to supply air to the inlet space, water and air introduced into the inlet space are mixed to form a water-air mixed fluid and a high speed water-air mixed fluid. A water dispersing device and a connection flow path provided inside the casing to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump, to the water pump installed inside the casing for pumping into Include. The dispersing apparatus includes an injection tube coupled to the case and having an injection passage connected to the connection passage to inject the water-air mixed fluid flowing along the connection passage to the outside of the case, and at the end of the injection tube. A diffusion tube provided in a form of gradually increasing width in a direction away from the injection tube, the end of which is open in a direction parallel to the injection passage, and a plurality of inner collision vanes spaced apart from an inner surface of the injection tube; A nut member coupled to the plurality of inner collision vanes and disposed in the middle of the injection passage, a screw shaft screwed to the nut member, and coupled to an end of the screw shaft to be spaced apart from the diffusion tube in front of the diffusion tube. The dispersing plate disposed and the water-air mixed fluid flowing along the injection passage collide with the plurality of inner collision vanes. For injecting the micro-sex intensity Po and water as the external diffusion tube has an ejection port that is provided between the diffuser tube of the diffusion tube circumference and the jet plate.

The dispersion apparatus includes a guide cover covering the diffusion pipe and the dispersion plate and having an outlet opening at a distal end thereof in a direction parallel to the injection passage, and the guide to collide with the ultra-fine foam sprayed through the injection hole. It may further include a plurality of outer impact vanes spaced apart from the outlet of the cover.

A water treatment facility according to an aspect of the present invention for achieving the above object is, by treating the contaminants such as organic matter, nitrogen, phosphorus, etc. in the waste water biologically and the condensate in the waste water passing through the reaction tank by treatment A flocculation tank for cleaning, a flotation tank having an ultra-miniature bubble generator installed therein for treating the wastewater that has passed through the flocculation tank with a dissolved air flotation method, and a flotation tank installed in the flotation tank to remove scum generated in the flotation tank. And a sludge storage tank for collecting and treating sludge produced in the reaction tank, the flocculation tank, and the flotation tank. The ultra-mini strength gun generator is provided with an inlet space in which water is introduced therein, a case having a suction hole connected to the inlet space so that water can be introduced into the inlet space on the outer surface, and air to the inlet space. An air supply pipe connected to the case for supply, and a water pump installed inside the case for mixing the water and the air introduced into the inlet space to form a water-air mixed fluid and pumping the water-air mixed fluid at high speed. And a connection channel provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump. The dispersing apparatus includes an injection head coupled to the case and having a discharge port connected to the connection channel for injecting a water-air mixed fluid flowing along the connection channel to the outside of the case, and in front of the injection hole of the injection head. The jetting head and the jetting head to be spaced apart from the jetting port, and to inject the ultra-miniature foam and water generated while colliding with the impingement plate after the water-air mixed fluid is discharged from the discharge port, to the outside of the jetting head and the It has an injection hole provided between the collision plates.

Water treatment facilities according to another aspect of the present invention for achieving the above object, the condensation of the contaminants in the waste water passing through the reaction tank and the reaction tank for biological treatment of contaminants such as organic matter, nitrogen, phosphorus in the waste water is treated A flocculation tank for cleaning, a flotation tank having an ultra-miniature bubble generator installed therein for treating the wastewater passing through the flocculation tank by the dissolved air flotation method, and a flotation tank installed in the flotation tank to remove scum generated in the flotation tank. And a sludge storage tank for collecting and treating sludge produced in the reaction tank, the flocculation tank, and the flotation tank. The ultra-mini strength gun generator is provided with an inlet space in which water is introduced therein, a case having a suction hole connected to the inlet space so that water can be introduced into the inlet space on the outer surface, and air to the inlet space. An air supply pipe connected to the case for supply, and a water pump installed inside the case for mixing the water and the air introduced into the inlet space to form a water-air mixed fluid and pumping the water-air mixed fluid at high speed. And a connection channel provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump. The dispersing apparatus includes an injection tube coupled to the case and having an injection passage connected to the connection passage to inject the water-air mixed fluid flowing along the connection passage to the outside of the case, and at the end of the injection tube. A diffusion tube provided in a form of gradually increasing width in a direction away from the injection tube, the end of which is open in a direction parallel to the injection passage, and a plurality of inner collision vanes spaced apart from an inner surface of the injection tube; A nut member coupled to the plurality of inner collision vanes and disposed in the middle of the injection passage, a screw shaft screwed to the nut member, and coupled to an end of the screw shaft to be spaced apart from the diffusion tube in front of the diffusion tube. The dispersing plate disposed and the water-air mixed fluid flowing along the injection passage collide with the plurality of inner collision vanes. For injecting the micro-sex intensity Po and water as the external diffusion tube has an ejection port that is provided between the diffuser tube of the diffusion tube circumference and the jet plate.

The ultra-mini strength gun generator according to the present invention has a simple and compact structure in which a water pump and a dispersion device are installed in one case, and are easy to install in water. And, compared to the conventional dissolved air generator, it can generate ultra-fine air bubbles at atmospheric pressure and supply them to the water without high pressure devices such as pressurized pumps, air compressors, and high-pressure pipes, resulting in low risk of operation, low initial facility cost, and low power cost. Even novice users without specialized knowledge can be easily installed and used without great difficulty.

In addition, the ultra-mini-foam generation device according to the present invention by supplying air to the inlet space of the inside of the case in the form of fine bubbles by using an air diffuser, it is possible to mix the air more uniformly and efficiently in the water. In addition, it is possible to increase the amount of ultra-micro bubbles generated from the water-air mixture fluid, and to further reduce the size of the micro-bubbles generated, thereby increasing the removal efficiency of water pollutants in the wastewater by the dissolved air flotation method. have.

In addition, the ultra-mini-foam generator according to the present invention is generated by changing the flow rate of the air flowing into the inlet space inside the case through the air supply pipe, the impeller rotation speed of the water pump, the injection port height of the dispersion device, etc. You can control the size and distribution form of.

1 is a configuration diagram schematically showing a water treatment facility according to an embodiment of the present invention.
Figure 2 shows the ultra-miniature foam generating device of the water treatment plant according to an embodiment of the present invention by cutting the housing.
FIG. 3 is a side cross-sectional view illustrating a dispersion device of the ultra-miniature cloth generator shown in FIG. 2.
Figure 4 is a side cross-sectional view showing another embodiment of the dispersing apparatus provided in the ultra-miniature cloth generator according to the present invention.
FIG. 5 is a plan view of the dispersion apparatus shown in FIG. 4. FIG.
FIG. 6 is a cross-sectional view taken along line II of FIG. 4.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the ultra-miniature gun generator and the water treatment equipment having the same.

In describing the present invention, the sizes and shapes of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of explanation. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms are to be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the contents throughout the present specification.

Figure 1 is a schematic view showing a water treatment plant according to an embodiment of the present invention, Figure 2 is a cutting device showing the ultra-miniature bubble generator of the water treatment plant according to an embodiment of the present invention.

As shown in FIG. 1, the water treatment facility 10 according to an embodiment of the present invention includes a reaction tank 12 and a reaction tank 12 for biologically treating contaminants such as organic matter, nitrogen, and phosphorus in sewage water. A coagulation tank 20 for coagulating and treating contaminants in the wastewater passed therethrough, and an ultra-fine bubble generator 40 is installed therein for treating the wastewater passing through the coagulation tank 20 by the dissolved air flotation method. The aeration tank 26, the aeration tank 76 for aerobic treatment of contaminants in the wastewater passing through the flotation tank 26, and the reaction tank 12, the flocculation tank 20 and the flotation tank 26 A sludge storage tank 78 for collecting and treating sludge is included. Here, the ultra-micro-foam generator 40 can generate the ultra-mini-foam at normal pressure without supplying a high-pressure device such as a pressurized pump, air compressor, high-pressure pipe compared to the apparatus for generating the pressurized dissolved air of the prior art can be supplied into the water. .

Reactor 12 is for biologically treating organic matter, nitrogen, phosphorus, etc. in sewage water, and wastewater such as suspended solids (SS) or organic matter through the action of microorganisms such as bacteria and protozoa whose nutrients are organic matter in sewage water. The contaminants in the water are removed and replaced with sludge which is easy to settle. The reactor 12 is provided with a stirring device 14 for stirring the wastewater. The sludge precipitated in the reaction tank 12 is transferred to the sludge storage tank 78 through the transfer pipe 16, and the wastewater passed through the reaction tank 12 flows to the coagulation tank 20. In order to control sludge discharge from the reactor 12, a valve 18 is installed in the transfer pipe 16 connected to the reactor 12.

The coagulation tank 20 is for coagulating and treating contaminants in the sewage water, and the coagulation tank 20 may be supplied with a coagulant and a neutralizing agent. The flocculant is for flocculating the phosphorus contained in the wastewater, and the neutralizing agent is for controlling the pH concentration of the wastewater. In the coagulation tank 20, a stirring device 14 for agitating the wastewater is installed, and the precipitate precipitated in the coagulation tank 20 is discharged to the sludge storage tank 78 through the transfer pipe 22. In order to control sludge discharge from the coagulation tank 20, a valve 18 is installed in the transfer pipe 22 connected to the coagulation tank 20.

The wastewater passing through the flocculation tank 20 is transferred to the flotation tank 26 through the transfer pipe 24, and is treated by the dissolved air flotation method in the flotation tank 26. The transfer pipe 24 for moving the wastewater between the coagulation tank 20 and the floating tank 26 is provided with a valve 18 for controlling the flow of the wastewater. In the floating tank 26, the ultra-micro-foaming generation zone 28 partitioned by the partition 27 is provided, and the ultra-mini-foaming generation device 40 is installed in the ultra-mini-foaming generation zone 28. The wastewater that has passed through the coagulation tank 20 is introduced into the ultra-microporous bubble generating zone 28, and the contaminant particles in the wastewater in the ultra-fine bubble-producing zone 28 are generated by the ultra-fine bubble-producing device 40. In combination to rise to the surface.

The scum remover 30 is installed in the flotation tank 26 to remove the contaminated particles floating in combination with the ultra-fine cloth gun in the flotation tank 26. The scum remover 30 has a structure that discharges the contaminants floating on the water surface to the scum collection chamber 34 while the blade 32 coupled to the crawler belt 31 continuously moves. Of course, the specific structure of the scum remover 30 is not limited to that shown, and may be changed to various other structures capable of removing contaminants floating on the water surface. The contaminants introduced into the scum collection chamber 34 and the sludge settled in the flotation tank 26 are discharged to the sludge storage tank 78 through the transfer pipe 36. The valve 18 is installed in the transfer pipe 38 connected to the flotation tank 26 to control the sludge discharge from the flotation tank 26. The wastewater passing through the floating tank 26 is introduced into the aeration tank 76 through the transfer pipe 39. The aeration tank 76 is for aerobic treatment of contaminants in the sewage water, and the aeration tank 76 may be provided with an air diffuser for supplying air into the waste water as in a conventional aeration tank.

As shown in FIGS. 1 and 2, the ultra-miniature gun generator 40 includes an outer housing 41 having an opening 42, an inlet space 44 accommodated inside the outer housing 41, and an inside thereof. ), A water pump 46 embedded in the case 43, and an air supply pipe 53 connected to the case 43 to supply air to the inflow space 44 of the case 43. And a dispersing device 57 coupled to the case 43 for injecting the air contained in the water flowing at high speed by the water pump 46 to the outside of the case 43 in the form of ultra-miniature foam. The ultra-mini-foam generator 40 is installed in the water in a state in which the water pump 46 and the dispersing device 57 are coupled to one case 43. The water pump 46 operates by receiving power from the power supply 52 installed on the ground through the power supply line 51, and the air supply pipe 53 is connected to the air pump 54 installed on the ground.

The case 43 is provided with an inflow space 44 through which water and air are introduced therein, and is connected to an inflow space 44 on the outer surface of the case 43 so that water can flow into the inflow space 44. A plurality of suction holes 45 are formed. The water pump 46 is built in the case 43. The water pump 46 includes a motor 47 and an impeller 48 that is rotated by the motor 47. The water pump 46 is connected to the inlet guide member 49 installed below the impeller 48 in the inlet space 44. When the impeller 48 rotates at a high speed, the inlet port 50 of the inlet guide member 49 is provided. Water is sucked through).

In the lower part of the inflow guide member 49, an air diffuser 55 is connected to the air supply pipe 53 to supply air into the inflow space 44. When the air pump 54 is operated, outside air is supplied to the air diffuser 55 through the air supply pipe 53, and the air pump 54 is supplied to the inlet space 44 in the form of fine bubbles from the air diffuser 55. Therefore, when the impeller 48 of the water pump 46 rotates at a high speed, the air supplied into the water through the air diffuser 55 is violently hit with water by the impeller 48 and is split into finer bubbles. A water-air mixture fluid with mixed water is produced. In addition, the water-air mixed fluid flows toward the dispersing device 57 at high speed through the connection flow path 56 provided in the case 43 by the pumping action of the water pump 46.

The air diffuser 55 for supplying air to the inlet space 44 may be omitted. In this case, the end of the air supply pipe 53 is located inside the inlet space 44, and the open end of the air supply pipe 53 is opened. Air may be introduced into the inlet space (44) through. However, when the air supplied through the air supply pipe 53 is supplied to the inlet space 44 in the form of microbubbles using the air diffuser 55, the air is more uniformly and efficiently by the rotation of the impeller 48. It is possible to mix, increase the amount of ultra-micro bubbles produced from the water-air mixture fluid, there is an effect that can make the size of the ultra-micro bubbles more fine.

The impeller 48 provided in the water pump 46 is preferably a cutter type that can finely grind the contaminants that may be present in the water. The water pump 46 may include an RPM inverter for adjusting the rotational force of the motor 47, and by changing the rotational force of the impeller 48 through the RPM inverter, the intake amount of air, the intake amount of water, the water-air mixed fluid The amount of the feed, the size of the ultra-fine force gun sprayed through the dispersion device 57 can be adjusted.

In general liquid pumps, the inflow of air causes cavitation inside the pump to lose the suction power of the liquid. However, since the water pump 46 provided in the ultra-mini-foam generating device 40 according to the present invention is submerged in water and placed in a positive pressure (+ pressure) atmosphere, and does not have a suction head, even for a certain amount of air flow, the general liquid It is less affected by cavitation than pump.

The water-air mixed fluid, which is produced while the air is mixed in the water by the high speed rotation of the impeller 48, is supplied to the dispersing device 57 through the connection channel 56 provided in the case 43. As shown in FIGS. 2 and 3, the dispersing device 57 is coupled to the case 43 for injecting the water-air mixed fluid flowing along the connection passage 56 to the outside of the case 43. The dispersing device 57 includes an injection pipe 58 having an injection flow path 59 connected to a connection flow path 56 inside the case 43, an injection head 60 coupled to an end of the injection pipe 58. And an impingement plate 63 coupled to the injection head 60. The injection head 60 is disposed outside the outer housing 41 and has a discharge port 61 connected to the injection passage 59.

The water-air mixed fluid flowing along the injection passage 59 is discharged through the discharge port 61 of the injection head 60, and the water-air mixed fluid discharged at high speed through the discharge port 61 is the discharge port 61. After hitting the impingement plate 63 disposed in front of the injection head 60 is injected into the wastewater through the injection port 62 provided between the injection head 60 and the impingement plate 63 around the injection head (60). A ridge raised up toward the discharge port 61 in the center of the collision plate 63 so that the water-air mixed fluid that strikes the collision plate 63 can smoothly flow toward the injection hole 62 around the injection head 60. 64). The ridge 64 has a spherical guide curved surface 65, and the water-air mixed fluid discharged at a high speed from the discharge port 61 has a circumference of the spray head 60 along the guide curved surface 65. It spreads evenly toward you.

When the water-air mixed fluid discharged at high speed through the discharge port 61 strikes the impingement plate 63, the microbubbles contained in the water-air mixed fluid become more finely in various sizes from millimeter to nanometer. The split, so split ultra-miniature gun is introduced into the sewage water in the flotation tank 26 through the injection port 62. In addition, the ultra-micron cloth injected into the sewage water is attached to the water contaminants in the sewage water to float the water contaminants to the surface, and the injured water contaminants are removed to the scum collection room 34 by the scum remover 30.

The size or dispersion of the ultra-mini-foam gun generated from the ultra-mini-foam generator 40 according to the present invention is the flow rate of the air flowing into the inlet space 44 through the air supply pipe 53, the impeller of the water pump 46 (48) It can be adjusted according to the rotational speed, the height of the injection port 62. The height of the injection port 62 can be adjusted by moving the impingement plate 63 to change the distance between the injection head 60 and the impingement plate 63. To this end, the impingement plate 63 is coupled to the injection head 60 by means of a spacing bolt 67. The space adjusting bolt 67 is provided with a screw shaft 68 screwed into the screw hole 66 formed in the collision plate 63 and a head provided at one end protruding from the collision plate 63 of the screw shaft 68. 69 and a shaft connecting member 70 provided at the other end of the screw shaft 68.

The shaft connecting member 70 is rotatably coupled to the injection head 60, the small diameter portion 71 connected to the other end of the screw shaft 68, and the large diameter portion coupled to the end of the small diameter portion 71. 72). The small diameter portion 71 is rotatably inserted into the connection hole 73 formed in the injection head 60, and the large diameter portion 72 is provided in the accommodation chamber 74 provided in the injection head 60 so as to be connected to the connection hole 73. Is rotatably accommodated. The width of the large diameter portion 72 is larger than the width of the connecting hole 73 so that the large diameter portion 72 cannot escape from the storage chamber 74 through the connecting hole 73. The end of the head 69 may be provided with a tool groove into which a tool for user manipulation may be fitted, or an uneven portion may be provided at an outer circumference of the head 69 to increase frictional force.

When the user rotates the head 69, the screw shaft 68 and the shaft connecting member 70 is rotated, the shaft connecting member 70 is idle in the state coupled to the injection head 60, the screw shaft 68 Is rotated in a screwed state with the impingement plate (63). In this case, the height of the injection hole 62 may vary as the collision plate 63 approaches the injection head 60 or moves away from the injection head 60 by the screw motion between the collision plate 63 and the screw shaft 68. Can be adjusted.

Although the impingement plate 63 is shown as coupled to the injection head 60 by a pair of spacing bolts 67 in the drawing, the number of installation of the spacing bolts 67 may be variously changed. And the specific structure of the collision plate 63, the specific structure of the space adjusting bolt 67, the coupling structure of the space adjusting bolt 67 and the injection head 60, the space adjusting bolt 67 and the collision plate 63 The bonding structure can be changed to various other structures.

As described above, the ultra-miniature gun generator 40 according to the present invention has a simple and compact structure in which the water pump 46 and the dispersing device 57 are installed in one case 43, and are installed in water. Easy to do And, compared to the conventional dissolved air generator, it can generate ultra-fine air bubbles at atmospheric pressure and supply them to the water without high pressure devices such as pressurized pumps, air compressors, and high-pressure pipes, resulting in low risk of operation, low initial facility cost, and low power cost. Even novice users without specialized knowledge can be easily installed and used without great difficulty.

In addition, the ultra-fine strength bubble generator 40 according to the present invention by supplying the air to the inlet space 44 inside the case 43 in the form of fine bubbles by using the diffuser device 55, the air is more uniform in water It can be mixed efficiently. In addition, it is possible to increase the amount of ultra-micro bubbles generated from the water-air mixture fluid, and to further reduce the size of the micro-bubbles generated, thereby increasing the removal efficiency of water pollutants in the wastewater by the dissolved air flotation method. have.

In addition, the ultra-miniature gun generator 40 according to the present invention is the flow rate of air flowing into the inlet space 44 inside the case 43 through the air supply pipe 53, or the impeller 48 of the water pump 46 By varying the rotational speed, the height of the injection port 62 of the dispersing device 57, and the like, it is possible to variously adjust the size and dispersion form of the ultra-mini strength cloth generated.

On the other hand, Figure 4 is a side cross-sectional view showing another embodiment of the dispersing apparatus provided in the ultra-miniature cloth generator according to the present invention, Figure 5 is a plan view showing the dispersing apparatus shown in Figure 4, Figure 6 is a I It is sectional drawing taken along line I.

4 to 6, the dispersing apparatus 80 illustrated in FIGS. 4 to 6 has an injection passage 59 connected to the connection passage 56 of the case 43, and is coupled to the case 43, and an injection tube 58. The injection passage 81 coupled to the diffusion tube 81 coupled to the 58, the plurality of inner collision vanes 83 spaced apart from the inner surface of the injection tube 58, and the plurality of inner collision vanes 83. A nut member 84 disposed in the middle, a screw shaft 86 screwed to the nut member 84, and a dispersion plate 87 coupled to the end of the screw shaft 86 so as to face the diffuser tube 81. And a guide cover 91 covering the diffusion tube 81 and the dispersion plate 87, and a plurality of outer collision vanes 94 coupled to the guide cover 91. The diffusion tube 81 is provided at the end of the injection tube 58 in a form in which the width gradually increases in a direction away from the injection tube 58. The end of the diffusion tube 81 is opened in a direction parallel to the injection passage (59).

The plurality of inner collision vanes 83 are spaced apart from each other at regular angular intervals on the inner surface of the injection pipe 58 and are disposed in a radial shape in the injection flow path 59. The water-air mixed fluid flowing at high speed along the injection passage 59 strikes a plurality of inner collision vanes 83, and the air contained therein is split into ultra-fine bubbles and the ultra-fine bubbles are diffused together with water. And is discharged to the outside of the diffusion tube 81 through a gap provided between the dispersion plate 87.

4 and 6, the nut member 84 is coupled to the middle of the plurality of inner collision vanes 83, and the nut member 84 is supported by the plurality of inner collision vanes 83 and sprayed. It is arranged in the middle of the flow path 59. The screw hole 85 is provided in the center of the nut member 84, and the screw shaft 86 is screwed to this screw hole 85. As shown in FIG. Dispersion plate 87 is coupled to the end of the screw shaft 86, the distribution plate 87 is disposed to face the diffusion tube 81 in front of the diffusion tube (81).

The dispersion plate 87 is spaced apart from the diffusion tube 81 in front of the diffusion tube 81, and the first guide curved surface 82 inside the diffusion tube 81 and the second guide curved surface outside the dispersion plate 87 ( Between the 88 is formed a jet stream forming wood (89) through which the water-air mixed fluid flows, and connected to the jet stream forming tree (89) around the edge of the dispersion plate 87 and the edge of the diffusion tube 81 The injection hole 90 is provided. The jet stream forming tree 89 has a shape in which the height thereof gradually decreases toward the injection hole 90. When the water-air mixed fluid that flows along the injection passage 59 and collides with the plurality of inner collision vanes 83 passes through the jet stream forming tree 89, the jet stream forming tree 89 generates turbulence and jet streams. Is formed, and the air contained in the water-air mixture fluid in this flow is once again split into an ultra-fine foam and injected through the injection hole (90).

And the ultra-fine force gun sprayed through the injection hole 90 is introduced into the wastewater in the floating tank 26 through the discharge port 92 provided in the guide cover 91. A guide inclined surface 93 inclined toward the outlet 92 is provided on the inner circumferential surface of the guide cover 91 so that the ultra-fine cloth and water injected through the injection hole 90 are directed toward the outlet 92 along the guide inclined surface 93. It can flow smoothly. As such, when the guide cover 91 is used, the ultra-fine strength cannon injected into the sewage water is induced by injecting the ultra-low intensity gun radially spreading around the edge of the dispersion plate 87 in the longitudinal direction of the injection tube 58. The flow can be made more turbulent, thereby increasing the adhesion efficiency between the micro-foams and the water contaminants in the sewage and the flotation efficiency of the water contaminants.

4 and 5, a plurality of outer impact vanes 94 are radially disposed at an angular interval in the outlet 92 and are contained in the water-air mixed fluid discharged through the outlet 92. The air hits a plurality of outer impact vanes 94 once again, splits into ultra-miniature guns, and is introduced into the sewage water in the floating tank 26. Therefore, when the plurality of outer collision vanes 94 are provided, the size of the ultra-micro-foamed cloth contained in the water can be further refined, and the dispersion efficiency of the ultra-mini-foamed cloth can be improved. One end of each of the plurality of outer impact vanes 94 is coupled to an inner surface of the guide cover 91, and the other end of each of the plurality of outer impact vanes 94 is disposed at the center of the guide cover 91. ) Is combined. A through hole 96 is provided inside the vane support member 95.

The size or dispersion shape of the ultra-mini strength gun generated while passing through the dispersing device 80 may be adjusted by changing the height of the injection hole 90, that is, changing the gap between the diffusion tube 81 and the dispersion plate 87. Since the screw shaft 86 to which the distribution plate 87 is coupled is screwed to the nut member 84 located inside the injection tube 58, when the screw shaft 86 is rotated, the distribution plate 87 is rotated. It is possible to move in parallel with the direction of forming the opening portion 58, so that the gap between the diffusion tube 81 and the dispersion plate 87 can be adjusted.

To this end, the operation protrusion 97 protrudes from the outer surface of the dispersion plate 87. The manipulation protrusion 97 is exposed to the outside through the through hole 96 of the vane support member 95. When the user rotates the operation protrusion 97 using a tool or the like, the dispersion plate 87 moves by the screw motion between the screw shaft 86 and the nut member 84 to become close to the diffusion tube 81 or to the diffusion tube ( 81) away. The height of the jet stream forming tree 89 and the injection port 90 decreases as the dispersion plate 87 approaches the diffusion tube 81, and the jet stream formation when the distribution plate 87 moves away from the diffusion tube 81 The height of the neck 89 and the nozzle 90 is increased.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can improve and modify the technical idea of the present invention in various forms. Accordingly, these modifications and variations are intended to fall within the scope of the present invention as long as it is obvious to those skilled in the art.

10: water treatment plant 12: reactor
14: stirring device 18: valve
20: flocculation tank 26: flotation tank
27: bulkhead 28: ultra-mini century artillery zone
30: scum eliminator 31: belt
32: Blade 34: Scum collection room
40: ultra-miniature gun generator 41: outer housing
43: case 44: inlet space
45: suction hole 46: water pump
47: motor 48: impeller
49: inflow guide member 50: inlet
51: power supply line 52: power supply
53: air supply pipe 54: air pump
55: diffuser 56: connection euro
57, 80: dispersion device 58: injection pipe
59: injection flow path 60: injection head
61 discharge port 62, 90 injection port
63: collision plate 64: ridge
65: guide surface 67: spacing bolt
68, 86: screw shaft 69: head
70: shaft connecting member 71: small diameter portion
72: large diameter 76: aeration tank
78: sludge storage tank 81: diffusion pipe
82, 88: 1st, 2nd guide surface 83: inner collision vane
84: nut member 87: dispersion plate
89: jet stream forming tree 91: guide cover
92: outlet 93: guide slope
94: outer impact vane 95: vane support member
97: operation projection

Claims (8)

A case having an inflow space into which water is introduced, and a suction hole connected to the inflow space to allow water to flow into the inflow space on an outer surface thereof;
An air supply pipe connected to the case to supply air to the inlet space;
A water pump installed inside the case to make a water-air mixed fluid by mixing water and air introduced into the inlet space and to pump the water-air mixed fluid at high speed;
A connection flow passage provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump; And
An injection head coupled to the case and having a discharge port connected to the connection channel for injecting a water-air mixed fluid flowing along the connection channel to the outside of the case, and spaced apart from the discharge port in front of the discharge port of the injection head A collision plate installed so as to be provided between the injection head and the collision plate to inject water and air mixed with the ultra-fine force generated while colliding with the collision plate after the water-air mixed fluid is discharged from the discharge port to the outside of the injection head. Ultrasonic cannon generator comprising a; dispersing device having a spray hole.
The method of claim 1,
And an air diffuser installed in the inlet space so as to be connected to the air supply pipe in order to supply air supplied through the air supply pipe to the inlet space in the form of micro bubbles.
The method of claim 1,
Ultra-high strength foam generation, characterized in that the bulge provided with a spherical guide curved surface for guiding the water-air mixed fluid discharged through the discharge port toward the injection hole in the center of the impingement plate protrudes toward the discharge hole Device.
The method of claim 1,
And a spacing adjustment bolt coupled to the impingement head to allow the impingement plate to be controlled from the jet head.
A case having an inflow space into which water is introduced, and a suction hole connected to the inflow space to allow water to flow into the inflow space on an outer surface thereof;
An air supply pipe connected to the case to supply air to the inlet space;
A water pump installed inside the case to make a water-air mixed fluid by mixing water and air introduced into the inlet space and to pump the water-air mixed fluid at high speed;
A connection flow passage provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump; And
An injection tube coupled to the case with an injection passage connected to the connection passage for injecting the water-air mixed fluid flowing along the connection passage to the outside of the case, and separated from the injection tube at the end of the injection tube; A diffusion tube provided in a form of gradually increasing width in a direction, the end of which is open in a direction parallel to the injection passage, a plurality of inner collision vanes coupled to an inner surface of the injection tube, and the plurality of inner collisions A nut member coupled to the vane and disposed in the middle of the injection passage, a screw shaft screwed to the nut member, a dispersion plate coupled to an end of the screw shaft and spaced apart from the diffusion tube in front of the diffusion tube; And ultra-fine strength generated while the water-air mixed fluid flowing along the injection passage collides with the plurality of inner collision vanes. And a dispersing device having an injection hole provided between the diffusion pipe and the dispersion plate around the diffusion pipe to inject the cloth and water to the outside of the diffusion pipe.
The method of claim 5, wherein
The dispersion apparatus includes a guide cover covering the diffusion pipe and the dispersion plate and having an outlet opening at a distal end thereof in a direction parallel to the injection passage, and the guide to collide with the ultra-fine foam sprayed through the injection hole. And a plurality of outer impact vanes spaced apart from the outlet of the cover.
Reactor for biological treatment of pollutants such as organic matter, nitrogen, phosphorus in sewage water;
An agglomeration tank for agglomerated and treating contaminants in the wastewater passing through the reaction tank;
A flotation tank having an ultra-miniature bubble generator installed therein for treating the wastewater that has passed through the flocculation tank by the dissolved air flotation method;
A scum remover installed in the floating tank to remove the scum generated in the floating tank; And
And a sludge storage tank for collecting and treating sludge produced in the reaction tank, the flocculation tank, and the flotation tank.
The ultra-mini strength gun generator,
A case having an inflow space through which water is introduced, and a suction hole connected to the inflow space to allow water to flow into the inflow space on an outer surface thereof;
An air supply pipe connected to the case to supply air to the inflow space;
A water pump installed inside the case to make a water-air mixed fluid by mixing water and air introduced into the inlet space, and to pump the water-air mixed fluid at high speed;
A connection flow passage provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump;
An injection head coupled to the case and having a discharge port connected to the connection channel for injecting a water-air mixed fluid flowing along the connection channel to the outside of the case, and spaced apart from the injection port in front of the injection port of the injection head A collision plate installed so as to be provided between the injection head and the collision plate to inject water and air mixed with the ultra-fine force generated while colliding with the collision plate after the water-air mixed fluid is discharged from the discharge port to the outside of the injection head. Water treatment equipment comprising a dispersion device having a nozzle that is.
Reactor for biological treatment of pollutants such as organic matter, nitrogen, phosphorus in sewage water;
An agglomeration tank for agglomerated and treating contaminants in the wastewater passing through the reaction tank;
A flotation tank having an ultra-miniature bubble generator installed therein for treating the wastewater that has passed through the flocculation tank by the dissolved air flotation method;
A scum remover installed in the floating tank to remove the scum generated in the floating tank; And
And a sludge storage tank for collecting and treating sludge produced in the reaction tank, the flocculation tank, and the flotation tank.
The ultra-mini strength gun generator,
A case having an inflow space through which water is introduced, and a suction hole connected to the inflow space to allow water to flow into the inflow space on an outer surface thereof;
An air supply pipe connected to the case to supply air to the inflow space;
A water pump installed inside the case to make a water-air mixed fluid by mixing water and air introduced into the inlet space, and to pump the water-air mixed fluid at high speed;
A connection flow passage provided inside the case to be connected to the water pump to guide the water-air mixed fluid pumped at a high speed from the water pump;
An injection tube coupled to the case with an injection passage connected to the connection passage for injecting the water-air mixed fluid flowing along the connection passage to the outside of the case, and separated from the injection tube at the end of the injection tube; A diffusion tube provided in a form of gradually increasing width in a direction, the end of which is open in a direction parallel to the injection passage, a plurality of inner collision vanes coupled to an inner surface of the injection tube, and the plurality of inner collisions A nut member coupled to the vane and disposed in the middle of the injection passage, a screw shaft screwed to the nut member, a dispersion plate coupled to an end of the screw shaft and spaced apart from the diffusion tube in front of the diffusion tube; And ultra-fine strength generated while the water-air mixed fluid flowing along the injection passage collides with the plurality of inner collision vanes. And a dispersing device having an injection hole provided between the diffusion pipe and the dispersion plate around the diffusion pipe so as to spray the cloth and water to the outside of the diffusion pipe.

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