KR101985779B1 - Hydroponic system having micro bubble generator - Google Patents

Abstract

The present invention relates to a hydroponic cultivation system equipped with a microbubble generator, wherein the hydroponic cultivation system having a microbubble generator is provided with a microbubble generator for generating microbubbles by receiving a constant water; And a hydroponic cultivation apparatus for cultivating a plant by supplying microbubbles generated in the microbubble generator, wherein the microbubble generator is a water bubble generator which is supplied with water and which contains bubbles of air bubbles, A bubble generating tube for discharging the bubble; A bubble grinding tank for receiving water containing bubbles of air bubbles discharged from the bubble generating tube and finely crushing air bubbles to discharge water containing fine air bubbles; And a bubble grinding nozzle for finely pulverizing the fine air bubbles pulverized in the bubble grinding tank to discharge water containing the abundant micro bubbles.

Description

[0001] Hydroponic system having micro bubble generator [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydroponic cultivation system having a micro bubble generator, and more particularly, to a hydroponic cultivation system in which a micro bubble generated in a micro bubble generator is supplied to a hydroponic cultivation apparatus of a hydroponic cultivation apparatus, There is provided a hydroponic cultivation system comprising a microbubble generator capable of decomposing eutrophication substances, activating microorganisms, and imparting sterilization performance.

Hydroponic cultivation is a method of growing plants using water using artificial ponds or vessels that can support plants without using soil.

The advantage of hydroponics is the ability to directly observe the condition and growth of roots, produce uncontaminated clean vegetables and plants continuously, and mass-produce commercially. Multipurpose indoor hydroponic cultivation equipment can be cultivated easily by anyone in the house, and it also plays a role of cultivating emotions and utilizing it as a living gardening.

Plants that can be hydroponically cultivated include hydroponics such as cucumber, tomato, pepper, paprika, strawberry, lettuce, lettuce, lettuce, kale, Chrysanthemums, roses, gerberas, lilies, begonia, anthurium, etc. Flowers, ginseng, and some medicinal plants can be hydroponically grown.

Korean Patent Registration No. 10-1357111 (Patent Document 1) discloses a hydroponic cultivation tank in which an open-top hydroponic cultivation space is formed inside; A culture liquid circulation tube including a main tube installed in the form of a closed tube along an inner bottom surface of the hydroponic culture tank to receive and circulate the culture liquid transferred from the outside and a plurality of branch tubes extending upward from a plurality of points of the main tube; An overflow pipe having one end connected to the main pipe and an overflow portion formed at a position lower than an upper end of the regeneration port; A culture liquid supply means for supplying a culture liquid to the main tube; A regeneration port provided at the upper end of the branch pipe so as to communicate with the branch pipe; And a heat insulating block for filling a hydroponic cultivation space of the hydroponic cultivation tank in a state of enclosing an outer surface of the cultivation port, wherein the culture circulation pipe comprises a plurality of inverted T-shaped pipes forming part of the main pipe and the branch pipe; Wherein the tubular tube includes a hose clamping clip, the hose clamping clip having a length of the connecting hose, a length of the connecting tube, The hose fastening clip binds the belt strap connecting hose to the inverted T-shaped pipe in a watertight state, and the hose fastening clip is installed in the overflow pipe and is connected to the main pipe of the culture circulation pipe And a culture liquid drainage pump for discharging the culture liquid contained in at least one of the branch pipes to the outside, wherein the culture liquid supply condition is adjustable.

The hydroponic culture apparatus of Patent Document 1 can adjust the staying time of the culture solution to each cultivation port so that the supply amount of the culture solution supplied to one kind of plant in consideration of the degree of plant growth or the temperature and humidity, But it also requires a technical structure to improve the growth of cultivated plants.

: Korean Registered Patent No. 10-1357111

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a microbubble generator capable of hydroponically cultivating an abundant microbubble generated in a microbubble generator, System.

According to an aspect of the present invention, there is provided a hydroponic cultivation system including a micro bubble generator according to an embodiment of the present invention, including: a micro bubble generator for generating micro bubbles by receiving a constant water; And

And a hydroponic cultivation apparatus including a hydroponic cultivation tank in which microbubbles generated in the microbubble generator are supplied to grow plants,

The micro bubble generator comprises:

A bubble generating tube which receives a constant and discharges water containing bubbles of air bubbles;

A bubble grinding tank for receiving water containing bubbles of air bubbles discharged from the bubble generating tube and finely crushing air bubbles to discharge water containing fine air bubbles; And

And a bubble grinding nozzle for finely pulverizing the fine air bubbles pulverized in the bubble grinding tank to discharge water containing the abundant micro bubbles.

In the present invention, the hydroponic cultivation apparatus comprises:

An LED light source for irradiating artificial light to the plant cultivated in the hydroponic cultivation tank, a temperature sensor for detecting the temperature of the hydroponic cultivation tank, and a humidity sensor for detecting the humidity of the hydroponic cultivation tank.

Here, the hydroponic cultivation apparatus may further include a solar cell panel for obtaining a power source for driving at least one of the LED light source, the temperature sensor, and the humidity sensor from the sunlight.

In the present invention, the bubble-

An upper housing having a lower portion thereof opened and a hollow portion formed therein and having a coupling through hole for inserting and fixing the bubble generating tube so as to discharge water containing bubbles of air bubbles from the bubble generating tube to the hollow portion;

A bubble crushing plate disposed in the hollow portion of the upper housing and having a plurality of through holes for separating and mixing water containing bubbles of air bubbles discharged from the bubbling tube to crush the bubbles; And

And a lower housing coupled to a lower portion of the upper housing and having a discharge passage for discharging water containing bubbles crushed in the bubble crushing plate,

A connecting pipe is connected to the discharge passage of the lower housing, and the bubble breaking nozzle is connected to the connecting pipe.

Wherein at least a portion of the plurality of through holes of the bubble crushing plate comprises an inflow region into which the fluid flows and an outflow region through which the fluid flows out, wherein the inner diameter of the inflow region is smaller than the inner diameter of the outflow region do.

In the hydroponic cultivation system equipped with the microbubble generator of the present invention, the bubble generation pipe may include a water supply portion disposed on the right side and having a first water flow passage with a first inside diameter, A first horizontal pipe including a drain portion in which a second water flow passage having a second inner diameter larger than the first inner diameter is formed;

And a third water flow passage communicating with the first water flow passage, wherein the water supply portion is in contact with one surface and a mountain and a valley are formed on the other surface;

Wherein the fourth water circulation passage is provided with a constant water supply passage and communicated with the third water circulation passage, the static pressure intensifying structure is located in the fourth water circulation passage, and the static pressure intensifying structure is brought into close contact with the water supply section, A second horizontal pipe connected to the second horizontal pipe; And

And an air supply pipe vertically connected to the first horizontal pipe and supplying air to the second water circulation passage of the drainage unit.

Further, in the present invention, each of the mountains and the valleys of the static pressure intensifying structure is spaced apart from each other, and is formed of at least three or more odd numbers.

Here, an acid and a valley of the static pressure intensifying structure are formed on the third water flow passage as a central axis on the 360 °.

The present invention is characterized in that the static pressure intensifying structure is in the shape of a round ring centered on the third water flow passage and the mountain and the valley are formed on a line connected from the third water flow passage to the outer peripheral surface of the other surface do.

Further, the present invention is characterized in that a screw groove is formed in the side surface of the air supply pipe, and an end of the extension pipe is connected to the screw groove; And

And an air control valve mounted on the other end of the extension pipe.

In the hydroponic cultivation system equipped with the microbubble generator of the present invention, the bubble breaking nozzle may include an inlet formed to introduce a fluid containing fine air bubbles, a flow channel communicating with the inlet and having an inner diameter larger than the inner diameter of the inlet, And a first outlet connected to the flow path;

A first plate opposed to the inlet port and inserted into the flow channel, the first plate having a plurality of first flow passages for passing the fluid;

A first ring chamber which is in contact with the first plate and is inserted into the flow passage, the fluid passing through the plurality of first flow passages of the first plate being filled;

A second plate which is in contact with the first ring chamber and is inserted into the flow passage, and in which a plurality of second flow passages for passing the fluid filled in the first ring chamber are formed; And

And a second nozzle pipe which is in contact with the second plate and is inserted into the flow path, and is coupled with a first outlet of the first nozzle pipe.

Here, the thickness t1 of the first plate, the thickness t2 of the first ring chamber, and the thickness t3 of the second plate satisfy the following conditions: t1 <t2 <t3.

The second flow path of the second plate includes a region into which the fluid flows and a region through which the fluid flows out,

And the inner diameter of the region into which the fluid flows is smaller than the inner diameter of the region through which the fluid flows out.

A third plate and a second ring chamber are sequentially disposed between the first ring chamber and the second plate, the third plate having a plurality of third flow passages for passing a fluid therethrough,

The first ring chamber is in contact with one surface of the third plate, one surface of the second ring chamber is in contact with the other surface of the third plate, and the second plate is in contact with the other surface of the second ring chamber .

In addition, the present invention is characterized in that a third plate and a second ring chamber are sequentially disposed between the first ring chamber and the second plate, the third plate having a plurality of third flow passages for passing a fluid therethrough,

The first ring chamber is in contact with one surface of the third plate, one surface of the second ring chamber is in contact with the other surface of the third plate, and the second plate is in contact with the other surface of the second ring chamber .

In the present invention, the second plate and the second nozzle pipe are integrally formed.

A hydroponic cultivation system having a micro bubble generator according to an embodiment of the present invention includes: a micro bubble generator that receives a constant and generates micro bubbles; And

And a hydroponic cultivation apparatus including a hydroponic cultivation tank in which microbubbles generated in the microbubble generator are supplied to grow plants,

The micro bubble generator comprises:

A second water flow passage communicating with the first water flow passage and having a second inner diameter larger than the first inner diameter and allowing air to flow in, a first water flow passage having a first inner diameter, 3 water flow passage, and a static pressure build-up structure in which the third water flow passage is formed and mountains and valleys for increasing the static pressure of the constant are formed, thereby discharging water containing bubbles of air bubbles A bubble generating tube; And

A bubble grinding tank for finely grinding air bubbles contained in water discharged from the bubble generating tube; And

And a bubble grinding nozzle for finely pulverizing the fine air bubbles pulverized in the bubble grinding tank to discharge water containing the abundant micro bubbles.

According to the present invention, by feeding the abundant microbubbles generated in the microbubble generator to the hydroponic cultivation tank of the hydroponic cultivation apparatus, it is possible to improve the growth of hydroponic cultivated plants, decompose eutrophides, activate microorganisms, Can be given.

According to the present invention, water having a bubble state containing air bubbles is generated in the bubble generating tube, the air bubbles are finely pulverized in the bubble grinding tank, the fine air bubbles are further finely pulverized in the bubble grinding nozzle, There is an effect that can generate a bubble.

According to the present invention, it is possible to circulate a constant water whose pressure has increased through the static pressure intensifying structure to the first water flow passage of the water supply portion having a small inner diameter, and to distribute the water flowing in the first water flow passage to the second water A negative pressure is generated in the second water flow path of the drainage section to allow the air supplied from the air supply pipe to be absorbed into the water discharged from the first water flow path of the water supply section to the second water flow path of the drainage section, The water containing the bubbles can be discharged from the second water passage in the drainage part.

1 is a schematic block diagram of a hydroponic cultivation system having a microbubble generator according to the present invention.
2 is a schematic block diagram of a hydroponic cultivation apparatus applied to a hydroponic cultivation system according to the present invention,
3 is a perspective view of a first embodiment of a hydroponic cultivation apparatus according to the present invention,
FIG. 4 is a photograph of a plant cultivated in the hydroponic cultivation apparatus of FIG. 3,
5 is a perspective view of a second embodiment of a hydroponic cultivation apparatus according to the present invention,
6 is a perspective view of a third embodiment of a hydroponic cultivation apparatus according to the present invention,
7 is a schematic perspective view of a micro bubble generator applied to a hydroponic culture system according to the present invention,
8 is an exploded perspective view of a microbubble generator applied to a hydroponic cultivation system according to the present invention,
9 is a top view of the lower case of the bubble grinding tank applied in accordance with the present invention,
10 is a bottom perspective view of a bubble crushing plate applied in accordance with the present invention,
11 is a cross-sectional view of a bubble grinding plate applied in accordance with the present invention,
12 is a perspective view of a bubble generating tube applied to a micro bubble generator according to the present invention,
13 is a schematic cross-sectional view of a bubble generating tube applied to a micro bubble generator according to the present invention,
14 is a view for explaining a method of forming an obstacle and a bone in a static pressure intensifying structure of a bubble generating tube applied to a micro bubble generator according to the present invention,
15 is a top view of a first embodiment of a static pressure strengthening structure applied in accordance with the present invention,
16 is a top view of a second embodiment of a static pressure strengthening structure applied in accordance with the present invention,
17 is a top view showing a modification of the second embodiment of the static pressure strengthening structure applied in accordance with the present invention,
18 is a top view of a third embodiment of a static pressure strengthening structure applied in accordance with the present invention,
19 is an assembled perspective view in which an air control valve is assembled to the bubble generating tube according to the present invention,
20 is an exploded perspective view of the bubble breaking nozzle according to the first embodiment applied to the micro bubble generator according to the present invention,
Fig. 21 is an assembled sectional view of Fig. 20,
22 is an exploded perspective view of the bubble breaking nozzle according to the second embodiment applied to the micro bubble generator according to the present invention,
23 is an assembled sectional view of FIG. 22,
24 is a cross-sectional view of a bubble breaking nozzle according to a third embodiment applied to the micro bubble generator according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic block diagram of a hydroponic cultivation system having a microbubble generator according to the present invention, and FIG. 2 is a schematic block diagram of a hydroponic cultivation apparatus applied to a hydroponic cultivation system according to the present invention.

Referring to FIGS. 1 and 2, a hydroponic cultivation system having a micro bubble generator according to the present invention includes a micro bubble generator 5000 and a hydroponic cultivation apparatus 6000.

The micro bubble generator 5000 includes a bubble generating tube 3200 for receiving water and discharging water containing bubbles of air bubbles; A bubble grinding tank 3000 for receiving water containing bubbles of air bubbles discharged from the bubble generating tube 3200 and finely crushing air bubbles to discharge water containing fine air bubbles; And a bubble breaking nozzle 3700 for finely pulverizing the fine air bubbles pulverized in the bubble breaking tank 3000 to discharge water containing rich microbubbles.

The bubble generating tube 3200, the bubble grinding tank 3000, and the bubble grinding nozzle 3700 are described in more detail in the following description.

Therefore, the micro bubble generator 5000 generates water having a bubble state containing air bubbles in the bubble generating tube 3200, finely crushes the air bubbles in the bubble grinding tank 3000, 3700), fine air bubbles are finely pulverized to generate abundant microbubbles.

Therefore, the micro bubble generator 5000 can supply the rich micro bubbles generated to the hydroponic cultivation tank 6100 of the hydroponic cultivation apparatus 6000, thereby improving the growth of hydroponic cultivated plants, decomposing eutrophic material, And the sterilization performance can be imparted.

The hydroponic cultivation apparatus 6000 includes a hydroponic cultivation apparatus 6100, an LED light source 6200, a temperature sensor 6300, and a humidity sensor 6400 as shown in FIG.

The hydroponic cultivation tank 6100 is a tank containing water containing microbubbles, and the plant grows while absorbing the water contained in the hydroponic cultivation tank 6100 by spreading its roots in water.

Plants that can be cultivated in Hydroponic cultivation (6100) are various hydroponic plants such as aquatic plants, grasses for animal feed, grasses, and crops.

The LED light source 6200 is for irradiating artificial light to the plant cultivated in the hydroponic cultivation tank 6100.

The temperature sensor 6300 and the humidity sensor 6400 detect the temperature and humidity of the hydroponic cultivation tank 6100 and sense the cultivation environment of the plant.

Further, in the present invention, a solar cell panel for obtaining a power source for driving the LED light source 6200, the temperature sensor 6300, and the humidity sensor 6400 from sunlight may be further included in the hydroponic cultivation apparatus.

FIG. 3 is a perspective view of a first embodiment of a hydroponic cultivation apparatus according to the present invention, FIG. 4 is a photograph of a plant cultivated in the hydroponic cultivation apparatus of FIG. 3, Fig. 6 is a perspective view of a third embodiment of a hydroponic cultivation apparatus according to the present invention. Fig.

The hydroponic cultivation apparatus of the hydroponic cultivation system of the present invention can be manufactured in various forms including the first to third embodiments described below.

First, as shown in FIG. 3, the first embodiment of the hydroponic cultivation apparatus includes a cabinet-shaped main body case 6111 having a transparent window through which the inside is viewed; A front transparent door 6115 installed on the front surface of the main body case 6111 and opened and closed; And a plurality of hydroponic cultivation vessels 6113a, 6113b, 6113c, 6113d, and 6113f installed in the main body case 6111 and vertically aligned and spaced apart from each other by a predetermined distance.

Here, the plurality of hydroponic cultivation vessels 6113a, 6113b, 6113c, 6113d, and 6113f may be configured to be supported by a plurality of shelves (not shown) spaced a certain distance from the main body case 6111.

In FIG. 3, a plurality of hydraulic-diameter regulating vessels 6113a, 6113b, 6113c, 6113d, and 6113f are shown in six stages, but the present invention is not limited thereto.

The water containing rich microbubbles generated in the microbubble generator may be distributed and supplied to the plurality of hydroponic cultivation vessels 6113a, 6113b, 6113c, 6113d, and 6113f, respectively, or a plurality of hydroponic cultivation vessels 6113a, 6113b, 6113c, 6113d, and 6113f, and water containing microbubbles may be introduced into the connection pipe.

The hydroponic cultivation apparatus of the first embodiment can be utilized, for example, as a commercial bud grower.

Therefore, as shown in Fig. 4, the hydroponic plant of the first embodiment can be cultivated with abundant hydroponic plants.

The second embodiment of the hydroponic cultivation apparatus can be implemented as a factory plant 6130 as shown in FIG. For example, the plant factory 6130 divides the inside into a plurality of areas, a multi-stage shelf frame is provided in each divided area, a hydroponic cultivation tank for hydroponic cultivation is disposed in the multi-stage shelf frame, .

These plant growing plants can grow a large number of specialized plants such as ginseng ginseng.

As shown in Fig. 6, the third embodiment of the hydroponic cultivation apparatus comprises a multi-stage shelf body 6121; A plurality of hydroponic cultivation vessels 6122a, 6122b, 6122c for hydroponics placed in the multi-stage shelf body 6121; 6122b, and 6122c in order to supply water containing rich microbubbles generated in the microbubble generator to the plurality of hydroponic cultivation vessels 6122a, 6122b, and 6122c, And connection pipes 6123a, 6123b, 6123c, and 6123d connected thereto.

Here, the micro bubble generator may be disposed below the multi-stage rack body 6121, and the first connection pipe 6123a connected to the bubble grinding nozzle of the micro bubble generator is connected to the first hydroponic cultivation vessel 6122a The first hydroponic cultivation tank 6122a and the second hydroponic cultivation tank 6122b are connected by a second connection pipe 6123b and the second hydroponic cultivation tank 6122b and the third hydroponic cultivation tank 6122c are connected to each other 3 connection pipe 6123c, and the third hydroponic cultivation tank 6122c and the drainage channel are connected by a fourth connection pipe 6123d.

That is, the water containing the abundant microbubbles discharged from the bubble breaking nozzle of the microbubble generator is introduced into the first hydroponic cultivation tank 6122a via the first connection pipe 6123a, and the first hydroponic cultivation tank 6122a, The water containing microbubbles supplied to the second hydroponic cultivation tank 6122b is supplied to the second hydroponic cultivation tank 6122b through the second connection pipe 6123b connected to the third hydroponic cultivation tank 6122c And then drained to the drainage channel through the fourth connection pipe 6123d.

The hydroponic cultivation apparatus of the third embodiment can be operated as a plant cultivation apparatus for entrepreneur establishment.

FIG. 7 is a schematic perspective view of a micro bubble generator applied to a hydroponic culture system according to the present invention, FIG. 8 is an exploded perspective view of a micro bubble generator applied to a hydroponic culture system according to the present invention, Fig. 3 is a top view of the lower case of the applied bubble grinding tank.

7 to 9, the micro bubble generator according to the present invention includes a bubble generating tube 3200, a bubble grinding tank 3000, and a bubble grinding nozzle 3700.

The bubble generating tube 3200 allows air to be absorbed into the supplied water, and discharges water containing bubbles of air bubbles.

The bubble generating tube 3200 is mounted to the bubble grinding tank 3000 so that water containing bubbles flows in the lateral direction of the bubble grinding tank 3000 and the bubble grinding tank 3000 is discharged from the bubble generating tube 3200 The air bubbles contained in the water are finely pulverized.

The bubble crushing nozzle 3700 is installed at a lower portion of the bubble crushing tank 3000 and finely crushes the crushed fine bubbles in the bubbling crushing tank 3000 to discharge water containing rich microbubbles.

That is, in the micro bubble generator of the present invention, water having a bubble state containing air bubbles is generated in the bubble generating tube 3200, the air bubbles are finely pulverized in the bubble grinding tank 3000, 3700), fine air bubbles are finely pulverized to generate abundant micro bubbles.

The bubble generating tube 3200 is inserted into the bubble generating tube 3200 so as to discharge water containing bubbles of air bubbles from the bubble generating tube 3200 to the hollow portion, An upper housing 3100 having a coupling through hole 3110 to be fixed on its side; A plurality of through holes 3320 are formed in the hollow portion of the upper housing 3100 to separate and mix the water containing the bubbles of the air bubbles discharged from the bubbling tube 3200, Plate 3300; And a lower housing 3500 coupled to a lower portion of the upper housing 3100 and formed with a discharge passage 3520 for discharging water containing bubbles which have been crushed in the bubble crushing plate 3300.

A connection pipe 3600 is connected to the discharge passage 3520 of the lower housing 3500 and a bubble breaking nozzle 3700 is connected to the connection pipe 3600.

The bubble generating tube 3200 is positioned on the upper side of the upper housing 3100 higher than the bubble crushing plate 3300.

Therefore, the bubble generating tube 3200 is mounted on the coupling through hole 3110 of the upper housing 3100 of the bubble disintegration tank 3000, so that the bubble generating tube 3200 mounted on the upper side of the upper housing 3100 The water containing bubbles of air bubbles is discharged to the bubble crushing plate 3300 located in the hollow portion of the upper housing 3100.

The bubble grinding plate 3300 has a plurality of through holes 3320. The bubble grinding plate 3300 separates water containing bubbles of air bubbles discharged from the bubble generating tube 3200 from the plurality of through holes 3320 And mixed, whereby the bubbles are finely pulverized.

The lower housing 3500 is coupled to the lower portion of the upper housing 3100 to form a housing, and a hollow portion is formed in the housing. The bubble grinding plate 3300 is positioned in the hollow portion.

Further, a discharge passage 3520 is formed in the lower housing 3500 to discharge the water containing the crushed bubbles in the bubble grinding plate 3300.

The water containing the pulverized bubbles discharged into the discharge passage 3520 of the lower housing 3500 is injected into the bubble breaking nozzle 3700 through the connecting pipe 3600 and the bubble breaking nozzle 3700 is injected The bubbles contained in the water are finely pulverized to discharge the water containing the abundant microbubbles.

In addition, in the present invention, the bubble grinding plate 3300 may be formed in a disc shape, and a fitting hole 3310 may be formed in the central region of the disc.

The micro bubble generator further includes a support rod 3400 fitted to the fitting hole 3310 of the bubble crushing plate 3300 and formed with an engagement protrusion 3410 for supporting the bubble crushing plate 3300 on the outer circumferential surface thereof As shown in FIG. 3, a fixing groove 3510 for fixing one end of the support rod 3400 to the lower housing 3500 may be formed.

The bubble grinding plate 3300 sandwiched by the support rod 3400 is caught by the engaging jaw 3410 so that the lower end of the engaging jaw 3410 One end of the support rod 3400 is fixed to the fixing groove 3510 of the lower housing 3500 so that the upper and lower housings 3100 and 3500 are coupled And the bubble grinding plate 3300 is positioned in the horizontal direction perpendicular to the support rod 3400. [

Since the bubble grinding plate 3300 inserted into the support rod 3400 is positioned above the support rod 3400 in the microbubble generator of the present invention, And a balance plate 3450 in which a plurality of water flow passages 3451 are formed around the fixing hole 3451 and the fitting hole 3451.

FIG. 10 is a bottom perspective view of a bubble crushing plate applied in accordance with the present invention, and FIG. 11 is a cross-sectional view of a bubble crushing plate applied in accordance with the present invention.

10 and 11, the bubble grinding plate 3300 is formed in a disk shape, and a fitting hole 3310 is formed in a central region. A plurality of through holes 3320 formed in the bubble grinding plate 3300 are inserted And is formed in the disk region around the hole 3310. [

The water containing bubbles of air bubbles discharged from the bubble generating tube 3200 to the bubble crushing plate 3300 is separated into a plurality of through holes 3320 formed in the bubble crushing plate 3300, (I.e., in a state in which they are combined).

At least a part of the plurality of through holes 3320 of the bubble grinding plate 3300 includes an inflow region 3321 into which the fluid flows and an outflow region 3322 through which the fluid flows, 3321 is designed to be smaller than the inner diameter of the outflow region 3322 through which the fluid flows out.

That is, the air discharged to the bubble grinding plate 3300 flowing into the plurality of through holes 3320 of the bubble grinding plate 3300 including the inflow region 3321 into which the fluid flows and the outflow region 3322 through which the fluid flows out The water containing bubbles of bubbles is mixed while flowing through an inflow region 3321 having a small inner diameter and then flowing out to an outflow region 3322 having a large inner diameter, thereby pulverizing the fine air bubbles to a finer size.

At this time, the inner diameters D1, D2, and D3 of the outflow areas 3322 of the plurality of through holes 3320 of the bubble crush plate 3300 can be designed to gradually increase in the radial direction in the fitting hole 3310. [ That is, the inner diameters d1, d2, and d3 of the outflow areas 3322 of the plurality of through holes 3320 are gradually increased from the fitting hole 3310 toward the outer peripheral surface.

FIG. 12 is a perspective view of a bubble generating tube applied to a micro bubble generator according to the present invention, and FIG. 13 is a schematic cross-sectional view of a bubble generator tube applied to a micro bubble generator according to the present invention.

12 and 13, the bubble generating tube applied to the micro bubble generator according to the present invention is disposed on the right side and includes a water supply portion 111 having a first water flow passage 111 having a first inside diameter D1, (120) disposed on the left side of the first horizontal pipe (110) and having a second water flow path (121) having a second inner diameter (D2) larger than the first inner diameter (D1) (100); And a third water flow passage 201 communicating with the first water flow passage 111. The first water flow passage 201 is in contact with the water supply portion 110 and has a mountain portion and a valley formed on the other surface, Reinforcing structure 200; Wherein the fourth water circulation passage (11) is provided with a constant water supply passage and communicated with the third water circulation passage (201), the static pressure intensifying structure (200) is located in the fourth water circulation passage (11) A second horizontal pipe (10) fastened to the water supply part (110) while closely adhering the static pressure intensifying structure (200) to the water supply part (110); And an air supply pipe 300 vertically connected to the first horizontal pipe 100 and supplying air to the second water circulation path 121 of the drainage unit 120.

Here, the outer peripheral surface of the water supply portion 110 of the first horizontal pipe 100, the side surface of the static pressure intensifying structure 200 (side surface of the static pressure intensifying structure 200 connected to the other surface from one surface as shown in FIG. 13) , And a thread groove is formed in each of the inner surfaces of the fourth water flow passage (11).

The water supply portion 110 of the first horizontal pipe 100 is connected to the fourth water flow passage 11 after the static pressure intensifying structure 200 is screwed and fastened to the inner surface of the fourth water flow passage 11, The first horizontal pipe 100 is fastened to the second horizontal pipe 10 while the static pressure intensifying structure 200 is in close contact with the water supply part 110 by an assembling process of screwing the first horizontal pipe 100 and the second horizontal pipe 10 to each other.

The fourth water passage 11 of the static pressure intensifying structure 200 is formed so that the inner diameter of the region adjacent to the water supply portion 110 is smaller than the inner diameter of the water inlet, A screw groove formed on the inner side surface of the region adjacent to the water supply portion 110 having a small inner diameter and a screw groove formed on the outer side surface of the water supply portion 110 are combined and assembled Can be implemented.

The inner diameter D3 of the third water passage 201 of the static pressure intensifying structure 200 is the same as the first inner diameter D1 of the first water passage 111 of the water supply portion 110, The inner diameter D4 of the water flow passage 11 is designed to be larger than the inner diameter D3 of the third water flow passage 201 of the static pressure intensifying structure 200. [

The constant water supplied through the second horizontal pipe 10 is increased in static pressure in the static pressure intensifying structure 200 so that the third water passageway 201 of the static pressure intensifying structure 200 and the water supply portion of the first horizontal pipe 100 Flows through the first water flow passage 111 of the first water flow passage 110 and the water pressure of water flowing to the third water flow passage 201 becomes larger than the constant water pressure.

The other surface of the static pressure intensifying structure 200 is protruded from the third water flow path 201 and the water is quickly discharged to the third water flow path 201 while the constant bumps against the static pressure intensifying structure 200 The water pressure of the water flowing into the third water flow passage 201 becomes larger than the water pressure of the constant.

The second inner diameter D2 of the second water flow passage 121 of the drainage section 120 is designed to be larger than the first inner diameter D1 of the first water flow passage 111 of the water supply section 110 , The water flowing into the first water flow passage 111 of the water supply portion 110 having a small inner diameter suddenly escapes to the second water flow passage 121 having a large inner diameter and a negative pressure is generated.

This negative pressure causes the water flowing out from the first water flow passage 111 of the water supply section 110 to the second water flow passage 121 of the drainage section 120 to flow perpendicularly to the horizontal axis of the first horizontal pipe 100 And suck air supplied from the air supply pipe 300 to be disposed.

That is, air is absorbed into the water flowing into the second water flow passage 121 of the drainage section 120 to become water containing bubbles.

Therefore, water discharged from the second water passage 121 of the drainage section 120 becomes bubbled water containing air (in the form of air bubbles).

Therefore, in the bubble generation pipe according to the present invention, the water having increased water pressure through the static pressure intensifying structure flows into the first water flow passage of the water supply portion having a small inner diameter, and water flowing in the first water flow passage is relatively large The second water circulating passage of the water discharging portion generates a negative pressure in the second water circulating passage of the water discharging portion to discharge water supplied from the air supplying pipe to the water discharged from the first water circulating passage of the water supplying portion to the second water circulating passage of the water discharging portion, So that the water containing the bubbles can be discharged from the second water flow passage in the drainage section.

FIG. 14 is a view for explaining a method of forming mountains and bones in a static pressure intensifying structure of a bubble generating tube applied to a microbubble generator according to the present invention, and FIG. Fig. 16 is a top view of a second embodiment of a static pressure strengthening structure applied in accordance with the present invention, and Fig. 17 is a top view showing a modification of the second embodiment of a static pressure strengthening structure applied in accordance with the present invention.

The static pressure intensifying structure is manufactured separately from the first horizontal pipe 100 and the second horizontal pipe 10.

Since the static pressure intensifying structure has a predetermined thickness, the static pressure intensifying structure 200 has a side surface connected to the other surface of the static surface intensifying structure 200, and one surface and the other surface have a circular ring shape centering on the third water passage 201 .

At this time, the mountains and the bones of the static pressure intensifying structure are spaced apart from each other, and it is preferable to form at least three or more odd numbers.

That is, as shown in Fig. 14, the acid 205a1, 205a2, 205a3 and the valleys 205b1, 205a2, 205a3 are formed on the 360 ° of the other surface 205 of the static pressure increasing structure with the third water passage 201 as a center axis, 205b2 and 205b3 are formed by three, the angles? 1,? 2,? 3 between the mountains and the mountains are 120 占 and the valleys are formed between the mountains and the mountains.

As shown in FIG. 15, the first embodiment of the static pressure build-up structure formed in this manner is a structure in which the static pressure intensifying structure is implemented in the shape of a circular ring centering on the third water flow passage 201, and the mountains 211a, 211b, 211c and 211d And 211e and the valleys 212a, 212b, 212c, 212d and 212e are connected from the third water flow passage 201 to the outer peripheral surface of the other surface 210 of the static pressure intensifying structure As shown in Fig.

16 and 17, in the second embodiment of the static pressure intensifying structure, the other surface 225 of the static pressure intensifying structure 220 is concavely worked to form a mountain and a valley in a concave region, (201) is located in the lower region of the concave region.

In this case, the acid is formed on a line connected to the third water passage 201 from the inside of the other surfaces 225 and 235 of the static pressure intensifying structures 220 and 230, and the valley is formed on the outer surface of the other surfaces 225 and 235 of the static pressure intensifying structures 220 and 230, And is formed on a line connected to the flow path 201.

That is, FIG. 16 shows a second embodiment of the static pressure intensifying structure in which three halves (221a, 221b, 221c) and three halves (222a, 222b, 222c) are formed on the other surface 225 of the static pressure strengthening structure 220.

17 is a sectional view showing the structure of the static pressure build-up structure 220 in which five hydrogens 231a, 231b, 231c, 231d and 231e and five valleys 232a, 232b, 232c, 232d and 232e are formed on the other surface 235 A modification of the second embodiment of the structure.

18 is a top view of a third embodiment of a static pressure strengthening structure applied in accordance with the present invention.

In the present invention, the third embodiment of the static pressure intensifying structure can be implemented by forming mountains and valleys on the line connecting from the inside of the other surface 255 of the static pressure intensifying structure 250 to the third water passage 201.

Concave curvatures of the mountains 251a, 251b, 251c, 251d and 251e and the valleys 252a, 252b, 252c, 252d and 252e on the other surface 255 of the static pressure intensifying structure 250, 250).

19 is an assembled perspective view in which an air control valve is assembled in the bubble generating tube according to the present invention.

The amount of air bubbles that can be absorbed in the water flowing in the second water flow passage of the drainage portion can be adjusted by adjusting the amount of air supplied to the water supply portion 110 by mounting the air control valve 520 on the bubble generation pipe .

The air control valve 520 is formed with a thread groove on the inner surface of the air supply pipe 300 so that the air control valve 520 can be coupled to the air supply pipe 300, As shown in Fig.

An air control valve 520 is mounted on the other end of the extension pipe 510.

The air control valve 520 is provided with an inlet through which air is introduced, and an air passage communicating with the inlet is connected to the extension pipe 510, and an opening / closing means is formed on the air passage.

That is, the amount of air supplied to the air supply pipe 300, which communicates with the extension pipe 510, is controlled by controlling the degree of opening / closing of the plurality of air holes of the opening / closing means by turning a screw projected to the outside of the air control valve 520 will be.

20 is an exploded perspective view of the bubble breaking nozzle according to the first embodiment applied to the micro bubble generator according to the present invention, and FIG. 21 is an assembled sectional view of FIG. 20.

20 and 21, the bubble breaking nozzle according to the first embodiment applied to the micro bubble generating device according to the present invention includes an inlet 1101 formed to introduce a fluid containing fine air bubbles, an inlet 1101 A first nozzle pipe 1100 communicating with the flow path 1102 and having an inner diameter larger than the inner diameter of the inlet 1101 and a first outlet 1103 connected to the flow path 1102; A first plate 1200 opposed to the inlet 1101 and inserted into the flow passage 1102 and having a plurality of first flow passages 1210 for passing the fluid; A first ring chamber 1300 that is in contact with the first plate 1200 and is inserted into the passage 1102 and filled with a fluid having passed through a plurality of first flow paths 1210 of the first plate 1200, ; And a second channel 1610 formed in the first ring chamber 1300 to be inserted into the channel 1102 and to pass a fluid filled in the first ring chamber 1300. [ (1600); And a second nozzle pipe 1800 which is in contact with the second plate 1600 and is inserted into the flow path 1102 and is engaged with the first outlet 1103 of the first nozzle pipe 1100. [ do.

A fluid containing fine air bubbles is introduced into the inlet 1101 of the first nozzle pipe 1100 and the fluid flows through the first plate 1200, the first ring chamber 1300, Is further finely crushed while passing through the second plate (1600) and discharged to the second nozzle pipe (1800) combined with the first outlet (1103).

The reason why the inner diameter of the flow path 1102 of the first nozzle pipe 1100 is larger than the inner diameter of the inlet port 1101 is that the first plate 1200, the first ring chamber 1300, So that the plate 1600 is not released to the inlet 1101.

The second nozzle pipe 1800 is inserted into the flow path 1102 and is engaged with the first outlet port 1103 of the first nozzle pipe 1100 while being in contact with the second plate 1600, The first ring chamber 1300 and the second plate 1600 are brought into close contact with the inlet 1101.

21, the end of the second nozzle pipe 1800 is coupled with the first outlet port 1103 of the first nozzle pipe 1100 so that the end of the second nozzle pipe 1800 is connected to the second The first plate 1200 and the first ring chamber 1300 and the second plate 1600 are in close contact with each other while the first plate 1200 is in close contact with the inlet 1101, The fluid containing the fine air bubbles flowing through the first ring chamber 1101 in the first plate 1200 flows through the first flow path 1210 of the first plate 1200, the first ring chamber 1300, the second flow path 1610 of the second plate 1600 &Lt; / RTI &gt;

The number of the second flow passages 1610 of the second plate 1600 is greater than the number of the first flow passages 1210 of the first plate 1200, Many are preferred.

21, the thickness t1 of the first plate 1200, the thickness t2 of the first ring chamber 1300, and the thickness t3 of the second plate 1600 satisfy t1 &lt; t2 &Lt; t3.

The first flow path 1210 of the first plate 1200 is formed as a hole penetrating from one surface of the first plate 1200 to the other surface.

In addition, the first ring chamber 1300 is interposed between the first and second plates 1600 in a ring shape, so that the inside of the ring functions as a chamber in which the fluid is filled.

At this time, the fluid that has passed through the first flow path 1210 of the first plate 1200 is filled in the first ring chamber 1300 and mixed to separate the minute air bubbles contained in the fluid into finer sizes.

The fluid filled in the first ring chamber 1300 passes through the second flow path 1610 of the second plate 1600.

The inner diameter of the second flow passage 1610 of the second plate 1600 is smaller than the inner diameter of the outflow region so that the fluid flowing into the first and the first flow passages 1210 The contained fine air bubbles are finely pulverized.

That is, as the fluid passes through a region having a small inner diameter of the second flow passage 1610 and exits to a region having a relatively large inner diameter, the fluids are mixed with each other.

At this time, the fine air bubbles are further finely pulverized in the process of mixing with the fluid.

Here, the relatively large-diameter region in which the fluid of the second flow passage 1610 of the second plate 1600 flows out is a region machined into a plurality of concave cylindrical grooves in the second plate 1600, A region having a small inner diameter to be introduced can be embodied as a hole-processed region penetrating the bottom of each of a plurality of concave cylindrical grooves.

More specifically, each of the plurality of third flow passages 1610 of the second plate 1600 includes an inflow region 1611 through which the fluid flows and an outflow region 1612 through which the fluid flows, The inner diameter of the inflow region 1611 is designed to be smaller than the inner diameter of the outflow region 1612 through which the fluid flows.

Here, each of the plurality of third flow paths 1610 of the second plate 1600 has a structure in which the inflow region 1611 and the outflow region 1612 are integrally connected.

Therefore, the fluid filled in the first ring chamber 1300 separates into a plurality of third flow passages 1610 of the second plate 1600 and flows out of the plurality of third flow passages 1610 of the second plate 1600 1610 flows into the inflow region 1611 having a smaller inner diameter of each of the plurality of third flow passages 1610 of the second plate 1600 and thereafter flows into the outflow region 1612 having a relatively larger inner diameter, The separated fluid is mixed in each of the outflow regions 1612 to break up the minute air bubbles contained in the fluid to a finer size.

Therefore, in the bubble breaking nozzle according to the first embodiment of the present invention, the first plate, the first ring chamber, and the second plate are inserted into the flow path of the first nozzle pipe to join the first and second nozzle pipes, The fluid containing the fine air bubbles is passed through the first flow path of the first plate, the first ring chamber, and the second flow path of the second plate, while mixing and grinding are performed to enrich the micro bubbles of finer size There is an advantage that can be generated.

FIG. 22 is an exploded perspective view of the bubble crushing nozzle according to the second embodiment applied to the microbubble generator according to the present invention, and FIG. 23 is an assembled cross-sectional view of FIG.

The bubble crushing nozzle according to the second embodiment applied to the micro bubble generator according to the present invention has the third plate 1400 between the first ring chamber 1300 and the second plate 1600 of the fluid nozzle of the first embodiment, And a second ring chamber 1500 sequentially in this order.

One surface of the third plate 1400 is in contact with the first ring chamber 1300 and the other surface of the second ring chamber 1500 is in contact with the other surface of the third plate 1400. In the second ring chamber 1500, The second plate 1600 is brought into contact with the other surface of the second plate 1600.

Therefore, the second ring chamber 1500 is interposed between the third plate 1400 and the second plate 1600, and a chamber is formed inside the ring structure of the second ring chamber 1500.

The third plate 1400 is provided with a plurality of third flow passages 1610 through which fluids pass and the third flow passages 1610 are formed as holes penetrating from one surface of the third plate 1400 to the other surface.

In the present invention, when the end of the second nozzle pipe 1800 is engaged with the first outlet 1103 of the first nozzle pipe 1100, the first plate 1200, the first ring chamber 1300, The second plate 1600 and the end of the second nozzle pipe 1800 are connected to each other so that the third plate 1400, the second ring chamber 1500, and the second plate 1600 can be more strongly adhered to the inlet 1101. [ The contact ring 1700 can be further interposed between the contact rings 1700 and 1700.

23, the thicknesses t1 and t4 of the first and third plates 1400 can be designed to be equal to each other, and the thicknesses t2 and t4 of the first and second ring chambers 1500, t5 can be designed to be equal to each other.

At this time, the thicknesses t1 and t4 of the first and third plates 1400, the thicknesses t2 and t5 of the first and second ring chambers 1500 and the thickness t3 of the second plate 1600 are t1 , t4 &lt; t2, and t5 &lt; t3.

In the present invention, the thicknesses t1 and t4 of the first and third plates 1400 can be designed differently and the thicknesses t2 and t5 of the first and second ring chambers 1500 can be designed differently have.

In this case, the thicknesses t1 and t4 of the first and third plates 1400, the thicknesses t2 and t5 of the first and second ring chambers 1500 and the thickness t3 of the second plate 1600 are t1 &Lt; t4 &lt; t2 &lt; t5 &lt; t3.

The thicknesses t1 and t4 of the first and third plates 1400, the thicknesses t2 and t5 of the first and second ring chambers 1500 and the thickness t3 of the second plate 1600 The flow nozzle and the chamber filling amount are adjusted to maximize the mixing of the fluid to further finely crush the fine air bubbles, thereby realizing a fluid nozzle capable of discharging fluid with increased bubble generation.

In the present invention, the number of the third flow passages 1610 of the third plate 1400 is smaller than the number of the first flow passages 1210 of the first plate 1200, The number of the flow paths 1210 can be designed to be smaller than the number of the second flow paths 1610 of the second plate 1600.

That is, the number of the flow paths of the first to third plates 1200, 1600 and 1400 may be designed differently so that the mixing of the fluid passing through the flow paths of the first to third plates 1400 can be further increased.

24 is a cross-sectional view of a bubble breaking nozzle according to a third embodiment applied to the micro bubble generator according to the present invention.

In the fluid nozzle of the third embodiment applied to the micro bubble generator according to the present invention, the second plate 1600 and the second nozzle pipe 1800 of the fluid nozzles of the first and second embodiments are integrated.

24, the integral structure of the second plate 1600 and the second nozzle pipe 1800 is the same as the first ring chamber 1300 of the first embodiment or the second ring chamber 1500 of the second embodiment, The second plate 1600 is exposed only to the second flow passage 1610 having a small inner diameter so that the integral second plate 1600 can excellently adhere to the second ring chamber 1500, Can be further simplified.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

10, 100: Horizontal pipe 11, 111, 121, 201:
110: water supply unit 120: drainage unit
200: Static pressure intensifying structure 205, 210, 220, 230, 250:
300: air supply pipe 510: extension pipe
520: air control valve 1101: inlet
1102: a flow path 1103: a first outlet
1100, 1800: nozzle pipe 1200, 1400, 1600: plate
1210, 1410, 1610: Distribution channel 1300, 1500: Ring chamber
3000: Bubble grinding tank 3110: Coupling through hole
3200: Bubble generating tube 3300: Bubble grinding plate
3310: insertion hole 3320: through hole
3400: support rod 3410:
3450: Balance plate 3451: Water flow path
3452: Fitting fixing hole 3500: Lower housing
3510: fixing groove 3520: exhaust passage
5000: Micro bubble generating device 6000: Hydroponic cultivation device
6100: Hydroponic cultivation tank 6200: LED light source
6300: Temperature sensor 6400: Humidity sensor

Claims (16)

A micro bubble generator that receives a constant and generates micro bubbles; And
And a hydroponic cultivation apparatus including a hydroponic cultivation tank in which microbubbles generated in the microbubble generator are supplied to grow plants,
The micro bubble generator comprises:
And a drain portion disposed on the right side and having a first water flow passage with a first inside diameter and formed with a second water flow passage disposed on the left side and discharging water and having a second inside diameter larger than the first inside diameter And a third water flow passage communicating with the first water flow passage is formed on the other side of the first water pipe and the second water pipe, And a fourth water circulation passage to which the constant water is supplied and which is in communication with the third water circulation passage, wherein the static pressure intensification structure is located in the fourth water circulation passage, and the static pressure intensification structure is brought into close contact with the water supply section A second horizontal pipe connected to the water supply unit and an air supply pipe connected to the first horizontal pipe and supplying air to the second water circulation channel of the drainage unit, Containing Bubble generation pipe for discharging;
A bubble grinding tank for receiving water containing bubbles of air bubbles discharged from the bubble generating tube and finely crushing air bubbles to discharge water containing fine air bubbles; And
And a bubble grinding nozzle for finely pulverizing the micro-air bubbles pulverized in the bubble grinding tank to discharge water containing rich micro-bubbles. The method according to claim 1,
The hydroponic cultivation apparatus comprises:
And a humidity sensor for detecting the humidity of the hydroponic cultivation tank, an LED light source for irradiating artificial light to the plant cultivated in the hydroponic cultivation tank, a temperature sensor for detecting the temperature of the hydroponic culture tank, and a humidity sensor for detecting humidity of the hydroponic cultivation tank. Hydroponic cultivation system with generator. 3. The method of claim 2,
The hydroponic cultivation apparatus comprises:
Further comprising a solar cell panel for obtaining a power source for driving at least one of the LED light source, the temperature sensor, and the humidity sensor from sunlight. The method according to claim 1,
The bubble grinding tank may include:
An upper housing having a lower portion thereof opened and a hollow portion formed therein and having a coupling through hole for inserting and fixing the bubble generating tube so as to discharge water containing bubbles of air bubbles from the bubble generating tube to the hollow portion;
A bubble crushing plate disposed in the hollow portion of the upper housing and having a plurality of through holes for separating and mixing water containing bubbles of air bubbles discharged from the bubbling tube to crush the bubbles; And
And a lower housing coupled to a lower portion of the upper housing and having a discharge passage for discharging water containing bubbles crushed in the bubble crushing plate,
Wherein the connecting pipe is connected to the discharge passage of the lower housing, and the bubble breaking nozzle is connected to the connecting pipe. 5. The method of claim 4,
Wherein at least a portion of the plurality of through holes of the bubble crushing plate comprises an inflow region into which the fluid flows and an outflow region through which the fluid flows out and the inner diameter of the inflow region is smaller than the inner diameter of the outflow region. A hydroponic cultivation system equipped with a bubble generator. delete The method according to claim 1,
Wherein the mountains and the valleys of the static pressure intensifying structure are spaced apart from each other and are formed of at least three or more odd numbers. 8. The method of claim 7,
And a mountain and a crest of the static pressure intensifying structure are formed on the third water flow passage as a center axis at an angle of 360 °. The method according to claim 1,
Wherein the static pressure intensifying structure is formed in a circular ring shape centering on the third water flow passage and the mountain and the valley are formed on a line connecting from the third water flow passage to the outer peripheral surface of the other surface. And a hydroponic plant. The method according to claim 1,
An extension pipe having a screw groove formed in a side surface of the air supply pipe and having one end connected to the screw groove; And
Further comprising an air control valve mounted on the other end of the extension pipe. The method according to claim 1,
Wherein the bubble breaking nozzle comprises:
A first nozzle pipe including an inlet formed to introduce a fluid containing fine air bubbles, a flow path communicating with the inlet and having an inner diameter larger than an inner diameter of the inlet, and a first outlet connected to the flow path;
A first plate opposed to the inlet port and inserted into the flow channel, the first plate having a plurality of first flow passages for passing the fluid;
A first ring chamber which is in contact with the first plate and is inserted into the flow passage, the fluid passing through the plurality of first flow passages of the first plate being filled;
A second plate which is in contact with the first ring chamber and is inserted into the flow passage, and in which a plurality of second flow passages for passing the fluid filled in the first ring chamber are formed; And
And a second nozzle pipe which is in contact with the second plate and is inserted into the flow path and is coupled to a first outlet of the first nozzle pipe. 12. The method of claim 11,
Wherein the thickness t1 of the first plate, the thickness t2 of the first ring chamber and the thickness t3 of the second plate satisfy the following conditions: t1 <t2 <t3. Hydroponic cultivation system. 12. The method of claim 11,
Wherein the second flow path of the second plate comprises a region into which the fluid flows and a region through which the fluid flows out,
Wherein the inner diameter of the region into which the fluid flows is smaller than the inner diameter of the region through which the fluid flows. 12. The method of claim 11,
A third plate and a second ring chamber are sequentially disposed between the first ring chamber and the second plate, the third plate having a plurality of third flow passages for passing a fluid therethrough,
The first ring chamber is in contact with one surface of the third plate, one surface of the second ring chamber is in contact with the other surface of the third plate, and the second plate is in contact with the other surface of the second ring chamber Wherein the microbubble generator is a microbubble generator. 12. The method of claim 11,
Wherein the second plate and the second nozzle pipe are integrally formed. delete

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