KR102599719B1 - Hydroponics cultivation apparatus using aqua plasma method - Google Patents

Abstract

A hydroponic cultivation device according to an aspect of the present invention includes a sterilizing water generator that generates sterilizing water by electrolyzing water, a culture plate receiving water from the sterilizing water generator, and a culture plate accommodating plants, and a case accommodating the culture plates. A supporter fixed within the case to support the culture plate, a water supply pipe for supplying water to the culture plate, an incubator including a first spray nozzle and a second spray nozzle connected to the water supply pipe to spray water, the incubator It includes an air circulation pipe connected to circulate air, and a ventilator connected to the air circulation pipe to circulate air, wherein the sterilizing water generator decomposes water molecules into hydrogen ions and oxygen ions by underwater plasma discharge, It forms hydroxyl radicals, and an ozone gas supply part that supplies ozone gas is installed in the air circulation pipe to suppress the formation of mold.

Description

Hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method {HYDROPONICS CULTIVATION APPARATUS USING AQUA PLASMA METHOD}

The present invention relates to a hydroponic cultivation device, and more specifically, to a hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method.

The cultivation system of agricultural plants is largely divided into open field cultivation and facility cultivation. The facility cultivation refers to growing plants using a glass greenhouse or greenhouse, and facility cultivation is divided into soil cultivation and hydroponic cultivation. Existing soil cultivation has problems such as growing plants in poor soil quality due to excessive use of chemical fertilizers or agricultural chemicals, which reduces plant growth. Therefore, hydroponic cultivation, which does not cause these problems, has recently been widely practiced.

Hydroponic cultivation is the cultivation of leaf vegetables and fruit vegetables rather than root vegetables by supplying the water necessary for plant growth without growing plants in soil. It has the advantage of fast growth of plants and the ability to cultivate them at the required time.

However, in the case of conventional hydroponic cultivation, since each bed is filled with nutrient solution and various devices are installed to replenish the nutrient solution in the bed, there is a problem of harmful bacteria and eutrophication occurring due to decay of the nutrient solution, and the structure is complicated. Therefore, in order to repair each of the beds for maintenance, there is a problem that the entire bed must be replaced, and there is a problem that requires know-how to manage the growth condition of plants according to hydroponic cultivation. Additionally, there is a problem that the inside of the hydroponic cultivation device is over-humidified, causing harmful bacteria such as mold to grow.

Based on the technical background described above, the present invention provides a hydroponic cultivation device that can suppress the growth of harmful bacteria such as mold and increase nutrients using the aqua plasma method.

A hydroponic cultivation device according to an aspect of the present invention includes a sterilizing water generator that generates sterilizing water by electrolyzing water, a culture plate receiving water from the sterilizing water generator, and a culture plate accommodating plants, and a case accommodating the culture plates. A supporter fixed within the case to support the culture plate, a water supply pipe for supplying water to the culture plate, an incubator including a first spray nozzle and a second spray nozzle connected to the water supply pipe to spray water, the incubator It includes an air circulation pipe connected to circulate air, and a ventilator connected to the air circulation pipe to circulate air, wherein the sterilizing water generator decomposes water molecules into hydrogen ions and oxygen ions by underwater plasma discharge, It forms hydroxyl radicals, and an ozone gas supply part that supplies ozone gas is installed in the air circulation pipe to suppress the production of mold and harmful bacteria.

The air circulation pipe according to one aspect of the present invention includes a transparent pipe portion made of a transparent material, and the transparent pipe portion is installed with an ultraviolet sterilizing portion that irradiates ultraviolet rays into the transparent pipe portion, and the ultraviolet sterilizing portion surrounds the transparent pipe portion. It may be in a tubular shape.

A swirler that mixes ozone gas and air may be installed in the air circulation pipe according to one aspect of the present invention.

The sterilizing water generator according to one aspect of the present invention may further include an ultrasonic processing unit that applies ultrasonic waves to the sterilizing water.

The sterilizing water generator according to one aspect of the present invention may further include a microbubble supply unit for injecting microbubbles into the sterilizing water.

The sterilizing water generator according to one aspect of the present invention may further include an ultraviolet irradiation unit that irradiates ultraviolet rays to the sterilizing water.

Inside the incubator according to one aspect of the present invention, hypochlorous acid water is produced by mixing chlorine gas generated by electrolysis of diluted hydrochloric acid with water, and the produced hypochlorous acid water is sprayed into the air inside the incubator. A water spray unit is installed, and the hypochlorous acid water spray unit can be installed on the ceiling and walls of the incubator.

As described above, the hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method according to one aspect of the present invention has a sterilizing water generator that generates sterilizing water by electrolyzing water and converts water molecules into hydrogen ions and hydrogen ions by underwater plasma discharge. Not only can it kill bacteria by decomposing into oxygen ions and forming hydroxyl groups, but it can also increase nutrients such as GABA, policosanol, and saponarin. In addition, an ozone gas supply unit is installed in the air circulation pipe to supply ozone gas into the incubator, thereby minimizing the occurrence of mold and harmful bacteria.

Figure 1 is a configuration diagram of a hydroponic cultivation device according to a first embodiment of the present invention.
Figure 2 is a perspective view showing an incubator according to a first embodiment of the present invention.
Figure 3 is a diagram showing a rail and a transfer pillar according to the first embodiment of the present invention.
Figure 4 is a diagram showing a support, a culture plate, and a water supply pipe according to the first embodiment of the present invention.
Figure 5 is a configuration diagram of a hydroponic cultivation device in the second embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be exemplified and explained in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as 'include' or 'have' are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. At this time, note that in the attached drawings, like components are indicated by the same symbols whenever possible. Additionally, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some components are exaggerated, omitted, or schematically shown in the accompanying drawings.

Hereinafter, a hydroponic cultivation device according to an embodiment of the present invention will be described. Figure 1 is a configuration diagram of a hydroponic cultivation device according to a first embodiment of the present invention, Figure 2 is a perspective view showing a cultivator according to a first embodiment of the present invention, and Figure 3 is a schematic diagram of a hydroponic cultivation device according to a first embodiment of the present invention. This is a diagram showing a rail and a transport pillar according to the present invention, and Figure 4 is a diagram showing a support, a culture plate, and a water supply pipe according to the first embodiment of the present invention.

1 to 4, the hydroponic cultivation device 10 for suppressing harmful bacteria using the aqua plasma method according to the first embodiment includes a sterilizing water generator 300 that generates sterilizing water by electrolyzing water. ), an air circulation pipe 230 connected to the incubator 100 for cultivating plants by receiving water from the sterilizing water generator 300, and an air circulation pipe 230 connected to the air circulation pipe 230 to circulate air (210), it may include an ozone gas supply unit 250 connected to the air circulation pipe 230 to supply ozone gas.

In this description, the aqua plasma method refers to a method of electrolyzing water by discharging underwater and generating low-temperature aqua plasma and microbubble ion clusters, thereby producing hydrophobic water with sterilizing and growth promoting functions.

The sterilizing water generator 300 is a device that electrolyzes water. It decomposes water molecules into hydrogen ions and oxygen ions by underwater discharge, and forms low-temperature aqua plasma and microbubbles made of hydrogen ions and oxygen ions. Hydrogen ions and oxygen ions produce hydrogen peroxide (H2O2), hypochlorous acid (HOCl), hydroxyl group (OH-), and oxyanion (O2-). The hydroxyl group generated by underwater discharge is unstable due to its molecular nature, and combines with hydrogen cations, a component of the bacterial cell membrane, to destroy the bacterial cell membrane and inactivate the bacteria.

To this end, the sterilizing water generator 300 includes an electrolyzer 310 containing water and electrodes 320 inserted into the electrolyzer 310. The electrolyzer 310 has a platinum-coated structure. When the electrolyzer 310 is coated with platinum, hydrogen water can be more easily generated. The electrodes 320 are formed with a plurality of slits, and when slits are formed in the electrodes, reaction efficiency can be improved. The sterilizing water generator 300 supplies water to the incubator 100 through the water supply pipe 350.

The incubator 100 has an internal space and includes a case 110 for accommodating a culture plate 120, a culture plate 120 for accommodating plants, and a support 141 fixed within the case 110 to support the culture plate 120. ), a water supply pipe 130 that supplies water to the culture plate 120, and a first spray nozzle 131 and a second spray nozzle 132 that are connected to the water supply pipe 130 and spray water. there is.

Case 110 has a rectangular parallelepiped shape, and an openable cover may be installed on the front. The ventilator 210 may be connected to the rear of the case 110. The culture plate 120 is made of a square plate, and seedlings or seeds can be accommodated in the culture plate 120. In particular, sprout barley can be accommodated in the culture plate 120.

The support 141 includes a fixed plate fixed to the case 110 and a support plate bent from the fixed plate and in contact with the lower surface of the culture plate 120. The culture plate 120 is held by the case 110 by the two supports 141. ) is placed within. A bracket 135 is fixed below the support 141, and a mounting hole 135a may be formed in the bracket 135. The bracket 135 supports the growth lamp 136, and the growth lamp 136 is inserted into the mounting hole 135a. The growth lamp 136 has a rod shape including an LED element and irradiates light at an angle downward with respect to the ground.

Meanwhile, the culture plates 120 are arranged at an angle with respect to the ground, and neighboring culture plates 120 spaced apart in the width direction of the case 110 are arranged at an angle in different directions. Accordingly, the culture plates 120 may be arranged in an approximately V shape. In this way, when the culture plates 120 are arranged inclined in different directions, not only can water be easily discharged, but also water can be supplied uniformly.

A plurality of water supply pipes 130 are installed inside the case 110, and the water supply pipes 130 are disposed adjacent to the side end of the culture plate 120, but are located between the culture plates 120 spaced apart from each other up and down. The water supply pipe 130 is connected to the sterilizing water generator 300 and receives plasma sterilizing water containing hydroxyl and hypochlorous acid from the sterilizing water generator 300.

The first spray nozzle 131 and the second spray nozzle 132 are arranged to be spaced apart in the width direction with the culture plate interposed therebetween. The first spray nozzle 131 is connected to the water supply pipe 130 on one side and sprays water from the top of one side of the culture plate, and the second spray nozzle 132 is connected to the water supply pipe 130 on the other side and sprays water on the culture plate ( 120) Spray water from the top of the other side.

The plurality of first spray nozzles 131 are arranged to be spaced apart in the height direction of the case 110, and the plurality of second spray nozzles 132 are also arranged to be spaced apart in the height direction of the case 110. The first spray nozzle 131 may spray water slanted upward with respect to the ground, and the second spray nozzle 132 may spray water slanted downward with respect to the ground. To this end, the first spray nozzle 131 may protrude to the upper part of the water supply pipe 130, and the second spray nozzle 132 may protrude to the lower part of the water supply pipe 130.

In this way, the first spray nozzle 131 sprays water slanted upward with respect to the ground, and the second spray nozzle 132 sprays water slanted downward with respect to the ground, so that the sprayed water does not collide with each other and is sprayed on the culture plate ( 120), water can be sprayed efficiently.

Additionally, the first spray nozzle 131 and the second spray nozzle 132, which are spaced apart in the height direction, may spray water sequentially. For example, when the first spray nozzle 131 and the second spray nozzle 132 located at the top in the height direction spray water, the first spray nozzle 131 and the second spray nozzle 132 located below stops working. In addition, when spraying at the top is completed, only the first spray nozzle 131 and the second spray nozzle 132 located at the top proceed with spraying. If spraying proceeds sequentially in this way, sufficient sterilizing water can be uniformly provided even with low water pressure.

As shown in FIG. 3, a continuous rail 151 is installed on the ceiling of the case 110, and a transport pillar 152 is installed on the rail 151 and moves along the rail 151. The transport pillar 152 is made of a rod extending in the height direction, and the transport pillar 152 is inserted into the rail. A roller for movement may be installed on the upper part of the transfer pillar 152. The transfer pillar 152 extends in the height direction of the case 110, and the lower end of the transfer pillar 152 is installed to be spaced apart from the bottom of the case 110. The transport pillar 152 is installed on the rail 151 in a hanging structure, and thus it is possible to prevent the transport pillar 152 from being disturbed by the lower structure when it moves.

In addition, a wire 153 is coupled to the transfer pillar 152, and the wire 153 is installed to extend in the longitudinal direction of the rail 151. Additionally, a winder 154 is connected to the wire 153, and the winder 154 may be fixedly installed on the rail 151. Accordingly, when the winder 154 pulls the wire 153, the transfer pillar 152 moves forward and pushes the culture plate 120 forward, allowing the plurality of culture plates 120 to be easily discharged.

An air circulation pipe 230 for circulating air is connected to the incubator 100, and a ventilator 210 for circulating air may be installed in the air circulation pipe 230. Additionally, an exhaust pipe 291 and an inlet pipe 292 are connected to the air circulation pipe 230 to allow some air to be discharged to the outside or external air to be introduced. Additionally, valves 293 and 294 that control the inflow and outflow of air may be installed in the air circulation pipe 230.

Additionally, an ozone gas supply unit 250 that supplies ozone gas into the air is connected to the air circulation pipe 230. Ozone gas can be mixed with air and supplied into the incubator 100. For this purpose, a swirler 251 may be installed in the air circulation pipe 230. The swirler 251 includes rotating blades and uniformly mixes ozone gas and air. Ozone gas may be sprayed periodically.

The ozone gas supply unit 250 can remove harmful bacteria by maintaining the ozone concentration inside the incubator 100 at 10 ppmv to 50 ppmv for 5 to 30 minutes. Ozone gas may be sprayed at intervals of 1 to 2 hours. Excessive supply of ozone gas can reduce the growth of plants, so the supply of ozone gas must be done periodically and there must be a rest period in which the supply of ozone gas is stopped.

As described above, according to the first embodiment, ozone gas is mixed with air and supplied into the incubator 100, thereby preventing harmful bacteria such as mold from occurring inside the incubator 100. In addition, since plasma hydrogen water generated by underwater discharge is supplied to the culture plate 120, not only can bacteria be killed, but also nutritional components such as GABA, policosanol, and saponarin in barley sprouts can be increased. When the content of glutamic acid and alanine in barley sprouts increases due to plasma hydrogen water, glutamic acid decarboxylase is activated and GABA production increases. In addition, plasma hydrogen water has particles atomized compared to regular water, increasing moisture absorption and improving plant growth speed by 23%. By ionizing nitrogen in the air, fertilizer usage can also be reduced.

Hereinafter, a hydroponic cultivation device according to a second embodiment of the present invention will be described. Figure 5 is a diagram showing a support and a culture plate according to a second embodiment of the present invention.

Referring to FIG. 5 , the culture plate 120 installed inside the incubator 100 may be made of rock wool. If the culture plate 120 is made of rock wool, the occurrence of harmful bacteria such as mold on the culture plate 120 can be suppressed.

Inside the incubator 100, a hypochlorous acid water injection unit 160 may be installed to spray hypochlorous acid water into the air inside the incubator 100. The hypochlorous acid water injection unit 160 mixes chlorine gas generated by electrolysis of diluted hydrochloric acid with water to produce hypochlorous acid water, and sprays the prepared hypochlorous acid water into the air inside the incubator 100 to inject it into the air. Removes harmful bacteria such as mold spores. The hypochlorous acid water spray unit 160 may be installed on the wall and ceiling of the incubator 100.

Meanwhile, the air circulation pipe 230 includes a transparent pipe portion 231 made of a transparent material, and an ultraviolet sterilizing unit 260 that irradiates ultraviolet rays into the transparent pipe portion 231 may be installed in the transparent pipe portion 231. . Here, the ultraviolet sterilizing unit 260 may be formed in a tube shape surrounding the transparent tube unit 231. Accordingly, ultraviolet rays are irradiated to the air moving along the transparent pipe portion 231, thereby sterilizing spores contained in the air.

The sterilizing water generator 301 further includes an electrolyzer 310 containing water, electrodes 320 inserted into the electrolyzer 310, an ultrasonic treatment unit 370, a microbubble supply unit 340, and an ultraviolet irradiation unit 330. can do.

The electrolyzer 310 has a platinum-coated structure. When the electrolyzer 310 is coated with platinum, hydrogen water can be more easily generated. The electrodes 320 are formed with a plurality of slits, and when slits are formed in the electrodes, reaction efficiency can be improved. The sterilizing water generator 300 supplies water to the incubator 100 through the water supply pipe 350.

The ultrasonic processor 370 promotes the generation of hydroxyl radicals by applying ultrasonic waves to the sterilizing water. When ultrasonic waves are applied to sterilizing water, hydrogen peroxide is converted into hydroxyl radicals, thereby improving sterilizing performance.

The microbubble supply unit 340 injects microbubbles into the sterilizing water and can form microbubbles by passing air through a porous plate with fine pores. When microbubbles are injected into sterilizing water, the reactivity of hydroxyl radicals increases, which can further improve sterilizing performance.

The ultraviolet irradiation unit 330 irradiates ultraviolet rays to the sterilizing water generated by the sterilizing water generator 301. The ultraviolet irradiation unit 330 may be installed not only inside the sterilizing water generator 301 but also may be installed to irradiate ultraviolet rays to the moving sterilizing water. When ultraviolet rays are irradiated to electrolyzed sterilizing water, hydroxyl radicals increase and sterilization performance can be further improved.

Above, an embodiment of the present invention has been described, but those skilled in the art can add, change, delete or add components without departing from the spirit of the present invention as set forth in the patent claims. The present invention may be modified and changed in various ways, and this will also be included within the scope of rights of the present invention.

10: Hydroponic cultivation device
100: Incubator
110: case
120: culture plate
130: Water supply pipe
131: first spray nozzle
132: second spray nozzle
141: support
160: Hypochlorous acid water spray unit
210: Ventilator
230: air circulation pipe
231: transparent tube
250: Ozone gas supply unit
260: Ultraviolet sterilization unit
300, 301: Sterilizing water generator
310: electrolyzer
320: electrode
330: Ultraviolet irradiation unit
340: Micro bubble supply unit
370: Ultrasonic processing unit

Claims (7)

A sterilizing water generator that generates sterilizing water by electrolyzing water;
Water is supplied from the sterilizing water generator, a culture plate accommodating plants, a case accommodating the culture plates, a support fixed within the case to support the culture plate, a water supply pipe for supplying water to the culture plate, An incubator connected to a water supply pipe and including a first spray nozzle and a second spray nozzle for spraying water;
an air circulation pipe connected to the incubator to circulate air; and
An exhaust fan connected to the air circulation pipe to circulate air;
Including,
The sterilizing water generator decomposes water molecules into hydrogen ions and oxygen ions and forms hydroxyl groups by underwater plasma discharge,
An ozone gas supply unit is installed in the air circulation pipe to supply ozone gas to suppress the formation of mold,
The sterilizing water generator further includes an electrolytic cell containing water, electrodes installed inside the electrolytic cell, and an ultrasonic processing unit for applying ultrasonic waves to the sterilizing water, wherein the ultrasonic processing unit is installed inside the electrolytic cell to promote the generation of hydroxyl radicals. And
The sterilizing water generator further includes a microbubble supply unit connected to the electrolyzer and injecting microbubbles into the sterilizing water, and the microbubble supply unit is configured to pass air through a porous body to form microbubbles,
A hydroponic cultivation device that suppresses harmful bacteria using an aqua plasma method, wherein the ultrasonic treatment unit and the microbubble supply unit are spaced apart in the height direction of the electrolyzer with the electrodes interposed. According to claim 1,
The air circulation pipe includes a transparent pipe portion made of a transparent material, and the transparent pipe portion is installed with an ultraviolet sterilizing unit that irradiates ultraviolet rays into the transparent pipe portion,
A hydroponic cultivation device that suppresses harmful bacteria using an aqua plasma method, wherein the ultraviolet sterilization unit has a tubular shape surrounding the transparent tubing part. According to clause 2,
A hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method, characterized in that a swirler for mixing ozone gas and air is installed in the air circulation pipe. delete delete According to claim 1,
The sterilizing water generator is a hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method, characterized in that the sterilizing water generator further includes an ultraviolet irradiation unit that irradiates ultraviolet rays to the sterilizing water. According to clause 6,
Inside the incubator, a hypochlorous acid water injection unit is installed to produce hypochlorous acid water by mixing chlorine gas generated by electrolysis of diluted hydrochloric acid with water, and to spray the prepared hypochlorous acid water into the air inside the incubator, A hydroponic cultivation device that suppresses harmful bacteria using the aqua plasma method, wherein the hypochlorous acid water injection unit is installed on the ceiling and wall of the incubator.

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