KR102436676B1 - Mobile closed plant factory system - Google Patents

Abstract

Existing plant factories or closed plant factories have a large amount of nutrient solution used in trays when plants are grown on trays in the conventional way, and the problem of labor intensive work such as planting plants in the trays and moving the trays there has been
The present invention is a closed plant factory system capable of temperature and humidity control in order to solve the above problems, in a closed plant factory system, characterized in that it is equipped with a vertical plant cultivation box for fixing plants and supplying nutrient solution to plants provide the system.
By the configuration as described above, there is an effect of growing crops more densely in the same space as compared to the conventional tray method. This is because the conventional tray method requires a space for movement of the worker and a space for mounting the tray, so there is a problem of dense densification. Space is also effective.

Description

Mobile closed plant factory system{.}

The present invention relates to a plant factory. More specifically, it is a technology related to a closed plant factory system called 'Vertical Farm' or 'Urban Farming' among plant factories.

In the prior art prior to the present invention, an unmanned crop cultivation system using a refrigeration container is disclosed. A refrigerating container housing including a heat-retaining insulation layer on the inside of the metal outer frame, a sealed accommodation space provided therein, and a freezing control unit controlling the temperature through a refrigerant therein, and a freezing control unit on the outside of the refrigerating container housing A control module electrically coupled to the control panel of the control module to control the temperature, air, and humidity environments inside the container, the cultivation module including a cultivation stent of a multi-stage structure and a growth medium arranged in a plurality of stacks on the stent, which is disposed in the accommodation space, A sensor module including a plurality of sensors for providing measurement information to the control module by measuring temperature, humidity, and acidity and electrical conductivity of the growth medium in the receiving space, and an external user terminal in conjunction with the control module A plant factory control system for applying a refrigeration container including a user terminal for controlling the cultivation environment in the refrigeration container housing through communication is disclosed.

As another prior art, in a closed-type plant factory system, light of a wavelength of 8:1:1 is emitted through an LED lamp. It relates to a cultivation method of spinach comprising irradiating light with a photoperiod of 170-190 μmol·m-2·s-1 and a photoperiod of 14L/10D, wherein the closed plant factory system controls the internal environment at a temperature of 20 to 22 ℃, relative humidity is controlled to 60~80%, and the cultivation method of spinach is to sow spinach in a plug tray containing rock wool pellets, and then plant it at a planting density in a closed plant factory, and to immerse circulation hydroponics A technique is disclosed.

Registered Patent Publication No. 10-1676303 Registered Patent Publication No. 10-1900643

When a plant is grown in an existing tray method in an existing plant factory or a closed plant factory, the amount of nutrient solution used in the tray is large, and the problem is that the worker's hands such as transferring the plant to the tray and moving the tray are very difficult. there has been

The present invention provides a vertical cultivation closed type plant factory in order to solve the above problems.

The problem solving means of the present invention are as follows.

In the closed plant factory system capable of temperature and humidity control, it provides a closed plant factory system, characterized in that it is equipped with a vertical plant bed for fixing plants and supplying nutrient solution to plants.

In addition, the vertical plant cultivation bed, provides a closed plant factory system, characterized in that provided with an upper cultivation bed, a lower cultivation bed, and a vertical cultivation bed connecting the upper cultivation bed and the lower cultivation bed.

The vertical cultivation bed provides a sealed plant factory system, characterized in that a groove is formed vertically on one side, and a medium is provided therein so that a plant can be grown in the groove.

The supply of nutrient solution to the vertical planting box provides a closed plant factory system, characterized in that using 40L per hour at 1.6L per hour.

The present invention has the effect of cultivating crops more densely in the same space as compared to the conventional tray method by the above configuration. The conventional tray method has a problem that dense compaction is difficult because it requires a movement space for the operator and a tray mounting space, but the present invention enables high-density cultivation because plants are grown vertically without a tray holder, and the worker movement space is also effective enough.

1 is a mobile closed plant factory system of the present invention
2 is a photograph of a vertical plant cultivation phase of the present invention
Figure 3 is a side view of the vertical plant cultivation of the present invention
4 is a configuration diagram of a nutrient solution control for cultivation of the present invention;
5 is a picture of piping connection inside the mobile closed plant factory system of the present invention

The present invention is an agricultural system that can mass-produce various high value-added agricultural products indoors by combining cutting-edge high-efficiency energy technology. The modular vertical rack cultivation plant factory plans and produces crops year-round by artificially controlling the environment, such as temperature and humidity, light, water, carbon dioxide concentration, and culture medium, regardless of the weather. Factory-style production is possible through automation regardless of the season or location.

A plant factory is a place that enables a typical low-carbon green business using an indoor plant cultivation system mainly by LED and spray device. In addition, since the vertical factory is a closed indoor environment, it is easy to control the occurrence of pests and diseases, so there is no need to use pesticides, and it is a cutting-edge urban farming method that can obtain organic certification that does not require the use of pesticides or herbicides.

A fixed and open building type plant factory requires securing a building site and a complicated construction and licensing process, but a mobile closed mobile plant factory can be constructed only by reporting the installation of temporary objects in urban chaturi spaces, idle areas, parking lots, and on the roofs of commercial buildings.

Instead of the horizontal shelves used by other vertical farm companies, the plants are planted on vertical poles 3m high with LED lights. All the water and nutrients the plants need are naturally supplied by gravity at the top of the poles, so there is no pump, saving electricity bills. Like a kind of terraced rice paddy, water falls one after the other from top to bottom, so it uses much less water than the conventional horizontal shelf-type structure that uses hydroponics.

Hereinafter, the operation and effect of the present invention will be described with reference to the drawings.

1 shows a closed plant factory system having a vertical cultivation bed of the present invention. A general container can be used, and any shape can be used as long as it is a movable type closed structure.

2 and 3 show a vertical plant growing bed (vertical rack growing bed) of the present invention. The upper cultivation bed 210 , the lower cultivation bed 220 , the vertical cultivation bed 230 and the light source cultivation bed 240 are shown in the plant cultivation bed 200 . 3 is a side view of the vertical planting bed installed. The lower part is made wide by tilting about 5 degrees from the vertical.

4 shows the nutrient solution circulation configuration of the nutrient solution supply unit of the present invention.

The water supplied to the raw water tank is supplied from the water supply pump to the nutrient solution tank, and based on the values measured by the EC sensor and the pH sensor, the nutrient solution in the nutrient solution tank is driven by the fertilizer mixing pump to supply the nutrient solution to the nutrient solution tank. do. The nutrient solution thus prepared is supplied through a solenoid valve to the vertical plant bed through a feeding pump. The nutrient solution supplied in this way is supplied to the upper cultivation bed of the vertical plant bed, and the remaining nutrient solution after absorption by the plant falls to the lower cultivation bed, and is returned to the nutrient solution tank through the nutrient solution return pipe.

In the vertical planting bed of the vertical planting bed, the center of the long side is 2 to 3 cm wide so that the plant can be planted with a square pipe, the center of which is empty, and a groove of 2 to 3 cm in width is formed in the vertical direction, and the inside of the vertical growing bed It is filled with a square pillar-shaped medium (not shown) that allows air and nutrient solution to pass through the Y-shaped medium that also fixes the plant and prevents the supplied nutrient solution from flowing down directly to the lower cultivation bed. have.

Preferably, the medium is cut to a certain height and used, and a horizontal or vertical groove is formed on one side so that a plant can be planted.

The medium itself does not absorb the nutrient solution, and it is characterized in that the surface is not smooth and rough so that the nutrient solution does not immediately flow down. Of course, this rough shape also serves to fix the plant.

Another feature of the present invention is that the problem of the closed plant factory is that the humidity increases inside by circulating a lot of nutrient solution, and there is a problem in that mold and bacteria grow unnecessarily due to the increase in humidity.

In the present invention, the amount of the nutrient solution supplied to the vertical growing box is supplied dropwise at about 1.6 L per hour to solve the above problem. By this drip supply, the humidity inside the closed plant factory system of the present invention is controlled, and the amount of nutrient solution used is 1/10 or less compared to the conventional tray method, so there is a very economical advantage.

In addition, the closed plant factory system of the present invention may further include a carbon dioxide supply to help the normal growth of plants. The concentration of carbon dioxide in the air is about 300 to 400 ppm. However, in the present invention, since plants are grown at high density in a narrow space, carbon dioxide can be further supplied in a range of 2 to 60 times the concentration of carbon dioxide in the air. When the closed plant factory system of the present invention is 10 pyeong, since the same harvest as the open field cultivation area of 600 pyeong can be obtained, more than 60 times more carbon dioxide is required in simple calculation. However, it is appropriate to supply about 20 times the amount of carbon dioxide. If the concentration of carbon dioxide in the air is 10 times or more, it is harmful to the human body, so a carbon dioxide sensor and a proximity sensor for detecting the human body are provided inside the closed plant cultivation system of the present invention, and a carbon dioxide alarm can be sounded when an operator enters.

The present invention provides the following configuration in order to exhibit the above-mentioned effects.

In the closed plant factory system capable of temperature and humidity control, it provides a closed plant factory system, characterized in that it is equipped with a vertical plant bed for fixing plants and supplying nutrient solution to plants.

In addition, the vertical plant cultivation bed, provides a closed plant factory system, characterized in that provided with an upper cultivation bed, a lower cultivation bed, and a vertical cultivation bed connecting the upper cultivation bed and the lower cultivation bed.

The vertical cultivation bed provides a sealed plant factory system, characterized in that a groove is formed vertically on one side, and a medium is provided therein so that a plant can be grown in the groove.

The supply of nutrient solution to the vertical planting box provides a closed plant factory system, characterized in that using 40L per hour at 1.6L per hour.

100: closed plant factory system
200: plant cultivation box
210: upper cultivation bed
220: lower cultivation bed
230: vertical cultivation bed
240: light source cultivation phase
300: nutrient solution supply unit
310: nutrient solution stock solution tank
320: fertilizer mixing pump
330: EC sensor
340: pH sensor
350: water supply pump
360: raw water tank
370: water supply pump
380: flow meter
390: front low valve
399: nutrient solution return pipe

Claims (4)

In a closed plant factory system that can control temperature and humidity configured using a common container,
a vertical plant growing bed for fixing plants and supplying nutrient solution to plants; and
The vertical plant cultivation bed is composed of an upper cultivation bed, a lower cultivation bed, and a vertical cultivation bed connecting the upper cultivation bed and the lower cultivation bed,
The vertical cultivation bed has a groove formed vertically on one side, and a medium is provided therein to fix the plant so that it can be grown in the groove, and the medium is used to fix the nutrient solution so that the supplied nutrient solution does not directly flow down to the lower cultivation bed. The Y-shaped medium that also plays a role is provided as a square column-shaped medium through which air and nutrient solution can pass and is filled inside the vertical cultivation bed, and the medium itself does not absorb the nutrient solution, and the nutrient solution does not flow down directly. The surface is not smooth and is formed rough,
The water supplied to the raw water tank is supplied from the water supply pump to the nutrient solution tank, and based on the values measured by the EC sensor and the pH sensor, the nutrient solution in the nutrient solution tank is driven by the fertilizer mixing pump to supply the nutrient solution to the nutrient solution tank. , When the nutrient solution prepared in this way is supplied through a solenoid valve to the vertical plant growing bed through a feeding pump, the supplied nutrient solution is dripped into the upper growing bed of the vertical plant growing bed, and the remaining nutrient solution after absorption by the plant is grown in the lower part. It falls to the top and is returned to the nutrient solution tank through the nutrient solution return pipe,
The supply of the nutrient solution is 1.6 L per hour and 40 L per day is used to circulate a lot of nutrient solution, which is a problem in closed plant factories.
If the closed plant factory system is 10 pyeong, the same harvest as the 600 pyeong field cultivation area can be obtained, so in order to help the normal growth of plants, a carbon dioxide supply is further provided so that the carbon dioxide concentration in the air is 20 times higher than 300 ~ 400 ppm. Closed plant factory system, characterized in that the supply of carbon.
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