KR20210001509A - CO2 supplying apparatus and method for container-type plant factory using tri-generation - Google Patents

Abstract

The present invention relates to a CO_2 supplying apparatus of a container-type plant factory using a tri-generation technique, and a method thereof. An object of the present invention is to provide the CO_2 supplying apparatus of the container-type plant factor using a tri-generation technique, and the method thereof which enable effective distribution and supply of CO_2 to highly integrated plants in a small space such as a container when a tri-generation system is applied to the container-type plant factory.

Description

CO2 supplying apparatus and method for container-type plant factory using tri-generation}

The present invention relates to an apparatus and method for supplying CO ₂ in a container-type plant factory using the Trizen technique, and more particularly, a Trizen system for producing heating, cooling, and CO ₂ is introduced into the plant factory, but in the Trizen system The present invention relates to an apparatus and method for supplying CO ₂ in a container-type plant factory using the Trigen technique, which enables the generated CO ₂ to be supplied to plants more effectively in a form optimized for the structure of a container-type plant factory.

Gas engine-driven heat pump (GHP) refers to a device that produces cooling and heating using a compressor driven by the power of an internal combustion engine that uses clean low-carbon gas fuel (NG, LPG, synthetic gas). . In general, a very large amount of heat is generated in an internal combustion engine, and therefore, the internal combustion engine is provided with a structure to cool the internal combustion engine by absorbing excess heat while cooling water circulates around the internal combustion engine. At this time, the coolant that has reached a high temperature by absorbing heat returns to the internal combustion engine and discards heat to the outside so that it can absorb heat.This waste heat can be used to perform heating, or a cooling cycle including a heat pump is performed. Cooling can also be performed by using. In addition, since carbon dioxide (CO ₂ ) is included in the exhaust gas generated from the internal combustion engine, it is possible to produce CO ₂ by removing harmful substances and excessive moisture in the exhaust gas.

As such, GHP can produce three types of heating, cooling, and CO ₂ at once, and such a system is called a tri-generation system or a trigen system. An example of such a Trigen system is well disclosed in Korean Patent Registration No. 1569677 ("Trigen system and its control method using high lean combustion", 2015.11.11.). On the other hand, when referring to the Trigen system, it does not necessarily refer to only producing heating, cooling, and CO ₂ using GHP. For example, a generator operated by a gas engine may be used as the central device of the Trizen system. In this case, electricity from a generator, heating from waste heat from a gas engine, and CO ₂ from exhaust gas from a gas engine are produced, thereby forming a Trigen system that produces electricity, heating, and CO ₂ . In this case, it is possible to produce cooling by using electricity generated from the generator. In this case, it can be utilized as a quadruple power generation system that produces electricity, heating, cooling, and CO ₂ .

Meanwhile, the introduction of urban smart farms in the form of direct cultivation of crops by installing greenhouses on the roof of buildings in order to quickly and easily supply fresh crops to people, mainly in large cities in advanced countries such as North America and Europe, is spreading. Plant factory facilities such as urban smart farms and facility gardening require electricity to supply various equipment for crop cultivation, heating and cooling to control the temperature suitable for crop growth, and also to control crop growth. A supply of CO ₂ is needed to facilitate it. That is, it is suitable to apply the above-described triple or quadruple power generation system. In Korea, electricity bills are cheaper than overseas, so it is not necessary to produce electricity from GHP. In case of domestic plant factories, it is very suitable to apply the GHP-based Trigen system that produces heating, cooling, and CO ₂ as described above. Do.

In general, a plant factory consists of a plurality of cabinets arranged by planting plants in long pots arranged on a plurality of shelves. The space in which these storage cabinets are arranged is isolated from the outside, and lighting, heating, cooling, and CO ₂ are supplied to satisfy the optimal light quantity, temperature, humidity, and air quality conditions for plant growth. As described above, when GHP is introduced into a plant factory, heating, cooling, and CO ₂ can be supplied smoothly, and external electricity can be used for lighting.

However, as described above, since plants are arranged in a highly integrated form, if CO ₂ is simply supplied from one outlet, the concentration of CO _{2 in the} plant factory space becomes non-uniform, thus maximizing the plant growth efficiency. Can't. Therefore, when applying the Trigen system to a plant factory, there is a need for a technology that can effectively supply the CO ₂ generated from the Trigen system to the plant.

In addition, the plant factory is also made in various forms, such as in the form of an agricultural complex or a single floor of a large building, but in some cases it is made as small as a container that accommodates a relatively small number of pots. When a CO ₂ supply device is separately installed in a plant factory, large plant factories and small plant factories (such as container type) have differences in the size of the space that can be installed, and the density of CO ₂ depending on the location due to the difference in space size. There are many differences in environmental conditions, such as differences in the degree of unbalance.

1. Korean Patent Registration No. 1569677 ("Trigen system using high lean combustion and its control method", 2015.11.11.)

Accordingly, the present invention was conceived to solve the problems of the prior art as described above, and an object of the present invention is to effectively reduce CO2 to plants highly integrated in a small space such as a container when the Trigen system is applied to a container-type plant factory. _{It is} to provide an apparatus and method for supplying CO ₂ in a container-type plant factory using the Trigen technique, which enables the supply of ₂ by distribution.

The CO ₂ supply device 100 of a container-type plant factory using the Trizen technique of the present invention for achieving the above object is extended in one direction and a plurality of pots 550 in which a plurality of plants are planted along the extending direction It is installed in a container-type plant factory in which the pots are accommodated in a container 1000 that forms a space that is isolated from the outside, and produced from the Trigen system 200 for producing CO ₂ and discharging it to the outlet 210. In the CO ₂ supply device 100 of a container-type plant factory that distributes and supplies CO ₂ to plants, it is made in the form of a pipe in communication with the outlet 210 so that the CO ₂ is circulated inside, and the pollen 550 A main pipe 110 in which a plurality of corresponding branches are formed; One end is in the form of a pipe in communication with the branch part and a plurality of supply holes 125 are formed to discharge and supply CO ₂ toward the plant, and extend in the extending direction of the flower pot 550 to the edge of the container 1000 A distribution unit including a supply pipe 120 disposed in the; It may include. In this case, the distribution unit may further include a supply fan 130 formed on the branch side and supplied by blowing CO ₂ toward the plant.

In addition, the distribution unit, a plurality of the supply holes 125 are all arranged at equal intervals, the diameter of the main pipe 110 is D, the diameter of the supply pipe 120 is d, the supply pipe 120 When the number is N, the diameter of the supply holes 125 is a, and the number of supply holes 125 is n, it may be formed to satisfy the following equation.

In addition, in the CO ₂ supply device 100 of the container-type plant factory, the plurality of supply holes 125 formed in each of the supply pipes 120 are all arranged at equal intervals, each of the supply pipes 120 Positions in which the plurality of supply holes 125 formed in are formed may be arranged to be shifted from each other.

In addition, the supply hole 125 is one supply hole 125 per supply position P when the width or height of the container 1000 is less than a predetermined reference at one supply position P When the supply pipe 120 is disposed in the diagonal direction of the container 1000 and the width or height of the container 1000 is greater than or equal to a predetermined standard, a pair of the supply per supply position P The hole 125 may be arranged to be widened by a predetermined angle inside the container 1000 of the supply pipe 120 in a diagonal direction.

In addition, the CO ₂ supply device 100 of the container-type plant factory is provided at the connection portion of the main pipe 110 and the supply pipe 120 to control the flow rate of CO ₂ circulating through the supply pipe 120. A plurality of supply valves 140; It may further include.

In addition, the CO ₂ supply device 100 of the container-type plant factory includes a plurality of concentration sensors 150 disposed between the supply pipe 120 and the plant to measure the CO ₂ concentration; It may further include.

In addition, CO ₂ supply method of a container-type plant factory using Tra Now techniques of the present invention, in the CO ₂ supply method of a container-type plant factory using the container CO ₂ supply of the type plant factory device 100 as described above , Distributing the CO ₂ circulated through the main pipe 110 to a plurality of the distribution units; Supplying the CO ₂ distributed to the distribution unit to the plant; Measuring the concentration of CO ₂ at a plurality of measurement locations (S) by a plurality of the concentration sensors 150; When the measured CO ₂ concentration deviates from a predetermined standard, the supply valve 140 or the supply fan 130 is operated so that the amount of CO ₂ supplied to the supply position P close to the measurement position S increases or decreases. step; It may include.

According to the present invention, when the Trigen system is applied to a plant factory, there is an effect that CO ₂ can be effectively distributed and supplied to highly integrated plants. More specifically, a storage cabinet formed by planting plants in long pots arranged on a plurality of shelves is arranged in a form in which a plurality of cabinets are arranged, but for a plant factory formed in a container type and having a small space, plants are arranged. It is extended in the extension direction of the potted plant and sprays CO ₂ toward the plant using a pipe or fan provided at each corner of the container, but the CO ₂ injection location is appropriately optimized in consideration of the distance from the GHP outlet. By making it possible to supply CO ₂ at a uniform concentration to plants at any location in the container-type plant factory, it has the effect of supplying CO ₂ .

Of course, according to this effect, according to the present invention, there is an effect of maximizing the growth efficiency of plants in the plant factory. On the flip side, this means that the use of CO ₂ in the Trigen system that produces heating, cooling and CO ₂ can be optimized, resulting in the maximization of the efficiency of the Trigen system itself.

1 is a schematic diagram of a container-type plant factory.
Figure 2 is an embodiment of the CO ₂ supply device of the present invention.
3 is a first embodiment of the distribution unit.
4 is a second embodiment of the distribution unit.
Figure 5 is an embodiment of the arrangement of pots and supply pipes in the container.
6 is a detailed view of the lower surface of the supply pipe.
7 is an exemplary arrangement of supply holes.
8 is a detailed cross-sectional view of the supply pipe.

Hereinafter, an apparatus and method for supplying CO ₂ in a container-type plant factory using the Trigen technique according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

1 schematically shows the shape of a container-type plant factory. As shown, in the plant factory, a plurality of storage cabinets 500 formed by planting plants in long pots 550 disposed on a plurality of shelves 510 are arranged. As shown, the flower pot 550 extends in one direction and has a shape in which a plurality of plants are planted along the extending direction. In addition, in the storage cabinet 500, a lighting 520 for supplying light is installed so that plants can grow smoothly. In the case of hydroponic cultivation, since the plants are basically planted in water, various devices for managing water quality may be further provided, and in the case of soil cultivation, a nozzle for watering the plants may be further installed. A typical plant factory includes the above-described configurations. In particular, a container-type plant factory is made by receiving the pots 550 in a container 1000 forming a space isolated from the outside.

As described above, the plant factory space needs to meet environmental conditions such as temperature, humidity, and CO ₂ concentration optimized for plant growth, and for this, heating, cooling, and CO ₂ need to be supplied. At this time, the GHP-based Trigen system that produces heating, cooling, and CO ₂ is very suitable for introduction into plant factories.

[1] CO of the container-type plant factory of the present invention ₂ Basic configuration of supply device

2 is a schematic diagram of the CO ₂ supply device of the present invention, as described above, of the present invention for distributing and supplying CO ₂ to the plant from the Trigen system 200 for producing CO ₂ and discharging it to the outlet 210 It schematically shows the CO ₂ supply device 100 of the container-type plant factory. As shown, the CO ₂ supply device 100 of the container-type plant factory of the present invention includes a distribution unit including a main pipe 110 and a supply pipe 120 having a supply hole 125 formed therein. The distribution unit may further include a supply fan 130. In addition, the CO ₂ supply device 1000 of the container-type plant factory may further include a supply valve 140 and a concentration sensor 150 in addition to this.

The main pipe 110 is formed in the form of a pipe in communication with the outlet 210 so that CO ₂ is circulated therein, and a plurality of branch portions corresponding to the flower pots 550 are formed. In addition to CO ₂ , the exhaust gas discharged from the Trigen system 200 further contains harmful substances and excessive moisture, but by passing a catalyst for removing harmful substances and a desiccant for removing moisture, the outlet ( 210) can be clean air with only a high concentration of CO ₂ .

The distribution unit basically includes the supply pipe 120 and may further include a supply fan 130. The specific configuration of the distribution unit will be described in more detail later.

The supply pipe 120 may be connected to the branch, that is, a plurality of the main pipes 110 may be formed, and at least one may be disposed for each of the flower pots 550 as shown. The supply pipe 120 has one end in communication with the branch and has a pipe shape in which a plurality of supply holes 125 are formed. More specifically, the supply pipe 120 has one end in the form of a pipe forming a connection end 120a communicating with the main pipe 110 and the other end being closed to form a closed end 120b. Accordingly, the CO ₂ circulating in the main pipe 110 flows into the supply pipe 120 through the connection end 120a and can be distributed. In addition, CO ₂ can be discharged from the supply pipe 120 through the supply hole 125 formed in the supply pipe 120 to be supplied to the plant. The supply pipe 120 extends in the extending direction of the flower pot 550 and is disposed at the corner of the container 1000. According to this arrangement, the entire interior space of the container 1000 containing the plant is CO ₂ Can be supplied naturally and smoothly.

The supply fan 130 is formed on the branch side and serves to supply the CO ₂ by blowing it toward the plant. When the supply fan 130 is installed together with the supply pipe 120, the concentration according to the position of the CO ₂ discharged from the supply pipe 120 is appropriately adjusted by blowing of the supply fan 130 It can also serve as a giving. The role of the supply fan 130 will be described in more detail later.

A summary of the process of supplying CO2 by the CO ₂ supply device 100 of the container-type plant factory configured as described above is as follows. First, the CO ₂ circulated through the main pipe 110 is distributed to the plurality of distribution units. Next, CO ₂ is supplied to the plant by the supply pipe 120 or the supply fan 130.

Conventionally, when the CO ₂ discharged from the Trigen system 200 is supplied to a plant factory, a method of supplying the entire space through a device such as an outlet installed on the wall has been used. However, in this case, there is a problem that the concentration of CO ₂ is high near the outlet, whereas the concentration of CO ₂ decreases as the distance from the outlet increases. In addition, there is a problem in that the concentration imbalance problem is further aggravated by the plants disposed near the outlet consume CO ₂ .

However, the CO ₂ supply device 100 of the container-type plant factory of the present invention does not directly discharge the CO ₂ discharged from the Trizen system 200 into the plant factory space as described above, but the CO ₂ It is made to distribute in an appropriate path through the pipe 110, but uniformly distribute the entire inner space of the container 1000 through the plurality of distribution units in communication with the main pipe 110. In this way, as CO ₂ is evenly distributed throughout the interior space of the container 1000 by the distribution unit, regardless of how far and close to the outlet 210 the plant location accommodated in the container 1000 is In other words, wherever the plant is, it is possible to uniformly receive CO ₂ .

2 and 3 show several embodiments of the distribution unit. Each of them will be described in more detail as follows.

3 is a first embodiment of the distribution unit, in which the distribution unit includes only the supply pipe 120. As described above, a plurality of the supply holes 125 are formed in the supply pipe 120, so that the CO ₂ circulating in the supply pipe 120 is naturally discharged through the supply hole 125. I can. At this time, since the supply pipe 120 extends in the extending direction of the flower pot 550, CO ₂ can be uniformly discharged in the extending direction of the flower pot 550. In addition, since the supply pipe 1000 is disposed at each of the four corners of the container 1000 having a rectangular parallelepiped shape, it is possible to very uniformly supply CO ₂ to the entire inner space of the container 1000.

4 is a second embodiment of the distribution unit, in which the distribution unit includes the supply pipe 120 as well as the supply fan 130. The supply fan 130 not only serves to uniformly distribute CO ₂ , but also serves to supply adequate wind to plants. Proper wind is required for the smooth growth of plants, and the strength of the wind is a factor that affects the uniform distribution of CO ₂ , moisture retention, and opening of the pores of the plant. If the pores of the plant are properly opened, the amount of exchange of oxygen, carbon dioxide, moisture, etc. increases, which is helpful for growth, but if the pores of the plant are opened excessively, more moisture escaping into the pores than the moisture sucked from the root causes dehydration. It is necessary to properly adjust the intensity of In addition, direct winds should be avoided as plants directly hit the wind, which adversely affects the growth and reduces the height of the plants. In consideration of this point, it is preferable that the wind speed of the wind blown from the supply fan 130 is about 1 to 3 m/s. At this time, if the length of the flower pot 550 is quite long, it may be difficult to blow out CO ₂ to the end, and in this case, it is necessary to additionally install the supply fan 130.

In addition, when the supply fan 130 is further installed in the supply pipe 120 as described above, the CO ₂ can be more evenly distributed by using the supply fan 130. More specifically, it is as follows. In supplying CO ₂ to the plant using the supply pipe 120 as described above, ideally, CO ₂ should be uniformly supplied from the connection end 120a to the closed end 120b, but in reality As the pressure drop occurs while proceeding from the connection end 120a to the closed end 120b, the CO ₂ flow rate at the side of the closed end 120b may be partially reduced. In addition, as CO ₂ exits from the supply hole 125 near the connection end 120a in advance, the tendency for the CO ₂ flow rate to decrease toward the closed end 120b becomes stronger. That is, even if CO ₂ is supplied to the plant using the supply pipe 120, the problem of concentration non-uniformity in which the concentration of CO ₂ is higher in the connection end 120a than the closed end 120b is still slightly Can remain. At this time, the supply fan 130 blows air having a high CO ₂ concentration from the connection end 120a to the closed end 120b, so that this concentration non-uniformity problem can be greatly alleviated. That is, the supply fan 130 is disposed on the connection end 120a and blows toward the closed end 120b to control the concentration of CO ₂ for each location. In addition, as described above, by supplying wind to the plants using the supply fan 130, it is of course possible to further affect plant growth promotion, such as maintaining moisture and expanding pores.

[2] CO of the container-type plant factory of the present invention ₂ Additional configuration of the supply device

As described above, the CO ₂ supply device 100 of the container-type plant factory may further include a supply valve 140 and a concentration sensor 150, thereby performing more precise environmental condition control. This will be described in detail as follows.

The supply valve 140 is provided at a connection portion between the main pipe 110 and the supply pipe 120 and serves to adjust the flow rate of CO ₂ circulating through the supply pipe 120. For example, when the concentration of CO ₂ is not as high as necessary, the flow rate of CO ₂ supplied to the plant may be increased by opening the supply valve 140 further, and when the concentration of CO ₂ is excessively increased than necessary, the supply valve ( 140) by giving a may be further reduced by closing the CO ₂ flow rate to be supplied to the plant.

The concentration sensor 150 is disposed between the supply pipe 120 and the plant to measure the CO ₂ concentration. By controlling the degree of opening and closing of the supply valve 140 and the degree of blowing of the supply fan 130 described above according to the concentration of CO ₂ measured by the concentration sensor 150, the CO ₂ concentration condition around the plant is always optimized. You can keep it.

When the supply valve 140 and the concentration sensor 150 are further provided, the CO ₂ supply device 100 of the container-type plant factory may operate as follows. First, the concentration of CO ₂ is measured at a plurality of measurement locations (S) by the plurality of concentration sensors 150. Next, when the measured CO ₂ concentration deviates from a predetermined standard, the supply valve 140 or the supply fan 130 so that the amount of CO ₂ supplied to the supply position P close to the measurement position S increases or decreases. This works. For example, if the concentration of CO ₂ measured at the measurement locations (S) formed throughout a single flowerpot 550 is lower than a predetermined reference, it is provided in the supply pipe 120 corresponding to the corresponding flowerpot 550 It can be operated in a way to further open the supplied valve 140. In other cases, for example side said connection ends (120a) in which one of the pots 550, as previously described the CO ₂ concentration is appropriate or slightly excessive one said closed end (120b) p CO ₂ concentration is below one, the pollen ( By blowing air from the supply fan 130 corresponding to 550), air having a high concentration of CO ₂ may be blown toward the closed end 120b.

[3] Detailed configuration of supply pipe and supply hole

5 shows an example of arrangement of a flower pot and a supply pipe in a container. As described above, the supply pipe 120 included in the distribution unit is installed at every four corners of the container 1000 and extends parallel to the extending direction of the flower pot 550. In this case, the flower pot 550 may be provided with only one row in the container 1000 as shown in FIG. 5(A), or may be provided with a plurality of rows as shown in FIG. 5(B). have. The container-type plant factory has a size much smaller than that of a conventional plant factory. In general, the length of the container is about 10 m, and the width or height is smaller than that. Therefore, it is not necessary to make the flower pot 550 generate too much heat, and also, the supply pipe 120 does not need to be installed in more than four corners.

6 is a detailed view of the bottom surface of the CO ₂ supply pipe. 6 is a cross-sectional view taken vertically with respect to the extending direction of the main pipe 110, that is, a cross-section AA′ in FIG. 2.

The main pipe 110 is preferably made able to be a sufficiently large amount of CO ₂ flow to better distribute the CO ₂ to a plurality of the supply pipe 120. In consideration of this point, it is preferable that the main pipe 110 has a larger diameter than the supply pipe 120.

On the other hand, if the diameter of the supply hole 125 is too large, too much CO ₂ is discharged from the side close to the connection end 120a, and thus there is a concern that the flow rate of CO ₂ flowing to the closed end 120b is insufficient. In addition, when the diameter of the supply hole 125 is too large compared to the diameter of the supply pipe 120, the rigidity of the supply pipe 120 may be weakened. On the contrary, if the diameter of the supply hole 125 is too small, there is a problem that a sufficient amount of CO ₂ cannot be discharged.

In addition, as shown in FIG. 6, a plurality of the supply holes 125 are all arranged at the same interval in the supply pipe 120. At this time, the degree of uniformity of the CO ₂ concentration around the supply location (P) varies depending on how densely the supply holes 125 are arranged, and the number of the supply holes 125 is a design that should be considered very important. Element. In addition, like the number of supply holes 125 formed per one supply pipe 120, the number of supply pipes 120 connected per one main pipe 110 should also be considered important. to be.

In order to supply CO ₂ smoothly, the diameter and number of the main pipe 110, the supply pipe 120, and the supply hole 125 must be designed in accordance with each other. 6, the diameter of the main pipe 110 is D, the diameter of the supply pipe 120 is d, the number of the supply pipes 120 (per one of the main pipes 110) is N, and the When the diameter of the supply hole 125 is a and the number of supply holes 125 is n (per one supply pipe 120), the main pipe 110, the supply pipe 120, and the supply It is preferable to satisfy all of the following Equations 1 and 2 between the diameter and the number of holes 125.

… (식 1)

… (Equation 1)

… (식 2)

… (Equation 2)

Equation 1 relates to the relationship between the main pipe 110 and the supply pipe 120, wherein the cross-sectional area (πD ² /4) of the main pipe 110 is a plurality of (N) of the supply pipe 120 It must be greater than the sum of the cross-sectional areas (πd ² /4) (N*πD ² /4). If Equation 1 is not satisfied, the CO ₂ circulating through the main pipe 110 is not sufficiently uniformly distributed to the plurality of supply pipes 120.

Equation 2 relates to the relationship between the supply pipe 120 and the supply hole 125. Similar to Equation 1, the cross-sectional area (πd ² /4) of the supply pipe 120 is a plurality of (n) That is, it should be larger than the sum (n*πD ² /4) of the areas (πa ² /4) of the supply hole 125. When Equation 2 is not satisfied, as in Equation 1, CO ₂ circulating through the supply pipe 120 is not sufficiently uniformly distributed to the plurality of supply holes 125.

Here, the values of N and n are values that can be naturally predetermined according to the size of the plant plant and the number of potted plants arranged in the plant plant. At this time, the values of D, d, and a that can satisfy Equations 1 and 2 can be very diverse. However, when considering practical problems such as actual installation, the selection of D or d as the minimum value that satisfies the above equation can prevent the size from increasing indefinitely.

7 shows an exemplary arrangement of supply holes. As described above, the plurality of supply holes 125 are all arranged at equal intervals within the range from the connection end 120a to the closed end 120b. In this case, when the supply pipe 120 is manufactured, it is only necessary to form the supply holes 125 at equal intervals, so if the supply pipe 120 is manufactured in advance for a very long time, it is cut to an appropriate length as desired and used. Bar, there is an advantage of very high manufacturing ease.

At this time, a plurality of the supply holes 125 formed in each of the supply pipes 120 may be arranged at different intervals, but when considering the ease of manufacture or control, the supply holes 125 formed in each of the supply pipes 120 It is preferable that the plurality of supply holes 125 are all arranged at the same interval. Meanwhile, it is preferable that the plurality of supply holes 125 formed in each of the supply pipes 120 are disposed so that their positions are shifted from each other, as shown in FIG. 10B. Since the supply hole 125 is disposed as shown in FIG. 10B, the distribution of CO _{2 in} the container 1000 may be more uniform.

8 shows a detailed cross-sectional view of a CO ₂ supply pipe. When the width or height of the container 1000 is less than a predetermined standard at one supply position P, as shown in FIG. 8(A), one supply hole 125 is provided per supply position P. The supply hole 125 may be arranged diagonally inside the container 1000 of the supply pipe 120. Alternatively, as shown in FIG. 8(B), when the width or height of the container 1000 is greater than or equal to a predetermined reference, a pair of the supply holes 125 per supply position P The container 1000 may be arranged to open at a predetermined angle inside the diagonal direction.

If the width or height of the container 1000 is narrow, the supply hole 125 alone can adequately supply CO ₂ to the entire inner space of the container 1000, but the width or height of the container 1000 is wide. Plants disposed on the top or bottom of the container 1000 may not receive a sufficient amount of CO ₂ . However, if the CO ₂ discharge direction is widened by forming two supply holes 125 at appropriate intervals by forming two supply holes 125 as shown in FIG. 8(B), plants disposed on the top or bottom of the container 1000 Also, a sufficient amount of CO ₂ can be supplied smoothly. At this time, it is preferable that the angle between the pair of supply holes 125 is formed within the range of 60 degrees to 120 degrees.

The present invention is not limited to the above-described embodiments, and the scope of application thereof is diverse, as well as anyone with ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible.

100: CO ₂ supply device of container-type plant factory
1000: container
110: main pipe 120: supply pipe
125: supply hole 130: supply fan
140: supply valve 150: concentration sensor
200: Trigen system 210: outlet
500: cabinet 510: shelf
520: lighting 550: flower pot

Claims (8)

And extending in the one direction comprises a plurality of pots with a plurality of plants planted in accordance with the extension direction and is disposed in a container type plant factory made is accommodated to the pots in a container to form a space that is isolated from the outside, the outlet to produce CO ₂ In the CO ₂ supply device of a container-type plant factory that distributes and supplies CO ₂ to the plants from the discharged Trigen system,
A main pipe in the form of a pipe in communication with the outlet, through which CO ₂ is circulated, and a plurality of branch portions corresponding to the flower pots are formed;
One end is in the form of a pipe in communication with the branch part and a plurality of supply holes are formed to discharge and supply CO ₂ toward the plant, and a supply pipe extending in the extending direction of the potted plant and disposed at the corner of the container Distribution;
CO ₂ supply device of a container-type plant factory comprising a.
The method of claim 1, wherein the distribution unit,
CO ₂ supply device of a container-type plant factory, characterized in that it further comprises a supply fan formed on the side of the branch to supply the CO ₂ by blowing toward the plant.
The method of claim 1, wherein the distribution unit,
All of the plurality of supply holes are arranged at the same interval,
When the diameter of the main pipe is D, the diameter of the supply pipe is d, the number of supply pipes is N, the diameter of the supply hole is a, and the number of supply holes is n,
CO ₂ supply device of a container-type plant factory, characterized in that formed to satisfy the following equation.

The method of claim 1, wherein the CO ₂ supply device of the container-type plant factory,
The plurality of supply holes formed in each of the supply pipes are all arranged at the same interval,
CO ₂ supply device of a container-type plant factory, characterized in that the positions at which the plurality of supply holes formed in each of the supply pipes are formed are arranged to be shifted from each other.
The method of claim 1, wherein the supply hole,
At one supply location,
When the width or height of the container is less than a predetermined standard, one supply hole per one supply position is disposed diagonally inside the container of the supply pipe,
Container type, characterized in that when the width or height of the container is greater than or equal to a predetermined standard, a pair of the supply holes per supply position are arranged to open by a predetermined angle in the diagonal direction of the container of the supply pipe Plant factory CO ₂ supply system.
The method of claim 1, wherein the CO ₂ supply device of the container-type plant factory,
A plurality of supply valves provided at a connection portion between the main pipe and the supply pipe to control a flow rate of CO ₂ circulating through the supply pipe;
CO ₂ supply device of a container-type plant factory, characterized in that it further comprises.
The method of claim 1, wherein the CO ₂ supply device of the container-type plant factory,
A plurality of concentration sensors disposed between the supply pipe and the plant to measure the concentration of CO ₂ ;
CO ₂ supply device of a container-type plant factory, characterized in that it further comprises.
In the CO ₂ supply method of a container-type plant factory using the CO ₂ supply device of the container-type plant factory according to claim 1,
The CO ₂ supply device of the container-type plant factory,
A plurality of supply valves provided at a connection portion between the main pipe and the supply pipe to control a flow rate of CO ₂ circulating through the supply pipe;
A plurality of concentration sensors disposed between the supply pipe and the plant to measure the concentration of CO ₂ ;
It further includes,
The CO ₂ supply method of the container-type plant factory,
Distributing the CO ₂ distributed to the main pipe to a plurality of the distribution units;
Supplying the CO ₂ distributed to the distribution unit to the plant;
Measuring the concentration of CO ₂ at a plurality of measurement locations by a plurality of the concentration sensors;
Operating the supply valve or the supply fan so that when the measured CO ₂ concentration deviates from a predetermined standard, the supply amount of CO ₂ to a supply position close to the measurement position is increased or decreased;
CO ₂ supply method of a container-type plant factory comprising a.

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