JP6549777B1 - Plant cultivation system - Google Patents

Abstract

[PROBLEMS] To keep a suitable environment in a cultivation room. A plant cultivation system includes a plurality of cultivation racks having a plurality of cultivation shelves. A plurality of intake fans 40 are provided on one longitudinal side of each cultivation shelf, and a plurality of exhaust fans 41 are provided on the other longitudinal side. The plurality of cultivation racks 24 are arranged so that the side surfaces on which the intake fans 40 are arranged face each other and the side surfaces on which the exhaust fans 41 are placed face each other. An intake fan side passage 42 is formed between the cultivation racks 24 in which the side surfaces on which the intake fan 40 is disposed are opposed to each other, and an exhaust fan side passage 43 is formed between the cultivation racks 24 in which the side surfaces on which the exhaust fan 41 is disposed are opposed to each other. Is done. The air in the intake fan side passage 42 is sucked into the cultivation space by the intake fan 40 and the air in the cultivation space is discharged to the exhaust fan side passage 43 by the exhaust fan 41, so that the intake fan from the exhaust fan side passage 43. An airflow flowing into the side passage 42 is generated. [Selection] Figure 4

Description

  The present invention relates to a plant cultivation system.

  BACKGROUND ART A plant cultivation system is conventionally known in which plants such as lettuce are cultivated indoors by arranging a fluorescent lamp or an LED light as a light source in a cultivation shelf.

  In such a plant cultivation system, the temperature and humidity environment in the cultivation shelf changes by heat due to lighting of the light and transpiration by the plant, etc., so that the environment in the cultivation shelf can be controlled to keep the plant growth environment at a certain condition. Desired. Patent Document 1 describes that a fan for air suction is disposed on the side surface of the cultivation shelf to supply a wind of appropriate strength to the space in the cultivation shelf to keep the concentration of oxygen and carbon dioxide constant. It is done.

JP 2017-212955 A

  By the way, in a plant cultivation system, usually, a plurality of cultivation racks are vertically stacked, and a plurality of the laminated cultivation racks are arranged in the cultivation room, but the presence of the laminated cultivation racks causes the air flow in the cultivation room In some cases, it is difficult to keep the temperature and humidity environment in the cultivation room suitable.

  This invention is made in view of such a situation, The objective is to provide the plant cultivation system which can keep the environment inside a cultivation room suitably.

  In order to solve the above-mentioned subject, a plant cultivation system of a mode of the present invention is a plant cultivation system by which a plurality of cultivation racks are arranged in a cultivation room. Each cultivation rack comprises a plurality of cultivation racks in the vertical direction. Reflectors are arranged on the side surfaces of each of the cultivation racks, and the space surrounded by the reflectors is a cultivation space for cultivating plants. A plurality of intake fans are provided on one longitudinal side of each cultivation shelf for sucking outside air into the cultivation space, and the air in the cultivation space is externally provided on the other longitudinal side of each cultivation shelf A plurality of exhaust fans are provided for exhausting. The plurality of cultivation racks are arranged in parallel at a predetermined interval such that the side surfaces on which the intake fans are disposed face each other and the side surfaces on which the exhaust fans are disposed face each other. Between the adjacent cultivation racks in which the side surfaces on which the intake fan is disposed face each other, an intake fan side passage, which is a partially closed space partially opened, is formed. Between the adjacent cultivation racks in which the side surfaces where the exhaust fan is disposed are opposed, an exhaust fan side passage which is a partially closed space which is partially opened is formed. The air in the intake fan-side passage is taken into the cultivation space by the intake fan, and the air in the cultivation space is discharged into the exhaust fan-side passage by the exhaust fan, thereby flowing into the intake fan-side passage from the exhaust fan-side passage Will occur.

  An upper air blocking member may be disposed between the top surface of each growing rack and the ceiling of the growing room to block the flow of air.

  A lower air blocking member may be disposed between the lowermost surface of each cultivation rack and the floor of the cultivation room for blocking the flow of air.

  A passage air blocking member for blocking the flow of air is disposed on one side of the short side of the intake fan side passage and the exhaust fan side passage, and the other side of the short side of the intake fan side passage and the exhaust fan side passage The side of the may be open.

  The air conditioner may further include an air conditioning facility that sucks in air in the exhaust fan side passage, adjusts the temperature and humidity of the air, and sends out the adjusted air into the intake fan side passage.

  The intake fan and the exhaust fan may be configured to be able to adjust the air volume in accordance with the vertical position of the cultivation rack in which they are disposed.

  The intake fan and the exhaust fan increase the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located above, and reduce the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located below. Accordingly, the first operation mode may be provided to generate an upward air flow in the intake fan side passage and a downward air flow in the exhaust fan side passage.

  The intake fan and the exhaust fan reduce the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located above, and increase the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located below. Thus, the second embodiment may have a second operation mode in which the downward air flow is generated in the intake fan side passage and the upward air flow is generated in the exhaust fan side passage.

  It is to be noted that any combination of the above-described constituent elements and one obtained by converting the expression of the present invention among methods, apparatuses, systems, etc. are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the plant cultivation system which can maintain the environment inside a cultivation room suitably can be provided.

It is a schematic plan view of a plant cultivation system concerning an embodiment of the present invention. It is AA schematic sectional drawing of the plant cultivation system shown in FIG. It is a schematic perspective view for demonstrating the structure of a cultivation unit. It is a schematic plan view for demonstrating the flow of the air in the plant cultivation system which concerns on embodiment of this invention. It is AA schematic sectional drawing of the plant cultivation system shown in FIG. It is a schematic sectional drawing of the exhaust fan side channel | path. FIG. 6 is a schematic cross-sectional view of an intake fan side passage. It is a schematic plan view for demonstrating the flow of the air in the plant cultivation system which concerns on embodiment of this invention. It is a schematic sectional drawing for demonstrating the 1st operation mode of an inlet fan and an exhaust fan. It is a schematic sectional drawing for demonstrating the 2nd operation mode of an inlet fan and an exhaust fan. It is a schematic sectional drawing of the exhaust fan side channel | path in the plant cultivation system which concerns on another embodiment of this invention. It is a schematic sectional drawing of the air intake fan side channel | path in the plant cultivation system which concerns on another embodiment of this invention. It is a schematic perspective view of ceiling vicinity of the suction fan side channel in the plant cultivation system which concerns on another embodiment of this invention.

  Hereinafter, a plant cultivation system according to an embodiment of the present invention will be described in detail with reference to the drawings. The drawings are intended to illustrate the positional relationship of the members, and therefore do not necessarily represent the actual dimensional relationship of the members. Further, in the description of the embodiments, the same or corresponding components are denoted by the same reference numerals, and overlapping descriptions will be appropriately omitted.

  FIG. 1 is a schematic plan view of a plant cultivation system 100 according to the present embodiment. FIG. 2: is an AA schematic sectional drawing of the plant cultivation system 100 shown in FIG.

  As shown in FIG. 1 and FIG. 2, the plant cultivation system 100 includes a plurality of cultivation racks 24 disposed in the cultivation room 23. The cultivation room 23 is a semi-closed space in which the influence of the external environment is blocked by a heat insulation panel or the like. In the present embodiment, the cultivation room 23 has a rectangular parallelepiped space, and is divided by the ceiling 30, the floor 31, the front side wall 32, the back side wall 33, the left side wall 34, and the right side wall 35. In the present embodiment, as shown in FIG. 1, the widths of the front side wall 32 and the back side wall 33 are larger than the left side wall 34 and the right side wall 35. In the present embodiment, the plurality of cultivation racks 24 are arranged in parallel in the width direction of the front side wall 32 and the back side wall 33. The longitudinal direction of each cultivation rack 24 is parallel to the width direction of the left side wall 34 and the right side wall 35. The number of cultivation racks 24 is not particularly limited, and may be appropriately set according to the size of the cultivation room 23 (for example, the width of the front side wall 32 and the back side wall 33).

  As shown in FIG. 2, each cultivation rack 24 includes a plurality of cultivation racks 10 stacked in the vertical direction. In the embodiment shown in FIG. 2, the cultivation racks 10 are stacked in 12 stages, but the number of stages of the cultivation racks 10 is not particularly limited, and may be appropriately set according to the ceiling height of the cultivation room 23 or the like.

  As shown in FIG. 1, each cultivation shelf 10 is comprised from the several cultivation unit 26 arrange | positioned in a line in the horizontal direction (horizontal direction). In the embodiment shown in FIG. 1, the cultivation rack 10 is configured of six cultivation units 26, but the number of cultivation units 26 is not particularly limited, and the size of the cultivation room 23 (for example, the left side wall 34 and the right side) It may be set appropriately according to the width of the wall 35).

  FIG. 3 is a schematic perspective view for explaining the configuration of the cultivation unit 26. As shown in FIG. As shown in FIG. 3, the cultivation unit 26 is formed between the upper and lower two shelf boards 11 and 11 ′ of the cultivation rack. The cultivation unit 26 is provided on the lower surface of the nutrient solution pool 12 disposed on the upper surface of the lower shelf 11 ′, the cultivation panel 13 disposed on the nutrient solution pool 12, and the lower surface of the upper shelf 11 A ceiling surface member 14 and a reflecting plate 17 disposed on the longitudinal side of the space between the shelf boards 11 and 11 '.

  The cultivation panel 13 is a foam polystyrene plate in which holes for planting a plurality of plants are formed. The plurality of holes are formed at a predetermined pitch. Depending on the growth process of the plants, culture panels with different pitches may be used. For example, when raising a seedling, a 60 mm pitch raising seedling panel is used, followed by planting on a 200 mm pitch planting panel. The surface of the cultivation panel 13 may be formed to reflect light. For example, the surface material of the cultivation panel 13 may be reflective, the reflective material may be applied to the surface of the cultivation panel 13, or the surface of the cultivation panel 13 may be covered with a reflective plate .

  As shown in FIG. 3, the ceiling surface member 14 is provided with an LED light source 15. The LED light source 15 is an artificial light source for irradiating the plant 22 with light. The LED light source 15 is provided with a red LED light source and a blue LED light source, and alternately performs a bright period in which the red illumination and the blue illumination are simultaneously irradiated and a dark period in which the illumination is not performed. The artificial light source is not limited to the LED light source as long as it is a light source whose light intensity can be adjusted, and may be, for example, an LD (laser diode), a CCFL (cold cathode fluorescent tube), a fluorescent lamp or the like. The surface of the ceiling surface member 14 is formed to reflect light. For example, a reflective material may be applied to the surface of the ceiling surface member 14 or the surface of the ceiling surface member 14 may be covered with a reflective plate.

  The nutrient solution pool 12 is connected to a nutrient solution tank (not shown), and the nutrient solution tank receives a supply of nutrient solution necessary for plant growth.

  As mentioned above, a plurality of cultivation units 26 are arranged in a line to form one cultivation rack 10. The reflecting plate 18 (refer FIG. 1) is arrange | positioned at the transversal direction side surface of the cultivation unit 26 located in the both ends. Therefore, in the cultivation rack 10, the reflectors are disposed on four side surfaces (two opposite longitudinal side surfaces and two opposite short side surfaces). In the cultivation rack 10, a cultivation space 20 is formed in which the cultivation panel 13 is a bottom, the reflection plates 17 and 18 are sides, and the ceiling surface member 14 is a ceiling, and cultivation of the plants 22 is performed in the cultivation space 20.

  As described above, in the plant cultivation system 100 according to the present embodiment, since the reflection plate is disposed on the four sides of the cultivation shelf 10, light energy from the LED light source 15 is unlikely to leak to the outside of the cultivation space 20. Therefore, since the utilization efficiency of light energy increases, the quantity of the light energy supplied to the cultivation space 20 can be suppressed.

  In the present embodiment, each cultivation shelf 10 includes a plurality of intake fans 40 provided on one longitudinal side surface and a plurality of exhaust fans 41 provided on the other longitudinal side surface. The intake fan 40 is a fan for drawing the outside air into the cultivation space 20. The exhaust fan 41 is a fan for exhausting the air in the cultivation space 20 to the outside. The intake fan 40 and the exhaust fan 41 are arranged at predetermined intervals along the longitudinal direction of the cultivation rack 10.

  As shown in FIGS. 1 and 2, the plurality of cultivation racks 24 have predetermined intervals such that the side surfaces on which the intake fan 40 is disposed face each other and the side surfaces on which the exhaust fan 41 is disposed are opposed. Opened and arranged in parallel. Between the adjacent cultivation racks 24 in which the side surfaces on which the intake fan 40 is disposed face each other, an intake fan side passage 42 which is a partially closed space that is partially open is formed. Moreover, between the adjacent cultivation racks 24 in which the side surfaces where the exhaust fan 41 is disposed are opposed, an exhaust fan side passage 43 which is a partially closed space which is partially opened is formed. In the present embodiment, the side surfaces of the cultivation racks 24 at both ends on which the intake fans 40 are disposed face the left side wall 34 and the right side wall 35, respectively. Therefore, an intake fan side passage 42 is formed between the side surface of the cultivation rack 24 at each end on which the intake fan 40 is disposed, and the left side wall 34 and the right side wall 35.

  In the plant cultivation system 100 according to the present embodiment, an upper air blocking member 44 for blocking the flow of air is disposed between the top surface of each cultivation rack 24 and the ceiling 30 of the cultivation room 23. Further, a lower air blocking member 45 for blocking the flow of air is disposed between the lowermost surface of each cultivation rack 24 and the floor 31 of the cultivation room 23. The upper air blocking member 44 and the lower air blocking member 45 may be, for example, resin boards or cloth curtains. Further, a passage air blocking member 46 for blocking the flow of air is disposed on one side of the intake fan side passage 42 and the exhaust fan side passage 43 on the short side. The passage air blocking member 46 may be, for example, a curtain curtain suspended from the ceiling 30. On the other hand, the other side surface 47 on the short side of the intake fan side passage 42 and the exhaust fan side passage 43 is open (hereinafter referred to as "open side surface 47").

  As described above, in the plant cultivation system 100 according to the present embodiment, the intake fan side passage 42 and the exhaust fan side passage 43 are formed by the cultivation rack 24, the upper air blocking member 44, the lower air blocking member 45, and the passage air blocking member 46. It is formed. The intake fan side passage 42 and the exhaust fan side passage 43 form a semi-closed space in which only the open side 47 is open. As shown in FIGS. 1 and 2, the intake fan side passage 42 and the exhaust fan side passage 43 are alternately arranged in the width direction of the front side wall 32 and the rear side wall 33.

  FIG. 4 is a schematic plan view for explaining the flow of air in the plant cultivation system 100 according to the present embodiment. FIG. 5: is an AA schematic sectional drawing of the plant cultivation system 100 shown in FIG.

  In the plant cultivation system 100, when the intake fan 40 and the exhaust fan 41 are operated, the air of the intake fan side passage 42 is taken into the cultivation space 20 by the intake fan 40 as shown by the arrow AF in FIGS. And, the air in the cultivation space 20 is discharged to the exhaust fan side passage 43 by the exhaust fan 41. As a result, a pressure difference is generated between the exhaust fan side passage 43 and the intake fan side passage 42. That is, the pressure of the exhaust fan side passage 43 becomes higher than that of the intake fan side passage 42. With this pressure difference, as shown in FIG. 4, an air flow that flows from the exhaust fan side passage 43 into the intake fan side passage 42 is generated through the open side surface 47.

  Due to the heat generation of the LED light source 15 installed in the cultivation rack 10 and the transpiration from the plants 22, the air flow generated in the exhaust fan side passage 43 has a higher temperature and humidity than the air flow generated in the intake fan side passage 42. Therefore, the air flow generated in the exhaust fan-side passage 43 is referred to as “warm air flow HA”, and the air flow generated in the intake fan side passage 42 is referred to as “cold air flow CA”.

  In the plant cultivation system 100 according to the present embodiment, circulation of air can be generated in the cultivation room 23 by generating the warm air flow HA and the cold air flow CA. Since the bias of the temperature and humidity environment in the cultivation space 20 is suppressed, the environment in the cultivation room 23 can be suitably maintained.

Here, a preferable relationship between the cultivation room 23 and the size of the cultivation rack 24 will be shown. As shown in FIG. 2, the height from the floor 31 to the ceiling 30 in the cultivation room 23 is La (m), and the height of the cultivation rack 24 is Lb (m). Moreover, as shown in FIG. 1, let the length of the longitudinal direction of the cultivation rack 24 be Lc (m), and let the arrangement | positioning space | interval of the cultivation rack 24 be Ld (m). At this time, it is desirable that La, Lb, Lc and Ld satisfy the following conditional expressions (1) to (3).
0.85 ≦ Lb / La ≦ 1.0 (1)
0.5 ≦ Lc / La ≦ 5.0 (2)
0.1 ≦ Ld / La ≦ 0.3 (3)

The space volume Lv of the intake fan side passage 42 and the exhaust fan side passage 43 is given by Lv = La × Lc × Ld (m ³ ). Assuming that the total air volume of the intake fan 40 or the exhaust fan 41 provided on the longitudinal side surface of one cultivation rack 24 is Ft (m ³ / sec), it is desirable that Ft satisfy the following conditional expression (4) .
Lv / 50 ≦ Ft ≦ Lv / 5 (4)
Here, in the present embodiment, the lower limit value (Lv / 50) and the upper limit value (Lv / 5) of Ft are intake fans in which air corresponding to 1/2 of the space volume Lv is disposed on the side surface of the cultivation rack 24 The arrangement interval Ld of the cultivation rack 24 and the wind speed required for the inside of the cultivation rack 24 (cultivation rack 10) so that the inside of the cultivation rack 24 is blown (or blown outside) by the fan 40 (or the exhaust fan 41) It can be determined based on.

  The plant cultivation system 100 according to the present embodiment further includes an air conditioner 50 disposed outside the cultivation room 23. As shown in FIG. 4, the air conditioner 50 sucks a part of the air in the exhaust fan side passage 43 from the air inlet 50 a provided in the front side wall 32, adjusts the temperature and humidity of the air, and adjusts the air temperature. The rear air is sent out from the exhaust port 50 b provided on the front side wall 32 into the intake fan side passage 42. The warm air HA of the exhaust fan side passage 43 not sucked from the air inlet 50a of the air conditioner 50 mixes with the adjusted air sent out from the air outlet 50b of the air conditioner 50 and is next to the culture rack 24 Flows into the intake fan-side passage 42 of FIG. Since the temperature and humidity of the cold air flow CA can be adjusted by providing the air conditioner 50 in this manner, the environment in the cultivation room 23 can be further suitably maintained.

  FIG. 6 is a schematic cross-sectional view of the exhaust fan side passage 43. As shown in FIG. FIG. 7 is a schematic cross-sectional view of the intake fan side passage 42. As shown in FIG. As shown in FIG. 6, when the air in the exhaust fan side passage 43 is sucked from the intake port 50 a of the air conditioning facility 50, a flow of the warm air HA in the vertical direction occurs in the exhaust fan side passage 43. Further, as shown in FIG. 7, air is sent out from the exhaust port 50 b of the air conditioner 50 to the intake fan side passage 42, whereby a vertical flow of the cold air flow CA occurs in the intake fan side passage 42. The flows of the warm air HA and the cold air CA shown in FIGS. 6 and 7 are an example, and the flows of the warm air HA and the cold air CA by changing the intake direction at the intake port 50a and the exhaust direction at the exhaust port 50b. Can change.

  FIG. 8 is a schematic plan view for describing the flow of air in the plant cultivation system 100 according to the present embodiment. As shown in FIG. 8, between the end of the front side wall 32 of the cultivation rack 24 and the front side wall 32 in order to control the amount of warm air HA flowing from the exhaust fan side passage 43 into the intake fan side passage 42, An air blocking member 80 may be disposed. The air blocking member 80 may be, for example, a rattan curtain suspended from the ceiling 30. The air blocking member 80 may be height adjustable. In this case, by adjusting the height of the air blocking member 80, the amount of the warm air HA flowing from the exhaust fan side passage 43 into the intake fan side passage 42 can be suitably controlled.

  In the plant cultivation system 100, the intake fan 40 and the exhaust fan 41 may be configured to be able to adjust the air volume in accordance with the vertical position of the cultivation rack 10 in which they are disposed. The details will be described below.

  FIG. 9 is a schematic cross-sectional view for explaining a first operation mode of the intake fan 40 and the exhaust fan 41. As shown in FIG. In the first operation mode, the air volume of the intake fan 40 and the exhaust fan 41 disposed in the cultivation shelf 10 located above is increased, and the intake fan 40 and the exhaust fan 41 disposed in the cultivation shelf 10 situated below. Reduce the volume of air flow. In FIG. 9, the thickness of the arrow AF represents the air volume of the intake fan 40 and the exhaust fan 41. As shown in FIG. 9, in the first operation mode, the air volumes of the intake fan 40 and the exhaust fan 41 decrease from the upper cultivation rack 10 to the lower cultivation rack 10. As described above, when the intake fan 40 and the exhaust fan 41 are operated, in the intake fan side passage 42, the pressure in the upper part becomes relatively lower than the pressure in the lower part, and thus an upward flow of the cold air CA is generated. On the other hand, in the exhaust fan side passage 43, since the upper pressure is relatively higher than the lower pressure, a downward flow of the warm air HA is generated.

  FIG. 10 is a schematic cross-sectional view for explaining a second operation mode of the intake fan 40 and the exhaust fan 41. As shown in FIG. In the second operation mode, the air volume of the intake fan 40 and the exhaust fan 41 disposed in the cultivation shelf 10 located above is reduced, and the intake fan 40 and the exhaust fan 41 disposed in the cultivation shelf 10 situated below. Increase the air volume of In FIG. 10, the thickness of the arrow AF represents the air volume of the intake fan 40 and the exhaust fan 41. As shown in FIG. 10, in the second operation mode, the air volumes of the intake fan 40 and the exhaust fan 41 increase from the upper cultivation rack 10 to the lower cultivation rack 10. When the intake fan 40 and the exhaust fan 41 are operated as described above, in the intake fan side passage 42, the pressure in the upper part becomes relatively higher than the pressure in the lower part. On the other hand, in the exhaust fan side passage 43, since the upper pressure is relatively lower than the lower pressure, a rising air flow of the warm air HA is generated.

  Thus, according to the plant cultivation system 100 according to the present embodiment, by controlling the air volume of the intake fan and the exhaust fan, the updraft or downdraft is generated in the intake fan side passage 42 and the exhaust fan side passage 43. Can be generated. Thus, the temperature and humidity of the intake fan side passage 42 and the exhaust fan side passage 43 can be adjusted in the height direction, so that the environment in the cultivation room 23 can be further suitably maintained.

  Since the amount of transpiration and the like differ depending on the growth state of the plants 22 in the respective cultivation racks 10, it is preferable to switch the first operation mode and the second operation mode as appropriate to operate the intake fan 40 and the exhaust fan 41. Also in each operation mode, the strength of the rising or falling air flow can be adjusted by controlling the size of the air volume. Furthermore, a sensor for measuring the temperature and humidity environment may be disposed in the cultivation space 20, and the air volume of the intake fan 40 and the exhaust fan 41 may be controlled based on the detection value of this sensor.

  11 and 12 are diagrams for explaining a plant cultivation system 200 according to another embodiment of the present invention. FIG. 11 is a schematic cross-sectional view of the exhaust fan side passage 43 in the plant cultivation system 200. As shown in FIG. FIG. 12 is a schematic cross-sectional view of the intake fan side passage 42 in the plant cultivation system 200. As shown in FIG. The plant cultivation system 200 which concerns on this embodiment differs in the intake / exhaust method between the air conditioning installation 50 arrange | positioned to the exterior of the cultivation room 23, and the cultivation room 23 from the above-mentioned plant cultivation system 100. As shown in FIG.

  In the plant cultivation system 200 according to the present embodiment, as shown in FIG. 11, an intake duct 60 is provided along the exhaust fan side passage 43 near the ceiling 30 of the exhaust fan side passage 43. Further, as shown in FIG. 12, an exhaust duct 62 is provided in the vicinity of the ceiling 30 of the intake fan side passage 42 along the intake fan side passage 42. The intake duct 60 and the exhaust duct 62 are connected to an air conditioner 50 disposed outside the cultivation room 23.

  FIG. 13 is a schematic perspective view of the vicinity of the ceiling of the intake fan side passage 42 in the plant cultivation system 200. As shown in FIG. As described above, the exhaust duct 62 is provided in the vicinity of the ceiling of the intake fan side passage 42 along the intake fan side passage 42. As shown in FIG. 13, a plurality of exhaust ports 63 are provided on the lower surface of the exhaust duct 62 at predetermined intervals along the longitudinal direction of the exhaust duct 62. The plurality of exhaust ports 63 are formed such that the hole diameter increases as the flow path distance from the air conditioning facility 50 increases. In the vicinity of the ceiling of the exhaust fan side passage 43, an intake duct 60 in which a plurality of intake ports 61 are similarly formed is provided.

  As shown in FIG. 11, in the exhaust fan-side passage 43, the air in the exhaust fan-side passage 43 is drawn from the intake port 61 of the intake duct 60, whereby a flow of warm air HA going upward is generated. Further, as shown in FIG. 12, in the intake fan side passage 42, air is sent out from the exhaust port 63 of the exhaust duct 62 to the intake fan side passage 42, whereby a flow of cold air flow CA going downward is generated.

  By performing intake and exhaust with the air conditioner 50 via the intake duct 60 and the exhaust duct 62 provided on the ceiling 30 as in the present embodiment, temperature and humidity adjustment in the cultivation room 23 can be performed more efficiently. .

  In the plant cultivation system 200 which concerns on this embodiment, you may comprise so that the opening degree of the inlet 61 and the exhaust port 63 can be adjusted. In this case, temperature and humidity adjustment in the cultivation room 23 can be performed more efficiently.

  The present invention has been described above based on the embodiments. It is understood by those skilled in the art that this embodiment is an exemplification, and that various modifications can be made to the combination of each component and each processing process, and such a modification is also within the scope of the present invention. .

  In the plant cultivation system 100 which concerns on the above-mentioned embodiment, although the cultivation room 23 demonstrated as what has cuboid space, the shape of a cultivation room is not restricted to a cuboid shape. The shape of the cultivation room may be, for example, an arched shape such as a gymnasium where the ceiling is higher at the center than at the side. In this case, the number of steps of the cultivation rack 10 may be different depending on the ceiling height.

  10 cultivation rack, 15 LED light source, 20 cultivation space, 22 plants, 23 cultivation rooms, 24 cultivation racks, 26 cultivation units, 40 intake fans, 41 exhaust fans, 42 intake fan side passages, 43 exhaust fan side passages, 44 upper air Blocking member, 45 lower air blocking member, 46 passage air blocking member, 50 air conditioning equipment, 60 intake duct, 62 exhaust duct, 80 air blocking member, 100, 200 plant cultivation system.

Claims (7)

A plant cultivation system in which a plurality of cultivation racks are arranged in a cultivation room,
Each of the cultivation racks comprises a plurality of cultivation shelves in the vertical direction,
Reflectors are disposed on the side surfaces of each of the cultivation racks, and a space surrounded by the reflectors is a cultivation space for cultivating plants,
A plurality of intake fans are provided on one longitudinal side surface of each of the cultivation racks for drawing outside air into the cultivation space,
A plurality of exhaust fans for exhausting the air in the cultivation space to the outside are provided on the other longitudinal side of each of the cultivation racks,
The plurality of cultivation racks are arranged in parallel at a predetermined interval such that the side surfaces on which the intake fans are disposed face each other and the side surfaces on which the exhaust fans are disposed are opposed to each other.
Between the cultivation racks side faces of the suction fan is disposed adjacent the opposite, suction fan side passage is between partially opened air is formed,
Between the cultivation racks side faces the exhaust fan is disposed adjacent the opposite, exhaust fan side passage is between partially opened air is formed,
An upper air blocking member is disposed between the top surface of each of the growing racks and the ceiling of the growing room, for blocking the flow of air;
The air in the intake fan-side passage is taken into the cultivation space by the intake fan, and the air in the cultivation space is discharged to the exhaust fan-side passage by the exhaust fan. A plant cultivation system characterized in that an air flow which flows into the intake fan side passage is generated. The plant cultivation system according to claim 1, wherein a lower air blocking member for blocking the flow of air is disposed between the lowermost surface of each of the cultivation racks and the floor of the cultivation room. A passage air blocking member for blocking the flow of air is disposed on one side of the intake fan side passage and the short side of the exhaust fan side passage,
The plant cultivation system according to claim 1 or 2 , wherein the other side surfaces of the intake fan side passage and the short side of the exhaust fan side passage are opened. The suction air of the exhaust fan side passage to adjust the temperature and humidity of the air, of claims 1, further comprising a conditioning equipment for feeding the air after the adjustment to the intake fan-side passage 3 The plant cultivation system according to any one of the above. 5. The air intake fan and the exhaust fan according to any one of claims 1 to 4 , wherein the air volume can be adjusted according to the vertical position of the cultivation rack in which they are disposed. Plant cultivation system. The intake fan and the exhaust fan increase the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located above, and the intake fan and the exhaust disposed in the cultivation shelf located below by reducing the air volume of the fan, together with cause updraft by the suction fan side passage, to claim 5, characterized in that it comprises a first operating mode to produce a downdraft in the exhaust fan-side passage Plant cultivation system as described. The intake fan and the exhaust fan reduce the air volume of the intake fan and the exhaust fan disposed in the cultivation shelf located above, and the intake fan and the exhaust disposed in the cultivation shelf located below The second operation mode according to claim 5 or claim 6, characterized in that the second air flow is generated in the intake fan side passage by increasing the air flow rate of the fan and the second air flow is generated in the exhaust fan side passage. The plant cultivation system as described in 6 .

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