JP2012182998A - Hydroponic system - Google Patents

Hydroponic system Download PDF

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Publication number
JP2012182998A
JP2012182998A JP2011046630A JP2011046630A JP2012182998A JP 2012182998 A JP2012182998 A JP 2012182998A JP 2011046630 A JP2011046630 A JP 2011046630A JP 2011046630 A JP2011046630 A JP 2011046630A JP 2012182998 A JP2012182998 A JP 2012182998A
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Prior art keywords
cultivation
panel
path
cultivation panel
return
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JP2011046630A
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Japanese (ja)
Inventor
Toshiro Ito
Kazuo Mori
利朗 伊藤
一生 森
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Morihisa Engineering:Kk
株式会社森久エンジニアリング
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Priority to JP2011046630A priority Critical patent/JP2012182998A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00Soilless cultivation, e.g. hydroponics
    • A01G31/02Special apparatus therefor
    • A01G31/04Hydroponic culture on conveyors
    • A01G31/042Hydroponic culture on conveyors with containers travelling on a belt or the like, or conveyed by chains
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

An object of the present invention is to reduce the number of work places in a plant factory to increase the planting area and increase the work efficiency of the worker.
A hydroponic cultivation system of the present invention is a return water channel that floats and moves a cultivation panel. The cultivation water tank has a return water channel that can input and collect the cultivation panel at one work place. And an illuminating device 30 that illuminates the cultivation panel 20 that is attached to the cultivation water tank 10 and floats and moves in the return water channel 11.
[Selection] Figure 1

Description

  The present invention relates to a hydroponics system for hydroponically cultivating a plant.

  In recent years, plant factories for cultivating plants in buildings have been built for the purpose of stably supplying crops to the market without being affected by the weather. In plant factories, plants are often cultivated by hydroponics in order to control soil pests, avoid continuous cropping problems, and omit weeding operations.

  In a plant factory by hydroponics, plants are usually arranged by arranging a plurality of elongated cultivation tanks (hereinafter sometimes simply referred to as tanks) in parallel with each other and floating a plurality of cultivation panels in each cultivation tank. Is cultivated.

  FIG. 6 is a plan view showing a conventional plant factory 601, FIG. 6 (a) is a plan view when the cultivation panel 620 is fixed, and FIG. 6 (b) shows the cultivation panel 620 in a certain direction. It is a top view in the case of cultivating by pitch feeding.

  Plant factories can be cultivated without being affected by the season or weather. Therefore, in the case of the plant factory 601 shown in FIG. 6A, the shipping time is adjusted and the cultivated product is stably supplied by shifting the time when the cultivation panel 620 is introduced for each cultivation water tank 610. In the case of the plant factory shown in FIG. 6 (b), the cultivation panel 620 is introduced every other day at a certain time interval at the inlet 611 of the cultivation tank 610, and the cultivation panel is formed in a ball shape. The cultivated panel 620 is pushed out toward the collection port 612 and the cultivation panel 620 cultivated to a ready for shipping state is sequentially taken out from the collection port 612 to stably supply the cultivated product.

  Patent Document 1 discloses a floating transfer method of a hydroponics panel (cultivation panel) used in a plant factory by such hydroponics and a hydroponics panel capable of floating transfer control.

JP 2007-215485 A

  In the plant factory, in addition to the cultivating aquarium, a work place is required for putting the cultivation panel into the aquarium or collecting it from the aquarium. In addition, since the work place includes a conveyor installation space for transporting the cultivation panel and a passage through which a cart passes, the width is relatively wide. However, since the plant factory has a limited building area, there is a problem that if the area of the work place is widened, the planting area of the plant decreases accordingly. Further, when the distance from the work place to the warehouse or the adjustment work room is long, the distance (traffic line) that the worker moves is also increased, so that the work efficiency is lowered.

  When the cultivation panel 620 is fixed to the cultivation tank 610 as in the plant factory 601 shown in FIG. 6A, the cultivation panel 620 does not move, so that the operator moves by himself and grows from the side of each cultivation tank 610. The panel 620 needs to be loaded and collected. Therefore, it is necessary to provide the work place 640 in parallel with each cultivating water tank 610, so that the acreage is reduced and the loss is large.

  In addition, the worker uses the carriage from the adjustment work room 642 (the room where the worker attaches the seedling to the cultivation panel or takes out the cultivation product from the cultivation panel) at the time of the input work. At the time of carrying and harvesting work, it is necessary to carry the collected cultivation panel 620 to the adjustment work room 642. In order to pass between each cultivation tank 610 and convey the cultivation panel 620, in the plant factory 601 shown to Fig.6 (a), the movement distance (flow line 644) which conveys the cultivation panel 620 becomes comparatively long, and work There was a problem that efficiency decreased.

  On the other hand, when pitching the cultivation panel 620 shown in FIG. 6 (b) periodically, the inlet 611 for introducing the cultivation panel 620 into one end of the cultivation water tank 610 has a cultivation panel 620 at the other end. A recovery port 612 for recovering the water is disposed. Therefore, the comparatively wide working place 640 was provided in the both ends of the cultivation water tank 610. FIG. Moreover, the flow line 644 for taking in and out the cultivation panel 620 from the adjustment work chamber 642 has the subject that it becomes large according to the length of the cultivation tank 610.

  Moreover, when pitching the cultivation panel 620 regularly, in order to grow a plant from a seedling to a shipment stage by the time it reaches | attains from the insertion port 611 to the collection port 612, the cultivation water tank 610 linearly required was required. However, depending on the shape of the land, it was not possible to secure a place for installing the cultivation tank 610 having a sufficient length, and there was a case where construction of a plant factory had to be abandoned.

  The plant factory described in Patent Document 1 is also suspended and moved by pushing out the hydroponics panel from the inlet to the recovery port in the same manner as the cultivation tank 610 in FIG. Therefore, it has the same problem about the work place in a plant factory. Further, Patent Document 1 does not particularly mention reducing the work place.

  As described above, it is desired to reduce the number of work places in the plant factory so as to secure a larger planting area and to increase the work efficiency of the worker.

  The present invention is a return channel that floats and moves a cultivation panel, a tank having a return channel that can input and collect the cultivation panel at one work place, and a cultivation panel that is attached to the tank and floats and moves in the return channel And a hydroponic cultivation system comprising:

  Further, according to the present invention, the return channel is floated and moved in a first direction away from the work place in the first direction and the second direction following the forward path and the cultivation panel is moved in the second direction approaching the work place. A hydroponic cultivation system is provided in which a starting path of the forward path and a terminal end of the return path are arranged adjacent to each other.

  The present invention also provides a hydroponic cultivation system, further comprising a turning device that is provided at a connection point between the forward path and the return path of the tank and turns the cultivation panel from the first direction to the second direction. To do.

  In addition, the present invention includes a rail extending along the first direction or the second direction of the return channel, and a runner movable along the rail, and the lighting device is removable from the runner A hydroponic cultivation system that is held by being suspended.

  In the present invention, the lighting device illuminates the cultivation panel immediately after being introduced into the return channel with a first light amount, and the cultivation panel immediately before collection from the return channel is larger than the first light amount. A hydroponic cultivation system that illuminates with two light quantities is provided.

  The present invention further includes a cultivation panel that floats and moves in the return channel, and the cultivation panel is attached to the support member that supports the plant and the support member, and the support member is floated in the return channel. A hydroponic cultivation system comprising a floating member is provided.

  The present invention also provides a hydroponic cultivation system, wherein the forward path and the return path are arranged in parallel to each other in the tank, and further include a separator attached to the tank and partitioning the forward path and the return path. To do.

  If the hydroponics system of this invention is used, since the cultivation panel can be thrown in and collected in one work place by the return waterway which floats and moves the cultivation panel, the conventional tank which needed at least two work places Compared with, the work place and its area can be reduced. In addition, since the work place can be integrated into one place, the flow line of the worker does not become longer as the tank becomes longer as in the conventional case, and the work efficiency is improved. Moreover, since the movement distance of the cultivation panel in a tank can be increased by setting it as a return waterway, even if it shortens the length of a tank, the movement distance equivalent to the conventional tank can be ensured. Therefore, it is possible to construct a plant factory even in a narrow land that has been abandoned.

It is a perspective view which shows a part of hydroponics system in a plant factory. It is sectional drawing along the II-II line of FIG. It is a top view which shows the cultivation tank of the hydroponics system of FIG. It is a top view of the plant factory which arranged the cultivation tank of the hydroponics system of Drawing 1, and Drawing 4 (a) arranges a work place in the center of a plant factory, and arranges cultivation tanks in parallel on the both sides FIG. 4B is a diagram showing a case where work places are arranged at one end of the plant factory. It is a side view which shows the hydroponic cultivation system arrange | positioned at the plant factory of Fig.4 (a). It is a top view which shows arrangement | positioning of the cultivation tank in the conventional plant factory, Fig.6 (a) is a top view which shows the case where the position of a cultivation panel is fixed to the cultivation tank, FIG.6 (b) pitch-feeds a cultivation panel It is a top view in the case of cultivating.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following embodiments, the same or similar components are denoted by common reference numerals.

  FIG. 1 is a perspective view showing a part of the hydroponic cultivation system 100 of the present embodiment, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a plan view showing the cultivation tank 10 of the hydroponic cultivation system 100.

  The hydroponics system 100 of this embodiment is a system for cultivating a plant by hydroponics in a plant factory, and includes a cultivating water tank 10 and a lighting device 30 attached to the cultivating water tank 10. Moreover, in the cultivation tank 10, the cultivation panel 20 (Hereinafter, when showing the specific cultivation panel 20, an alphabet may be attached and it may distinguish). The cultivation water tank 10 of this embodiment has the return water channel 11 which floats and moves the cultivation panel, and the cultivation panel 20 thrown in by the operator from the work place 40 reciprocates back and forth in the return water channel 11 so that the cultivated product is returned. After growing, it is collected again at the work place 40. Moreover, the illuminating device 30 is attached so that the cultivation panel 20 which carries out the floating movement of the return channel 11 may be illuminated.

  The cultivation tank 10 is an elongated tank having an axis A in the longitudinal direction, and the cultivation tank 10 is filled with a hydroponic solution 12. The plurality of cultivation panels 20 are continuously suspended on the hydroponic nutrient solution 12, and each cultivation panel 20 comes into contact with the adjacent cultivation panel 20 by pressing one of the cultivation panels 20 in one direction. The continuous cultivation panel 20 moves in a ball shape.

  The return channel 11 collects, at one end portion 10a of the cultivating water tank 10, an input port 13 into which a cultivating panel 20d that supports the seedling 25a is input and a cultivating panel 20c that supports a grown product 25b that can be grown and shipped. And a recovery port 14. In addition, the return channel 11 floats and moves the cultivation panel 20 in the direction away from the work place 40 (the first direction B in FIG. 1) from one end 10a of the cultivation tank 10 toward the other end 10b. 15 and a return path 16 for floatingly moving the cultivation panel 20 in the direction approaching the work place 40 (second direction C in FIG. 1) from the other end 10b toward the one end 10a. As shown in the figure, the input port 13 that is the start end of the forward path 15 and the recovery port 14 that is the end of the return path 16 are disposed adjacent to each other. On the other hand, as shown in FIG. 3, in the other end portion 10 b of the cultivating water tank 10, the forward path 15 and the return path 16 are connected, and the moving direction of the cultivation panel 20 is changed from the first direction B to the connection location. A turning device 26 for turning in the second direction C is provided.

  Moreover, as can be seen from the figure, the cultivating aquarium 10 of the present embodiment has the forward path 15 and the return path 16 arranged in parallel with each other in the cultivating aquarium 10, and extends along the axis A at the center of the cross section. A separator 18 is provided. The separator 18 clarifies the boundary between the forward path 15 and the return path 16 in the cultivating aquarium 10, and the cultivation panel 20 that floats and moves on the outbound path 15 does not contact the cultivation panel 20 that floats and moves on the return path 16. This facilitates floating movement of the cultivation panel 20 by a person or device.

  In the present embodiment, the forward path 15 and the return path 16 are arranged in parallel to each other in the linear cultivation tank as described above, and are formed so that the cultivation panel 20 floats linearly. However, this is an example of the arrangement of the forward path 15 and the return path 16, and the forward path 15 and the return path 16 may not be provided in the same water tank. That is, the outward path 15 and the return path 16 may move the cultivation panel 20 in separate aquariums. For example, the outward panel 15 and the return path 16 are formed so that the cultivation panel 20 is floated and meandered in an independent aquarium. You can do it. Further, the forward path 15 and the return path 16 may be formed by an annular water tank, and in that case, the separator 18 that separates the water tank and the turning device 26 that turns the moving direction of the cultivation panel 20 may not be provided.

  The structure of the cultivation panel 20 that floats and moves in the return channel 11 will be described. The cultivation panel 20 is a member that supports a grown cultivation while a plurality of seedlings are planted at a constant interval (inter-strain pitch). In the plant factory, the pitch is varied according to the type and growth of the cultivation. The formed cultivation panel 20 is prepared. Conventional cultivation panels are often made simply using a foamable material so that they float in the hydroponic culture solution 12, and a wider storage area is required as the number of cultivation panels to be managed increases. . Particularly in large plant factories, thousands of cultivation panels may be used, and management and storage of the cultivation panels has been a heavy burden. In this embodiment, the function of the cultivation panel is divided into a support function that stably supports the cultivated product at regular intervals, and a float function that floats the cultivation panel in the hydroponic liquid and facilitates movement. Yes. And the size of a cultivation panel and the joining means are standardized so that each member can exchange mutually. Specifically, as shown in FIG. 2, the cultivation panel 20 includes a support member 22 that supports a plant and a floating member 24 that floats the support member 22, and each is formed as a separate member. ing. Since the supporting member 22 can be exchanged, the cultivation panel 20 suitable for the cultivation can be provided by combining the floating member 24 with the supporting member 22 whose pitch between the strains is changed according to the cultivation.

  Since the support member 22 of the cultivation panel 20 does not require a float function like a conventional cultivation panel, it only needs to have a function of providing a cultivation support function and an appropriate inter-strain pitch. Therefore, the thickness of the support member 22 is sufficient only to be strong enough to withstand the weight of the cultivated product 25, and can be made thin. Since the thickness of the support member 22 can be reduced, the storage property is improved. Moreover, although the conventional cultivation panel was formed from the foamable material in order to make it float, its durability was low, By using a highly durable board | plate material for the supporting member 22, it becomes possible to use it for a long period of time. . The support member 22 of this embodiment is formed with a width D of about 60 cm, a length L of about 90 cm, and a thickness S of about 1 cm.

  Further, the floating member 24 is formed by combining rectangular cylindrical bodies by plate-like constituent members formed of hollow resin, wood, foam material, or the like. By forming the floating member 24 with a plate-shaped component, the storage property when disassembled is improved, and the space efficiency of a warehouse or the like can be improved.

  In the case of a long and narrow aquarium like the cultivating aquarium 10 of the present embodiment, in order to return the cultivation panel 20 on the return water channel 11, the moving direction of the cultivation panel 20 is turned at the other end 10 b of the cultivating aquarium 10. There is a need. In this embodiment, the outward path 15 and the return path 16 are connected at the other end portion 10b of the cultivating water tank 10, and the cultivating panel 20 is moved from the first direction B to the second direction C in the connecting direction. Turn around.

  The turning procedure in the moving direction of the cultivation panel 20 in the present embodiment is as follows. First, the cultivation panel 20a located at the head of the forward path 15 is translated in the direction E in FIG. 3 to the position indicated by the dotted line in FIG. And the cultivation panel 20a which moved to the tail end of the return path 16 is pushed out toward one edge part 10a. The cultivation panel 20 a comes into contact with the adjacent cultivation panel 20 b, the entire cultivation panel 20 on the return path 16 moves in a ball-like shape in the second direction C, and the cultivation panel 20 c at the head moves to the collection port 14. The operator can take out the cultivation panel 20c at the head of the return path 16 at the shipping stage from the collection port 14.

  On the other hand, since the head of the outward path 15 is vacant, the cultivation panel 20d located at the tail end of the outward path 15 is pushed out, and the entire cultivation panel 20 in the outward path 15 is moved in the first direction B in a ball-like shape. Since the insertion slot 13 becomes empty after the movement, a new cultivation panel 20 in which a seedling is planted can be introduced into the insertion slot 13.

  Since the above-mentioned turn-back procedure of the cultivation panel 20 is a work about once per 1-3 days, it may be performed manually. However, since a large number of cultivation tanks 10 are used in the plant factory, it is more efficient if the number of times is at least the turning procedure of the cultivation panel 20 is automated. In the present embodiment, as described above, the turning device 26 that turns the cultivation panel 20 from the first direction B to the second direction C is connected to the other end portion 10b of the aquarium body 10, that is, the outgoing path 15 and the return path 16. Is provided.

  Moreover, the turning apparatus 26 changes the moving direction of the 1st extrusion apparatus 27 and the cultivation panel 20 which automatically move the cultivation panel 20 from the outward path 15 to the return path 16, and one edge part from the other edge part 10b. It is comprised from the 2nd extrusion apparatus 28 which extrudes the cultivation panel 20 to the 2nd direction C toward 10a.

  The first extruding device 27 of the turning device 26 rotates a pressing portion 27a that contacts the side surface of the cultivation panel 20, a worm gear 27b connected to one end of the pressing portion 27a, and the worm gear 27b about its axis. And a motor 27c. As the motor 27c rotates, the worm gear 27b rotates and the pressing portion 27a moves in parallel in the E direction or the F direction. With this mechanism, the cultivation panel 20a located at the head of the forward path 15 can be moved from the forward path 15 to the return path 16. In addition, the stopper 27d which prevents the cultivation panel 20e from carrying out floating movement is provided in the other edge part of the press part 27a. The stopper 27d is a locking piece that extends in an orthogonal direction from the end of the pressing portion 27a. Since the operator can push out the cultivation panel 20 in the outward path 15 from the insertion port 13, the cultivation panel 20e may enter before the pressing portion 27a returns to the original place (side surface of the cultivation water tank 10). is there. By providing such a stopper 27d, it is possible to prevent the cultivation panel 20e from entering the other end 10b when the pressing part 27a returns in the F direction after the cultivation panel 20a is pushed out.

  The second extrusion device 28 of the turning device 26 includes a pressing portion 28a that contacts the end surface of the cultivation panel 20, a worm gear 28b connected to the pressing portion 28a, and a motor 28c that rotates the worm gear 28b around its axis. I have. As the motor 28c rotates, the pressing portion 28a connected to the worm gear 28b moves in the direction (second direction C) from the other end portion 10b of the cultivating water tank 10 toward the one end portion 10a. By such a second extrusion device 28, the first extrusion device 27 extrudes the cultivation panel 20a pushed out from the outward path 15 to the return path 16 in the second direction C, and floats and moves the entire cultivation panel 20 in the return path 16 in a ball-like shape. .

  Each control of the first extrusion device 27 and the second extrusion device 28 of the turning device 26 may be remotely operated using a switch installed at the work place 40. By remotely operating the first extrusion device 27 and the second extrusion device 28, the operator harvests the cultivation panel 20 c from the collection port 14 and immediately moves the cultivation panel 20 a at the head of the forward path 15 to the return path 16. Can be made.

  In the present embodiment, the first extrusion device 27 and the second extrusion device 28 using a worm gear or the like have been described as the rotation device 26. However, the mechanism for realizing the rotation device 26 includes worm gears 27b and 28b and motors 27c and 28c. For example, an air cylinder or a hydraulic cylinder may be used. Moreover, extrusion of the cultivation panel 20 of the turning device 26 may be realized using an injection device that injects water or air from the wall of the cultivation tank 10 toward the cultivation panel 20.

  Next, the illumination device 30 will be described. In plant factories, plants are cultivated using a lighting device 30 having a fluorescent tube or the like in order to suppress variations in plant growth due to bad weather. In the hydroponics system 100 of this embodiment, the illuminating device 30 is arrange | positioned above the cultivation water tank 10, and the cultivation panel 20 on the return water channel 11 is illuminated. Moreover, the illuminating device 30 is comprised from the some illumination unit 31, and each illumination unit 31 is arrange | positioned along the longitudinal direction of the cultivation water tank 10 by two or more. Each illumination unit 31 has a plurality of straight fluorescent tubes 32 (linear light emitters), and each of the fluorescent tubes 32 is held by a support frame 34. Each lighting unit 31 includes a shade 33 that covers each fluorescent tube 32, and the shade 33 is also held by a support frame 34 like the fluorescent tube 32.

  The illumination unit 31 shown in the figure has four fluorescent tubes 32 arranged so as to be parallel to each other. As shown in FIG. 2, in the lighting unit 31 located above one end 10 a of the cultivating aquarium 10, the four fluorescent tubes 32 are not arranged at equal intervals, and more fluorescence is provided above the return path 16. Tubes 32 are arranged. In this embodiment, the intervals W2 and W3 between the fluorescent tubes 32 arranged above the return path 16 are arranged above the forward path 15 so that the light quantity irradiated to the return path 16 is larger than the light quantity irradiated to the forward path 15. They are arranged narrower than the interval W1 between the fluorescent tubes 32. That is, the cultivation panel 20c immediately before collection from the return water channel 11 is illuminated with a light amount (second light amount) larger than the light amount that illuminates the cultivation panel 20d immediately after being introduced into the return water channel 11 (first light amount). The fluorescent tube 32 is arranged so as to achieve this. This is because the grown crop 25b on the return path 16 requires a larger amount of light for growth than the grown crop 25a on the return path 15. Therefore, the illumination unit 31 is configured such that three fluorescent tubes 32 are arranged above the return path 16.

  On the other hand, although it is not illustrated, in the lighting unit 31 attached in the vicinity of the other end portion 10b of the cultivating aquarium 10, the growth stages of the cultivated products in the forward path 15 and the return path 16 below are almost the same. Two tubes 32 are arranged at equal intervals on the outward path 15 and the return path 16.

  In addition, the number of the fluorescent tubes 32 which each illumination unit 31 has may be three or five according to the light quantity required for cultivation of cultivation. In this embodiment, a straight fluorescent tube is used as the linear light emitter, but various light emitters such as a light emitting diode may be used.

  The shade 33 of the illumination unit 31 has a curved reflecting surface 33a so as to include a quadratic curve covering each fluorescent tube 32 in the shape of its cross section. The fluorescent tube 32 is located at the focal point of each quadratic curve included in the shade 33, and can efficiently reflect the light emitted from the fluorescent tube 32 toward the cultivation.

  Further, the reflecting surface 33a of the shade 33 is formed by using a fluorescent material, or has a fluorescent function by mixing the fluorescent material, and converts light emitted from the fluorescent tube 32 into a specific wavelength. And may be reflected. This fluorescent function may be realized by applying a fluorescent paint to the inner surface of the shade 33. By this fluorescence function, light (green or yellow) having a wavelength of 500 nm to 600 nm that is not used by the plant among light of the fluorescent tube 32 can be reflected to light (red) having a wavelength of 600 nm or more that is effectively used by the plant. It becomes possible. Further, the shade 33 can also reflect the green light reflected from the cultivated matter and the light from the cultivation panel 20 installed below the lighting unit 31 by converting it into light having a wavelength effective for plant growth. It is. Therefore, the illumination unit 31 can grow a cultivated with extremely high efficiency as compared with a conventional shade that simply reflects light. Examples of the fluorescent material mixed in the reflecting surface 33a include various materials such as an inorganic fluorescent material, an organic fluorescent material, a fluorescent dye, and a fluorescent pigment. Further, two or more kinds of fluorescent materials may be used for converting the fluorescent materials into various wavelengths.

  A reflector 19 is provided along the axis A above the separator 18 attached to the cultivating water tank 10. The reflection plate 19 is erected so as to extend vertically from the upper end of the separator 18 to the lower side of the illumination unit 31, and reflects the light emitted from the illumination unit 31. Therefore, more light from the fluorescent tube 32 provided on the return path 16 is irradiated to the cultivated product 25 on the return path 16. Further, the height of the reflector 19 is formed to be slightly below the valley 33b of the shade 33 of the lighting unit 31, and the reflector 19 completely blocks the light from the fluorescent tube 32 on the return path 16. There is nothing. Thus, the light quantity irradiated to the cultivated products 25a and 25b can be adjusted by adjusting the height of the reflecting plate 19. The reflection plate 19 also has a fluorescent function by forming a fluorescent material as a material or using a material mixed with a fluorescent material, or by applying a fluorescent paint, like the reflective surface 33a of the shade 33. Good.

  Moreover, the hydroponics system 100 of this embodiment is provided with the rail 35 along the longitudinal direction of the cultivation tank 10 above the illumination unit 31. The rail 35 is suspended from the ceiling of the plant factory or supported by a structure (not shown) assembled around the cultivation tank 10. The rail 35 includes a runner 36 that can move along the rail 35, and each lighting unit 31 is removably suspended from the runner 36 and held. Specifically, a hook 37 is provided in the upper center of the support frame 34 of the lighting unit, and each lighting unit 31 is detachably suspended and held by being hooked in a hole formed in the runner 36.

  Since the illumination unit 31 is held by the runner 36 that can move along the rail 35, the operator can easily move the illumination unit 31 along the axis A above the cultivation tank 10. Conventionally, in order to install such an illumination unit 31, the illumination unit 31 is transported to the place where it is installed and attached from the side of the cultivating aquarium 10, so that the illumination unit 31 enters at least the side of the cultivating aquarium 10. It was necessary to secure space. If the lighting unit 31 can be moved along the rail 35 as in the hydroponic cultivation system 100 of the present embodiment, the lighting unit 31 is attached at the work place 40 where the cultivation panel is input and collected, and is suspended from the runner 36. The lighting unit 31 can be moved to a desired place in the lowered state. Therefore, it is not necessary to secure a space for the lighting unit 31 to enter the side of the cultivating aquarium 10, and the cultivating aquarium 10 can be arranged at a narrower interval in the plant factory, so that the planting area can be increased.

  In the illumination unit 31, a weight 38 is attached to the support frame 34. As described above, more fluorescent tubes 32 are arranged on the return path 16 so as to irradiate the cultivation panel 20c on the return path 16 with a greater amount of light. There is a case of tilting to the 16 side. By balancing the lighting unit 31 using the weight 38, the alignment of the fluorescent tubes 32 of the lighting unit 31 can be adjusted to be parallel to the water surface of the cultivating aquarium 10.

  Next, the example which has arrange | positioned the hydroponic cultivation system 100 of this embodiment in the plant factory is demonstrated. Fig.4 (a) has shown the example which has arrange | positioned the cultivation tank 10 of the hydroponic cultivation system 100 to the plant factory 1 which has the same building as the plant factories 601 and 602 shown in FIG. If the hydroponics system 100 of this embodiment is used, the cultivation panel 20 can be thrown in and collected in one work place 40 by reciprocating the cultivation panel 20, that is, returning the cultivation panel 20. Therefore, as shown in FIG. 4 (a), an operator works and places a work place 40 through which a cart passes in the center of the plant factory 1, and the cultivating water tanks 10 are arranged on both sides so as to be parallel to each other. it can. Since the work place 40 can be concentrated in the center, it is not necessary to provide work places at both ends of the cultivating water tank 10 as in the conventional case, and thus a larger planting area can be secured. Moreover, since the work place 40 concentrates in the center, the flow line 44 to the adjustment work room 42 becomes simple and short, and the flow line 44 does not become longer as the cultivation tank 10 becomes longer as in the conventional case. Can be reduced.

  FIG. 4B is another example of a plant factory in which the cultivating aquarium 10 is arranged. In the plant factory 2 in the figure, a plurality of cultivating water tanks 10 are arranged in parallel to each other, but the work place 40 where the cultivation panel 20 is input or collected is arranged so as to be arranged only at one end of the plant factory 2. In the cultivation water tank 10 of this embodiment, since the cultivation panel 20 reciprocates, the length of the cultivation water tank 10 can be made substantially half of the length of the conventional cultivation water tank, ensuring the movement distance of the cultivation panel 20. Therefore, even if the length M of the building is short, it is possible to install the cultivating aquarium 10 capable of cultivating plants, and it is possible to build a plant factory even in a relatively small land.

  Next, an example of a method of using the lighting unit 31 that can be moved along the rail 35 used in the plant factory 1 will be described. FIG. 5 is a side view when the first hydroponic cultivation system 101 and the second hydroponic cultivation system 102 are arranged on both sides of the work place 40 as in the plant factory 1 of FIG. 4 (a). . Although plant plants are used to cultivate crops using lighting, they are usually not turned on at all times, and they set a night time zone in the same way as natural cultivation and turn off the light during that time zone. ing. In general, since nighttime power is cheap, lighting is often turned on at night and turned off during the daytime. However, since the lighting device 30 is not used as a matter of course while the light is turned off, the operating rate is low.

  Therefore, as shown in the figure, the rail 35 is extended so as to cross between the first hydroponics system 101 and the second hydroponics system 102, and the lighting units 31 are configured to be able to move alternately. And either one of the first hydroponic cultivation system 101 and the second hydroponic cultivation system 102 is cultivated using nighttime electric power, and on the other hand, it is operated so as to cultivate using daytime electric power. The operating rate of the lighting device 30 can be increased by moving the lighting unit 31 along the rail 35 during a time zone in which each hydroponics system requires lighting. For example, when night power is used in the first hydroponic cultivation system 101, the lighting unit 31 is arranged on the cultivation tank 10 of the first hydroponic cultivation system 101 within a predetermined time at night as shown by the solid line in the figure. Let When the predetermined time comes, the lighting unit 31 is moved from the first hydroponics system 101 toward the second hydroponic system 102 (G direction in FIG. 5), and the second hydroponic system 102 side is moved. Place it at the position indicated by the dotted line. In the second hydroponics system 102, the plant is cultivated by daytime power using the moved lighting unit 31. Then, when the predetermined time of night comes, the lighting unit 31 is moved from the second hydroponics system 102 toward the first hydroponics system 101 (direction F in FIG. 5), and the plant is again generated by night power. Grow. Thus, by reciprocating the illumination unit 31 along the rail, the illumination device 30 can be used at all times, and the operating rate of the illumination device 30 can be improved.

  In addition, in the plant factory 1 shown in FIG. 5 mentioned above, although the to-be-irradiated object of the illumination unit 31 is the cultivation tank 10 of this embodiment, an to-be-irradiated object is not limited to it, A conventional cultivation tank may be sufficient. . Moreover, in the plant factory by soil cultivation, a rail may be installed along the fence where the plant is grown, and the lighting unit 31 may move on the fence.

  Moreover, although the plant cultivated in a plant factory was divided into two groups, a group using night electricity and a group using day and night electricity, the lighting unit 31 was moved so as to change between day and night. You may make it move so that it may irradiate for a predetermined time for every group divided into the above groups. The time and time zone for irradiating each group may vary depending on the growth status of the plant. For example, the first group has 10 hours from 5:00 to 15:00, and the second group has 15:00 to 21: The lighting device 30 may irradiate the third group for 8 hours from 21:00 to 5:00 on the next day for 6 hours until 00. In this way, by dividing the plants in the plant factory into a plurality of groups and moving the lighting unit for each of a plurality of time zones, the lighting device can be used without being turned off, so the operating rate of the lighting device can be increased. Can be increased. Moreover, in the plant factory 1 of FIG. 5, although the movement of the illumination unit 31 is performed manually, you may perform the movement of the illumination unit 31 automatically using an electric motor, a hydraulic cylinder, etc. FIG.

  The embodiment of the present invention has been described above with reference to the drawings. In conventional cultivating aquariums, work places were required on the entire side or both ends, but if the hydroponic cultivation system of the present invention is used, the cultivation panel is returned by reciprocating movement in the cultivating aquarium. The cultivation panel can be input and collected. By combining the work places into one place, the area of the work place can be reduced, and a larger planting area can be secured, that is, more water tanks can be installed. In addition, it is possible to shorten the length of the cultivation tank while reciprocating the cultivation panel while securing the movement distance of the cultivation panel, so even in a narrow land where the length was insufficient to install the cultivation tank It became possible to build a factory.

DESCRIPTION OF SYMBOLS 1, 2 Plant factory 10 Cultivation tank 11 Return channel 12 Separator 13 Input 14 Recovery port 15 Outward 16 Return 18 Separator 19 Reflector 20 Cultivation panel 22 Support member 24 Floating member 25 Cultivation 26 Turning device 27 First extrusion device 28 First Double extrusion device 30 Illumination device 31 Illumination unit 32 Fluorescent tube 34 Support frame 35 Rail 36 Runner 37 Hook 40 Work place 42 Adjustment work room 44 Flow line 100 Hydroponic system 101 First hydroponic system 102 Second hydroponic system

Claims (7)

  1. A return waterway that floats and moves the cultivation panel, and a tank having a return waterway that can input and collect the cultivation panel at one work place;
    A lighting device attached to the tank and illuminating a cultivation panel that floats and moves in the return channel,
    Hydroponic cultivation system comprising
  2.   The return channel is provided with an outward path for floating the cultivation panel in a first direction away from the work place, and a return path following the forward path for floating the cultivation panel in a second direction approaching the work place, The hydroponic cultivation system according to claim 1, wherein a starting end of the forward path and a terminal end of the return path are arranged adjacent to each other.
  3.   The hydroponic cultivation system according to claim 2, further comprising a turning device that is provided at a connection portion between the forward path and the return path of the tank and turns the cultivation panel from the first direction to the second direction.
  4. A rail extending along the first direction or the second direction of the return channel,
    A runner movable along the rail,
    The hydroponic cultivation system according to any one of claims 2 and 3, wherein the lighting device is removably suspended and held by the runner.
  5.   The illumination device illuminates the cultivation panel immediately after being introduced into the return channel with a first light amount, and illuminates the cultivation panel immediately before collection from the return channel with a second light amount greater than the first light amount, The hydroponic cultivation system according to any one of claims 1 to 4.
  6.   Further comprising a cultivation panel that floats and moves in the return channel, the cultivation panel includes a support member that supports a plant, and a floating member that is attached to the support member and floats the support member in the return channel. The hydroponic cultivation system according to any one of claims 1 to 5.
  7. The forward path and the return path are arranged parallel to each other in the tank,
    The hydroponics system according to any one of claims 1 to 5, further comprising a separator attached to the tank and partitioning the forward path and the return path.
JP2011046630A 2011-03-03 2011-03-03 Hydroponic system Withdrawn JP2012182998A (en)

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JP2016150001A (en) * 2015-02-19 2016-08-22 伊東電機株式会社 Plant cultivation device, and plant cultivation system
JP2016185117A (en) * 2015-03-27 2016-10-27 東芝テック株式会社 Cultivation device, channel, and control program
JP2017524349A (en) * 2014-06-12 2017-08-31 フィリップス ライティング ホールディング ビー ヴィ Method for controlling artificial light plant breeding system

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JP2014198003A (en) * 2013-03-29 2014-10-23 ジャパンドームハウス株式会社 Culture system
JP2017524349A (en) * 2014-06-12 2017-08-31 フィリップス ライティング ホールディング ビー ヴィ Method for controlling artificial light plant breeding system
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JP2016150001A (en) * 2015-02-19 2016-08-22 伊東電機株式会社 Plant cultivation device, and plant cultivation system
JP2016185117A (en) * 2015-03-27 2016-10-27 東芝テック株式会社 Cultivation device, channel, and control program

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