JP2017153471A - Growth-supporting apparatus and plant-growing apparatus - Google Patents

Abstract

A growth assisting device for assisting plant growth by cooling or heating a plant more efficiently. A growth assisting device 100 that cools or warms a plant by blowing a gas locally on the plant P includes a long duct body 102 in which the gas is blown into the inside by a blower device 108, and the plant P A duct 101 having one or a plurality of outlets 103 formed in the duct main body 102 so as to be sprayed toward the local area of the pipe, and a water pipe extending along the duct 101 and through which a cooling liquid or a warming liquid flows. 104. The water flow pipe 104 is configured to cool or warm the gas inside the duct body 102 in the longitudinal direction and adjust the temperature of the gas blown out from the blowout port 103. [Selection] Figure 1

Description

  The present invention relates to a growth assisting device and a plant growing device for assisting plant growth by locally cooling or warming a plant planted in a medium.

  When plants such as vegetables and fruits are cultivated in an indoor cultivation space such as a greenhouse or a factory, the temperature of the cultivation space is generally adjusted in order to effectively grow or harvest the plants. Conventionally, in summer and winter, air-conditioning equipment has been used to cool or heat the cultivation space to maintain the temperature in the cultivation space at a temperature suitable for plant growth. However, such an air conditioning system is considered to be very inefficient because it cools or heats not only plants but also the entire cultivation space. Therefore, various attempts have been made to assist plant growth by locally cooling or heating the plant in order to efficiently control the temperature of the plant.

  For example, Patent Literature 1 discloses a house cultivation system that supplies cold air to a desired part of a plant. The house cultivation system (1) uses at least one row of elevated cultivation beds (3) provided in the house (2). The house cultivation system (1) includes a first duct (11) made of a soft film, a second duct 12 that is harder than the first duct (11), a first duct (11), and a first duct. A plurality of third ducts (13) that intermittently connect the two ducts (12), and a blower (20) that supplies gas to the second duct (12). The first duct (11) is disposed along the elevated cultivation bed (3) so as to pass through the vicinity of a plurality of strawberry seedlings (50) grown from the elevated cultivation bed (3). The first duct (11) has a plurality of holes so that gas is released toward the plurality of strawberry seedlings (50). The second duct (12) is disposed along the elevated cultivation bed (3) so as to pass a position away from the plurality of strawberry seedlings (50) grown from the elevated cultivation bed (3). . And the cold wind (A) produced | generated by the air blower (20) is sent out via a 2nd duct (12), a 3rd duct (13), and a 1st duct (14), and a 1st duct The cool air (A) is discharged from the hole (11a) toward the strawberry seedling (50), thereby cooling the strawberry seedling (50). In addition, the code | symbol of patent document 1 was shown in ().

JP 2009-95293 A

  However, in the conventional house cultivation system, the air discharged by the position of the hole formed in the first duct (cold air in the case of cooling the plant, or hot air in the case of heating the plant) The problem was that the temperatures were significantly different. Specifically, when cooling a plant, in the technique of Patent Document 1, the cold air sent from the blower is heated by the external environment as it goes to the downstream side of the duct. The air discharged from the downstream hole far from the blower is relatively warm with respect to the discharged gas. Alternatively, when warming the plant, as the warm air sent from the blower is cooled toward the downstream side of the duct, it is cooled by the external environment, so for the gas discharged from the upstream hole near the blower, The air discharged from the downstream hole far from the blower is relatively cold. That is, there is a possibility that cooling or heating to a plant planted at a position away from the upstream end of the duct may be insufficient. Therefore, it has been difficult to uniformly and appropriately control the plants arranged in a line in the longitudinal direction. Therefore, in the conventional system, in consideration of the distance between the plant and the blower, it is necessary to set the temperature of the blower so that the load (energy consumption) of the blower increases, and the temperature control efficiency of the plant is increased. The problem was getting very bad. Therefore, there is a need for a system or apparatus that can more uniformly and efficiently control the temperature of a plurality of plants planted apart from each other.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a growth assistance device that assists plant growth by cooling or warming the plant more efficiently, and the growth assistance. It is providing the plant growing apparatus which grows a plant with an apparatus.

The growth assisting device according to claim 1 is a growth assisting device that cools or warms a plant by blowing a gas on the local part of the plant,
A long duct body in which gas is blown inside by a blower, and a duct having one or a plurality of outlets formed in the duct body so as to blow the gas toward the local part of the plant;
A water pipe that extends along the duct and through which a cooling liquid or a warming liquid flows,
The water pipe is configured to cool or warm the gas inside the duct body in the longitudinal direction and adjust the temperature of the gas blown out from the outlet.

  The growth assisting device according to claim 2 is the growth assisting device according to claim 1, wherein the water pipe is spirally wound around an inner periphery or an outer periphery of the duct body. And

  The growth assisting device according to claim 3 is the growth assisting device according to claim 1, wherein the water flow pipe is an elongated body that is disposed inside the duct body and has a quadrangular cross section. Features.

  According to a fourth aspect of the present invention, there is provided the growth assisting apparatus according to the third aspect, wherein the water pipe is a corrugated flexible pipe.

  The growth assisting device according to claim 5 is the growth assisting device according to any one of claims 1 to 4, wherein the duct and the water pipe have flexibility. .

  The growth assisting device according to claim 6 is the growth assisting device according to any one of claims 1 to 5, wherein the duct is formed of a soft film.

  The growth assisting device according to claim 7 is the growth assisting device according to any one of claims 1 to 5, wherein the duct is formed of a foamable heat insulating material.

The plant growing apparatus according to claim 8 is a plant growing apparatus that grows by cooling or heating a plurality of plants by blowing a gas to a plurality of plants planted in a medium.
The medium in which the plurality of plants are planted, or the plurality of plants are planted,
A long duct body that is arranged along the local area of the plurality of plants, and in which gas is blown by a blower, and formed in the duct main body so as to blow the gas toward the local area of the plurality of plants. A duct having a plurality of outlets,
A water pipe that extends along the duct and through which a cooling liquid or a warming liquid flows,
The water pipe is configured to cool or warm the gas inside the duct body in the longitudinal direction and adjust the temperature of the gas blown out from the outlet.

  The plant growing device according to claim 9 is the plant growing device according to claim 8, wherein the water pipe is spirally wound around an inner periphery or an outer periphery of the duct body. Be

  The plant growing apparatus according to claim 10 is the plant growing apparatus according to claim 8, wherein the plant growing apparatus is a long body disposed inside the duct body and formed in a quadrangular cross section.

  According to the growth assisting apparatus of the first aspect of the present invention, the water pipe through which the cooling liquid or the warming liquid passes extends along the duct, and the water inside the duct main body is elongated by the water pipe. The temperature of the gas blown out from the outlet can be adjusted by cooling or heating over the air. That is, in the growth auxiliary device of the present invention, the water pipe functions as a cooling source or a heat source inside the duct when the gas from the blower flows inside the duct. Therefore, the temperature of the gas discharged from the outlet is suppressed from greatly fluctuating under the influence of the external environment according to the distance from the blower. Therefore, the growing assistance device of the present invention can provide efficient temperature control for plants planted away from the upstream end of the duct.

  According to the growth assisting apparatus according to claim 2 of the present invention, in addition to the invention according to claim 1, by arranging the water pipe spirally wound around the inner periphery or outer periphery of the duct body, The gas inside the duct can be effectively cooled or heated.

  According to the growth assisting device according to claim 3 of the present invention, in addition to the invention according to claim 1, a water pipe that is a long body formed in a rectangular cross section is disposed inside the duct body. The gas inside the duct can be effectively cooled or heated.

  According to the growth assisting device of the fourth aspect of the present invention, in addition to the invention of the third aspect, the water flow tube is a corrugated flexible tube, so that the water flow tube in contact with the gas inside the duct body is provided. Increased surface area. Thereby, gas can be cooled or heated more effectively with a water pipe.

  According to the growth assisting device according to claim 5 of the present invention, in addition to the invention according to any one of claims 1 to 4, by providing flexibility to the duct and the water pipe, According to the planting position, the duct and the water pipe can be freely bent and arranged.

  According to the growth assisting device according to claim 6 of the present invention, in addition to the invention according to any one of claims 1 to 5, handling is easy because the duct is formed of a soft film. At the same time, it is possible to easily add a blowout port according to the position of the plant to be temperature controlled.

  According to the plant growing device according to claim 7 of the present invention, in addition to the invention according to any one of claims 1 to 5, the duct is formed of a foamable heat insulating material. The gas can be prevented from being affected by the temperature outside the duct.

  According to the plant growing device of claim 8 of the present invention, the water pipe through which the cooling liquid or the warming liquid passes extends along the duct, and the water inside the duct main body is elongated in the longitudinal direction by the water pipe. The temperature of the gas blown out from the outlet can be adjusted by cooling or heating over the air. That is, in the plant growing device of the present invention, the water pipe functions as a cooling source or a heat source inside the duct when the gas from the blower flows inside the duct. Therefore, the temperature of the gas discharged from the outlet is suppressed from greatly fluctuating under the influence of the external environment according to the distance from the blower. As a result, a gas having an appropriate temperature can be sprayed on each locality of a plurality of plants planted in the medium. Therefore, the plant growing apparatus of the present invention can temperature-control a plurality of plants more uniformly and efficiently, and can grow plants in a more desirable temperature environment.

  According to the plant growing device according to claim 9 of the present invention, in addition to the invention according to claim 8, by arranging the water pipe spirally wound around the inner periphery or outer periphery of the duct body, The gas inside the duct can be effectively cooled or heated.

  According to the plant growing apparatus according to claim 10 of the present invention, in addition to the invention according to claim 8, by arranging a water pipe, which is a long body formed in a square cross section, inside the duct body. The gas inside the duct can be effectively cooled or heated.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic perspective view of the plant growing apparatus of one Embodiment (1st Embodiment) of this invention. The top view of the plant growing apparatus of FIG. FIG. 3 is a cross-sectional view of the plant growing device of FIG. 2 taken along the line AA. The elements on larger scale of the plant growing apparatus of FIG. The schematic diagram which shows the modification of the plant growing apparatus of 1st Embodiment. The schematic diagram which shows the whole structure of the plant growing apparatus of 1st Embodiment. The schematic perspective view of the plant growing apparatus of one Embodiment (2nd Embodiment) of this invention. The top view of the plant growing apparatus of FIG. BB sectional drawing of the plant growing apparatus of FIG. The elements on larger scale of the plant growing apparatus of FIG. The (a) perspective view and (b) front view of the holder of the plant growing apparatus of FIG. The schematic diagram which shows the whole structure of the plant growing apparatus of 2nd Embodiment. The schematic perspective view which shows the plant growing apparatus of another embodiment of this invention. The schematic perspective view which shows the plant growing apparatus of another embodiment of this invention. The top view of the plant growing apparatus of FIG. CC sectional drawing of the plant growing apparatus of FIG. The partial expanded sectional view of the plant growing apparatus of FIG. The schematic perspective view which shows the plant growing apparatus of another embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

  The plant growing device of one embodiment of the present invention grows a plant planted in a culture medium by locally cooling or heating. And the growth assistance apparatus with which this plant growth apparatus was equipped is comprised so that the growth may be assisted and promoted by performing temperature control of a plant efficiently. In the present embodiment, the plant is a strawberry seedling that is cultivated at a high place on a stand in a house environment. In general, in house cultivation of the strawberry seedling P, it is important to cool the strawberry seedling in the summer when the temperature is high and warm the strawberry seedling in the winter when the temperature is low. However, the technical idea of the present invention can also be applied to temperature management in other plants such as fruits, vegetables, flowers, and different planting environments, and the present invention is not limited to the embodiments described below. Not too long.

[First Embodiment]
With reference to FIG. 1 thru | or FIG. 6, the plant growing apparatus 10 and the growth assistance apparatus 100 of 1st Embodiment of this invention are demonstrated. FIG. 1 is a schematic perspective view of the plant growing apparatus 10. FIG. 2 is a schematic plan view of the plant growing apparatus 10. FIG. 3 is a lateral (AA) cross-sectional view of the plant growing apparatus 10. FIG. 4 is a partially enlarged view of FIG. FIG. 6 is a schematic diagram illustrating the overall configuration of the plant growing device 10.

  As shown in FIG. 1, a plant growing apparatus 10 includes a container 11 installed at a high place in a greenhouse such as a greenhouse and a medium 12 formed in the container 11 for planting strawberry seedlings P. And a growth assisting device 100 installed on the culture medium 12.

  The container 11 is a rectangular casing that opens upward, and can hold a predetermined amount of soil. Moreover, the container 11 is comprised by the substantially rectangular parallelepiped shape with a long one side, and has the width direction and a longitudinal direction in planar view (refer FIG. 2). Then, the culture medium 12 is defined on the upper surface of the container 11 by filling the container 11 with the soil. In this embodiment, the width | variety of the container 11 is defined by the dimension (for example, about 0.4 m) which can arrange two strawberry seedlings P in the width direction. On the other hand, the total length of the container 11 is determined by a dimension (for example, about 10 m) in which a large number of strawberry seedlings P can be arranged along the longitudinal direction. Further, the container 11 is supported at a high place in a state of floating from the ground by a gantry 13 composed of a plurality of legs (see FIG. 6). Thereby, the grower can work without bending the waist. In addition, although the container 11 of this embodiment consists of foamed resins, such as a polystyrene foam, you may be comprised with arbitrary materials, such as another hard synthetic resin and wood.

  The culture medium 12 is an area extending in the longitudinal direction with a predetermined width. As shown in FIG. 2, a plurality of strawberry seedlings P are continuously planted in the culture medium 12 at predetermined intervals along the longitudinal direction of the container 11. Two strawberry seedlings P are arranged in the vicinity of both ends in the width direction of the culture medium 12. That is, the seedling rows of the two rows of strawberry seedlings P are linearly arranged on the medium 12 of the plant growing device 10.

  The growth assistance apparatus 100 is installed with respect to the container 11 and the culture medium 12 so that each strawberry seedling P or the culture medium 12 can be locally cooled or heated. The growth assisting device 100 includes a plurality of (three in the present embodiment) ducts 101 arranged along the longitudinal direction of the container 11, and extends so as to follow the respective ducts 101. A plurality (three in this embodiment) of water pipes 104 through which the hot water (warming liquid) passes are provided. A support rail 109 extending along the longitudinal direction is suspended and supported near the side surface of the container 11 or the gantry 13, and the duct 101 and the water conduit 104 are placed and supported by the support rail 109 or the culture medium 12. ing.

  As shown in FIGS. 3 and 4, the duct 101 is formed in the long duct main body 102 through which the gas is blown and the duct main body 102 so as to blow the gas toward the local area of the strawberry seedling P or the culture medium 12. And a plurality of outlets 103. The duct body 102 is a cylindrical body that extends from one end in the longitudinal direction of the container 11 to the other end. The duct body 102 has an inlet through which gas is sent at one end, and the other end is closed (not shown). A duct 107 for blowing is connected to the entrance of the duct body 102. That is, when a gas whose temperature is adjusted is sent from the conduit 107 to the inside of the duct 101, the gas flows from the upstream to the downstream of the duct 101, the pressure inside the entire duct 101 is increased, and cold air or hot air is emitted from each outlet 103. Released. In the present embodiment, the three ducts 101 are respectively connected to the air ducts 107 branched into three. Two ducts 101 are respectively supported by the support rails 109 on both sides of the container 11, and one duct 101 is disposed at a substantially center in the width direction of the culture medium 12. However, in the present invention, the number of ducts can be increased or decreased according to the position of the plant, the area of the culture medium, and the like, and the installation position and installation means of the duct can be arbitrarily changed.

  As shown in FIGS. 3 and 4, a plurality of outlets 103 are perforated above the duct body 102 in the ducts 101 on both sides of the container 11 so as to mainly cool or heat the back of the leaves of the strawberry seedling P. ing. As shown in FIG. 3, the central duct 101 has a plurality of outlets 103 below the duct body 102 so as to mainly cool or warm the crown portion (growth point) of the strawberry seedling P and the culture medium 12. Perforated on the side. The blowout ports 103 are regularly formed over the entire length of the duct body 102 at predetermined intervals at the same position in the circumferential direction. That is, in the plant growing device 10 (or the growth assisting device 100), a plurality of cold air or hot air is blown from the air outlet 103 of the duct 101 to the strawberry seedling P and the medium 12 over the longitudinal direction of the medium 12. The temperature control of the seedling row composed of strawberry seedlings P is performed. However, the present invention is not limited to this embodiment, and the air outlets may be randomly formed at arbitrary positions in the radial direction.

  In the summer, cold air passing through the inside of the duct body 102 is blown from each outlet 103 to the strawberry seedling P or the culture medium 12. The cold air is a gas having a relatively low temperature with respect to the environmental temperature or the outside air temperature (the air temperature outside the duct 101). In the winter season, warm air passing through the inside of the duct main body 102 is blown from each outlet 103 to the strawberry seedling P or the culture medium 12. Hot air is a gas that is relatively hot relative to the ambient temperature or ambient temperature. In this way, local temperature management of the strawberry seedling P is performed so that the strawberry seedling P is not exposed to an extremely high or low temperature environment.

  In this embodiment, the duct 101 is made of a flexible translucent soft resin film, and the material thereof can be selected from polyethylene, polypropylene, polyester, nylon, and the like. As described above, the duct 101 is made of a soft film, so that the air outlet 103 can be easily added at an arbitrary position. Further, since the duct 101 is translucent, the state of the water conduit 104 disposed inside can be visually recognized. In the present embodiment, the diameter of the duct 101 is about 200 mm, but the dimensions can be arbitrarily changed without being limited to the embodiment.

  The water flow pipe 104 is configured to cool or warm the gas inside the duct main body 102 in the longitudinal direction and adjust the temperature of the gas blown out from the blowout port 103 (cooling or keeping warm). Each water pipe 104 extends from the upstream end (one end) to the downstream end (the other end) of each duct body 102 and is wound around the inner periphery of the duct body 102 in a spiral manner. One end and the other end of the water flow pipe 104 are connected to the water supply device 111. Specifically, the water supply side and drain side end portions of the water flow pipe 104 are respectively connected to the pipe 112 of the water supply device 111 via joints.

  Inside the water flow pipe 104, cold water (cooling liquid) or hot water (warming liquid) flows continuously from one end to the other end. In the present invention, the cold water (cooling liquid) does not indicate a liquid having a specific temperature but is a liquid having a temperature at which at least the downstream gas inside the duct body 102 can be cooled (or kept cold). On the other hand, the hot water (warming liquid) does not indicate a liquid having a specific temperature, but is a liquid having a temperature at which at least the gas on the downstream side inside the duct body 102 can be heated (or kept warm). Since the spiral water pipe 104 is arranged inside the duct body 102, the water pipe 104 (and the liquid inside the water pipe 104) suppresses a temperature difference generated from the upstream to the downstream inside the duct 101. It functions to cool or warm the air in the duct 101.

  Specifically, when cooling the strawberry seedling P in a high temperature environment such as summer, cold water is passed through the water pipe 104 inside the duct 101 and air is blown through the water pipe 104 over the longitudinal direction of the duct 101. Air (cold air) blown from the device 108 is cooled or kept cold. That is, the water flow pipe 104 serves as a cold heat source, and the gas in the duct 101 is suppressed from being warmed by the summer air, and the temperature distribution of the gas in the longitudinal direction of the duct 101 is more uniformly maintained. On the other hand, when warming the strawberry seedling P under a low-temperature environment such as winter season, warm water is passed through the water pipe 104 inside the duct 101, and the air blower 108 is provided by the water pipe 104 over the longitudinal direction of the duct 101. The air (warm air) blown from is heated or kept warm. That is, the water pipe 104 serves as a heat source, and the gas in the duct 101 is suppressed from being cooled by the outside air in winter, and the temperature distribution of the gas in the longitudinal direction of the duct 101 is more uniformly maintained. That is, according to the plant growing device 10, the temperature difference between the air blowing from the upstream outlet 103 of the duct 101 and the air blowing from the downstream outlet 103 is suppressed.

  The water conduit 104 of the present embodiment is a flexible resin tube made of polyethylene or the like. Moreover, the diameter of the water flow pipe 104 is about 15 mm. However, the water pipe of the present invention is not limited to this embodiment, and its material and dimensions can be arbitrarily changed.

  In this embodiment, the spiral water pipe 104 is disposed inside the duct body 102, but the present invention is not limited to this embodiment as long as the inside of the duct 101 can be cooled or heated. For example, as in the growth assisting device 100 ′ shown in FIG. 5, the water conduit 104 ′ may be spirally wound around the outer periphery of the duct body 102. Or although the efficiency of cooling or heating falls, you may let a straight cross-section circular water pipe pass inside a duct.

  FIG. 6 is a schematic diagram showing the entire system of the plant growing device 10 of the present embodiment. As shown in FIG. 6, a three-way conduit 107 connected to the three ducts 101 is connected to the blower device 108. The air blower 108 can blow cold air and / or hot air. For example, the air blower 108 may be a general air conditioner configured by a heat exchanger including a compressor, an expansion valve, a condenser, and an evaporator. Cold air or warm air is discharged from the blower 108 so as to flow from the upstream side to the downstream side of the duct 101 through the three-way conduit 107. In addition, in this embodiment, although the gas sent out from the air blower 105 is air, other arbitrary gas may be employ | adopted.

  The water supply device 111 includes a pipe 112 connected to the upstream and downstream ends of the water flow pipe 104 via a joint, and a circulation pump 113 to which the pipe 112 is connected. The upstream piping 112 is disposed in the conduit 107, passes through the tube wall of the conduit 107, and exits from the conduit 107. The circulation pump 113 includes a discharge port and a suction port, and a pipe 112 is connected to each. A pipe 112 on the discharge port side (that is, upstream side) is connected to one end of the water conduit 104, and a pipe 112 on the suction port side (that is, downstream side) is connected to the other end of the water conduit 104. Yes. That is, the liquid sent out from the discharge port of the circulation pump 113 is passed through the pipe 112 on the discharge port side to the water pipe 104. Then, the liquid flowing out from the downstream end of the water conduit 104 flows into the suction port of the circulation pump 113 through the piping 112 on the suction port side. The liquid flowing into the circulation pump 113 is again sent out from the discharge port toward the water pipe 104. Thus, in the plant growing apparatus 10 of the present embodiment, a liquid (cold water or hot water) circulation system is configured. In this embodiment, water is circulated and supplied to the water conduit 104, but other liquids such as oil may be adopted instead of water.

  In the summer, the plant growing device 10 operates to circulate cold water by the circulation pump 113. On the other hand, in winter, the plant growing apparatus 10 operates so as to circulate hot water by the circulation pump 113. In this embodiment, a part (horizontal part) of the water conduit 104 is embedded in the ground. In general, the underground temperature is approximately constant at around 15 ° C throughout the year. The underground temperature is lower than the environmental temperature (outside temperature) in summer, and the underground temperature is lower in winter. Higher than that. Therefore, in the piping 112 buried in the ground, in the summer, the liquid dissipates heat in the ground and becomes colder than the outside air, thereby generating cold water. On the other hand, in winter, hot water is generated by collecting liquid in the ground and becoming hotter than the outside air. That is, the plant growing apparatus 10 of this embodiment adjusts the temperature of the strawberry seedling P by generating cold water or hot water by effectively using underground heat for adjusting the water temperature.

  Hereinafter, the operational effects of the plant growing device 10 and the growth assisting device 100 according to the first embodiment of the present invention will be described.

  According to the plant growing device 10 and the growth assisting device 100 of the present embodiment, the water pipe 104 through which cold water or hot water passes extends along the duct 101. The water pipe 104 can cool or heat the gas inside the duct main body 102 in the longitudinal direction and appropriately adjust the temperature of the gas blown out from the outlet 103. That is, in the plant growing apparatus 10 and the growth assisting apparatus 100 according to the present embodiment, when the air (cold air or hot air) from the blower 108 flows inside the duct 101, the water flow pipe 104 is cooled or heated in the duct 101. Function as. In particular, since the water pipe 104 is wound in a spiral shape, the water pipe 104 or the water pipe 104 accommodated inside the duct body 102 without interfering with the flow of gas (as compared with the case where the water pipe 104 is arranged in a straight shape). It is possible to effectively increase the volume of the liquid. Thereby, the gas inside the duct 101 can be effectively cooled or heated. Therefore, the temperature of the air discharged from the outlet 103 is suppressed from greatly fluctuating under the influence of the external environment according to the distance from the blower 108. As a result, a gas having an appropriate temperature can be sprayed on each local area of the plurality of strawberry seedlings P planted in the medium 12 and the entire longitudinal direction of the medium 12. Therefore, the plant growing device 10 and the growth assisting device 100 of the present embodiment are capable of efficient temperature adjustment over the entire seedling row of the strawberry seedling P, and grow the strawberry seedling P in a more desirable temperature environment. Can do.

[Second Embodiment]
Next, with reference to FIG. 7 thru | or FIG. 12, the plant growing apparatus 20 and the growth assistance apparatus 200 of 2nd Embodiment of this invention are demonstrated. FIG. 7 is a schematic perspective view of the plant growing device 20 according to the second embodiment of the present invention. FIG. 8 is a schematic plan view of the plant growing apparatus 20. FIG. 9 is a horizontal (BB) cross-sectional view of the plant growing device 20. FIG. 10 is a partially enlarged view of FIG. 11A is a perspective view and FIG. 11B is a front view of a holder 205 which is a component of the growth assisting apparatus 200. FIG. FIG. 12 is a schematic diagram showing the overall configuration of the plant growing device 20. In the drawings, the components having the same last two digits in the components indicated by the three digits, and the components having the same last digit in the components indicated by the two digits, unless otherwise specified. Have the same or similar characteristics.

  As shown in FIG. 7, the plant growing device 20 includes a container 21 that is installed indoors such as in a greenhouse and separated from the ground, and a medium 22 formed in the container 21 for planting strawberry seedlings P. And a growth assisting device 200 installed on the culture medium 22.

  The growth assisting device 200 is installed with respect to the container 21 and the medium 22 so that each strawberry seedling P or the medium 22 can be locally cooled or heated. The growth assisting device 200 includes a plurality of (three in this embodiment) ducts 201 arranged along the longitudinal direction of the container 21, and extends so as to follow each of the ducts 201. A water pipe 204 through which warm water (warming liquid) passes. A support rail 209 extending along the longitudinal direction is suspended and supported near the side surface of the container 21 or the gantry 23, and the duct 201 and the water pipe 204 of the growth assisting device 200 are mounted by the support rail 209 and the culture medium 22. And supported.

  As shown in FIGS. 8 and 9, the duct 201 is formed in the long duct main body 202 through which gas is blown, and the duct main body 202 so as to blow the gas toward the local area of the strawberry seedling P or the culture medium 22. And a plurality of outlets 203. The configuration of the duct 201 itself is the same as that of the duct 101 of the first embodiment.

  As shown in FIGS. 9 and 10, a plurality of outlets 203 are perforated above the duct body 202 in the ducts 201 on both sides so as to mainly cool or heat the back of the leaves of the strawberry seedling P. As shown in FIG. 9, the central duct 201 has a plurality of outlets 203 below the duct body 202 so as to mainly cool or warm the crown portion (growth point) of the strawberry seedling P and the culture medium 22. Perforated on the side. The outlets 203 are regularly formed over the entire length of the duct body 202 at predetermined intervals at the same position in the circumferential direction. That is, in the plant growing device 20, seedling rows composed of a plurality of strawberry seedlings P are formed by blowing cold air or warm air from the outlet 203 of the duct 201 to the strawberry seedlings P and the medium 22 over the longitudinal direction of the medium 22. Temperature management is performed.

  The water flow pipe 204 is configured to cool or warm the gas inside the duct main body 202 in the longitudinal direction and adjust the temperature of the gas blown out from the blowout port 203. In 2nd Embodiment, the water flow pipe 204 is a flexible elongate body which has a cross-sectional square shape. That is, the water flow pipe 204 is composed of a rectangular corrugated flexible pipe in which concave portions and convex portions are alternately continuous in the longitudinal direction. And as shown in FIG. 9, the cross section of the water flow pipe 204 is formed in the substantially square shape. Each water pipe 204 is arranged to extend from one end to the other end of each duct body 202 inside the duct body 202. And the one end and other end of the water flow pipe 204 are connected to the water supply apparatus 211 so that water flow is possible. Specifically, the upstream and downstream ends of the water conduit 204 are connected to the pipe 212 via joints.

  Further, the water pipe 204 is held at the substantially center (in the cross section) of the duct main body 202 by the holder 205. As shown in FIG. 9, the holding pipe 205 holds the water flow pipe 204 at substantially the center of the cross section of the duct 201, so that the water flow pipe 204 moves onto the blowout opening 203 in the duct 201 and unexpectedly closes the blowout opening 203. It is prevented.

  FIGS. 11A and 11B are a perspective view and a front view of the holder 205. As shown in FIGS. 11 (a) and 11 (b), the holder 205 is a holder for holding a strip-shaped outer frame portion 205a curved in an arc shape and a duct 201 arranged inside the outer frame portion 205a. A portion 205b and a plurality of beam-like portions 205c connecting the outer frame portion 205a and the holding portion 205b. The outer diameter of the outer frame portion 205 a corresponds to the inner diameter of the duct body 202. In particular, when the duct 201 is made of a soft film that is difficult to maintain its original shape, the outer surface of the outer frame portion 205a abuts against the inner surface of the duct main body 202, so that the duct main body 202 maintains a cylindrical shape by the holder 205 Assisted. The outer frame portion 205a is an opening through which the duct 201 can be inserted into the inner holding portion 205b, and a part thereof is opened. The holding portion 205 b is a thin plate piece that extends in a U shape with one side open, and is configured to fit into the recess of the duct 201. That is, in a state where the duct 201 is held by the holding portion 205 b, the holding portion 205 b engages with the convex portion side wall, and the duct 201 is restricted from moving in the longitudinal direction with respect to the holder 205. Furthermore, the holding portion 205b is connected to the outer frame portion 205a by a plurality of thin rod-like beam-like portions 205c, but there is no other meat portion between the beam-like portions 205c. Therefore, the holder 205 prevents the air permeability in the duct 201 from being lowered as much as possible. In other words, by using the holder 205, it is possible to ensure ventilation through the duct 201 and to ensure that the air is blown from the outlet 203.

  Inside the water pipe 204, cold water (cooling liquid) or hot water (warming liquid) flows from upstream to downstream. And since the water flow pipe 204 is arrange | positioned inside the duct main body 202, the water flow pipe 204 (and the liquid of the inside) ducts so that the temperature difference produced from the upstream end inside the duct 201 to a downstream end may be suppressed. It functions to cool (cold) or warm (keep) the air in 101.

  Specifically, when the strawberry seedling P is cooled in a high-temperature environment such as summer, cold water is passed through the water pipe 204 inside the duct 201 and air is blown through the water pipe 204 over the longitudinal direction of the duct 201. Air (cold air) blown from the device 208 is cooled or kept cold. That is, the water pipe 204 serves as a cold heat source, and the gas in the duct 201 is suppressed from being heated in the external environment, and the gas temperature distribution in the longitudinal direction of the duct 201 is more uniformly maintained. On the other hand, when warming the strawberry seedling P under a low-temperature environment such as winter, hot water is passed through the water pipe 204 inside the duct 201, and the blower 208 is blown by the water pipe 204 over the longitudinal direction of the duct 201. The air (warm air) blown from is heated or kept warm. That is, the water pipe 204 serves as a heat source to suppress the gas in the duct 201 from being cooled in the external environment, and the temperature distribution of the gas in the longitudinal direction of the duct 201 is more uniformly maintained. That is, the temperature difference between the air blowing from the upstream outlet 203 of the duct 201 and the air blowing from the downstream outlet 203 is suppressed.

  In addition, the water flow pipe 204 of the present embodiment is formed of a synthetic resin such as polyethylene and vinyl chloride (but not limited). In the present embodiment, one side of the convex portion is determined to be about 1.35 times as long as one side of the concave portion. Furthermore, in this embodiment, the water flow pipe 204 whose one side of the recess is about 100 mm is employed. However, the dimensions and shape of the water pipe of the present invention can be arbitrarily changed within the technical scope of the present invention, and are appropriately selected according to the type of plant and the area of the culture medium.

  FIG. 12 is a schematic diagram showing the entire system of the plant growing device 20 of the present embodiment. The plant growing device 20 has the same overall configuration as the plant growing device 10 of the first embodiment, and effectively uses geothermal heat to adjust the water temperature, thereby generating cold water or hot water to produce strawberry seedlings. The temperature of P can be adjusted.

  Hereinafter, the operation and effect of the plant growing device 20 and the growth assisting device 200 according to the second embodiment of the present invention will be described.

  According to the plant growing device 20 and the growth assisting device 200 of the present embodiment, the water pipe 204 through which cold water or hot water passes extends along the duct 201, and the water inside the duct body 202 is lengthened by the water pipe 204. The temperature of the gas blown out from the blowout port 203 can be adjusted by cooling or heating over the scale direction. That is, in the plant growing device 20 and the growth assisting device 200 of the present embodiment, when the air (cold air or hot air) from the blower 208 flows through the duct 201, the water flow pipe 204 is cooled or heated in the duct 201. Function as. Furthermore, the surface area of the tube wall of the water flow tube 204 that contacts the gas inside the duct main body 202 is increased by using the water flow tube 204 as a corrugated flexible tube having a square cross section. Thereby, heat transfer between the cooled or heated water pipe 204 and the gas inside the duct 201 is promoted, and the gas inside the duct 201 can be effectively cooled or heated. Therefore, the temperature of the air discharged from the outlet 203 is suppressed from greatly fluctuating under the influence of the external environment according to the distance from the blower 208. As a result, a gas having an appropriate temperature can be sprayed on each local area of the plurality of strawberry seedlings P planted in the medium 22 and the entire longitudinal direction of the medium 22. Therefore, the plant growing device 20 and the growth assisting device 200 of the present embodiment can efficiently adjust the temperature over the entire seedling row of the strawberry seedling P and grow the strawberry seedling P in a more desirable temperature environment.

[Modification]
The present invention is not limited to the above embodiment, and various modifications can be made. Hereinafter, modifications of the present invention will be described. Note that, in each modified example, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise described, and a part of the description is omitted.

(1) In the above embodiment, a spiral flexible tube and a rectangular corrugated flexible tube are used as the water flow tube, but the present invention is not limited to the above embodiment. That is, various forms of water pipes may be employed as long as at least the cooling liquid or the warming liquid can pass therethrough and the temperature change of the blower in the longitudinal direction in the duct can be suppressed. For example, the water pipe may be a straight resin pipe having a circular cross section or a metal pipe having no flexibility.

(2) In the said embodiment, although a duct is formed with a flexible film, this invention is not limited to the said embodiment. For example, the duct may be formed of a foaming heat insulating material made of polyurethane resin, phenol resin, or the like in order to suppress the influence of outside air temperature.

(3) In the plant growing device of the above embodiment, the liquid is circulated by the circulation device and the temperature is adjusted by underground heat, but the present invention is not limited to the embodiment. That is, the liquid supplied from the pipe may be drained after passing through the water pipe. Alternatively, the cooled or heated liquid may be sent into the water pipe by separately providing a cooler or a heater upstream of the water pipe without using the underground heat.

(4) Although the plurality of strawberry seedlings P are linearly arranged in the plant growing devices 10 and 20 of the above-described embodiment, the plurality of strawberry seedlings P may be arranged at random so as to bend or refract. Even in such a case, the ducts 101 and 201 and the water pipes 104 and 204 can be bent or refracted along the plurality of strawberry seedlings P.

(5) The growth assisting device of the present invention can be used in combination with other temperature control devices. FIG. 13 shows a plant growing apparatus 50 according to a modification of the present invention. As shown in FIG. 13, the plant growing device 50 locally cools the strawberry seedling P in proximity to or in contact with the culture medium 52 or the strawberry seedling P in addition to the growing assistance device 500 (similar to the growth assisting device 100). Alternatively, a temperature adjusting device 55 for heating is provided. The temperature adjusting device 55 includes one or a plurality of pipes 55a in which a liquid having a temperature lower or higher than the environmental temperature (for example, cold water or hot water) flows. The tube 55a is a corrugated flexible tube having a quadrangular cross section. The tube 55a is placed on the culture medium 52 at a position where at least one side of the square cross-section of the tube 55a approaches or contacts the strawberry seedling P. The temperature control device 55 has a relatively close area or contact area with the strawberry seedling P or the culture medium 52, because the tube 55a formed in a quadrangular cross section is close to or in contact with the plant at the side (side surface). The strawberry seedling P can be efficiently cooled or heated with a simple configuration. That is, by using the temperature adjusting device 55 in combination with the growth assisting device 500, the temperature management of the strawberry seedling P can be performed more efficiently.

(6) The plant growing device and / or growing assistance device of the present invention can be configured by combining the features of the above embodiments and modifications, or by changing the number and position of the components. For example, FIGS. 14 to 17 show a plant growing device 60 and a growth assisting device 600 according to modifications of the present invention.

  The growing assistance device 600 is installed with respect to the container 61 and the medium 62 so that each strawberry seedling P or the medium 22 can be locally cooled or heated. The growth assisting device 600 includes a plurality of (three in this modification) ducts 601 arranged along the longitudinal direction of the container 61, and extends so as to follow each of the ducts 601, and cold water (cooling liquid) or And a plurality (six) of water pipes 604 through which warm water (warming liquid) passes. Specifically, the three ducts 601 of the growth assisting device 600 are supported and placed by the support rails 609 and the culture medium 62 on both sides of the container 61, respectively. Each duct 601 includes two water pipes 604.

  Each duct 601 has a long duct body 602 through which gas is blown, and a plurality of outlets 603 formed in the duct body 602 so as to blow the gas toward the local area of the strawberry seedling P or the culture medium 62. That is, the configuration of the duct 601 itself is substantially the same as the duct 101 of the first embodiment. The water conduit 604 is configured to cool or heat the gas inside the duct body 602 in the longitudinal direction and adjust the temperature of the gas blown from the blowout port 603. In the present modification, the water conduit 604 is a flexible long body having a square cross section. That is, the configuration of the water pipe 604 itself is substantially the same as the water pipe 201 of the second embodiment.

  As shown in FIG. 16, a plurality of outlets 603 are perforated above the duct body 602 in the ducts 601 on both sides so as to mainly cool or heat the back of the leaves of the strawberry seedling P. As shown in FIGS. 16 and 17, a plurality of outlets 603 are perforated on the side surface of the duct main body 602 in the central duct 601 so as to mainly cool or heat the strawberry seedling P from the inside. The outlets 603 are regularly formed over the entire longitudinal direction of the duct main body 602 at predetermined intervals at the same position in the circumferential direction. That is, the plant growing device 60 and the growth assisting device 600 according to the present modification supply a gas having an appropriate temperature to each local area of the plurality of strawberry seedlings P planted in the medium 62 and the entire longitudinal direction of the medium 62. Can be sprayed.

  Further, in the plant growing device 60, two water pipes 604 are placed on the bottom wall of the duct 601 at a predetermined interval, like the temperature control device 55 in FIG. In particular, the two water pipes 604 are held by the holder 605 at a substantially constant interval. The bottom surface of the central duct body 602 is in contact with the culture medium 62. That is, the bottom surfaces of the two water pipes 604 are in contact with the surface of the culture medium 62 through the thin outer wall of the duct 601. That is, since the bottom surface of the central water pipe 604 formed in a quadrangular cross section along with the bottom surface of the duct 601 is close to or in contact with the culture medium 62, the proximity of the contact area or contact area to the culture medium 62 is relatively large and the culture medium 62 is efficiently It can also be cooled or heated.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10,20 Plant growth apparatus 11,12 Container 12,22 Medium 13,23 Mount 100,200 Growth assistance apparatus 101,201 Duct 102,202 Duct body 103,203 Outlet 104 Water flow pipe (spiral pipe)
204 Water pipe (flexible pipe with square wave)
205 Holder 107, 207 Conduit 108, 208 Blower 109, 209 Support rail 111, 211 Water feeder 112, 212 Pipe 113, 213 Circulation pump P Strawberry seedling (plant)

Claims (10)

A growth assisting device that cools or warms a plant by blowing a gas on the local area of the plant,
A long duct body in which gas is blown inside by a blower, and a duct having one or a plurality of outlets formed in the duct body so as to blow the gas toward the local part of the plant;
A water pipe that extends along the duct and through which a cooling liquid or a warming liquid flows,
The water flow pipe is configured to cool or warm the gas inside the duct main body in the longitudinal direction and adjust the temperature of the gas blown from the blowout port. Auxiliary device.   The growth auxiliary device according to claim 1, wherein the water pipe is spirally wound around an inner periphery or an outer periphery of the duct body.   The said water flow pipe is arrange | positioned inside the said duct main body, and is a elongate body formed in the cross-sectional square shape, The growth assistance apparatus of Claim 1 characterized by the above-mentioned.   The growth auxiliary device according to claim 3, wherein the water flow pipe is a corrugated flexible pipe.   The said auxiliary | assistant apparatus as described in any one of Claim 1 to 4 with which the said duct and the said water flow pipe have flexibility.   The said auxiliary | assistant apparatus as described in any one of Claim 1 to 5 with which the said duct is formed with a soft film.   The said auxiliary | assistant apparatus is formed with a foamable heat insulating material, The growth assistance apparatus as described in any one of Claim 1 to 5 characterized by the above-mentioned. It is a plant growing device that grows by cooling or heating a plurality of plants by blowing gas to a plurality of plants planted in a medium,
The medium in which the plurality of plants are planted, or the plurality of plants are planted,
A long duct body that is arranged along the local area of the plurality of plants, and in which gas is blown by a blower, and formed in the duct main body so as to blow the gas toward the local area of the plurality of plants. A duct having a plurality of outlets,
A water pipe that extends along the duct and through which a cooling liquid or a warming liquid flows,
The water pipe is configured to cool or warm the gas in the duct main body in the longitudinal direction and adjust the temperature of the gas blown out from the outlet. Training device.   9. The plant growing device according to claim 8, wherein the water pipe is spirally wound around an inner periphery or an outer periphery of the duct body.   9. The plant growing device according to claim 8, wherein the water pipe is a long body disposed in the duct body and having a quadrangular cross section.

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