JP2012217392A - Plant cultivation equipment - Google Patents

Abstract

The present invention provides a plant cultivation facility capable of preventing the non-uniformity of the air environment even in a large scale and making the environment suitable for plant growth.
In a plant cultivation facility 1, a plurality of multi-stage cultivation shelves 10 in which a plurality of stages of cultivation shelves 11 are installed in a vertical direction are arranged in a plane, and spaces between the multi-stage cultivation shelves 10 are alternately arranged. The air-conditioned air flows from the lower part and moves upward. The cold aisle 20a closed at the upper part, and the air flowing from the cold aisle 20a through the multistage cultivation shelf 10 moves upward and is provided at the upper part. The hot aisle 20b is exhausted from the exhaust port 5a.
[Selection] Figure 1

Description

  The present invention relates to a plant cultivation facility for growing plants using an artificial lighting device and an air conditioning facility.

  2. Description of the Related Art A facility for growing plants by adjusting a cultivation environment using an artificial lighting device and an air conditioning facility is conventionally known as a plant factory or the like. Thus, when growing a plant by artificial lighting, the cultivation shelf using an illuminating device is used a lot.

  An example of such a plant cultivation facility is shown in FIG. In the plant cultivation facility 200 of FIG. 4, a plurality of cultivation shelves 100 are arranged indoors in the vertical direction or the horizontal direction. In the cultivation shelf 100, the lighting device 103 is disposed above the cultivation bed 107. The illuminating device 103 has a fluorescent tube 111 as a light source. A plant body 109 is arranged on the cultivation bed 107 and cultivated.

  Moreover, it is designed for such a cultivation shelf 100 so that air adjusted in air passes between the plant body 109 and the lighting device 103.

JP-A-1-225420

  The airflow flowing between the plant body 109 and the lighting device 103 moves away from the heat generated by the lighting device 103 or the like. For this reason, in conventional cultivation facilities, the temperature tends to be higher in the vicinity of the plant body 109 located on the downstream side of the airflow.

If a plurality of cultivation shelves 100 with lighting devices 103 are installed in the room on the top, bottom, left, and right, the temperature difference between the upstream side and the downstream side of the airflow tends to increase. Such non-uniformity of the air environment is greatly related not only to heat generation from lighting but also air flow accompanying air conditioning. Since the non-uniformity of the air environment such as temperature and air flow affects the growth and quality of plants, it is desirable that the environment in the cultivation room is as uniform as possible.
In particular, when many plants are cultivated, the cultivation space increases and the number of lighting devices also increases. Since the temperature of the supplied air rises as the time or path affected by the heat generated by the illumination before being exhausted, the temperature non-uniformity becomes remarkable in such a case.

  The present invention has been made in view of the above-described problems, and provides a plant cultivation facility that can prevent the non-uniformity of the air environment and make the environment suitable for plant growth even on a large scale. With the goal.

  1st invention for achieving the objective mentioned above arranges the multistage cultivation shelf which installed the multistage cultivation shelf in the up-down direction in multiple numbers on a plane, and the space between the multistage cultivation shelves alternately, air A plant cultivation facility characterized by being configured as a first space into which the adjusted air flows, and a second space from which the air flowing from the first space through the multistage cultivation shelf is exhausted It is.

It is desirable that an openable / closable door is provided on the second space side of the cultivation shelf, and an opening is provided in the door.
In the first space, it is also preferable that the air that has been air-conditioned flows from the lower part and that the air is exhausted from the upper part in the second space.
It is also desirable that an air supply chamber is provided at the lowermost stage of the multistage cultivation shelf, and air that has been air-conditioned is blown out from the air supply chamber toward the first space.
Furthermore, it is also desirable that the side portion of the first space other than the portion where the multistage cultivation shelf is provided is closed using a hanging curtain that can be vertically expanded and contracted.

  With the above configuration, the first space to which the conditioned air is supplied and the air from the first space flow through the cultivation shelf and are exhausted through the spaces on both sides of the cultivation shelf. Since it comprises as space, the air which picked up the heat | fever of the lighting of the cultivation shelf is exhausted, without affecting the plant body of another cultivation shelf. In this way, since the path through which air passes is short and there are few cultivation shelves in the path, even when the size of the cultivation room is increased, temperature non-uniformity is suppressed and the influence on the plant body is reduced. Can do. Since the scale of the cultivation room can be increased while keeping the temperature uniform, the construction cost is reduced in the case of mass production than when many small-scale cultivation rooms are constructed.

Moreover, when the opening / closing door which has an opening is provided in the 2nd space side of the cultivation shelf, it functions as an air resistance board in the state which closed this, adjusts the air volume which distribute | circulates, and the airflow and temperature in plant cultivation equipment The uniformity can be further improved. On the other hand, when maintaining a plant body or the like, if this is opened, the plant body or the like can be maintained from the second space side. By performing maintenance from the second space for exhausting, the presence of the operator does not affect the airflow passing through the cultivation shelf.
In addition, when air flows from the lower part in the first space and air is exhausted from the upper part in the second space, the air that has become hot due to the heat of the lighting of the cultivation shelf easily moves upward. The air can be efficiently moved from the lower part of the first space to the upper part of the second space.
Moreover, the space-saving in an installation can be achieved by comprising the lower part of a multistage cultivation shelf as an air supply chamber which supplies air to 1st space.
Furthermore, air is discharged | emitted from sides other than a multistage cultivation shelf by closing a side part other than the location in which the multistage cultivation shelf was provided of the 1st space using the hanging curtain which can be expanded-contracted up and down. Or ambient air containing a lot of dust at a high temperature does not flow in from the side, so that the air environment can be easily controlled. Also, the equipment is simple and low cost. Furthermore, even when the heights of the multistage cultivation shelves are different, the side portions can be closed accordingly.

  According to the present invention, it is possible to provide a plant cultivation facility capable of preventing the non-uniformity of the air environment and creating an environment suitable for plant growth even on a large scale.

The figure shown about the schematic structure of the plant cultivation equipment 1 The figure shown about the side surface of the multistage type cultivation shelf 10 of the plant cultivation equipment 1 The figure which shows the example of the door 40 The figure which shows the example of the conventional plant cultivation equipment 200

Hereinafter, embodiments of the plant cultivation facility and the like of the present invention will be described with reference to the drawings.
First, with reference to FIG. 1, FIG. 2, the plant cultivation equipment 1 of this embodiment is demonstrated.

  FIG. 1 is a diagram showing a schematic configuration of a plant cultivation facility 1 of the present embodiment. FIG. 1A shows a schematic configuration in the vertical direction, and FIG. 1B shows a schematic configuration in the plane direction. FIG. 2 is a diagram illustrating a side surface of the multistage cultivation shelf 10 of the plant cultivation facility 1. 2A is a side surface (front surface) on the cold aisle 20a side, and FIG. 2B is a side surface (back surface) on the hot aisle 20b side.

  As shown in FIG. 1, the plant cultivation facility 1 is configured such that a multistage cultivation shelf 10 is arranged in a plurality of rows in a plane direction in a room surrounded by a floor portion 3, a ceiling portion 5, a wall portion (not shown), and the like. The

The lowermost part of the multistage cultivation shelf 10 is configured as an air supply chamber 13 surrounded by the periphery, and the cultivation shelf 11 is arranged in a plurality of stages above and below it.
The space between the adjacent multistage cultivation shelves 10 alternately flows from the bottom, and the cold aisle 20a (first space) and the cold aisle 20a flow before the air before passing through the multistage cultivation shelf 10 flows upward. Is configured as a hot aisle 20b (second space) in which air flowing in through the multistage cultivation shelf 10 flows upward and is exhausted.

  In the cultivation shelf 11, the cultivation bed 31 in which the plant body 30 is arranged is installed in the lower part, and the illumination device 33 using an illumination tube or the like as a light source is arranged thereabove.

  In this embodiment, the cultivation bed 31 is a hydroponics bed that performs hydroponics of the plant body 30 while supplying and discharging the nutrient solution. For this reason, the plant cultivation facility 1 is provided with a nutrient solution circulation mechanism (not shown) such as a pipeline, a nutrient solution tank, and a circulation pump. However, as the cultivation bed 31, an appropriate one is used according to the type of plant and the like, and the cultivation bed 31 is not limited to this.

The illumination device 33 includes a plurality of illumination tubes. The illumination tube uses, for example, an LED or the like as a light source, and emits light upon receiving power supply from a power source (not shown).
In addition, the illuminating device 33 may be provided so that the vertical movement with respect to the cultivation shelf 11 is carried out, and this can be made to go up and down according to the growth condition of a plant, and can adjust the illumination intensity in the position of the plant body 30. Moreover, since illumination intensity can be raised at the position of the plant body 30 by illuminating the illumination device 33 at a low position, the power consumption for increasing the illumination intensity can be reduced.

  The air supply chamber 13 is supplied with conditioned air whose temperature and humidity are adjusted by an air conditioner via a duct (not shown) by a fan or the like. From the air supply chamber 13, conditioned air is blown out toward the cold aisle 20a. In the air supply chamber 13, an air volume adjusting mechanism (not shown) or the like for making the air volume to be blown constant along the longitudinal direction (the depth direction in FIG. 1A) is provided as necessary. As the air volume adjusting mechanism, a known one such as a baffle plate can be appropriately used.

  As shown to Fig.2 (a), in the side surface by the side of the cold aisle 20a of the air supply chamber 13 of the lower part of the multistage cultivation shelf 10, multiple holes for air blowing are formed, Air is supplied to the cold aisle 20a. A filter that covers these holes can be attached to clean the air.

From the ceiling part 5 above the multistage cultivation shelf 10, vertical curtains 17a and 17b, which are hanging curtains that can be expanded and contracted vertically, are suspended.
The vertical curtain 17 a is provided along the longitudinal direction of the multistage cultivation shelf 10, and the lower end thereof reaches the side portion on the cold aisle 20 a side on the upper surface of the multistage cultivation shelf 10. The vertical curtain 17 a is expanded and contracted according to the height of the multistage cultivation shelf 10 so that the lower end reaches the upper surface of the multistage cultivation shelf 10. The upper surface of the multistage cultivation shelf 10 can also be used as a cable arrangement space for arranging a cable (not shown) for supplying power to the lighting device 33 and the like.
Moreover, the vertical curtain 17b is provided at the end of the cold aisle 20a in the longitudinal direction so as to block between the multistage cultivation shelves 10, and the lower end reaches the floor 3 as shown in FIG.
Thereby, the side part of the cold aisle 20a is closed by the vertical curtains 17a and 17b except for the portion corresponding to the side surface of the multistage cultivation shelf 10.

  The upper part of the cold aisle 20a is closed by the ceiling 5 or the like. On the other hand, the ceiling portion 5 of the hot aisle 20b is provided with an exhaust port 5a for exhausting air from the hot aisle 20b. The exhaust port 5a is provided with an exhaust fan or the like, and the discharged air is sent to the above-described air conditioner via a duct (not shown) continuous with the exhaust port 5a.

In the plant cultivation facility 1, the conditioned air blown from the air supply chamber 13 to the cold aisle 20a moves upward and flows from the front surface of the multistage cultivation shelf 10 to the hot aisle 20b through the back surface. Thereby, the heat from the illuminating device 33 of the cultivation shelf 11 is deprived and carried to the hot aisle 20b.
The air deprived of heat from the lighting device 33 and flowing into the hot aisle 20b moves upward and is discharged from the exhaust port 5a provided in the ceiling portion 5 of the hot aisle 20b.

  Here, on the side surface (rear surface) of the cultivation shelf 11 on the hot aisle 20b side, as shown in FIG. 3, an opening / closing door 40 in which a plurality of openings for air circulation are formed may be provided.

  The opening / closing door 40 is, for example, a sliding door that can be opened and closed in the lateral direction. The open / close door 40 of FIG. 3 can be slid in the direction of arrow A in the figure to close, and in the closed state, the open / close door 40 functions as an air resistance plate, thereby adjusting the amount of air flowing and plant cultivation equipment. The uniformity of the airflow and temperature in 1 can be further improved.

  On the other hand, when maintaining the plant body 30 or the like, the opening and closing door 40 is slid in the direction opposite to the arrow A and opened to perform maintenance of the plant body 30 or the like from the hot aisle 20b side. By performing maintenance from the hot aisle 20b side, the presence of the operator does not affect the airflow passing through the cultivation shelf 11. Further, since the sliding door is used, maintenance work with the door open is facilitated. The opening / closing door 40 may be slidable up and down to be opened and closed.

  In addition, the opening / closing door 40 is not restricted to this, For example, an upper part or a side part may be hinge-connected to the cultivation shelf 11, and you may make it open up and down or right and left. Moreover, in the cultivation shelf 11, since the air with heat tends to stay in the upper part, the opening ratio of the door 40 may be larger at the upper part and smaller at the lower part.

  In addition, an air blower or the like for promoting air circulation in the cultivation shelf 11 may be provided in the cultivation shelf 11 so that air is blown from the cold aisle 20a side toward the hot aisle side 20b. Thereby, it can prevent reliably that the air with a heat | fever stays in the vicinity of the plant body 30. FIG.

  As described above, according to the plant cultivation facility 1 of the present embodiment, the cold aisle 20a and the cold aisle 20a from which the conditioned air flows from below and move upward in the spaces on both sides of the multistage cultivation shelf 10, respectively. Since air flows through the multistage cultivation shelf 10 and this is configured as a hot aisle 20b that is exhausted upward, the air picked up from the lighting of the cultivation shelf 11 enters the plant body 30 of another cultivation shelf 11. It is exhausted without affecting. In this way, since the path through which air passes is short and there are few cultivation shelves in the path, even when the size of the cultivation room is increased, temperature non-uniformity is suppressed and the effect on the plant body is reduced. Can do. Since the scale of the cultivation room can be increased while keeping the temperature uniform, the construction cost is reduced in the case of mass production compared to the case where many small-scale cultivation rooms are constructed. Moreover, since the air which took the heat of the illumination of the cultivation shelf 11 and became high temperature is easy to move upwards, air can be efficiently moved from the lower part of the cold aisle 20a to the upper part of the hot aisle 20b.

In addition, it is also possible to supply conditioned air from the upper part with the cold aisle 20a and exhaust from the lower part with the hot aisle 20b. For example, in the cold aisle 20a, conditioned air is blown out from an outlet provided in the ceiling portion 5, and in the hot aisle 20b, the air is exhausted from an exhaust port provided in the floor portion 3. Alternatively, it is possible to supply conditioned air at the upper part of the cold aisle 20a and exhaust air from the upper part of the hot aisle 20b, or supply conditioned air at the lower part of the cold aisle 20a and exhaust air from the lower part of the hot aisle 20b. is there.
The positions of the air supply and exhaust are not limited to those described above. For example, the air supply in the cold aisle 20a is provided with, for example, an air supply chamber under the floor in addition to the air supply chamber 13 and the air outlet of the ceiling portion 5. You may blow off air-conditioned air from the blower outlet provided in the floor part 3. FIG. The exhaust in the hot aisle 20a can also be performed from the side between the multistage cultivation shelves 10, for example, in addition to the exhaust from the exhaust 5a of the ceiling 5 or the exhaust of the floor 3.

Moreover, when attaching the opening / closing door 40 which provided the opening in the back of the hot aisle 20b side of the cultivation shelf 11, in the state which closed the opening / closing door 40, the air volume which distribute | circulates is adjusted and the airflow and temperature in the plant cultivation equipment 1 are adjusted. The uniformity can be further improved. On the other hand, since the maintenance can be performed from the hot aisle 20b side by opening this, the presence of the worker does not affect the airflow passing through the cultivation shelf 11.
Further, by configuring the lowermost part of the multistage cultivation shelf 10 as an air supply chamber 13 for supplying air to the cold aisle 20a, space saving in the facility can be achieved.
Furthermore, by using the vertical curtains 17a and 17b that can be vertically expanded and contracted, the side of the cold aisle 20a other than the portion where the multistage cultivation shelf 10 is provided is closed so that the air is on the side other than the multistage cultivation shelf 10. It is easy to control the air environment without being discharged from the part or surrounding air containing a lot of dust at a high temperature from the side part. Moreover, since the hanging curtain which can be expanded-contracted up and down is used, it can adjust according to the height of the multistage cultivation shelf 10, and can close the space of the cold aisle 20a, and it is also simple and low-cost as an installation.

  The preferred embodiments of the plant cultivation facility and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

1,200 ......... Plant cultivation equipment 5 ......... Ceiling 5a ......... Exhaust vent 10 ......... Multi-stage cultivation shelf 11 ......... Cultivation shelf 13 ......... Air supply chamber 17a, 17b ......... Vertical curtain 20a ……… Cold aisle 20b ……… Hot aisle 40 ……… Opening and closing doors

Claims (5)

Multiple multi-stage cultivation shelves with multiple stages of cultivation shelves in the vertical direction are arranged in a plane,
The space between the multi-stage cultivation shelves, alternately,
A first space into which the conditioned air flows;
A plant cultivation facility, characterized in that it is configured as a second space in which air flowing from the first space through the multistage cultivation shelf is exhausted.   The plant cultivation facility according to claim 1, wherein an openable / closable door is provided on the second space side of the cultivation shelf, and an opening is provided in the door.   The plant cultivation equipment according to claim 1 or 2, wherein the air that has been air-conditioned flows from the lower part in the first space, and the air is exhausted from the upper part in the second space. .   The air supply chamber is provided in the lowest stage of the multi-stage cultivation shelf, and air adjusted in air is blown out from the air supply chamber to the first space side. The plant cultivation equipment in any one of.   The side portion of the first space other than the portion where the multistage cultivation shelf is provided is closed using a hanging curtain that can be vertically expanded and contracted. Plant cultivation equipment as described in.

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