JP2011223892A - Cultivation chamber and air conditioner for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which enables that the environment in a cultivation chamber in a plant factory using artificial light source is inexpensively maintained to be an enviroment suitable for growth of plants.SOLUTION: The air conditioner 21 for a cultivation chamber 20 is internally provided with both of a primary area 22 where lighting 24 generating exhaust heat when lighted is arranged, and a secondary area 23 where plants 25 growing by irradiation of the lighting 24 are arranged. The air conditioner includes: a primary exhauster 27 which exhausts primary air existing in the primary area 22 to the outside of the cultivation chamber 20; a secondary exhauster 28 which exhausts secondary air existing in the secondary area 23 to the outside of the cultivation chamber 20 and is different from the primary exhauster 27; a mixer 29 which cools the secondary air exhausted by the secondary exhauster 28 to eliminate moisture, and mixes the moisture-eliminated secondary air with the primary air exhausted by the primary exhauster 27 to turn the mixed air into conditioned air having a prescribed temperature; and a blow-out device 30 blowing out the conditioned air generated by the mixer 29 to the secondary area 23.

Description

  The present invention relates to a cultivation room and its air conditioner, for example, an energy-saving air conditioner capable of maintaining a cultivation room of a plant factory using an artificial light source in an environment suitable for plant growth at low cost, and this The present invention relates to a cultivation room equipped with an air conditioner.

  The "Development of advanced manufacturing technology using plant functions / Development of basic technology for manufacturing high value-added substances using plants" project started in FY2006 by the Ministry of Economy, Trade and Industry as part of the "Biological Function Utilization Type Recycling Industry System Creation Program" Has been. Specifically, this project includes a genetically modified plant capable of producing high-value-added substances such as novel pharmaceutical ingredients and functional substances, and a closed type for efficiently and safely producing this genetically modified plant. The purpose is to newly develop a genetically modified plant factory.

  This closed-type genetically modified plant factory has a sanitary management that reliably prevents the invasion of insects into the factory and the influx of pathogens through people, things, air, and water. And the so-called Cartagena Act (“Act on Ensuring Biodiversity through Regulations on the Use of Genetically Modified Organisms”, Law No. 97 on June 18, 2003) is required.

Generally, plant factories that grow plants indoors, such as non-recombinant plant factories as well as closed genetically modified plant factories, are generally artificially turned on and off using artificial light sources (illumination) instead of sunlight. As well as the time of day and night (when the lighting is turned on is called the “light period” and when the lighting is turned off is called the “dark period”), the temperature, humidity, CO ₂ concentration, air current, light (intensity, wavelength) In addition, there is a need for reliable control of the cultivation environment according to the plant species to be cultivated, such as the temperature of the culture solution and nutrient composition of hydroponics.

  In the cultivation room of a plant factory, basically, a high illuminance is necessary in order for plants to actively carry out photosynthesis. For example, the light requirement of leafy vegetables such as lettuce is about 15000 lx, and the light requirement of beans such as soybeans is about 50000 lx. Thus, the cultivation room of a plant factory is a considerably bright environment as compared with the general illuminance (usually about 700 lx) of a business establishment. In order to ensure such illuminance, it is necessary to arrange a large number of fluorescent lamps in a cultivation room of a plant factory or to arrange high-power illumination such as a metal halide lamp and a high-pressure sodium lamp.

  On the other hand, in the cultivation room of the plant factory, in addition to the light that is indispensable for the photosynthesis of plants, the temperature and humidity in the cultivation room are independently controlled within the optimum range for promoting the growth of plants, and each set value is set. It is also necessary to be able to change between the light period and the dark period. For example, in the hydroponic cultivation of lettuce, it is desirable to control the air temperature at a light period of 22 to 25 ° C., a dark period of about 20 ° C., and a humidity of about 60% RH.

  FIG. 6A is an explanatory diagram schematically showing an air conditioning method for the cultivation room 1 according to a conventional method that discharges a large amount of exhaust heat (hereinafter referred to as “illumination exhaust heat”) generated by lighting of the above-described lighting. FIG. 6B is an explanatory diagram schematically showing an air conditioning method for the cultivation room 1 according to the conventional method in which the exhaust heat is processed by the air conditioning equipment 2. In addition, the arrow in Fig.6 (a) and FIG.6 (b) shows the flow of air.

  As shown in FIGS. 6 (a) and 6 (b), lighting generated by lighting of a lighting 3 such as a metal halide lamp, a high-pressure sodium lamp, and a fluorescent lamp, which are arranged on the ceiling surface 1a of the cultivation room 1, for example. Waste heat is

  As shown to Fig.6 (a), the suction inlet 4 and the blower outlet 5 are provided in the wall surface 1b of the cultivation room 1, and it discharge | releases outside the cultivation room 1 by operating the air blower 6 provided in the exterior of the suction inlet 4. At the same time, outside air is blown out from the outlet 5 into the inside of the cultivation room 1, and air containing moisture from the plants 7 cultivated by the cultivation shelf 8 arranged on the floor surface 1 c of the cultivation room 1 is Air-conditioning to a temperature and humidity air suitable for the growth of the plant 7 (hereinafter referred to as “air-conditioned air”), or

As shown in FIG.6 (b), the air containing the water from the plant 7 cultivated by the cultivation shelf 8 arrange | positioned on the floor surface 1c of the cultivation room 1 while temperature rising by the illumination exhaust heat by the illumination 3, By reheating after cooling and dehumidifying by the air conditioner 2, the wall surface 1b, the floor surface 1c, or the ceiling surface 1a forming the enclosure of the cultivation room 1 regardless of the volume occupied by the plant 7 to be cultivated as conditioned air. Etc. to supply the whole room of the cultivation room 1.

  However, in the air conditioning shown in FIG. 6A, since the exhaust heat of the lighting is released to the outside of the cultivation room 1, the environmental load is increased and it is contrary to energy saving.

  Further, in the air conditioning shown in FIG. 6B, since it is necessary to reheat the exhaust heat once it is cooled by the air conditioner 2 and then used as air-conditioned air, a large energy cost is required for cooling. This has contributed to the increase in plant production costs and has become a major technical issue in realizing a plant factory.

  FIG. 7 (a) is an explanatory view showing a situation where leaf vegetables 9 such as lettuce are cultivated in the cultivation room 1 of the plant factory, and FIG. 7 (b) shows beans and fruit vegetables 10 such as soybeans and tomatoes. It is explanatory drawing which shows the condition grown in the cultivation room of a plant factory.

  As shown in FIG. 7 (a), when cultivating leafy vegetables 9 such as lettuce, since a very high illuminance is not required, for example, a multistage cultivation shelf 12 in which a large number of fluorescent lamps 11 are arranged in multiple stages is used. Cultivate it.

  On the other hand, as shown in FIG. 7 (b), when cultivating beans and fruit vegetables 10 such as soybeans and tomatoes for harvesting fruits and seeds, the cultivation room cannot produce fruit unless it has high illuminance. It is necessary to arrange the illuminations 3 at a high density 1 or the illuminations 3 with a high output. Furthermore, when cultivating these plants 10, it is necessary to sufficiently secure the ceiling height of the cultivation room 1 as compared with the case of cultivating leafy vegetables 9 such as lettuce in order to secure a space in which the plant height extends. . For this reason, if the whole cultivation room 1 is air-conditioned through the cultivation period by the air conditioning shown in FIGS. 6 (a) and 6 (b), the air volume and conveying power of the air conditioning become extremely large.

  In addition, in the plant 10 having a large plant height such as soybean or tomato, as shown in FIG. 7B, leaves grow between the strains to form a community. The inside of the community is densely populated with leaves and branches, preventing the flow of wind and making it difficult for conditioned air to reach.

  Furthermore, since the water evaporates from the plant 10, the inside of the community where the air-conditioned air is difficult to reach becomes highly humid, and the environment becomes prone to mold and illness.

  The present invention has been made in view of these problems of conventional techniques. For example, it is possible to maintain a cultivation room of a plant factory using an artificial light source in an environment suitable for plant growth at low cost. An object of the present invention is to provide an energy-saving air conditioner that can be used and a cultivation room equipped with the air conditioner.

As a result of intensive studies to solve the above problems, the present inventors have
(A) For example, in a cultivation room of a plant factory, indoor air-conditioning ventilation is divided into an area near an illumination and an area near a cultivation shelf in an ideal sense, and high-temperature air due to illumination exhaust heat is reheated by air-conditioning air. Can be used to maintain the environment of the cultivation shelf in an environment suitable for plant growth at low cost and energy saving,

  (B) The air conditioning air thus obtained is used to locally air-condition the vicinity of the cultivation shelf, for example, air is blown from the surface, preferably the entire surface, above the cultivation shelf and in the immediate vicinity of the plant. By further arranging a porous ventilation path for blowing air-conditioned air toward the plant, the environment of the cultivation shelf can be maintained at an environment suitable for plant growth at low cost and energy saving, and

(C) Furthermore, by making it possible to change the blowout height of the conditioned air from the porous ventilation path according to the plant height of the plant, it has been found that the air-conditioning area can be made the minimum necessary range according to the growth of the plant. The present invention was completed through further studies.

  The present invention is an air conditioner for a cultivation room that includes both a first region in which illumination that generates exhaust heat by lighting is disposed and a second region in which plants that grow by irradiation of the illumination are disposed. And the 1st exhaust apparatus for exhausting the 1st air which exists in the 1st field outside the cultivation room, and the 2nd air which exists in the 2nd field are exhausted outside the cultivation room Therefore, the second exhaust device different from the first exhaust device and the second air exhausted by the second exhaust device are cooled and dehumidified, and the dehumidified second air is converted into the first Mixing the first air exhausted by the exhaust device with the conditioned air having a predetermined temperature, preferably the conditioned air having a predetermined temperature and humidity, and the conditioned air generated by the mixing device with the second air An air conditioner for a cultivation room characterized by comprising a blow-out device that blows out to the area It is the location.

In the present invention, it is desirable that the mixing device has a cooling device for cooling and dehumidifying the second air exhausted by the second exhaust means.
In the present invention, it is desirable that the blow-out device has a blower that sends the air mixed by the mixing device and a ventilation path that guides the air sent by the blower to the second region.

In these present inventions, it is desirable that the first region is provided on the ceiling of the cultivation room and the second region is provided on the lower part of the cultivation room, for example, on the floor.
In these present inventions, the first exhaust device has the first suction port for discharging the first air on the wall surface or ceiling surface of the cultivation room, and the second exhaust device is the second exhaust device. It is desirable to have the 2nd suction port for discharging | emitting air in the wall surface or floor surface of a cultivation room.

In these present invention, while the cultivation shelf for cultivating a plant is arranged in the 2nd field, it is desirable to arrange the ventilation path from the blower to the upper part of the cultivation shelf.
In these present invention, in the portion located above the cultivation shelf in the ventilation path, while being branched upward from the ventilation path, the porosity for blowing out the conditioned air from the surface toward the second region Desirably, a ventilation path is arranged.

In these aspects of the present invention, it is desirable that the porous ventilation path is constituted by a cylindrical body having a plurality of blowout holes formed in the outer wall, or a cylindrical body in which the outer wall is made of a fibrous material.
In the present invention, it is desirable that the porous ventilation path is configured so that the blowout height of the conditioned air can be changed within a range where the plant height of the plant extends.
From another point of view, the present invention is a cultivation room of a plant factory comprising the air conditioner according to the present invention described above.

  ADVANTAGE OF THE INVENTION According to this invention, the cultivation room of a plant factory can be maintained in the environment suitable for plant growth at low cost.

FIG. 1: is a perspective view which shows typically an example of a cultivation room provided with the air conditioner which concerns on this invention in a perspective state while simplifying a part. FIG. 2 is a longitudinal sectional view of a cultivation room provided with an air conditioner according to the present invention. FIG. 3 is a two-side view showing the main part of the blowing device constituting the air conditioner according to the present invention. 4 (a) and 4 (b) are explanatory views showing an adjustment mechanism for the blowout height in the blowout device constituting the air conditioner according to the present invention. FIG. 5 is an explanatory diagram showing a situation in which the blowing height is adjusted by the blowing device. FIG. 5 (a) shows the maximum air volume, FIG. 5 (b) shows the minimum air volume, and FIG. c) shows an arbitrary air volume. Fig.6 (a) is explanatory drawing which shows typically the air conditioning method of the cultivation room by the conventional method which discharge | releases illumination waste heat to the outdoor, FIG.6 (b) is the conventional which processes illumination waste heat with an air-conditioning apparatus. It is explanatory drawing which shows typically the air conditioning method of the cultivation room by a method. FIG. 7 (a) is an explanatory diagram showing the situation where leaf vegetables such as lettuce are cultivated in the plant room, and FIG. 7 (b) shows beans and fruit vegetables such as soybeans and tomatoes in the plant factory. It is explanatory drawing which shows the condition grown in a cultivation room.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view schematically showing an example of a cultivation room 20 including an air conditioner 21 according to the present invention in a partially transparent state while simplifying a part thereof. Moreover, FIG. 2 is a longitudinal cross-sectional view of the cultivation room 20 provided with the air conditioner 21 according to the present invention.

The air conditioner 21 is an air conditioner of the cultivation room 20 of the plant factory. In FIG. 1, in order to make the drawing easy to see, the ceiling surface 20a, the floor surface 20b, and the four wall surfaces 20c that form the casing of the cultivation room 20 are all transparent by showing their respective corners with two-dot chain lines. Shown in state.
A first area 22 and a second area 23 are provided inside the cultivation room 20.

  A large number of lights 24 are arranged in the first region 22. In FIG. 1, only seven illuminations 24 arranged in one row are shown, and other illuminations are omitted for the sake of clarity of the drawing, but in reality, 28 illuminations 24 in four rows cover the entire area of the ceiling surface 20a. Is arranged. Each illumination 24 is an illumination that generates heat when turned on, such as a metal halide lamp, a high-pressure sodium lamp, or a fluorescent lamp.

In the second region 23, a plant 25 that grows by irradiation of the illumination 24 is arranged.
While the 1st field 22 is provided in the ceiling part near ceiling surface 20a of cultivation room 20, the 2nd field 23 is provided in the lower part of cultivation room 20, for example, the floor part near floor 20b, In the case where the plant 25 is a plant having an increased plant height such as soybean or tomato, for example, the space for the growth of the plant 25 can be easily secured, which is desirable, but the first region 22 is formed at a position other than the ceiling. Moreover, the 2nd area | region 23 may also be formed in positions other than a floor part.

The plant 25 is cultivated by the cultivation shelf 26 arranged on the floor surface 20 b included in the second region 23.
The air conditioner 21 includes a first exhaust device 27, a second exhaust device 28, a mixing device 29, and a blowing device 30. These components of the air conditioner 21 will be sequentially described below.

[First exhaust device 27]
The first exhaust device 27 includes a first suction port 31 and a ventilation path 33 that connects the first suction port 31 and the blower 32. The first exhaust device 27 activates the blower 32 to exhaust the first air existing in the first region 22 (illumination exhaust heat of the illumination 24) to the outside of the cultivation room 20. It is.

  The 1st inlet 31 should just be installed in the position which can discharge | emit the 1st air (illumination exhaust heat of the illumination 24) which exists in the 1st area | region 22, and needs to be limited to a specific position. However, for example, it is the ceiling surface 20a or the wall surface 20c of the cultivation room 20, and is near the lighting surface of the illumination 24 and has a good position where a large amount of air whose temperature has increased due to illumination exhaust heat stays. In FIG. 2, it is desirable to provide at a position slightly below the lower end of the illumination 24 from the ceiling surface 20 a of the cultivation room 20. If the installation position is too far from the illumination, the exhaust heat of the illumination cannot be exhausted efficiently. Therefore, it is desirable that the installation is made as close as possible and the distance from the lighting surface of the illumination 24 is 50 cm or less.

[Second exhaust device 28]
The second exhaust device 28 includes a second suction port 34, and a ventilation path 35 that connects the second suction port 34 and a cooling device 36 described later. The second exhaust device 28 activates the blower 32 to generate the second air existing in the second region 22 (high humidity air due to evaporation of moisture from the plant 25) outside the cultivation room 20. It is an exhaust device for exhausting air.

  The 2nd inlet 34 should just be installed in the position which can discharge | emit the 2nd air (high humidity air) which exists in the 2nd area | region 23, and does not need to be limited to a specific position. However, for example, it is the floor surface 20b or the wall surface 20c of the cultivation room 20, and is the position from the floor surface 20b or the wall surface 20c to the tip of the porous ventilation path 39, and is half of the porous ventilation path from the floor surface height. It is desirable to provide an installation height between the heights. In addition, what is necessary is just to determine the length of the porous ventilation path 39 suitably according to the plant height of the plant planted in a cultivation room.

  As shown in FIGS. 1 and 2, the second exhaust device 28 is a different exhaust device completely independent from the first exhaust device 27 described above.

[Mixing device 29]
The mixing device 29 includes a cooling device 36 and a ventilation path 37 that connects the cooling device 36 and the ventilation path 33. The cooling device 36 is a device for cooling and dehumidifying the high-humidity second air exhausted by the second exhaust device 28. In addition, the ventilation path 37 combines the dehumidified second air with the first air exhausted by the first exhaust device 27 that flows in the ventilation path 33 and mixes it with a predetermined temperature, Desirably, it forms conditioned air having a predetermined temperature and humidity.

  As shown in FIGS. 1 and 2, the ventilation path 33 is provided with a damper 33 a for adjusting and blocking the flow amount of the first air flowing in the ventilation path 33, and in the ventilation path 37. Is provided with a damper 37a for adjusting and blocking the flow amount of the second air flowing in the ventilation path 37. The dampers 33a and 37a may be well-known and commonly used as this type of damper, and are not limited to a specific damper.

As the cooling device 36, a well-known and commonly used cooling device may be used, and the cooling device 36 is not limited to a specific cooling device.
Thus, the mixing device 29 cools and dehumidifies the second air (high-humidity air) exhausted by the second exhaust device 28, and the dehumidified second air is converted into the first exhaust device. 27 is an apparatus for mixing with the first air (high-temperature illumination exhaust heat) exhausted by the air 27 to obtain conditioned air having a predetermined temperature.

[Blowout device 30]
FIG. 3 is a two-side view showing the main part of the blowing device 30.
The blowing device 30 includes a blower 32, a ventilation path 38, and a porous ventilation path 39.
The blower 32 is for sending the air mixed by the mixing device 28.

The ventilation path 38 is for guiding the air sent by the blower 32 to the second region 23. The ventilation path 38 is arranged from the blower 32 to above the cultivation shelf 26.
As shown to FIGS. 1-3, the porous ventilation path 39 is from the ventilation path 32 in the part located above the cultivation shelf 26 among the ventilation paths 32 arrange | positioned from the air blower 32 to the upper direction of the cultivation shelf 26. As shown in FIG. A plurality (three in the illustrated example) are arranged to branch upward.

  FIG. 4 is an explanatory view showing a blowing height adjusting mechanism in the blowing device 30, and FIG. 4 (a) shows that the porous ventilation path 39 is constituted by a cylindrical body whose outer wall is made of a fibrous material. FIG. 4B shows a case where the porous ventilation path 39 is constituted by a cylindrical body having a plurality of blowing holes formed in the outer wall. In addition, the left figure of Fig.4 (a) and FIG.4 (b) showed the time when the plant height of the plant 23 was low, and the right figure of Fig.4 (a) and FIG.4 (b) showed the plant height of the plant 23 high. Indicates the time.

  Each porous ventilation path 39 is formed of, for example, a cylindrical body whose outer wall is made of a fibrous material as shown in FIG. 4 (a), or a plurality of porous ventilation paths 39 on the outer wall as shown in FIG. 4 (b). It is desirable to be constituted by a cylindrical body (cylindrical body made of punching metal) having a blowout hole. Thereby, the porous ventilation path 39 can blow out the conditioned air from a part or the whole of the outer peripheral surface of the surface toward the second region 23.

  As shown in FIG. 4 (a), when the porous ventilation path 39 is formed of a cylindrical body whose outer wall is formed of a fibrous material, a part of the porous ventilation path 39 is replaced with a plate 40 or a string. By crushing with 41 or the like, the blowout height of the wind from the porous ventilation path 39 can be easily adjusted, so that the position where the porous ventilation path 39 is crushed may be appropriately changed according to the plant height of the plant 25. .

  In addition, as shown in FIG. 4B, when the porous ventilation path 39 is constituted by a cylindrical body having a plurality of blowing holes formed in the outer wall, a float is formed inside the porous ventilation path 39. Since the height of the wind blown from the porous ventilation path 39 can be adjusted by suspending the drop lid 42 or the drop lid 42, the height of the float or drop lid 42 can be appropriately changed according to the plant height of the plant 25. do it.

In this way, it is desirable that the porous ventilation path 39 is configured so that the height of the conditioned air can be changed within the range in which the plant height of the plant 25 extends.
As described with reference to FIG. 4, after determining the blowing height of the porous ventilation path 39 in the blowing device 30, the air volume is adjusted to the blowing height. The air volume is adjusted by changing the rotation speed of the blower 32 by the inverter 43. An example of the air volume adjustment method will be described below.

  FIG. 5 is an explanatory diagram showing a situation in which the blowing height is adjusted by the blowing device 30. FIG. 5 (a) shows the maximum air volume, FIG. 5 (b) shows the minimum air volume, and FIG. (C) shows the time of an arbitrary air volume.

(I) As shown in FIG. 5A, the maximum blow-out height of the porous ventilation path 39 is L1, the air volume of the blower 32 at that time is Q1, and the rotational speed is N1.
(Ii) As shown in FIG. 5 (b), the minimum blowout height from the porous air passage 39 is determined in advance, the blowout height at that time is L0, the air volume is Q0, and the rotational speed of the blower 32 is N0. To do.

(Iii) In order to blow out at a constant surface wind speed regardless of the blowout height, an air volume proportional to the blowout height may be blown out. Therefore,
Q0 = (L0 / L1) × Q1 (1)
It becomes. On the other hand, the air volume of the blower 32 is proportional to the rotation speed ratio. This can be expressed as an expression:
Q1 / Q0 = N1 / N0 (2)
It becomes. From equation (2), Q0 = (N0 / N1) × Q1 is obtained, and when this is substituted into equation (1),
N0 = (L0 / L1) × N1 (3)
Is obtained.

(Iv) Similarly, as shown in FIG. 5 (c), when blowing from an arbitrary blowing height Lx, the rotational speed Nx is Nx = (Lx / L1) × N1 (4)
It becomes.

  (V) Therefore, if the rotational speed of the blower 32 is adjusted by the inverter so as to be the rotational speed obtained by multiplying the rotational speed N1 at the blowout height L1 by the blowout height ratio Lx / L1, which blowout height In this case, it is always possible to blow out with an appropriate air volume.

According to the present invention, the effects listed below can be obtained.
(1) The air inside the cultivation room 20 is ventilated by dividing it into a zone of high-temperature air near the lighting 24 and a zone of low-temperature and high-humidity air near the cultivation shelf 26 in an ideal sense.
For example, as shown in FIGS. 1 and 2, the suction ports 31 and 34 are arranged separately in the vicinity of the illumination 24 and the vicinity of the cultivation shelf 26, and the air from the suction port 34 is cooled by the cooling device 36 for the purpose of dehumidification. After cooling, the temperature is raised by mixing with high-temperature air from the suction port 31, and the air-conditioned air having the target temperature can be blown to the cultivation shelf 26. Thereby, the illumination exhaust heat etc. of the illumination 24 can be used effectively, and since the same effect as the reheat treatment of the air conditioning can be obtained, energy saving can be achieved. Thereby, the raise of the production cost of the plant 25 can be suppressed.

  (2) A ventilation passage 38 for blowing conditioned air is disposed substantially horizontally in the center of the cultivation shelf 26, and a porous ventilation passage 39 is branched vertically from the ventilation passage 38. As shown in FIG. 3, since only the 2nd area | region 23 which grows the plant 25 by the porous ventilation path 39 can be locally air-conditioned, rather than the system shown in FIG. Since air conditioning can be performed with a small air volume, the conveyance power can be reduced and energy saving can be achieved.

  (3) Since the porous ventilation path 39 incorporates a mechanism for adjusting the blowing height according to the growth of the plant 25 (the height of the plant height) as shown in FIG. 5, the blowing height according to the plant height of the plant 25 is incorporated. After changing the height, by controlling the rotational speed of the blower 32 with the inverter 43 and adjusting the air volume, the air volume can be further reduced, and in addition to the above item, the conveyance power can be reduced to save energy.

  (4) Since the conditioned air close to the set temperature of the peripheral part of the plant 25 can be gently blown out from the porous ventilation path 39 arranged in the immediate vicinity of the apex of the plant 25, It is possible to blow. For this reason, it can control to the temperature environment target value inside the community of the plant 25, and can produce the optimal environment for the growth of the plant 25 easily.

  (5) Since the blowout area 39 can be secured widely by using the porous ventilation path 39, the air conditioning according to the plant height of the plant 25 or the air conditioning at the wind speed that does not give stress to the plant 25 even if it blows from the nearest. In addition to being possible, since the distance between the outlet and the plant 25 is short, variations in temperature can be suppressed.

DESCRIPTION OF SYMBOLS 1 Cultivation room 1a Ceiling surface 1b Wall surface 1c Floor surface 2 Air conditioning equipment 3 Lighting 4 Suction port 5 Blowing port 6 Blower 7 Plant 8 Cultivation shelf 9 Leaf vegetables 10 Beans and fruit vegetables 11 Fluorescent lamp 12 Multistage cultivation shelf 20 Cultivation according to the present invention Chamber 20a Ceiling surface 20b Floor surface 20c Wall surface 21 Air conditioner 22 according to the present invention First region 23 Second region 24 Lighting 25 Plant 26 Cultivation shelf 27 First exhaust device 28 Second exhaust device 29 Mixing device 30 Device 31 First suction port 32 Blower 33 Ventilation channel 33a Damper 34 Second suction port 35 Ventilation channel 36 Cooling device 37 Ventilation channel 37a Damper 38 Ventilation channel 39 Porous ventilation channel 40 Plate 41 String 42 Float and drop lid 43 Inverter

Claims (10)

It is an air conditioner of a cultivation room that includes both a first area where lighting that generates exhaust heat by lighting is arranged and a second area where plants that grow by irradiation of the lighting are arranged,
A first exhaust device for exhausting the first air present in the first region to the outside of the cultivation room;
A second exhaust device different from the first exhaust device for exhausting the second air present in the second region to the outside of the cultivation room;
The second air exhausted by the second exhaust device is cooled and dehumidified, and the dehumidified second air is mixed with the first air exhausted by the first exhaust device to obtain a predetermined A mixing device for temperature conditioned air,
An air conditioner for a cultivation room, comprising: a blow-out device that blows out the conditioned air generated by the mixing device to the second region.   The air conditioner for a cultivation room according to claim 1, wherein the mixing device has a cooling device for cooling and dehumidifying the second air exhausted by the second exhaust means.   The cultivation room according to claim 1 or 2, wherein the supply device includes a blower that sends air mixed by the mixing device, and a ventilation path that guides the air sent by the blower to the second region. Air conditioner.   The said 1st area | region is provided in the ceiling part of the said cultivation room, and the said 2nd area | region is provided in the lower part of the said cultivation room, The cultivation room described in any one of Claim 1- Claim 3 Air conditioner.   The first exhaust device has a first suction port for discharging the first air on a wall surface or a ceiling surface of the cultivation room, and the second exhaust device includes the second air. The air conditioner of the cultivation room described in Claim 4 which has the 2nd suction port for discharging | emitting a gas in the wall surface or floor surface of the said cultivation room.   In the said 2nd area | region, while the cultivation shelf for cultivating the said plant is arrange | positioned, the said ventilation path is arrange | positioned over the said cultivation shelf from the said air blower. The air conditioner of the described cultivation room.   Porous ventilation for branching upward from the ventilation path to the portion located above the cultivation shelf in the ventilation path and blowing out the conditioned air from the surface toward the second region The air conditioner of the cultivation room described in Claim 6 by which a path | route is arrange | positioned.   The air conditioning of a cultivation room according to claim 7, wherein the porous ventilation path is configured by a cylindrical body having a plurality of blowing holes formed in an outer wall or a cylindrical body having an outer wall made of a fibrous material. apparatus.   The air conditioning of a cultivation room according to claim 7 or 8, wherein the porous ventilation path is configured so that the height of the blowout of the conditioned air can be changed within a range in which the plant height of the plant extends. apparatus.   A cultivation room comprising the air conditioner according to any one of claims 1 to 9.

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