KR20050030973A - Apparatus for environment of cultivating/culturing plant, cultivation/culture method and cultivation/culture apparatus - Google Patents

Abstract

A plant cultivation/culture apparatus having an air inlet unit for incorporating outdoor air and a highly humid air-generation unit. In this highly humid air-generation unit, the air inhaled from the air inlet unit and the cultivation room is humidified and then the thus treated air is blown into the cultivation room. Owing to this constitution, water droplets are generated to such an extent as not inhibiting the growth of a plant and the inside of the cultivation room can be maintained in an almost saturated and highly humid state without forming a water pool or dew.

Description

Apparatus for environment of cultivating / culturing plant, cultivation / culture method and cultivation / culture apparatus}

The present invention relates to a cultivation and cultivation environment apparatus, a cultivation and cultivation method, a cultivation and cultivation facility of a plant for maintaining an air environment in a cultivation room for cultivating and cultivating plants such as vegetables and mushrooms at a desired temperature and humidity. will be.

In general, in addition to water, nutrients, and light, the air environment affects plant morphology and growth. The air environment includes temperature, humidity, air flow, gas components in the air, and particulate matter suspended in the air such as dust and bacteria. Conventional plant cultivation and culture methods and cultivation and culture environment apparatuses are disclosed, for example, in Japanese Patent Application Laid-Open No. 2000-324947. Hereinafter, the method and the apparatus will be described with reference to FIG.

In the interior of the cultivation room 101, a cultivation shelf 102 on which plants are placed is provided. Moreover, as an apparatus which adjusts an air environment, the air conditioner 103 which lowers room temperature in the summer, the heater 104 which raises room temperature in winter, and the humidifier 105 which raises humidity are provided. In addition, the ventilation device 106 is provided. Since plants release or consume oxygen or carbon dioxide during growth, the gas concentration and composition in the room change. In order to maintain this gas component, the ventilator 106 sucks indoor air from the indoor side suction unit 107 and discharges it to the outside through the outdoor side exhaust port 108. At the same time, the outdoor air is taken in from the outdoor air inlet 109 and blown out by the indoor air outlet 110. The apparatus for adjusting the air environment is operated in order to adapt the outdoor air thus received to the indoor air environment. In addition, an indoor lamp 111 is provided on the ceiling.

In such a conventional method and apparatus, when the air conditioner 103 is operated, moisture in the air is removed in the process of cooling the air. In addition, when the air is heated for heating, the relative humidity decreases. Therefore, the humidifier 105 is operated to compensate for the decrease in relative humidity. The general air conditioner such as the air conditioner 103 and the heater 104 is controlled to detect the temperature and to turn on / off with the temperature range. That is, during heating, the apparatus is turned off when the detected temperature is lower than, for example, 2 ° C, and the operation is resumed when the temperature is higher than 2 ° C. For this reason, the temperature fluctuates in accordance with the shutdown of the apparatus. The relative humidity fluctuates even in this temperature range, and since the humidifier 105 also detects humidity with a humidity sensor and is controlled on / off with a predetermined humidity width, the fluctuation range is further increased.

In addition, since the temperature and humidity of the air taken in from the outside are generally different from the environmental conditions of the indoor air, it becomes a disturbance factor in controlling the temperature and humidity. In this way, when the apparatus for adjusting the air environment is operated, temperature and humidity fluctuate necessarily, and therefore, it is required to suppress fluctuations in temperature and humidity. In particular, a high humidity environment of 90% or more is required to suppress plant dryness and transpiration, and the higher the humidity, the smaller the allowable range of variation.

In addition, when the relative humidity is controlled at a high humidity of 90% or more, since the fluctuation range of the above-mentioned temperature and humidity is large, the moisture in the air tends to be oversaturated, and condensation is formed not only on the wall of the cultivation room but also on the cultivation surface. In addition, the diameter of water droplets (hereinafter referred to as "water droplets") generated from a spray nozzle or an ultrasonic humidifier as a humidifier is large enough to be visible. That is, since these humidifiers spray water droplets in a state of oversaturation of 100% or more, most of the water droplets fall on the floor or the plant and make water. Moisture once accumulated is difficult to evaporate because of high humidity conditions, and bacteria grow in residual water such as dew condensation and water clots, thereby inhibiting growth and quality of the cultivation. Therefore, there is a demand for an environment in which water droplets and drips do not occur even at high humidity.

BRIEF DESCRIPTION OF THE DRAWINGS The top view of the cultivation room which shows the system structure of the plant cultivation and culture environment apparatus which concerns on Example 1 of this invention.

2A is a cross-sectional view of a high humidity air generating unit of a plant cultivation and culture environment device according to a second embodiment of the present invention.

FIG. 2B is a longitudinal sectional view of the high humidity air generation unit of FIG. 2A; FIG.

3 is an elevation view showing a system configuration of a plant cultivation and culture environment apparatus according to a third embodiment of the present invention.

Figure 4 is a block diagram showing the configuration of the water temperature setting unit, the humidity control unit, the blowing amount change unit, the carbon dioxide concentration adjustment unit of the plant cultivation and culture environment apparatus according to the fourth embodiment of the present invention.

5 is an elevation view of a duct arrangement showing a configuration of a plant cultivation and culture environment apparatus according to a fifth embodiment of the present invention.

6 is a system diagram showing a conventional plant cultivation and culture environment apparatus.

(Explanation of symbols for the main parts of the drawing)

1 doorway 2 intake duct

3 Outside air intake port 4 Outside air intake wire

5 exhaust duct 6 exhaust vent

7 Outdoor exhaust line 8 Indoor return duct

9 inlet 10 return confluence

11 Intake air control valve 12 Steam piping

13 Steam Spray Nozzles 14 Indoor Supply Duct

15 outlet 16 supply branch

17 Displacement control valve 18 Return duct

19 High Humidity Air Generation Section 20 Supply Duct

21, 46 Blown out wire 22, 45 Suction out wire

23 Blower 24 Sprayer

25 Gas-liquid separator 26 Water tank

27 Water temperature control unit 28 Spray tower

29 Nozzle 30 Injection Pipe

31 Pump 32 External Cylinder

33 inner cylinder 34 cyclone tower

35 Blowing Duct 36 Joint Duct

37 Heather 38 Drainage

39 Communication tube 40

41 Channel 42 Inlet

43 Air vent 44 Air conditioner

47 Cultivation object 48 Temperature sensor

49 humidity sensor 50 water temperature sensor

51 temperature detection circuit 52 micro

53, 57 switch 54 temperature input circuit

55 Heater Output Circuit 56 Humidity Detection Circuit

58 Humidity input circuit 59 Pump speed control circuit

60 Blower Speed Control Circuit 61 Carbon Dioxide Concentration Sensor

62 Carbon dioxide concentration detection circuit 63 Electric valve drive circuit

64 motor 66 drip hole

67 Drainage Tube 68 Drainage Feet

81 Planting Room 82 Planting Shelf

101 Planting Room 102 Planting Shelf

103 Air conditioners 104 Radiators

105 Humidifier 106 Ventilator

107 Indoor intake 108 Outdoor exhaust

109 Outdoor side air intake 110 Indoor side outlet

111 indoor lighting

The plant cultivation / cultivation apparatus according to the present invention has an intake section for receiving outdoor air and a high humidity air generating section. The high humidity air generating unit humidifies the air sucked from the intake unit and the cultivation chamber, and blows out the treated air into the cultivation chamber.

Best Mode for Carrying Out the Invention Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same structure and detailed description is abbreviate | omitted.

(Example 1)

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the cultivation room which shows the system structure of the plant cultivation and culture environment apparatus which concerns on Example 1 of this invention. The doorway 1 is provided in the cultivation room 81 which grows and cultures a plant. Moreover, the intake duct 2 has penetrated the wall of the cultivation chamber 81, and the front end is opened as the outside air intake port 3. As shown in FIG. For this reason, the outside air is taken in to the cultivation chamber 81 like the suction flow line 4. The intake duct 2 and the outside air intake port 3 constitute an intake section. In addition, the exhaust duct 5 penetrates the wall of the cultivation chamber 81 as an exhaust part for discharging the air in the cultivation chamber 81 to the outside, and the tip is opened as the exhaust port 6. For this reason, the air in the cultivation chamber 81 is discharged | emitted to the outdoors like the exhaust flow line 7. In addition, as an exhaust part which exhausts the air of the cultivation room 81 to the outside, the opening part (not shown) in the clearance gap of the doorway 1 or the wall surface can also be used.

The cultivation room 81 is provided with an indoor return duct (hereinafter referred to as a duct) 8 to circulate air in the room. A plurality of suction ports 9 are provided in the duct 8 to equalize air circulation in the cultivation chamber 81. The duct 8 and the suction port 9 constitute a suction part. The duct 8 is connected to the return confluence part (hereafter confluence part) 10, and the intake duct 2 is connected to the confluence part 10 via an intake air amount adjustment valve (hereinafter, a valve) 11. . In addition, the confluence part 10 is provided with the heating humidification part which heat-humidizes the air | air intake | exhausted. Specifically, the steam spray nozzle 13 provided in the steam piping 12 from a steam boiler (not shown) is provided behind the valve 11. In addition, the cultivation chamber 81 is provided with an indoor supply duct (hereinafter referred to as a duct) 14 for the purpose of air circulation, and the duct 14 is blown out so that the air circulation in the cultivation chamber 81 is equalized. The sphere 15 is appropriately attached. The duct 14 and the blowout port 15 comprise the blowout part. The duct 14 is connected to a supply branch (hereinafter referred to as branch) 16. An exhaust duct 5 is connected to the branch portion 16 via an exhaust amount adjustment valve (hereinafter referred to as a valve) 17. The valves 11 and 17 respectively constitute an intake air amount adjusting portion and an exhaust amount adjusting portion. The return duct 18 connects the confluence part 10 and the high-humidity air generating part (generation part) 19 which incorporates a blower part, and the supply duct 20 has the generation part 19 and the branch part 16. ) Is connected.

In the above configuration, the air in the cultivation chamber 81 is mixed with the outside air sucked from the intake duct 2 in the confluence unit 10 and then humidified so as not to cause condensation in a state close to water vapor saturation by the generator 19. do. When the outside air temperature is low, since the steam spray nozzle 13 heats and humidifies the outside air before mixing the outside air, the circulating air is maintained at high humidity regardless of the large or small intake amount. Thereafter, the blower cable 21 is blown out evenly, and the culture chamber 81 is circulated by the suction wire 22. For this reason, since the performance of the generator 19 is maintained even when the outside air is low and the humidity is low, the interior of the cultivation room 81 is maintained in a nearly saturated high humidity environment. In addition, the amount of outside air introduced is adjusted by the valve 11, and the amount of air exhausted from the cultivation chamber 81 is adjusted by the valve 17. For this reason, the cultivation room 81 can be maintained at a positive pressure irrespective of the large or small intake amount of air, and outside air does not enter the cultivation room 81 other than the suction duct 2. Moreover, since the valve 11 and the valve 17 are provided, the mixing amount of the outside air which becomes a cause of fluctuation of temperature and humidity is suppressed to the minimum.

In addition, in this embodiment, although the exhaust duct 5 was connected to the branch part 16, you may install independently so that the cultivation chamber 81 and external air may be conducted. In addition, in the present Example, the steam spray nozzle 13 is provided and it heat-humidizes after taking in outside air. In place of the steam spray nozzle 13, a heating part such as a steam coil, a hot water coil, a heater, or the like may be used, and the same effect can be obtained.

(Example 2)

2A and 2B show the configuration of the high humidity air generating unit (hereinafter, referred to as a generating unit) 19. The generator 19 includes a blower 23, a sprayer 24, a gas-liquid separator (hereinafter referred to as a separator) 25, a water tank 26, and a water temperature control unit (composed of a heater). 27). The structure of the whole cultivation and culture environment apparatus is the same as that of FIG.

The sprayer 24 sprays the water drawn up from the water tank 26 and divides it into fine water droplets. The spraying unit 24 has a spray tower 28, a spray pipe 30, and a pump 31. The injection pipe 30 is piped in the injection tower 28 and has a plurality of nozzles 29 for spraying water. The injection pipe 30 is connected to the water tank 26 via the pump 31. The injection tower 28 consists of a double cylinder inside and outside, the outer cylinder 32 is connected to the blower 23, and the inner cylinder 33 is connected to the cyclone tower 34. As shown in FIG. The blower 23 sucks air from the indoor return duct 8 and blows it into the injection tower 28 to form a swirl flow of air in the injection tower 28, and blows it to the cyclone tower 34. . The blowing duct 35 connected to the blower 23 communicates with the upper part of the outer cylinder 32 of the injection tower 28.

The cyclone tower 34 forms the separation part 25, and receives the fine water droplet which the spraying part 24 generate | occur | produced by the division | segmentation of water droplet with a swirl flow of air. And gas-liquid separation is carried out by centrifugal action which arises by turning of air. That is, the cyclone tower 34 separates most of the large water droplets from among the fine water droplets, and contains a large amount of ultra-fine water droplets having a diameter of 1 μm or less, preferably 0.5 μm or less, more preferably 0.1 μm or less. Air to be discharged to the outside of the generator 19.

The connecting duct 36 connects the cyclone tower 34 and the inner cylinder 33 of the injection tower 28. The inner cylinder 33 is piped up and down to the center part of the outer cylinder 32 of the injection tower 28, and has the header 37 which protruded in the circumferential direction. The injection pipe 30 stands up above the header 37, and is equipped with the header 37 concentrically, and the many nozzle 29 is provided toward the inner surface of the outer cylinder 32. As shown in FIG. In addition, the lower end opening position of the inner cylinder 33 is set to the height which the water droplet sprayed from the nozzle 29 does not directly enter.

The water tank 26 is a tank which fills the water sent to the injection pipe 30. An overflow port (not shown) is provided in the water tank 26, and a constant water level is maintained by always being supplied with water by a water supply port (not shown) and draining to the overflow port. The water tank 26 is supplied into the spray tower 28 to recover the remaining water generated in the spray tower 28 and the water separated from the cyclone tower 34. The bottom of the water tank 26 and the cyclone tower 34 are connected by the drain part 38, and the lower part of the injection tower 28 is also connected by the communication pipe 39. As shown in FIG.

For this reason, the water filled in the water tank 26 circulates in a cabin, and a part of the circulating water flows into the injection tower 28, and it collects in the lower part. As a result, the upper part of the injection tower 28 becomes the upper wind path part 40 through which air flows, and the predetermined range of the lower part is filled with circulating water and becomes the water channel part 41. That is, the injection tower 28 is divided into the air passage part 40 and the water passage part 41.

The operation of the generation unit 19 will be described below. The air sucked by the blower 23 descends while turning along the inner surface of the outer cylinder 32 from the suction port 42 of the injection tower 28. On the other hand, the water in the water tank 26 is pumped out by the pump 31, sprayed by each nozzle 29 of the injection pipe 30, collides with the inner surface of the outer cylinder 32, and it divides into fine water droplets. And it stirs in contact with the air stream which descend | falls, turning inside the outer cylinder 32. As shown in FIG. Most of the water droplets ejected from the nozzle 29 are dropped into the waterway portion 41 along the inner surface of the outer cylinder 32 as it is, and returned to the water tank 26 for circulation.

The fine water droplets generated in the spraying part 24 are inverted from the water surface of the water channel part 41 by the swirling flow of air, flow into the inner cylinder 33, and are also sent into the separating part 25. Due to the centrifugal force action caused by the turning while descending while turning the cyclone tower 34, the fine droplets in the turning air and the fine dust contained in the air are centrifuged. The water droplets are returned to the water tank 26 along the inner wall of the cyclone tower 34 together with the dust, and the air having high humidity is inverted to rise and discharged from the air supply 43 of the cyclone tower 34 to the outside of the generator 19. do.

In the above configuration, the generation unit 19 can set the indoor air and the outside air to a high humidity state of 100% humidity. If the water temperature is adjusted, the extraction temperature can be adjusted by the temperature difference between the water temperature and the intake air temperature. When heating is required together with humidification, the air once the temperature has risen is cooled by the surrounding air and becomes supersaturated. For example, when the desired temperature is 15 ° C. and the humidity is 100%, when the water temperature is increased to about 17 ° C. and sprayed, the water is blown out at 17 ° C. at a humidity of 100%, cooled by ambient air, and becomes supersaturated. However, the generation unit 19 includes ultrafine water droplets of 1 µm or less, preferably 0.5 µm or less, more preferably 0.1 µm or less, in the discharged air. In supersaturated air, water droplets of this size are less likely to generate water droplets, water clots or condensation on the floor or the surface of the plant. This is compared to water droplets of several micrometers to several tens of micrometers generated by ultrasonic humidifiers or nozzle sprays, and these droplets tend to diffuse into the air and are unlikely to settle down naturally. Presumably because The generator 19 can thus discharge the air in the state of almost supersaturated steam, in which water droplets dripping off or condensation are unlikely to occur. Thus, by adjusting the water temperature in this embodiment, it is possible to suppress fluctuations in humidity even in a state close to saturation humidity, and to reduce the supersaturated water in the air.

(Example 3)

FIG. 3 is an elevation view of FIG. 1, in which a high humidity air generating unit (hereinafter, generating unit) 19 is provided in the cultivation chamber 81 for growing and cultivating plants. The indoor supply duct 14 for the purpose of air circulation is provided in the cultivation room 81, and the blowout port 15 is attached below the floor vicinity. In addition, an indoor return duct (hereinafter referred to as a duct) 8 for air circulation is provided in the cultivation chamber 81, and an intake port 9 is attached to the upper ceiling. The air conditioner 44 is mounted near the cultivation room ceiling, and sucks indoor air like the suction flow line 45, adjusts temperature and humidity, and blows it out like the blowout flow line 46. In addition, the cultivation object 47 is mounted on the cultivation shelf 82 in the cultivation room 81. In addition, a temperature sensor 48 serving as a room temperature detector for detecting temperature in the cultivation chamber and a humidity sensor 49 serving as a humidity detector for detecting an atmospheric humidity of a cultivation / cultivation target object in the cultivation chamber are provided in the cultivation shelf 82.

In the above configuration, the air blown out from the air conditioner 44 in the same manner as the blown out flow line 46 reaches the region of the intake flow line 22 leading to the intake port 9 provided in the duct 8, thereby generating a portion ( 19) is introduced. For this reason, the ratio which the air blown out from the air conditioner 44 reaches the cultivation object 47 becomes small, and since the ratio which the temperature and humidity fluctuate with this blown air decreases, high humidity is maintained. In addition, the air is introduced into the generating unit 19 after the air conditioner 44 performs pretreatment of humidity control or temperature / humidity control. By the pretreatment of the air conditioner 44, the generator 19 can cope with a large fluctuation in temperature and humidity, that is, a large fluctuation in temperature and humidity load.

In addition, the air circulating through the cultivation chamber 1 reaches the intake port 9 from the blowout port 15 via the cultivation object 47 placed on the cultivation shelf 82. In this way, the suction port 9 is located downstream of the cultivation object 47 of the air flow in the cultivation chamber 81. For this reason, the air whose temperature and humidity are fluctuate | varied by cultivation etc., and whose humidity fell is attracted to the suction port 9 side quickly, and is discharged | emitted from the inside of the cultivation chamber 81, and circulating humidity process is carried out. In addition, a blowout port 15 through which almost supersaturated high-humidity air is discharged is provided below the cultivation object 47, and an air inlet 9 for circulation of air is provided above the cultivation object 47. For this reason, when a cultivation is heated by self-heating or infrared rays of the cultivation, the temperature of the surrounding atmosphere rises, an upward airflow occurs, and is sucked from the inlet 9 of the air circulation and circulated. That is, heat generated in the growing room is quickly discharged from the growing room to maintain high humidity.

(Example 4)

4 shows the configuration of the water temperature setting unit in the high humidity air generating unit (hereinafter, referred to as the generating unit) 19. The temperature sensor 48 which detects the temperature in a cultivation chamber, and the water temperature sensor 50 provided in the water tank respectively output a temperature signal to the microcomputer 52 via the temperature detection circuit 51. As shown in FIG. In addition, a switch 53 for inputting and setting a temperature value is connected to the microcomputer 52 via a temperature input circuit 54. The program which drives the water temperature control part 27 is set by the heater output circuit 55 until the microcomputer 52 becomes a set temperature value.

4 has shown the structure of a humidity control part. The humidity sensor 49 which detects the humidity in the cultivation room 81 outputs a humidity signal to the microcomputer 52 through the humidity detection circuit 56. In the microcomputer 52, a switch 57 for inputting and setting the humidity value is connected via the humidity input circuit 58. In the microcomputer 52, a program for controlling the operation speed of the pump 31 by the pump speed control circuit 59 is set so that the set humidity is set. This program, for example, when the detected humidity is lower than the set value, operates the pump at the maximum rotational speed, humidifies with 100% saturated air, and approaches the set value. When the detected humidity exceeds the set value, the number of revolutions is lowered, the amount of sprayed water is lowered, the amount of humidification is dropped, and the change in the detected humidity is preferably detected and fed back. In this way, the optimum humidification can be performed by selecting the optimum rotational speed. As described above, by adjusting the humidity of the air to be blown, the generation unit 19 can emit almost supersaturated air that is difficult to mist at the time of blowing out compared with the room temperature.

In addition, since water droplets of 1 µm or less, preferably 0.5 µm or less, and more preferably 0.1 µm or less are more likely to penetrate into the interior, water is supplied to the plant, and the water evaporating by plant breath is replenished. . Considering the amount of water that penetrates, when the setting value inputted from the switch 57 for inputting the humidity value is lowered and inputted to the microcomputer 52 for operation, the humidity condition for maintaining the moisture retained by the plant is lowered. Can be cultured. A cultivation that required 100% humidity in a conventional air environment is that 100% humidity is appropriate for the amount of evapotranspiration to maintain the retained moisture of the plant. On the other hand, in the air containing ultrafine droplets of 1 µm or less, preferably 0.5 µm or less, and more preferably 0.1 µm or less, the penetration and absorption into plants by the ultrafine droplets is increased. For this reason, even if it is less than 100% of humidity atmosphere, it is estimated that the evaporation and moisture replenishment of water from a plant will equilibrate.

4 has shown the structure of a blowing amount change part. The rotation speed control circuit 60 of the blower 23 is connected to the microcomputer 52. The microcomputer 52 sets a so-called 1 / f fluctuation control program that changes the air volume and generates wind speed fluctuations close to natural wind. By making the same change as the wind of nature in this way, it promotes the increase of condensation of water droplets when the wind speed is fast. In addition, this fluctuation control can also be comprised by the circuit provided separately from the microcomputer itself as shown, for example in Unexamined-Japanese-Patent No. 6-129389.

4 shows the structure of the carbon dioxide (CO ₂ ) concentration adjusting unit. The carbon dioxide (CO ₂ ) concentration sensor 61 installed in the indoor return duct 8 outputs the CO ₂ concentration as a signal to the microcomputer 52 through the CO ₂ concentration detection circuit 62. When the microcomputer 52 detects a CO ₂ concentration equal to or greater than a preset value, the microcomputer 52 drives the motor 64 directly connected to the intake air amount adjustment valve 11 through the electric valve driving circuit 63 to open the intake air amount adjustment valve 11. The program is set. The program also controls to close the intake air amount adjustment valve 11 by driving the motor 64 when it detects a value less than or equal to a preset value. In this way, when the carbon dioxide concentration is lowered, the amount of intake air is reduced. For this reason, the load fluctuation by the suction of outside air can be suppressed, humidity fluctuation can be suppressed, and high humidity can be maintained.

In the above configuration, for example, when the room temperature is 18 ° C. and the water temperature is set to 2 ° C. higher than the room temperature, the microcomputer 52 detects the water temperature and the room temperature, and energizes the water temperature control unit 27 so that 20 ° C. Increase the water temperature until By adjusting the water temperature higher than the room temperature in this manner, the high-humidity air generating unit 19 blows out almost supersaturated air that is hard to be misted at the time of blowing out. For example, if the detection humidity is 95% and the humidity is set to 90%, the setting humidity is low relative to the detection humidity, so that the microcomputer 52 performs the control of lowering the rotation speed of the pump 31. When the rotation speed of the pump 31 is lowered, the amount of spraying is lowered, the amount of generation of fine water droplets is reduced, and the amount of humidification is reduced. In addition, fine water droplets are less likely to be condensed than the constant wind speed due to the strong rhythm of the 1 / f fluctuation. In addition, when the indoor CO ₂ concentration increases, the microcomputer 52 opens the intake air amount adjustment valve 11 by the motor 64 to reduce the CO ₂ concentration.

In addition, in the present embodiment, although microcomputer control is used as a control specification of the water temperature setting unit and the humidity adjusting unit, sequencer control, temperature difference sensor, or the like may be used in place of the microcomputer control. In addition, although the heater was used as the water temperature control unit 27, steam heating or the like may be used. In addition, although the humidity generated by the high-humidity air generating unit 19 is adjusted by controlling the pump rotation speed, the amount of sprayed water may be adjusted by another method such as a flow regulating valve. The microcomputer 52 also serves as a water temperature setting unit, a humidity control unit, a blowing amount change unit, and a CO ₂ concentration adjustment unit, but may be separately installed.

(Example 5)

Fig. 5 is an elevation view of a duct arrangement showing the construction of a plant cultivation and culture environment apparatus according to a fifth embodiment of the present invention. An indoor supply duct (hereinafter, referred to as a duct) 14 is connected to the blowout side of the high humidity air generating unit 19. The air outlet 15 is suitably attached to the duct 14 so that circulation in the cultivation chamber 81 may be equalized. The duct 14 is enclosed below the bottom, and the inclination θ1 is set so that water flows. At the lowest end of the duct 14, a drain hole 66 is provided as a drainage portion, and is piped to the drainage pit 68 via the drainage tube 67. The indoor return duct (hereinafter duct) 8 is also arranged with the inclination θ2 so that water flows, and at the lowest part of the tip, there is a drain hole 66 as a drain, and a drain tube 67 It is piped to the drain pit 68 via.

Air blown out from the high humidity air generating unit 19 may cause condensation in the duct 14 due to a temperature difference from the duct wall surface temperature of the duct 14. In the above structure, the dew condensation water droplet is introduced into the tip end of the duct 14 by the duct inclination θ1 and drained out of the drip hole 66, so that no condensation water accumulates in the duct. Similarly with respect to the duct 8, even if it condenses in the duct 8, the water droplets are drained out of the dripping holes 66. For this reason, condensation droplets do not stay in the cultivation chamber 81, and since there is no dripping or scattering from the outlet 15, the growth and inhibition of the growth of germs caused by adherence of the droplets to the cultivation are prevented. Disappear.

According to the present invention, since the outside air received from the intake duct is humidified and supplied to the room, the outside air is supplied in a state of 100% humidity. Therefore, the humidity fluctuations in a cultivation room are small. In addition, it is possible to prevent the generation of water droplets, water clots or condensation to the extent that it does not inhibit the growth of the cultivation target.

In addition, the system can be used in a humidity environment of 90% or less due to the permeability of ultra-fine water droplets as well as a high humidity environment, for example, even a plant having a lower limit of 60% can be grown in a 50% environment. In addition, the effect of eliminating the irregularity of room temperature in the circulation airflow and the infiltration and moisturizing of the fine water droplets into the plant can also be obtained.

Claims (19)

As a cultivation and cultivation environment device for plants that maintains a high humidity environment in the cultivation room for cultivating and cultivating plants An environmental device having an intake section for taking in outside air, and a high humidity air generating unit for humidifying together the outside air from the intake section and the air from the cultivation chamber. The environmental device according to claim 1, further comprising a heating and humidifying unit configured to heat and humidify the intake air. The environmental device according to claim 2, wherein the outside air in which the heating humidifying unit intakes is heated and humidified before being introduced into the high humidity air generating unit. The environmental apparatus according to claim 1, further comprising an intake air amount adjusting unit for adjusting the intake air amount from the intake port, an exhaust unit for discharging air in the cultivation chamber to the outside, and an exhaust amount adjusting unit for adjusting the amount of air discharged from the exhaust unit. . The air conditioner according to claim 1, further comprising: an indoor return duct provided with a suction port for sucking air in the cultivation chamber, and an indoor supply duct provided with a blowout port for blowing the humidified air into the cultivation chamber. , And an environment device for circulating air in the culture room by the indoor return duct and the indoor supply duct. The environment apparatus according to claim 1, wherein the high humidity air generating unit has a spraying unit for spraying water into droplets, and a separation unit for separating fine droplets from the droplets generated by the spraying unit. The environment apparatus according to claim 6, wherein the diameter of the fine water droplets separated by the separator is 1 µm or less. The environmental device according to claim 1, wherein the high humidity air generating unit has a spray unit for spraying water into water droplets, and a water temperature control unit for adjusting a water temperature of water sprayed by the spray unit. The environmental apparatus according to claim 1, further comprising an air conditioner for pre-treating at least humidity before introducing air from the cultivation chamber into the high humidity air generating unit. The environmental device according to claim 1, further comprising a suction unit for sucking air in the culture chamber downstream of the air flow in the culture chamber. The air blowing unit according to claim 1, wherein the blowout unit blows air humidified by the high-humidity air generating unit under the cultivation object in the cultivation chamber, and an intake unit for sucking air in the cultivation chamber above the cultivation object in the cultivation chamber. Further equipped environmental device. The water temperature of the water sprayed by the spraying unit according to claim 1, wherein the high-humidity air generating unit has a spraying unit spraying water into water droplets, the temperature sensor detecting the temperature in the cultivation chamber, and the water sprayed by the spraying unit than the temperature detected by the temperature sensor. Environmental device further comprising a water temperature setting unit for setting a high. According to claim 1, Humidity sensor for detecting the humidity in the cultivation chamber, and in conjunction with the humidity detected by the humidity sensor, further comprising a humidity control unit for adjusting the humidity of the air blown out from the high humidity air generating unit Environmental devices. The air blower according to claim 1, further comprising: a blower for introducing outside air from the intake port and air in the cultivation chamber to the high-humidity air generating unit, and a blowing amount change unit for varying the rotation speed of the blower to change the circulating wind speed. Environmental devices. The environmental apparatus according to claim 1, further comprising: a carbon dioxide concentration sensor for detecting carbon dioxide concentration in the cultivation chamber, and an intake air amount adjusting unit for controlling the intake amount of outside air in association with the carbon dioxide concentration in the cultivation chamber detected by the carbon dioxide concentration sensor. . The environmental device according to claim 1, wherein the high-humidity air generating unit has an air outlet for blowing out the humidified air, and is further inclined and provided with a duct having a drain at one end having a low inclination. As a method of cultivation and cultivation of a plant that maintains a high humidity environment in a cultivation room for cultivating and cultivating a plant, A) intake of outside air, B) inhaling air in the cultivation chamber, C) A cultivation and cultivation method comprising humidifying both the air from the intake port and the air from the cultivation chamber together. 18. The method of claim 17, wherein in step C, water is sprayed to generate fine water droplets, thereby adjusting the inside of the growing chamber to a predetermined humidity, and excluding the amount of water that the fine water droplets penetrate into the object to be grown. A cultivation and culture method further comprising the step of setting the humidity in the cultivation room. As a cultivation facility that grows and cultivates plants by keeping the inside in a high humidity environment, The cultivation room which puts a cultivation object, A cultivation and cultivation facility comprising an environmental device having an intake section for taking in outside air and a high humidity air generating section for humidifying together the outside air from the intake section and air from the cultivation chamber.