JP2001045878A - Apparatus for moisturizing glasshouse crop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive apparatus for moisturizing glasshouse crops. SOLUTION: Pots 11 for cultivating crops are put on an elevated bed 9 for cultivating crops laid on a support stand 8 in a green house 1 and a sprinkling hose 13 is supported to be hanging below the cultivating pots 11 on the support stand 8. During cultivation, when the temperature detected by a thermometer 15 in the greenhouse reachs a temperature equal to or less than the predetermined temperature, water is fed to the sprinkle hose 13 by driving a pressure pump 14 and sprinkled to the cultivated crops without splashing and the greenhouse is humidified. When in a super dried state, water is sprinkled from the sprinkling hose 13 and the humidity in the greenhouse is maintained in a predetermined range, thus, disease injuries are prevented from occurring. As the sprinkling hose 13 is hanged below the position for cultivating the crops and positioned on the upper part of the support stand 8, a specific support material for the sprinkling hose 13 is omitted and the installation cost is reduced and, in addition, as strawberries, etc., are not directly sprinkled, the inside of the greenhouse can be humidified by suppressing bad influences to the crops.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier for a cultivation facility such as a strawberry having an elevated bed for hydroponics.

[0002]

2. Description of the Related Art Humidification of strawberries and the like in a greenhouse has been performed by a humidifier.

[0003]

The conventional humidifier humidifies air by including water vapor in conjunction with a fan, but has the disadvantage of increasing the cost. Therefore,
The present invention seeks to humidify a greenhouse without adversely affecting crops by arranging a watering hose at a special position, sending water by a pump, and watering without reducing costs, without using an expensive humidifier. Is what you do.

[0004]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, according to the invention of claim 1, the crop cultivation pots 11, 11,... Are placed on the crop cultivation elevated bed 9 placed on the support 8 in the greenhouse 1, and Water supply means for suspending the watering hose 13 below the crop cultivation pots 11, 11,... And supplying water to the watering hose 13 when the humidity in the greenhouse 1 becomes lower than a predetermined humidity. This is a humidifier for greenhouse crops provided with.

[0005]

During the cultivation of strawberries and the like in the greenhouse 1, the humidity in the greenhouse 1 is detected by the hygrometer 15, and when the detected humidity becomes lower than the predetermined humidity, the pressure is controlled by a drive command from the control unit 17. The pump 14 is driven. Then, water is sent from the pressure pump 14 to the watering hose 13, and the water is sprinkled and humidified without scattering from the watering hose 13 to the cultivated crop. Further, when the detected humidity is equal to or higher than the predetermined humidity, the driving of the pressure pump 14 is stopped, the watering from the watering hose 13 is stopped, and the inside of the greenhouse 1 is maintained at the predetermined humidity.

[0006] In strawberry cultivation, trees are small relative to the volume of the greenhouse, and depending on weather conditions, the amount of transpiration of the trees alone is insufficient to cause moisture, resulting in overdryness, and the occurrence of diseases such as powdery mildew. However, as described above, in connection with the hygrometer 15, when overdrying is detected, water is sprinkled from the watering hose 13 to keep the humidity in the greenhouse 1 within a predetermined range, thereby preventing the occurrence of disease.

Further, since the watering hose 13 is suspended from the crop cultivation position on the support base 8, a special supporting member for the watering hose 13 can be omitted, and the installation cost can be reduced. Since water is not directly sprayed on crops such as strawberries, it is possible to humidify the greenhouse while reducing the adverse effects on the crops, and to improve the growth of the crops.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. This example is
In a cultivation facility such as a strawberry having an elevated bed for hydroponic cultivation or the like, humidification is satisfactorily performed so as not to adversely affect crops in the greenhouse 1.

Conventionally, humidification of strawberries and the like in a greenhouse has been performed by a humidifier. The humidifier humidifies the air by including water vapor in conjunction with the fan, but has the disadvantage of increasing the price. Therefore, in this embodiment, a specially arranged watering hose and pump are used to satisfactorily humidify the crop without adversely affecting the crop without using an expensive humidifier.

The ceiling of the greenhouse 1 has a lamp 2 for extending sunshine.
, And a summer light-shielding curtain 3 is provided so as to be freely deployed and stored, and a dark curtain 4 is provided around the greenhouse 1 and on the ceiling so as to be freely developed and stored. A permeable mat 5 is laid on the ground, and a pair of left and right vertical pipes 6, 6 and a horizontal pipe 7 erected at the upper end of the pair of vertical pipes 6, 6 constitute a support unit. The support stand 8 of an elevated type is arranged in a line.

[0011] On the support rods 8a, 8a of the support table 8,
For example, an elevated bed 9 for strawberry cultivation is placed, and rock wool or the like is packed at the bottom of the elevated bed 9 to form a floor soil base 10, and a cold and hot water supply pipe 10 a is provided at the bottom of the floor soil base 10. 10a is placed, and for example, rock wool pots 11, 11,... For strawberry cultivation are placed on the floor soil base 10, and water supply tubes 11a, 11a are placed on the rock wool pots 11, 11. It is. In addition,
A warm air duct 12 is arranged inside lower portions of the vertical pipes 6 and 6.

A sprinkling hose 13 is supported in a suspended manner below the left and right central portions of the horizontal pipe 7 of the support base 8.
When raw water is supplied to the watering hose 13 by the pressure pump 14, the water sprinkled from the watering hose 13 passes through the inside of the left and right vertical pipes 6, falls downward, and does not splash on the cultivated crop. . The hygrometer 15 is connected to a control unit 17 built in the operation panel 16, and a driving unit of the pressure pump 14 is connected to the control unit 17 of the operation panel 16.

With the above-described configuration, while cultivating strawberries or the like, the humidity in the greenhouse 1 is detected by the hygrometer 15 and input to the control unit 17. When the detected humidity becomes equal to or lower than the reference humidity, a pump drive command is output from the control unit 17, the pressure pump 14 is driven, raw water is sent from the pressure pump 14, and water is sprinkled from the watering hose 13. Further, when the detected humidity becomes equal to or higher than the reference humidity, the driving of the pressure pump 14 is stopped by the stop command of the control unit 17, the watering is stopped, and the inside of the greenhouse 1 is maintained at a predetermined humidity.

The above-described embodiment can be applied to crops of flowers, pots, and the like, which do not have large trees. As shown in FIG. 3, a pair of left and right vertical pipes 6, 6 and two upper and lower horizontal pipes 7, 7 are erected at the upper end portions of the pair of vertical pipes 6, 6 to support two upper and lower stages. The table 8 may be configured, and the rock wool pots 11, 11,... For strawberry cultivation may be placed on the support table 8 in two vertical stages. In this case, a sprinkling hose 13 is attached to the lower side of the lower horizontal pipe 7 below the left and right intermediate portion in a suspended manner so that water is not sprinkled directly on strawberries.

In the cultivation of strawberries, the trees are small relative to the greenhouse volume, and depending on the weather conditions, the amount of transpiration of the trees alone may result in insufficient water and overdrying, resulting in the occurrence of diseases such as powdery mildew. Easier to do. However, as mentioned above,
In conjunction with the hygrometer, when overdryness is detected, water is sprayed from the watering hose 13 to keep the humidity in the greenhouse 1 within a predetermined range, thereby preventing the occurrence of disease.

A sprinkling hose 1 is provided below the elevated bed 9.
3 is arranged in a suspended manner, so that a special support member for the watering hose 13 can be omitted, and installation costs can be reduced, and watering is not performed directly on crops such as strawberries. can do. Next, an elevated mobile cultivation bed of strawberries will be described with reference to FIGS.

This embodiment relates to an elevated cultivation apparatus for strawberries, and an elevated mobile cultivation bench is provided on the entire upper part of the greenhouse 1 including a passage for an operator. And a work trolley and a heating pipe rail are arranged in the lower part. A conventional strawberry cultivation bench is generally installed on the ground, and as shown in FIG. 7, a cultivation stand 19 is installed on a moving rail 18 via a rolling wheel and moved. The cost is high, and the harvesting work has a drawback that the moving rail is in the way.

Therefore, in this embodiment, by mounting the elevated mobile cultivation bench in a suspended manner, the cost can be reduced and the traveling of the work cart at the time of harvesting can be facilitated. It is something to try to eliminate.
As shown in FIG. 4 and FIG.
Are assembled at appropriate intervals on the upper part of... To increase the strength of the greenhouse 1. Are provided on the support frames 21, 21,...
, And a drive motor 24 is suspended in a middle portion between the movable support rods 22, 22,. The mechanism is decelerated by a mechanism and transmitted to the gear portion of the movable support bar 22, whereby the movable support bar 22 is rotated on its own, and is rotated on the support frames 21, 21, ... in the longitudinal direction.

Wires 25, 25,... Are suspended from the movable support rods 22, 22 through idler connecting portions 25a, and the lower ends of the wires 25, 25,. ing. As described above, since the cultivation elevated bed 9 is movably suspended in the support frame 21 for increasing the strength of the greenhouse 1, the cost can be reduced, and the cultivation is also provided in the passage portion. By moving the elevated bed 9 for cultivation, the number of cultivated plants can be increased,
Also, by moving the cultivation elevated bed 9 during the harvesting work, the passage can be formed relatively freely, and since there is no cultivation stand or moving rail on the ground, the work efficiency is also improved. be able to.

Also, as shown in FIG.
a, 23a and the upper and lower horizontal bars 23b, 23b constitute elevated supports 23c, 23c.
The elevated bed 9 is supported by the lower horizontal bar 23b of 3c. A pair of movable support bars 22, 22 are rotatably mounted around the axis on the lower surface of the upper horizontal bar 23b of the elevated supports 23c, 23c, and the pair of movable support bars 22, 22 are supported by the support frame members 21, 22.
1, and one of the movable support rods 22 may be rotated by the drive motor 24 in the same manner as in the above embodiment to move the elevated support 23c.

As shown in FIG. 8, the height of the cultivation elevated bed 9 may be adjusted up and down. That is, greenhouse 1
The elevating motors 26, 26 are attached to the supporting frame 21. Left and right wires 25 are attached to both ends of the elevated bed 9 for cultivation.
25,... Are connected and suspended, and the left and right wires 2
The lifting rods 27 are attached to the upper ends of the lifting wires 27, 27, and the hoisting wires 25a, 25 are attached to the lifting rods 27, 27.
a, the hoisting wires 25a, 25a are hoisted or unwound by the elevating motors 26, 26 so as to expand and contract, and the elevating bed 9 for cultivation is adjusted up and down.

With this structure, the height of the cultivation elevated bed 9 can be adjusted up and down, so that the crops can be uniformly illuminated and the quality can be made uniform. By setting the elevated bed 9 to a height suitable for work, fatigue of the worker can be reduced. Next, a method of controlling sterilization and regeneration of the hydroponic nutrient solution will be described with reference to FIGS.

This embodiment is used in a greenhouse 1 for a facility for cultivating, for example, hydroponic tomatoes. In a cultivation facility for reusing and recycling a nutrient solution, the discharged nutrient solution collected in the hydroponic cultivation is sterilized with ozone. The present invention relates to a method for controlling an ozone sterilizing apparatus including a sterilizing tank, an aeration tank, an ozone generator, a pump, and the like. As a conventional device, there is, for example, Japanese Patent Application Laid-Open No. 5-336856. In this prior art, a sterilization tank is provided which is partitioned into a first tank and a second tank, and ozone gas is blown into a nutrient solution in the first tank introduced from a nutrient solution tank to sterilize the nutrient solution. Air is blown into the nutrient solution flowing from the first tank to the second tank to accelerate the decomposition of ozone gas dissolved in the sterilized nutrient solution. Further, an exhaust gas processing section including a catalyst and a heating device is provided in an upper space in the sterilizing tank to process undissolved ozone gas in the nutrient solution.

However, in the prior art, untreated ozone gas may be released, causing a problem that the root of the crop is damaged. This embodiment is intended to solve such a problem. As shown in the drawing,
The drainage tank 28 is for collecting the drained nutrient solution circulated through the hydroponic bed, and the drainage tank 28 is provided with a submersible pump 29 with a float switch. When the discharged nutrient solution accumulates in a predetermined amount or more, the submersible pump 29 is driven, and the discharged nutrient solution is supplied to the sterilizing tank 31 via the pipe 30a.
It is a configuration sent to. Ozone gas is supplied to the sterilization tank 31 from an ozonizer 32 via an ozone hose 33, and the water level is detected by a sterilization tank water level gauge 34.

A transfer pump 35 is provided at the bottom of the sterilization tank 31.
The drainage discharged from the transfer pump 35 is sent to the aeration tank 36 via the pipe 30b, and the bottom of the aeration tank 36 is supplied with air from the roots blower 37, and the aeration tank water level gauge 38 In this configuration, the water level is detected. A tap water pipe 30c is connected to the mixing tank 39, and tap water is supplied to the mixing tank 39 via a tap water integrating flow meter 40, a tap water check valve 41, and a tap water lease valve 42.

The bottom of the aeration tank 36 is connected to the mixing tank 39 via a pipe 30d, and a second flow integrator 43,
Solenoid valve 44, second check valve 45, second three-way valve 46
Is provided. 47 is a ball tap.
Tap water and regenerated nutrient solution from the aeration tank 36 are supplied to the mixing tank 39 to adjust and mix fertilizers and chemicals to adjust the nutrient solution, and the water is supplied via a supply pump (not shown). It is supplied to a cultivation bed (not shown) and circulates.

Although the drawing is omitted, the sterilization tank water level meter 3
4, Aeration tank water level gauge 38, Ball tap 4
7, the ozone generation timer (not shown),
Timing information of an ozone stop timer (not shown) is input to a control unit built in the CPU, and the submersible pump 29, the ozonizer 32, the transfer pump 3
5, driving means for the roots blower 37 and the electromagnetic valve 44 are connected.

Next, the contents of the control will be described. The control of the submersible pump 29 of the drainage tank 28 is controlled by the detection information of the sterilization tank water level gauge 34. In other words, the submersible pump 2 is driven during the detection of the water level below the reference low water level and during the detection of the water level from the reference low water level to the reference high water level.
9 is stopped.

The control of the ozonizer 32 is controlled by detection information of the sterilization tank water level gauge 34 and a timer. That is, the ozonizer 32 stops the generation and supply of ozone while the sterilization tank water level meter 34 detects a water level lower than the reference low water level, and an ozone generation timer (during the detection of the water level from the reference low water level to the reference high water level). During a predetermined time (for example, it can be adjusted in 30 minutes) during which the ozonizer 3 is not operated,
2 is driven to generate and supply ozone, and then is operated for a predetermined time (for example, 1) for operating an ozone stop timer (not shown).
During 5 minutes, the supply of ozone is stopped. During the detection of the water level from the reference low water level to the reference high water level by the sterilization tank water level gauge 34, these timers operate as described above, and repeatedly drive and stop.

The transfer pump 35 is controlled by the detection information of the aeration tank water level gauge 34 and the detection information of the aeration tank water level gauge 38. That is, the transfer pump 35 operates only when the sterilization tank water level gauge 34 is detecting a water level higher than the reference high water level and the aeration tank water level gauge 38 is detecting a water level from the reference low water level to the reference high water level. I do. When the sterilization tank water level gauge 34 detects a water level lower than the reference low water level, the transfer pump 35 stops, and when the aeration tank water level gauge 38 detects a water level higher than the reference high water level, the transfer pump 35
Stops.

The roots blower 37 is controlled by detection information of the aeration tank water level gauge 38. That is, when the aeration tank water level gauge 38 detects a water level lower than the reference low water level, the roots blower 37 operates to blow air into the aeration tank 36 to promote the decomposition of ozone gas. When a water level higher than the reference high water level is detected, the driving of the roots blower 37 is stopped.

The solenoid valve 44 is controlled by information detected by the aeration tank water level gauge 38. That is, when the aeration tank water level gauge 38 detects a water level lower than the reference low water level, the solenoid valve 44 of the mixing tank 39 stops, and when a water level higher than the reference high water level is detected, the solenoid valve 44 operates to supply the regenerated nutrient solution. It is supplied from the aeration tank 36 to the mixing tank 39.

As described above, by adjusting and controlling the supply time of ozone gas, an appropriate amount of ozone gas is supplied and sterilized for an appropriate time, so that root pain due to residual ozone gas is prevented, and excessive supply of ozone gas is performed. To prevent
It is possible to prevent growth failure of the crop and precipitation caused by chemical change of the nutrient solution.

[Brief description of the drawings]

FIG. 1 is a cut-away side view.

FIG. 2 is a side view of a main part.

FIG. 3 is a side view of a main part.

FIG. 4 is an overall side sectional view.

FIG. 5 is a perspective view of a main part.

FIG. 6 is an overall side view.

FIG. 7 is a side view of a main part of a conventional device.

FIG. 8 is a front view and a side view of a main part.

FIG. 9 is a plan view.

FIG. 10 is a developed side view.

FIG. 11 is a side view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Greenhouse 2 Electric light 3 Shading curtain 4 Dark curtain 5 Permeable mat 6 Vertical pipe 7 Horizontal pipe 8 Support stand 9 Elevated bed 10 Floor soil base 11 Rock wool pot 12 Hot air duct 13 Watering hose 14 Pressure pump 15 Hygrometer 16 Operation panel 17 Control part

Claims (1)

[Claims] 1. A crop cultivation pot 1 on a crop cultivation elevated bed 9 placed on a support 8 in a greenhouse 1.
Are mounted, and a watering hose 13 is suspended in a position below the crop cultivation pots 11, 11,... On the support base 8 so that the humidity in the greenhouse 1 becomes lower than a predetermined humidity. Then, a humidifier for greenhouse crops, comprising a water supply means for supplying water to the watering hose 13.