JP2014018196A - Carbon dioxide gas application control device and carbon dioxide gas application control method of sunlight type greenhouse - Google Patents

Carbon dioxide gas application control device and carbon dioxide gas application control method of sunlight type greenhouse Download PDF

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JP2014018196A
JP2014018196A JP2012170423A JP2012170423A JP2014018196A JP 2014018196 A JP2014018196 A JP 2014018196A JP 2012170423 A JP2012170423 A JP 2012170423A JP 2012170423 A JP2012170423 A JP 2012170423A JP 2014018196 A JP2014018196 A JP 2014018196A
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carbon dioxide
dioxide gas
concentration
solenoid valve
application
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Nobuaki Tabei
伸昭 田部井
Rei Takekawa
令 武川
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Nippon Ekitan Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Abstract

PROBLEM TO BE SOLVED: To provide a carbon dioxide gas application device and a carbon dioxide gas application control method which appropriately apply carbon dioxide gas to a thickly grown part of cultivated crops by controlling application timing, an application position and an application amount of carbon dioxide gas in a sunlight type greenhouse which performs skylight window opening and wall surface ventilation fan operation based on a set air temperature.SOLUTION: In a carbon dioxide gas application control device and a carbon dioxide gas application control method, in a state where a time zone determined by a timer comes, and a skylight window is closed and wall surface ventilation fans do not operate, carbon dioxide gas is applied from under a thickly grown part of a rack of cultivated crops to maintain carbon dioxide gas concentration of the thickly grown part within a fixed concentration range by a carbon dioxide gas concentration meter and control of a sequencer or a relay. In a case where the skylight window is opened, application of the gas is stopped, and outflow of carbon dioxide gas caused by air replacement through the skylight window opening is suppressed. When air temperature rises even higher to cause a state where the wall surface ventilation fans start operating to vent out air in a greenhouse from the wall surface, application of the gas from under the thickly grown part is stopped, positions from which the gas is applied are appropriately installed on the windward side of the thickly grown part and carbon dioxide gas is applied to the thickly grown part, and carbon dioxide gas concentration of the thickly grown part can be maintained within a fixed concentration range by the carbon dioxide gas concentration meter and control of the sequencer or the relay.

Description

本発明は設定気温によって天窓開口や壁面換気扇稼動を行い、ハウス内の気温上昇抑制を行う太陽光型のハウスにあって炭酸ガスの施用タイミング、施用位置、施用量を制御することで栽培作物の繁茂部分に炭酸ガスを適正に施用する炭酸ガス施用制御装置と施用制御方法に関する。  The present invention is a solar type house that operates a skylight opening and wall ventilation fan according to the set temperature and suppresses temperature rise in the house, and controls the application timing, application position, and application rate of carbon dioxide gas to control the cultivation crops. The present invention relates to a carbon dioxide gas application control device and an application control method for properly applying carbon dioxide gas to an overgrown portion.

太陽光型のハウスにおいて、換気手段を調整してハウス内の気温を調整すると共にハウス内の炭酸ガス濃度の基準濃度を換気手段の調整により補正して炭酸ガス供給のムダを減少させる方法が提案されている（例えば、特許文献１参照）。  In a solar-type house, a method to reduce the waste of carbon dioxide supply by adjusting the ventilation means to adjust the air temperature in the house and correcting the standard concentration of carbon dioxide gas concentration in the house by adjusting the ventilation means is proposed. (For example, refer to Patent Document 1).

特開平８−６６１２６号公報JP-A-8-66126

しかしながら、特許文献１の方法はハウス全体に炭酸ガスを施用する方法であり、葉の無い部分への施用ロスがあり、炭酸ガスの効率的な施用方法ではなかった。  However, the method of Patent Document 1 is a method of applying carbon dioxide gas to the entire house, and there is an application loss to a portion having no leaves, which is not an efficient method of applying carbon dioxide gas.

本発明は上記の実情に鑑みてなされたものであり、その目的はハウス内の気温調整のために天窓を開口し上部から空気を入れ替えて気温を下げる方法と、壁面換気扇で側面より空気を排気することにより気温を下げる方法に合わせ、炭酸ガスの施用タイミングと施用位置と施用量を調整することで任意の時間帯に繁茂部分に適正量の炭酸ガスを施用し、空気入れ替え時の炭酸ガスの流出や葉の無い部位への流出をできるだけ抑制する炭酸ガス施用制御装置を提供することにある。  The present invention has been made in view of the above circumstances, and its purpose is to open a skylight to adjust the temperature in the house and replace the air from the top to lower the temperature, and exhaust air from the side with a wall ventilation fan. By adjusting the carbon dioxide application timing, application position and application amount according to the method of lowering the temperature, the appropriate amount of carbon dioxide gas can be applied to the overgrowth part at any time, and the carbon dioxide gas at the time of air replacement An object of the present invention is to provide a carbon dioxide gas application control device that suppresses as much as possible outflow and outflow to a site without leaves.

上記課題を解決するため本発明の炭酸ガス施用制御装置は、炭酸ガスボンベや炭酸ガス貯蔵タンクに接続された流量計付き圧力調整器の後の配管を２系列に分岐させ、それぞれに施用量を調整するための流量計付きニードルバルブＡと流量計付きニードルバルブＢを接続後、電磁弁Ｃ及び電磁弁Ｄを接続し、タイマーと炭酸ガス濃度計測定値による電磁弁の開閉制御をシーケンサーやリレーによって行い、タイマー設定した施用時間帯内でかつ炭酸ガス濃度が設定下限濃度以下の場合は電磁弁を開にし、タイマー設定した施用時間帯外または設定上限濃度以上となった場合は電磁弁を閉にすることにより炭酸ガスを施用し、電磁弁Ｃからの炭酸ガス施用部は棚ごとに栽培作物を定植した栽培ベッドの繁茂部分の下である根元部分全体から炭酸ガスを施用するように設置し、電磁弁Ｄからの炭酸ガス施用部は棚ごとに栽培作物の棚を挟んで壁面換気扇と逆となる棚の端部分の栽培ベッドの根元付近から繁茂部分である頂点部までとし、適宜間隔を置いて栽培ベッドの中間部の根元付近から繁茂部分である頂点部までにも設置し、壁面換気扇によりハウス内の空気が横に流れるときに繁茂部分全部に炭酸ガスが施用できるように設置する。電磁弁Ｃの制御はガス吸引口付きの炭酸ガス濃度計Ｅで実施し、ガス吸引口は設置された栽培植物の棚の列のほぼ真ん中となる列の栽培植物の棚の中央部付近の栽培作物の繁茂部分が途切れる頂点部分に設置する。電磁弁Ｄの制御は炭酸ガス濃度計Ｆで実施し壁面換気扇側で栽培植物の棚の列のほぼ中央部となる栽培作物の棚で棚の端部分で壁面換気扇の前となる場所に設置する。また天窓の開閉や壁面換気扇の稼働有無に合わせ、電磁弁Ｃおよび電磁弁Ｄの開閉の制御をシーケンサーやリレーにより行う。  In order to solve the above problems, the carbon dioxide application controller of the present invention branches the piping after the pressure regulator with a flow meter connected to a carbon dioxide cylinder or a carbon dioxide storage tank into two lines, and adjusts the application amount to each After connecting the needle valve A with a flow meter and the needle valve B with a flow meter, the solenoid valve C and the solenoid valve D are connected, and the open / close control of the solenoid valve by the timer and carbon dioxide concentration meter measurement value is performed by a sequencer or relay The solenoid valve is opened when the carbon dioxide gas concentration is below the set lower limit concentration within the application time zone set by the timer, and closed when outside the timer set application time range or above the set upper limit concentration. Carbon dioxide gas is applied, and the carbon dioxide gas application part from the solenoid valve C is carbonated from the whole root part under the growing part of the cultivation bed where the cultivated crops are planted every shelf. The carbon dioxide gas application part from the solenoid valve D is a prosperous part from the base of the cultivation bed at the end of the shelf that is opposite to the wall ventilation fan across the shelf of the cultivation crop for each shelf. Install up to the apex, and at appropriate intervals from the base of the middle part of the cultivation bed to the apex, which is the overgrowth part. When the air in the house flows sideways by the wall ventilator, carbon dioxide gas is added to the overgrowth part. Install so that can be applied. The solenoid valve C is controlled by a carbon dioxide concentration meter E with a gas suction port. The gas suction port is cultivated near the center of the cultivated plant shelf in the middle of the row of cultivated plant shelves installed. It is installed at the apex where the overgrown part of the crop is interrupted. The solenoid valve D is controlled by the carbon dioxide gas concentration meter F and installed on the wall ventilator side at the end of the shelf in front of the wall ventilator at the shelf of the cultivated crop that is almost the center of the row of cultivated plant shelves. . The sequencer and relay control the opening and closing of the solenoid valve C and the solenoid valve D in accordance with the opening and closing of the skylight and the operation of the wall ventilation fan.

タイマーで決定された時間帯となり壁面換気扇が稼働しない状態で天窓が閉じた状態で、炭酸ガス濃度計Ｅのガス吸引口部分の炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｃが開き炭酸ガスが施用され、天窓が開口した場合や炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｃを閉じる。この開閉を繰り返すことにより、所定時間帯では天窓が開口した場合の空気の入れ替えによる炭酸ガス流出を抑制し、栽培作物の繁茂部分の炭酸ガス濃度が一定濃度範囲となり葉の無い部分への炭酸ガスの流出を抑制することができる。ハウス内の気温がより上昇し壁面換気扇が稼働しハウス内の空気を壁面から排気する状態となるとシーケンサーやリレーの制御により電磁弁Ｃが閉じ、この状態で炭酸ガス濃度計Ｆの炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｄが開き炭酸ガスが施用され、炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｄを閉じる。この開閉を繰り返すことにより、壁面換気扇稼働時でも所定時間帯での栽培作物の繁茂部分の炭酸ガス濃度が一定濃度範囲となり、葉の無い部分への炭酸ガスの流出を抑制することができる。  When the time zone determined by the timer is reached and the wall ventilator is not in operation and the skylight is closed, the CO2 gas concentration at the gas suction port of the CO2 concentration meter E is detected to be below the set lower limit concentration. When the solenoid valve C is opened by the relay control and carbon dioxide gas is applied, the skylight is opened, or when carbon dioxide gas application continues and the concentration exceeds the set upper limit, or the cloudy and rainy weather causes the carbon dioxide gas supply to exceed the absorption by photosynthesis. When a case where the concentration exceeds the set upper limit concentration is detected, the solenoid valve C is closed by control of a sequencer or a relay. By repeating this opening and closing, carbon dioxide gas outflow due to air exchange when the skylight opens in a predetermined time zone is suppressed, and the carbon dioxide gas concentration in the overgrown part of the cultivated crop becomes a constant concentration range and carbon dioxide gas to the part without leaves Can be suppressed. When the temperature in the house rises and the wall ventilator is activated and the air in the house is exhausted from the wall, the solenoid valve C is closed by the control of the sequencer and relay, and in this state the carbon dioxide concentration of the carbon dioxide concentration meter F is When it is detected that the concentration is lower than the set lower limit concentration, the solenoid valve D is opened by the control of the sequencer or relay, and carbon dioxide gas is applied. If the carbon dioxide supply is excessive and the concentration exceeds the set upper limit concentration, the solenoid valve D is closed by control of the sequencer or relay. By repeating this opening and closing, the carbon dioxide concentration in the overgrown portion of the cultivated crop in the predetermined time zone becomes a certain concentration range even when the wall ventilation fan is operating, and the outflow of the carbon dioxide gas to the portion having no leaf can be suppressed.

また本施用装置に照度計を付けて設定した照度より低い場合に炭酸ガスを施用しないような制御を設けることにより曇天や雨天時に炭酸ガスを施用しないようにすることもできる。  In addition, it is possible to prevent carbon dioxide gas from being applied during cloudy or rainy weather by providing a control so that carbon dioxide gas is not applied when the illuminance meter is lower than the illuminance set by attaching an illuminometer to the application apparatus.

またシーケンサーの制御プログラムを変更して天窓の開閉による電磁弁Ｃの開閉制御を中止し、天窓開口時も電磁弁Ｃから炭酸ガスを施用できるようにすることもできる。  Further, the control program of the sequencer can be changed to stop the opening / closing control of the solenoid valve C by opening / closing the skylight so that carbon dioxide gas can be applied from the solenoid valve C even when the skylight is open.

本発明に係る炭酸ガスの施用制御装置によれば、設定気温によって天窓開口や壁面換気扇稼動を行い、ハウス内の気温上昇抑制を行う太陽光型のハウスでも、任意の時間帯に炭酸ガスの施用タイミング、施用位置、施用量を制御することで栽培作物の繁茂部分に炭酸ガスを適正量施用し、天窓開口による空気入れ替えの炭酸ガスの流出と葉の無い部位への炭酸ガス流出を抑制することができる。  According to the carbon dioxide gas application control device according to the present invention, the application of carbon dioxide gas at any time zone is possible even in a solar-type house that operates a skylight opening or wall ventilation fan according to the set temperature and suppresses temperature rise in the house. By controlling the timing, application position, and application rate, carbon dioxide gas is applied in an appropriate amount to the overgrown portion of the cultivated crop, and carbon dioxide outflow due to air exchange through the skylight opening and carbon dioxide outflow to areas without leaves are suppressed. Can do.

横から見たハウスと炭酸ガス施用制御装置House and carbon dioxide application controller viewed from the side 上から見たハウスと炭酸ガス施用制御装置House and carbon dioxide application controller seen from above

以下、本発明の形態を図１および図２に基づいて説明する。  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.

図１および図２は天窓と壁面換気扇を有するトマトの密植・養液栽培のハウスと炭酸ガス施用制御装置であり、栽培ベッド１上にトマト２が定植されている。炭酸ガスボンベ３に接続された流量計付き圧力調整器４の後の配管を２系列に分岐させ、それぞれの施用量を調整するための流量計付きニードルバルブＡ５と流量計付きニードルバルブＢ６に接続後、ガス吸引口７付きの炭酸ガス濃度計Ｅ８と炭酸ガス濃度計Ｆ９に接続したタイマー付きシーケンサー１０で制御される電磁弁Ｃ１１及び電磁弁Ｄ１２が接続され、電磁弁Ｃ１１からの炭酸ガス配管Ｇ１３を棚ごとの栽培ベッド１上のトマト２の根元に設置した炭酸ガス施用チューブＨ１４の両端に接続し、トマト２の棚の列のほぼ真ん中となる列のトマト２の棚の中央部付近の葉の頂点部分に炭酸ガス濃度計Ｅ８のガス吸引口７を設置する。また電磁弁Ｄ１２からの炭酸ガス配管Ｉ１５を棚ごとにトマト２の棚を挟んで壁面換気扇１６と逆となる棚の端部分の栽培ベッド１のトマト２の根元付近から頂点部まで設置した炭酸ガス施用チューブＪ１７の両端に接続し、適宜間隔を置いた栽培ベッドの中間部の根元付近から頂点部まで設置した炭酸ガス施用チューブＪ１７の両端にも接続し、炭酸ガス濃度計Ｆ９を壁面換気扇１６側でトマト２の棚の列のほぼ中央部となるトマト２の棚で棚の端部分で壁面換気扇１６の前となる場所に設置する。また天窓１８の開閉や壁面換気扇１６の稼働有無の信号をタイマー付きシーケンサー１０で検知できるようにする。  FIG. 1 and FIG. 2 show a tomato dense planting and hydroponics house and a carbon dioxide application control device having a skylight and a wall ventilation fan. A tomato 2 is planted on a cultivation bed 1. After the piping after the pressure regulator 4 with a flow meter connected to the carbon dioxide cylinder 3 is branched into two lines and connected to the needle valve A5 with a flow meter and the needle valve B6 with a flow meter for adjusting the respective application rates The solenoid valve C11 and the solenoid valve D12 controlled by the sequencer 10 with a timer connected to the carbon dioxide concentration meter E8 with the gas suction port 7 and the carbon dioxide concentration meter F9 are connected, and the carbon dioxide pipe G13 from the solenoid valve C11 is connected. Connected to both ends of the carbon dioxide gas application tube H14 installed at the base of the tomato 2 on the cultivation bed 1 for each shelf, the leaf of the central portion of the tomato 2 shelf in the middle of the tomato 2 shelf row The gas suction port 7 of the carbon dioxide concentration meter E8 is installed at the apex portion. Carbon dioxide gas I15 from the solenoid valve D12 is installed from the root to the top of the tomato 2 of the cultivation bed 1 at the end of the shelf opposite to the wall ventilation fan 16 with the shelf of the tomato 2 sandwiched between the shelves of the tomato 2 for each shelf. Connected to both ends of the application tube J17, also connected to both ends of the carbon dioxide application tube J17 installed from near the root to the apex of the middle part of the cultivation bed at an appropriate interval, and the carbon dioxide concentration meter F9 is connected to the wall ventilation fan 16 side Thus, the tomato 2 shelves at the center of the shelves of the tomatoes 2 are installed at the end of the shelves in front of the wall ventilation fan 16. In addition, a signal indicating whether the skylight 18 is opened or closed and whether the wall ventilation fan 16 is operating can be detected by the sequencer 10 with a timer.

タイマーで決定された時間帯となり壁面換気扇１６が稼働しない状態で天窓１８が閉じた状態で炭酸ガス濃度計Ｅ８のガス吸引口７部分の炭酸ガス濃度が設定下限濃度以下となったことを検知するとタイマー付きシーケンサー１０の制御により電磁弁Ｃ１１が開き炭酸ガスが施用され、天窓が開口した場合や炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとタイマー付きシーケンサー１０の制御により電磁弁Ｃ１１を閉じる。この開閉を繰り返すことにより、所定時間帯では天窓が開口した場合の空気の入れ替えによる炭酸ガス流出を抑制し、トマト２の繁茂部分の炭酸ガス濃度が一定濃度範囲となり葉の無い部分への炭酸ガスの流出を抑制することができる。ハウス内の気温がより上昇し壁面換気扇１６が稼働しハウス内の空気を壁面から排気する状態となるとタイマー付きシーケンサー１０の制御により電磁弁Ｃ１１が閉じ、この状態で炭酸ガス濃度計Ｆ９の炭酸ガス濃度が設定下限濃度以下となったことを検知するとタイマー付きシーケンサー１０の制御により電磁弁Ｄ１２が開き炭酸ガスが施用され、炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとタイマー付きシーケンサー１０の制御により電磁弁Ｄ１２を閉じる。この開閉を繰り返すことにより、所定時間帯では壁面換気扇１６稼働時でもトマト２の繁茂部分の炭酸ガス濃度が一定濃度範囲となり、葉の無い部分への炭酸ガスの流出を抑制することができる。  When it is detected that the carbon dioxide concentration in the gas suction port 7 portion of the carbon dioxide concentration meter E8 is below the set lower limit concentration with the skylight 18 closed while the wall ventilation fan 16 is not operating in the time zone determined by the timer. When the solenoid valve C11 is opened by the control of the sequencer 10 with a timer, carbon dioxide is applied, and when the skylight is opened, or when carbon dioxide is continuously applied and the concentration exceeds the set upper limit, or carbon dioxide is supplied rather than absorption by photosynthesis due to cloudy or rainy weather Is detected and the value exceeds the set upper limit concentration, the solenoid valve C11 is closed under the control of the sequencer 10 with a timer. By repeating this opening and closing, carbon dioxide outflow due to air exchange when the skylight opens during a predetermined time zone is suppressed, and the carbon dioxide concentration in the overgrown portion of tomato 2 becomes a certain concentration range, and carbon dioxide to the portion without leaves Can be suppressed. When the temperature in the house rises and the wall ventilation fan 16 operates to exhaust the air in the house from the wall surface, the solenoid valve C11 is closed under the control of the sequencer 10 with the timer, and in this state, the carbon dioxide gas of the carbon dioxide concentration meter F9 When it is detected that the concentration is below the set lower limit concentration, the solenoid valve D12 is opened under the control of the sequencer 10 with a timer, and carbon dioxide gas is applied. When it is detected that the supply of carbon dioxide gas exceeds the set upper limit concentration than the absorption due to the above, the solenoid valve D12 is closed under the control of the sequencer 10 with a timer. By repeating this opening and closing, the carbon dioxide concentration in the overgrown portion of the tomato 2 is in a certain concentration range even when the wall ventilation fan 16 is operating in a predetermined time zone, and the outflow of carbon dioxide to the portion without leaves can be suppressed.

本炭酸ガス施用制御装置では省略したが、シーケンサーにタイマーのほかに照度計を付けて設定した照度より低い場合に炭酸ガスを流れないようにすることにより、曇天や雨天時に炭酸ガスを施用しないようにすることもできる。  Although omitted in this CO2 application control device, CO2 is not applied when it is cloudy or rainy by preventing CO2 from flowing when the illuminance meter is set in addition to the timer and the illuminance is lower than the set illuminance. It can also be.

１ 栽培ベッド
２ トマト
３ 炭酸ガスボンベ
４ 流量計付き圧力調整器
５ 流量計付きニードルバルブＡ
６ 流量計付きニードルバルブＢ
７ ガス吸引口
８ 炭酸ガス濃度計Ｅ
９ 炭酸ガス濃度計Ｆ
１０ タイマー付きシーケンサー
１１ 電磁弁Ｃ
１２ 電磁弁Ｄ
１３ 炭酸ガス配管Ｇ
１４ 炭酸ガス施用チューブＨ
１５ 炭酸ガス配管Ｉ
１６ 壁面換気扇
１７ 炭酸ガス施用チューブＪ
１８ 天窓1 Cultivation bed 2 Tomato 3 Carbon dioxide cylinder 4 Pressure regulator with flow meter 5 Needle valve A with flow meter
6 Needle valve B with flow meter
7 Gas suction port 8 Carbon dioxide gas concentration meter E
9 Carbon dioxide concentration meter F
10 Sequencer with timer 11 Solenoid valve C
12 Solenoid valve D
13 Carbon dioxide pipe G
14 Carbon dioxide tube H
15 CO2 piping I
16 Wall ventilation fan 17 Carbon dioxide gas application tube J
18 Skylight

Claims (4)

設定気温によって天窓開口や壁面換気扇稼働を行う太陽光型ハウスにおいて、炭酸ガスボンベや炭酸ガス貯蔵タンクに接続された流量計付き圧力調整器の後の配管を２系列に分岐させ、それぞれに施用量を調整するための流量計付きニードルバルブＡと流量計付きニードルバルブＢを接続後、電磁弁Ｃ及び電磁弁Ｄを接続し、タイマーと炭酸ガス濃度計測定値による電磁弁の開閉制御をシーケンサーやリレーによって行い、タイマー設定した施用時間帯内でかつ炭酸ガス濃度が設定下限濃度以下の場合は電磁弁を開にし、タイマー設定した施用時間帯外または設定上限濃度以上となった場合は電磁弁を閉にすることにより炭酸ガスを施用制御し、電磁弁Ｃからの炭酸ガス施用部は棚ごとに栽培作物を定植した栽培ベッドの繁茂部分の下である根元部分全体から炭酸ガスを施用するように設置し、電磁弁Ｄからの炭酸ガス施用部は棚ごとに栽培作物の棚を挟んで壁面換気扇と逆となる棚の端部分の栽培ベッドの根元付近から繁茂部分である頂点部までとし、適宜間隔を置いて栽培ベッドの中間部の根元付近から繁茂部分である頂点部までにも設置し、壁面換気扇によりハウス内の空気が横に流れるときに繁茂部分全部に炭酸ガスが施用できるように設置し、電磁弁Ｃの制御はガス吸引口付きの炭酸ガス濃度計Ｅで実施し、ガス吸引口は栽培植物の棚の列のほぼ真ん中となる列の栽培植物の棚の中央部付近の栽培作物の繁茂部分が途切れる頂点部分に設置し、電磁弁Ｄの制御は炭酸ガス濃度計Ｆで実施し壁面換気扇側で栽培植物の棚のほぼ中央部となる栽培作物の棚で棚の端部分で壁面換気扇の前となる場所に設置し、天窓の開閉や壁面換気扇の稼働有無に合わせ、電磁弁Ｃおよび電磁弁Ｄの開閉の制御をシーケンサーやリレーにより行うことを特徴とする炭酸ガス施用制御装置。  In a solar house that operates a skylight opening or wall ventilation fan depending on the set temperature, the piping after the pressure regulator with a flow meter connected to a carbon dioxide cylinder or a carbon dioxide storage tank is branched into two lines, and the application amount for each is divided. After connecting needle valve A with flow meter and needle valve B with flow meter for adjustment, solenoid valve C and solenoid valve D are connected, and the opening and closing control of the solenoid valve by the timer and carbon dioxide concentration meter measurement value is done by sequencer or relay If the carbon dioxide gas concentration is less than or equal to the set lower limit concentration within the application time zone set by the timer, the solenoid valve is opened.If the carbon dioxide gas concentration is outside the timer set application time zone or exceeds the set upper limit concentration, the solenoid valve is closed. Carbon dioxide gas application control is performed by this, and the carbon dioxide gas application part from the solenoid valve C is under the prosperous part of the cultivation bed where the cultivated crops are planted for each shelf. Installed so that carbon dioxide gas is applied from the whole original part, and the carbon dioxide gas application part from the solenoid valve D is near the root of the cultivation bed at the end of the shelf opposite to the wall ventilation fan across the shelf of the cultivated crop for each shelf From the root of the middle part of the cultivation bed to the apex which is the prosperous part at appropriate intervals, and when the air in the house flows sideways by the wall ventilation fan It is installed so that carbon dioxide can be applied to all parts, and the solenoid valve C is controlled by a carbon dioxide gas concentration meter E with a gas suction port. The gas suction port is located in the middle of the row of cultivated plant shelves. Installed at the apex where the growing parts of the cultivated crops are interrupted near the center of the cultivated plant shelf, and the solenoid valve D is controlled by the carbon dioxide gas concentration meter F and becomes the central part of the cultivated plant shelf on the wall ventilation fan side. Wall at the end of the shelf with cultivated crop shelves A carbon dioxide gas application control device, which is installed in a place in front of an air fan and controls opening and closing of the solenoid valve C and the solenoid valve D by a sequencer or a relay in accordance with the opening / closing of the skylight or the operation of the wall ventilation fan . 請求項１の炭酸ガス施用制御装置に照度計を付け、一定の照度以上で炭酸ガスの電磁弁を開にし、一定の照度未満で電磁弁を閉にする機能を追加したことを特徴とする炭酸ガス施用制御装置。  An illuminometer is attached to the carbon dioxide application controller according to claim 1, and a function of opening the electromagnetic valve of carbon dioxide gas above a certain illuminance and closing the solenoid valve below a certain illuminance is added. Gas application control device. タイマーで決定された時間帯となり壁面換気扇が稼働しない状態で天窓が閉じた状態で炭酸ガス濃度計Ｅのガス吸引口部分の炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｃが開き炭酸ガスが施用され、天窓が開口した場合や炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｃを閉じ炭酸ガスの施用を中止することと、ハウス内の気温がより上昇し壁面換気扇が稼働しハウス内の空気を壁面から排気する状態となるとシーケンサーやリレーの制御により電磁弁Ｃが閉じ、この状態で炭酸ガス濃度計Ｆの炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｄが開き炭酸ガスが施用され、炭酸ガス施用が続き設定上限濃度以上となった場合や曇天や雨天により光合成による吸収よりも炭酸ガス供給が過剰となり設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｄを閉じ炭酸ガスの施用を中止することにより、所定時間帯では天窓開口時の空気の入れ替えによる炭酸ガスの流出を抑制し、天窓が閉じた状態や壁面換気扇稼働時でも栽培作物の繁茂部分の炭酸ガス濃度が一定濃度範囲となり、葉の無い部分への炭酸ガスの流出を抑制することができることを特徴とする請求項１記載の栽培作物への炭酸ガス施用制御方法。  Sequencer or relay when it is detected that the carbon dioxide concentration in the gas suction port of the carbon dioxide concentration meter E is below the set lower limit concentration with the skylight closed when the wall ventilation fan is not operating in the time zone determined by the timer Control opens the solenoid valve C, carbon dioxide is applied, and when the skylight opens, or when carbon dioxide is continuously applied and the concentration exceeds the set upper limit, or when the carbon dioxide supply exceeds the absorption by photosynthesis due to cloudy or rainy weather When it is detected that the concentration exceeds the upper limit, the solenoid valve C is closed by control of the sequencer or relay, and the application of carbon dioxide gas is stopped. When the exhaust state is reached, the solenoid valve C is closed under the control of the sequencer or relay, and in this state the carbon dioxide concentration of the carbon dioxide concentration meter F is lower than the set lower limit. When it is detected that the temperature is below the limit, the solenoid valve D is opened by the control of the sequencer or relay, and carbon dioxide gas is applied. When it is detected that the gas supply is excessive and exceeds the set upper limit concentration, the solenoid valve D is closed by control of the sequencer or relay and the application of carbon dioxide gas is stopped. Suppress the outflow of gas, and even when the skylight is closed or the wall ventilator is in operation, the carbon dioxide concentration in the overgrown part of the cultivated crop is in a certain concentration range, and it is possible to suppress the outflow of carbon dioxide to the part without leaves The method for controlling application of carbon dioxide to a cultivated crop according to claim 1, タイマーで決定された時間帯となりかつ照度計で設定した一定の照度以上となり壁面換気扇が稼働しない状態で天窓が閉じた状態で炭酸ガス濃度計Ｅのガス吸引口部分の炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｃが開き炭酸ガスが施用され、一定の照度未満となった場合や天窓が開口した場合や炭酸ガス施用が続き設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｃを閉じ炭酸ガスの施用を中止することと、ハウス内の気温がより上昇し壁面換気扇が稼働しハウス内の空気を壁面から排気する状態となるとシーケンサーやリレーの制御により電磁弁Ｃが閉じ、この状態で一定の照度以上となり炭酸ガス濃度計Ｆの炭酸ガス濃度が設定下限濃度以下となったことを検知するとシーケンサーやリレーの制御により電磁弁Ｄが開き炭酸ガスが施用され、一定の照度未満となった場合や炭酸ガス施用が続き設定上限濃度以上となった場合を検知するとシーケンサーやリレーの制御により電磁弁Ｄを閉じ炭酸ガスの施用を中止することにより、所定時間帯では天窓開口時の空気の入れ替えによる炭酸ガスの流出を抑制し、天窓が閉じた状態や壁面換気扇稼働時でも栽培作物の繁茂部分の炭酸ガス濃度が一定濃度範囲となり、葉の無い部分への炭酸ガスの流出を抑制することができることを特徴とする請求項２記載の栽培作物への炭酸ガス施用制御方法。  The carbon dioxide concentration at the gas suction port of the carbon dioxide concentration meter E is set to the lower limit concentration when the time determined by the timer is exceeded and the illuminance exceeds a certain level set by the illuminometer and the skylight is closed with the wall ventilation fan not operating. When it is detected that the following conditions have been reached, the solenoid valve C is opened by the control of the sequencer or relay, and carbon dioxide is applied. When the illuminance falls below a certain level, the skylight opens, or carbon dioxide is continuously applied and the concentration exceeds the set upper limit concentration. When it is detected, the solenoid valve C is closed by the control of the sequencer or relay, and the application of carbon dioxide gas is stopped, and the temperature in the house rises further and the wall ventilation fan operates and the air in the house is exhausted from the wall Then, the solenoid valve C is closed by the control of the sequencer or relay, and in this state, the illuminance exceeds a certain level, and the carbon dioxide concentration in the carbon dioxide concentration meter F is the lower limit concentration. When it is detected that the pressure has fallen, the solenoid valve D is opened by control of the sequencer or relay, and carbon dioxide gas is applied. When the illuminance falls below a certain level or when the carbon dioxide gas application continues and exceeds the set upper limit concentration, By controlling the sequencer and relay to close the solenoid valve D and discontinue the application of carbon dioxide gas, the flow of carbon dioxide gas is prevented from changing due to air exchange when the skylight is open, and the skylight is closed and the wall ventilation fan is activated. The carbon dioxide gas application control to the cultivated crop according to claim 2, wherein the carbon dioxide concentration in the overgrown portion of the cultivated crop is within a certain concentration range, and the outflow of the carbon dioxide gas to the portion having no leaf can be suppressed. Method.
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