JP6007619B2 - Carbon dioxide supply method and carbon dioxide supply system to plant cultivation facility - Google Patents
Carbon dioxide supply method and carbon dioxide supply system to plant cultivation facility Download PDFInfo
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Description
本発明は、植物の光合成に必要な炭酸ガスを植物栽培施設に供給するための方法及びシステムに関するものである。 The present invention relates to a method and system for supplying carbon dioxide gas necessary for plant photosynthesis to a plant cultivation facility.
従来、植物の光合成に必要な炭酸ガスを植物工場やハウス栽培施設等の植物栽培施設に供給する際には、例えば特許文献１や特許文献２に例示されているように、炭酸ガス発生源から生じる排気ガスを処理して抽出したり、あるいは特許文献３に例示されているように、炭酸ガスボンベから供給したりしていた。 Conventionally, when supplying carbon dioxide necessary for photosynthesis of plants to plant cultivation facilities such as plant factories and house cultivation facilities, for example, as exemplified in Patent Document 1 and Patent Document 2, from a carbon dioxide gas generation source The exhaust gas produced is treated and extracted, or, as exemplified in Patent Document 3, is supplied from a carbon dioxide gas cylinder.
すなわち、特許文献１においては、燃料電池の改質器から生じる炭酸ガス含有排気ガスを植物ハウスに供給するようにしている。特許文献２においては、液化ガス基地で発生する液化ガスの冷熱と産業プラントで発生する炭酸ガスとを用いてドライアイスを製造し、このドライアイスを植物工場で利用するようにしている。特許文献３においては、ガスボンベ内の炭酸ガスを水や液肥に溶解させるようにしている。 That is, in Patent Document 1, exhaust gas containing carbon dioxide gas generated from a reformer of a fuel cell is supplied to a plant house. In Patent Document 2, dry ice is manufactured using cold heat of liquefied gas generated at a liquefied gas base and carbon dioxide gas generated at an industrial plant, and this dry ice is used in a plant factory. In Patent Document 3, carbon dioxide gas in a gas cylinder is dissolved in water or liquid fertilizer.
しかし、特許文献１においては、改質器が化石燃料を処理するものであるため、その改質器からの排気ガスには硫黄酸化物等の植物に有害な成分が含まれるおそれがあり、このような有害成分を除去するためには、複雑で高価な除去装置が必要になる。特許文献２においても、排出ガスから炭酸ガスのみを回収する設備が必要であるばかりでなく、ドライアイスを製造したり、そのドライアイスを植物工場に搬送したりする設備が必要になって、設備が大規模かつ複雑になることは避けられない。特許文献３においては、光合成用の炭酸ガスの消費量を節約するために、炭酸ガスを水等に溶解させるようになっているが、溶解のための設備が必要となるばかりでなく、炭酸ガスのボンベを用意する必要があった。従って、いずれの特許文献においても、設備費用及びランニングコストを抑制することができない。 However, in Patent Document 1, since the reformer processes the fossil fuel, the exhaust gas from the reformer may contain a component harmful to plants such as sulfur oxide. In order to remove such harmful components, a complicated and expensive removal device is required. In Patent Document 2, not only equipment for recovering only carbon dioxide from exhaust gas is required, but also equipment for producing dry ice and transporting the dry ice to a plant factory is required. Is inevitably large and complex. In Patent Document 3, in order to save the consumption of carbon dioxide gas for photosynthesis, carbon dioxide gas is dissolved in water or the like. It was necessary to prepare the cylinder. Therefore, in any of the patent documents, the equipment cost and the running cost cannot be suppressed.
本発明の目的は、植物工場やハウス栽培施設等の植物栽培施設における炭酸ガス利用において設備費用及びランニングコストを抑制することができる炭酸ガス供給方法及び炭酸ガス供給システムを提供することにある。 The objective of this invention is providing the carbon dioxide supply method and carbon dioxide supply system which can suppress an installation cost and a running cost in the carbon dioxide utilization in plant cultivation facilities, such as a plant factory and a house cultivation facility.
上記の目的を達成するために、本発明は、植物栽培施設内及びオフィス内の炭酸ガスの濃度を検出する濃度検出手段を備え、空調設備により温度及び湿度が管理されるオフィス内に収容された生体の呼吸によって生じる炭酸ガスを含む気体を、供給ポンプを有する供給管を介して、植物栽培施設へ供給する炭酸ガス供給システムを用いて、植物栽培施設への炭酸ガス供給方法であって、前記炭酸ガス供給システムが、前記植物栽培施設内の温度
が所定値を越えるとともに、前記植物栽培施設内の炭酸ガス濃度よりも前記オフィス内の炭酸ガス濃度が高いことを検出した場合には、前記供給ポンプを駆動し、前記オフィス内の空調空気を、前記供給管を介して、前記植物栽培施設内に供給することを特徴としている。
従って、炭酸ガス発生空間で生体の呼吸によって生じた炭酸ガスを植物栽培施設で植物の光合成に必要な炭酸ガスとして利用するので、排気ガスを処理して炭酸ガスを抽出する設備や、炭酸ガスボンベを必要とせず、植物工場やハウス栽培施設等の植物栽培施設における炭酸ガス利用において設備費用やランニングコストを抑制することができる。
In order to achieve the above object, the present invention is provided with a concentration detection means for detecting the concentration of carbon dioxide in plant cultivation facilities and in an office , and is housed in an office where the temperature and humidity are controlled by an air conditioning facility . A method for supplying carbon dioxide to a plant cultivation facility using a carbon dioxide supply system for supplying a gas containing carbon dioxide generated by respiration of a living body to a plant cultivation facility via a supply pipe having a supply pump , The carbon dioxide supply system is connected to the temperature in the plant cultivation facility.
Is over a predetermined value, and when detecting that the carbon dioxide concentration in the office is higher than the carbon dioxide concentration in the plant cultivation facility, the supply pump is driven, the conditioned air in the office, It supplies to the plant cultivation facility through the supply pipe .
Therefore, the carbon dioxide generated by the breathing of the living body in the carbon dioxide generation space is used as the carbon dioxide necessary for the photosynthesis of the plant in the plant cultivation facility. It is not necessary and equipment costs and running costs can be reduced in the use of carbon dioxide in plant cultivation facilities such as plant factories and house cultivation facilities.
また、上記の目的を達成するために、本発明は、植物栽培施設内及びオフィス内の炭酸ガスの濃度を検出する濃度検出手段を備え、空調設備により温度及び湿度が管理されるオフィス内に収容された生体の呼吸によって生じる炭酸ガスを含む気体を、供給ポンプを有する供給管を介して、植物栽培施設へ供給する炭酸ガス供給システムであって、前記供給ポンプは、前記植物栽培施設内の温度が所定値を越えるとともに、前記植物栽培施設内の炭酸ガス濃度よりも前記オフィス内の炭酸ガス濃度が高いことを検出した場合に駆動されて、前記オフィス内の空調空気を、前記供給管を介して、前記植物栽培施設内に供給することを特徴とする。 Also, in order to achieve the above object, the present invention is provided with a concentration detection means for detecting the concentration of carbon dioxide in the plant cultivation facility and offices, the office temperature and humidity are controlled by air conditioning equipment A carbon dioxide supply system for supplying a gas containing carbon dioxide generated by respiration of a contained living body to a plant cultivation facility through a supply pipe having a supply pump , wherein the supply pump is provided in the plant cultivation facility. Driven when detecting that the temperature exceeds a predetermined value and the carbon dioxide concentration in the office is higher than the carbon dioxide concentration in the plant cultivation facility, the conditioned air in the office is passed through the supply pipe. It supplies to the inside of the plant cultivation facility .
従って、炭酸ガス発生空間で生体の呼吸によって生じた炭酸ガスを空気供給路により植物栽培施設へ供給することができるので、排気ガスを処理して炭酸ガスを抽出する設備や、炭酸ガスボンベを必要としない。 Therefore, since carbon dioxide generated by respiration of the living body in the carbon dioxide generating space can be supplied to the plant cultivation facility through the air supply path, a facility for processing the exhaust gas to extract carbon dioxide and a carbon dioxide cylinder are required. do not do.
以上のように、本発明にかかる炭酸ガス供給方法及び炭酸ガス供給システムによれば、植物工場やハウス栽培施設等の植物栽培施設における炭酸ガス使用において設備費用やランニングコストを抑制することができるという効果を発揮する。 As described above, according to the carbon dioxide supply method and the carbon dioxide supply system according to the present invention, it is possible to suppress equipment costs and running costs in the use of carbon dioxide in plant cultivation facilities such as plant factories and house cultivation facilities. Demonstrate the effect.
以下、本発明を具体化した実施形態を図１及び図２に従って説明する。
炭酸ガス発生空間として、多くの人が働くオフィス１では、特に昼間において、主として内部の人員の呼吸により空気内の炭酸ガス濃度が高くなって１０００ｐｐｍ以上まで上昇することが認められている。一方、植物栽培施設２においては、例えば、太陽光型植物工場では植物の光合成が盛んになる昼間に１０００〜１５００ｐｐｍ程度の炭酸ガス濃度を維持し、照明器具を用いた人工型植物工場では照明中に１０００〜１５００ｐｐｍ程度の炭酸ガス濃度を維持することが好ましい。
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.
In the office 1 where many people work as a carbon dioxide generating space, it is recognized that the concentration of carbon dioxide in the air increases and rises to 1000 ppm or more mainly due to the breathing of internal personnel, especially in the daytime. On the other hand, in the plant cultivation facility 2, for example, a solar carbon plant factory maintains a carbon dioxide concentration of about 1000 to 1500 ppm in the daytime when plant photosynthesis is thriving, and an artificial plant factory using lighting equipment is under illumination. It is preferable to maintain a carbon dioxide concentration of about 1000 to 1500 ppm.
また、オフィス１では、空調設備３により温度や湿度の調節が行われ、例えば、温度が摂氏１８度〜２８度程度に保たれるとともに、湿度が３０〜７０％Ｒｈ程度に保たれる。一方、植物栽培施設２においては、夏季の昼間の高温時における対策として、例えば、天窓から空気を逃がしたりしている。 In the office 1, the temperature and humidity are adjusted by the air conditioning equipment 3. For example, the temperature is maintained at about 18 to 28 degrees Celsius and the humidity is maintained at about 30 to 70% Rh. On the other hand, in the plant cultivation facility 2, for example, air is escaped from a skylight as a countermeasure at high temperatures in the daytime in summer.
そこで、本実施形態においては、オフィス１内の空気中に含まれる炭酸ガスを植物栽培施設２に供給して有効に利用するとともに、オフィス１の空調設備３により温度調節された空気を有効に利用するために、下記のシステムを採用している。 Therefore, in the present embodiment, carbon dioxide contained in the air in the office 1 is supplied to the plant cultivation facility 2 for effective use, and the air whose temperature is adjusted by the air conditioning equipment 3 in the office 1 is used effectively. In order to do this, the following system is adopted.
オフィス１に対し植物栽培施設２が並設されている。オフィス１の内部と植物栽培施設２の内部とは供給ポンプ５を有する空気供給管４（空気供給路）により連通されている。オフィス１と植物栽培施設２とは、ごく近い隣接状態であっても、あるいは空気を送り得る程度に離れていてもよい。 A plant cultivation facility 2 is arranged in parallel with the office 1. The inside of the office 1 and the inside of the plant cultivation facility 2 are communicated by an air supply pipe 4 (air supply path) having a supply pump 5. The office 1 and the plant cultivation facility 2 may be in close proximity to each other or may be separated to such an extent that air can be sent.
オフィス１内にはその内部の空気に含まれる炭酸ガスの濃度を検出するために濃度センサ６（濃度検出手段）が設置されている。オフィス１には内部の空気を排出するための空気排出装置７（空気排出手段）が設けられている。 A concentration sensor 6 (concentration detection means) is installed in the office 1 in order to detect the concentration of carbon dioxide contained in the air inside. The office 1 is provided with an air discharge device 7 (air discharge means) for discharging internal air.
植物栽培施設２にはその内部の空気に含まれる炭酸ガスの濃度を検出するために濃度センサ８（濃度検出手段）と、内部温度を検出するための温度センサ１０とが設置されている。植物栽培施設２にはその内部に炭酸ガスを供給するための炭酸ガスボンベを含む炭酸ガス供給装置９（炭酸ガス供給手段）が設けられている。この炭酸ガス供給装置９は補助的に設けられたものであって、必ずしも必要ではない。 The plant cultivation facility 2 is provided with a concentration sensor 8 (concentration detection means) for detecting the concentration of carbon dioxide contained in the air inside and a temperature sensor 10 for detecting the internal temperature. The plant cultivation facility 2 is provided with a carbon dioxide supply device 9 (carbon dioxide supply means) including a carbon dioxide cylinder for supplying carbon dioxide therein. This carbon dioxide supply device 9 is provided as an auxiliary, and is not necessarily required.
次に、この炭酸ガス供給システムの作用について、図２の作動回路（作動手段）を参照して説明する。
オフィス１の使用時には、空調設備３が稼働して、オフィス１内の空気の温度と湿度とが管理されるとともに、図２に示すメインスイッチ１１が閉状態にある。このメインスイッチ１１は、前記空調設備３が非稼働状態のときには開状態にあって、図２の回路が停止モードに維持される。また、オフィス１の空調設備３の稼働時には濃度センサ６によりオフィス１内の炭酸ガス濃度が常時検出されるとともに、植物栽培施設２においては、濃度センサ８により炭酸ガス濃度が常時検出され、さらに、温度センサ１０により内部の温度が常時検出される。
Next, the operation of this carbon dioxide gas supply system will be described with reference to the operation circuit (operation means) in FIG.
When the office 1 is in use, the air conditioner 3 operates to manage the temperature and humidity of the air in the office 1, and the main switch 11 shown in FIG. 2 is in a closed state. The main switch 11 is in an open state when the air conditioner 3 is not in operation, and the circuit in FIG. 2 is maintained in the stop mode. Moreover, while the air conditioning equipment 3 in the office 1 is in operation, the concentration sensor 6 constantly detects the carbon dioxide gas concentration in the office 1, and in the plant cultivation facility 2, the carbon dioxide gas concentration is always detected by the concentration sensor 8, The internal temperature is constantly detected by the temperature sensor 10.
植物栽培施設２内の温度が所定値（例えば、摂氏３０度）を越えた場合は、図２に示す温度センサ１０の常開スイッチ１０１が単独で閉状態になって、供給ポンプ５のポンプモータが駆動され、オフィス１内の比較的低い温度（例えば、摂氏２５度）の空調空気が空気供給管４を介して植物栽培施設２内に供給され、同植物栽培施設２内の温度が下降される。なお、前記温度センサ１０の常開スイッチ１０１は、後述のように、濃度センサ６，８の同時作動と連動して開閉動作される。 When the temperature in the plant cultivation facility 2 exceeds a predetermined value (for example, 30 degrees Celsius), the normally open switch 101 of the temperature sensor 10 shown in FIG. Is driven, conditioned air in the office 1 having a relatively low temperature (for example, 25 degrees Celsius) is supplied into the plant cultivation facility 2 through the air supply pipe 4, and the temperature in the plant cultivation facility 2 is lowered. The Note that the normally open switch 101 of the temperature sensor 10 is opened and closed in conjunction with the simultaneous operation of the concentration sensors 6 and 8, as will be described later.
植物栽培施設２内の炭酸ガス濃度が低く、かつオフィス１内の炭酸ガス濃度が高い場合（例えば、１０００ｐｐｍ以上）は、濃度センサ６，８及び温度センサ１０の常開スイッチ６１，８１，１０１が閉状態になるとともに、常閉スイッチ６２，８２が開状態となる。このため、供給ポンプ５のポンプモータが駆動されて、オフィス１内の空気が植物栽培施設２内に供給され、同植物栽培施設２内の炭酸ガス濃度が上昇される。このため、植物は充分な炭酸ガスの供給を受けて有効な光合成作用を発現する。オフィス１内の炭酸ガス濃度が所定値（例えば、４００ｐｐｍ）を下回ったり、植物栽培施設２内の炭酸ガス濃度が所定値（例えば、１５００ｐｐｍ）を上回ったりした場合は、濃度センサ６，８及び温度センサ１０の常開スイッチ６１，８１，１０１が開状態に戻るとともに、常閉スイッチ６２，８２が閉状態に戻り、供給ポンプ５が停止される。 When the carbon dioxide gas concentration in the plant cultivation facility 2 is low and the carbon dioxide gas concentration in the office 1 is high (for example, 1000 ppm or more), the normally open switches 61, 81, 101 of the concentration sensors 6, 8 and the temperature sensor 10 are At the same time, the normally closed switches 62 and 82 are opened. For this reason, the pump motor of the supply pump 5 is driven, the air in the office 1 is supplied into the plant cultivation facility 2, and the carbon dioxide gas concentration in the plant cultivation facility 2 is increased. For this reason, the plant expresses an effective photosynthetic action when supplied with sufficient carbon dioxide. When the carbon dioxide concentration in the office 1 falls below a predetermined value (for example, 400 ppm) or the carbon dioxide concentration in the plant cultivation facility 2 exceeds a predetermined value (for example, 1500 ppm), the concentration sensors 6 and 8 and the temperature While the normally open switches 61, 81, 101 of the sensor 10 return to the open state, the normally closed switches 62, 82 return to the closed state, and the supply pump 5 is stopped.
植物栽培施設２内の炭酸ガス濃度が低く（例えば、５００ｐｐｍ以下）、かつオフィス１内の炭酸ガス濃度も低い場合（例えば、４００ｐｐｍ以下）は、濃度センサ６の常開スイッチ６１及び常閉スイッチ６２がそれぞれ常開，常閉状態を維持し、濃度センサ８の常開スイッチ８１が閉状態になるとともに、常閉スイッチ８２が開状態となる。このため、炭酸ガス供給装置９のバルブ９１が開放動作されて、同装置９内のガスボンベからの炭酸ガスが植物栽培施設２内に供給される。従って、この場合も、植物は充分な炭酸ガスの供給を受けて有効な光合成作用を発現する。植物栽培施設２内の炭酸ガス濃度が所定値（例えば、１５００ＰＰｍ）を上回った場合は、濃度センサ８の常開スイッチ８１が開状態に戻るとともに、常閉スイッチ８２が閉状態に戻る。 When the carbon dioxide concentration in the plant cultivation facility 2 is low (for example, 500 ppm or less) and the carbon dioxide concentration in the office 1 is also low (for example, 400 ppm or less), the normally open switch 61 and the normally closed switch 62 of the concentration sensor 6 are used. Respectively, the normally open switch 81 of the concentration sensor 8 is closed and the normally closed switch 82 is opened. For this reason, the valve 91 of the carbon dioxide supply device 9 is opened, and the carbon dioxide from the gas cylinder in the device 9 is supplied into the plant cultivation facility 2. Accordingly, in this case as well, the plant develops an effective photosynthetic action upon receiving sufficient carbon dioxide. When the carbon dioxide gas concentration in the plant cultivation facility 2 exceeds a predetermined value (for example, 1500 PPm), the normally open switch 81 of the concentration sensor 8 returns to the open state and the normally closed switch 82 returns to the closed state.
植物栽培施設２内の炭酸ガス濃度が高く（例えば、１０００ＰＰｍ以上）、かつオフィス１内の炭酸ガス濃度も高い場合（例えば、１０００ＰＰｍ以上）は、濃度センサ８の常開スイッチ８１及び常閉スイッチ８２がそれぞれ常開，常閉状態を維持し、濃度センサ６の常開スイッチ６１が閉状態になるとともに、常閉スイッチ６２が開状態になる。このため、空気排出装置７が稼働されて、オフィス１内の空気が排出される。 When the carbon dioxide gas concentration in the plant cultivation facility 2 is high (for example, 1000 PPm or more) and the carbon dioxide gas concentration in the office 1 is also high (for example, 1000 PPm or more), the normally open switch 81 and the normally closed switch 82 of the concentration sensor 8. Respectively, the normally open switch 61 of the concentration sensor 6 is closed, and the normally closed switch 62 is opened. For this reason, the air exhaust device 7 is operated and the air in the office 1 is exhausted.
以上のように、植物栽培施設２で炭酸ガスが不足する場合にはオフィス１から、あるいは炭酸ガス供給装置９から炭酸ガスが補充される。オフィス１で炭酸ガス濃度が上昇した場合には空気排出装置７により炭酸ガスを含む空気が排出される。 As described above, when the carbon dioxide is insufficient in the plant cultivation facility 2, the carbon dioxide is replenished from the office 1 or from the carbon dioxide supply device 9. When the carbon dioxide concentration increases in the office 1, the air exhaust device 7 discharges air containing carbon dioxide.
そして、この実施形態によれば、以下のような効果を得ることができる。
（１） オフィス１内の生命体である人の呼吸から発生する無害な炭酸ガスが植物栽培施設２へ供給されて、植物の光合成に利用されて、成長に供される。従って、排気ガスを処理して炭酸ガスを抽出する設備の費用や、炭酸ガスボンベの費用を必要とせず、植物工場やハウス栽培施設等の植物栽培施設２においてランニングコストを抑制することができる。
And according to this embodiment, the following effects can be acquired.
(1) Harmless carbon dioxide generated from the respiration of a person who is a living organism in the office 1 is supplied to the plant cultivation facility 2 and used for plant photosynthesis for growth. Therefore, the cost of the facility for extracting the carbon dioxide gas by treating the exhaust gas and the cost of the carbon dioxide cylinder are not required, and the running cost can be suppressed in the plant cultivation facility 2 such as a plant factory or a house cultivation facility.
（２） オフィス１で温度調節された空気を植物栽培施設２へ供給して、植物栽培施設２内の温度を改善するので、例えば太陽光型植物工場や人工型植物工場等の植物栽培施設２において、夏季の昼間の高温時における負担を軽減することができる。 (2) Since the temperature adjusted in the office 1 is supplied to the plant cultivation facility 2 to improve the temperature in the plant cultivation facility 2, the plant cultivation facility 2 such as a solar plant factory or an artificial plant factory is used. Therefore, it is possible to reduce the burden at high temperatures during the daytime in summer.
前記実施形態は次のように変更して具体化することも可能である。
・ 前記実施形態では、図２に示すハード的な回路構成（作動手段）によってシステムの動作が制御されるようにした。これに対し、図３に示す実施形態では、記憶部２２を有する制御装置２１（作動手段）を設け、その制御装置２１の制御のもとに、記憶部２２に記憶されたプログラムが動作されて、前述の各種の作用が実行される。
The embodiment described above can be modified and embodied as follows.
In the embodiment, the system operation is controlled by the hardware circuit configuration (actuating means) shown in FIG. In contrast, in the embodiment shown in FIG. 3, a control device 21 (actuating means) having a storage unit 22 is provided, and a program stored in the storage unit 22 is operated under the control of the control device 21. The various actions described above are executed.
・ 炭酸ガス発生空間として、オフィスに代えて、畜産施設、ペットハウス、光合成がほとんど生じていない光（太陽光及び人工光）遮断時の植物栽培施設等、人間，動物，植物等の生体が収容される施設を利用してもよい。そのほか、映画館やドーム等の娯楽設備や老人ホ−ム等の住居設備等であってもよい。また、オフィス１のようにある程度閉じられた空間以外に、スポーツスタジアムのように多数の人が集まって炭酸ガスが溜まり易い開放空間であってもよい。 ・ Living space such as human beings, animals, plants, etc. are housed as a carbon dioxide generation space in place of offices, such as livestock facilities, pet houses, plant cultivation facilities when light (sunlight and artificial light) is hardly generated. You may use the facility. In addition, it may be a recreational facility such as a movie theater or a dome, or a residential facility such as an elderly home. In addition to a space that is closed to some extent as in the office 1, it may be an open space in which a large number of people gather to accumulate carbon dioxide gas, such as a sports stadium.
１…オフィス、２…植物栽培施設、４…空気供給管（空気供給路）、５…供給ポンプ、６…オフィスの濃度センサ（濃度検出手段）、７…オフィスの空気排出装置（空気排出手段）、８…植物栽培施設の濃度センサ（濃度検出手段）、９…植物栽培施設の炭酸ガス供給装置（炭酸ガス供給手段）。 DESCRIPTION OF SYMBOLS 1 ... Office, 2 ... Plant cultivation facility, 4 ... Air supply pipe (air supply path), 5 ... Supply pump, 6 ... Office concentration sensor (concentration detection means), 7 ... Office air discharge device (air discharge means) 8, concentration sensor (concentration detection means) for plant cultivation facility, 9 ... carbon dioxide supply device (carbon dioxide supply means) for plant cultivation facility.
Claims (2)
前記炭酸ガス供給システムが、前記植物栽培施設内の温度が所定値を越えるとともに、前記植物栽培施設内の炭酸ガス濃度よりも前記オフィス内の炭酸ガス濃度が高いことを検出した場合には、前記供給ポンプを駆動し、前記オフィス内の空調空気を、前記供給管を介して、前記植物栽培施設内に供給することを特徴とする植物栽培施設への炭酸ガス供給方法。 Concentration detection means for detecting the concentration of carbon dioxide in plant cultivation facilities and offices is provided, and gas containing carbon dioxide generated by breathing of living bodies housed in offices where the temperature and humidity are controlled by air conditioning equipment is supplied. A carbon dioxide supply method to a plant cultivation facility using a carbon dioxide supply system that supplies the plant cultivation facility via a supply pipe having a pump ,
When the carbon dioxide supply system detects that the temperature in the plant cultivation facility exceeds a predetermined value and the carbon dioxide concentration in the office is higher than the carbon dioxide concentration in the plant cultivation facility, A carbon dioxide gas supply method to a plant cultivation facility , wherein a supply pump is driven and conditioned air in the office is supplied into the plant cultivation facility through the supply pipe .
前記供給ポンプは、前記植物栽培施設内の温度が所定値を越えるとともに、前記植物栽培施設内の炭酸ガス濃度よりも前記オフィス内の炭酸ガス濃度が高いことを検出した場合に駆動されて、前記オフィス内の空調空気を、前記供給管を介して、前記植物栽培施設内に供給することを特徴とする植物栽培施設への炭酸ガス供給システム。 Concentration detection means for detecting the concentration of carbon dioxide in plant cultivation facilities and offices is provided, and gas containing carbon dioxide generated by breathing of living bodies housed in offices where the temperature and humidity are controlled by air conditioning equipment is supplied. A carbon dioxide supply system that supplies a plant cultivation facility via a supply pipe having a pump ,
The supply pump is driven when detecting that the temperature in the plant cultivation facility exceeds a predetermined value and that the carbon dioxide concentration in the office is higher than the carbon dioxide concentration in the plant cultivation facility, A carbon dioxide gas supply system for a plant cultivation facility, characterized in that conditioned air in the office is supplied into the plant cultivation facility via the supply pipe .
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