JP6753830B2 - Carbon dioxide application device - Google Patents

Carbon dioxide application device Download PDF

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JP6753830B2
JP6753830B2 JP2017167002A JP2017167002A JP6753830B2 JP 6753830 B2 JP6753830 B2 JP 6753830B2 JP 2017167002 A JP2017167002 A JP 2017167002A JP 2017167002 A JP2017167002 A JP 2017167002A JP 6753830 B2 JP6753830 B2 JP 6753830B2
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carbon dioxide
exhaust gas
liquid storage
application device
storage tank
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JP2019041649A (en
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斉藤　隆
隆 斉藤
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Futaba Industrial Co Ltd
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Futaba Industrial Co Ltd
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Priority to NL2021510A priority patent/NL2021510B1/en
Priority to KR1020180102254A priority patent/KR20190024812A/en
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Priority to KR1020200071619A priority patent/KR102192432B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Description

本開示は、燃焼排ガスに含まれる二酸化炭素を回収し、農業用ハウス内に供給する技術に関する。 The present disclosure relates to a technique for recovering carbon dioxide contained in combustion exhaust gas and supplying it into an agricultural house.

下記の特許文献１には、二酸化炭素を吸着する吸着材を有する吸着タンクよりも燃焼排ガスの流れの上流で燃焼排ガスの除湿を行う技術が提案されている。この技術では、燃焼排ガスの除湿を行うことによって吸着材が水分を吸着することを抑制し、吸着タンクで二酸化炭素を効率的に貯留できるようにしている。 Patent Document 1 below proposes a technique for dehumidifying combustion exhaust gas upstream of the flow of combustion exhaust gas from an adsorption tank having an adsorbent that adsorbs carbon dioxide. In this technology, by dehumidifying the combustion exhaust gas, the adsorbent suppresses the adsorption of water, and carbon dioxide can be efficiently stored in the adsorption tank.

特開２０１６−０６３７５５号公報JP-A-2016-063755

しかしながら、吸着タンクが冷却されると吸着タンクで結露が発生し、結露による水分が吸着材に吸着される。この場合、吸着タンクでの二酸化炭素の吸着効率が低下するという問題があった。 However, when the adsorption tank is cooled, dew condensation occurs in the adsorption tank, and the moisture due to the dew condensation is adsorbed on the adsorbent. In this case, there is a problem that the adsorption efficiency of carbon dioxide in the adsorption tank is lowered.

本開示の一側面は、二酸化炭素を回収および供給する二酸化炭素施用装置において、吸着タンクでの結露を抑制できるようにすることが望ましい。 One aspect of the present disclosure is that it is desirable to be able to suppress dew condensation in the adsorption tank in a carbon dioxide application device that recovers and supplies carbon dioxide.

本開示の一側面の二酸化炭素施用装置は、燃焼排ガスに含まれる二酸化炭素を回収し、農業用ハウス内に供給するように構成された二酸化炭素施用装置であって、少なくとも１つの液体貯留タンクと、吸着タンクと、供給流路と、を備える。 The carbon dioxide application device according to one aspect of the present disclosure is a carbon dioxide application device configured to recover carbon dioxide contained in combustion exhaust gas and supply it into an agricultural house, and includes at least one liquid storage tank. , A suction tank and a supply flow path are provided.

液体貯留タンクは、液体を貯留し、燃焼排ガスが液体中を通過するように構成される。吸着タンクは、液体中を通過した燃焼排ガス中の二酸化炭素を吸着するように構成された吸着材を有し、液体貯留タンクよりも高温となる位置に配置される。供給流路は、燃焼排ガスを、液体貯留タンクを経由して吸着タンクに供給するように構成される。 The liquid storage tank is configured to store the liquid and allow the combustion exhaust gas to pass through the liquid. The adsorption tank has an adsorbent configured to adsorb carbon dioxide in the combustion exhaust gas that has passed through the liquid, and is arranged at a position higher than that of the liquid storage tank. The supply flow path is configured to supply the combustion exhaust gas to the adsorption tank via the liquid storage tank.

すなわち、本開示の二酸化炭素施用装置では、吸着タンクが液体貯留タンクより高温となる位置に配置される。このような構成によれば、液体貯留タンクを通過した燃焼排ガスに対して、吸着タンクでの温度低下を抑制し、相対湿度が上がりにくくすることができる。したがって、吸着タンクでの結露を抑制し、吸着タンクによる二酸化炭素の吸着性能を維持することができる。 That is, in the carbon dioxide application device of the present disclosure, the adsorption tank is arranged at a position where the temperature is higher than that of the liquid storage tank. According to such a configuration, it is possible to suppress a temperature drop in the adsorption tank and prevent the relative humidity from rising with respect to the combustion exhaust gas that has passed through the liquid storage tank. Therefore, it is possible to suppress dew condensation in the adsorption tank and maintain the carbon dioxide adsorption performance by the adsorption tank.

また、このような構成により、液体貯留タンクを通過した燃焼排ガスの温度を上昇させることができれば、燃焼排ガスの相対湿度を下げることができる。
また、本開示の一側面の二酸化炭素施用装置は、吸着タンクが農業用ハウス内に配置され、液体貯留タンクが農業用ハウス外に配置される構成でもよい。 Further, if the temperature of the combustion exhaust gas that has passed through the liquid storage tank can be raised by such a configuration, the relative humidity of the combustion exhaust gas can be lowered.
Further, the carbon dioxide application device on one aspect of the present disclosure may have a configuration in which the adsorption tank is arranged inside the agricultural house and the liquid storage tank is arranged outside the agricultural house.

このような二酸化炭素施用装置によれば、暖房運転によって燃焼排ガスが供給される冬場に、吸着タンクが比較的高温になる農業用ハウス内に配置され、液体貯留タンクが比較的低温になる農業用ハウス外に配置されるので、吸着タンクでの結露を抑制することができる。 According to such a carbon dioxide application device, in winter when combustion exhaust gas is supplied by heating operation, the adsorption tank is placed in an agricultural house where the temperature becomes relatively high, and the liquid storage tank becomes relatively low temperature for agriculture. Since it is placed outside the house, dew condensation in the adsorption tank can be suppressed.

また、本開示の一側面の二酸化炭素施用装置は、吸着タンクを加温するように構成された加温部をさらに備えてもよい。
このような二酸化炭素施用装置によれば、加温部によって吸着タンクがより高温になるように加温することができるので、吸着タンクでの結露をより抑制することができる。 In addition, the carbon dioxide application device on one aspect of the present disclosure may further include a heating unit configured to heat the adsorption tank.
According to such a carbon dioxide application device, the adsorption tank can be heated to a higher temperature by the heating unit, so that dew condensation in the adsorption tank can be further suppressed.

また、本開示の一側面の二酸化炭素施用装置において、加温部は、燃料を燃焼することによって二酸化炭素を含む燃焼排ガスを生成し、該燃焼排ガスの少なくとも一部を供給流路に供給するとともに、該燃焼によって発生する熱の少なくとも一部を、吸着タンクを加温するために利用するように構成されてもよい。 Further, in the carbon dioxide application device on one aspect of the present disclosure, the heating unit generates combustion exhaust gas containing carbon dioxide by burning fuel, and supplies at least a part of the combustion exhaust gas to the supply flow path. , At least a part of the heat generated by the combustion may be configured to be used to heat the adsorption tank.

このような二酸化炭素施用装置によれば、加温部が、燃焼によって生じる二酸化炭素を吸着タンクに供給する機能と、燃焼によって生じる熱を用いて吸着タンクを加温する機能とを有するので、これらの機能を別の装置を用いて実現する構成と比較して、二酸化炭素施用装置を小型化することができる。
なお、本開示の二酸化炭素施用装置においては、燃焼排ガスの一部が通過する流路であって、吸着タンクと接するように構成された排ガス流路を備えてもよい。 According to such a carbon dioxide application device, the heating unit has a function of supplying carbon dioxide generated by combustion to the adsorption tank and a function of heating the adsorption tank by using the heat generated by combustion. The carbon dioxide application device can be miniaturized as compared with the configuration in which the above functions are realized by using another device.
The carbon dioxide application device of the present disclosure may include an exhaust gas flow path that is a flow path through which a part of the combustion exhaust gas passes and is configured to be in contact with the adsorption tank.

実施形態における二酸化炭素施用装置の構成を概略的に示すブロック図である。It is a block diagram which shows schematic structure of the carbon dioxide application apparatus in embodiment. 実施形態の二酸化炭素施用装置を構成する各装置の配置例を示す平面図である。It is a top view which shows the arrangement example of each apparatus which comprises the carbon dioxide application apparatus of embodiment. 比較例（その１）の二酸化炭素施用装置を構成する各装置の配置例を示す平面図である。It is a top view which shows the arrangement example of each apparatus which comprises the carbon dioxide application apparatus of the comparative example (the 1). 比較例（その２）の二酸化炭素施用装置を構成する各装置の配置例を示す平面図である。It is a top view which shows the arrangement example of each apparatus which comprises the carbon dioxide application apparatus of the comparative example (the 2). 吸着タンクの水分量についての実験例を示すグラフである。It is a graph which shows the experimental example about the water content of the adsorption tank. 他の実施形態における二酸化炭素施用装置の構成を概略的に示すブロック図（その１）である。It is a block diagram (the 1) which shows schematic structure of the carbon dioxide application apparatus in another embodiment. 他の実施形態における二酸化炭素施用装置の構成を概略的に示すブロック図（その２）である。It is a block diagram (part 2) which shows schematic structure of the carbon dioxide application apparatus in another embodiment.

以下、本開示が適用された実施形態について、図面を用いて説明する。
［１．第１実施形態］
［１−１．構成］
図１に示す二酸化炭素施用装置１は、燃焼排ガスに含まれる二酸化炭素を回収し、農業用ハウス内に供給するための装置である。二酸化炭素施用装置１は、後述するように農業用ハウスの内部および外部に構成要素が分散して配置される。 Hereinafter, embodiments to which the present disclosure has been applied will be described with reference to the drawings.
[1. First Embodiment]
[1-1. Constitution]
The carbon dioxide application device 1 shown in FIG. 1 is a device for recovering carbon dioxide contained in combustion exhaust gas and supplying it into an agricultural house. As will be described later, the carbon dioxide application device 1 is arranged with its components dispersed inside and outside the agricultural house.

二酸化炭素施用装置１は、燃焼装置２と、浄化ユニット２０と、ブロワ５と、吸着タンク６と、制御部７と、を備える。浄化ユニット２０は、第１液体貯留タンク３と、第２液体貯留タンク４と、調整弁８と、を備える。浄化ユニット２０には、ブロワ５と、制御部７と、のうちの少なくとも１つが含まれていてもよい。 The carbon dioxide application device 1 includes a combustion device 2, a purification unit 20, a blower 5, an adsorption tank 6, and a control unit 7. The purification unit 20 includes a first liquid storage tank 3, a second liquid storage tank 4, and a regulating valve 8. The purification unit 20 may include at least one of a blower 5 and a control unit 7.

また、二酸化炭素施用装置１は、排ガス流路１０と、第１取込流路１１と、冷却空気流路１２と、第２取込流路１３と、施用空気流路１４と、供給流路１５と、排出流路１６とを備える。第１取込流路１１、第２取込流路１３、供給流路１５は、菅状に形成され、燃焼排ガスを、第１液体貯留タンク３および第２液体貯留タンク４を経由して吸着タンク６に供給するための通路として機能する。 Further, the carbon dioxide application device 1 includes an exhaust gas flow path 10, a first intake flow path 11, a cooling air flow path 12, a second intake flow path 13, an application air flow path 14, and a supply flow path. 15 and a discharge flow path 16. The first intake flow path 11, the second intake flow path 13, and the supply flow path 15 are formed in a tube shape, and the combustion exhaust gas is adsorbed via the first liquid storage tank 3 and the second liquid storage tank 4. It functions as a passage for supplying to the tank 6.

＜燃焼装置＞
燃焼装置２は、主に夜間、重油や灯油等の燃料を燃焼させ、農業用ハウス内の空気を温める装置である。燃焼排ガスは、煙突である排ガス流路１０を介して農業用ハウス外に排出される。 <Combustion device>
The combustion device 2 is a device that warms the air in the agricultural house by burning fuel such as heavy oil and kerosene mainly at night. The combustion exhaust gas is discharged to the outside of the agricultural house through the exhaust gas flow path 10 which is a chimney.

燃焼装置２は、燃焼排ガスの少なくとも一部を第１取込流路１１、第２取込流路１３、供給流路１５に供給する。また、燃焼によって発生する熱の少なくとも一部を、吸着タンク６を加温するために利用するように構成される。 The combustion device 2 supplies at least a part of the combustion exhaust gas to the first intake flow path 11, the second intake flow path 13, and the supply flow path 15. Further, at least a part of the heat generated by combustion is configured to be used for heating the adsorption tank 6.

本実施形態では、燃焼装置２は、農業用ハウス内を加温することによって、農業用ハウス内に配置された吸着タンク６を農業用ハウス内の空気を介して加温する。ただし、排ガス流路１０を吸着タンク６に近づけて配置することによって、排ガス流路１０の熱を用いて吸着タンク６を加温してもよい。 In the present embodiment, the combustion device 2 heats the inside of the agricultural house to heat the adsorption tank 6 arranged in the agricultural house through the air in the agricultural house. However, the suction tank 6 may be heated by using the heat of the exhaust gas flow path 10 by arranging the exhaust gas flow path 10 close to the suction tank 6.

＜第１液体貯留タンク＞
第１液体貯留タンク３は、燃焼装置２から発生した燃焼排ガスの一部を液体Ｌ中に通過させることによって液体Ｌによって冷却および浄化するための装置である。 <1st liquid storage tank>
The first liquid storage tank 3 is a device for cooling and purifying by the liquid L by passing a part of the combustion exhaust gas generated from the combustion device 2 into the liquid L.

第１液体貯留タンク３は、内部に液体Ｌを貯留している。また、第１液体貯留タンク３は、燃焼装置２で発生した燃焼排ガスを取り込み、取り込んだ燃焼排ガスが液体Ｌ中を通過するように構成されている。燃焼排ガスは、液体Ｌとの熱交換により冷却されると共に、液体Ｌに含まれる化合物によって含有する成分の一部が取り除かれる。 The first liquid storage tank 3 stores the liquid L inside. Further, the first liquid storage tank 3 is configured to take in the combustion exhaust gas generated by the combustion device 2 so that the taken-in combustion exhaust gas passes through the liquid L. The combustion exhaust gas is cooled by heat exchange with the liquid L, and a part of the components contained in the compound contained in the liquid L is removed.

具体的には、第１液体貯留タンク３には、第１取込流路１１が接続されており、第１取込流路１１から液体Ｌ中に燃焼排ガスが供給される。第１取込流路１１は、排ガス流路１０に接続され、燃焼排ガスが取り込まれる。第１取込流路１１内には、第１液体貯留タンク３内の液面と同じ位置まで液体Ｌが進入している。 Specifically, the first intake flow path 11 is connected to the first liquid storage tank 3, and the combustion exhaust gas is supplied into the liquid L from the first intake flow path 11. The first intake flow path 11 is connected to the exhaust gas flow path 10, and the combustion exhaust gas is taken in. The liquid L has entered the first intake flow path 11 to the same position as the liquid level in the first liquid storage tank 3.

なお、図１では、第１取込流路１１の端部は、第１液体貯留タンク３の下面に接続されているが、第１取込流路１１の端部は第１液体貯留タンク３の側面に接続されてもよい。また、第１取込流路１１は、第１液体貯留タンク３の上面から第１液体貯留タンク３の内部を通って液体Ｌ中に開口するように配置されてもよい。後述する第２液体貯留タンク４の第２取込流路１３についても同様である。 In FIG. 1, the end of the first intake flow path 11 is connected to the lower surface of the first liquid storage tank 3, but the end of the first intake flow path 11 is the first liquid storage tank 3. It may be connected to the side surface of. Further, the first intake flow path 11 may be arranged so as to open into the liquid L from the upper surface of the first liquid storage tank 3 through the inside of the first liquid storage tank 3. The same applies to the second intake flow path 13 of the second liquid storage tank 4, which will be described later.

液体Ｌ中に供給された燃焼排ガスは、液体Ｌ中を気泡となって浮上する。つまり、バブリングが行われる。液体Ｌ中を通過した燃焼排ガスは、第２取込流路１３によって、第２液体貯留タンク４に取り込まれる。 The combustion exhaust gas supplied into the liquid L floats in the liquid L as bubbles. That is, bubbling is performed. The combustion exhaust gas that has passed through the liquid L is taken into the second liquid storage tank 4 by the second intake flow path 13.

第１液体貯留タンク３に貯留される液体Ｌとしては、燃焼排ガス中に含まれる硫化物や窒化物等の有害物質を除去できるものが好ましい。例えば、硫化物や窒化物と反応する化合物の水溶液が液体Ｌとして好適に使用できる。 As the liquid L stored in the first liquid storage tank 3, it is preferable that the liquid L can remove harmful substances such as sulfides and nitrides contained in the combustion exhaust gas. For example, an aqueous solution of a compound that reacts with sulfide or nitride can be suitably used as the liquid L.

また、第１液体貯留タンク３には、排水路１７が設けられている。排水路１７は、液体Ｌの液位が上昇した際に、液圧によって液体Ｌを第１液体貯留タンク３の外部に排出することで、液体Ｌの液位を一定に保つための流路である。 Further, the first liquid storage tank 3 is provided with a drainage channel 17. The drainage channel 17 is a flow path for keeping the liquid level of the liquid L constant by discharging the liquid L to the outside of the first liquid storage tank 3 by the liquid pressure when the liquid level of the liquid L rises. is there.

本実施形態では、排水路１７には、チャッキ弁（つまり逆止弁）１７Ａが設けられている。なお、液体Ｌの液位の上昇に合わせて液体Ｌを排出できる構成であれば、必ずしも排水路１７にチャッキ弁１７Ａが設けられる必要はない。 In the present embodiment, the drainage channel 17 is provided with a check valve (that is, a check valve) 17A. The check valve 17A does not necessarily have to be provided in the drainage channel 17 as long as the liquid L can be discharged as the liquid level rises.

第１液体貯留タンク３には、液体Ｌを冷却するための冷却空気流路１２が接続されている。冷却空気流路１２は、冷却空気を液体Ｌ中に供給することで、液体Ｌを冷却する。冷却空気流路１２は、冷却配管１２Ａと、開閉弁１２Ｂとを有する。 A cooling air flow path 12 for cooling the liquid L is connected to the first liquid storage tank 3. The cooling air flow path 12 cools the liquid L by supplying cooling air into the liquid L. The cooling air flow path 12 has a cooling pipe 12A and an on-off valve 12B.

冷却配管１２Ａは、一方の端部が第１液体貯留タンク３内の液体Ｌ中に配置されている。冷却配管１２Ａの他方の端部は、図示しない冷却空気の供給源に接続されている。
開閉弁１２Ｂは、冷却配管１２Ａ内に取り付けられている。開閉弁１２Ｂは、冷却配管１２Ａによる冷却空気の供給時に開けられる。開閉弁１２Ｂは、例えばソレノイド弁を用いることができる。 One end of the cooling pipe 12A is arranged in the liquid L in the first liquid storage tank 3. The other end of the cooling pipe 12A is connected to a source of cooling air (not shown).
The on-off valve 12B is installed in the cooling pipe 12A. The on-off valve 12B is opened when the cooling air is supplied by the cooling pipe 12A. As the on-off valve 12B, for example, a solenoid valve can be used.

第１液体貯留タンク３内の液体Ｌ中に供給された冷却空気は、第２取込流路１３によって、第２液体貯留タンク４内の液体Ｌ中に供給される。つまり、冷却空気流路１２から供給される冷却空気は、第１液体貯留タンク３内の液体Ｌと第２液体貯留タンク４内の液体Ｌとを冷却する。 The cooling air supplied into the liquid L in the first liquid storage tank 3 is supplied into the liquid L in the second liquid storage tank 4 by the second intake flow path 13. That is, the cooling air supplied from the cooling air flow path 12 cools the liquid L in the first liquid storage tank 3 and the liquid L in the second liquid storage tank 4.

＜第２液体貯留タンク＞
第２液体貯留タンク４は、第１液体貯留タンク３を通過した燃焼排ガスを再度冷却および浄化するための装置である。つまり、二酸化炭素施用装置１は、燃焼排ガスを２段階で冷却および浄化する。 <Second liquid storage tank>
The second liquid storage tank 4 is a device for cooling and purifying the combustion exhaust gas that has passed through the first liquid storage tank 3 again. That is, the carbon dioxide application device 1 cools and purifies the combustion exhaust gas in two stages.

第２液体貯留タンク４は、内部に第１液体貯留タンク３と同様の液体Ｌを貯留している。また、第２液体貯留タンク４は、第１液体貯留タンク３を通過した燃焼排ガスを取り込み、取り込んだ燃焼排ガスが液体Ｌ中を通過するように構成されている。 The second liquid storage tank 4 stores the same liquid L as the first liquid storage tank 3 inside. Further, the second liquid storage tank 4 is configured to take in the combustion exhaust gas that has passed through the first liquid storage tank 3 so that the taken-in combustion exhaust gas passes through the liquid L.

具体的には、第２液体貯留タンク４には、第２取込流路１３が接続されており、第２取込流路１３から液体Ｌ中に燃焼排ガスが供給される。液体Ｌを通過した燃焼排ガスは、供給流路１５によって、吸着タンク６に供給される。第２液体貯留タンク４には、第１液体貯留タンク３と同様の排水路１７が設けられている。なお、第２取込流路１３内には、第２液体貯留タンク４内の液面と同じ位置まで液体Ｌが進入している。 Specifically, the second intake flow path 13 is connected to the second liquid storage tank 4, and the combustion exhaust gas is supplied into the liquid L from the second intake flow path 13. The combustion exhaust gas that has passed through the liquid L is supplied to the adsorption tank 6 by the supply flow path 15. The second liquid storage tank 4 is provided with a drainage channel 17 similar to that of the first liquid storage tank 3. The liquid L has entered the second intake flow path 13 to the same position as the liquid level in the second liquid storage tank 4.

供給流路１５は、第１供給配管１５Ａと、第２供給配管１５Ｂとを有する。第１供給配管１５Ａは、第２液体貯留タンク４内の液面よりも上方の空間に一方の端部が配置されている。第１供給配管１５Ａの他方の端部は、第２供給配管１５Ｂと、後述する施用配管１４Ａとに接続されている。 The supply flow path 15 has a first supply pipe 15A and a second supply pipe 15B. One end of the first supply pipe 15A is arranged in a space above the liquid level in the second liquid storage tank 4. The other end of the first supply pipe 15A is connected to the second supply pipe 15B and the application pipe 14A described later.

＜ブロワ＞
ブロワ５は、燃焼排ガスを吸着タンク６に供給するための装置である。ブロワ５は、供給流路１５の第２供給配管１５Ｂに配置されている。 <Blower>
The blower 5 is a device for supplying the combustion exhaust gas to the adsorption tank 6. The blower 5 is arranged in the second supply pipe 15B of the supply flow path 15.

二酸化炭素の吸着工程では、ブロワ５の運転により、第１液体貯留タンク３および第２液体貯留タンク４内が負圧となり、燃焼装置２で発生した燃焼排ガスが第１液体貯留タンク３および第２液体貯留タンク４を経由して吸着タンク６に圧送される。 In the carbon dioxide adsorption step, the operation of the blower 5 creates a negative pressure in the first liquid storage tank 3 and the second liquid storage tank 4, and the combustion exhaust gas generated in the combustion device 2 becomes the first liquid storage tank 3 and the second liquid storage tank 3. It is pumped to the adsorption tank 6 via the liquid storage tank 4.

＜吸着タンク＞
吸着タンク６は、燃焼排ガス中の二酸化炭素を吸着する吸着材６Ａが内部に配置されている。二酸化炭素の吸着工程では、ブロワ５によって供給された燃焼排ガス中の二酸化炭素が吸着材６Ａによって吸着される。吸着材６Ａとしては、例えば活性炭、ゼオライト等の多孔質材料などが使用できる。 <Suction tank>
In the adsorption tank 6, an adsorbent 6A that adsorbs carbon dioxide in the combustion exhaust gas is arranged inside. In the carbon dioxide adsorption step, the carbon dioxide in the combustion exhaust gas supplied by the blower 5 is adsorbed by the adsorbent 6A. As the adsorbent 6A, for example, a porous material such as activated carbon or zeolite can be used.

一方、二酸化炭素の施用工程では、施用空気流路１４から施用空気が吸着タンク６内に供給され、吸着材６Ａから二酸化炭素が脱離する。脱離した二酸化炭素は、排出流路１６を介して農業用ハウス内に施用される。 On the other hand, in the carbon dioxide application step, the application air is supplied into the adsorption tank 6 from the application air flow path 14, and the carbon dioxide is desorbed from the adsorbent 6A. The desorbed carbon dioxide is applied to the agricultural house via the discharge channel 16.

なお、本実施形態では、施用空気流路１４は供給流路１５に接続されている。具体的には、施用空気流路１４と供給流路１５とは第２供給配管１５Ｂを共有している。また、施用空気流路１４は、施用配管１４Ａと、開閉弁１４Ｂとを有する。 In this embodiment, the application air flow path 14 is connected to the supply flow path 15. Specifically, the application air flow path 14 and the supply flow path 15 share the second supply pipe 15B. Further, the application air flow path 14 has an application pipe 14A and an on-off valve 14B.

施用配管１４Ａは、一方の端部が第２供給配管１５Ｂに接続されている。施用配管１４Ａの他方の端部は、大気に開放している。開閉弁１４Ｂは、施用配管１４Ａ内に取り付けられている。開閉弁１４Ｂは、施用配管１４Ａによる施用空気の供給時に開けられる。開閉弁１４Ｂは、例えばソレノイド弁を用いることができる。施用配管１４Ａから流入した施用空気の流入圧力は、第２液体貯留タンク４の液面を押し下げる圧力よりも小さいため、施用空気は供給流路１５に導かれる。 One end of the application pipe 14A is connected to the second supply pipe 15B. The other end of the application pipe 14A is open to the atmosphere. The on-off valve 14B is installed in the application pipe 14A. The on-off valve 14B is opened when the application air is supplied by the application pipe 14A. As the on-off valve 14B, for example, a solenoid valve can be used. Since the inflow pressure of the application air flowing in from the application pipe 14A is smaller than the pressure for pushing down the liquid level of the second liquid storage tank 4, the application air is guided to the supply flow path 15.

＜制御部＞
制御部７は、二酸化炭素施用装置１の運転を制御する装置である。具体的には、制御部７は、ブロワ５の運転および停止、ソレノイド弁の開閉等を制御する。 <Control unit>
The control unit 7 is a device that controls the operation of the carbon dioxide application device 1. Specifically, the control unit 7 controls the operation and stop of the blower 5, the opening and closing of the solenoid valve, and the like.

＜調整機構＞
本実施形態では、二酸化炭素施用装置１は、第１液体貯留タンク３および第２液体貯留タンク４内の圧力を調整する調整機構として、調整弁８を備える。 <Adjustment mechanism>
In the present embodiment, the carbon dioxide application device 1 includes a regulating valve 8 as a regulating mechanism for adjusting the pressure in the first liquid storage tank 3 and the second liquid storage tank 4.

調整弁８は、ブロワ５の運転停止後における吸着タンク６から第２液体貯留タンク４内へのガスの流れを遮断する遮断機構である。調整弁８は、ブロワ５の運転停止後における第１液体貯留タンク３および第２液体貯留タンク４内の圧力の上昇を抑制する。 The regulating valve 8 is a shutoff mechanism that shuts off the flow of gas from the suction tank 6 to the second liquid storage tank 4 after the operation of the blower 5 is stopped. The regulating valve 8 suppresses an increase in pressure in the first liquid storage tank 3 and the second liquid storage tank 4 after the operation of the blower 5 is stopped.

調整弁８は、供給流路１５における吸着タンク６よりも燃焼排ガスの流れ方向における上流側に配置される。本実施形態では、調整弁８は、供給流路１５においてブロワ５よりも上流側に配置されている。 The regulating valve 8 is arranged on the upstream side in the flow direction of the combustion exhaust gas with respect to the adsorption tank 6 in the supply flow path 15. In the present embodiment, the regulating valve 8 is arranged on the upstream side of the blower 5 in the supply flow path 15.

調整弁８としては、例えばチャッキ弁が使用できる。また、調整弁８としてゲート弁、グローブ弁、ボール弁等を使用し、二酸化炭素の吸着工程では調整弁８を開けておき、ブロワ５の運転停止後に手動又は制御部７によって調整弁８を閉めるように構成してもよい。ただし、調整弁８をチャッキ弁とすることで、調整機構の構成が簡潔になると共に、コストを低減できる。 As the adjusting valve 8, for example, a check valve can be used. Further, a gate valve, a globe valve, a ball valve, or the like is used as the adjusting valve 8, the adjusting valve 8 is opened in the carbon dioxide adsorption step, and the adjusting valve 8 is closed manually or by the control unit 7 after the operation of the blower 5 is stopped. It may be configured as follows. However, by using the adjusting valve 8 as a check valve, the configuration of the adjusting mechanism can be simplified and the cost can be reduced.

［１−２．配置］
二酸化炭素施用装置１においては、図２に示すように、燃焼装置２および吸着タンク６が農業用ハウス内１００Ａに配置され、浄化ユニット２０が農業用ハウス外１００Ｂに配置される。なお、二酸化炭素施用装置１を構成する各装置のうちの燃焼装置２、吸着タンク６、および浄化ユニット２０以外の装置については、農業用ハウス１００内外の任意の位置に配置されればよい。すなわち、吸着タンク６は、浄化ユニット２０よりも高温となる位置に配置される。 [1-2. Placement]
In the carbon dioxide application device 1, as shown in FIG. 2, the combustion device 2 and the adsorption tank 6 are arranged in 100A inside the agricultural house, and the purification unit 20 is arranged in 100B outside the agricultural house. The devices other than the combustion device 2, the adsorption tank 6, and the purification unit 20 among the devices constituting the carbon dioxide application device 1 may be arranged at arbitrary positions inside and outside the agricultural house 100. That is, the adsorption tank 6 is arranged at a position where the temperature is higher than that of the purification unit 20.

［１−３．実験例］
発明者は上記実施形態の二酸化炭素施用装置１の優位性を証明する実験を行った。図３には第１比較例の二酸化炭素施用装置１Ｙの構成を示し、図４には第２比較例の二酸化炭素施用装置１Ｚの構成を示す。 [1-3. Experimental example]
The inventor conducted an experiment to prove the superiority of the carbon dioxide application device 1 of the above embodiment. FIG. 3 shows the configuration of the carbon dioxide application device 1Y of the first comparative example, and FIG. 4 shows the configuration of the carbon dioxide application device 1Z of the second comparative example.

本実験例では、吸着材６Ａへの二酸化炭素の吸着量を直接的に測定するのではなく、吸着材６Ａへの水分の吸着量、すなわち水分量を測定することにした。このようにするのは、吸着材６Ａに水分が吸着されるにつれて、吸着材６Ａでの二酸化炭素の吸着量が減少するからである。つまり、吸着材６Ａの水分量が少ないほど、吸着材６Ａはより多くの二酸化炭素を吸着できる。 In this experimental example, it was decided to measure the amount of water adsorbed on the adsorbent 6A, that is, the amount of water, instead of directly measuring the amount of carbon dioxide adsorbed on the adsorbent 6A. This is because the amount of carbon dioxide adsorbed by the adsorbent 6A decreases as the water is adsorbed by the adsorbent 6A. That is, the smaller the water content of the adsorbent 6A, the more carbon dioxide can be adsorbed by the adsorbent 6A.

第１比較例の二酸化炭素施用装置１Ｙでは、燃焼装置２、浄化ユニット２０、吸着タンク６の全てが農業用ハウス内１００Ａに配置される。また、第２比較例の二酸化炭素施用装置１Ｚでは、燃焼装置２が農業用ハウス内１００Ａに配置され、浄化ユニット２０、吸着タンク６が農業用ハウス外１００Ｂに配置される。 In the carbon dioxide application device 1Y of the first comparative example, the combustion device 2, the purification unit 20, and the adsorption tank 6 are all arranged in 100A in the agricultural house. Further, in the carbon dioxide application device 1Z of the second comparative example, the combustion device 2 is arranged in the agricultural house 100A, and the purification unit 20 and the adsorption tank 6 are arranged in the agricultural house outside 100B.

上記実施形態の二酸化炭素施用装置１、第１比較例の二酸化炭素施用装置１Ｙ、第２比較例の二酸化炭素施用装置１Ｚのそれぞれについて、吸着タンク６への二酸化炭素の吸着および施用を実施したときにおいて、吸着タンク６内の水分量の変化を図５に示す。 When carbon dioxide is adsorbed and applied to the adsorption tank 6 for each of the carbon dioxide application device 1 of the above embodiment, the carbon dioxide application device 1Y of the first comparative example, and the carbon dioxide application device 1Z of the second comparative example. The change in the amount of water in the adsorption tank 6 is shown in FIG.

なお、上記実施形態の二酸化炭素施用装置１、第１比較例の二酸化炭素施用装置１Ｙ、第２比較例の二酸化炭素施用装置１Ｚの何れについても、吸着時における農業用ハウス内１００Ａの気温は１５℃、農業用ハウス外１００Ｂの気温は５℃とした。また、施用時における農業用ハウス内１００Ａの気温は２５℃、相対湿度は５０％、農業用ハウス外１００Ｂの気温は１０℃、相対湿度は３０％とした。 In any of the carbon dioxide application device 1 of the above embodiment, the carbon dioxide application device 1Y of the first comparative example, and the carbon dioxide application device 1Z of the second comparative example, the temperature of 100A in the agricultural house at the time of adsorption is 15. The temperature of 100B outside the agricultural house was set to 5 ° C. At the time of application, the temperature inside the agricultural house 100A was 25 ° C. and the relative humidity was 50%, and the temperature outside the agricultural house 100B was 10 ° C. and the relative humidity was 30%.

また、本実験例では、初期の水分量が概ね等しくされた吸着材６Ａを用いて、最初の約６０分間に同条件で燃焼を行う燃焼装置２にて燃料を燃焼することで吸着材６Ａに対する二酸化炭素の吸着を行い、その後、燃焼装置２を停止させるとともに気温等の条件を変更し、３００分間に渡って二酸化炭素の施用を実施した。 Further, in this experimental example, the adsorbent 6A having almost the same initial water content is used, and the fuel is burned in the combustion device 2 that burns under the same conditions for the first about 60 minutes to obtain the adsorbent 6A. After adsorbing carbon dioxide, the combustion device 2 was stopped, conditions such as temperature were changed, and carbon dioxide was applied for 300 minutes.

図５からは、第１比較例の二酸化炭素施用装置１Ｙおよび第２比較例の二酸化炭素施用装置１Ｚでは、二酸化炭素の吸着時に０．３−０．４ｋｇ程度、水分量が増加するが、本実施形態の二酸化炭素施用装置１では、０．０５ｋｇ程度だけ水分量が増加することが分かる。つまり、本実施形態の二酸化炭素施用装置１では、水分量の増加が１／６−１／８程度に抑制でき、より多くの二酸化炭素の吸着できることが分かる。 From FIG. 5, in the carbon dioxide application device 1Y of the first comparative example and the carbon dioxide application device 1Z of the second comparative example, the water content increases by about 0.3-0.4 kg when carbon dioxide is adsorbed. It can be seen that in the carbon dioxide application device 1 of the embodiment, the water content increases by about 0.05 kg. That is, it can be seen that in the carbon dioxide application device 1 of the present embodiment, the increase in water content can be suppressed to about 1 / 6-1 / 8, and more carbon dioxide can be adsorbed.

［１−２．効果］
以上詳述した実施形態によれば、以下の効果が得られる。
（１ａ）上記の二酸化炭素施用装置１は、燃焼排ガスに含まれる二酸化炭素を回収し、農業用ハウス内１００Ａに供給するように構成された二酸化炭素施用装置１であって、少なくとも１つの第１液体貯留タンク３、第２液体貯留タンク４と、吸着タンク６と、第１取込流路１１、第２取込流路１３、供給流路１５と、を備える。 [1-2. effect]
According to the embodiment described in detail above, the following effects can be obtained.
(1a) The carbon dioxide application device 1 is a carbon dioxide application device 1 configured to recover carbon dioxide contained in combustion exhaust gas and supply it to 100A in an agricultural house, and is at least one first. It includes a liquid storage tank 3, a second liquid storage tank 4, a suction tank 6, a first intake flow path 11, a second intake flow path 13, and a supply flow path 15.

第１液体貯留タンク３、第２液体貯留タンク４は、液体Ｌを貯留し、燃焼排ガスが液体Ｌ中を通過するように構成される。吸着タンク６は、液体Ｌ中を通過した燃焼排ガス中の二酸化炭素を吸着するように構成された吸着材６Ａを有し、第１液体貯留タンク３、第２液体貯留タンク４よりも高温となる位置に配置される。第１取込流路１１、第２取込流路１３、供給流路１５は、燃焼排ガスを、第１液体貯留タンク３、第２液体貯留タンク４を経由して吸着タンク６に供給するように構成される。 The first liquid storage tank 3 and the second liquid storage tank 4 are configured to store the liquid L and allow the combustion exhaust gas to pass through the liquid L. The adsorption tank 6 has an adsorbent 6A configured to adsorb carbon dioxide in the combustion exhaust gas that has passed through the liquid L, and has a higher temperature than the first liquid storage tank 3 and the second liquid storage tank 4. Placed in position. The first intake flow path 11, the second intake flow path 13, and the supply flow path 15 supply the combustion exhaust gas to the adsorption tank 6 via the first liquid storage tank 3 and the second liquid storage tank 4. It is composed of.

このような構成によれば、第１液体貯留タンク３、第２液体貯留タンク４は、比較的雰囲気温度が低い場所に配置されているため、タンク３，４中の液体Ｌの温度は比較的低い温度に維持される。このため、燃焼排ガスは、液体Ｌを通過することで、吸着タンク６の雰囲気温度よりも低温、或いは吸着タンク６の雰囲気温度と同程度の温度にまで冷却される。 According to such a configuration, since the first liquid storage tank 3 and the second liquid storage tank 4 are arranged in a place where the ambient temperature is relatively low, the temperature of the liquid L in the tanks 3 and 4 is relatively high. Maintained at a low temperature. Therefore, the combustion exhaust gas is cooled to a temperature lower than the atmospheric temperature of the adsorption tank 6 or to a temperature similar to the atmospheric temperature of the adsorption tank 6 by passing through the liquid L.

二酸化炭素施用装置１は、このような作用によって、第１液体貯留タンク３、第２液体貯留タンク４を通過した燃焼排ガスに対して、吸着タンク６での温度低下を抑制し、相対湿度が上がりにくくすることができる。したがって、吸着タンク６での結露を抑制し、吸着タンク６による二酸化炭素の吸着性能を維持することができる。 Due to such an action, the carbon dioxide application device 1 suppresses the temperature drop in the adsorption tank 6 with respect to the combustion exhaust gas that has passed through the first liquid storage tank 3 and the second liquid storage tank 4, and the relative humidity rises. It can be made difficult. Therefore, it is possible to suppress dew condensation in the adsorption tank 6 and maintain the carbon dioxide adsorption performance by the adsorption tank 6.

また、このような構成により、第１液体貯留タンク３、第２液体貯留タンク４を通過した燃焼排ガスの温度を上昇させることができれば、燃焼排ガスの相対湿度を下げることができる。 Further, if the temperature of the combustion exhaust gas that has passed through the first liquid storage tank 3 and the second liquid storage tank 4 can be raised by such a configuration, the relative humidity of the combustion exhaust gas can be lowered.

（１ｂ）上記の二酸化炭素施用装置１は、吸着タンク６が農業用ハウス内１００Ａに配置され、第１液体貯留タンク３、第２液体貯留タンク４を含む浄化ユニット２０が農業用ハウス外１００Ｂに配置されて構成される。 (1b) In the carbon dioxide application device 1, the adsorption tank 6 is arranged in 100A inside the agricultural house, and the purification unit 20 including the first liquid storage tank 3 and the second liquid storage tank 4 is located 100B outside the agricultural house. Arranged and configured.

このような二酸化炭素施用装置１によれば、暖房運転によって燃焼排ガスが供給される冬場に、吸着タンク６が比較的高温になる農業用ハウス内１００Ａに配置され、第１液体貯留タンク３、第２液体貯留タンク４が比較的低温になる農業用ハウス外１００Ｂに配置されるので、吸着タンク６での結露を抑制することができる。 According to such a carbon dioxide application device 1, in winter when combustion exhaust gas is supplied by heating operation, the adsorption tank 6 is arranged in 100A in an agricultural house where the temperature becomes relatively high, and the first liquid storage tank 3 and the first 2 Since the liquid storage tank 4 is arranged outside the agricultural house 100B where the temperature becomes relatively low, dew condensation in the adsorption tank 6 can be suppressed.

（１ｃ）上記の二酸化炭素施用装置１は、吸着タンク６を加温するように構成された燃焼装置２をさらに備える。
このような二酸化炭素施用装置１によれば、燃焼装置２によって吸着タンク６がより高温になるように加温することができるので、吸着タンク６での結露をより抑制することができる。 (1c) The carbon dioxide application device 1 further includes a combustion device 2 configured to heat the adsorption tank 6.
According to such a carbon dioxide application device 1, the combustion device 2 can heat the adsorption tank 6 so that the temperature becomes higher, so that dew condensation in the adsorption tank 6 can be further suppressed.

（１ｄ）上記の二酸化炭素施用装置１において、燃焼装置２は、燃料を燃焼することによって二酸化炭素を含む燃焼排ガスを生成し、該燃焼排ガスの少なくとも一部を第１取込流路１１、第２取込流路１３、供給流路１５に供給するとともに、該燃焼によって発生する熱の少なくとも一部を、吸着タンク６を加温するために利用するように構成される。 (1d) In the carbon dioxide application device 1 described above, the combustion device 2 produces combustion exhaust gas containing carbon dioxide by burning fuel, and at least a part of the combustion exhaust gas is used in the first intake flow path 11 and the first. 2 The intake flow path 13 and the supply flow path 15 are supplied, and at least a part of the heat generated by the combustion is used to heat the suction tank 6.

このような二酸化炭素施用装置１によれば、燃焼装置２が、燃焼によって生じる二酸化炭素を吸着タンク６に供給する機能と、燃焼によって生じる熱を用いて吸着タンク６を加温する機能とを有するので、これらの機能を別の装置を用いて実現する構成と比較して、二酸化炭素施用装置１を小型化することができる。 According to such a carbon dioxide application device 1, the combustion device 2 has a function of supplying carbon dioxide generated by combustion to the adsorption tank 6 and a function of heating the adsorption tank 6 by using the heat generated by combustion. Therefore, the carbon dioxide application device 1 can be miniaturized as compared with a configuration in which these functions are realized by using another device.

［２．他の実施形態］
以上、本開示の実施形態について説明したが、本開示は、上記実施形態に限定されることなく、種々の形態を採り得ることは言うまでもない。 [2. Other Embodiments]
Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above embodiments and can take various forms.

（２ａ）上記実施形態の二酸化炭素施用装置１においては、燃焼装置２を農業用ハウス内１００Ａに配置したが、農業用ハウス外１００Ｂに配置してもよい。
（２ｂ）上記実施形態の二酸化炭素施用装置１において、液体Ｌを貯留する液体貯留タンクの数は１つでもよい。また、二酸化炭素施用装置は、３つ以上の液体貯留タンクを備えてもよい。 (2a) In the carbon dioxide application device 1 of the above embodiment, the combustion device 2 is arranged in 100A inside the agricultural house, but may be arranged in 100B outside the agricultural house.
(2b) In the carbon dioxide application device 1 of the above embodiment, the number of liquid storage tanks for storing the liquid L may be one. In addition, the carbon dioxide application device may include three or more liquid storage tanks.

（２ｃ）上記実施形態の二酸化炭素施用装置１において、制御部７は、ブロワ５の回転数の制御に加えて、排出流路１６の開閉弁１６Ａの開度を制御してもよい。つまり、吸着タンク６内の圧力よりもブロワ５の下流側の圧力が常に大きくなるように開閉弁１６Ａを徐々に開けるように制御してもよい。 (2c) In the carbon dioxide application device 1 of the above embodiment, the control unit 7 may control the opening degree of the on-off valve 16A of the discharge flow path 16 in addition to controlling the rotation speed of the blower 5. That is, the on-off valve 16A may be controlled to be gradually opened so that the pressure on the downstream side of the blower 5 is always larger than the pressure in the suction tank 6.

（２ｄ）上記の二酸化炭素施用装置１は、農業用ハウスを加温するための燃焼装置２を用いて吸着タンク６を加温するように構成したが、図６に示すように、燃焼装置２とは別に、吸着タンク６を加温するための加温装置１８をさらに備えてもよい。加温装置１８には、例えば、電熱線方式の周知のヒータ、或いは周知のボイラ等を採用できる。 (2d) The carbon dioxide application device 1 described above is configured to heat the adsorption tank 6 by using the combustion device 2 for heating the agricultural house. As shown in FIG. 6, the combustion device 2 is used. Separately, a heating device 18 for heating the adsorption tank 6 may be further provided. For the heating device 18, for example, a well-known heating wire type heater, a well-known boiler, or the like can be adopted.

このような構成によれば、燃焼装置２とは別体の加温装置１８を用いて吸着タンク６の温度を調整することができるので、ハウス内の温度とは独立して吸着タンク６の温度を管理することができる。 According to such a configuration, the temperature of the adsorption tank 6 can be adjusted by using a heating device 18 separate from the combustion device 2, so that the temperature of the adsorption tank 6 is independent of the temperature inside the house. Can be managed.

（２ｅ）上記実施形態の二酸化炭素施用装置１は、燃焼排ガスの熱の一部を農業用ハウス内に供給し、間接的に吸着タンク６を加温するために利用するように構成したが、燃焼排ガスの少なくとも一部を、直接的に吸着タンク６を加温するために利用してもよい。 (2e) The carbon dioxide application device 1 of the above embodiment is configured to supply a part of the heat of the combustion exhaust gas into the agricultural house and indirectly use it for heating the adsorption tank 6. At least a part of the combustion exhaust gas may be used to directly heat the adsorption tank 6.

例えば、図７に示すように、排ガス流路１０と吸着タンク６とが接するように、排ガス流路１０を吸着タンク６側に迂回して配置するとよい。
このような構成によれば、燃焼排ガスの熱を用いて吸着タンク６を直接的に加温できるので、吸着タンク６をより高温とすることができ、吸着タンク６での結露を抑制することができる。 For example, as shown in FIG. 7, the exhaust gas flow path 10 may be arranged so as to bypass the suction tank 6 side so that the exhaust gas flow path 10 and the adsorption tank 6 are in contact with each other.
According to such a configuration, since the adsorption tank 6 can be directly heated by using the heat of the combustion exhaust gas, the adsorption tank 6 can be heated to a higher temperature, and dew condensation in the adsorption tank 6 can be suppressed. it can.

（２ｆ）上記実施形態における１つの構成要素が有する機能を複数の構成要素として分散させたり、複数の構成要素が有する機能を１つの構成要素に統合したりしてもよい。また、上記実施形態の構成の一部を省略してもよい。また、上記実施形態の構成の少なくとも一部を、他の上記実施形態の構成に対して付加、置換等してもよい。なお、特許請求の範囲に記載の文言から特定される技術思想に含まれるあらゆる態様が本開示の実施形態である。 (2f) The functions of one component in the above embodiment may be dispersed as a plurality of components, or the functions of the plurality of components may be integrated into one component. Moreover, you may omit a part of structure of the said embodiment. Further, at least a part of the configuration of the above-described embodiment may be added to or replaced with the configuration of the other above-described embodiment. It should be noted that all aspects included in the technical idea specified by the wording recited in the claims are embodiments of the present disclosure.

［３．実施形態の構成と本開示の構成との対応関係］
上記実施形態での燃焼装置２は本開示での加温部に相当し、上記実施形態での第１液体貯留タンク３、第２液体貯留タンク４は本開示での液体貯留タンクに相当する。また、上記実施形態での第１取込流路１１、第２取込流路１３、供給流路１５は本開示での供給流路に相当する。 [3. Correspondence between the configuration of the embodiment and the configuration of the present disclosure]
The combustion device 2 in the above embodiment corresponds to the heating unit in the present disclosure, and the first liquid storage tank 3 and the second liquid storage tank 4 in the above embodiment correspond to the liquid storage tank in the present disclosure. Further, the first intake flow path 11, the second intake flow path 13, and the supply flow path 15 in the above embodiment correspond to the supply flow paths in the present disclosure.

１，１Ｙ，１Ｚ…二酸化炭素施用装置、２…燃焼装置、３…第１液体貯留タンク、４…第２液体貯留タンク、５…ブロワ、６…吸着タンク、６Ａ…吸着材、７…制御部、８…調整弁、１０…排ガス流路、１１…第１取込流路、１２…冷却空気流路、１２Ａ…冷却配管、１２Ｂ…開閉弁、１３…第２取込流路、１４…施用空気流路、１４Ａ…施用配管、１４Ｂ…開閉弁、１５…供給流路、１５Ａ…第１供給配管、１５Ｂ…第２供給配管、１６…排出流路、１６Ａ…開閉弁、１７…排水路、１７Ａ…チャッキ弁、２０…浄化ユニット、１００…農業用ハウス、１００Ａ…農業用ハウス内、１００Ｂ…農業用ハウス外、Ｌ…液体。 1,1Y, 1Z ... Carbon dioxide application device, 2 ... Combustion device, 3 ... First liquid storage tank, 4 ... Second liquid storage tank, 5 ... Blower, 6 ... Suction tank, 6A ... Adsorbent, 7 ... Control unit , 8 ... Adjusting valve, 10 ... Exhaust flow path, 11 ... First intake flow path, 12 ... Cooling air flow path, 12A ... Cooling pipe, 12B ... On / off valve, 13 ... Second intake flow path, 14 ... Application Air flow path, 14A ... Application pipe, 14B ... On-off valve, 15 ... Supply flow path, 15A ... First supply pipe, 15B ... Second supply pipe, 16 ... Discharge flow path, 16A ... On-off valve, 17 ... Drainage channel, 17A ... check valve, 20 ... purification unit, 100 ... agricultural house, 100A ... inside the agricultural house, 100B ... outside the agricultural house, L ... liquid.

Claims (4)

燃焼排ガスに含まれる二酸化炭素を回収し、農業用ハウス内に供給するように構成された二酸化炭素施用装置であって、
液体を貯留し、燃焼排ガスが前記液体中を通過するように構成された少なくとも１つの液体貯留タンクと、
前記液体中を通過した燃焼排ガス中の二酸化炭素を吸着するように構成された吸着材を有し、前記液体貯留タンクよりも高温となるように構成された吸着タンクと、
前記燃焼排ガスを、前記液体貯留タンクを経由して前記吸着タンクに供給するように構成された供給流路と、
を備え、
前記吸着タンクは、冬場に比較的高温になる前記農業用ハウス内に配置され、前記液体貯留タンクは、冬場に比較的低温になる前記農業用ハウス外に配置される
ように構成された二酸化炭素施用装置。 A carbon dioxide application device configured to recover carbon dioxide contained in combustion exhaust gas and supply it into an agricultural house.
At least one liquid storage tank configured to store the liquid and allow the flue gas to pass through the liquid.
An adsorption tank having an adsorbent configured to adsorb carbon dioxide in the combustion exhaust gas that has passed through the liquid and having a temperature higher than that of the liquid storage tank.
A supply flow path configured to supply the combustion exhaust gas to the adsorption tank via the liquid storage tank, and
With
The adsorption tank is arranged inside the agricultural house, which becomes relatively hot in winter, and the liquid storage tank is arranged outside the agricultural house, which becomes relatively cold in winter. Application device. 請求項１に記載の二酸化炭素施用装置であって、
前記吸着タンクを加温するように構成された加温部、
をさらに備える二酸化炭素施用装置。 The carbon dioxide application device according to claim 1 .
Warming unit configured to pre-Symbol adsorption tank to heating,
A carbon dioxide application device further equipped with. 請求項２に記載の二酸化炭素施用装置であって、
前記加温部は、燃料を燃焼することによって二酸化炭素を含む燃焼排ガスを生成し、該燃焼排ガスの少なくとも一部を前記供給流路に供給するとともに、該燃焼によって発生す る熱の少なくとも一部を、前記吸着タンクを加温するために利用する
ように構成された二酸化炭素施用装置。 The carbon dioxide application device according to claim 2.
The heating unit generates combustion exhaust gas containing carbon dioxide by burning fuel, supplies at least a part of the combustion exhaust gas to the supply flow path, and at least a part of the heat generated by the combustion. Is a carbon dioxide application device configured to be used for heating the adsorption tank. 請求項１から請求項３の何れか１項に記載の二酸化炭素施用装置であって、
前記燃焼排ガスの一部が通過する流路であって、前記吸着タンクと接するように構成された排ガス流路、
をさらに備える二酸化炭素施用装置。 The carbon dioxide application device according to any one of claims 1 to 3 .
A flow path is part of the previous SL flue gas passes through the exhaust gas passage which is arranged in contact with the suction tank,
A carbon dioxide application device further equipped with.
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