JP2006014628A - Culture apparatus - Google Patents

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JP2006014628A
JP2006014628A JP2004194192A JP2004194192A JP2006014628A JP 2006014628 A JP2006014628 A JP 2006014628A JP 2004194192 A JP2004194192 A JP 2004194192A JP 2004194192 A JP2004194192 A JP 2004194192A JP 2006014628 A JP2006014628 A JP 2006014628A
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light source
light
culture
hollow portion
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Takashi Yoshino
隆 吉野
Takashi Ui
隆司 宇井
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Koito Industries Ltd
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    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M31/00—Means for providing, directing, scattering or concentrating light
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    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/02—Photobioreactors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M31/00—Means for providing, directing, scattering or concentrating light
    • C12M31/08—Means for providing, directing, scattering or concentrating light by conducting or reflecting elements located inside the reactor or in its structure

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a culture apparatus that can minimize loss of light energy even in the high intensity light emitted from the top point in the central axis direction such as an HID light source and can easily inhibit the temperature rise of the culture solution caused by heat radiation from the light source with simple construction without causing cost increase. <P>SOLUTION: This culture apparatus is equipped with a vessel main body 20 that is made of a translucent material in a hollow cylinder form where the center side is vertically opened to form the hollow part 25 and receives the culture solution including the photosynthetic organisms and the light source 30 that is arranged in the hollow part 25 and emits light toward the inside of the vessel main body 20. Further, reflectors 40, 50 each having the light-reflecting faces 41, 51 that reflect the light radiated from the light source 30 to the inside of the vessel main body 20 are arranged at least on one side, on the upper side or on the lower side of the light source 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、藻類等の光合成生物を培養液中で人工的に培養するための培養装置に関し、そのうち特に、魚介類の養殖時の飼料、あるいは有用物質を生産するバイオマス資源として利用可能な各種の緑藻やラン藻等の微細藻類を培養する培養装置に関する。   The present invention relates to a culture apparatus for artificially culturing photosynthetic organisms such as algae in a culture solution, and in particular, various kinds of feed that can be used as a feed for fish and shellfish cultivation, or a biomass resource that produces useful substances. The present invention relates to a culture apparatus for culturing microalgae such as green algae and cyanobacteria.

従来、微細藻類を人工的に培養する技術としては、一般に覆いカバーのない透明平型の大型水槽に培養液を満たし、高圧ナトリウムランプ等のＨＩＤ光源（High Intensity Discharge Lamps）で水槽上部より光を照射し、空気や、二酸化炭素の散気によるエアレーションを行うものが知られている。ところが、この培養技術では、水面で多くの光が反射してしまい、光エネルギーの損失が特に大きいという問題のみならず、微細藻類の培養濃度が高くなると、光が遮られて水槽の底付近まで光が到達しないと言う問題もあった。   Conventionally, as a technique for artificially cultivating microalgae, generally a transparent flat large tank without a cover is filled with the culture solution, and light is emitted from the top of the tank with a high-pressure sodium lamp or other HID light source (High Intensity Discharge Lamps). What performs irradiation and aeration by the aeration of air and a carbon dioxide is known. However, with this culture technique, not only the problem that the light is reflected on the surface of the water and the loss of light energy is particularly large, but also when the culture concentration of microalgae is high, the light is blocked and reaches the bottom of the aquarium. There was also a problem that light did not reach.

このような容認しがたい問題を解決するために、例えば、筒状で内周面が鏡面状である縦長の容器本体の内部中心に、光源を密封した光源筒を配設した技術（例えば、特許文献１参照）や、光を均一に反射できる内面の培養槽内に、光源として空隙を持たせて透明シースで囲ったハロゲンランプを設置し、各シース内に冷却用の空気を導入できる機構を備えた技術（例えば、特許文献２参照）が既に提案されている。   In order to solve such an unacceptable problem, for example, a technique in which a light source tube in which a light source is sealed is disposed at the inner center of a vertically long container body having a cylindrical inner peripheral surface (for example, Patent Document 1) and a mechanism capable of introducing a cooling air into each sheath by installing a halogen lamp surrounded by a transparent sheath with a gap as a light source in an inner culture tank capable of reflecting light uniformly (See, for example, Patent Document 2) that has been proposed.

実公平３−５３６８０号公報Japanese Utility Model Publication No. 3-53680 特開平１１−７５５９０号公報JP-A-11-75590

しかしながら、前述した特許文献１，２に記載された従来技術では、何れも培養液の内周面で光を反射できるように構成しているが、主として、光源側方に対する光の反射を目的としたものであり、例えば、ＨＩＤ光源のように、その先端より中心軸方向に発せられる高輝度の光線に関しては、光エネルギーの損失を十分に低減することができず、さらなる光エネルギーの損失を低減するための工夫が希求されていた。   However, the conventional techniques described in Patent Documents 1 and 2 described above are configured so that light can be reflected on the inner peripheral surface of the culture solution, but mainly for the purpose of reflecting light toward the side of the light source. For example, a high-intensity light beam emitted from the tip of the light source like the HID light source in the direction of the central axis cannot sufficiently reduce the loss of light energy, thereby further reducing the light energy loss. The idea to do it was demanded.

また、特許文献１に記載された従来技術では、光源からの放熱による培養液の温度上昇を抑えることができず、特許文献２に記載された従来技術では、シース内に冷却用の空気を導入できるように構成しているが、シース内は一端が閉じられた形状であって十分な通気性を得ることができないばかりでなく、複数のシース内に延ばす培養用ブロアから分岐させた空気導入機構の配設も面倒であるという構成上の問題があった。   Moreover, in the prior art described in Patent Document 1, an increase in the temperature of the culture solution due to heat radiation from the light source cannot be suppressed. In the conventional technique described in Patent Document 2, cooling air is introduced into the sheath. Although it is configured so that the inside of the sheath is closed at one end and sufficient ventilation cannot be obtained, an air introduction mechanism branched from a culture blower extending into a plurality of sheaths There is a problem in the construction that the arrangement of is also troublesome.

本発明は、以上のような従来技術の有する問題点に着目してなされたものであり、例えばＨＩＤ光源のように、その先端より中心軸方向に発せられる高輝度の光に関しても、光エネルギーの損失を極力抑えることが可能であり、しかも、光源からの放熱による培養液の温度上昇を、簡易な構成によりコストアップを招くことなく容易に抑えることができる培養装置を提供することを目的としている。   The present invention has been made by paying attention to the above-described problems of the prior art. For example, a high-intensity light emitted from the tip of the light source in the direction of the central axis, such as an HID light source, It is an object of the present invention to provide a culture apparatus that can suppress loss as much as possible and can easily suppress a temperature rise of a culture solution due to heat radiation from a light source without causing an increase in cost with a simple configuration. .

前述した目的を達成するための本発明の要旨とするところは、以下の各項の発明に存する。
［１］藻類等の光合成生物を培養液中で人工的に培養するための培養装置（１０）において、
中心側が上下に開口した中空部（２５）となる中空筒状に透光性素材より形成され、光合成生物を混ぜた培養液を収容する容器本体（２０）と、該容器本体（２０）の中空部（２５）内に配置され、容器本体（２０）内に向けて光を照射する光源（３０）と、を備え、
前記中空部（２５）内に配置された前記光源（３０）の上側および下側の少なくとも一方に、前記光源（３０）より照射された光を容器本体（２０）内に向けて反射する反射面（４１，５１）を有する反射体（４０，５０）を設けたことを特徴とする培養装置（１０）。 The gist of the present invention for achieving the object described above resides in the inventions of the following items.
[1] In a culture apparatus (10) for artificially culturing photosynthetic organisms such as algae in a culture solution,
A container body (20) which is formed of a light-transmitting material in a hollow cylindrical shape having a hollow portion (25) whose center side is opened up and down, and contains a culture solution mixed with photosynthetic organisms, and a hollow of the container body (20) A light source (30) disposed in the section (25) and irradiating light into the container body (20),
A reflective surface that reflects light emitted from the light source (30) toward the inside of the container body (20) on at least one of the upper side and the lower side of the light source (30) disposed in the hollow part (25). A culture apparatus (10) characterized in that a reflector (40, 50) having (41, 51) is provided.

［２］前記光源（３０）は、その中心軸方向にも光線を発する電球型であり、前記中空部（２５）内に、光源（３０）の中心軸が中空部（２５）の軸心と一致する状態に配置され、
前記反射体（４０，５０）は、前記光源（３０）よりその中心軸方向に発せられた光線を、全周方向かつ広角に前記容器本体（２０）の中空部（２５）に面した内側外周面（２６）に向けて反射させる略円錐状であって、その外周が前記反射面（４１，５１）を成すことを特徴とする［１］に記載の培養装置（１０）。 [2] The light source (30) is a light bulb type that emits light in the direction of its central axis, and the central axis of the light source (30) is in the hollow portion (25) and the axis of the hollow portion (25). Placed in a matching state,
The reflector (40, 50) is configured to allow the light emitted from the light source (30) in the central axis direction to face the hollow portion (25) of the container body (20) in the entire circumferential direction and wide angle. The culture device (10) according to [1], wherein the culture device (10) has a substantially conical shape reflecting toward the surface (26), and an outer periphery thereof forms the reflection surface (41, 51).

［３］前記容器本体（２０）の中空部（２５）内を上下方向に通気可能とし、該中空部（２５）内を強制的に通気させる送風手段（７０）を備えたことを特徴とする［１］または［２］に記載の培養装置（１０）。   [3] The container main body (20) is provided with a blowing means (70) that allows the inside of the hollow portion (25) to be ventilated in the vertical direction and forcibly vents the inside of the hollow portion (25). The culture apparatus (10) according to [1] or [2].

［４］前記容器本体（２０）の外側外周面（２２）を、前記光源（３０）より培養液中を透過して届いた光を再び培養液に向けて反射する反射面としたことを特徴とする［１］，［２］または［３］に記載の培養装置（１０）。   [4] The outer peripheral surface (22) of the container body (20) is a reflecting surface that reflects the light transmitted through the culture solution from the light source (30) toward the culture solution again. The culture apparatus (10) according to [1], [2] or [3].

［５］前記容器本体（２０）の中空部（２５）に面した内側外周面（２６）に沿って、透光性を有し熱線を遮断する熱反射シートを貼り付けたことを特徴とする［１］，［２］，［３］または［４］に記載の培養装置（１０）。   [5] A heat reflecting sheet that has translucency and blocks heat rays is attached along the inner peripheral surface (26) facing the hollow portion (25) of the container body (20). The culture apparatus (10) according to [1], [2], [3] or [4].

本発明は、次のように作用する。
前記［１］に記載の培養装置（１０）によれば、容器本体（２０）は中心側が上下に開口した中空部（２５）となる中空筒状（言い換えればドーナツ状）に形成されており、中空部（２５）内に配置した光源（３０）の発する光は、容器本体（２０）の中心側より放射状に照射される。 The present invention operates as follows.
According to the culture apparatus (10) described in [1] above, the container body (20) is formed in a hollow cylindrical shape (in other words, a donut shape) that forms a hollow portion (25) whose center side is opened up and down. Light emitted from the light source (30) disposed in the hollow portion (25) is irradiated radially from the center side of the container body (20).

ここで、光源（３０）より上下方向に発せられた光は、そのままでは中空部（２５）の上下の開口を通り抜けてしまい容器本体（２０）内に照射されることはないが、光源（３０）の上側および下側の少なくとも一方に反射体（４０，５０）を設け、この反射面（４１，５１）により光源（３０）より上下方向に発せられた光を容器本体（２０）内に向けて反射させることができるので、光エネルギーの損失を極力抑えることが可能となる。   Here, the light emitted in the vertical direction from the light source (30) passes through the upper and lower openings of the hollow portion (25) as it is and is not irradiated into the container body (20), but the light source (30 ) Are provided on at least one of the upper side and the lower side, and the light emitted from the light source (30) in the vertical direction by the reflecting surfaces (41, 51) is directed into the container body (20). Therefore, the loss of light energy can be suppressed as much as possible.

より具体的には、例えば前記［２］に記載したように、前記光源（３０）は、その中心軸方向にも光線を発する電球型として、前記中空部（２５）内に、光源（３０）の中心軸が中空部（２５）の軸心と一致する状態に配置させる。   More specifically, as described in [2] above, for example, the light source (30) is a light bulb that emits light in the direction of its central axis, and the light source (30) is disposed in the hollow portion (25). The central axis is arranged so as to coincide with the axial center of the hollow portion (25).

そして、前記反射体（４０，５０）は、光源（３０）よりその中心軸方向に発せられた光線を、全周方向かつ広角に容器本体（２０）の中空部（２５）に面した内側外周面（２６）に向けて反射させる略円錐状であって、その外周を反射面（４１，５１）とする。これにより、光源（３０）の中心軸方向へ発せられた光は、反射体（４０，５０）によって中心軸より全周方向へ広角に屈折反射し、内側外周面（２６）に対して小さな入射角にて入射し、無駄に反射することなく培養液中に到達することができる。   And the said reflector (40, 50) is the inner periphery which faced the hollow part (25) of the container main body (20) for the light beam emitted from the light source (30) to the center axis direction in the whole circumference direction and a wide angle. A substantially conical shape is reflected toward the surface (26), and its outer periphery is defined as a reflecting surface (41, 51). As a result, the light emitted in the direction of the central axis of the light source (30) is refracted and reflected by the reflectors (40, 50) at a wide angle from the central axis toward the entire circumference, and is incident on the inner outer peripheral surface (26) with a small incidence. It is incident at the corners and can reach the culture without wasteful reflection.

また、前記［３］に記載したように、容器本体（２０）の中空部（２５）内を上下方向に通気可能とし、該中空部（２５）内を強制的に通気させる送風手段（７０）を備えさせると良い。これにより、容器本体（２０）の中空筒状（ドーナツ状）という元々の形状をうまく利用して、中空部（２５）の上下開口を他部材により塞ぐことなく通気性を確保したままで、後は小型ファン等の送風手段（７０）で風を送るだけという簡易な構成により、中空部（２５）内に光源（３０）により熱せられた高温空気がこもることがなく、光源（３０）からの放熱による培養液の温度上昇を防ぐことができる。   Further, as described in [3] above, the air blowing means (70) which allows the inside of the hollow portion (25) of the container body (20) to be ventilated in the vertical direction and forcibly vents the inside of the hollow portion (25). It is good to prepare. Thus, the original shape of the container body (20) in the form of a hollow cylinder (doughnut shape) can be used effectively, and the upper and lower openings of the hollow portion (25) are not blocked by other members while maintaining air permeability. Has a simple configuration in which the air is simply sent by the air blowing means (70) such as a small fan, so that the high temperature air heated by the light source (30) does not accumulate in the hollow portion (25), and the light from the light source (30) An increase in the temperature of the culture solution due to heat dissipation can be prevented.

また、前記［４］に記載したように、容器本体（２０）の外側外周面（２２）を、光源（３０）より培養液中を透過して届いた光を再び培養液に向けて反射させる反射面にすると良い。これにより、光源（３０）から放射状に照射された光が、培養液中を通過して容器本体（２０）の外側外周面（２２）に到達すると、この外側外周面（２２）である反射面に反射されて再び培養液中に戻される。従って、培養液中における光の通過滞在時間が長くなり、より少ない光源（３０）でも光合成生物が利用するのに十分な光照射を得ることが可能となる。   Further, as described in the above [4], the outer peripheral surface (22) of the container main body (20) reflects the light transmitted through the culture medium from the light source (30) toward the culture medium again. It should be a reflective surface. Thereby, when the light irradiated radially from the light source (30) passes through the culture solution and reaches the outer peripheral surface (22) of the container body (20), the reflecting surface which is the outer peripheral surface (22). And returned to the culture medium again. Accordingly, the passage time of light in the culture solution becomes longer, and it becomes possible to obtain sufficient light irradiation for the photosynthetic organism to use even with a smaller light source (30).

さらにまた、前記［５］に記載したように、容器本体（２０）の内側外周面（２６）に沿って、透光性を有し熱線を遮断する熱反射シートを貼り付けるようにすれば、光合成生物に必要な光を遮ることなく、前記中空部（２５）での送風と相俟って、なおさら光源（３０）からの放熱による培養液の不必要な温度上昇を低減させることが可能となる。   Furthermore, as described in [5] above, if a heat reflecting sheet that has translucency and blocks heat rays is attached along the inner peripheral surface (26) of the container body (20), Without blocking the light necessary for the photosynthetic organism, it is possible to reduce unnecessary temperature rise of the culture solution due to heat radiation from the light source (30) in combination with the ventilation in the hollow portion (25). Become.

本発明に係る培養装置によれば、容器本体は、その中心側が上下に開口した中空部となる中空筒状に形成され、該容器本体の中空部内に光源が配置され、中空部内に配置された光源の上側および下側の少なくとも一方に、光源より照射された光を容器本体内に向けて反射する反射面を有する反射体を設けたから、光源より上下方向に発せられた光を、反射体により容器本体内に向けて反射させることができるので、光エネルギーの損失を極力抑えることが可能となる。   According to the culture apparatus according to the present invention, the container body is formed in a hollow cylindrical shape having a hollow portion whose center side is opened up and down, a light source is disposed in the hollow portion of the container body, and the container body is disposed in the hollow portion. Since at least one of the upper side and the lower side of the light source is provided with a reflector having a reflecting surface that reflects the light emitted from the light source toward the inside of the container body, the light emitted from the light source in the vertical direction is reflected by the reflector. Since it can reflect in the container main body, it becomes possible to suppress the loss of optical energy as much as possible.

また、前記光源を、その中心軸方向にも光線を発する電球型として、前記中空部内に、光源の中心軸が中空部の軸心と一致する状態に配置させ、前記反射体を、光源よりその中心軸方向に発せられた光線を、全周方向かつ広角に容器本体の中空部に面した内側外周面に向けて反射させる略円錐状であって、その外周を反射面とすれば、光源の中心軸方向へ発せられた光を、無駄にすることなく容器本体内へ有効に照射させることができる。   Further, the light source is a light bulb type that emits light also in the direction of its central axis, and the light source is disposed in the hollow portion so that the central axis of the light source coincides with the axis of the hollow portion, and the reflector is provided by the light source. If the light beam emitted in the central axis direction is reflected toward the inner outer peripheral surface facing the hollow portion of the container body in the entire circumferential direction and at a wide angle, and the outer periphery is a reflective surface, The light emitted in the direction of the central axis can be effectively irradiated into the container body without wasting it.

さらにまた、前記容器本体の中空部内を上下方向に通気可能とし、該中空部内を強制的に通気させる送風手段を備えさせることにより、容器本体の中空筒状（ドーナツ状）という元々の形状をうまく利用して、中空部の上下開口を他部材により塞ぐことなく通気性を確保したままで、後は小型ファン等の送風手段で風を送るだけという簡易な構成により、コストアップを招くことなく光源からの放熱による培養液の温度上昇を防ぐことができる。   Furthermore, the original shape of the container body in the form of a hollow cylinder (doughnut shape) can be successfully achieved by providing ventilation means that allows the inside of the hollow portion of the container body to be vertically ventilated and forcibly ventilates the inside of the hollow portion. Utilizing the light source without incurring an increase in cost with a simple structure in which the upper and lower openings of the hollow portion are kept closed without being blocked by other members and the air is then sent by a blowing means such as a small fan. It is possible to prevent the temperature of the culture medium from rising due to heat dissipation from the medium.

以下、図面に基づき本発明を代表する一実施の形態を説明する。
図１〜図５は、本発明の一実施の形態を示している。
本実施の形態に係る培養装置１０は、藻類等の光合成生物を培養液中で人工的に培養するための装置であり、以下に、屋内施設として、微細藻類の培養に用いる場合を例に説明する。ここで微細藻類は具体的には例えば、クロレラ、クラミドモナス、ボツリオコッカス等の緑藻類や、スピルリナ、アナベナ等のラン藻類が該当する。 Hereinafter, an embodiment representing the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of the present invention.
The culture apparatus 10 according to the present embodiment is an apparatus for artificially culturing photosynthetic organisms such as algae in a culture solution, and will be described below as an example of an indoor facility used for culturing microalgae. To do. Here, the microalgae specifically includes, for example, green algae such as Chlorella, Chlamydomonas, and Botriococcus, and cyanobacteria such as Spirulina and Anavena.

図１に示すように培養装置１０は、容器本体２０と、光源３０と、これら容器本体２０や光源３０等を設置する架台１１と、そのほかの関連機器群から構成されている。架台１１は、容器本体２０等を所定の向きや位置に設置できるフレーム材から組み立てられており、その下段部には、後述する各種の関連機器等を収納できるようになっている。   As shown in FIG. 1, the culture apparatus 10 includes a container main body 20, a light source 30, a gantry 11 on which the container main body 20, the light source 30 and the like are installed, and other related equipment groups. The gantry 11 is assembled from a frame material that allows the container body 20 and the like to be installed in a predetermined direction and position, and various related devices and the like that will be described later can be accommodated in the lower stage of the gantry 11.

容器本体２０は、微細藻類を混ぜた培養液を収容するものであり、中心側が上下に開口した中空部２５となる中空筒状（言い換えればドーナツ状）に形成されている。もちろん、容器本体２０の直径や高さの比、それに中空部２５の占める相対的な大きさは、図示した形状に限定されるものではない。容器本体２０全体は、基本的には次述する光源３０の光を透過させることができるように、無色透明のガラスやアクリル樹脂等の透光性素材より形成されている。   The container main body 20 contains a culture solution mixed with microalgae, and is formed in a hollow cylindrical shape (in other words, a donut shape) that becomes a hollow portion 25 whose center side is opened up and down. Of course, the ratio of the diameter and height of the container body 20 and the relative size occupied by the hollow portion 25 are not limited to the illustrated shapes. The entire container body 20 is basically formed of a light-transmitting material such as colorless and transparent glass or acrylic resin so that light from the light source 30 described below can be transmitted.

容器本体２０の上部開口は、中空部２５の上側開口２５ａを除いて円板状の蓋体２１で覆われており、容器本体２０は全体的に閉鎖系とすることができるようになっている。蓋体２１には、中空部２５の上側開口２５ａに合致する開口部２１ａ（図２参照）のほか、関連機器群のコードないし配管類を気密な状態で貫通させる挿入口（図示せず）が随所に設けられている。また、容器本体２０の底部２３には、容器本体２０内の培養液を外部に排出する排水口２４が設けられ、この排水口２４には、開閉可能な排水管２４ａが接続されている。   The upper opening of the container body 20 is covered with a disk-like lid 21 except for the upper opening 25a of the hollow part 25, so that the container body 20 can be entirely closed. . In addition to the opening 21a (see FIG. 2) matching the upper opening 25a of the hollow portion 25, the lid 21 has an insertion port (not shown) through which the cords or pipes of the related equipment group pass in an airtight state. It is provided everywhere. The bottom 23 of the container main body 20 is provided with a drain outlet 24 for discharging the culture medium in the container main body 20 to the outside, and a drain pipe 24 a that can be opened and closed is connected to the drain outlet 24.

培養装置１０の光源３０は、容器本体２０の中空部２５内に配置され、該容器本体２０の中心側より放射方向に向けて容器本体２０内に光を照射するものである。本実施の形態では、光源３０として、ＨＩＤランプのうちメタルハライドランプを採用している。メタルハライドランプは、高圧水銀ランプの一種であり、外球内に石英発光管が支持され、この石英発光管内には水銀の他に金属ハロゲン化物（メタルハライド）が添加されており、これら金属蒸気中の放電による発光を主に利用したランプである。   The light source 30 of the culture apparatus 10 is disposed in the hollow portion 25 of the container body 20 and irradiates light into the container body 20 from the center side of the container body 20 in the radial direction. In the present embodiment, a metal halide lamp is adopted as the light source 30 among the HID lamps. A metal halide lamp is a kind of high-pressure mercury lamp, and a quartz arc tube is supported in an outer bulb, and a metal halide (metal halide) is added to the quartz arc tube in addition to mercury. It is a lamp that mainly uses light emission by discharge.

このような光源３０であるメタルハライドランプは、その中心軸方向にも光線を発する電球型のタイプであり、図１に示すように中空部２５内に、光源３０の中心軸が中空部２５の軸心と一致する状態に配置される。また、中空部２５内に配置された光源３０の上側および下側には、光源３０より照射された光を容器本体２０内に向けて反射する反射体４０，５０が設けられている。   The metal halide lamp that is such a light source 30 is a light bulb type that emits light also in the direction of its central axis, and the central axis of the light source 30 is the axis of the hollow portion 25 in the hollow portion 25 as shown in FIG. Arranged in a state that matches the heart. Reflectors 40 and 50 that reflect light emitted from the light source 30 toward the inside of the container body 20 are provided above and below the light source 30 disposed in the hollow portion 25.

図２に示すように、光源３０であるメタルハライドランプのソケット３１は、反射体４０を成す光源取付板の下面側となる反射面４１に取り付けられている。反射体４０は、前記蓋体２１上に開口部２１ａを塞ぐように着脱自在に取り付けられるが、反射体４０には、中空部２５の上側開口２５ａが外気に連通するように、ソケット３１の周囲に並ぶ複数の通気孔４２，４２…が連設されている。   As shown in FIG. 2, the socket 31 of the metal halide lamp that is the light source 30 is attached to the reflection surface 41 that is the lower surface side of the light source attachment plate that forms the reflector 40. The reflector 40 is detachably mounted on the lid 21 so as to close the opening 21a. The reflector 40 is arranged around the socket 31 so that the upper opening 25a of the hollow portion 25 communicates with the outside air. A plurality of vent holes 42, 42.

反射体４０の反射面４１は平面状であり、反射体４０自体の素材がステンレス等の金属であれば、その表面を精密研磨すれば良く、あるいは鏡面加工された金属箔で覆ったり、光反射性コーティング材や、光の反射率が高い白色塗料等を塗布すること等が考えられる。また、反射体４０の上面側には、各通気孔４２に連通する排熱パイプ６０の下側フランジが接続され、排熱パイプ６０の上側フランジ上には、取付板７１を介して送風手段７０が配設されている。   If the reflecting surface 41 of the reflector 40 is flat and the material of the reflector 40 itself is a metal such as stainless steel, the surface may be precisely polished, covered with a mirror-finished metal foil, or reflected light It is conceivable to apply a conductive coating material or a white paint having a high light reflectance. Further, a lower flange of the exhaust heat pipe 60 communicating with each ventilation hole 42 is connected to the upper surface side of the reflector 40, and the blowing means 70 is attached to the upper flange of the exhaust heat pipe 60 via an attachment plate 71. Is arranged.

送風手段７０は、容器本体２０の中空部２５内を強制的に通気させるものであり、具体的には例えば、ファンを軸支した状態で駆動するモータユニットから成り、モータユニットの出力軸と同軸上に一体に固結される回転円板の外周縁側に沿って多数の翼片を列設して成るもの等が適している。中空部２５内は、上下方向に通気可能となっている。なお、送風手段７０の剥き出しとなる排気側には、指等の巻き込みを防止するための網目等のガード部材７２を装着すると良い。   The blower means 70 forcibly ventilates the hollow portion 25 of the container body 20, and specifically includes, for example, a motor unit that is driven in a state where the fan is pivotally supported, and is coaxial with the output shaft of the motor unit. A structure in which a large number of blade pieces are arranged along the outer peripheral edge side of a rotating disk that is integrally fixed together is suitable. The hollow portion 25 can be ventilated in the vertical direction. A guard member 72 such as a mesh for preventing a finger or the like from being caught is preferably attached to the exhaust side from which the blowing means 70 is exposed.

一方、容器本体２０の中空部２５における下側開口２５ｂ側の構造に関しては、図３に示すように、容器本体２０の底部２３を載置する架台１１の上面部１２には、下側開口２５ｂに合致する開口部１３が形成されている。また、上面部１２には、下敷反射板８０が装着され、この上に容器本体２０の底部２３が載置される。下敷反射板８０の上面側は、光源３０より照射された光を容器本体２０内に向けて反射する反射面として形成されている。下敷反射板８０における反射面は、具体的には例えば前記反射体４０の反射面４１と同様に構成すれば良い。   On the other hand, regarding the structure on the lower opening 25b side in the hollow portion 25 of the container body 20, as shown in FIG. 3, the lower opening 25b is formed in the upper surface portion 12 of the mount 11 on which the bottom 23 of the container body 20 is placed. Is formed. In addition, an underlay reflector 80 is mounted on the upper surface portion 12, and the bottom portion 23 of the container body 20 is placed thereon. The upper surface side of the underlay reflector 80 is formed as a reflection surface that reflects the light emitted from the light source 30 toward the inside of the container body 20. Specifically, the reflective surface of the underlay reflector 80 may be configured similarly to the reflective surface 41 of the reflector 40, for example.

また、下敷反射板８０の略中央には、中空部２５の下側開口２５ｂと上面部１２の開口部１３とを連通させる複数の通気孔８１，８１…が周方向に連設されており、さらに、光源３０から照射された光を容器本体２０内に向けて反射する反射体５０が設けられている。ここでの反射体５０は、前記反射体４０とは異なり、前記光源３０の先端よりその中心軸方向に発せられた光線を、全周方向かつ広角に容器本体２０の中空部２５に面した内側外周面２６に向けて反射させる略円錐状であって、その外周が反射面５１を成している。   In addition, a plurality of vent holes 81, 81 for communicating the lower opening 25b of the hollow portion 25 and the opening portion 13 of the upper surface portion 12 are continuously provided in the circumferential direction substantially at the center of the base reflector 80. Furthermore, a reflector 50 that reflects light emitted from the light source 30 toward the inside of the container body 20 is provided. The reflector 50 here is different from the reflector 40 in that the light emitted from the tip of the light source 30 in the direction of the central axis faces the hollow portion 25 of the container body 20 in the entire circumferential direction and wide angle. A substantially conical shape is reflected toward the outer peripheral surface 26, and the outer periphery forms a reflecting surface 51.

詳しく言えば、反射体５０は、円錐形の頂部を切り欠いて平らな面とした形状に作られており、通気孔８１を塞がないように、取付金具５２を介して下敷反射板８０の略中央に上向きに支持されている。反射体５０の外周である反射面５１の態様としては、具体的には例えば、反射体５０自体の素材がステンレス等の金属であれば、その表面を精密研磨すれば良く、あるいは鏡面加工された金属箔で覆ったり、光反射性コーティング材や、光の反射率が高い白色塗料等を塗布すること等が考えられる。もちろん、反射体５０の具体的な形状は、図４（ａ）に示すような円錐形の頂部を切り欠いた形状のみならず、同図（ｂ）に示すように、純粋な円錐形としても良い。   Specifically, the reflector 50 is made into a flat surface shape by cutting out the top of the conical shape, and the base reflector 80 is provided via the mounting bracket 52 so as not to block the vent hole 81. It is supported upward in the approximate center. Specifically, for example, if the material of the reflector 50 itself is a metal such as stainless steel, the surface of the reflector 50 may be precisely polished or mirror-finished. It is conceivable to cover with a metal foil, apply a light-reflective coating material, a white paint having a high light reflectance, or the like. Of course, the specific shape of the reflector 50 is not limited to a conical top shape as shown in FIG. 4 (a), but may be a pure conical shape as shown in FIG. 4 (b). good.

また、図５に示すように、容器本体２０内には、培養液中に空気を放出して対流現象を生じさせる散気管１１０と、培養液中で光合成により固定される二酸化炭素を補給するための補給管１２０の各先端口がそれぞれ配されている。散気管１１０の基端側は、フィルター１１１や流量計１１２を介して、エアーブロアー１１３に接続されている。補給管１２０の基端側は、レギュレータ１２１や流量計１２２を介して、ＣＯ２ボンベ１２３に接続されている。 In addition, as shown in FIG. 5, the container body 20 is supplied with an air diffuser 110 that releases air into the culture solution to cause a convection phenomenon, and carbon dioxide that is fixed by photosynthesis in the culture solution. Each of the front end ports of the supply pipe 120 is arranged. The proximal end side of the air diffuser 110 is connected to the air blower 113 via the filter 111 and the flow meter 112. The base end side of the supply pipe 120 is connected to a CO 2 cylinder 123 via a regulator 121 and a flow meter 122.

さらに、培養装置１０に対して、培養液を光合成生物の適した温度に維持するための温度制御システム１３０、培養液のｐＨを計測するｐＨ計１４１に接続されたｐＨセンサ１４０、培養装置１０に関する各種計測データ等を表示出力するための表示盤１５０等が関連機器として付設されている。図示しないが、培養液中のＣＯ２濃度を検出して所望濃度に調整できるＣＯ２濃度の制御システム、光源３０を調光点灯させて容器本体２０に対する照射光量を調整できる調光点灯装置等を設けるようにしても良い。 Further, the present invention relates to a temperature control system 130 for maintaining the culture solution at a suitable temperature for photosynthetic organisms with respect to the culture device 10, a pH sensor 140 connected to a pH meter 141 for measuring the pH of the culture solution, and the culture device 10. A display panel 150 and the like for displaying and outputting various measurement data and the like are attached as related devices. Although not shown, the control system of the CO 2 concentration can be adjusted to the desired concentration detected and the CO 2 concentration in the culture solution, the dimming lighting apparatus and the like capable of adjusting the radiation light amount with respect to the container body 20 by the light source 30 dimmer is turned You may make it provide.

温度制御システム１３０は、容器本体２０内に配置した冷却コイル１３１ａに冷却媒体を循環させる冷却装置１３１と、容器本体２０内に配され培養液を必要に応じて加温するヒータ１３２と、容器本体２０内に配され培養液の温度を測定する温度センサ１３４と、この温度センサ１３４で検出した培養液温度の実測値を予め定めた微細藻類の最適温度に調整すべく、前記冷却装置１３１および前記ヒータ１３２の稼働を調整する温度コントローラ１３５とから成る。また、冷却コイル１３１ａと冷却装置１３１の中の冷凍機を接続して、冷却コイル１３１ａに直接冷媒を流して冷却しても良い。なお、培養装置１０の関連設備として屋外には、培養液に用いる海水を供給するための海水貯留水槽１６０や、真水を供給するための井戸１７０等も設けられている。   The temperature control system 130 includes a cooling device 131 that circulates a cooling medium through a cooling coil 131a disposed in the container body 20, a heater 132 that is disposed in the container body 20 and heats the culture medium as necessary, and the container body. 20 and a temperature sensor 134 for measuring the temperature of the culture solution, and the cooling device 131 and the above-mentioned cooling device 131 and the above-described temperature adjustment unit for adjusting the measured value of the culture solution temperature detected by the temperature sensor 134 to a predetermined optimum temperature of microalgae. And a temperature controller 135 for adjusting the operation of the heater 132. Further, the cooling coil 131a and a refrigerator in the cooling device 131 may be connected to cool the cooling coil 131a by flowing a refrigerant directly. In addition, as related equipment of the culture apparatus 10, a seawater storage tank 160 for supplying seawater used for the culture solution, a well 170 for supplying fresh water, and the like are also provided outdoors.

次に、前記培養装置１０の作用を説明する。
図５に示すように、先ず培養装置１０に対して各種の関連機器をセットしてから、容器本体２０内に上端付近の位置まで、微細藻類（光合成生物）を混ぜた培養液を収容する。微細藻類は後から培養液に混入しても良い。 Next, the operation of the culture apparatus 10 will be described.
As shown in FIG. 5, first, various related devices are set in the culture apparatus 10, and then a culture solution in which microalgae (photosynthetic organisms) are mixed is accommodated in the container body 20 to a position near the upper end. The microalgae may be mixed into the culture solution later.

光源３０を点灯させると、容器本体２０内の培養液に対して、光源３０の発する光は容器本体２０の中心側より放射状に照射される。これにより、光源３０から発せられた光が、容器本体２０の内側外周面２６に対して小さな入射角で直接入射する割合が非常に高くなり、照射効率が高まるばかりでなく、内側外周面２６の表面で反射した光も再度容器本体２０内に入射する割合も高くなる。   When the light source 30 is turned on, the light emitted from the light source 30 is irradiated radially from the center side of the container body 20 with respect to the culture solution in the container body 20. Thereby, the ratio that the light emitted from the light source 30 is directly incident on the inner outer peripheral surface 26 of the container body 20 at a small incident angle becomes very high, and not only the irradiation efficiency is increased, but also the inner outer peripheral surface 26 The rate at which the light reflected from the surface also enters the container body 20 again increases.

光源３０より上下（中心軸）方向に発せられた光は、光源３０の上側と下側に設けてある反射体４０，５０の反射面４１，５１に反射して、容器本体２０側へ照射される。これにより、光源３０における光エネルギーの損失を極力抑えることができ、より少ない光源３０の出力でも、微細藻類が利用するのに十分な光照射を得ることが可能となる。   Light emitted in the vertical direction (center axis) from the light source 30 is reflected by the reflecting surfaces 41 and 51 of the reflectors 40 and 50 provided on the upper side and the lower side of the light source 30 and is irradiated to the container body 20 side. The Thereby, the loss of the light energy in the light source 30 can be suppressed as much as possible, and even with a smaller output of the light source 30, it is possible to obtain sufficient light irradiation for use by the microalgae.

特に、光源３０の先端と同軸上に対向する反射体５０は略円錐状であるので、光源３０の先端より中心軸方向へ発せられた光は、反射体５０の反射面５１によって中心軸より全周方向へ広角に屈折反射し、内側外周面２６に対して小さな入射角にて入射し、無駄に反射することなく培養液中に到達することができる。   In particular, since the reflector 50 coaxially opposed to the tip of the light source 30 has a substantially conical shape, the light emitted from the tip of the light source 30 in the central axis direction is totally reflected by the reflecting surface 51 of the reflector 50 from the center axis. It is refracted and reflected at a wide angle in the circumferential direction, is incident on the inner outer peripheral surface 26 at a small incident angle, and can reach the culture solution without being wasted.

ここで、容器本体２０の外側外周面２２も、光源３０より培養液中を透過して届いた光を再び培養液に向けて反射する反射面にすると良い。ここでの反射面は、具体的には例えば前記反射体４０の反射面４１と同様に構成すれば良い。これにより、光源３０から放射状に照射された光が、培養液中を通過して容器本体２０の外側外周面２２に到達すると、この外側外周面２２である反射面に反射されて再び培養液中に戻される。従って、培養液中における光の通過滞在時間が長くなり、培養液の全域に亘り微細藻類の光合成が促進される。   Here, the outer peripheral surface 22 of the container body 20 may also be a reflective surface that reflects the light transmitted through the culture solution from the light source 30 toward the culture solution again. Specifically, the reflecting surface here may be configured similarly to the reflecting surface 41 of the reflector 40, for example. Thereby, when the light irradiated radially from the light source 30 passes through the culture solution and reaches the outer peripheral surface 22 of the container body 20, it is reflected by the reflecting surface which is the outer peripheral surface 22 and again in the culture solution. Returned to Therefore, the passage time of light in the culture solution becomes longer, and photosynthesis of microalgae is promoted over the entire culture solution.

また、光源３０を配置している中空部２５内は、上下方向ともに通気可能であり、中空部２５の上側開口２５ａに排熱パイプ６０を介して連通接続してある送風手段７０の駆動によって、中空部２５内を強制的に通気させることができる。これにより、容器本体２０の中空筒状（ドーナツ状）という元々の形状をうまく利用して、中空部２５の上下開口を他部材により塞ぐことなく通気性を確保したままで、後は小型ファン等の送風手段７０で風を送るだけという簡易な構成により、中空部２５内に光源３０により熱せられた高温空気がこもることがなく、光源３０からの放熱による培養液の温度上昇を防ぐことができる。   Further, the inside of the hollow portion 25 in which the light source 30 is disposed can be ventilated both in the vertical direction, and by driving the blowing unit 70 connected to the upper opening 25a of the hollow portion 25 through the exhaust heat pipe 60, The inside of the hollow portion 25 can be forcibly ventilated. Thus, the original shape of the container body 20 in the form of a hollow cylinder (doughnut shape) is utilized well, and air permeability is ensured without blocking the upper and lower openings of the hollow portion 25 with other members, and thereafter a small fan or the like. The simple structure of only sending the air by the air blowing means 70 prevents the hot air heated by the light source 30 from being trapped in the hollow portion 25 and prevents the temperature of the culture medium from rising due to heat radiation from the light source 30. .

ここで、送風手段７０による送風のタイミングは、所定時間連続して行ってもよく、あるいは一定時間ごとに間欠的に行うように制御しても良い。さらには、培養液中の温度に応じて、後述する冷却装置１３１やヒータ１３２の稼働に連動させるように設定し、加温に利用しても良い。なお、光源３０の保守・点検を行う際には、図２において、光源３０等を組み付けた反射体４０を容器本体２０の蓋体２１から取り外せば良い。   Here, the timing of blowing by the blowing means 70 may be continuously performed for a predetermined time or may be controlled to be intermittently performed at fixed time intervals. Furthermore, according to the temperature in a culture solution, it sets so that it may operate | move with the operation | movement of the cooling device 131 mentioned later and the heater 132, and you may utilize for a heating. When performing maintenance / inspection of the light source 30, the reflector 40 assembled with the light source 30 or the like in FIG. 2 may be removed from the lid 21 of the container body 20.

さらに、容器本体２０の内側外周面２６に沿って、透光性を有し熱線（赤外線）を遮断する熱反射シートを貼り付けるようにすれば、微細藻類に必要な光を遮ることなく、中空部２５での送風と相俟って、なおさら光源３０からの放熱による培養液の不必要な温度上昇を低減させることが可能となる。   Furthermore, if a heat reflecting sheet that has translucency and blocks heat rays (infrared rays) is pasted along the inner peripheral surface 26 of the container body 20, it is hollow without blocking light necessary for microalgae. Combined with the air blow in the section 25, it is possible to further reduce an unnecessary temperature rise of the culture solution due to heat radiation from the light source 30.

微細藻類の光合成には、光のほか二酸化炭素が必要となるが、補給管１２０を通じてＣＯ２ボンベ１２３から供給される二酸化炭素を容器本体２０内に導入する。二酸化炭素の流入量の調整は、補給管１２０の途中にある流量計１２２で監視しながらレギュレータ１２１で行うことができる。また、ｐＨ計１４１に出力をもたせ、ｐＨコントローラにより、二酸化炭素の補給管１２０の途中に設ける電磁弁の開閉を制御し、二酸化炭素の流入量を調整しても良い。また、培養液を撹拌するための散気管１１０からの散気も相俟って、容器本体２０内の培養液は適度に循環し、二酸化炭素は培養液中に溶解しやすくなる。 Photosynthesis of microalgae requires carbon dioxide in addition to light, but carbon dioxide supplied from the CO 2 cylinder 123 is introduced into the container body 20 through the supply pipe 120. The adjustment of the inflow amount of carbon dioxide can be performed with the regulator 121 while monitoring with the flow meter 122 in the middle of the supply pipe 120. Further, the pH meter 141 may have an output, and the pH controller may control the opening and closing of a solenoid valve provided in the middle of the carbon dioxide supply pipe 120 to adjust the inflow amount of carbon dioxide. In addition, together with the aeration from the aeration tube 110 for stirring the culture solution, the culture solution in the container body 20 is circulated appropriately, and carbon dioxide is easily dissolved in the culture solution.

溶解した二酸化炭素は、光源３０からの光を受けた微細藻類による光合成作用によって固定化される。さらにまた、二酸化炭素や空気の散気によって、容器本体２０の内部は適度な陽圧に保たれるので、容器本体２０内部に対する外部からの空気流入を防止でき、コンタミネーションを防ぐことができる。   The dissolved carbon dioxide is immobilized by the photosynthetic action by microalgae receiving the light from the light source 30. Furthermore, since the inside of the container main body 20 is maintained at an appropriate positive pressure by the diffusion of carbon dioxide or air, it is possible to prevent the inflow of air from the outside to the inside of the container main body 20 and to prevent contamination.

培養液の温度に関しては、温度制御システム１３０によって微細藻類の最適温度に維持することができる。すなわち、冷却装置１３１により、容器本体２０内の培養液を間接的に冷却したり、ヒータ１３２により、容器本体２０内の培養液を直接加温することができ、温度センサ１３４で検出した実測値を元にして、温度コントローラ１３５で冷却装置１３１やヒータ１３２の稼働が調整される。容器本体２０内の培養水は前述したように循環しており、水温は偏りなく均一化する。なお、培養水のｐＨも、ｐＨセンサ１４０からの実測値に基づき適宜調整すると良い。   Regarding the temperature of the culture solution, the temperature control system 130 can maintain the optimum temperature of the microalgae. That is, the culture medium in the container body 20 can be indirectly cooled by the cooling device 131, or the culture medium in the container body 20 can be directly heated by the heater 132, and the actual value detected by the temperature sensor 134. Based on the above, the operation of the cooling device 131 and the heater 132 is adjusted by the temperature controller 135. The culture water in the container body 20 is circulated as described above, and the water temperature is made uniform without unevenness. The pH of the culture water may be adjusted as appropriate based on the actual measurement value from the pH sensor 140.

以上、本発明の実施の形態に係る培養装置１０を図面によって説明してきたが、具体的な構成は前述した実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。例えば、前記実施の形態では、光源３０としてメタルハライドランプを採用したが、光源の種類はこれに限られるものではなく、他に、水銀ランプや高圧ナトリウムランプ等を採用しても良い。また、光源の数も１つに限定されるものではない。   As described above, the culture apparatus 10 according to the embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to the above-described embodiment, and modifications and additions within a scope not departing from the gist of the present invention. Is included in the present invention. For example, in the embodiment, a metal halide lamp is used as the light source 30, but the type of the light source is not limited to this, and a mercury lamp, a high-pressure sodium lamp, or the like may be used. Further, the number of light sources is not limited to one.

また、前記実施の形態では、光源３０の上側に配した反射体４０と、光源３０の下側に配した反射体５０とを両方とも備えるように構成したが、他の実施の形態として、例えば、反射体４０のみ備えるもの、あるいは反射体５０のみ備えるもの、として構成しても良い。また、反射体４０は平板状に形成し、反射体５０を略円錐状に形成したが、これらを逆の態様にしたり、あるいは両方とも平板状にしたり、両方とも略円錐状に形成しても良い。   Moreover, in the said embodiment, although it comprised so that both the reflector 40 distribute | arranged to the upper side of the light source 30 and the reflector 50 distribute | arranged to the lower side of the light source 30, as another embodiment, for example, Alternatively, a configuration including only the reflector 40 or a configuration including only the reflector 50 may be used. Further, the reflector 40 is formed in a flat plate shape, and the reflector 50 is formed in a substantially conical shape. However, these may be reversed, or both may be formed in a flat plate shape, or both may be formed in a substantially conical shape. good.

さらにまた、前記実施の形態では、送風手段７０の設置場所として中空部２５の上側開口２５ａを選んだが、中空部２５内における光源３０の光照射を遮らない位置であれば特に限定されるものではなく、中空部２５の下側開口２５ｂより下側等に設けるようにしても良い。また、図５に示すシステムに関しては、１つの関連機器に対して本培養装置１０を複数並列に接続するように構成しても良いことは言うまでもない。   Furthermore, in the above-described embodiment, the upper opening 25a of the hollow portion 25 is selected as the installation location of the blowing means 70. However, the position is not particularly limited as long as it does not block the light irradiation of the light source 30 in the hollow portion 25. Alternatively, it may be provided below the lower opening 25b of the hollow portion 25 or the like. Further, it is needless to say that the system shown in FIG. 5 may be configured to connect a plurality of culture apparatuses 10 in parallel to one related device.

本発明の一実施の形態に係る培養装置を概略的に示す正面図である。It is a front view which shows roughly the culture apparatus which concerns on one embodiment of this invention. 本発明の一実施の形態に係る培養装置の架台等を分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the mount frame etc. of the culture apparatus which concerns on one embodiment of this invention. 本発明の一実施の形態に係る培養装置の容器本体等を分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the container main body etc. of the culture apparatus which concerns on one embodiment of this invention. 本発明の一実施の形態に係る培養装置の反射体の一例を拡大して示す斜視図である。It is a perspective view which expands and shows an example of the reflector of the culture apparatus which concerns on one embodiment of this invention. 本発明の一実施の形態に係る培養装置を含むシステム構成を示す説明図である。It is explanatory drawing which shows the system configuration | structure containing the culture apparatus which concerns on one embodiment of this invention.

符号の説明Explanation of symbols

１０…培養装置
１１…架台
１２…上面部
１３…開口部
２０…容器本体
２１…蓋体
２１ａ…開口部
２２…外側外周面
２３…底部
２４…排水口
２４ａ…排水管
２５…中空部
２５ａ…上側開口
２５ｂ…下側開口
２６…内側外周面
３０…光源
３１…ソケット
４０…反射体
４１…反射面
４２…通気孔
５０…反射体
５１…反射面
５２…取付金具
６０…排熱パイプ
７０…送風手段
７１…取付板
７２…ガード部材
８０…下敷反射板
８１…通気孔
１１０…散気管
１１１…フィルター
１１２…流量計
１１３…エアーブロアー
１２０…補給管
１２１…レギュレータ
１２２…流量計
１２３…ＣＯ２ボンベ
１３０…温度制御システム
１３１…冷却装置
１３１ａ…冷却コイル
１３２…ヒータ
１３４…温度センサ
１３５…温度コントローラ
１４０…ｐＨセンサ
１４１…ｐＨ計
１５０…表示盤
１６０…海水貯留水槽
１７０…井戸 DESCRIPTION OF SYMBOLS 10 ... Culture apparatus 11 ... Base 12 ... Upper surface part 13 ... Opening part 20 ... Container main body 21 ... Lid body 21a ... Opening part 22 ... Outer outer peripheral surface 23 ... Bottom part 24 ... Drain port 24a ... Drain pipe 25 ... Hollow part 25a ... Upper side Opening 25b ... Lower opening 26 ... Inner outer peripheral surface 30 ... Light source 31 ... Socket 40 ... Reflector 41 ... Reflecting surface 42 ... Air vent 50 ... Reflector 51 ... Reflecting surface 52 ... Mounting bracket 60 ... Waste heat pipe 70 ... Air blowing means 71 ... mounting plate 72 ... guard member 80 ... underlay reflector 81 ... vent hole 110 ... aeration tube 111 ... filter 112 ... flow meter 113 ... air blower 120 ... supply tube 121 ... regulator 122 ... flow meter 123 ... CO 2 cylinder 130 ... Temperature control system 131 ... cooling device 131a ... cooling coil 132 ... heater 134 ... temperature sensor 135 ... temperature controller 1 0 ... pH sensor 141 ... pH meter 150 ... display panel 160 ... seawater reservoir water tank 170 ... Well

Claims (5)

藻類等の光合成生物を培養液中で人工的に培養するための培養装置において、
中心側が上下に開口した中空部となる中空筒状に透光性素材より形成され、光合成生物を混ぜた培養液を収容する容器本体と、該容器本体の中空部内に配置され、容器本体内に向けて光を照射する光源と、を備え、
前記中空部内に配置された前記光源の上側および下側の少なくとも一方に、前記光源より照射された光を容器本体内に向けて反射する反射面を有する反射体を設けたことを特徴とする培養装置。 In a culture apparatus for artificially culturing photosynthetic organisms such as algae in a culture solution,
A container body that is formed of a light-transmitting material in a hollow cylindrical shape with a hollow portion having a central opening at the center side and that contains a culture solution mixed with photosynthetic organisms, and is disposed in the hollow portion of the container body. A light source that emits light toward
A culture characterized in that a reflector having a reflective surface for reflecting light emitted from the light source toward the inside of the container body is provided on at least one of the upper side and the lower side of the light source arranged in the hollow portion. apparatus. 前記光源は、その中心軸方向にも光線を発する電球型であり、前記中空部内に、光源の中心軸が中空部の軸心と一致する状態に配置され、
前記反射体は、前記光源よりその中心軸方向に発せられた光線を、全周方向かつ広角に前記容器本体の中空部に面した内側外周面に向けて反射させる略円錐状であって、その外周が前記反射面を成すことを特徴とする請求項１に記載の培養装置。 The light source is a light bulb type that emits light also in the direction of its central axis, and is arranged in the hollow portion so that the central axis of the light source coincides with the axial center of the hollow portion,
The reflector has a substantially conical shape that reflects light emitted from the light source in the central axis direction toward the inner peripheral surface facing the hollow portion of the container body in the entire circumferential direction and at a wide angle. The culture apparatus according to claim 1, wherein an outer periphery forms the reflective surface. 前記容器本体の中空部内を上下方向に通気可能とし、該中空部内を強制的に通気させる送風手段を備えたことを特徴とする請求項１または２に記載の培養装置。   The culture apparatus according to claim 1 or 2, further comprising an air blowing means that allows the inside of the hollow portion of the container body to be vertically ventilated and forcibly vents the inside of the hollow portion. 前記容器本体の外側外周面を、前記光源より培養液中を透過して届いた光を再び培養液に向けて反射する反射面としたことを特徴とする請求項１，２または３に記載の培養装置。   The outer peripheral surface of the container body is a reflective surface that reflects light that has passed through the culture medium from the light source and reaches the culture liquid again. Culture device. 前記容器本体の中空部に面した内側外周面に沿って、透光性を有し熱線を遮断する熱反射シートを貼り付けたことを特徴とする請求項１，２，３または４に記載の培養装置。   The heat reflecting sheet which has translucency and interrupts | blocks a heat ray was affixed along the inner peripheral surface which faced the hollow part of the said container main body, The Claim 1, 2, 3, or 4 characterized by the above-mentioned. Culture device.
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JP2020058241A (en) * 2018-10-05 2020-04-16 三菱重工機械システム株式会社 Light radiation device and algae cultivation device

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