【０００１】
【産業上の利用分野】
本発明は接ぎ木後の接ぎ苗を活着促進させて順化させる接ぎ苗順化装置に関し、特に順化装置内の接ぎ苗活着促進に最適な環境を保つための空調装置を備えた接ぎ苗順化装置に関する。
【０００２】
【従来の技術】
接ぎ苗順化装置内はその内部に収納された接ぎ苗の活着を促進させるために、順化装置内の空間に冷却空気、加熱空気、加湿空気をそれぞれ供給して、順化装置内の雰囲気温度と湿度を調節することが行われている。加湿空気は加湿器から水滴を霧状にして噴霧して、これを前記冷却空気および／または加熱空気により加湿空気とするものである。
【０００３】
【発明が解決しようとする課題】
しかし、従来の接ぎ苗の順化装置には加湿空気を冷暖房空気と共に接ぎ苗の収納されている順化室内に供給するので、冷暖房空気に加湿空気が同伴され、室内での湿度ムラが生じ易くなる。また、冷暖房空気により加湿空気が除湿されて接ぎ苗の順化に必要な高い湿度が維持できないことがあった。そこで、本発明の目的は順化室内での湿度ムラがなく、冷暖房空気により加湿空気が除湿されることなく、高湿度を維持できる順化装置を提供することである。また、本発明の目的は接ぎ苗の活着を促進させることができる順化装置を提供することである。
【０００４】
【課題を解決するための手段】
本発明の上記目的は次の構成によって達成される。すなわち、接ぎ木後の接ぎ苗を収納する内室１９を備え、該内室１９内の温度を制御するための冷却手段と加熱手段とを備えた接ぎ苗順化装置において、前記内室１９を囲う壁を外壁１と内壁２による二重壁で構成し、前記冷却手段と前記加熱手段とにより冷却又は加熱された空気を前記外壁１と前記内壁２の間に形成した空間内をファン１３によって循環させる構成とし、前記内壁２の内側に形成される内室１９内に、加湿器１６と、該加湿器１６による加湿用の液滴を供給する配管１８と、該配管１８によって供給された加湿用の液滴を微細液滴で噴霧するスプレノズル１７を設けるとともに、該内室１９を、接ぎ苗を植え付けたプラグトレー５を載置する収納棚３を上下複数段設けた活着促進台車３５を室内に収容可能に構成し、前記スプレノズル１７を、内壁２の内側の側壁にあって互いに対向する両内壁面の近くで且つ天井付近と上下中間部付近とに配置し、これらのスプレノズル１７に加湿用の液滴を供給する配管１８を内壁２の内壁面に沿って配置したことを特徴とする接ぎ苗順化装置である。
【０００５】
【作用】
本発明の接ぎ苗順化装置は、接ぎ苗を植え付けたプラグトレー５を上下複数段に載置した活着促進台車３５を内室１９内に収容し、内室１９内の温度が冷却手段と加熱手段とによって制御されて、接ぎ苗の活着促進が行われる。内室１９を囲う壁は外壁１と内壁２による二重壁で構成され、外壁１と内壁２との間の空間にのみ冷暖房空気が循環し、接ぎ苗が収納された内壁２の内側の内室１９内には冷暖房空気が循環することはない。この状態で、内室１９内では、加湿器１６による加湿用の液滴が配管１８を介してスプレノズル１７から噴霧する。従って、内室１９内の加湿された空気は冷暖房空気により除湿される恐れはなく、接ぎ苗の活着に必要な高い湿度が維持できる。また、内室１９内に冷暖房空気流が入り込まず、更に、スプレノズル１７を、内壁２の内側の側壁にあって互いに対向する両内壁面の近くで且つ天井付近と上下中間部付近とに配置し、これらのスプレノズル１７に加湿用の液滴を供給する配管１８を内壁２の内壁面に沿って配置されて、内室１９内全体に噴霧液滴がまんべん無く供給されるので、局所的に湿度差が生じることもなくなる。こうして内室１９内を接ぎ木後の接ぎ苗を活着促進させるための好適な環境に保つことができる。
【０００６】
【実施例】
本発明の一実施例を図面と共に説明する。本実施例の順化装置の正面側断面視図を図１に、横断面視図を図２に、側面側断面視図を図３にそれぞれ示す。本実施例の順化装置の構造的特徴は断熱性パネルで構成した順化装置の外壁１の内部に熱伝導性の高い材質で構成した内壁２を設け、外壁１と内壁２との間に作られた空間に冷暖房空気を循環させることである。そして、内壁２内には複数段の収納棚３を設け、各収納棚３上に接ぎ苗を植え付けたプラグトレー５が配置される。収納棚３の段数は特に限定がなく図示の例では４段配置されたものである。収納棚３は板を格子状に配置して、隣接する板間は隙間が設けられているので、収納棚３の上下方向には空気が流通可能であり、外壁１と内壁２との間に作られた空間に配置される循環ファン（庫内ファン１３）の作動により内壁２内全体の雰囲気を同一条件とすることができる。前述したように、外壁１と内壁２との間には冷暖房空気の循環風路があり、冷暖房空気は熱伝導性の高い材質で構成された内壁２を介して接ぎ苗収納室内の温度制御が行われる。
【０００７】
冷暖房空気は順化装置の頂部外壁１に設置される冷凍機６と加熱ヒータ７により形成される。冷凍機６はコンデンサ９、コンデンサ９用庫外ファン１０、コンプレッサー１１、蒸発器１２および庫内ファン１３とからなり、庫内ファン１３と蒸発器１２は外壁１と内壁２の間の空間に配置される。また、加熱ヒータ７も前記庫内ファン１３と蒸発器１２近傍の外壁１と内壁２の間の空間に配置される。そして庫内ファン１３の作動で外壁１と内壁２の間の空間内の空気が循環する。このとき、冷凍機６の蒸発器１２が作動中であると冷却空気が得られ、加熱ヒータ７が作動中であると加熱空気が得られる。収納棚３上部にはプラグトレー５の接ぎ苗を照明するための人工照明灯１５（１０００Ｌｕｘ以上）が設けられる。 また、図４に示すように、順化装置の二重壁構造の一側壁には内壁２内部、すなわち内室１９より外壁１外部に連通する吸気口２０を設け、該側壁と対向する順化装置側壁には内壁２内部より外壁１外部に連通する排気口２１、該排気口２１内に排気ファン２２を設ける。また、吸気口２０の吸い込み口にはダンパー２３を設ける。そして、内壁２内部の適宜箇所、望ましくは中央空間にＣＯ２濃度センサー２５および温度センサー２６を設ける。
【０００８】
また、本実施例では図１または図３に示すように二重側壁構造の側壁を持つ順化装置の内室１９の底部に冷暖房用空気吹き出し方向と平行にスノコ状の架台３２を設けた構成とすることもできる。図５に順化装置底部の部分拡大図を示すように、内室１９の底部を通過する風路をスノコ状の架台３２と順化装置の外壁１とで構成する。また、図６に示すように内壁２より内室１９内に熱伝導ができるように底部内壁２に冷暖房空気流が接触できるようにスノコ状架台３２の天板３３は間隔をあけておくことが好ましい。こうして、スノコ状架台３２は内室１９の支持架台機能と、内室１９下部風路を構成する機能を達成することができ、温度調節空気の流れが平均化して、内室１９内の温度ムラが減少する。また、本実施例では内室１９下部にも冷暖房空気の風路を設けたため、内室１９を構成する内壁２の六側壁面より熱伝導ができ、温度コントロールの応答が迅速に行える効果もある。
【０００９】
また、接ぎ苗の順化装置は接ぎ苗を植え付けたプラグトレー５を載置した収納棚３を多数段載せることができる活着促進台車３５（図３参照）を内室１９内に収めて、順化処理を行うが、本実施例の活着促進台車３５では図３のＡ部の拡大図である図７（図７（ａ）は平面図、図７（ｂ）は側面側断面視図）に示すように接ぎ苗を植え付けたプラグトレー５を載せる収納棚３の端面近く（好ましくは活着促進台車３５の収納棚３の前面もしくは全周）で前記台車３５の枠３６の隣接位置などに凹状の溝３７を設けておくと、接ぎ苗を植え付けたプラグトレー５より灌水した水がにじみ出ても前記凹状の溝３７から下部に設けた漏斗３９、シュートホース４０などで床まで汚水を導くことがてきる。こうして、従来技術のように、上段の収納棚３より汚れた水が落下し、下段の収納棚３上の接ぎ苗に飛散することにより接ぎ苗の生育に悪影響を与えることあるいは作業環境を悪くする問題点が解消される。
【００１０】
また、最上段の収納棚３部分には湿度制御（９０％以上）のための加湿器１６（図１参照）が配置され、加湿器１６から適宜の収納棚３に向けて噴霧水を微細液滴で噴霧できるようにスプレノズル１７を端部に備えた配管１８が配置されている。本実施例の順化装置は３坪程度の広さの内室１９の面積を有するものなので、４系統以上の液滴噴霧用の配管１８を用いて、その先端のスプレノズル１７から微細液滴を適宜の内室１９内の空間に分配して噴霧する構成を採用している。そのため、内室１９内全体に噴霧液滴をまんべん無く供給することができ、内室１９内での局所加湿が無く、湿度ムラも少なくなる。また、加湿器１６は液滴粒径が細かい超音波式のものを用いる。しかしこれに限定されず、気化式、蒸気式、遠心式などのいかなる種類の加湿器１６を用いても良い。
【００１１】
本実施例によると、冷暖房空気の循環する空間（外壁１と内壁２との間の空間）と加湿空間（内室１９）とが隔壁により隔てられているため、加湿空間が除湿されず高湿度維持が可能となり、接ぎ苗の活着率が高まる。それだけでなく、上記構成により内室１９内は過大な風速の冷暖房空気流にさらされることなく、局所加湿にならず内室１９内の湿度ムラを少なくすることもできる。また、内室１９内全体に配管１８を介して加湿用の液滴が供給されるので、湿度ムラも少ない。なお、本実施例では加湿器１６本体は、内室１９内部に設置してあるが、順化装置の天井外壁１の上部に設置して内室１９に通じるダクトを介して内室１９内に微細液滴を供給する構成にしても良い。
【００１２】
また、図１〜図３に示すように、加湿用微細液滴の配管の設置された対向する一対の側壁面と直交する両側面に微風ファン（拡散ファン）４２を設けても良い。この場合は微風ファン４２による風で微細液滴の蒸発促進と内室１９内の湿度の均一性が向上する。また、微風ファン４２による軽い適度な送風は植物の蒸散を図り、その成育促進につながる。本実施例での微風ファン４２は一定のインターバルをもって、かつ、微風ファン４２ａと微風ファン４２ｂは図８に示すように交互に運転させる方法を採用してもよい。この場合は加湿用の配管１８からの微細液滴の噴霧による分散と微風ファン４２ａ、４２ｂの微細液滴の拡散による相乗効果で湿度のムラの解消効果がより高まる。このように、本実施例で微風ファン４２を用いて軽い適度な送風を行うことで、従来冷暖房用の循環ファンで接ぎ苗の収納された内室１９内に拡散させていた風は風速が大きすぎて、接ぎ苗をしおらす原因になっていた問題点が解消できた。
【００１３】
また、図９に本実施例の順化装置の内室１９内の雰囲気温度制御回路を示す。冷却用スイッチ（ＳＳ１）および加熱用スイッチ（ＳＳ２）を入れると、温度調節器３０は温度センサー２６により測定される内室１９内の雰囲気温度が設定温度（２８℃程度）より高い場合には、Ｘ１リレーをＯＮさせ、また、コンプレッサー開閉器（５２Ｃ）をＯＮさせ、その結果冷凍機６が作動開始し、冷却運転が開始する。また、内室１９内の雰囲気温度が設定値に低下すると、Ｘ１リレーがＯＦＦとなり冷凍機６が停止する。もし、内室１９内の雰囲気温度が設定温度より低ければ加熱ヒータ開閉器（ＭＣ）がＯＮし、加熱ヒータ７が作動し、内室１９内が加熱される。このように１つの温度調節器３０により冷凍機６の運転と加熱ヒータ７の通電を制御し、温度制御を行うことができる。なお、冷凍機６の運転と加熱ヒータ７の作動は同時に行われないようにインターロックされる。
【００１４】
こうして、１つの温度調節器３０によって加熱ヒータ制御と蒸発器制御を同時に行い、適正温度を効率的に保持できる。また、冷凍機６の庫内ファン１３を蒸発器１２の冷却用に用いるのみならず、加熱ヒータ７の暖房用ファンとしても用いることができるので、設備費用のコストダウンが図れる。なお、図９において、ＴＭは除霜タイマ、ＲＹ１、ＲＹ２はリレー、５１Ｃはサーマルリレー、ＣＭはコンプレッサー、Ｘ１はリレー、ＳＶは電磁弁、ＦＭＣはコンデンサ９用の庫外ファン１０のモーター、ＦＭＥは蒸発器１２用の庫内ファン１３のモーターを表す。
【００１５】
本実施例では、上記したように冷凍機６と庫内ファン１３または加熱ヒータ７と庫内ファン１３を作動させると接ぎ苗活着に最適な温度（２８℃程度）の温度調節用の冷暖房用空気が形成され、この冷暖房空気を外壁１と内壁２からなる二重壁間の空間に循環させると、熱伝導率の高い内壁２を介して、内室１９内の雰囲気が冷却または加熱制御され、内室１９内に収納されている接ぎ苗を適切な雰囲気温度で生育させることができる。しかも、この冷暖房空気は直接内壁２内、すなわち内室１９を流れるものではないので、冷暖房空気の風速により、接ぎ苗のしおれ発生がなく、活着が良好となる。これは従来の順化装置が温度調節用空気を接ぎ苗を収納した順化室内に直接循環させていたため、加湿空気にしても接ぎ苗をしおらす原因となり、活着率が低かったことと対照的である。本実施例の接ぎ苗の活着率は９５〜９８％であった。
【００１６】
また、従来の順化装置は９０％以上の高湿度のもとで冷凍機６を運転していたので、冷凍機６の蒸発器１２に霜が付着し易く運転効率が悪かったが、本実施例では冷凍機６は内室１９に直接臨んでいないので、内室１９の高湿度雰囲気により、冷凍機６に霜が付くことも無く、その冷却効率が高くなり、省エネルギーとなる。また、冷凍機６を天井上部の外壁１に設けているので、庫内容積を有効に利用できる。さらに、加熱用ヒータ７の暖房用ファンとして冷凍機６の蒸発器１２用の庫内ファン１３を利用するので、設置スペースの節約、および、効率的運転が可能となる。
【００１７】
本実施例の順化装置では、接ぎ木後、接ぎ苗の活着促進のため好適環境を保つため、前記外壁１と内壁２の二重構造からなる空間を設けた順化装置側面の一面に内室１９より外壁１に連通する吸気口２０と、該側面と対向する側面の外壁１と内壁２を貫通する排気口２１と該排気口２１内に排気ファン２２を設けているので、接ぎ苗を収納する内室１９に新鮮空気を取り入れることができる。また、内室１９に設けたＣＯ２濃度センサー２５のＣＯ２濃度測定値とその設定値との対比により排気ファン２２を運転してＣＯ２濃度を一定以上に保ち、かつ必要なら新鮮な空気を内室１９へ取り入れることができ、ＣＯ２濃度も低くならず接ぎ苗の炭酸同化作用も旺盛となり、接ぎ苗の生育も良好となる。また、適時内室１９内の空気を換気することができ、カビの発生などを防止することもできる。従来の順化装置では接ぎ苗の配置されている室内が低ＣＯ２濃度になったり、また、高温多湿のためウドンコ病が発生しやすい環境になり易く、接ぎ苗の生育不調および病気が発生しがちであったが、本実施例の装置ではそのような不具合は解消された。
【００１８】
【発明の効果】
本発明によれば、接ぎ苗を上下複数段に載置した活着促進台車３５を収容した内室１９を囲う壁が外壁１と内壁２による二重壁で構成され、冷暖房空気は外壁１と内壁２との間の空間のみを循環し、内壁２の内側に形成される内室１９内は冷暖房空気が入り込まない状態で加湿されるため、接ぎ苗を収納する内室１９内は、冷暖房空気によって除湿されず高湿度状態を維持できて接ぎ苗の活着率が高まり、また、内室１９内に収納された接ぎ苗は冷暖房空気流を受けないのでしおれ発生がない。しかも、内室１９内に冷暖房空気流が入り込まず、更に、スプレノズル１７を、内壁２の内側の側壁にあって互いに対向する両内壁面の近くで且つ天井付近と上下中間部付近とに配置し、これらのスプレノズル１７に加湿用の液滴を供給する配管１８を内壁２の内壁面に沿って配置されて、内室１９内全体に噴霧液滴がまんべん無く供給されるので、局所加湿にならず内室１９内の湿度ムラが少なくなる。
【図面の簡単な説明】
【図１】本発明の一実施例の接ぎ苗順化装置の正面側断面視図。
【図２】図１の接ぎ苗順化装置の横断面視図。
【図３】図１の接ぎ苗順化装置の側面側断面視図。
【図４】図１の接ぎ苗順化装置の側壁面の吸気口、排気口部分の側面側断面視図。
【図５】図１の接ぎ苗順化装置の下部コーナー部の拡大断面図。
【図６】図１の接ぎ苗順化装置のスノコ状架台部分の斜視図。
【図７】図１の接ぎ苗順化装置のプラグトレー５を載せた収納棚３の端面近くの拡大平面図と拡大側面側断面視図。
【図８】図１の接ぎ苗順化装置の一対の微風ファンの運転タイミングチャートの図。
【図９】本発明の一実施例の接ぎ苗順化装置の内室内の雰囲気温度制御回路図。
【符号の説明】
１…外壁、２…内壁、３…収納棚、５…プラグトレー、６…冷凍機、７…加熱ヒータ、９…コンデンサ、１０…庫外ファン、１１…コンプレッサー、１２…蒸発器、１３…庫内ファン、１５…人工照明灯、１６…加湿器、１７…スプレノズル、１８…配管、１９…内室、２０…吸気口、２１…排気口、２２…排気ファン、２３…ダンパー、２５…ＣＯ２濃度センサー、２６…温度センサー、３０…温度調節器、３２…スノコ状架台、３３…スノコ状架台の天板、３５…活着促進台車、３６…活着促進台車枠、３７…凹状の溝、３９…漏斗、４０…シュートホース、４２…微風ファン（拡散ファン）[0001]
[Industrial applications]
The present invention relates to a grafted seedling acclimation apparatus for accelerating and acclimating grafted seedlings after grafting, and more particularly to a grafted seedling acclimation apparatus equipped with an air conditioner for maintaining an optimal environment for promoting grafted seedling activation in the acclimation apparatus. Equipment related.
[0002]
[Prior art]
In order to promote the survival of the grafted seedlings accommodated therein, cooling air, heating air, and humidified air are supplied to the space within the acclimatization device, and the atmosphere in the acclimation device is accelerated. Adjustment of temperature and humidity is performed. The humidified air is formed by atomizing water droplets from a humidifier and spraying the mist, and the humidified air is humidified by the cooling air and / or the heated air.
[0003]
[Problems to be solved by the invention]
However, since the humidified air is supplied to the conventional acclimating apparatus for grafted seedlings together with the cooling and heating air into the acclimation room in which the grafted seedlings are stored, the humidified air is accompanied by the cooling and heating air, and the humidity unevenness in the room is easily generated. Become. In addition, the humidified air is dehumidified by the cooling / heating air, and the high humidity required for acclimatization of the grafted seedlings may not be maintained. Therefore, an object of the present invention is to provide an acclimatization apparatus capable of maintaining high humidity without causing humidity unevenness in the acclimatization chamber and without dehumidifying humidified air by cooling and heating air. Another object of the present invention is to provide an acclimatization device that can promote the survival of grafted seedlings.
[0004]
[Means for Solving the Problems]
The above object of the present invention is achieved by the following configuration. That is, in the grafted seedling acclimation apparatus provided with an inner chamber 19 for storing grafted seedlings after grafting, and a cooling means and a heating means for controlling the temperature in the inner chamber 19, the inner chamber 19 is enclosed. The wall is constituted by a double wall composed of an outer wall 1 and an inner wall 2, and air cooled or heated by the cooling means and the heating means is circulated by a fan 13 in a space formed between the outer wall 1 and the inner wall 2. A humidifier 16, a pipe 18 for supplying droplets for humidification by the humidifier 16, and a humidifier supplied by the pipe 18 are provided in an inner chamber 19 formed inside the inner wall 2. A spray nozzle 17 for spraying the droplets of fine droplets is provided, and the inner room 19 is provided with an activation promotion cart 35 provided with a plurality of upper and lower storage shelves 3 on which plug trays 5 in which grafted seedlings are planted are placed. To accommodate A pre-nozzle 17 is disposed on the inner side wall of the inner wall 2 near both opposing inner wall surfaces, near the ceiling and near the upper and lower intermediate portions, and a pipe 18 for supplying humidifying droplets to these spray nozzles 17. Are arranged along the inner wall surface of the inner wall 2.
[0005]
[Action]
The grafting acclimatization apparatus according to the present invention accommodates an activation promoting cart 35 in which plug trays 5 in which grafted seedlings are planted are placed in a plurality of upper and lower stages in the inner chamber 19, and the temperature in the inner chamber 19 is controlled by the cooling means and the heating. In this way, the survival of the grafted seedlings is promoted. The wall surrounding the inner chamber 19 is constituted by a double wall composed of the outer wall 1 and the inner wall 2, and cooling and heating air circulates only in the space between the outer wall 1 and the inner wall 2, and the inside of the inner wall 2 in which the grafted seedlings are stored. Cooling and heating air does not circulate in the room 19. In this state, the droplets for humidification by the humidifier 16 are sprayed from the spray nozzle 17 through the pipe 18 in the inner chamber 19. Therefore, the humidified air in the inner chamber 19 does not have to be dehumidified by the cooling and heating air, and the high humidity required for the survival of the grafted seedlings can be maintained. In addition, the cooling / heating airflow does not enter the inner chamber 19, and the spray nozzle 17 is further disposed near the inner wall surfaces facing each other on the inner side wall of the inner wall 2, near the ceiling, and near the upper and lower middle portions. A pipe 18 for supplying humidifying droplets to these spray nozzles 17 is arranged along the inner wall surface of the inner wall 2, and spray droplets are supplied evenly to the entire inner chamber 19, so that the There is no humidity difference. Thus, the inside of the inner chamber 19 can be maintained in a suitable environment for promoting the survival of grafted seedlings after grafting.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front cross-sectional view, FIG. 2 is a cross-sectional view, and FIG. 3 is a side cross-sectional view of the acclimation apparatus of this embodiment. The structural characteristic of the acclimation apparatus of this embodiment is that an inner wall 2 made of a material having high thermal conductivity is provided inside an outer wall 1 of the acclimation apparatus formed of a heat insulating panel, and between the outer wall 1 and the inner wall 2. It is to circulate cooling and heating air through the created space. Then, a plurality of storage shelves 3 are provided in the inner wall 2, and a plug tray 5 in which grafted seedlings are planted on each of the storage shelves 3 is arranged. The number of stages of the storage shelf 3 is not particularly limited, and four stages are arranged in the illustrated example. In the storage shelf 3, the plates are arranged in a grid pattern, and a gap is provided between adjacent plates, so that air can flow in the vertical direction of the storage shelf 3, and between the outer wall 1 and the inner wall 2, By operating the circulating fan (the internal fan 13) arranged in the created space, the entire atmosphere in the inner wall 2 can be made the same. As described above, there is a circulating air path for cooling and heating air between the outer wall 1 and the inner wall 2, and the cooling and heating air controls the temperature of the grafting room through the inner wall 2 made of a material having high thermal conductivity. Done.
[0007]
Cooling / heating air is formed by a refrigerator 6 and a heater 7 installed on the top outer wall 1 of the acclimatization apparatus. The refrigerator 6 includes a condenser 9, an external fan 10 for the condenser 9, a compressor 11, an evaporator 12, and an internal fan 13. The internal fan 13 and the evaporator 12 are arranged in a space between the outer wall 1 and the inner wall 2. Is done. Further, the heater 7 is also disposed in a space between the outer wall 1 and the inner wall 2 near the inside fan 13 and the evaporator 12. Then, the air in the space between the outer wall 1 and the inner wall 2 is circulated by the operation of the internal fan 13. At this time, when the evaporator 12 of the refrigerator 6 is operating, cooling air is obtained, and when the heater 7 is operating, heated air is obtained. An artificial illumination lamp 15 (1000 Lux or more) for illuminating the grafted seedling of the plug tray 5 is provided on the upper part of the storage shelf 3. As shown in FIG. 4, an intake port 20 communicating with the inside of the inner wall 2, that is, the outside of the outer wall 1 from the inner chamber 19 is provided on one side wall of the double-wall structure of the acclimation device, and the acclimatization facing the side wall is provided. An exhaust port 21 communicating from the inside of the inner wall 2 to the outside of the outer wall 1 is provided on the side wall of the apparatus, and an exhaust fan 22 is provided in the exhaust port 21. Further, a damper 23 is provided at a suction port of the intake port 20. Then, a CO2 concentration sensor 25 and a temperature sensor 26 are provided at an appropriate location inside the inner wall 2, preferably at a central space.
[0008]
Further, in this embodiment, as shown in FIG. 1 or FIG. 3, a configuration in which a snowboard-shaped gantry 32 is provided at the bottom of the inner chamber 19 of the acclimator having the double side wall structure in parallel with the air blowing direction for cooling and heating. It can also be. As shown in FIG. 5, a partially enlarged view of the bottom of the acclimatization apparatus, an air passage passing through the bottom of the inner chamber 19 is configured by a flared base 32 and the outer wall 1 of the acclimation apparatus. In addition, as shown in FIG. 6, the top plate 33 of the floor frame 32 may be spaced apart so that the cooling / heating air flow can contact the bottom inner wall 2 so that heat can be conducted from the inner wall 2 into the inner chamber 19. preferable. In this manner, the slender base 32 can achieve the function of supporting the inner chamber 19 and the function of forming the lower air passage of the inner chamber 19, and the flow of the temperature-regulated air is averaged, so that the temperature unevenness in the inner chamber 19 is improved. Decrease. Further, in this embodiment, since the air path of the cooling / heating air is provided also in the lower part of the inner chamber 19, heat can be conducted from the six side walls of the inner wall 2 constituting the inner chamber 19, and there is also an effect that the response of the temperature control can be quickly performed. .
[0009]
In addition, the acclimatization apparatus for grafted seedlings accommodates a survival promotion cart 35 (see FIG. 3) in which a plurality of storage shelves 3 on which plug trays 5 in which grafted seedlings are planted are placed, in the interior room 19, and 7 is an enlarged view of a portion A in FIG. 3 (FIG. 7A is a plan view, and FIG. 7B is a side sectional view). As shown in the drawing, a concave shape is formed near the end face of the storage shelf 3 on which the plug tray 5 in which the grafted seedlings are planted is placed (preferably, the front surface or the entire circumference of the storage shelf 3 of the survival promotion trolley 35). If the groove 37 is provided, even if the irrigated water oozes from the plug tray 5 in which the grafted seedlings are planted, the sewage can be guided to the floor by the funnel 39, the chute hose 40 and the like provided below from the concave groove 37. You. Thus, as in the prior art, dirty water falls from the upper storage shelf 3 and scatters on the grafted seedlings on the lower storage shelf 3, thereby adversely affecting the growth of the grafted seedlings or deteriorating the working environment. The problem is solved.
[0010]
A humidifier 16 (see FIG. 1) for humidity control (90% or more) is disposed in the uppermost storage shelf 3, and spray water is sprayed from the humidifier 16 to an appropriate storage shelf 3. A pipe 18 having a spray nozzle 17 at its end is arranged so that it can be sprayed with drops. Since the acclimatization apparatus of the present embodiment has an area of the inner chamber 19 having a size of about 3 tsubos, fine droplets are sprayed from the spray nozzle 17 at the tip thereof using four or more systems of pipes 18 for spraying droplets. A configuration is adopted in which the spray is distributed to an appropriate space in the inner chamber 19 and sprayed. Therefore, the spray droplets can be evenly supplied to the entire interior of the inner chamber 19, and there is no local humidification in the inner chamber 19, and the unevenness in humidity is reduced. The humidifier 16 uses an ultrasonic type having a fine droplet particle diameter. However, the invention is not limited thereto, and any type of humidifier 16 such as a vaporization type, a steam type, and a centrifugal type may be used.
[0011]
According to the present embodiment, since the space in which the cooling / heating air circulates (the space between the outer wall 1 and the inner wall 2) and the humidified space (the inner chamber 19) are separated by the partition, the humidified space is not dehumidified, and the humidified space is not dehumidified. Maintenance becomes possible, and the survival rate of grafted seedlings increases. In addition, with the above-described configuration, the inside of the inner chamber 19 is not exposed to the cooling / heating airflow having an excessively high wind speed, the local humidification is not performed, and the humidity unevenness in the inner chamber 19 can be reduced. Further, since the humidifying liquid droplets are supplied to the entire interior of the inner chamber 19 via the pipe 18, unevenness in humidity is small. In this embodiment, the humidifier 16 main body is installed inside the inner chamber 19, but is installed above the ceiling outer wall 1 of the acclimation apparatus and is inserted into the inner chamber 19 through a duct leading to the inner chamber 19. A configuration in which fine droplets are supplied may be adopted.
[0012]
Further, as shown in FIGS. 1 to 3, a breeze fan (diffusion fan) 42 may be provided on both side surfaces orthogonal to a pair of opposed side wall surfaces on which the piping for the fine droplets for humidification is installed. In this case, the wind from the breeze fan 42 promotes the evaporation of the fine droplets and improves the uniformity of the humidity in the inner chamber 19. In addition, light moderate air blowing by the breeze fan 42 aims to evaporate the plants and promote their growth. In this embodiment, a method may be adopted in which the breeze fan 42 is operated at regular intervals and the breeze fan 42a and the breeze fan 42b are alternately operated as shown in FIG. In this case, the dispersion effect of the fine droplets from the humidifying pipe 18 by spraying and the synergistic effect of the diffusion of the fine droplets by the breeze fans 42a and 42b further enhance the effect of eliminating the unevenness of humidity. As described above, in the present embodiment, by performing a light moderate blow using the breeze fan 42, the wind that has conventionally been diffused into the inner chamber 19 in which the seedlings are stored by the circulation fan for cooling and heating has a large wind speed. The problem that caused the seedlings to wilted was resolved.
[0013]
FIG. 9 shows an atmosphere temperature control circuit in the inner chamber 19 of the acclimatization apparatus of this embodiment. When the cooling switch (SS1) and the heating switch (SS2) are turned on, when the ambient temperature in the inner chamber 19 measured by the temperature sensor 26 is higher than the set temperature (about 28 ° C.), The X1 relay is turned on, and the compressor switch (52C) is turned on. As a result, the refrigerator 6 starts operating and the cooling operation starts. When the ambient temperature in the inner chamber 19 drops to the set value, the X1 relay is turned off and the refrigerator 6 stops. If the ambient temperature in the inner chamber 19 is lower than the set temperature, the heater switch (MC) is turned on, the heater 7 is operated, and the inner chamber 19 is heated. As described above, the operation of the refrigerator 6 and the energization of the heater 7 are controlled by one temperature controller 30, so that the temperature can be controlled. The operation of the refrigerator 6 and the operation of the heater 7 are interlocked so as not to be performed simultaneously.
[0014]
Thus, the heater control and the evaporator control are simultaneously performed by one temperature controller 30, and the appropriate temperature can be efficiently maintained. Further, since the in-compartment fan 13 of the refrigerator 6 can be used not only for cooling the evaporator 12 but also as a heating fan for the heater 7, equipment costs can be reduced. In FIG. 9, TM is a defrost timer, RY1 and RY2 are relays, 51C is a thermal relay, CM is a compressor, X1 is a relay, SV is a solenoid valve, FMC is a motor of the external fan 10 for the condenser 9, FME Denotes a motor of the internal fan 13 for the evaporator 12.
[0015]
In the present embodiment, when the refrigerator 6 and the in-compartment fan 13 or the heater 7 and the in-compartment fan 13 are operated as described above, the air for cooling and heating for controlling the temperature (about 28 ° C.) that is most suitable for grafting seedling activation. Is formed, and when this cooling / heating air is circulated in the space between the double walls consisting of the outer wall 1 and the inner wall 2, the atmosphere in the inner chamber 19 is cooled or heated through the inner wall 2 having a high thermal conductivity, The grafted seedlings stored in the inner chamber 19 can be grown at an appropriate ambient temperature. Moreover, since the cooling and heating air does not flow directly in the inner wall 2, that is, the inner chamber 19, the wind speed of the cooling and heating air does not cause wilting of the grafted seedlings and the rooting becomes good. This is in contrast to the fact that the conventional acclimatization equipment circulated temperature control air directly into the acclimatization room where the grafted seedlings were stored. It is a target. The survival rate of the grafted seedlings of this example was 95 to 98%.
[0016]
In addition, since the conventional acclimatization apparatus operated the refrigerator 6 at a high humidity of 90% or more, frost was easily attached to the evaporator 12 of the refrigerator 6 and the operation efficiency was poor. In the example, since the refrigerator 6 does not directly face the inner chamber 19, the high humidity atmosphere in the inner chamber 19 does not cause frost on the refrigerator 6, thereby increasing its cooling efficiency and saving energy. Further, since the refrigerator 6 is provided on the outer wall 1 above the ceiling, the internal volume of the refrigerator can be effectively used. Further, since the in-compartment fan 13 for the evaporator 12 of the refrigerator 6 is used as a heating fan of the heating heater 7, installation space can be saved and efficient operation can be performed.
[0017]
In the acclimation apparatus of the present embodiment, after the grafting, in order to maintain a suitable environment for promoting the survival of the grafted seedlings, an inner chamber is provided on one side of the acclimation apparatus side surface provided with a space having a double structure of the outer wall 1 and the inner wall 2. 19, an intake port 20 communicating with the outer wall 1, an exhaust port 21 penetrating the outer wall 1 and the inner wall 2 on the side opposite to the side wall, and an exhaust fan 22 provided in the exhaust port 21 for storing the seedlings. The fresh air can be taken into the inner chamber 19 which is to be used. In addition, the exhaust fan 22 is operated to maintain the CO2 concentration at a certain level or more by comparing the measured value of the CO2 concentration of the CO2 concentration sensor 25 provided in the inner chamber 19 with the set value. The CO2 concentration is not reduced, and the carbonic acid assimilation action of the grafted seedlings becomes vigorous, and the growth of the grafted seedlings becomes good. Further, the air in the inner chamber 19 can be ventilated at appropriate times, and the occurrence of mold and the like can be prevented. In the conventional acclimatization device, the room where the grafted seedlings are located has a low CO2 concentration, and the environment is apt to cause powdery mildew due to high temperature and high humidity, which tends to cause abnormal growth and disease of the grafted seedlings. However, such an inconvenience was solved in the apparatus of the present embodiment.
[0018]
【The invention's effect】
According to the present invention, the wall surrounding the inner chamber 19 accommodating the survival promotion cart 35 in which the grafted seedlings are placed in a plurality of upper and lower stages is constituted by the double wall of the outer wall 1 and the inner wall 2, and the cooling and heating air is supplied to the outer wall 1 and the inner wall. 2 is circulated only in the space between the inner wall 2 and the inner chamber 19 formed inside the inner wall 2 is humidified in a state in which cooling and heating air does not enter. Since the high humidity state can be maintained without dehumidification, the survival rate of the grafted seedlings increases, and the grafted seedlings stored in the inner chamber 19 do not receive cooling and heating airflow, so that there is no wilting. In addition, the cooling / heating airflow does not enter the inner chamber 19, and the spray nozzle 17 is disposed near the inner walls facing each other on the inner side wall of the inner wall 2, near the ceiling, and near the upper and lower middle portions. A pipe 18 for supplying humidifying droplets to these spray nozzles 17 is arranged along the inner wall surface of the inner wall 2, and spray droplets are supplied evenly to the entire inner chamber 19, so that local humidification is achieved. Rather, unevenness in humidity in the inner chamber 19 is reduced.
[Brief description of the drawings]
FIG. 1 is a front cross-sectional view of a grafted seedling acclimation apparatus according to an embodiment of the present invention.
FIG. 2 is a cross sectional view of the grafted seedling acclimation apparatus of FIG.
FIG. 3 is a side cross-sectional view of the grafted acclimatization apparatus of FIG. 1;
4 is a side sectional side view of an intake port and an exhaust port of a side wall surface of the grafted seedling acclimation apparatus of FIG. 1;
FIG. 5 is an enlarged sectional view of a lower corner portion of the grafted acclimatization apparatus of FIG. 1;
FIG. 6 is a perspective view of a mushroom-shaped gantry portion of the grafted acclimatization apparatus of FIG.
FIG. 7 is an enlarged plan view and an enlarged side sectional side view near the end face of the storage shelf 3 on which the plug tray 5 of the grafted seedling acclimating apparatus of FIG.
FIG. 8 is an operation timing chart of a pair of breeze fans of the grafted seedling acclimation apparatus of FIG. 1;
FIG. 9 is a circuit diagram of an atmosphere temperature control in the inner room of the grafted acclimatization apparatus according to one embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Outer wall, 2 ... Inner wall, 3 ... Storage shelf, 5 ... Plug tray, 6 ... Refrigerator, 7 ... Heater, 9 ... Condenser, 10 ... Outside fan, 11 ... Compressor, 12 ... Evaporator, 13 ... Storage Inner fan, 15 ... Artificial lighting, 16 ... Humidifier, 17 ... Spray nozzle, 18 ... Piping, 19 ... Inner chamber, 20 ... Inlet, 21 ... Exhaust, 22 ... Exhaust fan, 23 ... Damper, 25 ... CO2 concentration Sensor, 26: Temperature sensor, 30: Temperature controller, 32: Slope-shaped cradle, 33: Saw-shaped cradle top plate, 35: Rooting promotion trolley, 36 ... Rooting promotion trolley frame, 37 ... Recessed groove, 39 ... Funnel , 40 ... Shoot hose, 42 ... Breeze fan (diffusion fan)
