JP3653259B2 - Cooling equipment - Google Patents

Cooling equipment Download PDF

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Publication number
JP3653259B2
JP3653259B2 JP2002235570A JP2002235570A JP3653259B2 JP 3653259 B2 JP3653259 B2 JP 3653259B2 JP 2002235570 A JP2002235570 A JP 2002235570A JP 2002235570 A JP2002235570 A JP 2002235570A JP 3653259 B2 JP3653259 B2 JP 3653259B2
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Japan
Prior art keywords
duct
cold
room
air
cold insulation
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JP2002235570A
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JP2004076991A (en
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勝弘 白川
義忠 青井
慎治 松浦
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Daikin Applied Systems Co Ltd
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Daikin Applied Systems Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、部屋の床面上に載置された食材を略無菌状態で保冷する保冷設備に関するものである。
【0002】
【従来の技術】
従来より、冷凍又は冷温での保存を要する食材を保冷可能な部屋に配置することがある。例えば、卸売り市場にて鮮魚や生鮮野菜のような冷凍又は冷蔵を要する食材をせりにかける場合、卸売り市場の部屋に前記食材を複数並べて配置し、これを仲卸人がせり落として運び出していくものである。以下に、食材がまぐろの場合について説明する。
【0003】
せりにかけられるまぐろは、氷詰めされた生まぐろか、又は、冷凍まぐろの状態で卸売り市場に運び込まれる。せりは通常は午前4時〜5時頃に行われるため、運び込まれたまぐろは午前0時頃から入荷の都度卸売り市場のせりが行われる部屋に並べられる。せりが行われる部屋は、床面はもちろん天井及び周囲の側壁を有する密閉された部屋である。そして、この部屋の床面にまぐろをすのこ(パレット)を介して載置して並べていく。まぐろは、卸売り市場のせりが行われる部屋に4〜5時間配置しておくため、この部屋には保冷設備を設けておくものである。
【0004】
保冷設備は、図6に示すように、空調装置及びダクト2’を部屋1の天井13や側壁12の上端部に取付けたり天井13から吊り下げて配設して構成してある。そして、ダクトから冷気を吐出して部屋を冷房して保冷するものである。
【0005】
しかしながら、このような保冷設備にあっては、冷気を吐出するダクトを作業者の人体より高い位置に配置してあり、冷気が作業者の頭上から噴出されるため、作業者の体感温度が低く作業性が悪いものであり、また、床面上に載置された食材を保冷するのに高い位置にあるダクトから冷気を吐出して部屋全体を冷房することになるため、保冷効率が悪い(即ち消費電力が増大する)ものであった。
【0006】
そこで、ダクトを低い位置に配置することが考えられるが、この場合、吐出される冷気が食材に吹き付けられることとなり、食材が生まぐろの場合にはまぐろの表層部が乾燥し、冷凍まぐろの場合にはまぐろの表層部が解凍して食材の鮮度及び品質が低下してしまうものであった。また更に、食材は清潔にして略無菌状態を保つことが好ましく、特にダクトを低い位置に配設した場合、ダクトから吐出される冷気を除菌する必要があった。
【0007】
【発明が解決しようとする課題】
本発明は上記の点に鑑みてなされたものであり、その目的とするところは、作業者の体感温度の低下による作業性の悪化の防止と保冷効率を向上させると共に、食材に冷気が吹き付けられることによる鮮度及び品質の低下の防止と、食材を略無菌状態に保つことが可能な保冷設備を提供することを課題とするものである。
【0008】
【課題を解決するための手段】
上記課題を解決するために本発明に係る保冷設備は、密閉された部屋1の床面11上に載置された食材3を略無菌状態で保冷する保冷設備であって、部屋1の側壁12面に沿ってその下部に筒状フィルターからなり除菌した空気を吐出可能なダクト2を配設し、該ダクト2内に冷気を送風してダクト2から除菌した冷気を微風状態で吐出して床面11から食材3の上端部高さまでに低温の保冷領域4を形成することを特徴とするものである。このような構成とすることで、保冷領域4に配置された食材3に冷気が吹き付けられることで食材3の鮮度及び品質が低下するのを防止できると共に、保冷領域4の上方の空気を巻き込むのを抑えながら保冷領域4に冷気を送風して保冷領域4を効率良く低温に保つことができ、更に、冷気がノズルから吐出されるものと比較して微風状態で吐出し易くなる。また、冷風が作業者の頭上から吹き付けられて作業者の体感温度が低くなって作業性が悪くなるのを防止することができて且つ、部屋1全体を冷房する必要がなくて保冷効率が良いものである。
【0009】
また、ダクト2の全周面から冷気を吐出することが好ましい。このような構成とすることで、冷気を微風状態で吐出し易くなるものである。
【0010】
また、冷気をダクト2から秒速0.05乃至0.1mの速度で吐出することが好ましい。このような構成とすることで、食材3に冷気が吹き付けられて食材3の鮮度及び品質が低下するのを確実に防止することができる。
【0011】
また、ダクト2を保冷領域4の上端部高さ近傍に配設することが好ましい。このような構成とすることで、保冷領域4のみに冷気を送ることができてより一層冷効率が良くなる。
【0012】
【発明の実施の形態】
本発明を添付図面に示す実施形態に基づいて説明する。本発明の保冷設備は、本実施形態では卸売り市場の部屋1に設けるものについて説明するが、特にこれに限定されないものである。また更に、本実施形態では、部屋1は床面11、天井13及び側壁12とによって内部にほぼ密閉された空間が形成されるものである。以下、食材3をまぐろ3a(冷凍まぐろ及び生まぐろ)とし、このまぐろ3aを魚の卸売り市場の部屋1に並べて保冷する場合について説明する。
【0013】
部屋1は、本実施形態ではせりを行うために卸売り市場に設けられるもので、おおよその寸法は幅が16m、奥行きが19m、高さが4.5mとなるように形成してある。この部屋1は、図3に示すように、横に4部屋並設してあり、手前が仲卸人が出入りする仲卸側となり、奥が食材3(即ちまぐろ3a)を搬出入する搬入側となる。
【0014】
各部屋1の中卸側の側壁12aには、仲卸人が出入りするための出入口(おおよその寸法は幅が3m又は5m、高さ3m)及び開閉自在なシャッター14が複数設けてあり、また、各部屋1の搬入側の側壁12bには、トラックから荷卸しが可能な搬入口(おおよその寸法は幅が7m、高さが4m)及び開閉自在なシャッター15が一つずつ設けてある。また、各部屋1の奥行き方向の側壁12cには、隣接する部屋1に出入り可能な通用口(図示せず)が設けてあってもよい。
【0015】
図1及び図2に床面11にまぐろ3aを置いた部屋1を斜め上方から見た側面図及び斜視図を示し、図4に部屋1の内部の斜視図を示す。
【0016】
図4に示すように、まぐろ3aはすのこ5を介して床面11に載置されるが、まぐろ3aは横に寝かせた場合高さがせいぜい50cm程度で、すのこ5は高さがせいぜい10cm程度であるため、床面11からまぐろ3aの上端までの高さはせいぜい60cm程度である。そこで本実施形態では、床面11から高さ略60cmまでの空間を後述する保冷領域4とし、この保冷領域4に冷気を保冷設備にて吐出するものである。
【0017】
次に、保冷設備について説明する。上述した部屋1には保冷設備として、部屋1の下部、特に保冷領域4の近傍にダクト2を配設すると共に、このダクト2が接続される空調機を配設するものである。
【0018】
空調機は、部屋1の外部又は内部に配設されてダクト2に冷気を通風するもので、ヒートポンプ等の冷却部及び排熱部と、制御部とで主体が構成される。本実施形態では、空調機は排熱部が冷却水によって熱交換が行われる水冷式としてある。そして、このような空調機にはダクト2が接続されるもので、空調機が部屋1の外部に配設される場合には側壁12を貫通してダクト2を配設するものである。
【0019】
ダクト2は、全周面から空気を吐出可能なようにフィルター自体を筒状に形成した断面略円形状の筒状フィルターで構成される。
【0020】
筒状フィルターは、本実施形態では、直径約2μmのポリプロピレン繊維を一本毎に帯電させて「電石」状とし、前記電石状の繊維から形成される不織布(所謂「電石不織布」)にて形成される。このフィルターは、繊維で粉塵等を濾して除去するだけでなく、繊維で濾し得ない微細な粉塵をも電石状の繊維で吸着して除去することができる。また、フィルターは接着剤を用いずに形成してあるため、高耐薬品性(耐酸及び耐アルカリ)、高撥水性、高耐水性、難燃性を有する。
【0021】
このような筒状フィルターにてダクト2を形成してあるため、ダクト2から吐出される空気(冷気)は、ほとんど粉塵が無く略無菌状態を達成することが可能となる。
【0022】
このような筒状フィルターから成るダクト2は、部屋1の上述した保冷領域4の上端部の近傍に配設される。本実施形態では、部屋1の側壁12面の床面11から70cmの高さの位置の取付けられる。そしてこのダクト2は、部屋1の内部に配設された空調機に接続され、内部に空調機からの冷気が通風され、全周面から冷気が吐出される。冷気は、ダクト2から微風状態(毎秒0.05m乃至0.1m)で吐出される。
【0023】
このような保冷設備を設けた部屋1でまぐろ3aのせりが行われる。まぐろ3aは、氷詰めされてチルド状態となった生まぐろ3aか又は冷凍まぐろ3aの状態で部屋1に運び込まれる。部屋1の搬入側の側壁12bに形成してある搬入口を開放してトラックを横付けしすべり台によりこれらの生まぐろ3aや冷凍まぐろ3aを降ろす。そして、まぐろ3aを部屋1の床面11にすのこ5を配置してこのすのこ5上にまぐろ3aを載置して並べていく。
【0024】
まぐろ3aは、上述した保冷領域4、即ち、部屋1の床面11から略60cmまでの空間に配置され、ダクト2からの冷気が保冷領域4の上方の空気をそれ程巻き込むことなく保冷領域4に向けて吐出され、保冷領域4が低温に保たれる。また、まぐろ3aを部屋1に運び込んで床面11上に載置したりする作業者は、頭上から冷気が吹き付けられることがないので体感温度が低下せず作業性良く作業を行うことができる。
【0025】
部屋の温度分布の一例を図5に示す。図5(a)は、部屋の図2の矢印Aに示される断面における温度分布を示し、図5(b)は、部屋の図2の矢印Bに示される断面における温度分布を示す。なお、測定時の温度は床面が約25℃、ダクト2から吐出される冷気は10℃で、食材3aは冷凍まぐろである。図5(a)及び(b)から保冷領域4が低温に保冷されているのが分かる。
【0026】
以上のような構成によれば、冷気がダクト2から微風状態で吐出されるため、冷風が食材3に吹き付けられることがなくなって、保冷領域4に配置された生まぐろ3aに冷気が吹き付けられることで生まぐろ3aの表層部が乾燥したり、冷凍まぐろ3aに冷気が吹き付けられることで冷凍まぐろ3aの表層部が解凍したりするのが防止されると共に、保冷領域4の上方の空気を巻き込むのを抑えながら保冷領域4に冷気を送風して保冷領域4を効率良く低温に保つことができ、更に、冷風がダクト2の全周面から吐出されるため、全周のうち部分的にノズルが設けられるものと比較して微風状態で吐出し易くなる。
【0027】
また、ダクト2を部屋1の下部、特に床面11から該床面11に載置される食材3の上端部高さ(本実施形態では60cm)までの保冷領域4の近傍に配設してあるため、ダクト2を天井13付近に配設したものと比較して、冷風が作業者の頭上から吹き付けられて作業者の体感温度が低くなって作業性が悪くなるのを防止することができて且つ、部屋1全体を冷房する必要がなくて保冷効率が良い、即ち消費電力を低く抑えることができるものである。
【0028】
本実施形態においては、ダクト2を床面11から70cm程の高さに配設してあるが、作業者がダクト2に接触してダクト2を損傷する惧れ等がある場合には、これよりも上方にダクト2を配設すればよい例えばダクト2を床面11から2m50cm程の高さに配設することで、作業者がダクト2に接触して損傷する惧れを解消できると共に、部屋1全体を冷房することなく保冷効率を良くして且つ、頭上から冷気が勢い良く吹き付けられて作業者の体感温度が低下してしまうこともないものである。
【0029】
なお、以上のような保冷設備は、上述したように卸売り市場の部屋1(倉庫等を含む)だけでなく他の部屋1に適用してもよいものであり、また、食材3としては、まぐろ3aだけでなく他の鮮魚や生鮮野菜等の冷凍又は冷蔵を要する食材であってもよい。
【0030】
【発明の効果】
上記のように本発明の請求項1記載の発明にあっては、密閉された部屋の床面上に載置された食材を略無菌状態で保冷する保冷設備であって、部屋の側壁面に沿ってその下部に筒状フィルターからなり除菌した空気を吐出可能なダクトを配設し、該ダクト内に冷気を送風してダクトから除菌した冷気を微風状態で吐出して床面から食材の上端部高さまでに低温の保冷領域を形成したので、冷気がダクトから微風状態で吐出されるため、冷風が食材に吹き付けられることがなくなって、保冷領域に配置された生まぐろに冷気が吹き付けられることで生まぐろの表層部が乾燥したり、冷凍まぐろに冷気が吹き付けられることで冷凍まぐろの表層部が解凍したりするのが防止されると共に、保冷領域の上方の空気を巻き込むのを抑えながら保冷領域に冷気を送風して保冷領域を効率良く低温に保つことができる。また、ダクトを部屋の側壁面に沿ってその下部に配設してあるため、ダクトを天井付近に配設したものと比較して、冷風が作業者の頭上から吹き付けられて作業者の体感温度が低くなって作業性が悪くなるのを防止することができて且つ、部屋全体を冷房する必要がなくて保冷効率が良い、即ち消費電力を低く抑えることができるものであり、更に、筒状フィルターにてダクトを形成してあるため、ダクトからはほとんど粉塵が無く略無菌状態の冷気が吐出される。
【0031】
また請求項2記載の発明にあっては、上記請求項1記載の発明の効果に加えて、ダクトの全周面から冷気を吐出するので、冷気を微風状態で吐出し易くなる。
【0032】
また請求項3記載の発明にあっては、上記請求項1又は2記載の発明の効果に加えて、冷気をダクトから秒速0.05乃至0.1mの速度で吐出するので、生まぐろに冷気が吹き付けられて生まぐろの表層部が乾燥したり、冷凍まぐろに冷気が吹き付けられて冷凍まぐろの表層部が解凍したりするのを確実に防止できる。
【0033】
また請求項4記載の発明にあっては、上記請求項1乃至3のいずれかに記載の発明の効果に加えて、ダクトを保冷領域の上端部高さ近傍に配設するので、保冷領域のみに冷気を送ることができてより一層保冷効率が良くなる。
【図面の簡単な説明】
【図1】本発明の一実施形態を説明する側面図である。
【図2】同上における斜視図である。
【図3】同上における全体の斜視図である
【図4】同上における部屋の内部の斜視図である。
【図5】同上における部屋の温度分布を示し、(a)は図2の矢印Aに示される断面における温度分布であり、(b)は図2の矢印Bに示される断面における温度分布である。
【図6】従来例の部屋の内部の斜視図である。
【符号の説明】
1 部屋
11 床面
12 側壁
2 ダクト
3 食材
4 保冷領域
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold insulation facility that keeps foods placed on the floor of a room in a substantially aseptic state.
[0002]
[Prior art]
Conventionally, foods that need to be frozen or stored at a cold temperature are sometimes placed in a room where the food can be kept cold. For example, when putting foods that require freezing or refrigeration, such as fresh fish or fresh vegetables, on the wholesale market, arrange the foods side by side in the wholesale market room, and drop them off and carry them out. Is. Below, the case where a foodstuff is a tuna is demonstrated.
[0003]
The tuna to be put on the sardine is brought to the wholesale market in the state of raw tuna filled with ice or frozen tuna. Since the sashimi is usually performed from 4 am to 5 pm, the tuna that is brought in is arranged in a room where the wholesale market is performed from around midnight. The room in which the screen is carried out is a sealed room having a ceiling and surrounding side walls as well as a floor surface . Then, tuna is placed on the floor of this room through a pallet and arranged. The tuna is placed in a room where a wholesale market is held for 4 to 5 hours, and this room is provided with a cold insulation facility.
[0004]
As shown in FIG. 6, the cold insulation equipment is configured such that the air conditioner and the duct 2 ′ are attached to the ceiling 13 of the room 1 or the upper end of the side wall 12 and are suspended from the ceiling 13. Then, the cool air is discharged from the duct to cool the room and keep it cool.
[0005]
However, in such a cold insulation facility, the duct for discharging the cold air is arranged at a position higher than the operator's human body, and the cold air is ejected from above the operator's head, so that the temperature of the operator's sense of temperature is low. The work efficiency is poor, and the whole room is cooled by discharging cool air from a duct located at a high position to keep the food placed on the floor cold, so the cooling efficiency is poor ( That is, power consumption increases.
[0006]
Therefore, it is conceivable to arrange the duct at a low position, but in this case, the discharged cold air will be blown to the food, and if the food is raw tuna, the surface layer part of the tuna will dry, and in the case of a frozen tuna The surface layer of the tuna was thawed and the freshness and quality of the food were reduced. Furthermore, it is preferable that the food is clean and kept in a substantially aseptic state. In particular, when the duct is disposed at a low position, it is necessary to sterilize the cold air discharged from the duct.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and the object of the present invention is to prevent deterioration of workability due to a decrease in the sensible temperature of the worker and improve the cold insulation efficiency, and cool air is blown to the food. It is an object of the present invention to provide a cold insulation facility capable of preventing deterioration of freshness and quality due to the above and capable of keeping foodstuffs in a substantially sterile state.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the cold insulation equipment according to the present invention is a cold insulation equipment that keeps the food 3 placed on the floor 11 of the sealed room 1 in a substantially aseptic condition, and includes a side wall 12 of the room 1. along the surface and arranged capable of ejecting duct 2 air sterilized consists cylindrical filter in its lower, discharge the cool air sterilization from the duct 2 in light winds by blowing cold air into the duct 2 The low temperature cold insulation region 4 is formed from the floor surface 11 to the height of the upper end of the food 3. By adopting such a configuration, it is possible to prevent the freshness and quality of the food 3 from being deteriorated by blowing cold air to the food 3 arranged in the cold insulation region 4 and to entrain air above the cold insulation region 4. It is possible to efficiently cool the cold insulation region 4 at a low temperature by blowing cool air to the cold insulation region 4 while suppressing the cooling, and it becomes easier to discharge the cold air in a light wind state than that in which the cold air is discharged from the nozzle. Further, it is possible to prevent cold air from being blown from above the operator's head and lowering the sensible temperature of the operator and deteriorating workability, and it is not necessary to cool the entire room 1 and cooling efficiency is good. Is.
[0009]
Further, it is preferable to discharge cool air from the entire circumferential surface of the duct 2. With such a configuration, it becomes easy to discharge cool air in a light wind state.
[0010]
Further, it is preferable to discharge cool air from the duct 2 at a speed of 0.05 to 0.1 m / s. By setting it as such a structure, it can prevent reliably that cold air is sprayed on the foodstuff 3 and the freshness and quality of the foodstuff 3 fall.
[0011]
Moreover, it is preferable to arrange the duct 2 in the vicinity of the height of the upper end portion of the cold insulation region 4. By setting it as such a structure, cold air can be sent only to the cold insulation area | region 4, and cooling efficiency becomes still better.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described based on embodiments shown in the accompanying drawings. In the present embodiment, the cold insulation equipment of the present invention will be described as being provided in the wholesale market room 1, but is not particularly limited thereto. Furthermore, in the present embodiment, the room 1 is formed with a substantially sealed space inside by the floor surface 11, the ceiling 13 and the side wall 12 . Hereinafter, the case where the foodstuff 3 is the tuna 3a (frozen tuna and raw tuna), and this tuna 3a is arranged in the room 1 of the fish wholesale market and is kept cold.
[0013]
In the present embodiment, the room 1 is provided in the wholesale market for carrying out a slide, and approximate dimensions are formed such that the width is 16 m, the depth is 19 m, and the height is 4.5 m. As shown in FIG. 3, this room 1 has four rooms arranged side by side. The front side is the side where the wholesaler goes in and out, and the back side is the carry-in side where the food 3 (that is, the tuna 3a) is carried in and out. It becomes.
[0014]
The side wall 12a on the wholesale side of each room 1 is provided with a plurality of entrances and exits (approximately approximate dimensions are 3m or 5m in width and 3m in height) and a shutter 14 that can be opened and closed. The side wall 12b on the carry-in side of each room 1 is provided with a carry-in port (approximate dimensions are a width of 7 m and a height of 4 m) and a shutter 15 that can be opened and closed. In addition, the side wall 12c in the depth direction of each room 1 may be provided with a service port (not shown) that can enter and exit the adjacent room 1.
[0015]
1 and 2 show a side view and a perspective view of the room 1 in which the tuna 3a is placed on the floor 11 as seen obliquely from above, and FIG. 4 shows a perspective view of the interior of the room 1.
[0016]
As shown in FIG. 4, the tuna 3a is placed on the floor 11 via the slat 5, but the tuna 3a is about 50cm in height when laid down sideways, and the slat 5 is about 10cm in height at most. Therefore, the height from the floor surface 11 to the upper end of the tuna 3a is at most about 60 cm. Therefore, in this embodiment, a space from the floor surface 11 to a height of about 60 cm is set as a cold insulation region 4 described later, and cold air is discharged into the cold insulation region 4 by a cold insulation facility.
[0017]
Next, the cold insulation equipment will be described. In the room 1 described above, as a cold insulation facility, a duct 2 is disposed in the lower part of the room 1, particularly in the vicinity of the cold insulation region 4, and an air conditioner to which the duct 2 is connected is disposed.
[0018]
The air conditioner is disposed outside or inside the room 1 and ventilates the cool air through the duct 2, and a main part is configured by a cooling unit such as a heat pump, a heat exhaust unit, and a control unit. In the present embodiment, the air conditioner is a water-cooled type in which the heat is exchanged by the cooling water in the exhaust heat unit. The duct 2 is connected to such an air conditioner. When the air conditioner is disposed outside the room 1, the duct 2 is disposed through the side wall 12.
[0019]
The duct 2 is configured by a cylindrical filter having a substantially circular cross section in which the filter itself is formed in a cylindrical shape so that air can be discharged from the entire circumferential surface.
[0020]
In this embodiment, the cylindrical filter is formed of a non-woven fabric (so-called “denishi non-woven fabric”) formed from the above-mentioned dendritic fibers by charging polypropylene fibers each having a diameter of about 2 μm to form a “denite” shape. Is done. This filter not only filters and removes dust and the like with fibers, but also adsorbs and removes fine dust that cannot be filtered with fibers with dendritic fibers. Further, since the filter is formed without using an adhesive, it has high chemical resistance (acid resistance and alkali resistance), high water repellency, high water resistance, and flame resistance.
[0021]
Since the duct 2 is formed by such a cylindrical filter, the air (cold air) discharged from the duct 2 has almost no dust and can achieve a substantially aseptic state.
[0022]
The duct 2 formed of such a cylindrical filter is disposed in the vicinity of the upper end portion of the above-described cold insulation region 4 in the room 1. In this embodiment, it is attached at a position 70 cm high from the floor surface 11 of the side wall 12 of the room 1. And this duct 2 is connected to the air conditioner arrange | positioned inside the room 1, the cool air from an air conditioner is ventilated inside, and cool air is discharged from the perimeter surface. The cool air is discharged from the duct 2 in a light wind state (0.05 m to 0.1 m per second).
[0023]
The tuna 3a is placed in the room 1 provided with such cold insulation equipment. The tuna 3a is carried into the room 1 in the state of a raw tuna 3a that has been packed in ice and is in a chilled state or a frozen tuna 3a. The carry-in entrance formed in the side wall 12b on the carry-in side of the room 1 is opened, the truck is placed, and the raw tuna 3a and the frozen tuna 3a are lowered by a slide. Then, the tuna 3 a is placed on the floor 11 of the room 1, and the tuna 3 a is placed and arranged on the saw 5.
[0024]
The tuna 3a is disposed in the cold insulation region 4 described above, that is, in a space approximately 60 cm from the floor surface 11 of the room 1, and the cold air from the duct 2 enters the cold insulation region 4 without entraining the air above the cold insulation region 4 so much. The cold insulation region 4 is kept at a low temperature. Further, an operator who carries the tuna 3a into the room 1 and places it on the floor surface 11 can perform work with good workability without lowering the sensible temperature because the cool air is not blown from the overhead.
[0025]
An example of the temperature distribution in the room is shown in FIG. 5A shows the temperature distribution in the cross section indicated by the arrow A in FIG. 2 of the room, and FIG. 5B shows the temperature distribution in the cross section indicated by the arrow B in FIG. In addition, the temperature at the time of a measurement is about 25 degreeC on a floor surface, the cold air discharged from the duct 2 is 10 degreeC, and the foodstuff 3a is a frozen tuna. It can be seen from FIGS. 5A and 5B that the cold insulation region 4 is kept cold at a low temperature.
[0026]
According to the configuration as described above, since the cool air is discharged from the duct 2 in a breeze state, the cool air is not blown to the food material 3 and the cool air is blown to the raw tuna 3 a arranged in the cold insulation region 4. As a result, the surface layer portion of the raw tuna 3a is dried and the surface layer portion of the frozen tuna 3a is prevented from being thawed by blowing cold air on the frozen tuna 3a, and the air above the cold insulation region 4 is entrained. Since the cool air can be efficiently kept at a low temperature by blowing cool air to the cold insulation region 4 while suppressing cold air, and the cold air is discharged from the entire circumferential surface of the duct 2, the nozzle is partially It becomes easy to discharge in a light wind state compared with what is provided.
[0027]
Further, the duct 2 is disposed in the lower part of the room 1, particularly in the vicinity of the cold insulation region 4 from the floor surface 11 to the height of the upper end portion of the food 3 placed on the floor surface 11 (60 cm in this embodiment). Therefore, compared with the case where the duct 2 is disposed near the ceiling 13, it is possible to prevent cold air from being blown from above the operator's head and lowering the operator's perceived temperature to deteriorate workability. Moreover, it is not necessary to cool the entire room 1 and the cooling efficiency is good, that is, the power consumption can be kept low.
[0028]
In the present embodiment, the duct 2 is disposed at a height of about 70 cm from the floor surface 11, but if there is a possibility that the operator may contact the duct 2 and damage the duct 2, this is the case. What is necessary is just to arrange | position the duct 2 upwards . For example, by disposing the duct 2 at a height of about 2 m50 cm from the floor surface 11, it is possible to eliminate the possibility that an operator will be in contact with the duct 2 and damage it, and improve the cooling efficiency without cooling the entire room 1. In addition, cold air is blown from the overhead and the temperature of the operator's sensation does not decrease.
[0029]
In addition, as mentioned above, the cold storage facilities as described above may be applied not only to the wholesale market room 1 (including warehouses) but also to other rooms 1. In addition to 3a, other fresh fish, fresh vegetables and the like that require freezing or refrigeration may be used.
[0030]
【The invention's effect】
As described above, in the invention described in claim 1 of the present invention, it is a cold insulation facility that keeps food placed on the floor surface of a sealed room in a substantially aseptic condition, and is provided on the side wall surface of the room. along the air can be discharged duct that sterilization consists cylindrical filter is disposed in a lower portion thereof, food from the floor by discharging cool air sterilization from duct breeze state by blowing cold air into the duct Because the cold air is discharged from the duct in a breeze state, the cold air is no longer blown to the food, and the cold air is blown to the raw tuna placed in the cold region. This prevents the tuna surface layer from drying out and the frozen tuna from being blown with cold air to prevent the frozen tuna surface layer from thawing and prevents air from being trapped above the cold storage area. While keeping cold It is possible to maintain the cold region efficiently cold by blowing cold air. In addition, since the duct is arranged along the side wall surface of the room at the lower part thereof, compared to the duct arranged near the ceiling, cold air is blown from above the operator's head so that the temperature of the operator can be felt. It is possible to prevent the workability from being lowered and the workability is not deteriorated, and it is not necessary to cool the whole room, and the cooling efficiency is good, that is, the power consumption can be kept low. Since the duct is formed by the filter, there is almost no dust from the duct, and substantially aseptic cold air is discharged.
[0031]
In addition, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the cool air is discharged from the entire peripheral surface of the duct, it becomes easy to discharge the cool air in a breeze state.
[0032]
In the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the cool air is discharged from the duct at a speed of 0.05 to 0.1 m / s. It is possible to reliably prevent the surface layer portion of the raw tuna from being dried and the surface layer portion of the frozen tuna from being thawed by the cold air being blown to the frozen tuna.
[0033]
In the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the duct is disposed in the vicinity of the height of the upper end portion of the cold insulation region, so that only the cold insulation region is provided. Cooling air can be sent to the chiller, and the cooling efficiency is further improved.
[Brief description of the drawings]
FIG. 1 is a side view illustrating an embodiment of the present invention.
FIG. 2 is a perspective view of the same as above.
FIG. 3 is a perspective view of the whole of the above. FIG. 4 is a perspective view of the inside of the room.
5 shows the temperature distribution of the room in the same as above, (a) is the temperature distribution in the cross section indicated by the arrow A in FIG. 2, (b) is the temperature distribution in the cross section indicated by the arrow B in FIG. .
FIG. 6 is a perspective view of the interior of a conventional room.
[Explanation of symbols]
1 Room 11 Floor 12 Side Wall 2 Duct 3 Food 4 Cold Storage Area

Claims (4)

密閉された部屋の床面上に載置された食材を略無菌状態で保冷する保冷設備であって、部屋の側壁面に沿ってその下部に筒状フィルターからなり除菌した空気を吐出可能なダクトを配設し、該ダクト内に冷気を送風してダクトから除菌した冷気を微風状態で吐出して床面から食材の上端部高さまでに低温の保冷領域を形成して成ることを特徴とする保冷設備。It is a cold insulation facility that keeps food placed on the floor surface of a sealed room in a substantially aseptic condition, and is capable of discharging sterilized air consisting of a cylindrical filter at the bottom along the side wall surface of the room the duct was arranged, characterized in that by forming a low-temperature cold region by blowing cold air into the duct from the floor by discharging cool air sterilization from duct light winds to the upper end portion of the selected foodstuff And cold insulation equipment. ダクトの全周面から冷気を吐出して成ることを特徴とする請求項1記載の保冷設備。  The cold insulation equipment according to claim 1, wherein cold air is discharged from the entire circumferential surface of the duct. 冷気をダクトから秒速0.05乃至0.1mの速度で吐出して成ることを特徴とする請求項1又は2記載の保冷設備。  The cold insulation equipment according to claim 1 or 2, wherein cold air is discharged from the duct at a speed of 0.05 to 0.1 m / s. ダクトを保冷領域の上端部高さ近傍に配設することを特徴とする請求項1乃至3のいずれかに記載の保冷設備。  The cold insulation equipment according to any one of claims 1 to 3, wherein the duct is disposed in the vicinity of the height of the upper end portion of the cold insulation region.
JP2002235570A 2002-08-13 2002-08-13 Cooling equipment Expired - Fee Related JP3653259B2 (en)

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JP5714301B2 (en) * 2010-11-11 2015-05-07 高砂熱学工業株式会社 Cooling system and cooling method
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