JP2010255903A - Air curtain device for refrigeration storage - Google Patents
Air curtain device for refrigeration storage Download PDFInfo
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- JP2010255903A JP2010255903A JP2009105096A JP2009105096A JP2010255903A JP 2010255903 A JP2010255903 A JP 2010255903A JP 2009105096 A JP2009105096 A JP 2009105096A JP 2009105096 A JP2009105096 A JP 2009105096A JP 2010255903 A JP2010255903 A JP 2010255903A
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Abstract
Description
この発明は、ピッキング用の冷蔵貯蔵庫などに装備したエアーカーテン装置に関する。 The present invention relates to an air curtain device equipped in a refrigerated storage for picking or the like.
頭記のピッキング用冷蔵貯蔵庫は、食品の配送センターなどに設備して外食産業やスーパーマーケットに配送する食品等を保管しておくものである。このピッキング用冷蔵貯蔵庫は、庫内に据付けたピッキング用棚装置に対して行うピッキングの作業性を高めるために貯蔵庫の前面側（ピッキング作業を行う搬出側）を開放しており、さらにこの開放端面から外気熱が庫内に侵入するのを防ぐための手段として冷蔵貯蔵庫の天井部にエアーカーテン装置を装備し、このエアーカーテン装置を通じて開放端面に冷気エアーカーテンを吹き出し形成するようにしている（例えば、特許文献１参照）。
次に、ピッキング用冷蔵貯蔵庫に装備した前記エアーカーテン装置の従来構成を図２，図３に示す。図２において、１は前面開放形の冷蔵貯蔵庫、２は庫内に据付けたピッキング用棚装置、３は冷蔵貯蔵庫１の天井部に設置して貯蔵庫の開放端面にエアーカーテンを吹き出し形成するエアーカーテン装置の送風ユニットである。
The refrigerated storage for picking mentioned above is installed in a food distribution center or the like to store foods to be delivered to the restaurant industry or supermarkets. This refrigerated storage for picking has opened the front side (unloading side for picking work) of the storage in order to enhance the workability of picking performed with respect to the picking shelf device installed in the storage, and this open end face As a means for preventing the outside air heat from entering into the cabinet, an air curtain device is provided on the ceiling of the refrigerated storage, and a cold air curtain is blown out on the open end face through the air curtain device (for example, , See Patent Document 1).
Next, FIG. 2 and FIG. 3 show the conventional configuration of the air curtain device equipped in the refrigerated storage for picking. In FIG. 2, 1 is a front open type refrigerated storage, 2 is a picking shelf installed in the storage, 3 is an air curtain that is installed on the ceiling of the refrigerated storage 1 and blows out an air curtain on the open end surface of the storage It is the ventilation unit of an apparatus.
エアーカーテン装置の送風ユニット３は、ダクト３ａの内部にインナーダクト４，ミドルダクト５，アウターダクト６を画成した上で、ダクト３ａの後端入口側には前記インナーダクト４，ミドルダクト５と個別に対応する送風ファン７を、またインナーダクト４には冷却器（冷凍機のフィン・チューブ形エバポレータ）８を設け、さらにダクト３ａの上部にはアウターダクト６に対応する外気ファン９を備えた構造になる。なお、８ａは冷却器８の蒸発コイルに接続した冷媒配管である。
また、冷蔵貯蔵庫３の前面上部には前記送風ユニット３のインナーダクト４，ミドルダクト５，アウターダクト６にそれぞれ通じるエアーカーテン吹出口４ａ，５ａ，６ａが下向き開口し、この吹出口に整流ハニカムを備えている。なお、１０は前記のエアーカーテン吹出口に対向して床面側に設けたグレーチング、１１は夜間時に冷蔵貯蔵庫３の開放端面を覆うナイトカバーであり、冷蔵貯蔵庫３の庫内には前記冷却器８とは別に庫内保冷用の冷却器を装備している。
The blower unit 3 of the air curtain device defines an inner duct 4, a middle duct 5 and an outer duct 6 inside the duct 3a, and the inner duct 4, the middle duct 5 An individually corresponding blower fan 7, a cooler (a fin / tube evaporator of a refrigerator) 8 is provided in the inner duct 4, and an outside air fan 9 corresponding to the outer duct 6 is provided above the duct 3a. Become a structure. In addition, 8a is a refrigerant | coolant piping connected to the evaporation coil of the cooler 8. FIG.
In addition, air curtain outlets 4a, 5a, 6a communicating with the inner duct 4, the middle duct 5 and the outer duct 6 of the air blowing unit 3 are opened downward at the front upper portion of the refrigerator storage 3, and a rectifying honeycomb is provided at the outlet. I have. In addition, 10 is a grating provided on the floor side facing the air curtain outlet, and 11 is a night cover that covers the open end surface of the refrigerated storage 3 at night. In addition to 8, it is equipped with a cooler for cold storage inside the cabinet.
また、図３は前記送風ユニット３の詳細構造を表す断面図で、ダクト３ａの内部にはダクトの長手方向に沿って敷設したダクト仕切壁１５，およびその前後に配した垂直方向のダクト仕切壁１６，１７を配してインナーダクト４，ミドルダクト５，およびアウターダクト６の相互間を仕切っている。さらに、インナーダクト４に配した冷却器８の底部側には保冷運転中に生じた着霜を溶解する除霜ヒータ１８を備えている。
上記の構成で、ピッキング作業中はエアーカーテン装置の送風ユニット３を運転し、冷蔵貯蔵庫３の開放端面に向けて内外３層のインナーエアーカーテン１２（冷却器８で冷却した低温の冷気流），ミドルエアーカーテン１３（庫内の冷気流），およびアウターエアーカーテン１４（常温空気流）を吹き出し形成して外気熱の庫内侵入を防いでいる。
また、冷却器８（フィン・チューブ形エバポレータ）の蒸発コイル，フィンに生じた着霜の成長に伴いインナーダクト４の冷気通風量，保冷能力が低下した状態になると、除霜運転に切換えて送風ファン７を一旦停止した上で除霜ヒータ１８を通電し、そのヒータ加熱により昇温したダクト内の除霜暖気の熱で冷却器８に付着した霜を溶かして排除すようにしている。
FIG. 3 is a cross-sectional view showing the detailed structure of the blower unit 3. Inside the duct 3a, a duct partition wall 15 laid along the longitudinal direction of the duct, and a vertical duct partition wall arranged before and after the duct partition wall 15. 16, 17 are arranged to partition the inner duct 4, the middle duct 5, and the outer duct 6 from each other. Furthermore, a defrost heater 18 for melting frost generated during the cold insulation operation is provided on the bottom side of the cooler 8 disposed in the inner duct 4.
With the above configuration, the air blower unit 3 of the air curtain device is operated during the picking operation, and the inner air curtain 12 of the inner and outer layers (the low temperature cold air cooled by the cooler 8) is directed toward the open end surface of the refrigerated storage 3. The middle air curtain 13 (cold airflow in the cabinet) and the outer air curtain 14 (room temperature airflow) are blown out to prevent outside air heat from entering the cabinet.
Also, when the cooling air flow rate and the cooling capacity of the inner duct 4 are reduced due to the growth of frost on the evaporation coil and fins of the cooler 8 (fin / tube type evaporator), the air is switched to the defrosting operation to blow air. The fan 7 is temporarily stopped, the defrost heater 18 is energized, and the frost adhering to the cooler 8 is melted and removed by the heat of the defrost warm air in the duct heated by the heater heating.
前記エアーカーテン装置について、送風ユニット３より冷蔵貯蔵庫の開放端面に吹き出すエアーカーテン、特に冷却器８を経由して吹き出すインナーエアーカーテンは高い熱遮蔽性能を確保するためにが乱れのない層流の気流であることが要求される。また、エアーカーテン装置のランニングコスト低減，省エネ化を図る上からもダクト内部の圧力損失を低減し、さらに冷却器８に生じる着霜のムラを抑えてできるだけ少ない消費電力でエアーカーテンの風量確保、および短時間で除霜が行えることが望まれる。
これに対して、前記した従来構造の送風ユニットは、機能，省エネ性能面で次記のような問題点がある。すなわち、
（１）図２に示した構造図から判るように、ダクト３ａの底壁とダクト内のダクト仕切壁１５との間に画成されたインナーダクト４は、その入口端（風上側）と出口端（風下側）が垂直なダクト仕切壁１６，１７で仕切られている。したがって、送風ファン７を経てインナーダクト４に押込み導風される気流は図中の矢印で表すように垂直なダクト仕切壁１６，１７の壁面に突き当たって略直角方向に向きを変えて流れることから、この部分に大きな圧力損失が発生する。このために、送風ファン７の消費電力が増加する。
（２）また、前記した気流の急激な方向転換に伴い、冷却器８を貫流する気流の風速分布にバラツキが生じてダクト仕切壁１５に近い上側の風速が低く，下側の風速は早くなり、この風速分布のバラツキが原因で冷却器の保冷運転中に発生する着霜量にもムラが生じて除霜時間が長引くようになる。そのほか、冷却器８の風下側に延在する仕切壁１６の壁面にも多くの霜が付着するようになる。
（３）さらに、前記した風速分布のバラツキはエアーカーテン吹出口４ａを通じて下向きに吹き出す気流にも影響し、このためにインナーエアーカーテン１２の気流に乱れが生じてその遮熱性能が低下する問題も発生する。
（４）そのほか、除霜運転時には、除霜ヒータ１８の加熱を受けて昇温した除霜暖気は熱対流によって広がり、冷却器８からエアーカーテン吹出口４ａの方に拡散，逸出して除霜熱が逃げやすくなる。このために、前項（２）で述べた冷却器８に生じる着霜量のムラも加わって除霜時間が長引き、それだけエアーカーテン装置の消費電力が増加する問題もある。
Regarding the air curtain device, the air curtain blown from the blower unit 3 to the open end face of the refrigerated storage, particularly the inner air curtain blown through the cooler 8, is a laminar air flow that is not disturbed to ensure high heat shielding performance. It is required to be. In addition, in order to reduce the running cost and energy saving of the air curtain device, the pressure loss inside the duct is reduced, and further, the non-uniform frost formation in the cooler 8 is suppressed, and the air curtain air volume is secured with as little power consumption as possible. It is desirable that defrosting can be performed in a short time.
On the other hand, the above-described conventional blower unit has the following problems in terms of function and energy saving performance. That is,
(1) As can be seen from the structural diagram shown in FIG. 2, the inner duct 4 defined between the bottom wall of the duct 3a and the duct partition wall 15 in the duct has an inlet end (windward side) and an outlet. The ends (leeward side) are partitioned by vertical duct partition walls 16 and 17. Therefore, the airflow pushed into the inner duct 4 through the blower fan 7 strikes the wall surfaces of the vertical duct partition walls 16 and 17 as indicated by the arrows in the figure, and flows in a direction substantially perpendicular to the flow. A large pressure loss occurs in this part. For this reason, the power consumption of the ventilation fan 7 increases.
(2) Also, with the rapid change of direction of the airflow described above, the wind speed distribution of the airflow flowing through the cooler 8 varies, the upper wind speed near the duct partition wall 15 is lower, and the lower wind speed is faster. As a result of this variation in the wind speed distribution, the amount of frost formed during the cold insulation operation of the cooler also becomes uneven and the defrosting time is prolonged. In addition, a lot of frost is attached to the wall surface of the partition wall 16 extending to the leeward side of the cooler 8.
(3) Further, the variation in the wind speed distribution described above also affects the airflow that blows downward through the air curtain outlet 4a, which causes a problem that the airflow of the inner air curtain 12 is disturbed and its heat shielding performance is reduced. appear.
(4) In addition, during the defrosting operation, the defrost warm air heated by the defrost heater 18 is spread by heat convection and diffused and escapes from the cooler 8 toward the air curtain outlet 4a. Heat can escape easily. For this reason, there is a problem that the unevenness of the amount of frost generated in the cooler 8 described in the previous section (2) is added, the defrosting time is prolonged, and the power consumption of the air curtain device is increased accordingly.
この発明は上記の点に鑑みなされたものであり、その目的は送風ユニットのダクト内部に設けたダクト仕切壁に簡易な導風ガイド、遮蔽板を巧みに組み合わせて追加装備することにより、冷却器を経由する胴内通風路の圧力損失を低減し、併せて除霜時間を短縮して高い省エネ効果が発揮できるように改良した冷蔵貯蔵庫のエアーカーテン装置を提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to provide a cooler by adding a simple air guide and a shielding plate to the duct partition wall provided inside the duct of the blower unit. Another object of the present invention is to provide an air curtain device for a refrigerated storage that is improved so as to reduce the pressure loss of the in-body ventilation passage that passes through and to shorten the defrosting time and exhibit a high energy saving effect.
上記目的を達成するために、この発明によれば、ダクトの内部に送風ファン，冷却器，および該冷却器の除霜ヒータを内蔵した送風ユニットを冷蔵貯蔵庫の庫内天井部に設けるとともに、前記ダクトに連ねて冷蔵貯蔵庫の前面側上部には下向きに開口したエアーカーテン吹出口を設け、前記送風ユニットの冷却器を経由してエアーカーテン吹出口から開放端面に向けて冷気流を吹き出すようにした冷蔵貯蔵庫のエアーカーテン装置において、
前記送風ユニットのダクト内部には、冷却器を挟んで風上側の送風ファンとの間に導風ガイドを設けるとともに、風下側にはエアーカーテン吹出口に通じる通風路のコーナー部に導風ガイドを兼ねたコーナー遮蔽板を設ける（請求項１）。
また、除霜運転時にヒータを受けて昇温した除霜暖気が冷却器からエアーカーテン吹出口の方へ拡散，逸出するのを抑制する手段として、前記コーナー遮蔽板に連ねてその流入側端部に、冷却器の端面と対峙する立ち上がり壁部を形成する（請求項２）。
In order to achieve the above object, according to the present invention, a blower unit including a blower fan, a cooler, and a defrosting heater for the cooler provided in a duct is provided in the ceiling of the refrigerator storage, and An air curtain outlet that opens downward is provided in the upper part of the front side of the refrigerated storage in connection with the duct, and a cold air current is blown out from the air curtain outlet toward the open end face via the cooler of the blower unit. In the air curtain device of refrigerated storage,
Inside the duct of the blower unit, a wind guide is provided between the air blower fan on the windward side with a cooler interposed therebetween, and a wind guide is provided at the corner portion of the wind passage leading to the air curtain outlet on the leeward side. A corner shielding plate is also provided (claim 1).
Further, as a means for preventing the defrost warm air heated by receiving the heater during the defrost operation from diffusing and escaping from the cooler toward the air curtain outlet, it is connected to the corner shielding plate and its inflow side end. A rising wall portion facing the end face of the cooler is formed in the portion.
上記のように送風ユニットのダクト内部には、冷却器を挟んで風上側の送風ファンとの間に導風ガイドを設けるとともに、風下側にはエアーカーテン吹出口に通じる通風路のコーナー部に導風ガイドを兼ねたコーナー遮蔽板を設けた構成により、送風ファンから冷却器を経由してエアーカーテン吹出口に至る通風路を流れる気流は、垂直仕切壁によるコーナー部の干渉を受けることなく前記導風ガイド，コーナー遮蔽板の板面に沿って淀みなく導風される。これによりダクト内部の通風路の圧力損失が低減して送風ファンの消費電力を節減できる。
また、前記導風ガイド，コーナー遮蔽板の導風機能によって冷却器を貫流する気流の風速分布も均一化されるので、冷却器に生じる着霜のムラ発生を解消される。さらに、前記コーナー遮蔽板に連ねてその流入側端部に、冷却器と対峙する立ち上がり壁部を形成したことにより、除霜運転時に除霜ヒータの加熱を受けて昇温した除霜暖気は、邪魔板として機能する前記立ち上がり壁部に阻まれて下流側への拡散，逸出が抑えられので、冷却器の除霜時間を短縮してヒータ通電による余分な電力消費を低減できる。これにより、トータル的に冷蔵貯蔵庫の省エネ効果を高めてランニングコストの低減化が図れる。
As described above, inside the duct of the blower unit, a wind guide is provided between the cooler and the blower fan on the windward side, and on the leeward side is led to the corner of the ventilation path leading to the air curtain outlet. Due to the configuration in which the corner shielding plate that also serves as the wind guide is provided, the airflow that flows through the ventilation path from the blower fan to the air curtain outlet through the cooler is not guided by the interference of the corner by the vertical partition wall. The wind is guided along the surface of the wind guide and corner shielding plate without any stagnation. Thereby, the pressure loss of the ventilation path inside a duct reduces, and the power consumption of a ventilation fan can be saved.
Moreover, since the wind speed distribution of the airflow flowing through the cooler is made uniform by the wind guide function of the wind guide and the corner shielding plate, the occurrence of uneven frost formation in the cooler is eliminated. Further, by forming a rising wall portion facing the cooler at the inflow side end portion connected to the corner shielding plate, the defrost warm air heated by the defrost heater during defrost operation is Since diffusion and escape to the downstream side are suppressed by the rising wall portion functioning as a baffle plate, the defrosting time of the cooler can be shortened and extra power consumption due to energization of the heater can be reduced. As a result, the energy saving effect of the refrigerated storage can be enhanced in total and the running cost can be reduced.
以下、この発明の実施の形態を図１に示す実施例に基づいて説明する。なお、実施例の図中で図３に対応する同一部材には同じ符号を付してその説明は省略する。
図示実施例のエアーカーテン装置は、図３に示した従来構造を基本として送風ユニット３のダクト３ａの内部に導風ガイド１９、およびコーナー遮蔽板２０を新たに追加装備した構成になる。
ここで、導風ガイド１９は冷却器８の風上側に配したもので、ダクト３ａの長手方向に沿ってインナーダクト４とミドルダクト５との間を仕切るダクト仕切壁１５の後端とダクト３ａの送風ファン７に近い天井壁との間に跨がって垂直なダクト仕切壁１７の三角コーナーを覆うよう傾斜姿勢に架設されている。
一方、冷却器８の風下側に配したコーナー遮蔽板２０は、エアーカーテン吹出口１４に通じる垂直壁１６とダクト仕切壁１５との間に跨がって両壁間の三角コーナーを覆うように傾斜姿勢に架設されている。また、このコーナー遮蔽板２０に連ねてその流入側端部（冷却器８の出口側）には冷却器８の上部端面（仕切壁１５に近い部分）と間隔を隔てて略垂直姿勢に対峙する立ち上げ壁部２０ａを設けている。なお、前記の導風ガイド１９，およびコーナー遮蔽板２０は、いずれもダクト内部の通風路の幅に対応した横幅寸法に定めている。
Hereinafter, an embodiment of the present invention will be described based on the embodiment shown in FIG. In addition, in the figure of an Example, the same code | symbol is attached | subjected to the same member corresponding to FIG. 3, and the description is abbreviate | omitted.
The air curtain device of the illustrated embodiment has a configuration in which an air guide 19 and a corner shielding plate 20 are additionally provided inside the duct 3a of the blower unit 3 based on the conventional structure shown in FIG.
Here, the air guide 19 is disposed on the windward side of the cooler 8, and the rear end of the duct partition wall 15 that partitions the inner duct 4 and the middle duct 5 along the longitudinal direction of the duct 3a and the duct 3a. It is constructed in an inclined posture so as to cover the triangular corner of the vertical duct partition wall 17 straddling the ceiling wall close to the blower fan 7.
On the other hand, the corner shielding plate 20 disposed on the leeward side of the cooler 8 extends between the vertical wall 16 leading to the air curtain outlet 14 and the duct partition wall 15 so as to cover the triangular corner between both walls. It is built in an inclined position. Further, the corner shielding plate 20 is connected to the inflow side end portion (outlet side of the cooler 8) so as to face the upper end face (portion close to the partition wall 15) of the cooler 8 in a substantially vertical posture. A rising wall portion 20a is provided. Note that each of the air guide 19 and the corner shielding plate 20 has a lateral width corresponding to the width of the ventilation path inside the duct.
上記の構成で、エアーカーテン装置の運転時には、送風ファン７からダクト内部のインナーダクト４を経由してエアーカーテン吹出口４ａに至る導風路に流れる気流は図示矢印で表すように前記の導風ガイド１９，コーナー遮蔽板２０の板面に沿って緩やかに方向を変えながら淀みなく導風されるようになる。これにより、図３の従来構造で問題となっていた通風路のコーナー部に生じる圧力損失を低減できる。また、冷却器８を貫流する気流の風速分布も均一化されて冷却器の蒸発コイル，フィンの着霜ムラが解消され、さらに冷却器８を貫流した冷気流が風下側のダクト仕切壁１５と垂直なダクト仕切壁１６との間のコーナーに淀んでこの仕切壁部分に着霜することも防げる。
また、除霜運転時（送風ファン７は停止）には、除霜ヒータ１８の加熱を受けて昇温したダクト内の除霜暖気が熱対流により冷却器８の内方を上昇しながら蒸発コイルに付着している霜を溶かして除霜する。この場合に図示実施例の構造では、冷却器８の出口側に遮蔽板２０の立ち上がり壁部２０ａが対峙していて冷却器８の出口側端面との間にポケット状の空気溜まり空間を形成している。これにより、除霜暖気が冷却器８からエアーカーテン吹出口４ａの方に拡散して除霜熱が逸出するのを抑制し、ヒータ加熱による除霜熱を冷却器に効率よく与えて徐霜時間の短縮化に貢献できる。
With the above configuration, during operation of the air curtain device, the air flow flowing from the blower fan 7 through the inner duct 4 inside the duct to the air curtain outlet 4a is indicated by the arrows shown in the figure. The air is guided without stagnation while gradually changing the direction along the plate surfaces of the guide 19 and the corner shielding plate 20. Thereby, the pressure loss which arises in the corner part of the ventilation path which became a problem with the conventional structure of FIG. 3 can be reduced. In addition, the wind speed distribution of the airflow flowing through the cooler 8 is made uniform, so that the frosting unevenness of the evaporation coils and fins of the cooler is eliminated, and the cool airflow flowing through the cooler 8 is connected to the duct partition wall 15 on the downwind side. It is also possible to prevent the partition wall portion from frosting in the corner between the vertical duct partition wall 16.
Further, during the defrosting operation (the blower fan 7 is stopped), the defrosting warm air in the duct heated by the defrosting heater 18 rises inward of the cooler 8 by heat convection, and the evaporation coil The frost adhering to is melted and defrosted. In this case, in the structure of the illustrated embodiment, the rising wall 20a of the shielding plate 20 faces the outlet side of the cooler 8, and a pocket-like air pocket space is formed between the outlet side end surface of the cooler 8. ing. Thereby, defrost warm air is suppressed from diffusing from the cooler 8 toward the air curtain outlet 4a and defrost heat is prevented from escaping, and the defrost heat due to heater heating is efficiently given to the cooler to gradually defrost. Contributes to shortening of time.
以上述べたダクト内部での圧力損失の低減，除霜運転時における除霜暖気の逸出抑制により、トータル的にエアーカーテン装置の送風ファン７，および冷却器８の消費電力を節減して冷蔵貯蔵庫のランニングコストの低減化が図れる。
なお、図示実施例はピッキング用冷蔵貯蔵庫に搭載するエアーカーテン装置について述べたが、そのほかにショーケース用冷蔵貯蔵庫のエアーカーテン装置にも同様に実施適用できる。
Reduced pressure loss inside the duct and suppression of escape of defrost warm air during defrost operation as described above, so that the power consumption of the blower fan 7 and cooler 8 of the air curtain device can be reduced and the refrigerated storage The running cost can be reduced.
In the illustrated embodiment, the air curtain device mounted on the refrigerated storage for picking is described. However, the embodiment can be similarly applied to the air curtain device of the refrigerated storage for showcase.
１ 冷蔵貯蔵庫
２ ピッキング用棚装置
３ エアーカーテン装置の送風ユニット
３ａ ダクト
４ インナーダクト
４ａ エアーカーテン吹出口
７ 送風ファン
８ 冷却器
１２ インナーエアーカーテン
１５，１６，１７ ダクト仕切壁
１８ 除霜ヒータ
１９ 導風ガイド
２０ コーナー遮蔽板
２０ａ 立ち上がり壁部
DESCRIPTION OF SYMBOLS 1 Refrigerated storage 2 Picking shelf apparatus 3 Blow unit of air curtain apparatus 3a Duct 4 Inner duct 4a Air curtain outlet 7 Blower fan 8 Cooler 12 Inner air curtains 15, 16, and 17 Duct partition wall 18 Defrost heater 19 Wind guide Guide 20 Corner shielding plate 20a Standing wall
Claims (3)
前記送風ユニットのダクト内部には、冷却器を挟んで風上側の送風ファンとの間に導風ガイドを設けるとともに、風下側にはエアーカーテン吹出口に通じる通風路のコーナー部に導風ガイドを兼ねたコーナー遮蔽板を設けたことを特徴とする冷蔵貯蔵庫のエアーカーテン装置。 This is an air curtain device that blows and forms a cold air curtain on the open end face of a refrigerated storage with the front open, and a blower unit with a blower fan, a cooler, and a defrosting heater for the cooler inside the duct. Provided on the ceiling of the cabinet, and provided with an air curtain outlet opening downward on the front side upper part of the refrigerated storage, connected to the duct, and directed from the air curtain outlet to the open end face via the cooler of the blower unit In the one that blows out a cold air flow,
Inside the duct of the blower unit, a wind guide is provided between the air blower fan on the windward side with a cooler interposed therebetween, and a wind guide is provided at the corner portion of the wind passage leading to the air curtain outlet on the leeward side. An air curtain device for a refrigerated storage, characterized in that a corner shielding plate is also provided.
The air curtain device according to claim 1 or 2, wherein the refrigerated storage is a refrigerated storage for a picking system having a picking shelf device in the storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009105096A JP5381278B2 (en) | 2009-04-23 | 2009-04-23 | Air curtain device for refrigerated storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009105096A JP5381278B2 (en) | 2009-04-23 | 2009-04-23 | Air curtain device for refrigerated storage |
Publications (2)
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| JP2010255903A true JP2010255903A (en) | 2010-11-11 |
| JP5381278B2 JP5381278B2 (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009105096A Expired - Fee Related JP5381278B2 (en) | 2009-04-23 | 2009-04-23 | Air curtain device for refrigerated storage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616645A (en) * | 2017-10-19 | 2018-01-23 | 广东星星制冷设备有限公司 | A kind of annular air curtain showcase |
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|---|---|---|---|---|
| JPH02106568U (en) * | 1989-02-08 | 1990-08-24 | ||
| JPH0375474A (en) * | 1990-06-25 | 1991-03-29 | Sanden Corp | Manufacture of air straightening mechanism for open showcase or the like |
| JPH10122724A (en) * | 1996-10-18 | 1998-05-15 | Orion Mach Co Ltd | Refrigerating structure of condenser for refrigerating storage cabinet |
| JP2009036496A (en) * | 2007-08-03 | 2009-02-19 | Toyo Kanetsu Solutions Kk | Rack for freezing-refrigerating warehouse and operation method of air curtain device |
-
2009
- 2009-04-23 JP JP2009105096A patent/JP5381278B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106568U (en) * | 1989-02-08 | 1990-08-24 | ||
| JPH0375474A (en) * | 1990-06-25 | 1991-03-29 | Sanden Corp | Manufacture of air straightening mechanism for open showcase or the like |
| JPH10122724A (en) * | 1996-10-18 | 1998-05-15 | Orion Mach Co Ltd | Refrigerating structure of condenser for refrigerating storage cabinet |
| JP2009036496A (en) * | 2007-08-03 | 2009-02-19 | Toyo Kanetsu Solutions Kk | Rack for freezing-refrigerating warehouse and operation method of air curtain device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616645A (en) * | 2017-10-19 | 2018-01-23 | 广东星星制冷设备有限公司 | A kind of annular air curtain showcase |
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| JP5381278B2 (en) | 2014-01-08 |
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