JP2644709B2 - Local ventilation system with air supply flow control - Google Patents
Local ventilation system with air supply flow controlInfo
- Publication number
- JP2644709B2 JP2644709B2 JP7288762A JP28876295A JP2644709B2 JP 2644709 B2 JP2644709 B2 JP 2644709B2 JP 7288762 A JP7288762 A JP 7288762A JP 28876295 A JP28876295 A JP 28876295A JP 2644709 B2 JP2644709 B2 JP 2644709B2
- Authority
- JP
- Japan
- Prior art keywords
- airflow
- hood
- filter
- air
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0616—Outlets that have intake openings
Landscapes
- Ventilation (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は給気流制御方式によ
る局所換気装置に関し、詳しくは、一般家庭用や業務用
として使用され、局所換気を目的として厨房などに設置
されたレンジフード換気装置などの給気流制御方式によ
る局所換気装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a local ventilation system using a supply air flow control system, and more particularly to a range hood ventilation system used for general home use or business use and installed in a kitchen or the like for local ventilation. The present invention relates to a local ventilation device using a supply air flow control method.
【０００２】[0002]
【従来の技術】一般家庭用や業務用として使用され、局
所換気を目的として厨房などに設置されるレンジフード
換気装置は、レンジ調理器から発生する油分を含んだ煙
や蒸気からなる汚染空気を排出する手段として賞用され
ている。2. Description of the Related Art A range hood ventilation device, which is used for general household and business purposes and installed in a kitchen or the like for the purpose of local ventilation, removes contaminated air consisting of smoke and steam containing oil generated from a range cooker. It has been awarded as a means of discharging.
【０００３】このレンジフード換気装置は、図１０及び
図１１に示すように厨房などに設置されたレンジ調理器
１（図１２及び図１３参照）の上方に配置され、そのレ
ンジ調理器１に向けて下方に開口する箱形フード２から
なり、そのフード２にフィルタ３及び集煙ガイド４を装
着した構造のものが一般的である。[0003] This range hood ventilator is arranged above a range cooker 1 (see Figs. 12 and 13) installed in a kitchen or the like as shown in Figs. In general, the hood 2 has a structure in which a filter 3 and a smoke collection guide 4 are attached to the hood 2.
【０００４】具体的に、前記フード２は、吐出側上部空
間５と吸込側下部空間６とに上下方向で仕切る区画壁７
を有し、前記吐出側上部空間５を形成するフード２の上
端部にファン８が配設されている。また、前記区画壁７
の一部に形成された開口部にフィルタ３が装着され、そ
の開口部から拡開しながら延びてフード２の周壁面に接
合した集煙ガイド４が設けられ、その集煙ガイド４とフ
ード２の下部周壁面により吸込側下部空間６が形成され
る。尚、吐出側上部空間５のファン８が配置された部位
には排気ダクト９が接続されて外部と連通する。[0004] Specifically, the hood 2 has a partition wall 7 vertically partitioning a discharge-side upper space 5 and a suction-side lower space 6.
And a fan 8 is provided at the upper end of the hood 2 forming the discharge-side upper space 5. In addition, the partition wall 7
A filter 3 is attached to an opening formed in a part of the hood 2, and a smoke collection guide 4 extending from the opening and expanding and joined to a peripheral wall of the hood 2 is provided. Defines a suction-side lower space 6. An exhaust duct 9 is connected to a portion of the discharge-side upper space 5 where the fan 8 is arranged, and communicates with the outside.
【０００５】図１２及び図１３に示すように前記レンジ
調理器１での加熱調理により発生して上昇する煙や蒸気
からなる汚染空気ａをフード２の上端部にあるファン８
の回転により吸込側下部空間６に集煙し、前記汚染空気
ａに含まれている煤やオイルミスト等の汚染媒体をフィ
ルタ３でもって凝着捕集した上で、その浄化した空気を
排気ダクト９から外部に排出するようにしている。[0005] As shown in FIGS. 12 and 13, contaminated air “a” consisting of smoke and steam generated by heating cooking in the range cooker 1 is supplied to a fan 8 at the upper end of the hood 2.
The smoke is collected in the suction side lower space 6 by the rotation of the contaminant, and the polluted medium such as soot and oil mist contained in the contaminated air a is adhered and collected by the filter 3 and the purified air is discharged into the exhaust duct. 9 to the outside.
【０００６】[0006]
【発明が解決しようとする課題】ところで、レンジ調理
器１での加熱調理により発生する汚染空気ａは、前記レ
ンジ調理器１の熱量に比例して発生量、動粘性及び速度
が増大し勢いよく上昇する。この汚染空気ａをフィルタ
３及びファン８で効率よく集煙排気するには、その汚染
空気ａの発生量に対する排風量などのファン機能が要求
される。By the way, the amount of contaminated air a generated by heating cooking in the microwave cooker 1 increases in kinetic viscosity and speed in proportion to the amount of heat of the microwave cooker 1, and vigorously increases. To rise. In order to efficiently collect and exhaust the contaminated air a with the filter 3 and the fan 8, a fan function such as the amount of exhaust air with respect to the amount of the contaminated air a is required.
【０００７】一般的に、前記フィルタ３は優れた集煙及
び捕集機能を必要とするため、適正な汚染空気ａの集煙
効率と汚染媒体の捕集効率を確保しなければならない。
仮に、適正な集煙効率が得られないとすると、汚染空気
ａを確実に集煙することが困難となる。In general, the filter 3 needs to have an excellent function of collecting and collecting smoke, and therefore, it is necessary to ensure an appropriate smoke collection efficiency of the contaminated air a and a collection efficiency of the contaminated medium.
If proper smoke collection efficiency cannot be obtained, it becomes difficult to reliably collect the contaminated air a.
【０００８】フード２の吸込側下部空間６に集煙される
汚染空気ａはファン８の吐出能力に従って一定の流れと
なるが、前記吸込側下部空間６が集煙ガイド４とそれよ
り下方のフード周壁面とで規制されているため、吸込側
下部空間６で遅い定常流が生じてそれが抵抗となり、吸
込側下部空間６で上昇しようとする汚染空気ａのスムー
ズな流れを阻み、その汚染空気ａの流れが乱れてその一
部がフード４の下方開口端から外部に散逸して厨房内に
汚染空気ａが充満することになる（図１２及び図１３参
照）。The contaminated air a collected in the lower space 6 on the suction side of the hood 2 has a constant flow in accordance with the discharge capacity of the fan 8. Since the flow is regulated by the peripheral wall surface, a slow steady flow is generated in the suction-side lower space 6, which becomes a resistance, and prevents the smooth flow of the contaminated air a going to rise in the suction-side lower space 6. The flow of “a” is disturbed, and a part of the “a” is scattered to the outside from the lower opening end of the hood 4 and the inside of the kitchen is filled with the contaminated air “a” (see FIGS. 12 and 13).
【０００９】また、フィルタ３の集煙効率を向上させよ
うとして、ファン８の回転数を上げたとしても、ファン
８からの発生音が増大して騒音になると共に、厨房を含
む室内の清浄な空気までも多量に吸引して外部に排出す
ることになり、室内の冷暖房効率を低下させる原因とな
り、エネルギーの浪費となって空気調和を乱し生活環境
を破壊して大きな経済損失となる。Further, even if the number of revolutions of the fan 8 is increased in order to improve the smoke collection efficiency of the filter 3, the noise generated from the fan 8 is increased and the noise is generated. A large amount of air is also sucked and discharged to the outside, which causes a decrease in indoor cooling and heating efficiency, wastes energy, disrupts air conditioning, destroys a living environment, and causes a great economic loss.
【００１０】[0010]
【００１１】[0011]
【課題を解決するための手段】本発明は、汚染空気発生
源と対向させて開口するように配置された箱形フード内
に、吸込フィルタとその吸込フィルタの上方へ延びて屋
外と連通する吐出槽と吸込フィルタから下方へ拡開しな
がら延びる集煙ガイドとを配置し、前記集煙ガイドの下
方周縁部をフードの下方開口端に近接させてそのフード
の下方開口端との間に環状隙間を形成し、汚染空気発生
源から上昇してくる汚染空気を囲繞する誘導気流を前記
環状隙間から微速で吐出させる給気流制御方式による局
所換気装置であって、前記箱形フード内の上部空間で吐
出槽の外周に形成された気流調整槽にその気流調整槽と
連通して外気に開放した給気ダクトを設け、その給気ダ
クトからの給気流を受け止めて拡散させる第１の隔壁フ
ィルタを前記給気ダクトの開口部と対向させて前記気流
調整槽に配置し、前記箱形フード内の下部で集煙ガイド
の外周に形成された定常流槽と前記気流調整槽との間
に、前記第１の隔壁フィルタにより気流調整された第１
の拡散気流を更に拡散させる第２の隔壁フィルタを配置
し、その第２の隔壁フィルタにより定常流化された第２
の拡散気流を前記環状隙間から微速で吐出される誘導気
流としたことを特徴とする。SUMMARY OF THE INVENTION According to the present invention , a suction filter and a discharge extending above the suction filter and communicating with the outside are provided in a box-shaped hood arranged so as to face a source of contaminated air. A tank and a smoke collection guide extending downward and expanding from the suction filter are disposed, and a lower peripheral edge of the smoke collection guide is brought close to a lower opening end of the hood, and an annular gap is formed between the lower edge of the hood and the lower opening end. Forming a local ventilation device by a supply air flow control system that discharges the induced airflow surrounding the contaminated air rising from the contaminated air generation source at a very low speed from the annular gap, and in the upper space in the box-shaped hood. An airflow adjustment tank formed on the outer periphery of the discharge tank is provided with an air supply duct that communicates with the airflow adjustment tank and is open to the outside air. The first partition filter that receives and diffuses the airflow from the air supply duct is provided as the first filter. air supply The first air flow adjusting tank is disposed in the air flow adjusting tank so as to face the opening of the airflow control tank, and between the steady flow tank and the air flow adjusting tank formed on the outer periphery of the smoke collection guide in the lower part of the box-shaped hood. 1st air flow adjusted by partition filter
A second partition filter for further diffusing the diffused airflow is disposed, and the second partition filter that has been made to flow steadily by the second partition filter is disposed.
Wherein the diffused airflow is an induced airflow discharged at a very low speed from the annular gap.
【００１２】[0012]
【発明の実施の形態】本発明に係る局所換気装置をレン
ジフード換気装置に適用した実施形態を図１乃至図９に
示して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a local ventilation device according to the present invention is applied to a range hood ventilation device will be described with reference to FIGS.
【００１３】図１乃至図３に示す実施形態のレンジフー
ド換気装置は、厨房などに設置された汚染空気Ａの発生
源であるレンジ調理器１１（図４及び図５参照）の上方
に対向配置され、そのレンジ調理器１１に向けて下方に
開口する箱形フード１２からなり、そのフード１２内に
吸込フィルタ１３及び集煙ガイド１４を収納した構造を
有する。前記フード１２は、吐出側の上部空間１５と吸
込側の下部空間１６とに上下方向で仕切る区画壁１７を
有し、前記上部空間１５を形成するフード１２の上端部
にファン１８が配設され、また、前記区画壁１７の一部
に形成された開口部に吸込フィルタ１３が装着される。The range hood ventilator of the embodiment shown in FIGS. 1 to 3 is opposed to a range cooker 11 (see FIGS. 4 and 5) which is a source of the contaminated air A installed in a kitchen or the like. It has a box-shaped hood 12 that opens downward toward the range cooker 11, and has a structure in which the suction filter 13 and the smoke collection guide 14 are housed in the hood 12. The hood 12 has a partition wall 17 that vertically partitions a discharge-side upper space 15 and a suction-side lower space 16, and a fan 18 is disposed at an upper end of the hood 12 that forms the upper space 15. The suction filter 13 is mounted on an opening formed in a part of the partition wall 17.
【００１４】本発明の特徴は、前記区画壁１７の一部に
形成された開口部から下方へ拡開しながら延びる集煙ガ
イド１４を設け、その集煙ガイド１４の下方周縁部をフ
ード１２の下方開口端に近接させてそのフード１２の下
方開口端との間に、汚染空気発生源であるレンジ調理器
１１から上昇してくる汚染空気Ａを囲繞する誘導気流Ｂ
を微速で吐出させる環状隙間１９を形成したことにあ
る。この環状隙間１９は、集煙ガイド１４の下方周縁部
とフード１２の下方開口端との間の、例えば周囲８箇所
にスペーサ２０を介在させることにより確保される。A feature of the present invention is to provide a smoke collection guide 14 extending downward while expanding from an opening formed in a part of the partition wall 17, and to provide a lower peripheral portion of the smoke collection guide 14 to the hood 12. The induction airflow B surrounding the contaminated air A rising from the range cooker 11, which is a contaminated air generation source, between the lower open end of the hood 12 and the airflow B close to the lower open end.
Is formed at an extremely low speed. The annular gap 19 is ensured by interposing a spacer 20 at, for example, eight places around the lower peripheral portion of the smoke collection guide 14 and the lower opening end of the hood 12.
【００１５】この環状隙間１９の開口幅寸法は、一例と
して、フード１２が縦５５０ｍｍ、横６００ｍｍ、高さ
３７０ｍｍで、吸込フィルタ１３が縦２２０ｍｍ、横３
１０ｍｍのものを使用した場合、１０ｍｍ程度が好適で
あり、前記フード１２の大きさ等の諸条件に応じて適宜
設計変更することが可能である。As an example, the opening width of the annular gap 19 is such that the hood 12 is 550 mm long, 600 mm wide and 370 mm high, and the suction filter 13 is 220 mm long and 3 mm wide.
In the case of using a 10 mm one, it is preferably about 10 mm, and the design can be changed as appropriate according to various conditions such as the size of the hood 12.
【００１６】また、前記集煙ガイド１４の拡開する傾斜
角度についても、その傾斜角度に応じて集煙ガイド１４
より形成される下部空間１６の容積が変わるので、適正
な下部空間１６が得られるように前記集煙ガイド１４の
傾斜角度が選定され、諸条件に応じて適宜設計変更する
ことが可能である。Also, the angle at which the smoke collection guide 14 expands depends on the inclination angle.
Since the volume of the lower space 16 thus formed changes, the inclination angle of the smoke collection guide 14 is selected so that an appropriate lower space 16 can be obtained, and the design can be appropriately changed according to various conditions.
【００１７】尚、前記フード１２の上端部のファン１８
が配置された部位には排気ダクト２１が接続されて屋外
と連通する。このファン１８の取り付け位置は任意であ
り、また、前記ファン１８自体もフード１２の上端部に
必ずしも設置する必要はなく、前記排気ダクト２１が屋
外に開放する側でフード１２から離隔した位置に設置す
ることも可能で、このようにすれば、ファン１８の回転
による騒音を抑制することが実現できる。The fan 18 at the upper end of the hood 12
The exhaust duct 21 is connected to the portion where is disposed, and communicates with the outside. The mounting position of the fan 18 is arbitrary, and the fan 18 itself does not necessarily need to be installed at the upper end of the hood 12, but is installed at a position separated from the hood 12 on the side where the exhaust duct 21 is open to the outdoors. It is also possible to suppress noise caused by the rotation of the fan 18.
【００１８】また、前記フード１２の区画壁１７より下
方に位置する周壁面には給気ダクト２２が接続されて屋
外と連通する。この給気ダクト２２の取り付け位置も、
前記排気ダクト２１の場合と同様に任意である。また、
前記環状隙間１９から吐出する誘導気流Ｂは、後述する
ように微弱なものでよいため、屋外とフード１２とを給
気ダクト２２で連通させるだけで所望の誘導気流Ｂが得
られることになる。その場合、ファン１８の吐出による
負圧と外気圧との圧差による自然給気を行なうようにし
たものである。An air supply duct 22 is connected to a peripheral wall located below the partition wall 17 of the hood 12, and communicates with the outside. The installation position of this air supply duct 22 is also
It is optional as in the case of the exhaust duct 21. Also,
Since the guide airflow B discharged from the annular gap 19 may be weak as described later, a desired guide airflow B can be obtained only by connecting the outside and the hood 12 with the air supply duct 22. In this case, natural air supply is performed by the pressure difference between the negative pressure due to the discharge of the fan 18 and the outside air pressure.
【００１９】上記構成からなるレンジフード換気装置で
は、図４及び図５に示すようにフード１２の上端部にあ
るファン１８の回転により、そのファン１８の吐出能力
でもって上部空間１５が負圧状態となる一方、下部空間
１６が大気圧状態となっているため、この上部空間１５
での負圧と下部空間１６での大気圧との圧差から、レン
ジ調理器１１での加熱調理により発生して上昇する煙や
蒸気からなる汚染空気Ａを下部空間１６に集煙し、前記
汚染空気Ａに含まれている煤やオイルミスト等の汚染媒
体を吸込フィルタ１３でもって凝着捕集した上で、その
浄化した空気を排気ダクト２１を介して外部に排出す
る。In the range hood ventilator having the above-described configuration, as shown in FIGS. 4 and 5, the rotation of the fan 18 at the upper end of the hood 12 causes the upper space 15 to be in a negative pressure state by the discharge capacity of the fan 18. On the other hand, since the lower space 16 is at atmospheric pressure,
From the pressure difference between the negative pressure in the oven and the atmospheric pressure in the lower space 16, the contaminated air A consisting of smoke and steam generated and heated by the cooking in the microwave cooker 11 is collected in the lower space 16, and the contamination is performed. The contaminated medium such as soot and oil mist contained in the air A is adhered and collected by the suction filter 13, and the purified air is discharged to the outside via the exhaust duct 21.
【００２０】この時、前記集煙ガイド１４の下方周縁部
とフード１２の下方開口端との間に形成された環状隙間
１９から吐出された誘導気流Ｂがレンジ調理器１１から
上昇してくる汚染空気Ａを囲繞する。そして、前記汚染
空気Ａと相互に接近する誘導気流Ｂがその汚染空気Ａと
合流すると、前記誘導気流Ｂが汚染空気Ａに巻き込まれ
るようにして吸引される。このように前記環状隙間１９
から吐出された誘導気流Ｂが汚染空気Ａに巻き込まれな
がら吸引されることにより、その誘導気流Ｂは汚染空気
Ａの吸引を促進してその汚染空気Ａを散逸させることな
く確実に集煙し、かつ、室内の清浄な空気が吸引される
ことを阻止する。At this time, the induction airflow B discharged from the annular gap 19 formed between the lower peripheral portion of the smoke collecting guide 14 and the lower opening end of the hood 12 causes contamination rising from the range cooker 11. Surround air A. Then, when the induced airflow B approaching the contaminated air A merges with the contaminated air A, the induced airflow B is sucked so as to be involved in the contaminated air A. Thus, the annular gap 19
Is sucked while being caught in the contaminated air A, the induced airflow B promotes the suction of the contaminated air A, and reliably collects the smoke without dissipating the contaminated air A. In addition, it prevents the indoor clean air from being sucked.
【００２１】この誘導気流Ｂによる汚染空気Ａの囲繞に
より、フード１２内で集煙ガイド１４により形成された
下部空間１６が延在され、前記誘導気流Ｂにより囲まれ
た下部空間２３が形成されることになる。この誘導気流
Ｂにより形成された下部空間２３は、従来のようにフー
ド２（図１２及び図１３参照）の周壁面に規制されるこ
とがないので、その下部空間１６，２３で遅い定常流が
発生することなく、その定常流が抵抗となることはない
ので、後述するように吸込フィルタ１３で所望の吸引速
度圧を得ることができる。By the surrounding of the contaminated air A by the guide airflow B, the lower space 16 formed by the smoke collecting guide 14 in the hood 12 is extended, and the lower space 23 surrounded by the guide airflow B is formed. Will be. Since the lower space 23 formed by the induced airflow B is not restricted by the peripheral wall surface of the hood 2 (see FIGS. 12 and 13) as in the related art, a slow steady flow is generated in the lower spaces 16 and 23. Since the steady flow does not become a resistance without being generated, a desired suction speed pressure can be obtained by the suction filter 13 as described later.
【００２２】以下、本発明のレンジフード換気装置を使
用した場合において、具体的な数値を挙げながら局所換
気のメカニズムを詳述する。Hereinafter, the mechanism of local ventilation will be described in detail with specific numerical values when the range hood ventilation device of the present invention is used.
【００２３】レンジ調理器１１から発生する汚染空気Ａ
の上昇速度を０．７ｍ／ｓとし、ファン１８の吐出量
（例えば、Ｌ：３００ｍ3 ／ｈ，Ｈ：５００ｍ3 ／ｈ）
に対して、吸込フィルタ１３として本出願人が先に提案
した吸込装置（特願平５−３１１４７２号）を使用す
る。尚、この吸込フィルタ１３（吸込装置）を使用した
場合には、フード１２の上部空間１５と下部空間１６と
の開口部での流路面積が１００ｃｍ2 となる。Contaminated air A generated from the cooker 11
And the discharge rate of the fan 18 (for example, L: 300 m 3 / h, H: 500 m 3 / h).
On the other hand, a suction device (Japanese Patent Application No. 5-31472) previously proposed by the present applicant is used as the suction filter 13. When the suction filter 13 (suction device) is used, the flow passage area at the opening of the upper space 15 and the lower space 16 of the hood 12 is 100 cm 2 .
【００２４】前記ファン１８の回転による吐出でもって
フード１２の上部空間１５が負圧状態となる一方、下部
空間１６が大気圧状態となっているため、この上部空間
１５での負圧と下部空間１６での大気圧との圧差から、
前記吸込フィルタ１３（吸込装置）では吸引速度圧（例
えば、Ｌ：０．８３３ｍ／ｓ，Ｈ：１．３９ｍ／ｓ）が
発生する。この時、吐出速度（例えば、Ｌ：０．２５ｍ
／ｓ，Ｈ：０．４ｍ／ｓ）を有する誘導気流Ｂが、集煙
ガイド１２の下方周縁部とフード１４の下方開口端との
間の環状隙間１９から微速で吐出される。The upper space 15 of the hood 12 is in a negative pressure state due to the discharge by the rotation of the fan 18, while the lower space 16 is in the atmospheric pressure state. From the pressure difference from the atmospheric pressure at 16,
The suction filter 13 (suction device) generates a suction speed pressure (for example, L: 0.833 m / s, H: 1.39 m / s). At this time, the discharge speed (for example, L: 0.25 m
/ S, H: 0.4 m / s) is discharged at a very low speed from the annular gap 19 between the lower peripheral edge of the smoke collection guide 12 and the lower opening end of the hood 14.
【００２５】レンジ調理器１１で発生して上昇する汚染
空気Ａは、前記吸込フィルタ１３での前述した吸引速度
圧（例えば、Ｌ：０．８３３ｍ／ｓ，Ｈ：１．３９ｍ／
ｓ）で集煙ガイド１４でもって集煙される。一方、前記
環状隙間１９から吐出された誘導気流Ｂは、汚染空気Ａ
を囲繞してその汚染空気Ａに巻き込まれることにより、
汚染空気Ａの吸引を促進してその汚染空気Ａを散逸させ
ることなく確実に集煙し、かつ、室内の清浄な空気が吸
引されることを阻止する。The contaminated air A generated by the range cooker 11 and rising is supplied to the suction filter 13 at the suction speed pressure (for example, L: 0.833 m / s, H: 1.39 m /).
In s), smoke is collected by the smoke collection guide 14. On the other hand, the induced airflow B discharged from the annular gap 19 is contaminated air A
Is surrounded by the contaminated air A,
The suction of the contaminated air A is promoted to surely collect the smoke without dissipating the contaminated air A, and prevent the clean air in the room from being sucked.
【００２６】この時、前記吸込フィルタ１３（吸込装
置）でのジグザグ状流路を前述した吸引速度圧（例え
ば、Ｌ：０．８３３ｍ／ｓ，Ｈ：１．３９ｍ／ｓ）でも
って通過する汚染空気Ａに含まれている煤やオイルミス
ト等の汚染媒体は、吸込フィルタ１３（吸込装置）での
流路変化と汚染媒体Ａの慣性からそのフィルタ表面に凝
着捕集され、浄化した空気が排気ダクト２１を介して外
部に排出される。At this time, contamination passing through the zigzag flow path in the suction filter 13 (suction device) at the suction speed pressure (for example, L: 0.833 m / s, H: 1.39 m / s). The contaminated medium such as soot and oil mist contained in the air A is adhered and collected on the filter surface due to the flow path change in the suction filter 13 (suction device) and the inertia of the contaminated medium A, and purified air is collected. It is discharged to the outside via the exhaust duct 21.
【００２７】次に、本発明の他の実施形態としての局所
換気装置を図６及び図７に示す。この実施形態の局所換
気装置は、レンジ調理器１１と対向させて開口するよう
に配置された箱形フード２５からなり、そのフード２５
内に吸込フィルタ２６及び集煙ガイド２７を収納した構
造を有する。その吸込フィルタ２６の上方には筒状の区
画壁２８が延設されており、その区画壁２８により、フ
ード２５の上部空間２９を吸込フィルタ２６上方の吐出
槽３０と、フード２５との間で区画壁２８を囲繞する気
流調整槽３１とに仕切る。前記フード２５の吐出槽３０
と対応する部位にはファン２４が配設されて吐出槽３０
は屋外と連通する。Next, a local ventilation device as another embodiment of the present invention is shown in FIGS. The local ventilation device according to this embodiment includes a box-shaped hood 25 that is arranged so as to face and open with the range cooker 11.
It has a structure in which a suction filter 26 and a smoke collection guide 27 are housed. A cylindrical partition wall 28 extends above the suction filter 26, and the partition wall 28 allows the upper space 29 of the hood 25 to be interposed between the discharge tank 30 above the suction filter 26 and the hood 25. It is partitioned into an airflow adjusting tank 31 surrounding the partition wall 28. Discharge tank 30 of the hood 25
A fan 24 is provided at a portion corresponding to
Communicates with the outdoors.
【００２８】一方、吸込フィルタ２６の下方には、その
吸込フィルタ２６から下方へ拡開しながら延びる集煙ガ
イド２７を設け、前述した実施形態の場合と同様、その
集煙ガイド２７の下方周縁部をフード２５の下方開口端
に近接させてそのフード２５の下方開口端との間に、レ
ンジ調理器１１から上昇してくる汚染空気Ａを囲繞する
誘導気流Ｂ’（後述）を微速で吐出させる環状隙間３３
を形成する。On the other hand, below the suction filter 26, there is provided a smoke collection guide 27 which extends while expanding downward from the suction filter 26. As in the case of the above-described embodiment, a lower peripheral portion of the smoke collection guide 27 is provided. Is brought close to the lower opening end of the hood 25, and a guide airflow B ′ (described later) surrounding the contaminated air A rising from the range cooker 11 is discharged at a very low speed between the lower opening end of the hood 25 and the hood 25. Annular gap 33
To form
【００２９】この実施形態では、フード２５の気流調整
槽３１と連通して外気に開放した給気ダクト３４を箱形
フード２５の天板部３５に設ける（図７参照）。また、
その給気ダクト３４からの給気流ａを受け止めて拡散さ
せる第１の隔壁フィルタ３６を給気ダクト３４の開口部
と対向させてフード２５の気流調整槽３１に配置する。
更に、前記フード２５の気流調整槽３１と集煙ガイド２
７の外周に位置する定常流槽３２とを仕切る吸込フィル
タ２６の周辺部位に、第１の隔壁フィルタ３６による拡
散気流ｂを更に拡散させる第２の隔壁フィルタ３７を配
置する。尚、前述した第１及び第２の隔壁フィルタ３
６，３７には、例えば、２〜３枚のラスフィルタを重ね
合わせて使用することが可能である。In this embodiment, an air supply duct 34 which communicates with the air flow regulating tank 31 of the hood 25 and is open to the outside air is provided on the top plate 35 of the box-shaped hood 25 (see FIG. 7). Also,
The first partition filter 36 that receives and diffuses the supply air flow a from the air supply duct 34 is disposed in the air flow adjustment tank 31 of the hood 25 so as to face the opening of the air supply duct 34.
Further, the air flow adjusting tank 31 of the hood 25 and the smoke collection guide 2
A second partition filter 37 for further diffusing the diffused airflow b by the first partition filter 36 is disposed at a peripheral portion of the suction filter 26 that partitions the stationary flow tank 32 located on the outer periphery of the filter 7. The first and second partition filters 3 described above are used.
For example, two or three lath filters can be used in layers 6 and 37 in an overlapping manner.
【００３０】この実施形態の局所換気装置では、給気ダ
クト３４からの給気流ａは、まず、第１の隔壁フィルタ
３６で受け止められ、その一部が第１の隔壁フィルタ３
６を通過するが、第１の隔壁フィルタ３６が抵抗となっ
て、その大部分がフード２５の上部空間２９の中央部に
ある区画壁２８を囲繞するように気流調整槽３１で横方
向に拡散してその方向性が失われる。この第１の隔壁フ
ィルタ３６により気流調整された第１の拡散気流ｂは、
第２の隔壁フィルタ３７が抵抗となって、その第２の隔
壁フィルタ３７の通過により、フード２５と集煙ガイド
２７との間の定常流槽３２で更に拡散してその方向性が
失われる。このようにして第２の隔壁フィルタ３７によ
り定常流化された第２の拡散気流ｃは、集煙ガイド２７
とフード２５の下方周縁部との間の環状隙間３３から誘
導気流Ｂ’として微速で吐出する。In the local ventilation device of this embodiment, the supply air flow a from the air supply duct 34 is first received by the first partition filter 36, and a part thereof is supplied to the first partition filter 3.
6, the first partition filter 36 acts as a resistance and diffuses in the lateral direction in the airflow regulating tank 31 so that most of the first partition filter 36 surrounds the partition wall 28 in the center of the upper space 29 of the hood 25. And that direction is lost. The first diffusion airflow b whose airflow has been adjusted by the first partition filter 36 is:
The second bulkhead filter 37 becomes a resistance, and further passes through the second bulkhead filter 37 to further diffuse in the steady flow tank 32 between the hood 25 and the smoke collection guide 27 and lose its directionality. In this way, the second diffused airflow c that has been made to flow constantly by the second partition filter 37 is supplied to the smoke collection guide 27.
The air is discharged at a very low speed as an induced airflow B ′ from an annular gap 33 between the hood 25 and the lower peripheral portion of the hood 25.
【００３１】この実施形態による局所換気装置では、レ
ンジフード換気装置の周辺、即ち、フード２５とレンジ
調理器１１間の室内空間における屋外との気圧差が不安
定で変動する状態にあっても、第１の隔壁フィルタによ
る気流調整及び第２の隔壁フィルタによる定常流化でも
って環状隙間３３から吐出される誘導気流Ｂ’を給気流
制御してレンジフード換気装置の周辺の気圧差と融合す
るように微速で吐出され、レンジ調理器１１から上昇し
てくる汚染空気Ａを囲繞し、その汚染空気Ａに巻き込ま
れるようにして吸引され、その汚染空気Ａを散逸させる
ことなく確実に集煙し、かつ、室内の清浄な空気が吸引
されることを阻止する。In the local ventilation device according to this embodiment, even if the air pressure difference between the surroundings of the range hood ventilation device, that is, the indoor space between the hood 25 and the range cooker 11 is unstable and fluctuates, The induction airflow B ′ discharged from the annular gap 33 is controlled by the airflow adjustment by the first partition wall filter and the steady flow by the second partition wall filter so as to fuse with the pressure difference around the range hood ventilation device. At a very low speed, surrounds the contaminated air A rising from the range cooker 11, is sucked in as it is caught in the contaminated air A, and reliably collects smoke without dissipating the contaminated air A, In addition, it prevents the indoor clean air from being sucked.
【００３２】この実施形態の局所換気装置は、給気流ａ
をフード２５内に供給する給気ダクト３４をそのフード
２５の天板部３５に設けたものであるが、これ以外に
も、本発明は、図８及び図９に示すように給気ダクト３
８をフード２５の側板部３９に設けた構造のものにも適
用可能である。The local ventilation device of this embodiment has a supply air flow a
8 is provided in the top plate 35 of the hood 25. In addition to this, the present invention also provides an air supply duct 3 as shown in FIGS.
8 can also be applied to the structure in which the side plate 39 of the hood 25 is provided.
【００３３】この実施形態の局所換気装置が、前述した
図６及び図７の局所換気装置と異なる点は、給気流ａを
フード２５内に供給する給気ダクト３８をそのフード２
５の側板部３９に設けたことに伴う第１の隔壁フィルタ
４０の取り付け位置である。即ち、給気ダクト３８から
の給気流ａを受け止めて拡散させる第１の隔壁フィルタ
４０を給気ダクト３８の開口部と対向させてフード２５
の気流調整槽３１に配置するが、給気流ａの流入方向に
対して下端部が開口部に近接し、上端部が開口部に離隔
するように傾斜配置する。The local ventilation device of this embodiment is different from the above-described local ventilation device of FIGS. 6 and 7 in that an air supply duct 38 for supplying an air supply flow a into the hood 25 is provided in the hood 2.
5 is a mounting position of the first partition wall filter 40 associated with the provision of the first side wall 39. That is, the first partition wall filter 40 that receives and diffuses the supply air flow a from the air supply duct 38 faces the opening of the air supply duct 38 so as to face the hood 25.
Is arranged in the airflow adjusting tank 31 in such a manner that the lower end is close to the opening and the upper end is separated from the opening with respect to the inflow direction of the supply air flow a.
【００３４】この場合、給気ダクト３８からの給気流ａ
は、まず、第１の隔壁フィルタ４０で受け止められ、そ
の一部が第１の隔壁フィルタ４０を通過するが、第１の
隔壁フィルタ４０が抵抗となって、その大部分がフード
２５の上部空間２９の中央部にある区画壁２８を囲繞す
るように気流調整槽３１で横方向に拡散して方向性が失
われる。尚、この時、第１の隔壁フィルタ４０を傾斜配
置しているので、その下方に位置する第２の隔壁フィル
タ３７へ向けて直接的に進行することを可及的に抑制す
ることができ、第２の隔壁フィルタ３７による気流の拡
散性を良好なものとする。この第１の隔壁フィルタ４０
により気流調整された第１の拡散気流ｂは、第２の隔壁
フィルタ３７が抵抗となって、その第２の隔壁フィルタ
３７の通過により、フード２５と集煙ガイド２７との間
の定常流槽３２で更に拡散してその方向性が失われる。
このようにして第２の隔壁フィルタ３７により定常流化
された第２の拡散気流ｃは、集煙ガイド２７とフード２
５の下方周縁部との間の環状隙間３３から誘導気流Ｂ’
として微速で吐出する。In this case, the supply air flow a from the air supply duct 38
Is first received by the first partition filter 40, and a part of the first partition filter 40 passes through the first partition filter 40, but the first partition filter 40 becomes a resistance, and most of the upper space of the hood 25 29 is diffused laterally in the airflow adjusting tank 31 so as to surround the partition wall 28 at the central portion of 29, and the directionality is lost. At this time, since the first partition filter 40 is arranged in an inclined manner, it is possible to suppress as much as possible to directly proceed toward the second partition filter 37 located below the first partition filter 40, The diffusivity of the airflow by the second partition filter 37 is improved. This first partition filter 40
The first diffused airflow b whose airflow has been adjusted by the second partition filter 37 acts as a resistance, and passes through the second partition filter 37 so that a steady flow tank between the hood 25 and the smoke collection guide 27 is formed. At 32, it diffuses further and loses its directionality.
In this way, the second diffused airflow c that has been made to flow constantly by the second partition filter 37 is supplied to the smoke collection guide 27 and the hood 2.
5 from the annular gap 33 between the lower peripheral edge and the lower peripheral edge.
And discharge at a very low speed.
【００３５】この実施形態の局所換気装置でも、前述し
た実施形態の場合と同様、レンジフード換気装置の周辺
における屋外との気圧差が不安定で変動する状態にあっ
ても、第１の隔壁フィルタによる気流調整及び第２の隔
壁フィルタによる定常流化でもって環状隙間３３から吐
出される誘導気流Ｂ’を給気流制御してレンジフード換
気装置の周辺の気圧差と融合するように微速で吐出さ
れ、レンジ調理器１１から上昇してくる汚染空気Ａを囲
繞し、その汚染空気Ａに巻き込まれるようにして吸引さ
れ、その汚染空気Ａを散逸させることなく確実に集煙
し、かつ、室内の清浄な空気が吸引されることを阻止す
る。In the local ventilator of this embodiment, as in the case of the above-described embodiment, even if the pressure difference between the outside of the range hood ventilator and the outside is unstable and fluctuates, the first partition filter can be used. The induction airflow B ′ discharged from the annular gap 33 is controlled by the supply airflow by the airflow adjustment by the airflow control and the steady flow by the second partition filter, and the airflow is discharged at a very low speed so as to fuse with the pressure difference around the range hood ventilation device. Surrounding the contaminated air A rising from the microwave cooker 11, the contaminated air A is sucked so as to be caught in the contaminated air A, and the smoke is surely collected without dissipating the contaminated air A, and the indoor cleanliness is improved. Prevents air from being sucked.
【００３６】尚、上記実施形態では、厨房などに設置さ
れるレンジフード換気装置について説明したが、本発明
はこれに限定されることなく、前記レンジフード換気装
置以外の他の局所換気装置にも適用可能である。In the above embodiment, a range hood ventilation device installed in a kitchen or the like has been described. However, the present invention is not limited to this, and may be applied to a local ventilation device other than the range hood ventilation device. Applicable.
【００３７】[0037]
【発明の効果】本発明によれば、集煙ガイドの下方周縁
部とフードの下方開口端との間に環状隙間を形成し、そ
の環状隙間から吐出された誘導気流が汚染空気の発生源
から上昇してくる汚染空気の吸引を促進してその汚染空
気を散逸させることなく確実に集煙し、かつ、室内の清
浄な空気が吸引されることを阻止できるので、無駄なく
集煙及び捕集効率の向上が図れ、室内の空調を乱すこと
はない。また、給気ダクトからの給気流を受け止めて拡
散させる第１の隔壁フィルタと、その第１の隔壁フィル
タを通過した第１の拡散気流を更に拡散させる第２の隔
壁フィルタとを設けたことにより、レンジフード換気装
置の周辺における屋外との気圧差が不安定で変動する状
態にあっても、第１の隔壁フィルタによる気流調整及び
第２の隔壁フィルタによる定常流化でもって環状隙間か
ら吐出される誘導気流を給気流制御してレンジフード換
気装置の周辺の気圧差と融合するように微速で吐出さ
れ、汚染空気を囲繞して散逸させることなく確実に集煙
し、実際に使用する上でも理想的な局所換気を容易に実
現できる。According to the present invention, an annular gap is formed between the lower peripheral portion of the smoke collecting guide and the lower opening end of the hood, and the induced airflow discharged from the annular gap is generated from the source of the contaminated air. It promotes the suction of the rising contaminated air to reliably collect the smoke without dissipating the contaminated air, and prevents the suction of the clean air in the room, so that the smoke is collected and collected without waste. Improve efficiency and disrupt indoor air conditioning
There is no. Also, by providing a first partition filter that receives and diffuses the supply air flow from the supply duct and a second partition filter that further diffuses the first diffusion air flow that has passed through the first partition filter. Even if the air pressure difference between the outside of the range hood ventilator and the outside is unstable and fluctuates, the air is discharged from the annular gap by the airflow adjustment by the first partition filter and the steady flow by the second partition filter. Slowly discharged so as to fuse with the pressure difference around the range hood ventilator by controlling the induced air flow to supply air flow, and to collect the smoke without surrounding the contaminated air and dissipate it without fail. Ideal local ventilation can be easily achieved.
【００３８】また、給気ダクトからの給気流を受け止め
て拡散させる第１の隔壁フィルタと、その第１の隔壁フ
ィルタを通過した第１の拡散気流を更に拡散させる第２
の隔壁フィルタとを設けたことにより、レンジフード換
気装置の周辺における屋外との気圧差が不安定で変動す
る状態にあっても、第１の隔壁フィルタによる気流調整
及び第２の隔壁フィルタによる定常流化でもって環状隙
間から吐出される誘導気流を給気流制御してレンジフー
ド換気装置の周辺の気圧差と融合するように微速で吐出
され、汚染空気を囲繞して散逸させることなく確実に集
煙し、実際に使用する上でも理想的な局所換気を容易に
実現できる。Further, a first partition filter for receiving and diffusing an air supply flow from the air supply duct, and a second filter for further diffusing the first diffusion air flow passing through the first partition filter.
Even if the air pressure difference around the range hood ventilator and the outside is unstable and fluctuates, the airflow regulation by the first partition filter and the steady state by the second partition filter are provided. The induction airflow discharged from the annular gap is supplied by air flow control, and is discharged at a very low speed so as to fuse with the pressure difference around the range hood ventilator by the supply airflow control. It smokes and ideal local ventilation can be easily realized even in actual use.
【図１】本発明に係る局所換気装置の実施形態を示す正
断面図FIG. 1 is a front sectional view showing an embodiment of a local ventilation device according to the present invention.
【図２】図１の側断面図FIG. 2 is a side sectional view of FIG.
【図３】図１の底面図FIG. 3 is a bottom view of FIG. 1;
【図４】図１の局所換気装置の使用状態を示す正断面図FIG. 4 is a front sectional view showing a use state of the local ventilation device of FIG. 1;
【図５】図４の側断面図FIG. 5 is a side sectional view of FIG. 4;
【図６】本発明の他の実施形態を説明するためのもの
で、箱形フードの天板部にダクトを有する局所換気装置
を示す正断面図FIG. 6 is a front sectional view showing a local ventilation device having a duct on a top plate portion of a box-shaped hood for explaining another embodiment of the present invention.
【図７】図６の側断面図FIG. 7 is a side sectional view of FIG. 6;
【図８】本発明の他の実施形態を説明するためのもの
で、箱形フードの側板部にダクトを有する局所換気装置
を示す正断面図FIG. 8 is a front sectional view showing a local ventilation device having a duct on a side plate portion of a box-shaped hood for explaining another embodiment of the present invention.
【図９】図８の側断面図FIG. 9 is a side sectional view of FIG. 8;
【図１０】局所換気装置の従来例を示す正断面図FIG. 10 is a front sectional view showing a conventional example of a local ventilation device.
【図１１】図１０の側断面図FIG. 11 is a side sectional view of FIG. 10;
【図１２】図１０の局所換気装置の使用状態を示す正断
面図FIG. 12 is a front sectional view showing a use state of the local ventilation device of FIG. 10;
【図１３】図１２の側断面図FIG. 13 is a side sectional view of FIG.
１１ 汚染空気発生源（レンジ調理器） １２ 箱形フード １３ 吸込フィルタ １４ 集煙ガイド １５ 吐出側上部空間 １６ 吸込側下部空間 １７ 区画壁 １９ 環状隙間 ２５ 箱形フード ２６ 吸込フィルタ ２７ 集煙ガイド ２９ 上部空間 ３０ 吐出槽 ３１ 気流調整槽 ３２ 定常流槽 ３４ 給気ダクト ３６ 第１の隔壁フィルタ ３７ 第２の隔壁フィルタ ３８ 給気ダクト ４０ 第１の隔壁フィルタ Ａ 汚染空気 Ｂ 誘導気流 ａ 給気流 ｂ 第１の拡散気流 ｃ 第２の拡散気流 DESCRIPTION OF SYMBOLS 11 Contaminated air generation source (range cooker) 12 Box-shaped hood 13 Suction filter 14 Smoke collection guide 15 Upper space on discharge side 16 Lower space on suction side 17 Partition wall 19 Annular gap 25 Box-shaped hood 26 Suction filter 27 Smoke collection guide 29 Upper part Space 30 Discharge tank 31 Air flow adjusting tank 32 Steady flow tank 34 Air supply duct 36 First partition filter 37 Second partition filter 38 Air supply duct 40 First partition filter A Contaminated air B Induction air flow a Supply air flow b First Diffusion airflow c second diffusion airflow
フロントページの続き (56)参考文献 特開 平４−63183（ＪＰ，Ａ) 特開 平８−21647（ＪＰ，Ａ) 特開 平６−159748（ＪＰ，Ａ) 特開 平４−140（ＪＰ，Ａ) 特開 昭54−147648（ＪＰ，Ａ) 特開 昭48−7557（ＪＰ，Ａ) 実開 平４−61234（ＪＰ，Ｕ) 実開 平６−73634（ＪＰ，Ｕ) 実開 平６−22840（ＪＰ，Ｕ) 実開 平５−36227（ＪＰ，Ｕ) 実開 平４−82535（ＪＰ，Ｕ) 実開 昭56−10147（ＪＰ，Ｕ) 実開 昭55−153524（ＪＰ，Ｕ)Continuation of the front page (56) References JP-A-4-63183 (JP, A) JP-A-8-21647 (JP, A) JP-A-6-159748 (JP, A) JP-A-4-140 (JP) JP-A-54-147648 (JP, A) JP-A-48-7557 (JP, A) JP-A-4-61234 (JP, U) JP-A-6-73634 (JP, U) 6-22840 (JP, U) Japanese Utility Model 5-252727 (JP, U) Japanese Utility Model 4-282535 (JP, U) Japanese Utility Model 56-10147 (JP, U) Japanese Utility Model Utility Model 55-153524 (JP, U) U)
Claims (1)
うに配置された箱形フード内に、吸込フィルタとその吸
込フィルタの上方へ延びて屋外と連通する吐出槽と吸込
フィルタから下方へ拡開しながら延びる集煙ガイドとを
配置し、前記集煙ガイドの下方周縁部をフードの下方開
口端に近接させてそのフードの下方開口端との間に環状
隙間を形成し、汚染空気発生源から上昇してくる汚染空
気を囲繞する誘導気流を前記環状隙間から微速で吐出さ
せる給気流制御方式による局所換気装置であって、 前記箱形フード内の上部空間で吐出槽の外周に形成され
た気流調整槽にその気流調整槽と連通して外気に開放し
た給気ダクトを設け、その給気ダクトからの給気流を受
け止めて拡散させる第１の隔壁フィルタを前記給気ダク
トの開口部と対向させて前記気流調整槽に配置し、前記
箱形フード内の下部で集煙ガイドの外周に形成された定
常流槽と前記気流調整槽との間に、前記第１の隔壁フィ
ルタにより気流調整された第１の拡散気流を更に拡散さ
せる第２の隔壁フィルタを配置し、その第２の隔壁フィ
ルタにより定常流化された第２の拡散気流を、前記環状
隙間から微速で吐出される誘導気流としたことを特徴と
する給気流制御方式による局所換気装置。In a box-shaped hood arranged so as to face and open to a contaminated air source, a suction filter, a discharge tank extending above the suction filter and communicating with the outdoors, and extending downward from the suction filter. A smoke collecting guide extending while being opened, a lower peripheral portion of the smoke collecting guide being close to a lower opening end of the hood, and an annular gap being formed between the lower opening and the lower opening end of the hood; A local ventilation device based on a supply air flow control system that discharges the induced airflow surrounding the contaminated air rising from the annular gap at a very low speed, and is formed on the outer periphery of a discharge tank in an upper space in the box-shaped hood. An airflow adjustment tank is provided with an air supply duct that is open to the outside air in communication with the airflow adjustment tank, and a first partition filter that receives and diffuses the airflow from the air supply duct faces the opening of the air supply duct. Let The first airflow regulating tank is disposed in the airflow adjusting tank, and the airflow is adjusted by the first partition wall filter between the steady flow tank and the airflow adjusting tank formed on the outer periphery of the smoke collection guide in the lower portion of the box-shaped hood. A second partition filter for further diffusing the diffused airflow of 1 is arranged, and the second diffused airflow which has been made steady by the second partition filter is an induced airflow discharged at a very low speed from the annular gap. A local ventilation device based on a supply air flow control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7288762A JP2644709B2 (en) | 1995-05-11 | 1995-11-07 | Local ventilation system with air supply flow control |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7-113280 | 1995-05-11 | ||
| JP11328095 | 1995-05-11 | ||
| JP7288762A JP2644709B2 (en) | 1995-05-11 | 1995-11-07 | Local ventilation system with air supply flow control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0926178A JPH0926178A (en) | 1997-01-28 |
| JP2644709B2 true JP2644709B2 (en) | 1997-08-25 |
Family
ID=26452270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7288762A Expired - Lifetime JP2644709B2 (en) | 1995-05-11 | 1995-11-07 | Local ventilation system with air supply flow control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2644709B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3395736B2 (en) * | 1999-10-26 | 2003-04-14 | ダイキン工業株式会社 | Air supply and exhaust system |
| CN103765112B (en) * | 2011-10-18 | 2017-02-08 | 松下知识产权经营株式会社 | Range hood |
| CN103629773A (en) * | 2012-08-23 | 2014-03-12 | 曹向阳 | Automatic-monitoring induction type air supply device with rifling |
| CN106066061B (en) * | 2016-07-18 | 2021-12-03 | 珠海格力电器股份有限公司 | Air port device and air pipe machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929781B2 (en) * | 1978-05-12 | 1984-07-23 | 日立プラント建設株式会社 | Exhaust hood device |
| JPS6017607Y2 (en) * | 1979-04-19 | 1985-05-30 | 勝久 浅尾 | Gas combustion section air supply and exhaust system equipped with a device to cut off gas combustion heat |
| JPS6017608Y2 (en) * | 1979-07-05 | 1985-05-30 | 勝久 浅尾 | Air supply and exhaust system for gas combustion section equipped with a device to cut off gas combustion heat |
| JP2654227B2 (en) * | 1990-04-13 | 1997-09-17 | 株式会社熊谷組 | Exhaust method |
| JP2836925B2 (en) * | 1990-06-29 | 1998-12-14 | 三菱重工業株式会社 | Fluid suction nozzle and fluid treatment device |
| JPH0461234U (en) * | 1990-09-29 | 1992-05-26 | ||
| JPH0482535U (en) * | 1990-11-22 | 1992-07-17 | ||
| JPH0536227U (en) * | 1991-10-11 | 1993-05-18 | 高砂熱学工業株式会社 | Exhaust hood device in the kitchen |
| JP2503720Y2 (en) * | 1992-06-05 | 1996-07-03 | 株式会社坂口ダクト工業 | Prefabricated kitchen hood |
| JP2538750B2 (en) * | 1992-11-25 | 1996-10-02 | 鹿島建設株式会社 | Exhaust system |
| JPH0821647A (en) * | 1994-07-05 | 1996-01-23 | Fujita Corp | Exhaust hood equipped with air speed regulating plate |
-
1995
- 1995-11-07 JP JP7288762A patent/JP2644709B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0926178A (en) | 1997-01-28 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970318 |