JP3664569B2

JP3664569B2 - Cooking exhaust purification device, cooking device food device, and cooking device

Info

Publication number: JP3664569B2
Application number: JP12682597A
Authority: JP
Inventors: 恵市川; 茂土田; 政之土井
Original assignee: Osaka Gas Co Ltd
Current assignee: Osaka Gas Co Ltd
Priority date: 1997-05-16
Filing date: 1997-05-16
Publication date: 2005-06-29
Anticipated expiration: 2017-05-16
Also published as: JPH10318577A

Description

【０００１】
【発明の属する技術分野】
本発明は、食品調理の分野で用いる調理排気浄化装置、及び、調理機器用フード装置、及び、調理機器に関する。
【０００２】
【従来の技術】
食品調理で発生する調理排気は環境保全や衛生の面から浄化して排出することが望まれるが、従来、調理排気を浄化するには、調理排気をフィルタ（一般的にはオイルフィルタ）に通過させて、そのフィルタで調理排気の含有不純物を捕集していた。
【０００３】
【発明が解決しようとする課題】
しかし、食品調理の調理排気には含有不純物としてオイルミスト、油蒸気、炭化物などが大量に含まれることから、フィルタによる不純物捕集ではフィルタの目詰まり、汚れ、性能低下が早く、この為、フィルタの交換や洗浄などのメンテナンスの負担が大きい問題があった。
【０００４】
また、フィルタの装備で排気抵抗が大きくなって調理排気の排出そのものが不良になったり、高圧の排気ファンが必要になって消費電力が嵩んだりファン騒音が大きくなる問題もあった。
【０００５】
以上の実情に対し、本発明の主たる課題は、調理排気の浄化に合理的な浄化方式を採用することで、上記の問題を解消する点にある。
【０００６】
【課題を解決するための手段】
〔１〕請求項１記載の発明では、食品調理で発生する調理排気を導く排気路において、液散布手段から排気路の内部へ散布する洗浄液により、調理排気が含有する不純物を捕捉し、これにより、その排気路における流通過程で調理排気を効果的に浄化することができる。
【０００７】
そして、散布洗浄液により調理排気を浄化するから、フィルタによる不純物捕集で調理排気を浄化する従来装置に比べ、フィルタの交換や洗浄を不要にしてメンテナンスの負担を大きく軽減できる。また、排気抵抗を小さくすることができて、調理排気の排出そのものも一層良好にすることができ、排気ファンを用いる場合では、その排気ファンを低圧仕様のものにすることができて、消費電力を低減できるとともにファン騒音も低減できる。
さらに、請求項１記載の発明では、調理排気を所定の浄化状態に浄化するのに要する単位時間当たりの洗浄液散布量を調理排気の温度検出に基づき判定して、その判定散布量に応じ、前記液散布手段の単位時間当たりの洗浄液散布量を調整する散布量調整用の自動制御手段を設けてあるから、人為操作による洗浄液散布量の調整操作を不要にして利便性を高めることができる。また、この自動化により、必要以上の洗浄液を無駄に散布することや、逆に洗浄液散布量が不足で調理排気浄化が不十分になることも確実に防止できる。
なお、調理排気を所定の浄化状態に浄化するのに要する単位時間当たりの洗浄液散布量の判定については、浄化前や浄化後の調理排気の温度を検出して、この検出結果から単位時間当たりの洗浄液必要散布量を判定する方式を採用できる。
【０００８】
〔２〕請求項２記載の発明では、排気路として、調理排気を下向き又は上向きに導く縦排気路を設け、そして、この縦排気路の上部側に液散布手段を配設してあるから、この縦排気路の上部から底部に至る区間を浄化区間として、液散布手段からの散布後の落下過程の洗浄液を、この浄化区間の全長で調理排気に対し浄化作用させることができ、これにより、調理排気を一層効率的かつ効果的に浄化することができる。
【０００９】
〔３〕請求項３記載の発明では、排気路が調理排気の流通状態にあるか否かを判定して、その判定に基づき、排気路が調理排気の流通状態にあるとき液散布手段を洗浄液散布させる散布発停用の自動制御手段を設けてあるから、人為操作による洗浄液散布の発停操作を不要にして利便性を高めることができる。また、この自動化により、調理排気が非流通状態になったときの散布停止操作忘れによる無駄な洗浄液散布も確実に防止できる。
【００１０】
なお、排気路が調理排気の流通状態にあるか否かの判定については、調理排気の発生源である調理機器の運転状態を検出して、この検出に基づき、調理機器が運転状態にあるときを排気路が調理排気の流通状態にあるときと判定する方式、また、調理排気を強制排出する排気ファンの運転状態を検出して、この検出に基づき、排気ファンが運転状態にあるときを排気路が調理排気の流通状態にあるときと判定する方式、あるいはまた、温度や不純物濃度などの状態検出に基づき発生調理排気そのものを検出して、排気路が調理排気の流通状態にあるか否かを判定する方式など、種々の方式を採用できる。
【００１３】
〔４〕請求項４記載の発明では、液散布手段からの散布で調理排気に対し浄化作用させた洗浄液の全部又は一部を回収して、その回収液を散布用洗浄液として液散布手段に再供給する洗浄液循環手段を設けてあるから、浄化作用後の洗浄液を全量廃棄するに比べ、洗浄液の消費量を節減して運転経費を安価にすることができる。また、浄化作用後の洗浄液を全量回収して再使用する場合では、液廃棄設備の無い所でも装置使用が可能となり、汎用性を高くすることができる。
【００１４】
〔５〕請求項５記載の発明では、液散布手段からの散布で調理排気に対し浄化作用させて調理排気の含有不純物を捕捉させた洗浄液から、その捕捉不純物を分離捕集する捕捉物捕集手段を設けてあるから、浄化作用後の洗浄液を廃棄する場合では、この捕捉物の分離捕集をもって浄化した洗浄液を廃棄でき、これにより、洗浄液廃棄方式を採りながらも、環境保全や衛生の面で一層優れたものにすることができる。また、浄化作用後の洗浄液を回収して再使用する場合では、この捕捉物の分離捕集をもって浄化した洗浄液を調理排気浄化に再使用でき、これにより、洗浄液再使用方式を採りながらも、調理排気に対する浄化効果を高く維持することができる。
【００１５】
〔６〕請求項６記載の発明では、調理排気浄化用の洗浄液とは異種の風路洗浄液を、液散布手段に供給して排気路の内部へ散布させる風路洗浄液供給手段を設けてあるから、この風路洗浄液の適時散布により、排気路内面の付着不純物や排気路底面の堆積不純物を効果的に洗い流すことができ、これにより、メンテナンスの負担を一層軽減できるとともに、衛生面で一層優れたものとすることができる。
【００１６】
また、調理排気浄化用の洗浄液を散布する液散布手段を利用して風路洗浄液を散布するから、調理排気浄化用の洗浄液を散布する液散布手段と、風路洗浄液を散布する液散布手段とを夫々、専用にして各別に排気路に装備するに比べ、装置の構造を簡略にして装置コストを安価し得るとともに装置の製作を容易にすることができる。
【００１７】
なお、風路洗浄液の散布については、液散布手段に対する調理排気浄化用洗浄液の供給を停止して風路洗浄液のみを散布する形式、あるいは、調理排気浄化用洗浄液との混合状態で風路洗浄液を散布する形式、あるいはまた、これらを選択できる形式のいずれを採用してもよい。
【００１８】
〔７〕請求項７記載の発明では、調理排気を捕集するフードと、その捕集調理排気を所定排出箇所へ導くフード接続排気路とを有する調理機器用のフード装置において、前記の液散布手段をフード接続排気路の内部へ洗浄液散布させる状態に設けてあるから、フードで捕集して所定排出箇所へ排出する調理排気を、そのフード接続排気路の通過過程で散布洗浄液により効果的に浄化できる。
【００１９】
そして、前記の請求項１記載の発明の効果により、調理排気浄化用のフィルタ（オイルフィルタ）をフードに装備する従来の調理機器用フード装置に比べ、メンテナンスの負担を大きく軽減でき、また、調理排気の捕集排出を一層良好にし得るとともに、排気ファンを装備する場合では消費電力及びファン騒音も低減できる優れた調理機器用フード装置とすることができる。
【００２０】
〔８〕請求項８記載の発明では、調理排気を所定排出箇所へ導く機器組付の排気路を有する調理機器において、前記の液散布手段を機器組付排気路の内部へ洗浄液散布させる状態に設けてあるから、この機器組付排気路を通して所定排出箇所へ排出する調理排気を、その機器組付排気路の通過過程で散布洗浄液により効果的に浄化できる。
【００２１】
そして、前記の請求項１記載の発明の効果により、調理機器組付のフードに調理排気浄化用のフィルタ（オイルフィルタ）を装備する従来の調理機器に比べ、メンテナンスの負担を大きく軽減でき、また、調理排気の排出を一層良好にし得るとともに、排気ファンを装備する場合では消費電力及びファン騒音も低減できる優れた調理機器とすることができる。
【００２２】
【発明の実施の形態】
【００２９】
図２はレンジやフライヤーなどに代表される種々の調理機器を示し、食品調理で発生する調理排気Ｇを排気ファン２０の運転により機器本体２１の上方で吸引捕集するフード２２と、その捕集調理排気Ｇを機器本体２１の背面側において所定の排出箇所（例えば室内気用排気器具の設置箇所や屋外）に導く排気路２３（排気ダクト）とを、機器本体２１に組み付け装備してある。
【００３０】
上記の機器組付排気路２３は、機器組付フード２２での捕集調理排気Ｇを下向きに導く上流側の縦排気路部分２３ａと、その上流側の縦排気路部分２３ａの下端から調理排気Ｇを上向きに導いて上端の排気口２４から排出する下流側の縦排気路部分２３ｂとを有するＵ字状風路にしてあり、上流側の縦排気路部分２３ａの上部には、調理排気浄化用の洗浄液を排気路内部へ散布する液散布手段、具体的には、洗浄液として給水路２５から供給される水Ｗを上流側の縦排気路部分２３ａの内部において下向きに噴霧形態で散布するスプレーノズル２６を設けてある。
【００３１】
すなわち、この調理機器は調理排気浄化装置を備え、上流側の縦排気路部分２３ａの上部から底部に至る区間を浄化空間として、この浄化区間においてスプレーノズル２６からの噴霧水Ｗにより、流通の調理排気Ｇにおけるオイルミスト、油蒸気、炭化物などの含有不純物を捕捉することで、排気口２４から排出する調理排気Ｇを浄化する。
【００３２】
また、下流側の縦排気路部分２３ｂの通過過程において、浄化後の調理排気Ｇに含まれる水滴を落下（すなわち水切り）させることで、水滴混じりの調理排気Ｇが排気口２４から排出されることを防止し、そして、上流側の縦排気路部分２３ａで不純物を捕捉した水Ｗ、及び、下流側の縦排気路部分２３ｂで落下した水滴は、機器組付排気路２３の底部で受け止めた上で、その底部に形成の排水口２７から室内の排水溝２８へ排出する。なお、２９は機器組付排気路２３に形成した蓋付きの掃除口である。
【００３３】
３０は人為操作で各種の運転指令を与える本体操作部、３１は運転制御を司る制御器、３２はフード２２の内部に設けた入口側温度センサ、３３は下流側の縦排気路部分２３ｂに設けた出口側温度センサであり、機器本体２１に装備の上記制御部３１は、本体操作部３０からの指令に基づく着火や消火、過熱時の自動消火や、調理温度を一定に保つ自動火力調整といった種々の調理機器制御に加え、各温度センサ３２，３３の検出温度ｔｉ，ｔｏ情報に基づき次の（イ）〜（ハ）の制御を実行するものとしてある。
【００３４】
（イ）入口側温度センサ３２の検出温度ｔｉが起動用の設定温度よりも高くなると、調理排気の発生状態になったとして、排気ファン２０を運転するとともに、給水路２５に介装の水噴霧発停用電磁弁３４を開弁してスプレーノズル２６を水噴霧させる。また、入口側温度センサ３２の検出温度ｔｉが停止用の設定温度よりも低くなると、調理排気の発生が無くなったとして、排気ファン２０の運転を停止するとともに、水噴霧発停用電磁弁３４を閉弁してスプレーノズル２６の水噴霧を停止させる。
【００３５】
（ロ）スプレーノズル２６による水噴霧状態において、出口側温度センサ３３の検出温度ｔｏが設定浄化後温度範囲の上限温度よりも高いと、スプレーノズル２６の単位時間当たりの水噴霧量が不足で浄化が不十分であるとして、給水路２５に介装した流量調整弁３５に対する流量増加側への調整操作により、スプレーノズル２６の単位時間当たりの水噴霧量を増加させ、また逆に、出口側温度センサ３３の検出温度ｔｏが設定浄化後温度範囲の下限温度よりも低いと、スプレーノズル２６の単位時間当たりの水噴霧量が過剰で必要以上の浄化であるとして、上記の流量調整弁３５に対する流量減少側への調整操作により、スプレーノズル２６の単位時間当たりの水噴霧量を減少させ、これにより、排気口２４から排出する調理排気Ｇの浄化状態を所要の一定状態に保つ。
【００３６】
（ハ）出口側温度センサ３３の検出温度に基づく上記流量調整弁３５の調整制御において、下流側縦排気路部分２３ｂにおける調理排気Ｇの温度を前記の設定浄化後温度範囲に調整できないとき、水噴霧発停用電磁弁３４の故障やスプレーノズル２６の故障、あるいはまた、流量調整弁３５の故障など、何らかの異常は発生したとして異常発生報知を行う。
【００３７】
つまり、上記（イ）の制御において、制御器３１は、温度検出に基づき機器組付排気路２３が調理排気Ｇの流通状態にあるか否かを判定し、その判定に基づき、機器組付排気路２３が調理排気Ｇの流通状態にあるときスプレーノズル２６を水噴霧させる噴霧（散布）発停用の自動制御手段を構成する。
【００３８】
また、上記（ロ）の制御において、制御器３１は、浄化後の調理排気Ｇに対する温度検出に基づき、調理排気Ｇを所要の浄化状態に浄化するのに要する単位時間当たりの水噴霧量を判定して、その判定噴霧量に応じ、スプレーノズル２６の単位時間当たりの水噴霧量を調整する噴霧量（散布量）調整用の自動制御手段を構成する。
【００３９】
スプレーノズル２６に水Ｗを供給する前記給水路２５は、その途中部分２５ａを、機器本体２１の内部において前記の制御器３１（または他の冷却必要装置）に対し適当な伝熱構造を介して伝熱可能な状態に配管してあり、これにより、調理機器の運転の際に、スプレーノズル２６へ送る水Ｗを冷却媒体に利用して制御器３１を冷却するようにして、調理熱に対する制御器３１の熱的保護機能を高めてある。
【００４０】
３６は機器本体２１に内装した洗剤タンク、３７はこの洗剤タンク３６の収容洗剤を給水路２５に注入する洗剤ポンプであり、前記制御器３１は、人為操作で操作部３０に風路洗浄指令が与えられると、水噴霧発停用電磁弁３４を開弁するとともに洗剤ポンプ３７を運転して、洗剤混入水Ｗ’をスプレーノズル２６から噴霧させる風路洗浄運転を実行するものとしてある。
【００４１】
つまり、洗剤混入水Ｗ’の噴霧により、機器組付排気路２３における上流側縦排気路部分２３ａの内面やＵ字状風路構造の底部に付着堆積した不純物を洗い流すようにしてあり、洗剤タンク３６及び洗剤ポンプ３７は、調理排気浄化用洗浄液としての水Ｗとは異種の風路洗浄液（すなわち、上記の洗剤混入水Ｗ’）をスプレーノズル２６に供給して排気路内部に噴霧させる風路洗浄液供給手段を構成する。なお、３８は洗剤タンク３６の側への水Ｗを逆流を防止する一方向弁である。
【００４２】
なお、同図２に示す調理機器において排気ファン２０を省略し、調理排気Ｇ自身のドラフト作用や、洗浄液散布に伴う冷却効果で調理排気Ｇを体積縮小させることによる負圧発生などで、調理排気Ｇを排出するようにしてもよい。
【００４３】
〔参考の実施形態〕
図１は調理機器用フード装置を示し、レンジやフライヤーなどの食品調理機器１の上方に設置するフード２と、このフード２から壁３を貫通させて室外へ延出するフード接続の排気路４（フード接続排気ダクト）と、フード２の出口部に装備の排気ファン５とを有し、この排気ファン５の運転により、調理機器１で発生する調理排気Ｇをフード２に吸引捕集するとともに、この捕集調理排気Ｇをフード接続排気路４を通じて室外へ排出する。
フード接続排気路４のうち室外部分４ａは、調理排気Ｇを下向きに導いて下端縦面部に形成の排気口６から調理排気Ｇを排出する縦排気路にしてあり、この縦排気路部分４ａの上部（すなわち、壁貫通後における曲がり部分の直後位置）には、調理排気浄化用の洗浄液を排気路内部へ散布する液散布手段、具体的には、洗浄液として給水路７から供給される水Ｗを排気路内部において下向きに噴霧形態で散布するスプレーノズル８を設けてある。
すなわち、このフード装置は調理排気浄化装置を備え、縦排気路部分４ａの上部から底部に至る区間を浄化区間として、この浄化区間においてスプレーノズル８からの噴霧水Ｗにより、流通の調理排気Ｇにおけるオイルミスト、油蒸気、炭化物などの含有不純物を捕捉することで、排気口６から排出する調理排気Ｇを浄化する。そして、不純物を捕捉した水Ｗは縦排気路部分４ａの底部で受け止めた上で、その底部に形成の排水口９から室外の排水溝１０へ排出する。６ａは排気口６に張設した防虫網である。
なお、本実施形態のフード装置では、調理排気Ｇとともに調理機器１から排出される燃焼排気も合わせフード２で吸引捕集して、上記の水噴霧による浄化処理の上で排気口６から室外へ排出する。
１１は人為操作により排気ファン５の発停を行うコントローラ部、１２は給水路７に介装した水噴霧発停用の電磁弁であり、このフード装置では、上記コントローラ部１１を、人為操作による排気ファン発停との連動で水噴霧発停用電磁弁１２を電気的に開閉操作する構成にし、これにより、排気ファン５の運転開始に伴いスプレーノズル８を自動的に水噴霧させ、かつ、排気ファン５の運転停止に伴いスプレーノズル８の水噴霧を自動的に停止させるようにしてある。
つまり、上記のコントローラ部１１は、排気ファン５の運転状態検出に基づき、排気ファン５が運転状態にあるときをフード接続排気路４が調理排気Ｇの流通状態にあるときと判定して、その判定に基づき、フード接続排気路４が調理排気Ｇの流通状態にあるときにスプレーノズル８を水噴霧させる噴霧（散布）発停用の自動制御手段を構成する。
１３は調理排気浄化用洗浄液の単位時間当たりの散布量、すなわち、スプレーノズル８の単位時間当たりの水噴霧量を調整する流量調整弁である。
〔別の実施形態〕
次に本発明の別の実施形態を列記する。
調理排気浄化用の洗浄液Ｗには、水以外の液（例えば温水や洗剤混入水など）
を用いてもよい。
【００４４】
液散布手段８，２６には、洗浄液Ｗを噴霧形態で散布する前記の如きスプレーノズルに限らず、例えば、洗浄液Ｗをシャワー状に散布する形式や膜状に散布する形式など、種々の散布形式のものを採用でき、その散布方向も横向きや上向き、また、調理排気Ｇの流れに対し対向する向きや横断する向きなど、種々の構成変更が可能である。
【００４５】
図３に示すように、液散布手段２６からの散布で調理排気Ｇに対し浄化作用させて調理排気Ｇの含有不純物を捕捉させた洗浄液Ｗから、その捕捉不純物を分離捕集するフィルタやグリストラップなどの捕捉物捕集手段４０を設け、そして、この不純物分離で浄化した洗浄液Ｗの全部ないし一部を散布用洗浄液として液散布手段２６に再供給する循環路４１や循環ポンプ４２などの洗浄液循環手段を設けてもよい。４３は洗浄液補給弁である。
【００４６】
なお、調理排気Ｇに対し浄化作用させた洗浄液Ｗから捕捉不純物を分離捕集する捕捉物捕集手段４０には、フィルタやグリストラップに限らず、種々の捕集形式のものを採用でき、また、調理排気Ｇに対し浄化作用させた洗浄液Ｗの全部ないし一部を散布用洗浄液として液散布手段２６に再供給する洗浄液循環手段の具体的構造も、図３に示す構造に限らず、種々の構成変更が可能である。
【００４７】
調理排気Ｇに対し浄化作用させた洗浄液Ｗを、上記の如き捕捉物捕集手段４０により不純物分離して浄化した上で排水溝１０，２８などへ排液するようにしてもよく、さらにまた、調理排気Ｇに対し浄化作用させた洗浄液Ｗを、浄化処理した上で、あるいは、そのままで排液タンクなどに回収するようにしてもよい。
【００４８】
液散布手段８，２６による洗浄液散布の発停は人為指令によって行うようにしてもよく、また、排気路４，２３が調理排気Ｇの流通状態にあるか否かを判定して、その判定に基づき、排気路４，２３が調理排気Ｇの流通状態にあるとき液散布手段８，２６を洗浄液散布させる自動制御手段を設ける場合には、調理排気Ｇの発生源である調理機器の運転状態を検出して、この検出に基づき、調理機器が運転状態にあるときを排気路４，２３が調理排気Ｇの流通状態にあるときと判定する方式や、調理排気Ｇを強制排出する排気ファン５，２０の運転状態を検出して、この検出に基づき、排気ファン５，２０が運転状態にあるときを排気路４，２３が調理排気Ｇの流通状態にあるときと判定する方式、あるいはまた、温度や不純物濃度などの状態検出に基づき発生調理排気Ｇそのものを検出して、排気路４，２３が調理排気Ｇの流通状態にあるか否かを判定する方式など、種々の判定方式を採用できる。
【００４９】
液散布手段８，２６の単位時間当たり洗浄液散布量の調整は、調理排気Ｇを所定の浄化状態に浄化するのに要する単位時間当たりの洗浄液散布量を判定して、その判定散布量に応じ、液散布手段８，２６の単位時間当たりの洗浄液散布量を調整する散布量調整用の自動制御手段を設ける場合には、浄化前や浄化後の調理排気Ｇの温度を検出して、この検出結果から単位時間当たりの洗浄液必要散布量を判定する方式を採用できる。
【００５０】
調理排気浄化用の洗浄液Ｗとは異種の風路洗浄液Ｗ’を、液散布手段８，２６に供給して排気路４，２６の内部へ散布させる風路洗浄液供給手段を設ける場合、その風路洗浄液Ｗ’には、風路洗浄が目的で調理排気浄化用の洗浄液Ｗと異なるものであれば、温水、洗剤混入水、洗剤そのものなど、種々の液を採用でき、また、その風路洗浄液Ｗ’を液散布手段８，２６に供給するための具体的構造も種々の形式を採用できる。
【００５１】
そして、風路洗浄液Ｗ’の散布は、人為指令によって行うようにしてもよく、また、調理排気浄化運転の終了のごとに自動的に実施したり、タイマー制御により自動的に実施するようにしてもよい。
【００５２】
本発明による調理排気浄化装置、調理機器用フード装置、及び、調理機器の実施にあたっては、調理排気Ｇを強制排出する排気ファン５，２０を装備せず、調理排気Ｇをそれ自身のドラフト作用や、屋外風の誘引作用で排出する形式を採用してもよい。
【００５３】
また、排気ファン５，２０を装備する形式において、あるいは、排気ファン５，２０を装備しない形式において、液散布手段８，２６からの洗浄液散布に伴う誘引作用で調理排気Ｇの排出を促進するようにしたり、また、液散布手段８，２６からの洗浄液散布による冷却で調理排気Ｇを体積縮小させて、この体積縮小に伴う負圧発生で調理排気Ｇの排出を促進するようにしてもよい。
【００５４】
本発明による調理排気浄化装置は、調理機器や調理機器用フード装置に組み付けて実施するに限らず、調理排気Ｇの流通がある排気路であれば、どのような形態の排気路に対しても適用でき、また、本発明による調理機器用フード装置におけるフード接続排気路４や、本発明による調理機器の機器組付風路２３の具体的風路構造もどのような形態のものであってもよい。
【図面の簡単な説明】
【図１】参考の実施形態を示す側面視の装置構成図
【図２】実施形態を示す側面視の装置構成図
【図３】別の実施形態を示す側面視の装置構成図
【符号の説明】
Ｇ調理排気
４，２３排気路
Ｗ洗浄液
８，２６液散布手段
４ａ，２３ａ縦排気路
１１，３１散布発停用の自動制御手段
３１散布量調整用の自動制御手段
４１，４２洗浄液循環手段
４０捕捉物捕集手段
Ｗ’ 風路洗浄液
３６，３７風路洗浄液供給手段
２フード
４フード接続排気路
２３機器組付排気路[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking exhaust purification device used in the field of food cooking, a food device for cooking equipment, and cooking equipment.
[0002]
[Prior art]
It is desirable to purify and exhaust the cooking exhaust generated in food preparation from the viewpoint of environmental protection and hygiene. Conventionally, in order to purify the cooking exhaust, the cooking exhaust is passed through a filter (generally an oil filter). Then, the impurities contained in the cooked exhaust were collected by the filter.
[0003]
[Problems to be solved by the invention]
However, the cooking exhaust of food cooking contains a large amount of oil mist, oil vapor, carbides, etc. as impurities contained in the food, so the filter is clogged, contaminated, and the performance deteriorates quickly when the impurities are collected by the filter. There was a problem that the burden of maintenance such as replacement and cleaning was large.
[0004]
In addition, there is a problem that the exhaust resistance becomes large due to the provision of the filter and the exhaust of the cooking exhaust itself becomes defective, or a high-pressure exhaust fan is required, resulting in increased power consumption and increased fan noise.
[0005]
With respect to the above situation, the main problem of the present invention is to eliminate the above-mentioned problems by adopting a rational purification method for cooking exhaust gas purification.
[0006]
[Means for Solving the Problems]
[1] In the first aspect of the present invention, in the exhaust passage for guiding the cooking exhaust generated in food cooking, the impurities contained in the cooking exhaust are captured by the cleaning liquid sprayed from the liquid spraying means to the inside of the exhaust passage. The cooking exhaust can be effectively purified during the distribution process in the exhaust passage.
[0007]
And since cooking exhaust gas is purified with a spray cleaning liquid, compared with the conventional apparatus which purifies cooking exhaust gas by collecting impurities by a filter, it is not necessary to replace or clean the filter, and the burden of maintenance can be greatly reduced. In addition, the exhaust resistance can be reduced, and the exhaust of the cooked exhaust itself can be further improved. When an exhaust fan is used, the exhaust fan can be of a low pressure specification, and the power consumption can be reduced. As well as fan noise.
Further, in the first aspect of the present invention, the amount of cleaning liquid sprayed per unit time required to purify the cooked exhaust to a predetermined purification state is determined based on the temperature detection of the cooked exhaust, and according to the determined sprayed amount, Since there is provided an automatic control means for adjusting the spraying amount for adjusting the spraying amount of the cleaning liquid per unit time of the liquid spraying means, it is not necessary to adjust the cleaning liquid spraying amount by human operation, and convenience can be improved. Moreover, this automation can reliably prevent unnecessary cleaning liquid from being sprayed unnecessarily, and conversely, the amount of cleaning liquid spraying is insufficient and cooking exhaust purification becomes insufficient.
Regarding the determination of the amount of cleaning liquid sprayed per unit time required to purify the cooked exhaust to a predetermined purification state, the temperature of the cooked exhaust before and after purification is detected, and the detection result per unit time A method for determining the required spray amount of the cleaning liquid can be adopted.
[0008]
[2] In the invention according to claim 2, as the exhaust path, a vertical exhaust path for guiding the cooked exhaust downward or upward is provided, and liquid spraying means is disposed on the upper side of the vertical exhaust path. With the section from the top to the bottom of this vertical exhaust passage as the purification section, the cleaning liquid in the falling process after spraying from the liquid spraying means can be purified against cooking exhaust over the entire length of this purification section, The cooking exhaust can be purified more efficiently and effectively.
[0009]
[3] In the invention according to claim 3, it is determined whether or not the exhaust passage is in a cooking exhaust flow state, and based on the determination, the liquid spraying means is used as a cleaning liquid when the exhaust passage is in the cooking exhaust flow state. Since there is provided an automatic control means for starting and stopping the spraying, it is possible to improve the convenience by eliminating the need for starting and stopping the spraying of the cleaning liquid by human operation. In addition, this automation can reliably prevent useless spraying of the cleaning liquid due to forgetting to stop the spraying operation when the cooking exhaust gas is in a non-circulating state.
[0010]
Note that when determining whether or not the exhaust passage is in the cooking exhaust flow state, the cooking appliance that is the source of cooking exhaust is detected and the cooking appliance is in the running state based on this detection. Is detected when the exhaust passage is in the cooking exhaust flow state, and the operating state of the exhaust fan that forcibly exhausts the cooking exhaust is detected, and based on this detection, the exhaust fan is in the operating state. Whether the exhaust path is in the cooking exhaust circulation state by detecting the generated cooking exhaust itself based on a method for determining when the passage is in the cooking exhaust circulation state, or on the detection of the state such as temperature and impurity concentration Various methods, such as a method for determining whether or not, can be adopted.
[0013]
[ 4 ] In the invention according to claim 4 , all or a part of the cleaning liquid purified by cooking air from the liquid spraying means is recovered, and the recovered liquid is reused as a spraying cleaning liquid in the liquid spraying means. Since the supply of the cleaning liquid circulation means is provided, the consumption of the cleaning liquid can be reduced and the operating cost can be reduced compared with the case where the entire cleaning liquid after the purification action is discarded. Further, when the entire amount of the cleaning liquid after the purification action is collected and reused, the apparatus can be used even in a place where there is no liquid disposal facility, and versatility can be enhanced.
[0014]
[ 5 ] In the invention according to claim 5, the trapped substance is collected by separating and trapping the trapped impurities from the cleaning liquid which has been purified from the cooked exhaust by spraying from the liquid spraying means and trapped impurities contained in the cooked exhaust. When the cleaning liquid after the purification action is discarded, the cleaning liquid purified by separating and collecting the trapped material can be discarded, which enables environmental protection and hygiene aspects while adopting the cleaning liquid disposal method. It can be made even better. In addition, when the cleaning liquid after the purification action is collected and reused, the cleaning liquid purified by separating and collecting the trapped material can be reused for cooking exhaust gas purification, which enables cooking while using the cleaning liquid reuse method. It is possible to maintain a high purification effect on the exhaust.
[0015]
[ 6 ] In the invention according to claim 6 , there is provided air passage cleaning liquid supply means for supplying an air passage cleaning liquid different from the cleaning liquid for cooking exhaust gas purification to the liquid spraying means and spraying it inside the exhaust passage. The timely spraying of this air passage cleaning liquid can effectively wash away impurities deposited on the inner surface of the exhaust passage and impurities deposited on the bottom of the exhaust passage, thereby further reducing the burden of maintenance and further improving hygiene. Can be.
[0016]
Also, since the air channel cleaning liquid is sprayed using the liquid spraying means for spraying the cleaning liquid for cooking exhaust purification, the liquid spraying means for spraying the cleaning liquid for cooking exhaust purification, the liquid spraying means for spraying the air path cleaning liquid, As compared with the case where each is dedicated and provided in the exhaust passage, the structure of the device can be simplified to reduce the device cost and to facilitate the manufacture of the device.
[0017]
As for the spraying of the air path cleaning liquid, the supply of the cleaning liquid for cooking exhaust purification to the liquid spraying means is stopped and only the air cleaning liquid is sprayed, or the air cleaning liquid is mixed with the cleaning liquid for cleaning the cleaning exhaust gas. Any of a form of spraying or a form in which these can be selected may be adopted.
[0018]
[ 7 ] In the invention according to claim 7 , in the hood apparatus for a cooking appliance having a hood for collecting cooking exhaust and a hood connection exhaust path for guiding the collected cooking exhaust to a predetermined discharge location, the liquid spraying Since the cleaning fluid is sprayed to the inside of the hood connection exhaust passage, the cooking exhaust that is collected by the hood and discharged to the predetermined discharge location is effectively removed by the spray cleaning fluid in the process of passing through the hood connection exhaust passage. It can be purified.
[0019]
The effect of the first aspect of the invention can greatly reduce the burden of maintenance compared to conventional cooking equipment hood devices equipped with a cooking exhaust purification filter (oil filter) in the hood. In addition to improving the collection and discharge of exhaust gas, when equipped with an exhaust fan, it is possible to provide an excellent food device for cooking appliances that can reduce power consumption and fan noise.
[0020]
[ 8 ] In the invention as set forth in claim 8 , in the cooking appliance having an appliance-attached exhaust passage for guiding the cooking exhaust to a predetermined discharge location, the liquid spraying means is sprayed into the interior of the appliance-attached exhaust passage. Since it is provided, the cooked exhaust discharged through the device assembly exhaust passage to a predetermined discharge location can be effectively purified by the spray cleaning liquid in the process of passing through the device assembly exhaust passage.
[0021]
According to the effect of the first aspect of the present invention, the burden of maintenance can be greatly reduced as compared with a conventional cooking appliance in which a cooking exhaust gas purifying filter (oil filter) is provided in a cooking appliance-assembled hood. In addition, the exhaust of cooking exhaust can be further improved, and when an exhaust fan is provided, an excellent cooking device that can reduce power consumption and fan noise can be obtained.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
[0029]
FIG. 2 shows various cooking appliances typified by a range, a fryer, etc., and a hood 22 for sucking and collecting cooking exhaust G generated by food cooking above the appliance main body 21 by operation of the exhaust fan 20 and its collection. An exhaust passage 23 (exhaust duct) that guides the cooked exhaust G to a predetermined discharge location (for example, a location where an indoor air exhaust device is installed or outdoors) on the back side of the device main body 21 is assembled to the device main body 21.
[0030]
The above-described equipment assembly exhaust path 23 is a cooking exhaust from the upstream longitudinal exhaust path portion 23a that guides the collected cooking exhaust G in the equipment assembly hood 22 downward and from the lower end of the upstream longitudinal exhaust path portion 23a. A U-shaped air passage having a downstream vertical exhaust passage portion 23b that guides G upward and discharges it from the exhaust port 24 at the upper end is provided, and the upper portion of the upstream vertical exhaust passage portion 23a has a cooking exhaust purification. Spraying means for spraying the cleaning liquid for use in the exhaust passage, specifically, spray for spraying the water W supplied from the water supply passage 25 as the cleaning liquid downward in the form of a spray inside the vertical exhaust passage portion 23a on the upstream side A nozzle 26 is provided.
[0031]
That is, this cooking appliance is provided with a cooking exhaust purification device, and a section extending from the top to the bottom of the upstream vertical exhaust passage portion 23a is defined as a purification space, and the cooking in circulation is performed by the spray water W from the spray nozzle 26 in this purification section. The cooking exhaust G discharged from the exhaust port 24 is purified by capturing impurities such as oil mist, oil vapor, and carbides in the exhaust G.
[0032]
Further, in the process of passing through the downstream vertical exhaust passage portion 23b, the water drops contained in the purified cooking exhaust gas G are dropped (that is, drained), so that the cooking exhaust gas G mixed with water drops is discharged from the exhaust port 24. The water W trapped in the upstream vertical exhaust passage portion 23a and the water droplets dropped in the downstream vertical exhaust passage portion 23b are received at the bottom of the device-attached exhaust passage 23. Then, the water is discharged from the drain port 27 formed at the bottom to the indoor drain groove 28. Reference numeral 29 denotes a cleaning port with a lid formed in the device assembly exhaust passage 23.
[0033]
Numeral 30 is a main body operation section for giving various operation commands by human operation, 31 is a controller for controlling operation, 32 is an inlet side temperature sensor provided in the hood 22, and 33 is provided in the vertical exhaust passage portion 23 b on the downstream side. The above-described control unit 31 provided in the apparatus main body 21 is an ignition and extinguishing based on a command from the main body operation unit 30, automatic extinguishing when overheating, and automatic heating power adjustment that keeps the cooking temperature constant. In addition to various cooking appliance controls, the following controls (A) to (C) are executed based on the detected temperatures ti, to information of the temperature sensors 32, 33.
[0034]
(A) When the detected temperature ti of the inlet side temperature sensor 32 becomes higher than the set temperature for activation, the exhaust fan 20 is operated and the water spray interposed in the water supply passage 25 is assumed to be in a state where cooking exhaust is generated. The start / stop solenoid valve 34 is opened to spray the spray nozzle 26 with water. When the detected temperature ti of the inlet side temperature sensor 32 becomes lower than the set temperature for stoppage, the exhaust fan 20 stops operating and the water spray start / stop solenoid valve 34 is turned off, assuming that cooking exhaust is no longer generated. The valve is closed to stop water spraying from the spray nozzle 26.
[0035]
(B) In the state of water spraying by the spray nozzle 26, if the detected temperature to of the outlet side temperature sensor 33 is higher than the upper limit temperature of the temperature range after the set purification, the amount of water spray per unit time of the spray nozzle 26 is insufficient and purified. Is insufficient, the amount of water spray per unit time of the spray nozzle 26 is increased by the adjustment operation to the flow rate increase side with respect to the flow rate adjustment valve 35 interposed in the water supply passage 25, and conversely, the outlet side temperature If the detection temperature to of the sensor 33 is lower than the lower limit temperature of the set purification temperature range, the amount of water sprayed per unit time of the spray nozzle 26 is excessive and the purification is more than necessary. By the adjustment operation to the decreasing side, the amount of water spray per unit time of the spray nozzle 26 is reduced, thereby purifying the cooking exhaust G discharged from the exhaust port 24. Keep the state to the desired steady state.
[0036]
(C) In the adjustment control of the flow rate adjustment valve 35 based on the temperature detected by the outlet side temperature sensor 33, when the temperature of the cooked exhaust G in the downstream longitudinal exhaust passage portion 23b cannot be adjusted to the set post-purification temperature range, Abnormality occurrence notification is made on the assumption that some abnormality has occurred, such as failure of the spray start / stop solenoid valve 34, spray nozzle 26, or flow rate adjustment valve 35.
[0037]
That is, in the control (A), the controller 31 determines whether or not the device assembly exhaust passage 23 is in a circulation state of the cooked exhaust G based on the temperature detection, and the device assembly exhaust is based on the determination. When the passage 23 is in the state of circulation of the cooking exhaust G, an automatic control means for spraying (spreading) starting and stopping for spraying the spray nozzle 26 with water is configured.
[0038]
Further, in the control (b), the controller 31 determines the amount of water spray per unit time required to purify the cooked exhaust G into the required purified state based on the temperature detection of the purified cooked exhaust G. And the automatic control means for the spray amount (spraying amount) adjustment which adjusts the water spray amount per unit time of the spray nozzle 26 according to the determined spray amount is comprised.
[0039]
The water supply passage 25 for supplying the water W to the spray nozzle 26 has an intermediate portion 25a in the interior of the device main body 21 via the heat transfer structure suitable for the controller 31 (or other cooling-requiring device). The pipe is piped in a heat transferable state, so that when the cooking appliance is operated, the controller 31 is cooled by using the water W sent to the spray nozzle 26 as a cooling medium to control the cooking heat. The thermal protection function of the vessel 31 is enhanced.
[0040]
36 is a detergent tank built in the apparatus main body 21, 37 is a detergent pump for injecting the detergent contained in the detergent tank 36 into the water supply path 25, and the controller 31 is manually operated to send an air path cleaning command to the operation unit 30. When given, the water spray start / stop solenoid valve 34 is opened and the detergent pump 37 is operated to execute the air path cleaning operation in which the detergent-mixed water W ′ is sprayed from the spray nozzle 26.
[0041]
In other words, by spraying the detergent-mixed water W ′, impurities deposited and deposited on the inner surface of the upstream side vertical exhaust passage portion 23a in the equipment assembly exhaust passage 23 and the bottom of the U-shaped air passage structure are washed away. 36 and the detergent pump 37 supply an air path cleaning liquid different from the water W as a cleaning liquid for cooking exhaust gas purification (that is, the detergent-mixed water W ′) to the spray nozzle 26 and spray it into the exhaust path. A cleaning liquid supply means is configured. Reference numeral 38 denotes a one-way valve for preventing the water W flowing toward the detergent tank 36 from flowing backward.
[0042]
In the cooking appliance shown in FIG. 2, the exhaust fan 20 is omitted, and the cooking exhaust G is reduced due to the drafting action of the cooking exhaust G itself or the negative pressure generated by reducing the volume of the cooking exhaust G by the cooling effect accompanying the spraying of the cleaning liquid. G may be discharged.
[0043]
[Reference Embodiment]
FIG. 1 shows a hood device for a cooking appliance, a hood 2 installed above a food cooking appliance 1 such as a range or a fryer, and a hood-connected exhaust passage 4 extending from the hood 2 through a wall 3 to the outside. (Hood connection exhaust duct) and an exhaust fan 5 equipped at the outlet of the hood 2, and by operating the exhaust fan 5, the cooking exhaust G generated by the cooking device 1 is sucked and collected in the hood 2. The collected cooking exhaust G is discharged to the outside through the hood connection exhaust passage 4.
The outdoor portion 4a of the hood connection exhaust passage 4 is a vertical exhaust passage that guides the cooking exhaust G downward and discharges the cooking exhaust G from the exhaust port 6 formed in the lower end vertical surface portion. In the upper part (that is, the position immediately after the bent portion after passing through the wall), the liquid spraying means for spraying the cleaning liquid for cooking exhaust purification into the exhaust path, specifically, the water W supplied from the water supply path 7 as the cleaning liquid. A spray nozzle 8 is provided for spraying the fuel in a spray form downward in the exhaust passage.
That is, this hood device is provided with a cooking exhaust purification device, and a section from the top to the bottom of the vertical exhaust passage portion 4a is defined as a purification section, and in this purification section, the sprayed water W from the spray nozzle 8 is used in the circulating cooking exhaust G. The cooking exhaust G discharged from the exhaust port 6 is purified by capturing impurities such as oil mist, oil vapor, and carbide. And the water W which caught the impurity is received in the bottom part of the vertical exhaust path part 4a, and is discharged | emitted from the drain port 9 formed in the bottom part to the outdoor drainage groove 10. FIG. 6 a is an insect net stretched around the exhaust port 6.
In the hood apparatus of this embodiment, the combustion exhaust discharged from the cooking device 1 together with the cooking exhaust G is also collected and collected by the hood 2, and then moved from the exhaust port 6 to the outdoor after the purification process by the water spray. Discharge.
11 is a controller unit for starting and stopping the exhaust fan 5 by human operation, and 12 is a water spray starting and stopping electromagnetic valve interposed in the water supply path 7. In this hood device, the controller unit 11 is operated by human operation. The water spray start / stop solenoid valve 12 is electrically opened and closed in conjunction with the exhaust fan start / stop, whereby the spray nozzle 8 is automatically sprayed with water when the exhaust fan 5 starts operating, and The water spray of the spray nozzle 8 is automatically stopped when the operation of the exhaust fan 5 is stopped.
That is, the controller unit 11 determines that when the exhaust fan 5 is in the operating state based on detection of the operating state of the exhaust fan 5 as when the hood connection exhaust path 4 is in the circulation state of the cooking exhaust G, Based on the determination, an automatic control means for spraying (spreading) starting / stopping that sprays the spray nozzle 8 with water when the hood connection exhaust path 4 is in the circulation state of the cooking exhaust G is configured.
Reference numeral 13 denotes a flow rate adjusting valve that adjusts the spray amount per unit time of the cooking exhaust gas cleaning liquid, that is, the water spray amount per unit time of the spray nozzle 8.
[Another embodiment]
Next, another embodiment of the present invention will be listed.
The cleaning liquid W for cooking exhaust purification is a liquid other than water (for example, warm water or detergent mixed water).
May be used.
[0044]
The liquid spraying means 8 and 26 are not limited to the above-described spray nozzles that spray the cleaning liquid W in a spray form. For example, various spraying forms such as a spraying form of the cleaning liquid W and a spraying form of a film. Various configurations can be changed, such as a horizontal direction or an upward direction, and a direction facing or crossing the flow of the cooking exhaust gas G.
[0045]
As shown in FIG. 3, a filter or grease trap that separates and collects the trapped impurities from the cleaning liquid W that purifies the cooking exhaust G by spraying from the liquid spraying means 26 and traps impurities contained in the cooked exhaust G. The trapping material collecting means 40 such as the above is provided, and the cleaning liquid circulation such as the circulation path 41 and the circulation pump 42 for re-feeding all or a part of the cleaning liquid W purified by the impurity separation to the liquid spraying means 26 as the spraying cleaning liquid. Means may be provided. 43 is a cleaning liquid supply valve.
[0046]
The trapping substance collecting means 40 that separates and traps trapped impurities from the cleaning liquid W that purifies the cooking exhaust G is not limited to filters and grease traps, and various trapping types can be adopted. The specific structure of the cleaning liquid circulating means for re-supplying the liquid spraying means 26 with all or a part of the cleaning liquid W purifying the cooking exhaust gas G as the spraying cleaning liquid is not limited to the structure shown in FIG. Configuration change is possible.
[0047]
The cleaning liquid W purified on the cooking exhaust G may be purified by separating and purifying impurities by the trapping means collecting means 40 as described above, and then drained to the drain grooves 10, 28, etc. The cleaning liquid W purified on the cooking exhaust G may be collected in a drainage tank or the like after being purified or as it is.
[0048]
The start and stop of spraying of the cleaning liquid by the liquid spraying means 8 and 26 may be performed by an artificial command, and it is determined whether or not the exhaust passages 4 and 23 are in a circulation state of the cooked exhaust G. On the basis of this, in the case of providing automatic control means for spraying the liquid spraying means 8 and 26 when the exhaust passages 4 and 23 are in the circulation state of the cooking exhaust G, the operating state of the cooking appliance that is the source of the cooking exhaust G is determined. Based on this detection, a method of determining when the cooking appliance is in an operating state is when the exhaust passages 4 and 23 are in a circulation state of the cooking exhaust G, or an exhaust fan 5 for forcibly discharging the cooking exhaust G A method of detecting the operation state of 20 and determining, based on this detection, that the exhaust passages 5 and 20 are in the operation state is when the exhaust passages 4 and 23 are in the circulation state of the cooked exhaust G, or the temperature State such as impurity concentration By detecting the occurrence cooking exhaust G itself based on the output, such as determining system whether the exhaust passage 4 and 23 are in fluid communication of the cooking exhaust G, it can employ various determination methods.
[0049]
The adjustment of the amount of cleaning liquid sprayed per unit time of the liquid spraying means 8 and 26 is determined by determining the amount of cleaning liquid sprayed per unit time required to purify the cooking exhaust G into a predetermined purification state, and according to the determined spraying amount. in the case of providing the automatic control means for the spray amount adjustment for adjusting the cleaning liquid application rate per unit time of the liquid spraying means 8 and 26 detects the temperature of the cooking exhaust G after purification or before cleaning, the detection result From this, it is possible to adopt a method for determining the required spraying amount of cleaning liquid per unit time.
[0050]
When air path cleaning liquid supply means for supplying an air path cleaning liquid W 'different from the cleaning liquid W for cooking exhaust gas purification to the liquid spraying means 8 and 26 and spraying it into the exhaust paths 4 and 26 is provided. As the cleaning liquid W ′, various liquids such as warm water, detergent-mixed water, and the detergent itself can be used as long as they are different from the cleaning liquid W for cooking exhaust purification for the purpose of air path cleaning. Various types of concrete structures for supplying 'to the liquid spraying means 8 and 26 can be adopted.
[0051]
Further, the air passage cleaning liquid W ′ may be sprayed by an artificial command, or automatically performed at the end of the cooking exhaust purification operation or automatically by timer control. Also good.
[0052]
In implementing the cooking exhaust purification device, the cooking appliance hood device, and the cooking appliance according to the present invention, the cooking exhaust G is not equipped with the exhaust fans 5 and 20 forcibly discharging the cooking exhaust G, and the cooking exhaust G is drafted by itself. In addition, a form of discharging by the outdoor wind attracting action may be adopted.
[0053]
Further, in the type in which the exhaust fans 5 and 20 are provided, or in the type in which the exhaust fans 5 and 20 are not provided, the exhaust of the cooking exhaust G is promoted by the attraction action accompanying the spraying of the cleaning liquid from the liquid spraying means 8 and 26. Alternatively, the volume of the cooking exhaust G may be reduced by cooling by spraying the cleaning liquid from the liquid spraying means 8 and 26, and the discharge of the cooking exhaust G may be promoted by generation of a negative pressure accompanying the volume reduction.
[0054]
The cooking exhaust purification apparatus according to the present invention is not limited to being implemented in a cooking device or a cooking equipment hood device, but can be applied to any form of exhaust passage as long as the exhaust passage has a circulation of cooking exhaust G. The hood connection exhaust passage 4 in the cooking device hood apparatus according to the present invention and the specific air passage structure of the cooking equipment device assembly air passage 23 according to the present invention are of any form. Good.
[Brief description of the drawings]
[1] Description of reference for device configuration diagram of a side view showing an embodiment [2] device diagram - sign in a side view showing an apparatus configuration diagram Figure 3 another embodiment of a side view illustrating an embodiment ]
G Cooking exhaust 4,23 Exhaust path W Cleaning liquid 8,26 Liquid spraying means 4a, 23a Vertical exhaust path 11,31 Automatic control means for spraying start / stop 31 Automatic control means for adjusting spraying amount 41,42 Cleaning liquid circulation means 40 Trapping Object collection means W 'Airway cleaning liquid 36, 37 Airway cleaning liquid supply means 2 Hood 4 Hood connection exhaust path 23 Equipment assembly exhaust path

Claims

食品調理で発生する調理排気を導く排気路に、その排気路の内部へ洗浄液を散布して流通の調理排気を浄化する液散布手段を設け、調理排気を所定の浄化状態に浄化するのに要する単位時間当たりの洗浄液散布量を判定して、その判定散布量に応じ、前記液散布手段の単位時間当たりの洗浄液散布量を調整する散布量調整用の自動制御手段を設け、その自動制御手段を、調理排気の温度検出に基づき、調理排気を所定の浄化状態に浄化するのに要する単位時間当たりの洗浄液散布量を判定するように構成されている調理排気浄化装置。In order to purify the cooking exhaust gas to a predetermined purification state, a liquid spraying means for purifying the cooking exhaust gas in circulation is provided in the exhaust passage that guides cooking exhaust gas generated in food cooking. An automatic control means for adjusting the spraying amount is provided for determining the spraying amount of the cleaning liquid per unit time and adjusting the spraying amount of the cleaning liquid per unit time of the liquid spraying means according to the determined spraying amount. based on the temperature detection of the cooking exhaust, cooking exhaust predetermined cleaning liquid application rate per unit time required to clean the purification state that is configured to determine the cooking exhaust purification device.

前記排気路として、調理排気を下向き又は上向きに導く縦排気路を設け、この縦排気路の上部に前記液散布手段を配設してある請求項１記載の調理排気浄化装置。 The cooking exhaust purification apparatus according to claim 1, wherein a vertical exhaust passage for guiding the cooked exhaust downward or upward is provided as the exhaust passage, and the liquid spraying means is disposed above the vertical exhaust passage.

前記排気路が調理排気の流通状態にあるか否かを判定して、その判定に基づき、前記排気路が調理排気の流通状態にあるとき前記液散布手段を洗浄液散布させる散布発停用の自動制御手段を設けてある請求項１又は２記載の調理排気浄化装置。 It is determined whether or not the exhaust passage is in a cooking exhaust circulation state, and based on the determination, spraying start / stop automatic spraying the liquid spraying means when the exhaust passage is in a cooking exhaust circulation state The cooking exhaust purification apparatus according to claim 1 or 2, further comprising a control means.

前記液散布手段からの散布で調理排気に対し浄化作用させた洗浄液の全部又は一部を回収して、その回収液を散布用洗浄液として前記液散布手段に再供給する洗浄液循環手段を設けてある請求項１〜３のいずれか１項に記載の調理排気浄化装置。 A cleaning liquid circulation means is provided for recovering all or part of the cleaning liquid that has been purified against cooking exhaust gas by spraying from the liquid spraying means, and re-supplying the recovered liquid as spray cleaning liquid to the liquid spraying means. The cooking exhaust purification apparatus of any one of Claims 1-3.

前記液散布手段からの散布で調理排気に対し浄化作用させて調理排気の含有不純物を捕捉させた洗浄液から、その捕捉不純物を分離捕集する捕捉物捕集手段を設けてある請求項１〜４のいずれか１項に記載の調理排気浄化装置。5. A trapping substance collecting means is provided for separating and collecting the trapped impurities from the cleaning liquid obtained by purifying the cooking exhaust gas by spraying from the liquid spraying means and trapping impurities contained in the cooked exhaust gas. The cooking exhaust gas purification device according to any one of the above.

調理排気浄化用の前記洗浄液とは異種の風路洗浄液を、前記液散布手段に供給して前記排気路の内部に散布させる風路洗浄液供給手段を設けてある請求項１〜５のいずれか１項に記載の調理排気浄化装置。 6. An air path cleaning liquid supply means for supplying an air path cleaning liquid different from the cleaning liquid for cooking exhaust purification to the liquid spraying means and spraying it inside the exhaust path is provided. The cooking exhaust gas purification device according to Item.

請求項１〜６のいずれか１項に記載の調理排気浄化装置を備える調理機器用フード装置であって、
調理排気を捕集するフードと、その捕集調理排気を所定排出箇所へ導くフード接続排気路とを有する構成において、前記液散布手段を前記フード接続排気路の内部へ洗浄液散布させる状態に設けてある調理機器用フード装置。 It is a food appliance for cooking appliances provided with the cooking exhaust gas purification device according to any one of claims 1 to 6,
In a configuration having a hood for collecting cooking exhaust and a hood connection exhaust path for guiding the collected cooking exhaust to a predetermined discharge location, the liquid spraying means is provided in a state in which the cleaning liquid is sprayed inside the hood connection exhaust path. A food device for cooking equipment .

請求項１〜６のいずれか１項に記載の調理排気浄化装置を備える調理機器であって、
調理排気を所定排出箇所へ導く機器組付排気路を有する構成において、前記液散布手段を前記機器組付排気路の内部へ洗浄液散布させる状態に設けてある調理機器。A cooking appliance comprising the cooking exhaust purification device according to any one of claims 1 to 6 ,
In the configuration having the equipment assembling exhaust path for guiding the cooking exhaust to a predetermined discharge position, the cooking apparatus is provided with the liquid spraying means in a state to the cleaning liquid sprayed into the interior of the device assembly exhaust passage.