1320087 九、發明說明： [發明所屬之技術頜域】 特別關於- 種有助於氣流 本發明係關於一種氣簾產生裝置 流量平均之氣簾產生裝置。 【先前技術】 在許夕會產生有害污染源之工作場所，如具有油煙，揮發性 有機溶劑、錯、粉塵或特定化學物f之運作場所，—般都依盛際 需求在工作檯上方設置局聊驗置，將污_射排放處= 維瘦人體職。最常糾局部排氣裝£便是裝設於工作檯上方的 排氣機’但是賴職機的婦財會受顺_侧向擴 作域魏機的絲高度㈣響，而導致其排氣效果不彰。為解 二=则’便出現一種具背牆、側牆與前拉門的排氣櫃，此 種排乳櫃雖可減少環境側風的影響，但由於排氣 =構使得工作檯大小與操作者上肢活動空間都受舰制3 則拉·門的設計於作業上並不方便。 背牌第雙456號專利案，係提出—種具有侧牆與 提罩通^置，此氣罩通風裝置於工作檯和操作者間 染源往中二動Τ牆上提供_直_#之氣流，以導引污 5 5042456 本身的作者上肢活動空間受到叫 I置的簡，賴和_餘，錢魏罩通風. 又2本大增，不利於日後產品的推廣與普及。 芈民國新財利朦祕3號以及美國專利公告第 132〇〇s7 67)-i44唬專刊案，兩案皆提及一種輔助 嫁機，其中導煙機係對應於排氣機設置，而於工作棱盘排 間提供向上氣簾，㈣止污_錄作者方向及工作檯側= 散。其:，心⑵44號案之導煙機之機械結構較為複雜且零件成 本也較高。而奶祕3號案雖擁有相對簡單的機械構造，但對於 鋒本身的财性與出軌之氣流流量杨並衫加著黑，盆中 ，=類裝置的耐用度有關，而氣流流量是否均勾也關係 著亂簾的效果。 I【發明内容】 •有鑒於先前技術之導賴並未考慮到歧f不均及出風q 中液體不易排出的問題，本發明係提供一種氣簾產生裝置，= 過出風孔孔徑或出風孔數量之變化設計改善出風量不均 題’亚設置有導引液體排出氣簾產生裝置之構造。 為達成前述之目的，本發明提供一種氣簾產生褒置，包 立少-鼓風機及-導風管，其中鼓風機係用 ，風管則承接鼓風機產生之氣产。導,W ^而導 a<R 气轧/巩¥風官包含有一供氣流通過之封 出風段，其中域段係承接通過段之氣流並且且有 複數個供氣流吹出之出風孔，而出風孔係依氣流流動路徑依序排 列。出風段係被區分為—對應於封閉段之轉折區及至少一且^ 封閉端之順流區。，其中透過出風孔孔徑或出風孔數量之變化設 十，頁抓區之早位，度之總出風截面積係由封閉端朝轉折區逐 ^ 口二’而轉折區之單位長度之總出風截面積係小於或等於順汽 品之早位長度之總出顯面積的最小值，藉以使侧自域孔吹 1320087 出之氣流形成一流量均勻之氣簾，而增加氣簾之包圍效能。此外， 導風管之出風段更包含一導引斜面，而導風管更具有一引流管， 其中導引斜面係導引位於出風段之液體流動至封閉段，而引流管 係導引位於封閉段之液體排出導風管外，藉以避免液體囤積於導 風官中0 本發明之功效在於，導風管之出風孔係依氣流流動特性配置 其孔徑大小，使吹出出風孔之氣流流量均勻而加強氣簾之包圍效 成’而導風f更設置有料斜面及引流管，可寶助不慎流入導風 管之液體順利地排出。 以下在貫施方式帽細敘述本發明之詳細特徵以及優點，直 t容足以使任何㈣相關技藝者了解本發明之技術内容並據以實 鈀，且根據本說明書所揭露之内容、申請專利範圍及圖式，任何 熟習相關技藝者可輕易地理解本發明相關之目的及優點。 ϋ上之關於本發㈣容之_及町之實财式之說明係用 树狄驗，並且触树-料申請範圍更 【實施方式】 為使對本發明的目的、 解，兹配合實施鱗細說明如下。·，、及其魏有進一步的瞭 請參閲厂第;[圖」、厂第 為本發明第—實施」種弟3圏」及「第4圖」所示， 裝置係包討1顯繼’此—氣簾產生 置係用以產生一氣簾 g 〇。本發明（氣簾羞生裝 將—工作台50產生之污染源包圍，並 1320087 輔助一排氣機6〇將苄π，,L , ^ 阴_ f、排出，其中鼓風機10之數量並不受侷 ^ ^台π實際面積或容間逕行增加。 機1()域以產生—氣流，且鼓風機10具有-出風口 11 *風° 11係連通—導風管2G，其中鼓風機1〇產生 之=經”風.〇11吹送至導風管2〇内。 2G _—内部中空之f體，係肋承接鼓風機⑺產 其中導風管2〇包含有一封閉段21、一出風段22及一 引流管30。 如「第之圖，》r^c门· 弟5圖」所示，導風管20之封閉段21包 側211及一出口側212,其中入口側211係連通鼓風機 * 5 〇 11 ’使鼓風機10產生之氣流經由入口侧211吹入導 &中而出口側212則連通至導風管2〇之出風段22，使通 過封閉段21之氣流經由細（212吹人出風段22中。 閘門24係藉由—扭力彈簧25樞設於導風管20之内側管壁， 而使間門24位於鼓風機1G之出風口.11與導風管2()之封閉段土21 祕1 ’、中扭力彈簧25係具有—常態制Π24朝關出風口 11 、力乂支擇閘門24常態地關閉出風口 11，並使導風管20内 2體於閘門24 _出風σ.11時可由封閉段21流人引流管23。 虽政風機10啟動並吹 2_開啟狀態，以導鼓風機1〇吹出氣流則推動間門 出口側2U，並導化^導風管2〇之封閉段21的入口側211與 ❹。其中閘門24^機1〇產生之氣流吹入導風# 2〇之封閉 '卞β之曲面，使鼓風機丨〇產生之氣流順利地 1320087 導引並轉向，以降低氣流流動之阻力c 引流管30係連通導風管2〇之封閉段2】，並且設置 2!之入口側2】】與出口側212之間，而靠近入口㈣ 30係周以料位於封閉段2〗中之液體·至導風管⑼外。 導風管20之出風段22係承接通過賴段21之氣流，並且有 複數個供氣流吹出之出風孔221及一導引斜面切。出風段U之 出風孔221係依氣流流動路徑排列，並形成二排之排列方式，其 中相鄰排之各出風孔22i則系呈對應配置，以使個別自以觀 221吹出之氣流形成-氣簾7〇。前述出風孔221之配置方式係考 慮到氣流間互相牵引之效應’使分別自兩相鄰排之出風孔221吹 出之氣流互相吸引。 再者，導風官20之出風段22係被區分為一對應於封閉段21 之轉折區223及二分別具有一封閉端225之順流區224。其中透 過各區之出風孔221的孔徑大小或開設數量的變化配置下，使順 流區224之單位長度之總出風截面積係由封閉端225朝轉折區223 逐漸加大，而轉折區223之單位長度之總出風截面積係小於或等 於順流區224之單位長度之總出風截面積的最小值，藉以使轉折 區223及順流區224之氣流的流量能平均分布，避免氣流流動路 徑末端之出風孔221的氣流過度微弱而影響氣簾70之包圍效能。 前段所述之總出風截面積係為一區段中所有出風孔221之面 積的總合’而單位長度之總出風戴面積係為單位長度之出風段22 上的所有出風孔221之面積的總合。其中，出風段22之轉折區 223係為氣流流速較大之區域，所以此處可透過開設較小孔徑之 9 1320087 221來減少單位長度之總 出風虬〗或是開設數量較少的出風孔 出風戴面積。 和丨斜面拉係設置於出風段22之底部，係與水平面傾斜步 一角度，使液體因重力效應由導風管2〇之出風段22流向導風答 ’ 2G之封閉段21 ’藉以導引位於出風❹之液體流動進入封閉; • 21内，再透過引流管30將液體排出導風管2〇外。 · “請續參閱「第2圖」、「第6A圖」及「第6β圖」所示，圖中 •蜂巢柄施26係設置於賴段21之出口側212，並位於導風 管20之封閉段21與出風段22之間，使流入導風管2〇之封閉段 21的氣流先通過蜂巢式均流板26後，再流入導風管如之出風段 22。當氣流於導風管2G中流動時，因氣流與導風管2()管壁之摩 擦阻力影響，使靠近管壁表面之氣流流速會小於導風管Μ中央之 氣流流速，造絲.流的流量不均，而蜂巢式均流板26係用以對於 氣流進行整流，以穩定氣流之流場並使其流速均勻，使氣流流至 •導風管20之封閉段21的出口側212時呈接近穩流的狀態，而均 勻地流入導風管20之出風段22。 配風板27設置於導風管20之出風段22巾，並且對應於封閉 段21之出口側212，其中配風板27係用以分配由封閉段^之出 口側212 %出之氣流均勻地朝上及朝兩側吹出之流量，可使氣流 依預設的流量分別吹向上方之轉折區223及兩側之順流區222 : 配風板27可為但不侷限於一金屬網狀薄板，其型態可以是矩形、 圓形或菱形，其中配風板27上具有依配風量分布之通孔，以藉由 通孔之配置密度決定吹往各個方向氣流的流量。 1320087 請再參閱「第！圖」至「第63圖」所示，其中本實施例 簾產生裝置係設置於一工砟二ςΛ ， , ' , 又工I乍谷：>〇，ηπ工作台50係產生污染源並 具有-縣機6Q。職㈣錢置於項㈣之上方並具有一 對應工作台：>〇之排氣口 6卜且排氣機6〇係於攝氣口 Μ產生一 排氣抓I,亏染源自工作台5〇排出。本實施例中導風管％之出 風段22係形成—直線形，使氣簾產生裝置於丄作台50與排氣機 60之間衣&出-直線型之氣簾7Q，以配合具有三個封閉牆面之工 :台50使用。氣簾％係於工作台5〇與排氣機6〇之間形成—空 亂壁面，吨私作台5G產生之污_，避免㈣源朝工作台 )〇之開二面擴散’進而增加排氣機6〇對於污染源之捕集效率。σ 本貫施例之氣簾產生襄置雖然以應用於工作台50為例，但本 發明之應用範圍並不被侷限於此’此種氣簾產生裝置亦可應用於 常見的開放式冷藏展示櫃，如生鮮蔬果展示櫃或生鮮肉純示 櫃’以藉由氣簾70來隔離冷藏展示櫃内外^ 中低溫氣細,以維持冷藏展示㈣度並祕不植 請參閱「第4圖」及「第7圖」所示 =第二實施例中導風管20之出風段22的剖面示二圖:= =部第實=:第-_^ 处在於#一貝_中導風管2〇之出風段。酉己 & =機60之相對位置，而將出風段22之頂面細。斜、 =由出吹出之氣流便與工作台5。失一：^ 十所夹之傾斜角度係配合工作台5〇與排氣 '、又- 計，使氣簾7G _向排氣機6()之排氣際狀況設 人拂’並由導風管 1320087 以丨又“疋伸至排氣口 60之内側邊緣：籍以加強氣簾兀 、^ =喊動至職口 61之效果，進—賴 6〇排出 >5染源。 =「第"」所示，為本發明第三實施例中㊉風孔⑵之排 ' :痛，其中本實施例之細部實施方式大致與第一實施例相 ^ '者之差異僅在於出風孔221之排列方式。第三實施例中 奴22之出風孔221係依氣流流動路徑排列，並形成二排之排 •列方式’財相鄰排之各出風孔功間係呈交錯列置，使各出風 = 221吹出之氣流間產生更顯著的互相牽引效應，進一步增強氣 簾70之效果。 _ =「弟9圖」所示，為本發明第四實施例中出風孔221之排 列不意圖’其中本實施例之細部實施方式大致與第一實施例相 同而兩者之差異僅在於出風孔221之排列方式及排數。第四實 鞑例中出風|又22之出風孔221係依氣流流動路徑排列，並形成三 馨排之排列方式，.其中相鄰排之各出風孔221間係呈交錯列置，以 進一步增強氣簾70之效果。 如「第10圖」所示，為本發明第五實施例之立體示意圖，其 中本實施例之細部實施方式大致與第-實施W目同，不再贅述。 然而’第五實施例與第一實施例之差異之處在於氣簾產生裝置之 應用方式。.第五實施例中氣簾產生裝置係應用於長時間供應冷氣 之室内並且開關次數鮮的對外出口處，例如—般量販賣場的電 動門上方，令氣簾產生裝置於對外出口開放時啟動，以藉由氣簾 7〇形成空氣壁面避免室内與室外的空氣對流，而減少室内之冷氣 12 1320087 向室外流失，進而提高室内之冷房效率並節省電力。 如「第Γ1圖」所示’為本發明第六實施例之立體示意圖，| t本實施彳狀細部實财式大致與第—實制相同，不再賢述。 然而，第六實施例與第-實施例之差異之處在於導風管2g之出風 、 段22的設置型態’係由第一實施例中的直線型態改變為配合工作 •檯50週遭壁面的型態。第六實施例中導風管20之出風段22係形 成-L字形，而使導風管2〇之出風段22與工作台5()之壁面:成 •—封腿域，其巾導風管如之賴段21則位於出風段22之彎折 處。如此，氣簾產生裝置便於工作台5〇與排氣機6〇之間製造出 一 L型之氣簾7G，以配合具有二個封職面之工作台如使用。 如「第12圖」所示，為本發明第七實施例之立體示意圖，其 中本實施例之細部實施方式大致與第_實制_，不再費述。 而第七貝施例係由兩組如同第六實施例之氣簾產生裝置連接 而成，使各導風管20之出風段22相互連接成一 u字形，而使導 • 風&如之出風段22與工作台5〇之壁面形成一封閉區域 。如此， 兩氣簾產生裝置便於工作台5〇與排氣機6〇之間製造出一 u型之 氣簾70,以配合具有單一封閉牆面之工作台5〇使用。 如第13圖」所不，為本發明第八實施例之立體示意圖，其 中本實齡彳之細部實施方式大致與第—實劇_，不再費述。 ⑽’第人貫施例係由兩㈣同第六實施例之氣簾產生裝置連接 而成，使各導風f 2G之出風段22相互連減—封_形，而導 風管20=出風段22則與工作纟％之壁面形成一封閉區域。如 此兩氣簾產生裝置便於工作纟5〇與排氣機6〇之間製造出一封 !32〇〇87 ¥㈣之Ιι簾？G，α配合不具有賴牆面之工料5〇使羯t 如「第14圖」所示，為本發明第九實施例之立體示意圖，其 中本戶、％例之細部實施方式大致與第八實施例相同，不再贅述。 然而，第九貫施例中導風管2〇之封閉段21還設置有一配風箱28 及複數個配風官29 ’其中配風箱29連接於封閉段21及各配風管 二9的螭，而且各配風管29的—端連接於導風管2〇之出風段 22。配風箱28係用以分配由鼓風機1〇吹出之氣流，使氣流平均 屬地吹入各配風營29，然後再經由配風管29吹入導風管2〇之出風 段22。因此，在本實施例中蜂巢式均流板％(如「第2圖」所示） 是設置於各配風管29中鄰近出風段22處。 本發明之氣簾產生裝置中，導風管20之出風段22各區段之 ，'出風截面積係配合氣流流動特性配置，使形成氣簾％之氣流流 置均勻，而均流板26之設置更使進入各出風段22之氣流流量平 均可有效加強氣簾70之效能。此外，導風管2〇更設置有導引 •=面222及引流管30之設置’可導引工作台5〇上不慎流入導風 官20中之液體順利地排出’避免液體囤積於導風管如。 軸本發明贿述之實施例揭露如上，然其並非用以限定本 p。在不麟本發明之精神和範_，所為之更動與潤飾，均 本發明之專利保護範圍。關於本發明所界定之保護範圍請參考 所附之申請專利範圍。 【圖式簡單說明】 ―第！圖為本發明氣簾產生裝置巾第—實施例之立體示意圖； 第2圖為第1圖中氣簾產生裝置之剖面示意圖. 14 1320087 第3圖為第1圖中導風管之出風段的剖面示意圖； 第4圖為本發明之第一實施例中，氣簾產生裝置配置於工作 台之立體示意圖； 第5圖為本發明氣簾產生裝置之第一實施例中，出風孔之排 列示意圖； 第6A圖為本發明氣簾產生裝置中蜂巢式均流板之縱向剖面· 示意圖； 第6B圖為本發明氣簾產生裝置中蜂巢式均流板之橫向剖面 示意圖； 第7圖本發明氣簾產生裝置之第二實施例中，導風管之出風 段的剖面示意圖； 第8圖為本發明氣簾產生裝置之第三實施例中，出風孔之排 列示意圖； 第9圖為本發明氣簾產生裝置之第四實施例中，出風孔之排 列示意圖； 第10圖為本發明氣簾產生裝置中第五實施例之立體示意圖； 第11圖為本發明氣簾產生裝置中第六實施例之立體示意圖； 第12圖為本發明氣簾產生裝置中第七實施例之立體示意圖； 第13圖為本發明氣簾產生裝置中第八實施例之立體示意 圖；及 第14圖為本發明氣簾產生裝置中第九實施例之立體示意圖。 【主要元件符號說明】 10 鼓風機 15 13200871320087 IX. Description of the invention: [Technical jaw region to which the invention pertains] In particular, the present invention relates to an air curtain generating device for flow rate average of an air curtain generating device. [Prior Art] In the workplace where there will be harmful sources of pollution in Xuxi, such as workplaces with soot, volatile organic solvents, faults, dust or specific chemicals, all of them will be set up at the top of the workbench according to the demand of Shengsheng. Inspection, the sewage _ shooting discharge = vitamins and thin body. The most frequently corrected partial venting is the venting machine installed above the workbench's. However, the dowry of the levy machine will be extended by the lateral height of the silk machine (four), which will cause the exhaust effect. Not at all. For the solution of the second = then there will be a exhaust cabinet with a back wall, side wall and front sliding door. Although this type of milking cabinet can reduce the influence of the ambient crosswind, the size and operation of the table are caused by the exhaust = structure. The upper limb activity space is subject to the shipbuilding system. The design of the Lamen door is not convenient for the operation. The No. 456 patent case of the back card is proposed to have a side wall and a hood, and the ventilating device is provided between the workbench and the operator to the wall of the second movable wall. Airflow to guide the sewage 5 5042456 The author's upper limb activity space is called Jane, Lai and _ Yu, Qian Wei cover ventilation. Another 2 large increase, is not conducive to the promotion and popularization of future products. In the case of the Republic of China New Profits and Secrets No. 3 and the US Patent Notice No. 132〇〇s7 67)-i44唬, both cases mentioned a kind of auxiliary wedding machine, in which the smoke guiding machine corresponds to the exhaust machine setting, and The working prism row provides an upward air curtain, (4) the anti-staining _ recording the author direction and the work table side = scattered. It: The mechanical structure of the smoke detector of the heart (2) No. 44 case is complicated and the cost of parts is also high. Although the milk secret case No. 3 has a relatively simple mechanical structure, but for the front of the financial and derailed air flow, the Yang and the shirt are black, the durability of the basin, the type of device, and whether the airflow is It is also related to the effect of chaos. I. SUMMARY OF THE INVENTION The present invention provides an air curtain generating device, = an air outlet aperture or an air outlet, in view of the fact that the prior art does not take into account the problem of unevenness in the air and the difficulty in discharging the liquid in the air outlet q. The change in the number of holes is designed to improve the air volume unevenness problem. The sub-structure is provided with a liquid discharge air curtain generating device. In order to achieve the foregoing objects, the present invention provides an air curtain generating device, which comprises a small blower and an air guiding duct, wherein the air blower is used, and the air duct receives the gas generated by the air blower. Conducting, W ^ and conducting a < R gas rolling / Gong Feng official includes a closed wind section through which the airflow passes, wherein the domain section receives the airflow passing through the section and has a plurality of air outlet holes for blowing the airflow, and The air outlet holes are arranged in sequence according to the air flow path. The effluent section is divided into - a transition zone corresponding to the closed section and a downstream zone of at least one and closed end. , wherein the change of the aperture of the air outlet hole or the number of the air outlet hole is set to ten, the early position of the page grabbing area, and the total air outlet sectional area of the degree is from the closed end to the turning area, and the unit length of the turning area is The total outlet cross-sectional area is less than or equal to the minimum value of the total outgoing area of the early length of the steam, so that the airflow from the side hole 1320087 forms a uniform air curtain, thereby increasing the enveloping efficiency of the air curtain. In addition, the air outlet section of the air duct further includes a guiding slope, and the air guiding duct further has a drainage tube, wherein the guiding slope guides the liquid flowing in the air outlet section to the closed section, and the drainage tube guides The liquid in the closed section is discharged outside the air duct to avoid liquid accumulation in the wind guide. The effect of the invention is that the air outlet of the air duct is configured according to the flow characteristics of the air flow, so that the air outlet is blown out. The flow of the airflow is uniform and the enveloping effect of the air curtain is enhanced. The wind guide f is provided with a material slope and a drainage tube, and the liquid that can be inadvertently flowed into the air duct can be smoothly discharged. The detailed features and advantages of the present invention are described in detail below, and are sufficient to enable any (4) related art to understand the technical contents of the present invention and to implement palladium according to the contents of the present specification. The related objects and advantages of the present invention will be readily understood by those skilled in the art. ϋ 之 本 本 本 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町 町described as follows. ·, and its Wei have further refer to the factory; [Figure], the factory is the first invention of the invention - the implementation of the "3" and "4", the device is a package 'This—the air curtain is used to create an air curtain g 〇. The invention (the air curtain shyness equipment will be surrounded by the pollution source generated by the worktable 50, and 1320087 assists a ventilator 6 〇 Benz π,, L, ^ y _ f, discharge, wherein the number of blowers 10 is not subject to the situation ^ ^The actual area of π or the distance between the rows increases. Machine 1 () domain to generate - airflow, and blower 10 has - air outlet 11 * wind ° 11 system - air duct 2G, where the blower 1 〇 generated = warp" The wind 〇11 is blown into the air duct 2〇. 2G _-the inner hollow body, the rib bearing blower (7) is produced, wherein the air duct 2 includes a closed section 21, an air outlet section 22 and a drainage tube 30. As shown in the "figure diagram, "r^c door, brother 5", the closed section 21 of the air duct 20 has a side 211 and an outlet side 212, wherein the inlet side 211 is connected to the blower * 5 〇 11 ' The airflow generated by the air blower 10 is blown into the guide through the inlet side 211, and the outlet side 212 is connected to the air outlet section 22 of the air duct 2, so that the airflow passing through the closed section 21 passes through the fine (212 blown air outlet section 22). The gate 24 is pivoted on the inner tube wall of the air duct 20 by the torsion spring 25, and the door 24 is located at the air outlet of the blower 1G. 1 and the closed section of the air duct 2 () 21 secret 1 ', the middle torsion spring 25 has - the normal system 24 closes the air outlet 11 , the force slamming gate 24 normally closes the air outlet 11 and makes the wind guide When the tube 20 is in the gate 24 _ the outlet σ.11, the drainage tube 23 can be circulated by the closing section 21. Although the political fan 10 is activated and blows the 2_open state, the air blown by the air blower 1 推动 pushes the door exit The side 2U, and the inlet side 211 and the weir of the closed section 21 of the air duct 2 is guided, wherein the airflow generated by the gate 24 is blown into the curved surface of the wind guide # 2〇, so that the blower The airflow generated by the helium is smoothly guided and turned to 1320087 to reduce the resistance of the airflow flow. The drain pipe 30 is connected to the closed section 2 of the air duct 2, and the inlet side 2 of the 2! and the outlet side 212 are provided. Between the two, close to the inlet (four) 30 series of weeks to the liquid in the closed section 2〗 to the outside of the air duct (9). The air outlet section 22 of the air duct 20 receives the airflow through the lag section 21, and there are a plurality of The air outlet hole 221 and the air guiding hole 221 which are blown out by the air flow are arranged, and the air outlet holes 221 of the air outlet section U are arranged according to the air flow path, and are formed. The arrangement of the rows, wherein the air outlets 22i of the adjacent rows are arranged correspondingly, so that the airflow blown by the individual views 221 forms a gas curtain 7〇. The arrangement of the air outlet holes 221 is considered to be between airflows. The effect of mutual traction is to attract the airflows respectively blown out from the air outlets 221 of the two adjacent rows. Further, the wind outlet 22 of the wind guide 20 is divided into a turning zone 223 corresponding to the closed section 21 and 2, respectively, has a downstream region 224 of a closed end 225. The total outlet cross-sectional area per unit length of the downstream region 224 is changed from the closed end 225 by the change in the aperture size or the number of openings of the air outlet holes 221 of each region. The turning area 223 is gradually increased, and the total wind cross-sectional area per unit length of the turning area 223 is less than or equal to the minimum value of the total wind cross-sectional area per unit length of the downstream area 224, so that the turning area 223 and the downstream area 224 The flow rate of the airflow can be evenly distributed, and the airflow of the air outlet 221 at the end of the airflow flow path is prevented from being excessively weak, which affects the surrounding performance of the air curtain 70. The total outlet cross-sectional area described in the preceding paragraph is the sum of the areas of all the outlet holes 221 in a section, and the total outlet area per unit length is all the outlet holes on the outlet section 22 of the unit length. The sum of the area of 221. Wherein, the turning zone 223 of the air outlet section 22 is a region with a large airflow velocity, so that the total airflow per unit length can be reduced by opening a smaller aperture 9 1320087 221 or a smaller number of outlets can be opened. The wind hole is exposed to the wind. The slanting surface is disposed at the bottom of the wind outlet section 22, and is inclined at an angle to the horizontal plane, so that the liquid is flown by the windward section 22 of the air duct 2 by the gravity effect, and the closed section 21' of the wind 2G is used. The liquid flowing in the air outlet is guided into the closed; • 21, and then the liquid is discharged out of the air duct 2 through the drainage tube 30. · "Please refer to "Fig. 2", "6A" and "6th figure". In the figure, the honeycomb handle 26 is placed on the exit side 212 of the Lai section 21 and is located in the air duct 20. Between the closed section 21 and the outlet section 22, the airflow flowing into the closed section 21 of the air duct 2 is first passed through the honeycomb type flow plate 26, and then flows into the air duct such as the air outlet section 22. When the airflow flows in the air duct 2G, the airflow velocity near the surface of the air duct is smaller than the airflow velocity in the center of the air duct due to the frictional resistance of the airflow and the wall of the air duct 2, and the flow of the air is generated. The flow rate is uneven, and the honeycomb type flow plate 26 is used for rectifying the air flow to stabilize the flow field of the air flow and make the flow rate uniform, so that the air flow flows to the outlet side 212 of the closed section 21 of the air duct 20 It is in a state of being close to a steady flow, and uniformly flows into the wind outlet section 22 of the air duct 20. The air distribution plate 27 is disposed on the air outlet section 22 of the air duct 20 and corresponds to the outlet side 212 of the closed section 21, wherein the air distribution plate 27 is configured to distribute the airflow evenly from the outlet side of the closed section ^ The flow rate of the ground upwards and the two sides is blown, and the air flow is respectively blown to the upper turning zone 223 and the downstream flow zone 222 according to the preset flow rate: the air distribution plate 27 can be, but not limited to, a metal mesh thin plate The shape may be a rectangle, a circle or a diamond, wherein the air distribution plate 27 has a through hole distributed according to the air distribution, so that the flow rate of the airflow to each direction is determined by the arrangement density of the through holes. 1320087 Please refer to the "Graph!" to "63", in which the curtain generating device of the present embodiment is installed in a factory, two, , ', and I work in the valley: > 〇, ηπ table The 50 series produces a source of pollution and has a county machine 6Q. The position (4) money is placed above the item (4) and has a corresponding workbench: > the exhaust port 6 of the 〇 and the exhaust machine 6 〇 is attached to the air intake port to generate an exhaust catch I, the loss is caused by the workbench 5 〇 discharge. In the present embodiment, the air outlet section 22 of the air duct is formed in a straight line shape, so that the air curtain generating device is disposed between the processing table 50 and the exhaust machine 60, and the air curtain 7Q of the straight-line type is matched with three A closed wall work: Taiwan 50 is used. The air curtain% is formed between the workbench 5〇 and the exhaust machine 6〇—the empty wall surface, and the ton of the private table 5G produces the pollution _, avoiding the (four) source toward the workbench) Machine 6〇 capture efficiency for pollution sources. σ The air curtain generating device of the present embodiment is exemplified for application to the work table 50, but the scope of application of the present invention is not limited to this. The air curtain generating device can also be applied to a common open refrigerated display case. For example, fresh fruit and vegetable display cabinets or pure meat display cabinets are used to isolate the inside and outside of the refrigerated display cabinets with air curtains 70 to maintain the refrigerated display (four degrees) and not to be planted. Please refer to "Fig. 4" and "7th. Figure 2 is a cross-sectional view showing the air outlet section 22 of the air duct 20 in the second embodiment: = = part of the real =: the first - _ ^ is located in the #一贝_中管管2〇出出Wind section.酉 own & = relative position of the machine 60, and the top surface of the wind section 22 is thin. Oblique, = the airflow blown out from the workbench. Lost one: ^ The inclination angle of the ten clamps is matched with the 5th and exhaust of the workbench, and the meter is used to make the air curtain 7G _ to the exhaust condition of the exhaust machine 6 () and the air duct 1320087 Then 疋 疋 疋 至 至 至 至 内侧 60 60 60 60 60 60 60 : : : : : : : : : : : : : : : : : : : 排气 60 60 60 60 60 60 60 60 60 60 60 排气 60 60 60 60 排气As shown in the third embodiment of the present invention, the row of the ten wind holes (2) is painful, wherein the detailed embodiment of the present embodiment differs from the first embodiment only in the arrangement of the air outlet holes 221. the way. In the third embodiment, the outlet holes 221 of the slaves 22 are arranged according to the flow path of the airflow, and the rows of the rows of the two rows are arranged in a staggered arrangement, so that the winds are arranged in a staggered manner. = 221 The airflow that is blown out produces a more pronounced mutual traction effect, further enhancing the effect of the air curtain 70. _ = "Figure 9" shows that the arrangement of the air outlet holes 221 in the fourth embodiment of the present invention is not intended to be the same. The detailed embodiment of the present embodiment is substantially the same as the first embodiment, and the difference between the two is only The arrangement of the air holes 221 and the number of rows. In the fourth example, the wind outlets of the second embodiment are arranged according to the flow path of the airflow, and the arrangement of the three rows is formed, wherein the air outlets 221 of the adjacent rows are staggered. To further enhance the effect of the air curtain 70. As shown in Fig. 10, it is a perspective view of a fifth embodiment of the present invention, and the detailed embodiment of the present embodiment is substantially the same as that of the first embodiment, and will not be described again. However, the difference between the fifth embodiment and the first embodiment lies in the manner in which the air curtain generating device is applied. In the fifth embodiment, the air curtain generating device is applied to an external outlet where the cold air is supplied for a long time and has a few switching times, for example, above the electric door of the general-purpose supermarket, so that the air curtain generating device is activated when the external outlet is opened, so as to borrow The air curtain wall is formed by the air curtain 7〇 to avoid air convection between the indoor and outdoor, and the indoor air conditioner 12 1320087 is reduced to the outside, thereby improving the efficiency of the indoor cold room and saving electricity. As shown in the "Fig. 1", the present invention is a three-dimensional schematic diagram of the sixth embodiment of the present invention, and the present embodiment is substantially the same as the first embodiment, and is no longer described. However, the difference between the sixth embodiment and the first embodiment is that the air outlet of the air duct 2g and the setting pattern of the section 22 are changed from the straight type in the first embodiment to the mating work. The type of wall. In the sixth embodiment, the air outlet section 22 of the air duct 20 forms an L-shape, and the air outlet section 22 of the air duct 2 and the wall surface of the table 5 () are formed into a leg-seal field. The air duct is located at the bend of the wind outlet section 22 as it is. Thus, the air curtain generating device facilitates the manufacture of an L-shaped air curtain 7G between the table 5 and the exhaust unit 6 to cooperate with a work table having two sealing faces. As shown in Fig. 12, it is a perspective view of a seventh embodiment of the present invention, and the detailed embodiment of the present embodiment is substantially the same as the first embodiment, and will not be described again. The seventh shell embodiment is formed by connecting two sets of air curtain generating devices as in the sixth embodiment, so that the air outlet sections 22 of the air guiding ducts 20 are connected to each other in a U shape, so that the wind and the air are discharged. The wind section 22 forms a closed area with the wall of the table 5〇. Thus, the two air curtain generating device facilitates the manufacture of a u-shaped air curtain 70 between the table 5 and the exhaust unit 6 to cooperate with the table 5 having a single closed wall. FIG. 13 is a perspective view showing an eighth embodiment of the present invention, and the detailed embodiment of the present invention is substantially the same as the first actual version, and will not be described. (10) The first embodiment is connected by two (four) to the air curtain generating device of the sixth embodiment, so that the wind outlets 22 of the wind guides f 2G are connected to each other in a reduced-sealing manner, and the air duct 20 is out. The wind section 22 forms a closed area with the wall of the work 纟%. For example, the two air curtain generating devices are easy to work with 纟5〇 and the exhaust machine 6〇 to create a !32〇〇87 ¥(4) Ι 帘 ?? G, α cooperates with the material that does not have the wall surface. As shown in Fig. 14, it is a three-dimensional diagram of the ninth embodiment of the present invention, wherein the embodiment of the household and the % example is roughly the eighth The embodiments are the same and will not be described again. However, in the ninth embodiment, the closed section 21 of the air duct 2 is further provided with a bellows 28 and a plurality of air distribution members 29', wherein the air distribution box 29 is connected to the closed section 21 and the air distribution ducts 2螭, and the end of each air distribution duct 29 is connected to the air outlet section 22 of the air duct 2〇. The air distribution box 28 is for distributing the airflow blown by the air blower 1 , so that the air flow is blown into the air distribution dams 29 on average, and then blown into the air outlet section 22 of the air duct 2 via the air distribution duct 29. Therefore, in the present embodiment, the honeycomb type equalizing plate % (as shown in "Fig. 2") is disposed in each of the distribution ducts 29 adjacent to the air outlet section 22. In the air curtain generating device of the present invention, in each section of the air outlet section 22 of the air duct 20, the 'air exit sectional area is arranged in accordance with the airflow flow characteristic, so that the airflow forming the air curtain% is uniformly distributed, and the flow equalizing plate 26 is The arrangement makes the flow rate of the airflow entering each of the air outlet sections 22 evenly effective to enhance the performance of the air curtain 70. In addition, the air guiding duct 2 is further provided with a guiding surface 222 and a setting of the drainage tube 30, which can guide the liquid inadvertently flowing into the air guiding unit 20 on the table 5 to smoothly discharge the liquid to avoid liquid accumulation in the guide. Ducts such as. The embodiment of the present invention is disclosed above, but it is not intended to limit the present. In the spirit and scope of the present invention, the scope of the invention is protected and modified. Please refer to the attached patent application scope for the scope of protection defined by the present invention. [Simple description of the schema] - "! Figure 1 is a perspective view of the air curtain generating device of the present invention; Figure 2 is a schematic cross-sectional view of the air curtain generating device of Figure 1. 14 1320087 Figure 3 is a cross section of the air duct of the air duct in Figure 1. 4 is a schematic perspective view of the air curtain generating device disposed on the workbench in the first embodiment of the present invention; FIG. 5 is a schematic view showing the arrangement of the air outlet holes in the first embodiment of the air curtain generating device of the present invention; 6A is a longitudinal cross-section and a schematic view of a honeycomb-type flow equalizing plate in the air curtain generating device of the present invention; FIG. 6B is a transverse cross-sectional view of the honeycomb-type current sharing plate in the air curtain generating device of the present invention; 2 is a schematic cross-sectional view of an air outlet section of an air duct; FIG. 8 is a schematic view showing an arrangement of air outlet holes in a third embodiment of the air curtain generating apparatus of the present invention; 4 is a schematic view showing an arrangement of air outlet holes; FIG. 10 is a perspective view showing a fifth embodiment of the air curtain generating device of the present invention; and FIG. 11 is a sixth embodiment of the air curtain generating device of the present invention. Figure 12 is a perspective view of a seventh embodiment of the air curtain generating device of the present invention; Figure 13 is a perspective view of an eighth embodiment of the air curtain generating device of the present invention; and Figure 14 is a gas curtain generating device of the present invention A perspective view of a ninth embodiment. [Main component symbol description] 10 blower 15 1320087
11............... ..............出風口 20............... ..............導風管 ................ ..............封閉段 ^11.............. ..............入σ側 212.............. ..............出口側 ?? ..............出風段 221.............. ..............出風孑L 222.............. ..............導引斜面 223.............. ..............轉折區 224.............. ..............順流區 225 .............. ..............封閉端 24................ ..............閘門 25................ ..............扭力彈簧 26................ ..............蜂巢式均流板 27..............:. ..............酋己盾1沐反 28................ 29................ ..............酋己ϋΐ管 30................ ..............引流管 50................ ..............工作台 60................ ..............排氣機 61................ ..............排氣口 70................ ..............氣簾 1611.................................Outlet 20............... ............air duct..................................closed section ^11. ............................... into the σ side 212.................... .........export side??..............wind section 221.................... .........出风孑 L 222...................................... Guide slant 223.... .......... ...................turning area 224.......................... ..... downstream area 225 ................................ closed end 24........... ..... ..............gate 25................................ Torsion springs 26.................................. Honeycomb type flow plates 27.......... ....:. ..............Emirates Shield 1 Mu counter 28................ 29... ................................................................................................................ .........Drainage tube 50..................................Workbench 60..... ........... ..............Exhaust machine 61...................... .........exhaust port 70..................................Air curtain 16