200920700 九、發明說明： 【發明所屬之技術領域】 本發明係關於適用於燃燒煤炭、原油及重油等之發電設 備之排煙脫硫裝置之排水處理’特別係關於對用海水法脫 硫之排煙脫硫裝置之排水（已用海水）藉由曝氣脫二氧化碳 (曝氣）之曝氣裝置。 【先前技術】 先前’以煤炭或原油等為燃料之發電設備中，鍋爐所排 出之燃燒排放氣體（以下稱為「鍋爐排氣」），係除去銷爐 排氣中所含之二氧化硫（s〇2)等硫氧化物（S0x)後排放到大 氣中。實施此等脫硫處理之排煙脫硫裝置之脫硫方法，已 知有石灰石石膏法、半乾式滌氣法及海水法。 其中，採用海水法之排煙脫硫裝置（以下稱為「海水脫 硫裝置」）係使用海水作為吸收劑之脫硫方法。該方法係 藉由將海水及鍋爐排氣供給至例如大致圓筒狀之筒形縱置200920700 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a drainage treatment of a flue gas desulfurization apparatus suitable for power generation equipment for burning coal, crude oil and heavy oil, 'particularly for the desulfurization of seawater by desulfurization Drainage of the flue gas desulfurization device (already used seawater) Aeration device for decarbonation (aeration) by aeration. [Prior Art] In the power generation equipment that uses coal or crude oil as fuel, the combustion exhaust gas discharged from the boiler (hereinafter referred to as "boiler exhaust") removes sulfur dioxide contained in the exhaust gas of the pin furnace (s〇 2) Emission of sulfur oxides (S0x) to the atmosphere. A limestone gypsum method, a semi-dry scrubbing method, and a seawater method are known as a desulfurization method for a flue gas desulfurization apparatus which performs such desulfurization treatment. Among them, a flue gas desulfurization device using seawater method (hereinafter referred to as "seawater desulfurization device") is a desulfurization method using seawater as an absorbent. The method is provided by supplying seawater and boiler exhaust gas to, for example, a substantially cylindrical cylindrical shape.
脫硫塔（吸收塔）内部，將海水作為吸收液進行濕式基之氣 液接觸，除去硫氧化物。 在前述脫硫塔内作為吸收劑使用之脫硫後海水（已用海 水），例如如圖 8所示’在水路（seawater 〇xidati〇n TreatmentInside the desulfurization tower (absorption tower), seawater is used as an absorption liquid to make a wet-based gas-liquid contact to remove sulfur oxides. Desulphurized seawater (used seawater) used as an absorbent in the aforementioned desulfurization tower, for example, as shown in Fig. 8 'in the waterway (seawater 〇xidati〇n Treatment)
System; SOTS) i内流動排水時，藉由從設於水路i之底面 1 a之曝氣裝置1 〇中流出微細氣泡2之曝氣進行脫二氧化碳 (曝氣）。 圖9及圖10係先前之曝氣裝置1〇之示意圖，連結於空氣 供給f 11之頭部12設置於水路1之底面丨a，各頭部丨2上等 13269I.doc 200920700 間隔安裝有多數個與底面13大致平行水平配置之曝氣喷嘴 13。該曝氣喷嘴13係於包覆基材周圍之橡膠製軟管上設有 多數小缺口（未圖示），一般稱為「擴散噴嘴」。該曝氣噴嘴 1 3藉由從空氣供給管丨i所供給之空氣壓力使軟管膨脹時， 可張開缺口使大致均等大小之微細氣泡大量流出。 另，將使用海水法脫硫之排煙脫硫裝置之排水（已用海 水）藉由曝氣進行脫二氧化碳（曝氣）之曝氣裝置中，關於曝 氣喷嘴之設置至今未在已開示之技術文獻中找到。 【發明内容】 但’前述先前之曝氣裝置1〇 ’比如如圖9所示，係構造 成對於水路1之底面la之整個底面等間隔配置曝氣噴嘴 13。如此之曝氣喷嘴13之等間隔配置，其目的在於使水路 底面之每單位面積大致均勻地產生進行曝氣之微細氣泡 1。 另一方面，在已用海水所流入之水路1之上游入口部， 有水路1之左右寬度方向具有不同海水性狀（比如pH值等） 之情形。 但，等間隔配置曝氣噴嘴13之先前構造，有於每個等間 隔配置之曝氣噴嘴13形成局部循環流之傾向，故於處理在 海水性狀不同狀態下流入水路1之已用海水之情形，難以 於水路1之左右寬度方向上產生已用海水之混合，存在產 生海水性狀不均一之混合不足問題。 即’曝氣噴嘴13遍及整個底面la等間隔配置之情形，比 如如圖11所示，每個曝氣喷嘴13或鄰接的曝氣喷嘴13成為 132691.doc 200920700 1個單7L ’產生與微細氣泡2 —同朝向水面之上升流f a，同 時為補充所上升之底部側已用海水，產生從水面側流向底 面1 a之下降流fb。因此，已用海水整體一面形成複數個由 上升流fa及下降流fb所構成之局部循環流，一面流向水路丄 之下游側。 因此，水路1之左右寬度方向上，難以形成已用海水整 體之大循％流，故左右具有不同海水性狀時難以進行混 合。如此之混合不足，使得排人鄰近海域之已用海水之海In the case of flow drainage in the system; SOTS, decarbonation (aeration) is performed by aeration of the fine bubbles 2 from the aeration device 1 设 provided on the bottom surface 1 a of the water path i. 9 and FIG. 10 are schematic views of the prior aerator 1 , the head 12 connected to the air supply f 11 is disposed on the bottom surface 丨 a of the water channel 1 , and each head 丨 2 is attached to the 13269I.doc 200920700 interval. The aeration nozzles 13 are disposed substantially horizontally parallel to the bottom surface 13. The aeration nozzle 13 is provided with a plurality of small notches (not shown) on a rubber hose surrounding the coated substrate, and is generally referred to as a "diffusion nozzle". When the aeration nozzle 13 expands the hose by the air pressure supplied from the air supply pipe 丨i, the notch can be opened to cause a large amount of fine bubbles of substantially equal size to flow out. In addition, in the aeration device for decarbonation (aeration) by aeration using a seawater-based desulfurization flue gas desulfurization device, the setting of the aeration nozzle has not been shown yet. Found in the technical literature. [Brief Description of the Invention] However, the aforementioned aeration device 1A' is configured such that, as shown in Fig. 9, the aeration nozzle 13 is disposed at equal intervals to the entire bottom surface of the bottom surface la of the water path 1. Such an equal arrangement of the aeration nozzles 13 is intended to cause the aeration of the fine bubbles 1 to be substantially uniformly generated per unit area of the bottom surface of the water passage. On the other hand, in the upstream inlet portion of the water passage 1 into which the seawater has flowed, there is a case where the left and right width directions of the water passage 1 have different seawater properties (e.g., pH value, etc.). However, the prior configuration of the aeration nozzles 13 is equally spaced, and there is a tendency for the aeration nozzles 13 arranged at equal intervals to form a partial circulation flow, so that the seawater flowing into the waterway 1 in different states of seawater is treated. It is difficult to produce a mixture of used seawater in the width direction of the water passage 1, and there is a problem of insufficient mixing of the seawater property. That is, the 'aeration nozzle 13 is disposed at equal intervals throughout the entire bottom surface la, for example, as shown in FIG. 11, each aeration nozzle 13 or the adjacent aeration nozzle 13 becomes 132691.doc 200920700 1 single 7L 'produces with fine bubbles 2 - the upward flow fa toward the water surface, and at the same time supplementing the rising seawater on the bottom side, generating a downward flow fb flowing from the water surface side to the bottom surface 1a. Therefore, a plurality of partial circulation flows composed of the upward flow fa and the downward flow fb are formed on the entire surface of the seawater, and flow to the downstream side of the water passage 一面. Therefore, in the width direction of the water path 1, it is difficult to form a large flow rate of the whole seawater used, so that it is difficult to mix when the left and right sides have different seawater properties. This lack of mixing makes it possible to arrange the sea of used sea water adjacent to the sea.
M生狀產生不均勾等’導致脫二氧化碳性能下$，或為使 脫二氧化碳性能均一，需要延長水路1使可充分混合。 本發明係H於前述情況而完成者，其目的在於提供一種 曝氣裝置 海水之左右寬度方向 其在水路中流動之已用 上’可實現良好混合。 本發明為解決前述問題，採用下述裝置。 本發明之曝氣裝置，盆砵料/ 其特徵在於：其係設於從以海水！ 吸收劑之排煙脫硫裝置之脫 … < 直之脫石後塔中排出之已用海水所流鸯 排水之水路中，使微細氣 一 β 孔泡產生在珂述已用海水中進行期 一氧化石厌者；並且，在脾、击、£从士 > 在將連通於空氣供給配管之頭部設置 於刖述水路之底面且#你 a ^ 、 " 女裝於别述頭部之曝氣喷嘴產生 刖述微細氣泡之曝氣單元# 、 „ 甲 σ又有开> 成局部不產生前述料 細氣泡的底面區域之無喷嘴部。 二瑕1供給配管之頭部 之曝氣喷嘴產生微細 生微細氣泡的底面區 根據該曝氣裝置，因為在將連通於 »又置於水路之底面且使從安裝於頭部 氣泡之曝氣單元中設有形成局部不產 132691.doc 200920700 域之無噴嘴部，故產生 產生微細氣泡之無喷嘴==區域形成上升流’且不 水路之已用海水，在水路:=:=。因此，流動於 寬度之大抵炉士 之左右寬度方向上形成遍及水路 ,^ 故該循環流促進已用海水整體之混合。 此情形下之盔喰喈卹 ‘、，、唷嘴。卩，可沿水路左右寬度方向中之任意 一方之側壁連續設置戋間 ]斷配置。另，該情形下之無噴嘴 °p亦可沿左右側壁交互間斷配置。 r L· 前述曝氣裝置中，宜於水路寬度方向上設有朝水路流動 方向延伸之分隔構件’以分割前述微細氣泡之產生區域與 不產生區域，該分隔構件宜容許前述已用海水之水面側及 底面側之水路寬度方向之流動，由此，可更進—步促進遍 及水路寬度方向之大循環流之形成。 前述曝氣裝置中，前述曝氣噴嘴宜為自前述頭部朝敍直 方向向上延伸之鉛直配置，由此，可增加水路底面之每單 位面積之曝氣噴嘴設置根數。 根據前述本發明，因為藉由設置無噴嘴部，使產生微細 氣泡之區域形成上升流，不產生微細氣泡之無噴嘴部區域 形成下降流，故流動於水路之已用海水在水路之左右寬度 方向上可形成遍及水路寬度之大循環流。該循環流之形成 因促進已用海水整體之混合，故流入水路之已用海水即使 在水路寬度方向之左右具有不同海水特性，亦不會混合不 足。由此，通過曝氣裝置排入鄰近海域之已用海水之海水 性狀’可以整體大致均一化之狀態排水’因此無喷嘴部之 設置可大幅提高脫二氧化碳性能。 132691.doc 200920700 另，曝氣裝置之脫二氧化碳性能提高，可縮短實施—定 脫二氧化碳所需要之水路長度，因此亦能獲得減低水路設 置費用及設置空間之效果。 【實施方式】 以下’基於圖式對本發明之曝氣裝置之一實施形態進行 說明。 圖1及圖2A所示之第1實施形態中，曝氣裝置1〇A係設於 從比如以海水為吸收劑之排煙脫硫裝置之脫硫塔（未圖示） 中排出之脫硫後海水（以下稱「已用海水」）所流動朝向周 邊海域排水之水路（SOTS) 1内部。該曝氣裝置丨〇A，使在 水路1内流動之已用海水中產生多數微細氣泡進行脫二氧 化碳（曝氣）。 曝氣裝置1 0A經由空氣供給管11與設於水路1外部之空氣 供給源（未圖示）連接。空氣供給管丨丨之另一端連結有沿水 路1之底面la分佈之頭部12。 頭部12於底面la之流動方向及寬度方向上分岔。於頭部 1 2之側面，沿水平方向安裝有多數個稱為「擴散噴嘴」之 曝氣喷嘴13。即，本實施形態之曝氣裝置丨〇A，將與空氣 供給管11連通之頭部12設置於水路丨之底面la，此外，使 從缺口 14產生大量微細氣泡之複數個曝氣噴嘴13從頭部q 之兩側面沿底面la朝水平方向延伸進行水平配置安裝。 此處，對曝氣噴嘴13之構造進行簡單說明。 曝氣噴嘴13，比如如圖2B所示，通過凸緣15安裝於頭部 12之側面。另，設置於已用海水中之空氣供給管u及頭部 132691.doc - 10- 200920700 12，考慮到耐蝕性等而使用樹脂製管等。 曝氣喷嘴13之構成，考慮到對已用海水之耐蝕性，使用 樹脂製之大致圓筒形狀之基材16，且以包覆該基材16之外 周之方式被覆形成有多數缺口 14之橡膠製軟管17後，將左 右兩端部藉由金屬線或膠帶等連結構件18進行固定。另， 前述缺口 14在未受到壓力之通常狀態下閉合。 基材16之一端在安裝於頭部12之狀態下，為使空氣可導 入，經由貫通頭部12及凸緣15之空氣導入口 19與頭部内部 連通。然後，基材16之内部，藉由設於軸向中途之分隔板 16a將其左右方向進行分割，藉由該分隔板i6a阻止空氣流 通。此外，在該分隔板l6a之頭部12側之基材16側面，開 口有二氣出口 16b，該空氣出口 i 6b係用以使空氣朝軟管i 7 之内周面與基材外周面之間，即對軟管17加壓使其膨服之 加壓空間21流出。由此’從頭部12向曝氣喷嘴⑽入之空 氣流動’ > 圖中箭縣所示，從空氣導人口19向基材16之 内邛抓入後，從側面之空氣出口 i 6b向加壓空間2 1流出。 广另，連結構件18係將軟管17固定於基材16，且防止從空 氣出口 16b流入之空氣從兩端部漏出。 如此結構之曝氣噴嘴13，從頭部12通過空氣導入口 Μ流 入之：氣，通過空氣出口 16b向加壓空間21流出，由於缺 u呈閉合狀態，故停留於加壓空間内使内壓上升。其 結果’軟管受加壓空間21内之麈力上升而膨脹，使形成 於軟管17上之缺口 14張開，藉此使空氣之微細氣泡流出至 已用海水中。如此之微細氣泡之產生，在經由空氣供給管 132691.doc 200920700 11及頭部12接受空氣供給的所有曝氣喷嘴丨3中實施。 又，藉由前述頭部12及曝氣喷嘴13構成之曝氣單元2〇， 在流路寬度W之水路1中，以覆蓋保留有左右寬度方向之 一部分之底面la之單元設置寬度冒3之方式進行設置。然 後，在流路寬度W之水路】中，未設置曝氣單元2〇之未設 置部寬度Wb之區域為無嘴嘴部3〇。 即，在連通於空氣供給配管n之頭部丨2設置於水路1之 底面la且使安裝於頭部12之曝氣喷嘴13產生微細氣泡之曝 氣單元20中，叹有形成局部不產生微細氣泡之底面區域之 無噴嘴部30。該情形之無噴嘴部3〇，在水路丨之左右寬度 方向上，沿任意一方之側壁連續設置。 根據如此之曝氣裝置1〇Α，因為從安裝於頭部12之曝氣 嗔嘴13產生微細氣泡之曝氣單元2()具備形成局部不產生微 細氣泡之底面區域之無噴嘴部3〇，&從曝氣喷嘴13產生微 細氣泡之單S設置寬度1之區域中，形成有與微細氣泡 同向水面上升之已用海水之上升流（圖1之箭頭h)。 另一方面，因前述已用海水之上升流，水路丨之底面u 側已用海水減少，為補充該減少4，不產生微細氣泡之無 噴嘴部30區域就形成下降流（圖1之箭頭Fb)。該情形下之 下降流，形成於沿水路i之側壁形成之無噴嘴部3〇。 因此，水路1内，設有曝氣單元2〇之單元設置寬度^之 上升流與作為無噴嘴部3〇之未設置部寬度爲之下降流成 為一體，流動於水路1之已用海水，遍及水路截面之大致 全體形成大旋轉循環流。如此’流動於水路工之已用海 132691.doc 12 200920700 水’在水路1之左右寬度方向形成遍及流路寬度w之大循 環流’該循環流促進已用海水整體之混合。 下面，如圖3所示之第2實施形態，在水路寬度方向上設 置有朝水路1之流動方向延伸之分隔構件40，以分割產生 微細氣泡之單元設置寬度Wa之區域與不產生微細氣泡之 未設置部寬度Wb之區域。另，對於其他結構，因為與前 述第1實施形態相同，故以下對於相同結構及構件之詳細 說明予以省略。 分隔構件40，係分割比如水路！之左右寬度方向之板狀 構件，其设置於水路1之高度（深度）方向，容許已用海水之 水面側與底面側之水路寬度方向之流動，同時截斷中間部 分之流動地分割。 其結果，水路1内形成之循環流，以分隔構件40為分界 明確分成上升流與下降流，可更進一步促進遍及水路i之 流路寬度W之大循環流之形成。 下面，圖4及圖5所示之第3實施形態，代替水平配置之 曝氣喷嘴13，採用鉛直配置之曝氣喷嘴13A。另，與前述 實施形態相同部分標記相同符號，其詳細說明予以省略。 該實施形態中，因為採用鉛直配置曝氣噴嘴13A之曝氣 單元20A，故可增加水路丨之每單位面積之噴嘴設置根數。 因此，水路1之流路寬度貿或產生微細氣泡之空氣量等各 種條件相同時，設置曝氣單元20A之單元設置寬度Wa，可比 水平配置之情形小（Wa，<Wa)。因此，無噴嘴部3〇A之未設 置部寬度wb，可設定比水平配置之情形大（Wb，>Wb)。 132691,doc 200920700 如此’通過採用鉛直配置之 士々„ 1〈曝乳噴嘴13A，使形成上升 抓之早几設置寬度Wa丨與形成 L ,, 取卜降流之未設置部寬度Wb'之 :近…。因此，流動於水路丨之已用海水，可容易 且確實地形成遍及流路寬度W之大猶環流，可更進一步促 進已用海水之混合。 接著’前述各實施形態之第i變形例如圖6所示，第2變The M-like shape produces uneven hooks, etc., resulting in a decarbonation performance of $, or in order to make the decarbonation performance uniform, it is necessary to extend the water path 1 so that it can be sufficiently mixed. The present invention is completed in the foregoing case, and an object thereof is to provide an aeration device in which the left and right width directions of the seawater flow in the water path have been used to achieve good mixing. In order to solve the aforementioned problems, the present invention employs the following means. The aeration device of the present invention, the pot material / is characterized in that it is set in the seawater from the sea! Degassing of the exhausting and desulfurizing device of the absorbent... < In the waterway where the seawater discharged from the tower is discharged from the tower, the fine gas-β-bubble is generated in the seawater The oxidized stone is annoying; and, in the spleen, the stalk, the stalk, the head that is connected to the air supply pipe is placed on the bottom surface of the narration waterway and #你 a ^ , " The aeration nozzle generates an aeration unit # which cites the microbubbles, „ a σ σ opens, and a nozzle-free portion that does not generate the bottom surface region of the fine bubble. The aeration nozzle of the head of the supply pipe The bottom surface region for generating fine micro-bubbles is according to the aeration device, because it is placed in the bottom surface of the waterway and is disposed in the aeration unit installed in the head bubble to form a local non-production 132691.doc 200920700 domain Since there is no nozzle portion, there is no nozzle which generates fine bubbles == region forms an upward flow' and the seawater that is not in the water path is in the water channel: =:=. Therefore, the flow is formed in the width direction of the furnace. Through the waterway, ^ The flow promotes the mixing of the whole seawater. In this case, the helmet is smashed, ', and the mouth is smashed. 卩, the side wall of any one of the left and right width directions of the waterway can be continuously set. The lower nozzle No.p can also be intermittently arranged along the left and right side walls. r L· In the aeration device, it is preferable to provide a partition member that extends in the direction of the water flow in the direction of the water passage to divide the generation region of the microbubbles and The partition member is preferably allowed to flow in the water passage width direction of the water surface side and the bottom surface side of the seawater used, whereby the formation of a large circulation flow in the water passage width direction can be further promoted. In the above, the aeration nozzle is preferably a vertical arrangement extending upward from the head in the straight direction, thereby increasing the number of aeration nozzles per unit area of the bottom surface of the water passage. According to the present invention, In the nozzleless portion, the region where the fine bubbles are generated forms an upward flow, and the nozzleless region where no fine bubbles are generated forms a downward flow, so that it flows into the waterway. The seawater can form a large circulating flow over the width of the waterway in the width direction of the waterway. The formation of the circulating flow promotes the mixing of the whole seawater, so the used seawater flowing into the waterway has different seawater even in the direction of the waterway width. The characteristics are not insufficiently mixed. Therefore, the seawater property of the used seawater discharged into the adjacent sea area by the aeration device can be drained in a state of being substantially uniform as a whole, so that the nozzleless portion can greatly improve the decarbonation performance. .doc 200920700 In addition, the decarbonation performance of the aeration device is improved, and the length of the water path required for the implementation of carbon dioxide removal can be shortened, so that the effect of reducing the waterway installation cost and the installation space can be obtained. [Embodiment] The following is based on the schema. An embodiment of the aeration device of the present invention will be described. In the first embodiment shown in Fig. 1 and Fig. 2A, the aeration device 1A is desulfurized and discharged from a desulfurization tower (not shown) such as a flue gas desulfurization device using seawater as an absorbent. The post-seawater (hereinafter referred to as "used seawater") flows into the waterway (SOTS) 1 of the surrounding sea area. The aeration device 丨〇A generates a plurality of fine bubbles in the used seawater flowing in the water path 1 to perform decarburization (aeration). The aeration device 10A is connected to an air supply source (not shown) provided outside the water path 1 via the air supply pipe 11. The other end of the air supply pipe is connected to a head portion 12 which is distributed along the bottom surface la of the water pipe 1. The head portion 12 branches in the flow direction and the width direction of the bottom surface la. On the side of the head 12, a plurality of aeration nozzles 13 called "diffusion nozzles" are mounted in the horizontal direction. In other words, in the aeration device 丨〇A of the present embodiment, the head portion 12 that communicates with the air supply pipe 11 is provided on the bottom surface la of the water passage ,, and a plurality of aeration nozzles 13 that generate a large number of fine bubbles from the notch 14 are decapitated. The two sides of the portion q extend horizontally along the bottom surface la to be horizontally mounted. Here, the configuration of the aeration nozzle 13 will be briefly described. The aeration nozzle 13, for example, as shown in Fig. 2B, is attached to the side of the head portion 12 via a flange 15. Further, the air supply pipe u and the head portion 132691.doc - 10-200920700 12 which are installed in the seawater used are made of a resin pipe or the like in consideration of corrosion resistance and the like. In the configuration of the aeration nozzle 13, a substantially cylindrical substrate 16 made of resin is used in consideration of the corrosion resistance of the seawater used, and the rubber having a plurality of notches 14 is coated so as to cover the outer periphery of the substrate 16. After the hose 17 is manufactured, the left and right end portions are fixed by a connecting member 18 such as a metal wire or a tape. Further, the aforementioned notch 14 is closed in a normal state where it is not subjected to pressure. One end of the base material 16 is in contact with the inside of the head through the air introduction port 19 penetrating the head portion 12 and the flange 15 in a state where it is attached to the head portion 12. Then, the inside of the base material 16 is divided in the left-right direction by the partition plate 16a provided in the axial direction, and the partition plate i6a prevents air from flowing. Further, on the side of the substrate 16 on the head portion 12 side of the partitioning plate 16a, a two-gas outlet 16b is opened, and the air outlet i6b is used to make the air toward the inner circumferential surface of the hose i7 and the outer peripheral surface of the substrate. In between, that is, the pressurized space 21 for pressurizing the hose 17 is discharged. Thus, 'the flow of air from the head 12 to the aeration nozzle (10)' is shown in the arrow count in the figure, and after the air-conducting population 19 is grasped into the inside of the substrate 16, the air outlet i 6b is added from the side. The pressure space 2 1 flows out. Further, the connecting member 18 fixes the hose 17 to the base material 16 and prevents air flowing in from the air outlet 16b from leaking from both end portions. The aeration nozzle 13 having such a configuration flows in from the head portion 12 through the air introduction port: the gas flows out through the air outlet 16b to the pressurizing space 21, and since the lack of u is in a closed state, the internal pressure rises by staying in the pressurized space. . As a result, the hose is expanded by the increase in the force in the pressurized space 21, and the notch 14 formed in the hose 17 is opened, whereby the fine air bubbles of the air are discharged into the used seawater. The generation of such fine bubbles is carried out in all the aeration nozzles 3 that receive air supply via the air supply pipes 132691.doc 200920700 11 and the head portion 12. Further, the aeration unit 2A constituted by the head portion 12 and the aeration nozzle 13 is provided with a width of 3 in the water path 1 of the flow path width W so as to cover the bottom surface la of one of the left and right width directions. The way to set it up. Then, in the water path of the flow path width W, the region where the unprovided portion width Wb of the aeration unit 2 is not provided is the nozzleless portion 3〇. In other words, in the aeration unit 20 in which the head portion 2 connected to the air supply pipe n is provided on the bottom surface 1a of the water passage 1 and the aeration nozzle 13 attached to the head portion 12 generates fine bubbles, the formation is not caused to be fine. The nozzleless portion 30 of the bottom surface region of the bubble. In this case, the nozzleless portion 3 is continuously provided along the side wall of either one of the left and right width directions of the water passage. According to such an aeration device, the aeration unit 2 () which generates fine bubbles from the aeration nozzle 13 attached to the head portion 12 has a nozzle-free portion 3A which forms a bottom surface region where no fine bubbles are generated, & In the region where the single S of the microbubbles is generated from the aeration nozzle 13 and the width 1 is set, an upward flow of the used seawater which rises in the same direction as the microbubbles is formed (arrow h in Fig. 1). On the other hand, due to the upward flow of the already used seawater, the bottom surface of the water passage u has been reduced by seawater, and in order to supplement the decrease 4, the region of the nozzleless portion 30 where no fine bubbles are generated forms a downward flow (arrow Fb of Fig. 1). ). The downflow in this case is formed in the nozzleless portion 3〇 formed along the side wall of the water path i. Therefore, in the waterway 1, the upward flow of the unit providing width of the aeration unit 2 is integrated with the downward flow which is the width of the unprovided portion of the nozzleless portion 3, and the seawater flowing through the waterway 1 is spread over Approximately the entire cross section of the water path forms a large swirling circulation flow. Thus, the sea that has flowed to the waterway has been used. 132691.doc 12 200920700 Water is formed in the width direction of the waterway 1 in the width direction of the flow path width w. This circulation flow promotes the mixing of the entire seawater used. In the second embodiment, as shown in FIG. 3, a partition member 40 extending in the flow direction of the water passage 1 is provided in the water passage width direction, and a region in which the width Wa is formed in the unit in which the fine bubbles are generated is divided and no fine bubbles are generated. The area of the portion width Wb is not set. The other configurations are the same as those of the first embodiment described above, and the detailed description of the same structures and members will be omitted below. The partition member 40 is divided into waterways, for example! The plate-shaped members in the left and right width directions are disposed in the height (depth) direction of the water passage 1, and allow the flow in the water passage width direction of the water surface side and the bottom surface side of the used seawater, and cut off the flow of the intermediate portion. As a result, the circulation flow formed in the water passage 1 is clearly divided into the upward flow and the downward flow by the partition member 40, and the formation of the large circulation flow of the flow path width W throughout the water passage i can be further promoted. Next, in the third embodiment shown in Figs. 4 and 5, instead of the aeration nozzle 13 disposed horizontally, the aeration nozzle 13A disposed vertically is used. The same portions as those of the above-described embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted. In this embodiment, since the aeration unit 20A of the aeration nozzle 13A is disposed vertically, the number of nozzles per unit area of the water passage can be increased. Therefore, when the various conditions such as the flow path width of the water passage 1 or the amount of air generating the fine bubbles are the same, the unit setting width Wa of the aeration unit 20A is set to be smaller than the horizontal arrangement (Wa, < Wa). Therefore, the unprovided portion width wb of the non-nozzle portion 3A can be set larger than the horizontal arrangement (Wb, > Wb). 132691, doc 200920700 Thus, by using the vertical configuration of the 々 1 1 (exposure nozzle 13A), the width Wa is formed and the L is formed, and the width Wb' of the unreset portion is taken: Therefore, the seawater that has flowed through the waterway can easily and surely form a large circulation of the circulation width W, which further promotes the mixing of the used seawater. Next, the i-th variant of the foregoing embodiments For example, as shown in Figure 6, the second change
t例如圖7所示進行說明…與前述實施形態相同部分 標圯相同符號，其詳細說明予以省略。 圖6所示之變形例之曝氣裝置i〇c中，不產生微細氣 =之^嘴部細沿水路i之流動方向間斷設置。即，單元 口又置見》度Wa、Wa1之暖韻置tv ί c\ ^ ^ 尸 Wa乙嵊亂早兀20、20A、與流路寬度W之 氣單元20B ’沿已用海水之流動方向交互配設。其結 果，不產生微細氣泡之無喷嘴部3〇B，沿水路丨之一側壁按 -定間隔間斷形成。因&，下降流亦間斷形成，故可增大 已用海水之流動所產生之混亂，促進混合。 圖7所示之第2變形例之曝氣裝置1〇D，將水路丨之流路寬 度W刀為一，並在各分割區内交互配設設置曝氣單元 20、20A之微細氣泡產生區域與不產生微細氣泡之無喷嘴 邓3 0B。其結果，水路丨之整體，無噴嘴部3〇B成千鳥格配 置。另，該情形下，流路寬度W之分割比例並不侷限於比 如2等分分割。 依照如此之千鳥格配置，因為已用海水所形成之循環流 之流向交互相逆’故增大流動之混亂，促進混合。 如此，無噴嘴部30、30A、30B之配置，既可沿水路1之 132691.doc 14 200920700 左右寬度方向之任意一方之側壁連續設置，或也可間斷配 置。另，無喷嘴部3〇、3〇A、3〇B之配置亦可沿左右側壁 交互間斷配置。 根據前述之本發明，藉由設置不產生微細氣泡之無噴嘴 部30、30A、3 0B，使流動於水路1之已用海水在水路工之 左右寬度方向上形成遍及流路寬度w之大循環流。該循環 流之形成，可促進已用海水整體之混合，故流入水路 已用海水即使在水路寬度方向之左右具有不同海水性狀， 亦不會混合不足。因此，通過本發明之曝氣裝置向鄰近海 域排入之已用海水，可以整體海水性狀大致均勻之狀態進 行排水，故設置無喷嘴部3〇、3〇A、3〇B可有效提高脫二 氧化碳性能。 另，若提高曝氣裝置之脫二氧化碳性能，則因為可縮短 實施一定脫二氧化碳所必需之水路丨之長度，故亦可減少 水路1之設置費用及設置空間。 另，本發明並不局限於前述實施形態，在不脫離本發明 之要旨之範圍内可進行適當變更。 【圖式簡單說明】 圖1係顯示本發明之曝氣裝置之第1實施形態之截面圖。 圖2A係圖1之平面圖所示之要部之部分截面圖。 圖2B係顯示曝氣噴嘴之内部構造之要部部分截面圖。 圖3係顯示本發明之曝氣裝置之第2實施形態之截面圖。 圖4係顯示本發明之曝氣裝置之第3實施形態之平面圖。 圖係,4示第3實施形態中之曝氣喷嘴之船直配置之立體 I32691.doc 200920700 圖。 圖6係顯示本發明之曝氣裝置之第1變形例之平面圖。 圖7係顯示本發明之曝氣裝置之第2變形例之平面圖。 圖8係顯示設於水路之曝氣裝置之簡略示意圖。 圖9係顯示先前之曝氣裝置之平面圖。 圖10係顯示圖9之曝氣裝置之立體圖。 圖11係顯示先前之曝氣裝置之截面圖。 【主要元件符號說明】 1 水路（SOTS) la 底面 2 微細氣泡 10A〜10D 曝氣裝置 11 空氣供給管 12 頭部 13, 13A 曝氣喷嘴（擴散喷嘴） 14 缺口 20, 20A, 20B 曝氣單元 30, 30A, 30B 無喷嘴部 40 分隔構件 132691.doc -16-For example, the same components as those of the above-described embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted. In the aeration device i〇c of the modification shown in Fig. 6, no fine gas is generated, and the mouth portion is intermittently arranged along the flow direction of the water path i. That is, the unit port is again seen "Wa, Wa1 warmth set tv ί c \ ^ ^ corpse Wa 嵊 兀 兀 兀 20, 20A, and the flow path width W of the gas unit 20B ' along the flow direction of the used seawater Interactive configuration. As a result, the nozzle-free portion 3〇B which does not generate fine bubbles is formed intermittently at intervals of one side wall of the water passage. Due to &, the downflow is also intermittently formed, so that the confusion caused by the flow of the used seawater can be increased and the mixing can be promoted. In the aeration device 1A of the second modification shown in Fig. 7, the flow path width W of the water passage is set to one, and the fine bubble generating regions of the aeration units 20 and 20A are alternately disposed in the respective divided regions. No nozzle No. 3 0B with no fine bubbles. As a result, the entire water path is not arranged in the nozzle section 3〇B in the houndstooth configuration. Further, in this case, the division ratio of the flow path width W is not limited to, for example, 2 division. According to such a houndstooth configuration, since the flow of the circulating flow formed by the seawater has been reversed, the flow confusion is increased and the mixing is promoted. As described above, the arrangement of the nozzleless portions 30, 30A, and 30B may be continuously provided along the side wall of any one of the width directions of the water channel 1 of 132691.doc 14 200920700, or may be intermittently arranged. Further, the arrangement of the nozzleless portions 3〇, 3〇A, 3〇B may be alternately arranged along the left and right side walls. According to the present invention described above, by providing the nozzleless portions 30, 30A, and 30B that do not generate fine bubbles, the seawater flowing through the water passage 1 is formed in a large circulation path width w in the left and right width directions of the waterway. flow. The formation of this circulating flow promotes the mixing of the used seawater as a whole, so that the inflowing seawater has different seawater properties even in the direction of the width of the waterway, and there is no shortage of mixing. Therefore, the used seawater discharged into the adjacent sea area by the aeration device of the present invention can be drained in a state in which the overall seawater property is substantially uniform, so that the nozzleless portions 3〇, 3〇A, 3〇B can be effectively improved to remove carbon dioxide. performance. Further, if the decarbonation performance of the aeration device is increased, the length of the water path required for performing a certain decarbonization can be shortened, so that the installation cost and installation space of the water path 1 can be reduced. The present invention is not limited to the embodiments described above, and may be appropriately modified without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a first embodiment of an aeration device according to the present invention. Fig. 2A is a partial cross-sectional view showing an essential part of the plan view of Fig. 1. Fig. 2B is a partial cross-sectional view showing an essential part of the internal structure of the aeration nozzle. Fig. 3 is a cross-sectional view showing a second embodiment of the aeration device of the present invention. Fig. 4 is a plan view showing a third embodiment of the aeration device of the present invention. Fig. 4 shows a three-dimensional arrangement of the aeration nozzle in the third embodiment. I32691.doc 200920700. Fig. 6 is a plan view showing a first modification of the aeration device of the present invention. Fig. 7 is a plan view showing a second modification of the aeration device of the present invention. Fig. 8 is a schematic view showing an aeration device provided in a waterway. Figure 9 is a plan view showing a prior aeration device. Figure 10 is a perspective view showing the aeration device of Figure 9. Figure 11 is a cross-sectional view showing a prior aeration device. [Main component symbol description] 1 Water path (SOTS) la Bottom 2 Micro bubbles 10A to 10D Aeration device 11 Air supply pipe 12 Head 13, 13A Aeration nozzle (diffusion nozzle) 14 Notch 20, 20A, 20B Aeration unit 30 , 30A, 30B No nozzle part 40 Separation member 132691.doc -16-