1378820 九、發明說明： 【發明所屬之技術領域】 本發明係闕於適用於燃燒煤炭、原油及重油等之發電機 組之排煙脫硫裝置’特別是用海水法脫硫之排煙脫硫裝 置。 【先前技術】 以前’以煤炭或原油作為燃料之發電機組_，自鍋爐所 排出之燃燒排氣（以下稱"鋼爐排氣"），需除去銷爐排氣中 所含之二氧化硫（S〇2)等硫氧化物（SQx)後才能排放到大氣 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等。 〃中採用海水法之排煙脫硫裝置（以下稱"海水脫硫裝 置"）係使用海水作為吸收劑之脫硫方法。該方法係藉由向 例如略圓筒狀之筒形縱置之脫硫塔(吸收塔)内部供入海水 及鍋爐排氣’以海水作為吸收液進行濕式基礎之氣液接 觸去硫氧化物。如此’從脫硫塔上部流下之海水與從 脫硫&下方上升之燃燒排氣進行氣液接觸而脫硫之海水脫 硫裝置之海水散佈方式已知有漏棚式' 充填式、喷淋式及 液柱式。 前述海水脫硫裝置中，通常之情形，於脫硫塔内作為吸 收劑使用後之使用過海水流入水路（海水氧化處理系統 (Seawater 〇xldati〇n Treatment ㈣：s〇ts)排放到附 近海域。另，對於流入水路之使用過海水要進行例如脫碳 酸（曝氣）等處理。 132461.doc ^78820 此處’作為海水脫硫裝置之先前例，係以如圖10所示之 漏棚式結構進行簡單說明。圖示之海水脫硫裝置1中，一 方面海水從脫硫塔2上部供給並自然落下，與從脫硫塔2下 邛供入並上升之鍋爐排氣之間產生氣液接觸。海水與鍋爐 排氣之氣液接觸，係以脫硫塔2内上下方向按一定間隔配 置之多段多孔板棚3作為濕式基礎，海水及鍋爐排氣通過 穿設於多孔板棚3上之多個孔4而達成。另，圖10所示之符 號5係海水供給管，5a係海水噴嘴，6係使脫硫後之海水流 出之使用過海水出口，7係鍋爐排氣供給口，8係使脫硫後 之鋼爐排氣流出之鍋爐排氣排氣口（例如，參照專利文獻 1、2) 此等海水脫硫裝置1中，脫硫塔2配置於水路（s〇TS)9之 上方，存在脫硫後之使用過海水從在脫硫塔2下端開口之 使用過海水出口 6直接落入水路9中而排水之情形。即構成 為水路9内流動之稀釋用海水與從脫硫塔2落下之使用過海 水混合，將使用過海水稀釋後排水。另，令使用過海水流 動之水路9，為防止流入來自脫硫塔2之鍋爐排氣，設有延 伸至進入水中之位置之前的氣體封阻用之阻隔墙丨〇。因 此，供入脫硫塔2之鍋爐排氣藉由阻隔墙丨〇及水面而封 阻，使其無法從水路9之水面上所形成空間向外漏出。 另，採用其他海水散佈方式（充填式等）之海水脫硫裝 置，從脫硫塔2上部流下之海水與從脫硫塔2下方上升之燃 燒排氡進行氣液接觸而脫硫之基本構成均相同。 [專利文獻1]特開平11-290643號公報 132461.doc ^78820 [專利文獻2]特開平2001-129352號公報 【發明内容】 但’前述海水脫硫裝置1中，由於使用過海水從脫硫塔2 落入在水路（SOTS)9中流動之稀釋用海水而進行混合豨 釋故使用過海水沖入稀釋用海水水面上時，有因水面激 蕩等而混入脫硫塔2内之鍋爐排氣之顧慮。如此混入使用 過海水之鋼爐排氣，成為氣泡隨稀釋用海水之流動而流 動’通過阻隔墙10流到外面。由此，一部分鍋爐排氣就隨 著稀釋用海水從脫硫塔2漏泄至周圍環境，故而不佳。 如此，對採用海水法之排煙脫硫裝置（海水脫硫裝置）， 希望能解決使用過海水沖入稀釋用海水水面時混入之鍋爐 排氣隨稀釋用海水之流動而漏泄至脫硫塔外之問題。 本發明係鑒於前述情形而成者，其目的在於對採用海水 法之排煙脫硫裝置，防止或抑制使用過海水沖入稀釋用海 水之水面時發生之此入燃燒排氣（銷爐排放煙氣），從而防 止或最小限度抑制燃燒排氣之漏泄。 本發明為解決前述課題，採用下述方法。 本發明之一態樣之排煙脫硫裝置，係採用從脫硫塔上部 流下之海水與從脫硫塔下方上升之燃燒排氣進行氣液接觸 而脫硫之海水法之排煙脫硫裝置，係於前述脫硫塔之燃燒 排氣流入位置之下方，設置使脫硫後之使用過海水從前述 脫硫塔落入在水路内流動之稀釋用海水進行混合稀釋且 緩和前述使用過海水落下沖入前述豨釋用海水時之衝擊力 之衝擊力緩和裝置。 132461.doc 1378820 位^據該等排煙脫硫裝置，藉由在脫硫塔之燃燒煙氣流入 之下方，3置使脫硫後之使用過海水從脫硫塔落入在 水^内流動之稀釋用海水進行混合稀釋，倾和使用過海 洛下冲人稀釋用海水時之衝擊力之衝擊力緩和裝置，藉 匕自脱硫^内落下之使用過海水在沖人稀釋用海水前，或 :釋用海水時，藉由通過衝擊力緩和裝置來降低對水 ^貫穿力β即，衝擊力緩和裝置將從脫硫塔内向稀釋用 絲之水面各下之使用過海水流（海水團）細分化 =用海水沖人方向之流速降低，來降低使用過海水向水 面沖入之貫穿力。 作為此情形之衝擊力緩沖裝置，有配設於稀釋用海水之 水上（燃燒排氣中）或水中（亦包含從水上延續至水中者）之 :格、多孔板、衍射柵格等格柵狀部件、附受衝板之漏 斗0 另，前述一態樣令，進行氣液接觸之海水散佈方式，可 以是漏棚式、充填式、喷淋式或液柱式中任意一種。 根據前述本發明，脫硫後之使用過海水從脫硫塔落入在 水路内之稀釋用海水進行混合稀釋時，藉由使從脫硫塔内 洛下之使用過海水通過衝擊力緩和褒置，而緩和使用過海 水落入稀釋用海水之貫穿力。因此，成為可防止或抑制脫 硫塔内燃燒排放混入使用過海水流中，混入稀釋用海水之 鋼爐排氣隨稀釋用海水之流動而流出而不會從脫硫塔漏泄 至周圍環境之脫硫排煙裝置。即’於採用海水法，對脫硫 後之使用過海水落入稀釋用海水進行處理之排煙脫硫裝 132461.doc 1378820 置，由於係藉由緩和使用過海水之貫穿力來降低於稀釋用 海水水面上產生激蕩，故防止或抑制使用過海水沖入稀釋 用海水水面時混入燃燒排氣，防止或最小限度抑制燃燒排 氣洩漏至脫琉塔外部之效果十分顯著。 【實施方式】 以下，對本發明之排煙脫硫裝置之一實施形態基於圖式 進行說明。 圖1所示之海水脫硫裝置丨八之脫硫塔2，係將使用例如煤 炭或原油等作為燃料之發電機組之鍋爐所排放之燃燒排氣 (以下稱"鍋爐排氣"）中含有之二氧化硫（S〇2)等硫氧化物 (sox) ’在排放到大氣前採用海水法除去之裝置。使用該 稱作海水法之脫硫方式之海水脫硫裝置1A，係使用海水作 為吸收劑。 圊示之海水脫硫裝置1A，藉由向以略圓筒狀之筒形縱置 之脫硫塔2内部供入海水及鍋爐排氣，將海水作為吸收液 進行濕式基礎之氣液接觸，除去硫氧化物。向脫硫塔2供 入之海水，從脫硫塔2上部喷出後在其内部自然落下。與 之相反，向脫硫塔2供入之鍋爐排氣，從脫硫塔2下部向脫 硫塔内導入後上升。 脫硫塔2内部按一定間隔於上下方向配置有多段多孔棚 板3。該多孔棚板3係無堰及溢流部之多孔板，落下之海水 與上升之锅爐排氣藉由通過多個孔4，發生互相接觸之氣 液接觸。該海水散佈方法被稱為例如"漏棚式”等。 即，多孔棚板3具有使從海水供給管5導入之海水（吸收 132461.doc 1378820 劑）與從鍋爐排氣供給口 7導入之鍋爐排氣進行氣液接觸之 濕式基礎之功能，藉由進行該氣液接觸，海水可將鍋爐排 氣中之硫氧化物吸收、除去。 作為吸收劑功能之海水，通過海水供給管5導入至吸收 塔2之上部。該海水從吸收塔2内上部平面略均等配置之多 個海水喷嘴5a，向配置於下方之多孔棚板3流出。該海水 在通過多孔棚板3發生氣液接觸後，換言之，吸收鍋爐排 氣中之硫氧化物並去除成為脫硫後之使用過海水，從脫硫 塔2之底面部開口之使用過海水出口 6直接落向後述水路 (S〇TS)9中流動之稀釋用海水之水面進行混合稀釋。另， 氣液接觸後脫硫之鍋爐排氣，從脫硫塔2之上部開口之鍋 爐排氣排氣口 8排放至脫硫塔外。 刖述海水脫硫裝置1A，為稀釋脫硫塔2之内部作為吸收 劑使用後之使用過海水，將稀釋用海水設於流動水路9之 上部。即，跨於水路9之上設置之脫硫塔2 ,將下端部開口 之使用過海水出口 6位於水路9之正上方，從脫硫塔2落入 稀釋用海水面之使用過海水藉由稀釋用海水之混合稀釋成 為使用過稀釋海水。該使用過稀釋海水在海水脫硫裝置以 之叹置位置下流側之水路9内流動期間，實施例如脫碳酸 (曝氣）等處理。 另，使用過海水之流動水路9，為防止流入來自脫硫塔2 之銷爐排氣’設有延伸至進人稀㈣海水之位置前之排氣 封阻用之阻隔墙1〇。因此，供入脫硫塔2之鍋爐排氣藉由 使用過海水出口6下部之阻隔墙ι〇及水面而成為封阻狀 I32461.doc 1378820 態’故使其無法從水路9之水面上所形成”向外漏出 <第1實施形態> 乂下關於本發明之衝擊力緩和裝置（以下稱"緩和裝置"）， 基於圖1至圖6對第1實施形態進行說明。 前述脫疏塔2之内部，如圖i所示，於連通銷爐排氣供給 口 7之開口位置之下方，設有緩和使用過海水落下沖入稀 釋用海水水面時之衝擊力之緩和裝置2()。該緩和裝置職1378820 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a flue gas desulfurization device suitable for a generator set for burning coal, crude oil and heavy oil, in particular, a flue gas desulfurization device for desulfurization by seawater method . [Prior Art] In the past, 'generators using coal or crude oil as fuel _, the combustion exhaust gas discharged from the boiler (hereinafter referred to as "steel furnace exhaust"), need to remove the sulfur dioxide contained in the pin furnace exhaust ( S〇2) can be released into the atmosphere after sulfur oxides (SQx). The desulfurization method for the flue gas desulfurization apparatus for performing such desulfurization treatment is known as a limestone gypsum method, a semi-dry scrubbing method, and a seawater method. The seawater flue gas desulfurization device (hereinafter referred to as "seawater desulphurization device") is a desulfurization method using seawater as an absorbent. The method is carried out by supplying seawater and boiler exhaust to a desulfurization tower (absorption tower) which is longitudinally arranged in a cylindrical shape, for example, and using a seawater as an absorption liquid to carry out a wet-based gas-liquid contact desulfurization oxide. . The seawater distribution method of the seawater desulfurization device that desulfurizes the seawater flowing from the upper part of the desulfurization tower and the combustion exhaust gas rising from the desulfurization & lower is known to have a leak-type type of filling and spraying. Type and liquid column type. In the above-described seawater desulfurization apparatus, in the usual case, the seawater inflow water channel (Seawater ldxldati〇n Treatment (4): s〇ts) used as an absorbent in the desulfurization tower is discharged to the nearby sea area. In addition, for the use of seawater flowing into the waterway, treatment such as decarbonation (aeration) is performed. 132461.doc ^78820 Here, as a prior example of the seawater desulfurization apparatus, the shed structure shown in Fig. 10 is used. In the illustrated seawater desulfurization device 1, on the one hand, seawater is supplied from the upper portion of the desulfurization tower 2 and naturally falls, and gas-liquid contact is generated between the boiler exhaust gas supplied from the lower desulfurization tower 2 and raised. The seawater is in contact with the gas and liquid of the boiler exhaust gas, and the multi-stage porous plate shed 3 disposed at a certain interval in the upper and lower directions of the desulfurization tower 2 is used as a wet foundation, and the seawater and the boiler exhaust gas are passed through the perforated plate shed 3. In addition, the symbol 5 shown in Fig. 10 is a seawater supply pipe, 5a is a seawater nozzle, 6 is a seawater outlet through which desulfurized seawater flows out, and a 7-series boiler exhaust supply port, 8 After desulfurization The boiler exhaust gas exhaust port from which the furnace exhaust gas flows out (for example, refer to Patent Documents 1 and 2). In the seawater desulfurization device 1, the desulfurization tower 2 is disposed above the water passage (s〇TS) 9, and after desulfurization The used seawater is discharged from the used seawater outlet 6 opened at the lower end of the desulfurization tower 2 directly into the waterway 9 to be drained. That is, the dilution seawater flowing in the waterway 9 and the used water falling from the desulfurization tower 2 are used. The seawater is mixed and diluted with seawater and drained. In addition, the waterway 9 through which the seawater flows is used to prevent the flow of the boiler from the desulfurization tower 2, and the gas is blocked until it enters the water. Therefore, the boiler exhaust gas supplied to the desulfurization tower 2 is blocked by the barrier wall and the water surface, so that it cannot leak out from the space formed on the water surface of the waterway 9. In addition, other seawater is used. The seawater desulfurization device of the dispersion method (filling type, etc.) has the same basic composition of desulfurization by the gas-liquid contact between the seawater flowing down from the upper portion of the desulfurization tower 2 and the combustion exhaust gas rising from below the desulfurization tower 2. 1]Special Kaiping 11-290643 [Patent Document 2] Japanese Laid-Open Patent Publication No. 2001-129352. However, in the seawater desulfurization apparatus 1, the seawater flows from the desulfurization tower 2 into the waterway (SOTS) 9 by using seawater. The dilution is carried out by mixing with seawater, so that when the seawater is flushed into the surface of the seawater for dilution, there is a concern that the boiler is exhausted into the desulfurization tower 2 due to water surface agitation, etc. The gas flows into the bubble along with the flow of the seawater for dilution, and flows out through the barrier wall 10. Therefore, a part of the boiler exhaust gas leaks from the desulfurization tower 2 to the surrounding environment with the seawater for dilution, which is not preferable. For the use of the seawater flue gas desulfurization device (seawater desulfurization device), it is hoped that the problem of leakage of the boiler exhaust gas mixed with the dilute seawater into the desulfurization tower when the seawater is flushed into the seawater surface for dilution is solved. . The present invention has been made in view of the foregoing circumstances, and the object thereof is to prevent or suppress the use of the flue gas discharged from the water surface of the dilute seawater by using the seawater flue gas desulfurization device. Gas) to prevent or minimize leakage of combustion exhaust. In order to solve the above problems, the present invention employs the following method. The flue gas desulfurization device of one aspect of the present invention is a flue gas desulfurization device using seawater method for desulfurization by seawater flowing from the upper part of the desulfurization tower and the combustion exhaust gas rising from below the desulfurization tower for gas-liquid contact Is disposed below the combustion exhaust gas inflow position of the desulfurization tower, and is configured to mix and dilute the seawater for dilution after the desulfurization from the desulfurization tower into the water passage, and to relax the use of the seawater. An impact mitigation device that rushes into the impact force of the aforementioned seawater for release. 132461.doc 1378820 According to the flue gas desulfurization device, by using the flue gas flow in the desulfurization tower, 3 is used to make the used seawater after desulfurization fall from the desulfurization tower into the water. The dilution is diluted and mixed with seawater, and the impact mitigation device for impacting the seawater used in the dilution of seawater under the use of Hailuo is used, and the used seawater that has fallen from the desulfurization is used before the seawater for diluting the dilution, or : When seawater is released, the water penetration force β is reduced by the impact mitigation device, that is, the impact mitigation device is subdivided from the inside of the desulfurization tower to the water surface of the dilution wire (seawater group). = The flow rate in the direction of sea water is reduced to reduce the penetration force of the seawater used to rush into the water surface. As the impact buffering device in this case, there are grids such as grids, perforated plates, and diffraction gratings, which are disposed on the water for dilution seawater (in the combustion exhaust gas) or in the water (including those that continue from the water to the water). The component and the funnel with the punching plate 0. In addition to the above-mentioned one, the seawater scattering method for performing gas-liquid contact may be any one of a shed type, a filling type, a spray type or a liquid column type. According to the present invention, when the seawater used for desulfurization is mixed and diluted from the desulfurization tower into the seawater for dilution in the waterway, the seawater used from the desulfurization tower is cooled by the impact force. And to ease the penetration force of seawater falling into the seawater for dilution. Therefore, it is possible to prevent or suppress the combustion and discharge in the desulfurization tower from being mixed into the used seawater flow, and the steel furnace exhaust gas mixed with the seawater for dilution flows out with the flow of the seawater for dilution without leaking from the desulfurization tower to the surrounding environment. Sulfur exhaust device. That is, in the method of using the seawater method, the flue gas desulfurization device 132461.doc 1378820, which has been treated with seawater falling into the dilute seawater after desulfurization, is reduced in dilution by mitigating the penetration force of seawater used. The sea water surface is turbulent, so that it is possible to prevent or suppress the use of the seawater to flush into the water surface for dilution, and to prevent or minimize the leakage of the combustion exhaust gas to the outside of the detachment tower. [Embodiment] Hereinafter, an embodiment of the flue gas desulfurization apparatus of the present invention will be described based on the drawings. The desulfurization tower 2 of the seawater desulfurization apparatus shown in Fig. 1 is a combustion exhaust gas (hereinafter referred to as "boiler exhaust") discharged from a boiler of a generator set using, for example, coal or crude oil. A device containing sulfur dioxide (sox) such as sulfur dioxide (S〇2) removed by seawater before being discharged to the atmosphere. The seawater desulfurization apparatus 1A using the desulfurization method called the seawater method uses seawater as an absorbent. The seawater desulfurization apparatus 1A shown in the present invention supplies seawater and boiler exhaust gas to the inside of the desulfurization tower 2 which is vertically arranged in a cylindrical shape, and uses seawater as an absorbent liquid to perform wet-based gas-liquid contact. Sulfur oxides are removed. The seawater supplied to the desulfurization tower 2 is ejected from the upper portion of the desulfurization tower 2 and then naturally falls inside. On the contrary, the boiler exhaust gas supplied to the desulfurization tower 2 is introduced from the lower portion of the desulfurization tower 2 into the desulfurization tower and then rises. A plurality of perforated slabs 3 are disposed inside the desulfurization tower 2 at regular intervals in the vertical direction. The perforated panel 3 is a perforated plate having no flaws and overflow portions, and the falling seawater and the rising boiler exhaust are brought into contact with each other by a plurality of holes 4 to be in contact with each other. The seawater scattering method is referred to as, for example, a "leaked shed", etc. That is, the perforated slab 3 has seawater (absorbed 132461.doc 1378820) introduced from the seawater supply pipe 5 and introduced from the boiler exhaust supply port 7. The boiler exhaust gas performs the function of the wet foundation of the gas-liquid contact, and the seawater can absorb and remove the sulfur oxides in the boiler exhaust gas by the gas-liquid contact. The seawater as the absorbent function is introduced through the seawater supply pipe 5. The seawater flows from the plurality of seawater nozzles 5a arranged slightly in the upper plane of the absorption tower 2 to the porous perforated panel 3 disposed below. The seawater is subjected to gas-liquid contact after passing through the perforated panel 3 In other words, the sulfur oxide in the exhaust gas of the boiler is absorbed and the used seawater after desulfurization is removed, and the used seawater outlet 6 opened from the bottom surface of the desulfurization tower 2 directly falls to the water channel (S〇TS) 9 described later. The dilution of the flow is mixed and diluted with the surface of the seawater. In addition, the desulfurized boiler exhaust gas after the gas-liquid contact is discharged from the boiler exhaust gas exhaust port 8 opened at the upper part of the desulfurization tower 2 to the outside of the desulfurization tower. Desulfurization In the case of 1A, the seawater used for diluting the inside of the desulfurization tower 2 as an absorbent is used, and the seawater for dilution is placed on the upper portion of the flowing water channel 9. That is, the desulfurization tower 2 disposed above the waterway 9 is provided at the lower end. The used seawater outlet 6 is located directly above the waterway 9, and the used seawater which has fallen from the desulfurization tower 2 into the dilution seawater surface is diluted with the dilution seawater to be used to use the diluted seawater. The seawater desulfurization apparatus performs a process such as decarbonation (aeration) while flowing in the waterway 9 on the downstream side of the sigh position. In addition, the flow water path 9 of the seawater is used to prevent the flow into the pin furnace from the desulfurization tower 2 The exhaust gas is provided with a barrier wall for the exhaust gas blockage extending to the position of the dilute (four) seawater. Therefore, the boiler exhaust gas supplied to the desulfurization tower 2 is blocked by the lower portion of the seawater outlet 6 〇 〇 水 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Hereinafter referred to as "moderate &Quot;), based on FIGS. 1 to 6 pairs of the first embodiment will be described. As shown in FIG. 1, the inside of the desalination tower 2 is provided below the opening position of the communication pin furnace supply supply port 7, and is provided with a mitigation device 2 for mitigating the impact force when the seawater falling into the dilution seawater surface is used. (). The mitigation device
於銷爐排氣之流入位置下方，且於流動於水路9内之稀釋 用海水之上方位置’固定支持於脫硫塔2上。#，緩和裝 置20係以涵蓋形成使用過海水出口6之全部區域之方式設 置。 。 緩和裝置20藉由接觸或通過流向稀釋用海水水面之使用 過海水，將使用過海水流或流團細分化，或降低向稀釋用 海水水面沖人方向之流速’纟降低使用過海水向水面沖入 之貫穿力。It is fixed below the inflow position of the pin furnace exhaust gas and is fixedly supported by the desulfurization tower 2 at a position above the dilution seawater flowing in the water path 9. #, The mitigation device 20 is provided to cover the entire area in which the seawater outlet 6 has been used. . The mitigation device 20 reduces the flow rate of the used seawater flow or the flow group by contacting or passing through the seawater used for the dilution seawater surface, or reducing the flow rate toward the water surface of the dilution seawater. Into the penetration.
圖1所示之緩和裝置20,係形成為可通過例如使用過海 水之格柵狀部件。該情形之格柵狀部件，例如如圖4或圖5 所不，既可採用平板狀之柵格21，亦可採用如圖4所示之i 層柵格21 ’或如圖5所示’採用按上下方向多層柵格。重 疊之積層構造。另，採用積層構造之情形，積層柵格。之 開口 21a最好錯位重疊。 另，作為格柵狀部件之變形例，例如如圖6所示，可採 用在圓板上穿設多個孔22a之多孔板22。採用該等多孔板 22之情形，也可採用i片或多片積層構造。另，採用積層 132461.doc •12- 1378820 構造之情形，積；I之多孔板22之孔22a最好錯位重疊。 /設置該等緩和裝置2G後，脫硫塔2内落下之使用過海水 係通過柵格21或多孔板22類之格柵狀部件。此時，使用過 海水通過栅格21之開口 21a或多孔板22之孔仏，水流（流 ; 團)被細分化之同時，開口仏或孔22&使落下流路狹窄繼 而產生机路阻力造成壓力損失。由此，從脫硫塔2内落向 #釋用海水水面之使用過海水，在沖人稀釋用海水之前， φ 因水流之細分化及流速降低等使得落向水面之貫穿力降 低。因此，在使用過海水出口 6之下方，還可緩和稀釋用 海水之水面產生激蕩，故可防止或抑制脫硫塔2内之燃燒 排氣混入稀釋用海水。 & 另，構成緩和裝置20之格柵狀部件，除可採用柵格以或 多孔板22以外，還可採用例如衍射柵格（未圖示）等。 如圖2所不之第1變形例之海水脫硫裝置1B，與前述緩和 裝置20實質結構相同之緩和裝置2〇A係設置於在水路9内流 • 動之稀釋用海水之水中。此情形之緩和裝置20A，係由延 伸至稀釋用海水水中之阻隔墙1〇固定支持，以涵蓋阻隔墙 1〇所圍成之全部區域之方式設置。另’圖示之緩和裝置 20A，不僅於上下方向有厚度，且設置至與阻隔墻之下 — 端部略相同之水中深度，但並不對此限定。即，例如作為 緩和裝置20A設置一片柵格21之情形等，既可設置為與水 面略一致，也可設置於適當水深之水中，可進行適當變 更。 如此結構之緩和裝置20A，也可在使用過海水沖入稀釋 132461.doc •13- 1378820 用海水後’將從脫硫塔2向稀釋用海水水面落了之使用過 海水流（海水團）細分化，或降低沖入稀釋用海水方向之流 速，令使用過海水沖入水面之貫穿力降低。即，緩和裝置 20A藉由使使用過海水流細分化或降低其流速使其沖入水 面之貫穿力降低’故於使用過海水出口 6之下方，可緩和 阻隔墙10所圍成區域之稀釋用海水水面產生激蕩。由此， 具備緩和裝置20A之海水脫硫裝置汨，可防止或抑制脫硫 塔2内之鍋爐排氣混入稀釋用海水。 圖3所示之第2變形例之海水脫硫裝置⑴，係與前述緩和 裝置20A實質結構相同之緩和裝置2〇B，設置於水中並略 等高於在水路9内流動之稀釋用海水之水深。該情形之緩 和裝置2嶋以由延伸至稀釋用海水水中之阻隔墙ι〇固定 支持，並涵蓋阻隔墻1〇所圍成之全部區域之方式設置。 如此結構之緩和裝置20B，可在使用過海水沖入稀釋用 海水後，藉由令使用過海水流細分化或降低其流速使其沖 入水面之貫穿力降低，故於使用過海水出口6之下方，可 緩和阻隔墙10所圍成區域之稀釋用海水水面產生激蕩。由 此，具備緩和裝置20B之海水脫硫裝置⑴，可防止$抑制 脫硫塔2内之鍋爐排氣混入稀釋用海水。 1 另，前述緩和裝置20、20A、20B雖係設置於水路9中流 動之稀釋用海水之水上或水中，但未圖示之變形例中，可 設置有於水上及水中兩者連續之緩和裝置，或，水上及 中分設之緩和裝置。 7 此外，對於涵蓋緩和裝置20、20A、20B之區域，從有 13246】-doc 14 1378820 效抑制水面激蕩觀點來看，若為水上則最好涵蓋脫硫塔2 之使用過海水出口 6之全部，或若於水中則最好涵蓋阻隔 墙1 〇所圍成之全部區域，但並無特別限定。 <第2實施形態> 下面，關於本發明之緩和裝置’以第2實施形態進行說 明。另，對海水脫硫裝置之結構及緩和裝置，與前述實施 — 形態相同之構成部分使用相同符號，並省略⑴田說明。 • 圖7所示之海水脫硫裝置1D，具備如圖8所示之附受衝板 之漏斗之緩和裝置30。附受衝板之漏斗之緩和裝置3〇具備 漏斗部31與受衝板32。 漏斗部31係脫硫塔2之使用過海水出口 6下方之底部呈漏 斗狀之部分。#，該情形之漏斗部31 ’係形成為縮小作為 使用過海水出π 6下方之底部，具備從脫硫塔2之側壁下端 部向中心部向下傾斜之傾斜面之底面以，在傾斜面之底面 2a最低處之脫硫塔2之軸中心側開口之出口流路η。另， • 底面“之傾斜面，從抑制流下之流速之觀點來看，傾斜度 較好盡量緩和。 又 漏斗部3丨之出口流路33，係連續至稀釋用海水水中之圓 - 冑狀流路。出口流路33之上方，與轴中心位置略—致地設 . 冑大於出口流路33之入口開口面積之圓板狀受衝板32。該 受衝板32與底面2a之間可形成成為使用過海水之流路之縫 隙，且，固定支持於比導入锅爐排氣之鋼爐排氣供給口 7 低之位置，例如藉由於底面2a上之多根支撐部件（未圖示） 132461.doc i s] -15- 1378820 藉由設置前述緩和裝置3Q，脫硫塔2内落下之使用過海 於中^也、又衝板32衝擊，於周邊部與底面2a衝擊。 由此’中心部落T之使用過海水，因受衝板32使落下速 度降低並改變流向，被受衝板32之上面引導流向周邊部方 肖肖此從又衝板32之端部向底面2a落下。此時之落下速 度與落至受衝板32之落下速度相比大幅降低。 — 另—方面’周邊部落下之使用過海水，因底S2a之傾斜 • 錢落下速度略降低並改變流向，與從受衝板32上落下之 使用過海水匯合流向出口流路33。該情形之流速，因使用 .過海水在出口流路33之入口部周圍略均等分散，且，沿較 平緩之傾斜面流動，故流速較小。 如此從出口流路33流出之使用過海水，其大部分沿出 口流路33之壁面流下，故可緩和使用過海水沖人稀釋用海The mitigation device 20 shown in Fig. 1 is formed by, for example, a grid-like member that uses sea water. The grid-like member in this case, for example, as shown in FIG. 4 or FIG. 5, may be a grid-like grid 21, or an i-layer grid 21' as shown in FIG. 4 or as shown in FIG. Use a multi-layer grid in the up and down direction. Overlapping laminate construction. In addition, in the case of a laminated structure, a grid is laminated. The openings 21a are preferably overlapped in position. Further, as a modification of the lattice member, for example, as shown in Fig. 6, a perforated plate 22 having a plurality of holes 22a formed in a circular plate may be employed. In the case of using the perforated plates 22, an i-piece or a multi-layer laminate structure may also be employed. Further, in the case of the construction of the laminated layer 132461.doc • 12-1378820, the holes 22a of the porous plate 22 of the product I are preferably misaligned. / After the mitigation means 2G is provided, the used seawater which has fallen in the desulfurization tower 2 passes through the grid member of the grid 21 or the perforated plate 22. At this time, the seawater is passed through the opening 21a of the grid 21 or the hole of the perforated plate 22, and the water flow (flow; the mass) is subdivided, and the opening or the hole 22& narrows the falling flow path to cause the path resistance. Pressure loss. As a result, the seawater used for the release of the seawater surface from the inside of the desulfurization tower 2 is immersed in the seawater for dilution, and the penetration force of the water surface is lowered due to the subdivision of the water flow and the decrease in the flow velocity. Therefore, under the use of the seawater outlet 6, the water surface of the seawater for dilution can be alleviated, so that the combustion exhaust gas in the desulfurization tower 2 can be prevented or prevented from being mixed into the seawater for dilution. Further, in addition to the grid or the perforated plate 22, a grid-like member constituting the tempering device 20 may be, for example, a diffraction grating (not shown) or the like. The seawater desulfurization apparatus 1B according to the first modification shown in Fig. 2 is provided in the water of the dilution seawater flowing in the water passage 9 in the same manner as the above-described mitigation device 20. The mitigating device 20A in this case is fixedly supported by a barrier wall extending to the seawater for dilution, and is disposed in such a manner as to cover the entire area surrounded by the barrier wall. Further, the illustrated mitigating device 20A has a thickness not only in the up-and-down direction but also in the depth of water which is slightly the same as the end portion of the barrier wall, but is not limited thereto. In other words, for example, when the grid 21 is provided as the mitigation device 20A, it may be provided to be slightly coincident with the water surface, or may be provided in water of a suitable water depth, and may be appropriately changed. The mitigating device 20A of such a structure can also be subdivided into the used seawater flow (seawater group) which has fallen from the desulfurization tower 2 to the dilution seawater surface after the seawater is flushed into the diluted 132461.doc •13-1378820 The flow rate in the direction of the seawater for dilution is reduced, and the penetration force of the seawater washed into the water surface is lowered. That is, the mitigating device 20A reduces the penetration force of the seawater flow by subdividing the flow rate of the seawater or reducing the flow velocity thereof, so that it is used below the seawater outlet 6, thereby alleviating the dilution of the region surrounded by the barrier wall 10. The sea water surface is stirring. Thereby, the seawater desulfurization apparatus 缓 of the mitigation device 20A is provided to prevent or suppress the boiler exhaust gas in the desulfurization tower 2 from being mixed into the seawater for dilution. The seawater desulfurization device (1) according to the second modification shown in Fig. 3 is a mitigation device 2A having substantially the same structure as the mitigation device 20A, and is disposed in the water and slightly higher than the dilution seawater flowing in the waterway 9. Water depth. The mitigation device 2 in this case is fixedly supported by a barrier wall extending to the seawater for dilution, and covers all the areas enclosed by the barrier wall. The mitigating device 20B having such a configuration can be used after the seawater having been used for flushing into the seawater for dilution, and the penetration force for flushing into the water surface is reduced by subdividing the seawater flow or reducing the flow velocity thereof, so that the seawater outlet 6 is used. Below, the dilution seawater surface which is surrounded by the barrier wall 10 can be irritated. As a result, the seawater desulfurization device (1) including the mitigation device 20B can prevent the boiler exhaust gas in the desulfurization tower 2 from being mixed into the seawater for dilution. In addition, the above-described mitigation devices 20, 20A, and 20B are provided on the water or water of the seawater for dilution flowing in the waterway 9, but in a modification not shown, a mitigation device in which both water and water are continuously provided may be provided. , or, a mitigation device for water and medium. 7 In addition, for the area covering the mitigation devices 20, 20A, 20B, from the viewpoint of 13246]-doc 14 1378820 effect suppression of water surface surge, if it is water, it is better to cover all the used seawater outlets 6 of the desulfurization tower 2 Or, if it is in water, it is best to cover all areas enclosed by the barrier wall 1 , but there is no particular limitation. <Second Embodiment> Hereinafter, the mitigation device of the present invention will be described in the second embodiment. In the structure and the mitigation device of the seawater desulfurization device, the same components as those of the above-described embodiment are denoted by the same reference numerals, and the description of (1) is omitted. The seawater desulfurization apparatus 1D shown in Fig. 7 is provided with a mitigation device 30 for attaching a punching plate as shown in Fig. 8. The funnel mitigation device 3A with the punching plate is provided with a funnel portion 31 and a receiving plate 32. The funnel portion 31 is a portion of the desulfurization tower 2 which is used in the bottom of the seawater outlet 6 and has a trapezoidal shape. #, In this case, the funnel portion 31' is formed to be reduced as a bottom portion below the π 6 used for the seawater, and has a bottom surface of the inclined surface which is inclined downward from the lower end portion of the side wall of the desulfurization tower 2 toward the center portion, on the inclined surface The outlet flow path η at the center side of the shaft of the desulfurization tower 2 at the lowest point of the bottom surface 2a. In addition, the slope of the bottom surface is preferably as gentle as possible from the viewpoint of suppressing the flow velocity under the flow. The outlet flow path 33 of the funnel portion is continuous to the circle of the seawater for dilution - the turbulent flow Above the outlet flow path 33, a circular plate-shaped receiving plate 32 having a larger opening area than the inlet opening of the outlet flow path 33 is formed slightly from the center of the shaft. The receiving plate 32 and the bottom surface 2a can be formed. It becomes a gap of a flow path using seawater, and is fixedly supported at a position lower than a steel furnace exhaust supply port 7 into which the boiler exhaust gas is introduced, for example, by a plurality of support members (not shown) on the bottom surface 2a 132461 .doc is] -15- 1378820 By providing the above-mentioned mitigating device 3Q, the use of the falling inside the desulfurization tower 2 is applied to the center and the plate 32 is impacted, and the peripheral portion and the bottom surface 2a are impacted. When the water is used, the falling plate speed is lowered and the flow direction is changed by the punching plate 32, and the upper surface of the receiving plate 32 is guided to the peripheral portion, and the bottom portion of the punching plate 32 is lowered toward the bottom surface 2a. The falling speed is significantly lower than the falling speed of the falling plate 32 Low. - On the other hand, 'the seawater used by the surrounding tribes is tilted by the bottom S2a. ・ The speed of the falling of the money is slightly lowered and the flow direction is changed, and the combined use of the seawater falling from the receiving plate 32 flows to the outlet flow path 33. In the case of the flow rate, the seawater is slightly dispersed around the inlet portion of the outlet flow path 33, and flows along the relatively gentle inclined surface, so that the flow rate is small. Thus, the used seawater flowing out from the outlet flow path 33 is Most of them flow down the wall surface of the outlet flow path 33, so that the seawater used for diluting the sea can be alleviated.
Jc Jc面之貝穿力。因此’混人稀釋用海水進行稀釋之使用 過海水，在前端沖入稀釋用海水水中之出口流路^之内部 • 車交平穩地合流，故使匯入使用過海水之稀釋用海水水面所 產生之激蕩抑制到最小限度。從而，具備緩和裝置30之海 水脫硫裝置1D’可防止或抑制脫硫塔2内之鋼爐排氣混入 稀釋用海水。 如圖9所示之變形例之海水脫硫裝㈣係在出口流路33 之水中，具備使用過海水之出口 34a向稀釋用海水之上游 側-曲之水平流路部34之方面不同之緩和裝置3〇A。即， 係構成為使與稀釋用海水匯合之使用過海水，在水中與稀 釋用海水之流動逆向流出。 I32461.doc 1378820 =，稀釋用海水流，因與使用過海水之匯人而在水中 0人^等激蕩°從而’對於使用過海水與稀釋用海水之 二“稀釋，流過相對較短之水路9之流路之間，全體之混 可有效達成均-之良好嫩態。另，對於具備 緩和裝置3GA之海水脫硫裝請，就可防止或抑制脫硫塔 2内之鍋爐攝氣混入稀釋用海水這一點亦與前述例相同。Jc Jc face shelling. Therefore, the mixed seawater diluted with seawater is mixed with the seawater at the front end and flushed into the outlet flow path of the seawater for dilution. The car is smoothly merged, so that the water surface of the seawater used for dilution is used. The agitation is suppressed to a minimum. Therefore, the sea water desulfurization apparatus 1D' provided with the mitigation device 30 can prevent or suppress the steel furnace exhaust gas in the desulfurization tower 2 from being mixed into the seawater for dilution. The seawater desulfurization device (4) according to the modification shown in Fig. 9 is provided in the water in the outlet flow path 33, and is provided with a mitigation of the use of the seawater outlet 34a to the upstream side of the dilution seawater-the horizontal flow path portion 34. Device 3〇A. In other words, the used seawater that is combined with the seawater for dilution is configured to flow backward in the water and the flow of the seawater for dilution. I32461.doc 1378820 =, dilute seawater flow, due to the use of seawater sinkers in the water 0 people ^ etc. so that 'for the use of seawater and dilute seawater two dilution, flow through a relatively short waterway Between the flow paths of the 9th, the mixing of the whole can effectively achieve the good and the tender state. In addition, for the seawater desulfurization installation with the mitigation device 3GA, it can prevent or inhibit the boiler gas in the desulfurization tower 2 from mixing into the dilution. The use of seawater is also the same as in the previous examples.
*如此’ _料本發明，_狀使肖料讀脫硫塔 2洛向水路州之轉㈣水進行混合稀料，就由使從脫 硫塔2内落下之使用過海水通過緩和裝置20等，得以緩和 使用過海水落下沖入稀釋用海水之貫穿力。因此，可成為 可防止或㈣脫硫塔2内之燃燒排氣混人使用過海水流， 使混 士 入稀釋用海水之銷爐排氣隨稀釋用海水之流動順著水 路9流出，而不會從脫硫塔2漏泄至周圍環境之排煙脫硫裝 置。即，於採用海水法使脫硫後之使用過海水落八稀釋用 海水進行處理之排煙脫硫裝置，係藉由緩和使用過海水之 貫穿力來降低於稀釋用海水水面產生激蕩，故可防止或抑 制使用過海水沖入稀釋用海水水面時混入燃燒排氣，防止 鋼爐排氣漏泄至脫硫塔2外部。 另’前述海水脫硫裝置之各實施形態及變形例中，雖然 從脫硫塔2上部流下之海水與從脫硫塔2下方上升之燃燒排 放煙氣進行氣液接觸脫硫之海水脫硫裝置之海水散佈方式 係採用漏棚式，但本發明並不對此限定，亦可適用於採用 例如充填式、噴淋式及液柱式之裝置。 另’前述第1及第2實施形態之緩和裝置，除前述單獨採 132461.doc 17 1378820 用外’還可適當組合兩實施形態進行構造。 另’前述之第2實施形態中，出口流路33具有伸入水中 之長度’但因沖入稀釋用海水之使用過海水之落下速度比 以往大幅降低，故出口流路33之長度可縮短至水面上適當 處，或完全不設置出口流路33之構成。另，縮短出口流路 33或完全不設置之情形，可組合格栅狀緩和裝置2〇。 另’本發明並不局限於前述實施形態，在不脫離本發明 之要旨範圍内可進行適當變更。 【圖式簡單說明】 圖1係本發明之海水脫硫裝置之第1實施形態之斷面圖。 圖2係圖1之第1變形例之海水脫硫裝置之斷面圖。 圖3係圖1之第2變形例之海水脫硫裝置之斷面圖。 圖4係作為緩和裝置之格柵狀部件之1層栅格之立體圖。 圖5係作為緩和裝置之格柵狀部件之積層構造之栅格之 立體圖。 圖6係作為緩和裝置之格柵狀部件之變形例之多孔板之 立體圖。 圖7係本發明之海水脫硫裝置之第2實施形態之斷面圖。 圖8係圖7所示之附受衝板之漏斗之緩和裝置之主要局部 之立體圖。 圖9係圖7之變形例之海水脫硫裝置之斷面圖。 圖丨〇係海水脫硫裝置之先前構造之斷面圖。 【主要元件符號說明】 1A、IB、iC、1D、1E 海水脫硫裝置 132461.doc •18· 1378820 2 6 7 9 10 20、20A、20B、30、30A 3 1 32 33 34 脫硫塔 使用過海水出口 鍋爐排氣供給口 水路（SOTS) 阻隔墻 衝擊力緩和裝置（緩和裝置） 漏斗部 受衝板 出口流路 水平流路部*Therefore, the present invention is such that the smear-reading desulfurization tower 2 is transferred to the waterway state (4) water to mix the thinner, and the used seawater falling from the desulfurization tower 2 is passed through the mitigation device 20, etc. It is possible to alleviate the penetration force of the seawater that has been washed down into the dilution seawater. Therefore, it is possible to prevent or prevent the use of the seawater flow in the combustion exhaust gas in the desulfurization tower 2, and to discharge the exhaust gas of the mixed seawater into the seawater for dilution with the flow of the seawater for dilution along the waterway 9, without It will leak from the desulfurization tower 2 to the flue gas desulfurization device in the surrounding environment. In other words, the flue gas desulfurization device that uses the seawater method to treat the desulfurized seawater that has been diluted with seawater is used to reduce the penetration force of the seawater used for dilution, thereby reducing the water surface of the seawater for dilution. Preventing or suppressing the use of seawater to flush into the surface of the seawater for dilution, and mixing the combustion exhaust gas to prevent the steel furnace exhaust gas from leaking to the outside of the desulfurization tower 2. In the respective embodiments and modifications of the seawater desulfurization apparatus, the seawater desulfurization device that performs gas-liquid contact desulfurization by the seawater flowing down from the upper portion of the desulfurization tower 2 and the combustion exhaust gas rising from below the desulfurization tower 2 The seawater scattering method adopts a leak-proof type, but the present invention is not limited thereto, and can also be applied to a device using, for example, a filling type, a spray type, and a liquid column type. Further, the mitigating devices of the first and second embodiments may be combined with the two embodiments in addition to the above-mentioned separate use of 132461.doc 17 1378820. In the second embodiment, the outlet flow path 33 has a length that extends into the water. However, since the falling speed of the seawater used for flushing the seawater for dilution is significantly lower than the conventional one, the length of the outlet flow path 33 can be shortened to The configuration on the water surface is appropriate or the outlet flow path 33 is not provided at all. Further, in the case where the outlet flow path 33 is shortened or not provided at all, the grid-like easing device 2 can be combined. The present invention is not limited to the embodiments described above, and may be appropriately modified without departing from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a first embodiment of a seawater desulfurization apparatus according to the present invention. Fig. 2 is a cross-sectional view showing a seawater desulfurization apparatus according to a first modification of Fig. 1. Fig. 3 is a cross-sectional view showing a seawater desulfurization apparatus according to a second modification of Fig. 1. Figure 4 is a perspective view of a one-layer grid as a grid-like member of the mitigation device. Fig. 5 is a perspective view of a grid of a laminated structure as a grid-like member of a mitigation device. Fig. 6 is a perspective view of a perforated plate as a modification of the lattice member of the mitigation device. Figure 7 is a cross-sectional view showing a second embodiment of the seawater desulfurization apparatus of the present invention. Fig. 8 is a perspective view showing a main part of the damper of the funnel with a punching plate shown in Fig. 7. Figure 9 is a cross-sectional view showing a seawater desulfurization apparatus according to a modification of Figure 7. A cross-sectional view of the prior construction of the seawater desulfurization unit. [Explanation of main components] 1A, IB, iC, 1D, 1E seawater desulfurization unit 132461.doc •18· 1378820 2 6 7 9 10 20, 20A, 20B, 30, 30A 3 1 32 33 34 Desulfurization tower used Seawater outlet boiler exhaust supply port waterway (SOTS) barrier wall impact mitigation device (mitigation device) funnel section by punching plate outlet flow path horizontal flow path
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