TWI389734B - Flue gas desulfurization device - Google Patents
Flue gas desulfurization device Download PDFInfo
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- TWI389734B TWI389734B TW097105924A TW97105924A TWI389734B TW I389734 B TWI389734 B TW I389734B TW 097105924 A TW097105924 A TW 097105924A TW 97105924 A TW97105924 A TW 97105924A TW I389734 B TWI389734 B TW I389734B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431971—Mounted on the wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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Description
本發明關於適用於煤炭焚燒、原油焚燒及重油焚燒等的發電廠之排煙脫硫裝置，特別關於使用海水法進行脫硫之排煙脫硫裝置。The present invention relates to a flue gas desulfurization device for a power plant for coal incineration, crude oil incineration, and heavy oil incineration, and more particularly to a flue gas desulfurization device for desulfurization using a seawater method.
以往，在以煤炭或原油等為燃料之發電廠，由鍋爐所排出的燃燒排廢氣(以下稱為鍋爐排廢氣)，在除去含於鍋爐排廢氣中之二氧化硫(SO2 )等的硫氧化物(SOx )後再釋放至大氣中。作為實施這樣的脫硫處理的排煙脫硫裝置之脫硫方式，石灰石石膏法、噴霧乾燥法及海水法為眾所皆知。In the power plant that uses coal or crude oil as fuel, the combustion exhaust gas (hereinafter referred to as boiler exhaust gas) discharged from the boiler removes sulfur oxides such as sulfur dioxide (SO 2 ) contained in the exhaust gas of the boiler. (SO x ) is then released into the atmosphere. As a desulfurization method for a flue gas desulfurization apparatus that performs such desulfurization treatment, a limestone gypsum method, a spray drying method, and a seawater method are well known.
在這些方法中，採用海水法的排煙脫硫裝置(以下稱為海水脫硫裝置)是使用海水作為吸收劑之脫硫方式。在此方式，藉由對將例如大致呈圓筒的圓筒狀做成縱向配置之脫硫塔(吸收塔)的內部，供給海水及鍋爐排廢氣，藉此以海水作為吸收液，產生濕式基座的氣液接觸，除去硫氧化物。Among these methods, a flue gas desulfurization apparatus (hereinafter referred to as a seawater desulfurization apparatus) using a seawater method is a desulfurization method using seawater as an absorbent. In this way, seawater and boiler exhaust gas are supplied to the inside of a desulfurization tower (absorption tower) which is disposed in a longitudinal direction, for example, a substantially cylindrical shape, whereby seawater is used as an absorption liquid to generate a wet type. The gas-liquid contact of the susceptor removes sulfur oxides.
在上述的海水脫硫裝置，通常的情況，在脫硫塔內作為吸收劑所使用過後的使用過海水流經水路(Sea Water Treatment System；SWTS)排出至周邊海域。再者，對流經水路內的使用過海水，實施例如脫碳酸(曝氣)等的處理。In the above-described seawater desulfurization apparatus, in general, the seawater using a seawater treatment system (SWTS) used as an absorbent in the desulfurization tower is discharged to the surrounding sea area. Further, the seawater used in the water passage is subjected to a treatment such as decarbonation (aeration).
在此，針對以往的海水脫硫裝置，使用圖4簡單地說明其一例。Here, an example of the conventional seawater desulfurization apparatus will be briefly described using FIG. 4 .
圖示的海水脫硫裝置1，一方的海水由脫硫塔2的上部供給並自然落下，與在由脫硫塔2的下部供給而上升的鍋爐排廢氣之間產生氣液接觸。海水與鍋爐排廢氣之氣液接觸是藉由將以預定的間隔呈複數段配置於脫硫塔2內的上下方向之多孔板架3作為濕式基座，使海水及鍋爐排廢氣通過穿設於多孔板架3之多數個孔4來達到的。In the illustrated seawater desulfurization apparatus 1, one seawater is supplied from the upper portion of the desulfurization tower 2 and naturally falls, and gas-liquid contact occurs between the exhaust gas of the boiler that is supplied by the lower portion of the desulfurization tower 2 and rises. The gas-liquid contact between the seawater and the exhaust gas of the boiler is performed by passing the porous plate holder 3 disposed in the upper and lower directions in the desulfurization tower 2 at a predetermined interval as a wet base, and the seawater and the boiler exhaust gas are passed through. This is achieved by a plurality of holes 4 of the perforated plate holder 3.
再者，圖中的符號5為海水供給管，6為使脫硫後的海水流出之使用過海水出口，7為鍋爐排廢氣供給口，8為使脫硫後的鍋爐排廢氣流出之鍋爐排廢氣排氣口。、(參照例如專利文獻1、2)。In addition, the symbol 5 in the figure is a seawater supply pipe, 6 is a seawater outlet for discharging seawater after desulfurization, 7 is a boiler exhaust gas supply port, and 8 is a boiler row for discharging degassed boiler exhaust gas. Exhaust gas exhaust port. (See, for example, Patent Documents 1 and 2).
在這樣的海水脫硫裝置1，會有藉由將脫硫塔2配置於水路(SWTS)9的上方，將脫硫後的使用過海水由開口於脫硫塔2的下端之使用過海水出口6直接落下至水路9內，進行排水之情況。即，藉由將流動於水路9內的稀釋用海水、與由脫硫塔2落下並匯集之使用過海水混合，來將使用過海水予以稀釋並排出。In such a seawater desulfurization apparatus 1, the desulfurization tower 2 is disposed above the waterway (SWTS) 9, and the used seawater after desulfurization is used by the used seawater outlet opening to the lower end of the desulfurization tower 2. 6 Drop directly into the waterway 9 for drainage. In other words, the seawater for dilution flowing in the water passage 9 is mixed with the used seawater dropped and collected by the desulfurization tower 2, and the used seawater is diluted and discharged.
又，在供使用過海水流動之水路9，為了防止鍋爐排廢氣由脫硫塔2流入，設置有延伸至進入水中的位置之氣體封印用隔離壁10。因此，被供給至脫硫塔2的鍋爐排廢氣受到隔離壁10與水面所封印，故，不會漏出至形成在水路9的水面上之空間。Further, in the water passage 9 through which the seawater has flowed, in order to prevent the boiler exhaust gas from flowing in from the desulfurization tower 2, the gas seal partition wall 10 extending to the position entering the water is provided. Therefore, the exhaust gas discharged from the boiler supplied to the desulfurization tower 2 is sealed by the partition wall 10 and the water surface, so that it does not leak into the space formed on the water surface of the water passage 9.
〔專利文獻1〕日本特開平11-290643號公報[Patent Document 1] Japanese Patent Laid-Open No. Hei 11-290643
〔專利文獻2〕日本特開2001-129352號公報[Patent Document 2] Japanese Patent Laid-Open Publication No. 2001-129352
然而，在上述海水脫硫裝置1，對流動於水路9內的使用過海水，在排出至周邊海域前，實施利用曝氣之脫碳酸處理。在此脫碳酸處理，當稀釋用的海水與使用過海水未充分混合時，則會產生脫碳酸性能降低的問題。即，因利用稀釋用海水進行使用過海水的混合、稀釋不充分，造成在濃度上產生不均的話，則使用過稀釋海水流經水路9進行排水為只之間所進行的脫碳酸處理之性能會降低，因此並不理想。特別是流經水路9之稀釋用海水，由於在脫硫塔2的正下方之水面附近(圖4中所示的區域A)，受到氣體封印用而設置的隔離壁10之影響，流動容易被遮斷，故，容易產生使用過稀釋海水的混合不良。However, in the above-described seawater desulfurization apparatus 1, the used seawater flowing in the waterway 9 is subjected to decarbonation treatment by aeration before being discharged to the surrounding sea area. In the decarbonation treatment, when the seawater for dilution is not sufficiently mixed with the used seawater, there is a problem that the decarbonation performance is lowered. In other words, if the mixing and dilution of the used seawater by the seawater for dilution is insufficient, and the concentration is uneven, the performance of the decarbonation treatment by using the over-diluted seawater flowing through the waterway 9 for drainage is performed. Will be lower, so it is not ideal. In particular, the seawater for dilution flowing through the water passage 9 is easily affected by the partition wall 10 provided for the gas seal by the vicinity of the water surface directly below the desulfurization tower 2 (the area A shown in Fig. 4). Since it is interrupted, it is easy to cause poor mixing of the diluted seawater.
本發明是有鑑於上述情事而開發完成之發明，目的在於針對使用海水法之排煙脫硫裝置，藉由促進使用過海水與稀釋用海水之混合、稀釋，能夠在對使用過稀釋海水進行脫碳酸處理之際，防止或抑制脫碳酸性能降低。The present invention has been developed in view of the above circumstances, and an object of the present invention is to provide a flue gas desulfurization apparatus using a seawater method, which can facilitate the use of diluted seawater by promoting mixing and dilution of seawater used for dilution and seawater for dilution. At the time of carbonation treatment, the decarbonation performance is prevented or suppressed from being lowered.
本發明為了解決上述課題，而採用以下的手段。In order to solve the above problems, the present invention employs the following means.
本發明之排煙脫硫裝置，是使脫硫後的使用過海水落下至流動於水路內的稀釋用海水，將受到與前述稀釋用海 水之混合所稀釋的使用過稀釋海水在流動於前述水路內期間進行脫碳酸處理之排煙脫硫裝置，其特徵為：在前述水路內，設置有用來促進前述使用過海水與前述稀釋用海水的混合之混合促進手段。The flue gas desulfurization device of the present invention is a seawater for dilution which is used after the desulfurization of the used seawater is dropped to flow in the waterway, and is subjected to the aforementioned dilution sea. A flue gas desulfurization apparatus which performs decarbonation treatment during the flow of the diluted seawater during use in the water passage, and is characterized in that: in the water passage, a seawater for use and the aforementioned seawater for dilution are provided in the water passage. The mix of mixing promotes means.
若根據這樣之排煙脫硫裝置的話，因在水路內設有用來促進使用過海水與稀釋用海水的混合之混合促進手段，所以，可消除使用過海水與稀釋用海水之混合不良，促進混合、稀釋。According to such a flue gas desulfurization apparatus, since the mixing means for promoting the mixing of the seawater used and the seawater for dilution is provided in the waterway, the mixing failure of the seawater used and the seawater for dilution can be eliminated, and the mixing can be promoted. ,dilution.
在此情況，作為理想的混合促進手段，具有：擾亂海水的流動之靜態攪拌器等的紊亂產生裝置、由水路底面產生細微氣泡之曝氣噴嘴、或紊亂產生裝置及曝氣噴嘴之組合等。In this case, as an ideal means for promoting the mixing, there are a disorder generating device such as a static stirrer that disturbs the flow of seawater, an aeration nozzle that generates fine bubbles from the bottom surface of the water passage, or a combination of a disorder generating device and an aeration nozzle.
若根據上述本發明的話，因藉由在水路內設有用來促進使用過海水與稀釋用海水的混合之混合促進手段，能夠藉由促進混合、稀釋，消除使用過海水與稀釋用海水之混合不良，所以，可獲得在流動於水路內期間所進行的使用過稀釋海水的脫碳酸處理性能之顯著效果。According to the present invention, by providing a mixing promoting means for promoting the mixing of the used seawater and the seawater for dilution in the waterway, it is possible to eliminate mixing failure of the used seawater and the seawater for dilution by promoting mixing and dilution. Therefore, a remarkable effect of the decarbonation treatment performance of the diluted seawater used during the flow in the waterway can be obtained.
以下，根據圖面，說明關於本發明之排煙脫硫裝置的一實施形態。Hereinafter, an embodiment of the flue gas desulfurization apparatus according to the present invention will be described based on the drawings.
在圖1所示的第1實施形態，顯示採用使用海水作為 吸收劑之被稱為海水法的脫硫方式之排煙脫硫裝置(以下稱為海水脫硫裝置)1。In the first embodiment shown in Fig. 1, it is shown that seawater is used as the The absorbent is referred to as a desulfurization type flue gas desulfurization apparatus (hereinafter referred to as seawater desulfurization apparatus) 1 by a seawater method.
此海水脫硫裝置1藉由對大致呈圓筒狀的脫硫塔2供給鍋爐排廢氣及海水，使由上方自然落下之作為吸收劑的海水與由下方上生的鍋爐排廢氣在成為濕式基座之多孔板架3進行氣液接觸而脫硫。In the seawater desulfurization apparatus 1, the exhaust gas and the seawater are supplied to the boiler in the substantially cylindrical desulfurization tower 2, and the seawater as the absorbent which is naturally dropped from above and the exhaust gas discharged from the boiler below are wetted. The porous plate holder 3 of the susceptor is subjected to gas-liquid contact to desulfurize.
在脫硫塔2的內部，複數段(在圖示例為3段)的多孔板架3在上下方向隔著間隔，平行地設置著。在各多孔板架3，穿設有成為鍋爐排廢氣及海水的通路之多數個孔4。Inside the desulfurization tower 2, a plurality of perforated racks 3 (three stages in the illustrated example) are arranged in parallel at intervals in the vertical direction. A plurality of holes 4 serving as passages for exhaust gas and seawater of the boiler are bored in each of the perforated plates 3.
成為吸收劑之海水是經由海水供給管5，導入至脫硫塔2的上部。此海水由大致均等地配置於脫硫塔2內的上部平面之多數個海水噴嘴5a，朝配置於下方的多孔板架3流出。再者，在脫硫塔2的底面部，開口有使用過海水出口6，該出口是將通過了多孔板架3之脫硫後的使用過海水直接落下至後數的水路(Sea Water Treatment System；SWTS)9。The seawater to be an absorbent is introduced into the upper portion of the desulfurization tower 2 via the seawater supply pipe 5. This seawater flows out from the plurality of seawater nozzles 5a disposed on the upper plane in the desulfurization tower 2 substantially uniformly, and flows out toward the perforated tray 3 disposed below. Further, in the bottom surface portion of the desulfurization tower 2, a seawater outlet 6 is used, which is a waterway that directly drops the used seawater that has passed through the desulfurization of the perforated tray 3 to the last number (Sea Water Treatment System) ;SWTS) 9.
另外，鍋爐排廢氣是由連通於較多孔板架3更下方的鍋爐排廢氣供給口7供給至脫硫塔2的內部，通過多孔板架3後，由開口於脫硫塔2的上部之鍋爐排廢氣排氣口8排出。Further, the exhaust gas of the boiler is supplied to the inside of the desulfurization tower 2 by the boiler exhaust gas supply port 7 connected to the lower side of the relatively porous rack 3, and after passing through the perforated rack 3, the boiler is opened to the upper portion of the desulfurization tower 2. The exhaust gas exhaust port 8 is exhausted.
即，由上方自然落下的海水與由下方上升的鍋爐排廢氣在通過穿設於各段的多孔板架3的孔4之際會氣液接觸，藉由海水吸收鍋爐排廢氣中之硫氧化物，來進行脫硫。That is, the seawater naturally falling from above and the exhaust gas of the boiler rising from the lower side are in gas-liquid contact while passing through the holes 4 of the perforated plate frame 3 penetrating each stage, and the seawater absorbs the sulfur oxides in the exhaust gas of the boiler. To carry out desulfurization.
上述脫硫塔2，是將使用過海水出口6連通於導入稀釋用海水並加以流通之水路9的上部開口來加以配置。此水路9是將稀釋用海水導入並加以流動，並且將由2的使用過海水出口6落下並匯集的使用過海水加以稀釋，進一步對稀釋後的使用過稀釋海水實施脫碳酸處理後予以排放之流路，通常採用暗渠。稀釋用海水與使用過海水匯集混合之使用過稀釋海水被導入至水路9，再排出至周邊海域，但在流經水路9的途中實施利用曝氣之脫碳酸處理。The desulfurization tower 2 is disposed such that the seawater outlet 6 is communicated with the upper opening of the water passage 9 into which the seawater for dilution is introduced and distributed. This waterway 9 is a stream which is introduced and flows through the seawater for dilution, and is diluted by the used seawater which has been dropped and collected by the used seawater outlet 6, and is further subjected to decarbonation treatment after the diluted used seawater is discharged. Road, usually using culverts. The diluted seawater mixed with the seawater used for mixing and the used seawater is introduced into the waterway 9 and discharged to the surrounding sea area, but the decarbonation treatment by aeration is performed while flowing through the waterway 9.
又，在將脫硫塔2設置於水路9之開口部的下方，至稀釋用海水所流動的水面更低的位置即進入至海水中的位置為止，設置有氣體封印用隔離壁10。此隔離壁10以包圍使用過海水出口6的開口部外周之方式形成，所以，由鍋爐排廢氣供給口7供給至脫硫塔2之鍋爐排廢氣會受到隔離壁10與水面所封印，防止流入至形成於水路9的水面上之空間內。In addition, the gas sealing partition wall 10 is provided in the lower portion of the opening of the water passage 9 and at a position lower than the water surface through which the seawater for dilution flows in the seawater. Since the partition wall 10 is formed so as to surround the outer periphery of the opening portion through which the seawater outlet 6 is used, the exhaust gas discharged from the boiler exhaust gas supply port 7 to the desulfurization tower 2 is sealed by the partition wall 10 and the water surface to prevent the inflow. It is formed in the space formed on the water surface of the waterway 9.
又，在水路9的內部，設有擾亂稀釋用海水的流動之紊亂產生器20，其作為用來促進使用過海水與稀釋用海水的混合之混合促進手段。Further, inside the water path 9, a disturbance generator 20 that disturbs the flow of the seawater for dilution is provided as a mixing promotion means for promoting the mixing of the seawater used for use and the seawater for dilution.
如圖1所示的紊亂產生器20是在流動於水路9內之稀釋用海水的流動方向，設置於較脫硫塔2的設置位置更上游側。作為此紊亂產生器20，可使用例如靜待混合器這種，攪拌稀釋用海水的流動等，形成漩渦般之紊亂者。但，紊亂產生器20不限於上述靜態混合器，亦可採用例如配置於隔離壁10的下方，供稀釋用海水通過之板狀或籃 子狀之網構件。再者，紊亂產生器20的設置位置，因承受脫碳酸處理的使用過稀釋海水可充分被混合的話即可，所以，成為較在水路9內進行脫碳酸處理的位置更上游側，理想為脫硫塔2的附近位置。The disturbance generator 20 shown in FIG. 1 is disposed on the upstream side of the installation position of the desulfurization tower 2 in the flow direction of the seawater for dilution flowing in the water passage 9. As the disturbance generator 20, for example, a static mixer or the like can be used to agitate the flow of the seawater for dilution to form a vortex-like disorder. However, the disturbance generator 20 is not limited to the above-described static mixer, and may be, for example, a plate or basket disposed below the partition wall 10 for the passage of the seawater for dilution. Sub-network member. In addition, since the installation position of the disturbance generator 20 can be sufficiently mixed by using the diluted seawater subjected to the decarbonation treatment, it is more upstream than the position where the decarbonation treatment is performed in the water passage 9, and it is preferable to take off. The location near the sulfur tower 2.
藉由設置這樣的紊亂產生器20，在通過水路9後導入至脫硫塔2的下方之稀釋用海水，藉由紊亂產生器20的作用，產生如圖中的箭號a所示的漩渦等之紊亂。因此，由脫硫塔2的使用過海水出口6直接落下而與稀釋用海水流匯集之使用過海水會被漩渦等的紊亂所攪拌，而促進了混合。By providing such a disturbance generator 20, the seawater for dilution introduced into the lower portion of the desulfurization tower 2 after passing through the water passage 9 generates a vortex as indicated by an arrow a in the figure by the action of the disturbance generator 20. Disorder. Therefore, the used seawater which is directly dropped by the seawater outlet 6 of the desulfurization tower 2 and collected by the seawater for dilution is stirred by a disorder such as a vortex, and the mixing is promoted.
因此，流經於水路9之使用過稀釋海水被充分地攪拌、混合，在使用過海水的濃度大致均等化之狀態下流動，承受利用曝氣之脫碳酸處理，因此，可提升水路9(SWTS)的脫碳酸性能。Therefore, the used diluted seawater flowing through the water passage 9 is sufficiently stirred and mixed, flows in a state where the concentration of the used seawater is substantially equalized, and is subjected to decarbonation treatment by aeration, so that the water passage 9 can be lifted (SWTS) Decarbonation performance.
接著，參照圖2說明本發明的第2實施形態。再者，針對與上述第1實施形態相同的部分賦予相同的符號，並省略其詳細說明。Next, a second embodiment of the present invention will be described with reference to Fig. 2 . The same portions as those in the above-described first embodiment are denoted by the same reference numerals, and their detailed descriptions are omitted.
在此實施形態，促進使用過海水與稀釋用海水之混合促進手段不同，在水路9的底面設置用來產生細微氣泡b之曝氣噴嘴30來代替上述紊亂產生器20。在圖示例，曝氣噴嘴30配置於脫硫塔2的下方，於由使用過海水出口6所流下的使用過海水與稀釋用海水匯集的區域，產生細微氣泡b。In this embodiment, the aeration nozzle 30 for generating the fine bubbles b is provided on the bottom surface of the water passage 9 instead of the above-described disturbance generator 20, in order to promote the mixing promotion means for using the seawater and the seawater for dilution. In the example of the drawing, the aeration nozzle 30 is disposed below the desulfurization tower 2, and a fine bubble b is generated in a region where the used seawater and the dilution seawater flowed down through the seawater outlet 6 are collected.
因此，流動於水路9的使用過稀釋海水被充分地攪拌 、混合，在使用過海水的濃度大致均等化之狀態下流動，承受利用曝氣之脫碳酸處理，因此，可提升水路9(SWTS)的脫碳酸性能。Therefore, the used diluted seawater flowing on the waterway 9 is sufficiently stirred. The mixture is mixed and flows in a state where the concentration of the used seawater is substantially equalized, and is subjected to decarbonation treatment by aeration, so that the decarbonation performance of the water channel 9 (SWTS) can be improved.
接著，參照圖3說明本發明的第3實施形態。再者，針對與上述實施形態相同的部分賦予相同的符號，並省略其詳細說明。Next, a third embodiment of the present invention will be described with reference to Fig. 3 . The same portions as those of the above-described embodiments are denoted by the same reference numerals, and their detailed descriptions are omitted.
在此實施形態，並用上述紊亂產生器20與曝氣噴嘴30，作為用來促進使用過海水與稀釋用海水之混合的混合促進手段。即，藉由紊亂產生器20產生漩渦等的紊亂，並且由曝氣噴嘴30產生細微氣泡b，藉此，流動於水路9之使用過稀釋海水進一步被充分地攪拌、混合。因此，使用過稀釋海水在使用過海水的濃度更進一步均等化的狀態下流動，承受利用曝氣之脫碳酸處理，因此，可提升水路9(SWTS)的脫碳酸性能。In this embodiment, the disturbance generator 20 and the aeration nozzle 30 are used in combination as a mixing promotion means for promoting the mixing of the seawater used and the seawater for dilution. In other words, the disorder generator 20 generates a disorder such as a vortex, and the fine bubbles b are generated by the aeration nozzle 30, whereby the used diluted seawater flowing through the water passage 9 is further sufficiently stirred and mixed. Therefore, the use of the over-diluted seawater flows in a state where the concentration of the used seawater is further equalized, and is subjected to the decarbonation treatment by the aeration, so that the decarbonation performance of the waterway 9 (SWTS) can be improved.
如此，若根據上述本發明的話，因在水路9內設置有用來促進使用過海水與稀釋用海水之混合的混合促進手段，所以，藉由促進混合、稀釋，可消除使用過海水與稀釋用海水之混合不良。因此，可提升在流動於水路9內的期間所進行的使用過稀釋海水的脫碳酸處理，故，能夠減低對排放使用過稀釋海水的周邊海域之環境的影響。As described above, according to the present invention, since the mixing means for promoting the mixing of the used seawater and the seawater for dilution is provided in the water passage 9, the seawater used for dilution and the seawater for dilution can be eliminated by promoting mixing and dilution. Poor mixing. Therefore, the decarbonation treatment using the diluted seawater performed during the flow in the water passage 9 can be improved, so that the influence on the environment in the surrounding sea area where the diluted seawater is used can be reduced.
再者，本發明不限於上述實施形態，在不超出本發明的技術思想範圍內，可適宜地進行各種變更。In addition, the present invention is not limited to the above-described embodiments, and various modifications can be appropriately made without departing from the scope of the technical idea of the present invention.
1‧‧‧排煙脫硫裝置(海水脫硫裝置)1‧‧‧Exhaust gas desulfurization device (seawater desulfurization device)
2‧‧‧脫硫塔2‧‧‧Desulfurization tower
3‧‧‧多孔板架3‧‧‧Perforated plate rack
5‧‧‧海水供給管5‧‧‧Seawater supply pipe
6‧‧‧使用過海水出口6‧‧‧Used seawater outlets
7‧‧‧鍋爐排廢氣供給口7‧‧‧Boiler exhaust gas supply port
8‧‧‧鍋爐排廢氣排氣口8‧‧‧Boiler exhaust exhaust port
9‧‧‧水路(SWTS)9‧‧‧ Waterway (SWTS)
20‧‧‧紊亂產生器20‧‧‧Disorder generator
30‧‧‧曝氣噴嘴(混合促進手段)30‧‧‧Aeration nozzle (mixing promotion means)
G‧‧‧鍋爐排廢氣G‧‧‧Boiler exhaust
S‧‧‧海水S‧‧‧Seawater
圖1是顯示本發明之排煙脫硫裝置的第1實施形態的構成圖。Fig. 1 is a configuration diagram showing a first embodiment of the flue gas desulfurization apparatus of the present invention.
圖2是顯示本發明之排煙脫硫裝置的第2實施形態的構成圖。Fig. 2 is a configuration diagram showing a second embodiment of the flue gas desulfurization apparatus of the present invention.
圖3是顯示本發明之排煙脫硫裝置的第3實施形態的構成圖。Fig. 3 is a configuration diagram showing a third embodiment of the flue gas desulfurization apparatus of the present invention.
圖4是顯示排煙脫硫裝置之以往例的構成圖。Fig. 4 is a configuration diagram showing a conventional example of a flue gas desulfurization apparatus.
1‧‧‧排煙脫硫裝置(海水脫硫裝置)1‧‧‧Exhaust gas desulfurization device (seawater desulfurization device)
2‧‧‧脫硫塔2‧‧‧Desulfurization tower
3‧‧‧多孔板架3‧‧‧Perforated plate rack
4‧‧‧孔4‧‧‧ hole
5‧‧‧海水供給管5‧‧‧Seawater supply pipe
5a‧‧‧海水噴嘴5a‧‧‧Seawater nozzle
6‧‧‧使用過海水出口6‧‧‧Used seawater outlets
7‧‧‧鍋爐排廢氣供給口7‧‧‧Boiler exhaust gas supply port
8‧‧‧鍋爐排廢氣排氣口8‧‧‧Boiler exhaust exhaust port
9‧‧‧水路9‧‧‧ Waterway
10‧‧‧隔離壁10‧‧‧ partition wall
20‧‧‧紊亂產生器20‧‧‧Disorder generator
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007040459A JP5199585B2 (en) | 2007-02-21 | 2007-02-21 | Flue gas desulfurization equipment |
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| Publication Number | Publication Date |
|---|---|
| TW200848148A TW200848148A (en) | 2008-12-16 |
| TWI389734B true TWI389734B (en) | 2013-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW097105924A TWI389734B (en) | 2007-02-21 | 2008-02-20 | Flue gas desulfurization device |
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| Country | Link |
|---|---|
| JP (1) | JP5199585B2 (en) |
| MY (1) | MY154937A (en) |
| SG (1) | SG178769A1 (en) |
| TW (1) | TWI389734B (en) |
| WO (1) | WO2008102824A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5166791B2 (en) * | 2007-07-24 | 2013-03-21 | 三菱重工業株式会社 | Flue gas desulfurization equipment |
| WO2010043083A1 (en) * | 2008-10-17 | 2010-04-22 | Peng Sigan | Process and device for simultaneously desulfurizing and denitrating the flue gas with the seawater |
| WO2010095214A1 (en) * | 2009-02-17 | 2010-08-26 | 月島機械株式会社 | Wastewater treating system, and wastewater treating method |
| JP5754877B2 (en) * | 2009-03-31 | 2015-07-29 | 三菱日立パワーシステムズ株式会社 | Oxidation tank, seawater treatment device and seawater desulfurization system |
| ATE526071T1 (en) * | 2009-06-05 | 2011-10-15 | Ae & E Lentjes Gmbh | SCRUBBER TOWER AND ASSOCIATED FLUE GAS CLEANING DEVICE |
| WO2012127689A1 (en) * | 2011-03-24 | 2012-09-27 | 月島機械株式会社 | Flue gas desulfurization apparatus |
| JP2012236170A (en) * | 2011-05-13 | 2012-12-06 | Babcock Hitachi Kk | Method and apparatus for regeneration of deteriorated absorbing liquid, and carbon dioxide recovery system using the same |
| CN103030231B (en) * | 2011-09-29 | 2015-04-08 | 鞍钢股份有限公司 | Recovery system and recovery process for desulfurized seawater |
| JP5998915B2 (en) * | 2012-12-19 | 2016-09-28 | 富士電機株式会社 | Exhaust gas treatment equipment |
| CN108218050A (en) * | 2018-03-23 | 2018-06-29 | 东方电气集团东方锅炉股份有限公司 | The quality recovery device and restoration methods of acid seawater after a kind of flue gas desulfurization with seawater |
| CN109939547B (en) * | 2019-04-01 | 2021-08-17 | 唐山伟德船用设备有限公司 | Washing tower suitable for ship exhaust gas desulfurization |
| CN111718018A (en) * | 2020-07-17 | 2020-09-29 | 中国华电科工集团有限公司 | Forced flowing aeration tank of seawater desulfurization system |
| CN113750748A (en) * | 2021-10-19 | 2021-12-07 | 中船黄埔文冲船舶有限公司 | Desulfurization system for ship tail gas |
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| JP2001129352A (en) * | 1999-11-02 | 2001-05-15 | Fujikasui Engineering Co Ltd | Exhaust gas desulfurization advanced treatment process using sea water |
| JP4460975B2 (en) * | 2004-08-20 | 2010-05-12 | 三菱重工業株式会社 | Seawater treatment method and seawater treatment apparatus |
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2007
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| MY154937A (en) | 2015-08-28 |
| WO2008102824A1 (en) | 2008-08-28 |
| SG178769A1 (en) | 2012-03-29 |
| JP5199585B2 (en) | 2013-05-15 |
| TW200848148A (en) | 2008-12-16 |
| JP2008200621A (en) | 2008-09-04 |
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