CN201287024Y - Eddy flow type desulfurization absorber - Google Patents
Eddy flow type desulfurization absorber Download PDFInfo
- Publication number
- CN201287024Y CN201287024Y CNU2008201002644U CN200820100264U CN201287024Y CN 201287024 Y CN201287024 Y CN 201287024Y CN U2008201002644 U CNU2008201002644 U CN U2008201002644U CN 200820100264 U CN200820100264 U CN 200820100264U CN 201287024 Y CN201287024 Y CN 201287024Y
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- CN
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- Prior art keywords
- absorption tower
- flue
- flue gas
- tower
- flues
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 28
- 230000023556 desulfurization Effects 0.000 title abstract description 25
- 239000006096 absorbing agent Substances 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 206010022000 influenza Diseases 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003595 mist Substances 0.000 abstract description 2
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
本实用新型公开了一种旋流式脱硫吸收塔，吸收塔(1)底部为装有洗涤液的浆液池(2)，该浆液池(2)内装有搅拌装置(3)；所述吸收塔(1)中部侧壁开口连接有进烟道(4)；所述吸收塔(1)顶部开口连接出烟道(5)，在所述进烟道(4)与出烟道(5)之间的吸收塔(1)内依次设有的喷淋层(6)和除雾器(7)，其特征在于：所述吸收塔(1)横截面为圆形，所述进烟道(4)出口端与吸收塔(1)相切，烟气切向进入吸收塔(1)形成旋流。本实用新型使得烟气切向进入形成旋流，消除了烟气流动死滞区，使得烟气分布更加均匀。同时还延长了烟气在脱硫塔化学反应区域的停留时间，与自上而下的浆液接触更充分，时间更长。达到提高SO2脱除效率的效果。
The utility model discloses a swirl type desulfurization absorption tower. The bottom of the absorption tower (1) is a slurry pool (2) equipped with washing liquid, and the slurry pool (2) is equipped with a stirring device (3); the absorption tower (1) The opening of the side wall of the middle part is connected with the flue inlet (4); The spray layer (6) and the mist eliminator (7) that are arranged in sequence in the absorption tower (1) between are characterized in that: the cross section of the absorption tower (1) is circular, and the flue inlet (4 ) outlet end is tangent to the absorption tower (1), and the flue gas enters the absorption tower (1) tangentially to form a swirling flow. The utility model makes the flue gas tangentially enter to form a swirling flow, eliminates the stagnation area of the flue gas flow, and makes the flue gas distribution more uniform. At the same time, the residence time of the flue gas in the chemical reaction area of the desulfurization tower is extended, and the contact with the slurry from top to bottom is more sufficient and the time is longer. To achieve the effect of improving SO2 removal efficiency.
Description
技术领域 technical field
本实用新型属于一种烟气脱硫装置，具体地说，是一种烟气在吸收塔内形成旋流的脱硫吸收塔。The utility model belongs to a flue gas desulfurization device, in particular to a desulfurization absorption tower in which the flue gas forms a swirling flow in the absorption tower.
背景技术 Background technique
烟气脱硫技术包括湿法脱硫和干法脱硫等。其中湿法脱硫技术的运用最为广泛。湿法烟气脱硫是当今国际上85％左右大型火电厂采用的工艺流程，而烟气脱硫吸收塔是其关键核心设备，已在工程上得到了广泛应用。湿法烟气脱硫吸收塔的原理是利用石灰石碱性浆液从上向下喷淋，烟气从下向上流动，石灰石浆液滴在下落过程中吸收烟气中的SO2，达到脱除烟气中的SO2的目的。Flue gas desulfurization technologies include wet desulfurization and dry desulfurization. Among them, wet desulfurization technology is the most widely used. Wet flue gas desulfurization is the technological process adopted by about 85% of large thermal power plants in the world today, and the flue gas desulfurization absorption tower is its key core equipment, which has been widely used in engineering. The principle of the wet flue gas desulfurization absorption tower is to use limestone alkaline slurry to spray from top to bottom, the flue gas flows from bottom to top, and the limestone slurry droplets absorb SO 2 in the flue gas during the falling process to achieve the removal of flue gas. The purpose of SO 2 .
目前，已有的由于湿法烟气脱硫技术都具有投资大、动力消耗大、占地面积大、设备复杂、运行费用和技术要求高等缺点，现运行的湿法烟气脱硫吸收塔普遍采用单一入口塔形，其脱硫吸收塔内部烟气流动很不均匀，甚至会形成死滞区域，其流动特性直接影响脱硫吸收塔的脱硫效率。如何提高湿法脱硫吸收塔的运行效率和降低脱硫吸收塔的运行能耗成了脱硫吸收塔领域的迫切需要解决的问题。At present, because the existing wet flue gas desulfurization technologies have the disadvantages of large investment, large power consumption, large floor area, complex equipment, high operating costs and technical requirements, the current wet flue gas desulfurization absorption tower generally adopts a single The entrance tower shape, the flue gas flow inside the desulfurization absorption tower is very uneven, and even a stagnant area will be formed, and its flow characteristics directly affect the desulfurization efficiency of the desulfurization absorption tower. How to improve the operating efficiency of the wet desulfurization absorption tower and reduce the operating energy consumption of the desulfurization absorption tower has become an urgent problem in the field of desulfurization absorption towers.
实用新型内容 Utility model content
本实用新型所要解决的技术问题在于提供一种烟气在吸收塔内形成旋流，流动均匀的旋流式脱硫吸收塔。The technical problem to be solved by the utility model is to provide a swirling flow desulfurization absorption tower in which flue gas forms a swirling flow in the absorption tower and flows evenly.
本实用新型的技术方案如下：一种旋流式脱硫吸收塔，吸收塔底部为装有洗涤液的浆液池，该浆液池内装有搅拌装置；所述吸收塔中部侧壁开口连接有进烟道；所述吸收塔顶部开口连接出烟道，在所述进烟道与出烟道之间的吸收塔内设有的喷淋层和除雾器，其关键在于：所述进烟道出口端中心线与小于吸收塔内壁的圆相切，烟气切向进入吸收塔形成旋流。The technical scheme of the utility model is as follows: a swirling flow desulfurization absorption tower, the bottom of the absorption tower is a slurry pool with washing liquid, and the slurry pool is equipped with a stirring device; the opening of the side wall of the middle part of the absorption tower is connected with a flue The opening at the top of the absorption tower is connected to the flue, and the spray layer and the demister are arranged in the absorption tower between the flue inlet and the flue outlet, the key is: the outlet end of the flue inlet The center line is tangent to a circle smaller than the inner wall of the absorption tower, and the flue gas enters the absorption tower tangentially to form a swirling flow.
烟气切向进入吸收塔形成旋流。做洗涤液的石灰石浆液自上而下，烟气自下而上接触反应。形成旋流的烟气能够消除脱硫吸收塔内流动死滞区域，保证塔内流场更加均匀。The flue gas enters the absorption tower tangentially to form a swirling flow. The limestone slurry used as washing liquid is from top to bottom, and the flue gas is contacted and reacted from bottom to top. The swirling flue gas can eliminate the flow stagnation area in the desulfurization absorption tower and ensure a more uniform flow field in the tower.
上述吸收塔连接有两个进烟道，所述两进烟道分别位于吸收塔相对侧，所述两进烟道输出烟气方向相反。相对侧同时进入，烟气更加均匀，且能形成合力加速形成旋流。The above-mentioned absorption tower is connected with two flue inlets, the two inlet flues are respectively located on opposite sides of the absorption tower, and the directions of outputting flue gas from the two inlet flues are opposite. The opposite side enters at the same time, the smoke is more uniform, and can form a combined force to accelerate the formation of swirl.
上述两进烟道进口端连接同一主进烟道，所述两进烟道内均装有控制挡板。可以通过控制挡板控制使得两进烟道烟气流量相当。The inlet ends of the above two inlet flues are connected to the same main inlet flue, and control baffles are installed in the two inlet flues. The flue gas flow of the two inlet flues can be controlled by controlling the baffle.
有益效果：本实用新型使得烟气切向进入形成旋流，消除了烟气流动死滞区，使得烟气分布更加均匀。同时还延长了烟气在脱硫塔化学反应区域的停留时间，与自上而下的浆液接触更充分，时间更长。达到提高SO2脱除效率的效果。Beneficial effects: the utility model makes the flue gas tangentially enter to form a swirling flow, eliminates the stagnation area of the flue gas flow, and makes the flue gas distribution more uniform. At the same time, the residence time of the flue gas in the chemical reaction area of the desulfurization tower is extended, and the contact with the slurry from top to bottom is more sufficient and the time is longer. To achieve the effect of improving SO2 removal efficiency.
附图说明 Description of drawings
图1是本实用新型的结构示意图；Fig. 1 is a structural representation of the utility model;
图2是图1的A-A剖视图。Fig. 2 is a sectional view along A-A of Fig. 1 .
具体实施方式 Detailed ways
下面结合附图和实施例对本实用新型作进一步说明：Below in conjunction with accompanying drawing and embodiment the utility model is further described:
如图1、图2所示，本实用新型一种旋流式脱硫吸收塔，吸收塔1底部为装有洗涤液的浆液池2，该浆液池2内装有搅拌装置3；所述吸收塔1中部侧壁开口连接有进烟道4；所述吸收塔1顶部开口连接出烟道5，在所述进烟道4与出烟道5之间的吸收塔1内自下而上依次设有的喷淋层6和除雾器7，所述喷淋层6通过管道串联循环泵与浆液池2相连。所述吸收塔1横截面为圆形，所述进烟道4出口端中心线与小于吸收塔1内壁的圆9相切，烟气切向进入吸收塔1形成旋流。所述吸收塔1连接有两个进烟道4，所述两进烟道4分别位于吸收塔1相对侧，所述两进烟道4输出烟气方向相反。所述所述两进烟道4进口端连接同一主进烟道8，所述两进烟道4内均装有控制挡板4a。As shown in Fig. 1 and Fig. 2, a kind of swirl type desulfurization absorption tower of the present utility model, the bottom of
主进烟道8汇集的烟气由进烟道4进入吸收塔1。烟气切向进入在吸收塔1内形成旋流自下而上，浆液池2的石灰石浆液由循环泵送入喷淋层6自上而下喷出在吸收塔内反应。The flue gas collected by the
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201002644U CN201287024Y (en) | 2008-10-16 | 2008-10-16 | Eddy flow type desulfurization absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201002644U CN201287024Y (en) | 2008-10-16 | 2008-10-16 | Eddy flow type desulfurization absorber |
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| Publication Number | Publication Date |
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| CN201287024Y true CN201287024Y (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201002644U Expired - Lifetime CN201287024Y (en) | 2008-10-16 | 2008-10-16 | Eddy flow type desulfurization absorber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106659970A (en) * | 2015-03-16 | 2017-05-10 | 富士电机株式会社 | Exhaust gas treatment apparatus |
| CN111346492A (en) * | 2020-03-27 | 2020-06-30 | 国网山东省电力公司电力科学研究院 | Method for prolonging retention time of flue gas in desulfurizing tower |
-
2008
- 2008-10-16 CN CNU2008201002644U patent/CN201287024Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106659970A (en) * | 2015-03-16 | 2017-05-10 | 富士电机株式会社 | Exhaust gas treatment apparatus |
| EP3272411A4 (en) * | 2015-03-16 | 2018-03-14 | Fuji Electric Co., Ltd. | Exhaust gas treatment apparatus |
| CN106659970B (en) * | 2015-03-16 | 2018-05-08 | 富士电机株式会社 | Emission-control equipment |
| CN111346492A (en) * | 2020-03-27 | 2020-06-30 | 国网山东省电力公司电力科学研究院 | Method for prolonging retention time of flue gas in desulfurizing tower |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |
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| CX01 | Expiry of patent term |