CN204469408U - High-efficient multi-pipe spiral demist dust arrester - Google Patents
High-efficient multi-pipe spiral demist dust arrester Download PDFInfo
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- CN204469408U CN204469408U CN201520073469.8U CN201520073469U CN204469408U CN 204469408 U CN204469408 U CN 204469408U CN 201520073469 U CN201520073469 U CN 201520073469U CN 204469408 U CN204469408 U CN 204469408U
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- 239000000428 dust Substances 0.000 title claims abstract description 64
- 244000309464 bull Species 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003546 flue gas Substances 0.000 abstract description 16
- 239000003595 mist Substances 0.000 abstract description 10
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 abstract description 6
- 230000023556 desulfurization Effects 0.000 abstract description 6
- 238000000746 purification Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002002 slurry Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000012719 wet electrostatic precipitator Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical class [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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Abstract
一种高效多管螺旋除雾除尘装置，包括外壳体，在高度方向间隔安装在外壳体内部的数个固定支架，分布在外壳体内部并立式安装在两个固定支架之间的由若干个管状螺旋除雾除尘器构成的除雾除尘组合体，安装在固定支架上的冲洗系统。本实用新型高效多管螺旋除雾除尘装置，除雾除尘效率高，超净排放。可广泛应用于电站燃煤锅炉湿法烟气脱硫系统的烟气净化处理中。
A high-efficiency multi-tube spiral demist and dust removal device includes an outer shell, several fixed brackets installed in the outer shell at intervals in the height direction, and several fixed brackets distributed inside the outer shell and installed vertically between the two fixed brackets. The fog and dust removal combination composed of tubular spiral mist and dust collectors, and the flushing system installed on the fixed bracket. The utility model has high-efficiency multi-tube spiral demist and dust removal device, which has high demist and dust removal efficiency and ultra-clean emission. It can be widely used in the flue gas purification treatment of the wet flue gas desulfurization system of the coal-fired boiler of the power station.
Description
技术领域 technical field
本发明涉及一种高效多管螺旋除雾除尘装置，可广泛应用于电站燃煤锅炉湿法烟气脱硫系统的烟气净化处理中。 The invention relates to a high-efficiency multi-tube spiral demist and dust removal device, which can be widely used in the flue gas purification treatment of a coal-fired boiler wet flue gas desulfurization system in a power station.
背景技术 Background technique
除雾除尘器是湿法烟气脱硫系统中的关键设备，经脱硫吸收塔处理后的烟气携带大量浆体液滴，这些液滴包含有固形物或可溶物，他们主要是吸收SO2后的生成物、过剩的脱硫剂以及未被捕集的烟尘，如果不去除，这些液滴将发生沉积、堵塞、结垢以及二次污染、石膏雨，后续设备腐蚀等一系列问题。除雾除尘器的功能就是尽可能去除这些液滴，对脱硫后的烟气进行气水分离，除雾除尘器的性能不仅影响脱硫系统的安全可靠运行，而且直接影响排放指标。 The mist and dust collector is the key equipment in the wet flue gas desulfurization system. The flue gas treated by the desulfurization absorption tower carries a large number of slurry droplets. These droplets contain solids or solubles. They are mainly after absorbing SO2. If the product, excess desulfurizer and uncaptured soot are not removed, these droplets will cause a series of problems such as deposition, clogging, scaling, secondary pollution, gypsum rain, and subsequent equipment corrosion. The function of the mist and dust collector is to remove these droplets as much as possible, and to separate the gas and water from the desulfurized flue gas. The performance of the mist and dust collector not only affects the safe and reliable operation of the desulfurization system, but also directly affects the emission indicators.
发明内容 Contents of the invention
目前，现有的除雾除尘器，一般是折流板除雾除尘器，折流板除雾除尘器有平板式、屋脊式、组合型等多种布置方式，其出口雾滴含量一个冲洗周期内平均保证值为75mg/Nm3，压降一般小于200Pa，屋脊式除雾除尘器临界分离粒径20～30μm，实际运行过程中，由于受烟气流速、浆液含尘浓度、叶片结构、叶片间距及除雾除尘器布置等因素影响，如后续不采取湿式静电除尘器等烟气净化处理措施，难于保证火电厂烟尘排放浓度≤20mg/Nm3的基本要求，但即使后续增加湿式静电除尘技术要实现≤5mg/Nm3超净排放的指标也很困难。 At present, the existing mist and dust collectors are generally baffle plate mist and dust collectors. Baffle plate mist and dust collectors have various layouts such as flat type, roof type, and combined type. The internal average guaranteed value is 75mg/Nm 3 , the pressure drop is generally less than 200Pa, and the critical separation particle size of the roof-type mist and dust collector is 20-30μm. Influenced by factors such as spacing and arrangement of mist and dust collectors, it is difficult to ensure the basic requirement that the smoke and dust emission concentration of thermal power plants is ≤20mg/Nm 3 if no wet electrostatic precipitator and other flue gas purification treatment measures are taken in the future, but even if wet electrostatic precipitator technology is added in the future It is also very difficult to achieve the ultra-clean emission target of ≤5mg/Nm 3 .
本发明的目的在于提供一种除雾除尘效率高、超净排放的高效多管螺旋除雾除尘装置。 The object of the present invention is to provide a high-efficiency multi-pipe spiral demist and dust removal device with high fog and dust removal efficiency and ultra-clean discharge.
为了达到上述目的，本发明高效多管螺旋除雾除尘装置，包括外壳体，在高度方向间隔安装在外壳体内部的数个固定支架，分布在外壳体内部并立式安装在两个固定支架之间的由若干个管状螺旋除雾除尘器构成的除雾除尘组合体，安装在固定支架上的冲洗系统。 In order to achieve the above object, the high-efficiency multi-tube spiral demist and dust removal device of the present invention includes an outer shell, several fixed brackets installed in the outer shell at intervals in the height direction, distributed inside the outer shell and vertically installed between the two fixed brackets The fog and dust removal combination composed of several tubular spiral fog and dust collectors, and the flushing system installed on the fixed bracket.
本发明高效多管螺旋除雾除尘装置，所说的若干个管状螺旋除雾除尘器，每个管状螺旋除雾除尘器包括安装在固定支架上的外圆筒、螺旋轴，位于外圆筒内并安装在螺旋轴上的螺旋叶片。 The high-efficiency multi-tube spiral fog and dust removal device of the present invention, said several tubular spiral fog and dust collectors, each tubular spiral fog and dust collector includes an outer cylinder and a screw shaft installed on a fixed bracket, and is located in the outer cylinder And the screw blade installed on the screw shaft.
本发明高效多管螺旋除雾除尘装置，所述的螺旋叶片，其上设置有若干个径向孔。 In the high-efficiency multi-tube spiral fog and dust removal device of the present invention, the spiral blade is provided with several radial holes.
本发明高效多管螺旋除雾除尘装置，所说的螺旋叶片，可以采用单头结构，也可以采用多头结构。 In the high-efficiency multi-pipe spiral fog and dust removal device of the present invention, the spiral blades can adopt a single-head structure or a multi-head structure.
本发明高效多管螺旋除雾除尘装置，所说的除雾除尘组合体，根据烟气排放及阻力要求，在外壳体内部可以单层布置，也可以多层布置。 The high-efficiency multi-tube spiral demist and dust removal device of the present invention, the said demist and dust removal assembly, can be arranged in a single layer or in multiple layers inside the outer casing according to the requirements of smoke emission and resistance.
本发明高效多管螺旋除雾除尘装置，在每层除雾除尘组合体上下位置均设置冲洗系统。冲洗水压力、水量及冲洗频次根据实际运行工况设定。 The high-efficiency multi-tube spiral demist and dust removal device of the present invention is equipped with a flushing system at the upper and lower positions of each layer of the demist and dust removal assembly. The flushing water pressure, water volume and flushing frequency are set according to the actual operating conditions.
本发明高效多管螺旋除雾除尘装置，其工作原理是：含有脱硫浆液及粉尘的烟气自除雾除尘组合体下部进入，由于螺旋叶片的导流作用，烟气在高速流动过程中不断改变流动方向，呈螺旋上升，烟气中的浆液互相撞击几率明显增大，有利于凝并成大粒度浆液，形成的大颗粒浆液受离心力作用甩向外圆筒内壁，在内壁形成外圆筒水膜，同时受惯性力作用在螺旋叶片表面也形成水膜，水膜再进一步吸收不断撞击的浆液中粉尘，顺内壁及螺旋体表面流入浆液池，螺旋叶片上沿圆周方向设置有径向孔，这些孔形成水膜，烟气在上升过程中，一部分粉尘及浆液势必会冲击水膜孔，并在水膜孔被阻挡、吸收，然后形成下一个水膜，周而复始，完成高效除雾除尘功能。另外，螺旋叶片的叶片上设置的径向孔，通过这些孔的轴向气流与螺旋气流产生紊流，宜于促进液滴、灰尘等细微颗粒物的凝并，也有利于提高除尘除雾效率。 The working principle of the high-efficiency multi-tube spiral demist and dust removal device of the present invention is: the flue gas containing desulfurization slurry and dust enters from the lower part of the demist and dust removal assembly, and due to the diversion effect of the spiral blades, the flue gas changes continuously during the high-speed flow The flow direction is spiral upward, and the probability of the slurry in the flue gas colliding with each other is significantly increased, which is conducive to coagulation and formation of large-grained slurry. The formed large-grained slurry is thrown to the inner wall of the outer cylinder by centrifugal force, forming an outer cylinder water on the inner wall. At the same time, a water film is also formed on the surface of the spiral blade by the inertial force. The water film further absorbs the dust in the slurry that is constantly impacted, and flows into the slurry pool along the inner wall and the surface of the spiral body. Radial holes are arranged on the spiral blade along the circumferential direction. These The holes form a water film, and during the rising process of the flue gas, a part of the dust and slurry will inevitably hit the water film holes, and be blocked and absorbed in the water film holes, and then form the next water film, which goes round and round to complete the efficient demist and dust removal function. In addition, the radial holes provided on the blades of the helical blades, the axial airflow through these holes and the helical airflow generate turbulence, which is suitable for promoting the condensation of fine particles such as liquid droplets and dust, and is also conducive to improving the efficiency of dust removal and mist removal.
本发明高效多管螺旋除雾除尘装置，增加粉尘的碰撞几率，使微细粉尘凝并，有利于去除烟气中的微细粉尘，可高效脱除烟气所携带的浆液滴及气溶胶颗粒物，高效脱除因氨逃逸所形成的硫酸铵等气溶胶颗粒物，并可有效去除烟气中的重金属汞及汞氧化物，除雾除尘效率高，实现烟气超净排放。 The high-efficiency multi-tube spiral demisting and dedusting device of the present invention increases the collision probability of dust, makes the fine dust condense, is beneficial to the removal of fine dust in the flue gas, and can efficiently remove the slurry droplets and aerosol particles carried by the flue gas. It removes aerosol particles such as ammonium sulfate formed by ammonia escape, and can effectively remove heavy metal mercury and mercury oxides in the flue gas. It has high efficiency of fog and dust removal, and realizes ultra-clean emission of flue gas.
综上所述，本发明高效多管螺旋除雾除尘装置，除雾除尘效率高，超净排放。 To sum up, the high-efficiency multi-pipe spiral fog and dust removal device of the present invention has high fog and dust removal efficiency and ultra-clean emission.
附图说明 以下结合附图及其实施例对本发明作更进一步的说明。 BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be further described below in conjunction with the accompanying drawings and embodiments thereof.
图1是本发明的结构示意图； Fig. 1 is a structural representation of the present invention;
图2 为图1中的A-A剖视图。 Fig. 2 is A-A sectional view in Fig. 1.
具体实施方式 在图1中，在图1、图2中，本发明高效多管螺旋除雾除尘装置，包括外壳体1，在高度方向间隔安装在外壳体内部的数个固定支架2，分布在外壳体内部并立式安装在两个固定支架之间的由若干个管状螺旋除雾除尘器构成的除雾除尘组合体3，安装在固定支架上的冲洗系统4。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In Fig. 1, in Fig. 1 and Fig. 2, the high-efficiency multi-tube spiral demist and dust removal device of the present invention includes an outer shell 1, several fixed brackets 2 installed at intervals in the height direction inside the outer shell, distributed in Inside the outer casing, a fog and dust removal assembly 3 composed of several tubular spiral fog and dust collectors is vertically installed between two fixed brackets, and a flushing system 4 is installed on the fixed brackets.
本发明高效多管螺旋除雾除尘装置，所说的若干个管状螺旋除雾除尘器，每个管状螺旋除雾除尘器包括安装在固定支架上的外圆筒5、螺旋轴6，位于外圆筒内并安装在螺旋轴上的螺旋叶片7。 The high-efficiency multi-tube spiral demist and dust removal device of the present invention, said several tubular spiral demist and dust removers, each tubular spiral demist and dust remover includes an outer cylinder 5 and a spiral shaft 6 installed on a fixed bracket, and is located on the outer circle. The helical blade 7 inside the barrel and installed on the helical shaft.
本发明高效多管螺旋除雾除尘装置，所述的螺旋叶片，其上设置有若干个径向孔a。 In the high-efficiency multi-tube spiral fog and dust removal device of the present invention, the spiral blade is provided with several radial holes a.
本发明高效多管螺旋除雾除尘装置，所说的螺旋叶片，可以采用单头结构，也可以采用多头结构。 In the high-efficiency multi-pipe spiral fog and dust removal device of the present invention, the spiral blades can adopt a single-head structure or a multi-head structure.
本发明高效多管螺旋除雾除尘装置，所说的除雾除尘组合体，根据烟气排放及阻力要求，在外壳体内部可以单层布置，也可以多层布置。 The high-efficiency multi-tube spiral demist and dust removal device of the present invention, the said demist and dust removal assembly, can be arranged in a single layer or in multiple layers inside the outer casing according to the requirements of smoke emission and resistance.
本发明高效多管螺旋除雾除尘装置，在每层除雾除尘组合体上下位置均设置冲洗系统。 The high-efficiency multi-tube spiral demist and dust removal device of the present invention is equipped with a flushing system at the upper and lower positions of each layer of the demist and dust removal assembly.
此外，图中，进烟气侧b，出烟气侧c。 In addition, in the figure, the gas inlet side b and the gas outlet side c.
Claims (8)
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| CN201520073469.8U CN204469408U (en) | 2015-02-03 | 2015-02-03 | High-efficient multi-pipe spiral demist dust arrester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587756A (en) * | 2015-02-03 | 2015-05-06 | 青岛达能环保设备股份有限公司 | Efficient multi-pipe spiral mist removing and dust removing system |
| CN106345185A (en) * | 2016-08-25 | 2017-01-25 | 山东应天节能环保科技有限公司 | inverted-pyramid-shaped tube bundle demister |
| CN113546475A (en) * | 2021-08-31 | 2021-10-26 | 北京清新环境技术股份有限公司 | A vortex grille dust removal and demisting device and absorption tower |
-
2015
- 2015-02-03 CN CN201520073469.8U patent/CN204469408U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587756A (en) * | 2015-02-03 | 2015-05-06 | 青岛达能环保设备股份有限公司 | Efficient multi-pipe spiral mist removing and dust removing system |
| CN106345185A (en) * | 2016-08-25 | 2017-01-25 | 山东应天节能环保科技有限公司 | inverted-pyramid-shaped tube bundle demister |
| CN113546475A (en) * | 2021-08-31 | 2021-10-26 | 北京清新环境技术股份有限公司 | A vortex grille dust removal and demisting device and absorption tower |
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