CN106179741A - 复合式管束电除雾器 - Google Patents
复合式管束电除雾器 Download PDFInfo
- Publication number
- CN106179741A CN106179741A CN201610555799.XA CN201610555799A CN106179741A CN 106179741 A CN106179741 A CN 106179741A CN 201610555799 A CN201610555799 A CN 201610555799A CN 106179741 A CN106179741 A CN 106179741A
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- CN
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- Prior art keywords
- water pipe
- cathode line
- demister
- anode tube
- composite type
- 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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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 239000011901 water Substances 0.000 claims abstract description 39
- 239000010410 layers Substances 0.000 claims abstract description 22
- 239000003595 mist Substances 0.000 claims abstract description 19
- 238000010521 absorption reactions Methods 0.000 claims abstract description 18
- 239000000203 mixtures Substances 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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- 239000007787 solids Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound 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[S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste materials Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
Abstract
本发明提供一种复合式管束电除雾器，旋流系统、静电吸附系统、反冲洗系统、带电板式除雾层在壳体内由下至上依次排列，旋流系统由外套桶、管束和旋流子组成，管束内安装旋流子，管束外侧设有外套桶，静电吸附系统由阴极线、阳极管、阴极线固定件、大小梁组成，大小梁上吊装阴极线，阴极线下端由阴极线固定件固定，支撑阳极管安装在阴极线固定件与大小梁之间，反冲洗系统由水管支撑梁、反冲洗水管、喷嘴组成，水管支撑梁上安装反冲洗水管，反冲洗水管安装喷嘴，带电板式除雾层包括除雾器和支撑梁，除雾器平铺于支撑梁上，它结构合理，无需人工操作，经过三层净化后此设备出口处净烟气含尘量能达到3mg/m3。
Description
技术领域
[0001] 本发明涉及大气污染控制设备领域，尤其涉及一种复合式管束电除雾器。
背景技术
[0002] 目前，锅炉烟气处理多为:脱销+初步除尘+脱硫+深度净化工艺，成熟的脱硫工艺 为湿法脱硫，脱硫后的烟气中包含大量的液滴以及少量脱硫剂，需要进一步作除雾处理。现 在的除雾设备多为传统的机械式除雾器，包括平板式除雾器、丝网式除雾器、管式除雾器、 管束式除雾器，这些机械式除雾器只能去除较大粒径的雾滴，不能有效去除粉尘颗粒，蓝 烟、黄烟、石膏雨现象严重，达不到新的锅炉大气污染物排放标准的要求。
发明内容
[0003] 为了克服现有技术的问题，本发明提供一种复合式管束电除雾器，它结构合理，运 行时打开电源，系统自动开始对烟气进行脱硫除尘，内部系统有自动化控制系统，周期性的 进行冲洗，无需人工操作。烟气从设备底端进入依次进入旋流系统、静电吸附系统、带电板 式电除雾系统，经过三层净化后此设备出口处净烟气含尘量能达到3mg/m 3。
[0004] 本发明的技术方案是:提供一种复合式管束电除雾器，它是由旋流系统、静电吸附 系统、反冲洗系统、带电板式除雾层和壳体组成，旋流系统、静电吸附系统、反冲洗系统、带 电板式除雾层在壳体内由下至上依次排列，旋流系统由外套桶、管束和旋流子组成，管束内 安装旋流子，管束外侧设有外套桶，静电吸附系统由阴极线、阳极管、阴极线固定件、大小梁 组成，大小梁上吊装阴极线，阴极线下端由阴极线固定件固定，支撑阳极管安装在阴极线固 定件与大小梁之间，反冲洗系统由水管支撑梁、反冲洗水管、喷嘴组成，水管支撑梁上安装 反冲洗水管，反冲洗水管安装喷嘴，带电板式除雾层包括除雾器和支撑梁，除雾器平铺于支 撑梁上。
[0005] 优选的，烟气处理方法，烟气自下而上进入复合式管束电除雾区域，烟气首先进入 管束内，经两层旋流子的旋流作用初步出去烟气中的大颗粒物，初步净化后的烟气继续向 上进入静电吸附系统，电场中阴极线释放电子使烟气中的粉尘粒子带负电荷，阳极管带正 电，在电场力的作用下粉尘粒子向阳极管移动，最终被吸附在阳极管内壁，净烟气自上而下 进入除雾器，除雾器是由新型导电复合材料制作的模块带正电荷，净烟气中被电离的粉尘 粒子进入除雾器再次被吸附截留，使最终出口的净烟气含尘量<3mg/m 3,被吸附在阳极管 和除雾器上的粉尘粒子，可通过反冲洗水管和喷嘴清水冲洗，采用间歇式冲洗，冲洗时间和 周期可根据工况条件和吸收塔水平衡调控。
[0006] 优选的，阴极线可采用双向钢、钛合金、铅锑合金材质制作，根据不同的工况环境 选择材质。
[0007] 优选的，阳极管管束组由内切圆036O/035O/033Q/正六边形阳极管采用先进的 层压粘接工艺复合成型，阳极管管束组加工为蜂窝型，内表面含有碳纤维及阻燃剂的耐磨 阻燃导电层。
[0008] 优选的，反冲洗水管为FRPP材质，通过电磁阀控制，间歇性冲洗，反冲洗水管管径 按1.25~2.8/s的液体流速设计，为2m/s左右，以降低从一个冲洗联箱端口到另一个端口的 阻力损失。
[0009] 优选的，外套桶与阳极管材质相同，外套桶与阳极管均为圆形，外套桶外径大小为 阳极管内切圆直径，外套桶与阳极管下端无缝链接。
[0010] 优选的，除雾器为新型导点复合型材料，带正电荷。
[0011] 本发明的有益效果是：阴极线和阳极管之间形成电场，烟气粉尘、雾滴在电场作用 下发生电离而携带负电荷，负电离子在电场作用下逐向阳极管靠近被阳极管捕捉。在通电 状态下，上部板试电除雾层中的除雾器带电，在其发挥机械式除雾器固有除雾功能的基础 上增加对雾滴、微粒的吸附功能，除雾效果明显增强。
附图说明
[0012] 下面根据图进一步对本发明加以说明：
[0013] 图1是本发明的结构图；
[0014] 图2是本发明管束与阳极管连接的结构图；
[0015] 图3是本发明水管支撑梁的结构图；
[0016] 图4是本发明反冲洗水管的布置结构图；
[0017] 图5是本发明除雾器的布置结构图；
[0018] 图6是本发明图1的A-A结构图；
[0019] 图1、图2、图3、图4、图5、图6中所示：1、阴极线，2、阳极管，3、反冲洗水管，4、除雾 器，5、喷嘴，6、水管支撑梁，7、壳体，8、阴极线固定件，9、大小梁，10、管束，11、旋流子，12、外 套桶，13、支撑梁。
具体实施方式
[0020] 下面结合图对本发明作进一步详细的说明，需要说明的是，图仅用于解释本发明， 是对本发明实施例的示意性说明，而不能理解为对本发明的限定。
[0021] 如图1、图2、图3、图4、图5、图6所示，复合式管束电除雾器，它是由旋流系统、静电 吸附系统、反冲洗系统、带电板式除雾层和壳体7组成，旋流系统、静电吸附系统、反冲洗系 统、带电板式除雾层在壳体7内由下至上依次排列，旋流系统由外套桶12、管束10和旋流子 11组成，管束10内安装旋流子11，管束10外侧设有外套桶12,静电吸附系统由阴极线1、阳极 管2、阴极线固定件8、大小梁9组成，大小梁9上吊装阴极线1，阴极线1下端由阴极线固定件8 固定，支撑阳极管2安装在阴极线固定件8与大小梁9之间，反冲洗系统由水管支撑梁6、反冲 洗水管3、喷嘴5组成，水管支撑梁6上安装反冲洗水管3，反冲洗水管3安装喷嘴5，带电板式 除雾层包括除雾器4和支撑梁13,除雾器4平铺于支撑梁13上。
[0022]优选的，烟气处理方法，烟气自下而上进入复合式管束电除雾区域，烟气首先进入 管束10内，经两层旋流子11的旋流作用初步出去烟气中的大颗粒物，初步净化后的烟气继 续向上进入静电吸附系统，电场中阴极线1释放电子使烟气中的粉尘粒子带负电荷，阳极管 2带正电，在电场力的作用下粉尘粒子向阳极管2移动，最终被吸附在阳极管2内壁，净烟气 自上而下进入除雾器4,除雾器4是由新型导电复合材料制作的模块带正电荷，净烟气中被 电离的粉尘粒子进入除雾器4再次被吸附截留，使最终出口的净烟气含尘量<3mg/m3,被吸 附在阳极管2和除雾器4上的粉尘粒子，可通过反冲洗水管3和喷嘴5清水冲洗，采用间歇式 冲洗，冲洗时间和周期可根据工况条件和吸收塔水平衡调控。
[0023]优选的，阴极线1可采用双向钢、钛合金、铅锑合金材质制作，根据不同的工况环境 选择材质。
[0024] 优选的，阳极管2管束组由内切圆0360/0350/0330/正六边形阳极管2采用先进 的层压粘接工艺复合成型，阳极管2管束组加工为蜂窝型，内表面含有碳纤维及阻燃剂的耐 磨阻燃导电层。
[0025]优选的，反冲洗水管3为FRPP材质，通过电磁阀控制，间歇性冲洗，反冲洗水管3管 径按1.25~2.8/s的液体流速设计，为2m/s左右，以降低从一个冲洗联箱端口到另一个端口 的阻力损失。
[0026]优选的，外套桶12与阳极管2材质相同，外套桶12与阳极管2均为圆形，外套桶12外 径大小为阳极管2内切圆直径，外套桶12与阳极管2下端无缝链接。
[0027]优选的，除雾器4为新型导点复合型材料，带正电荷。
[0028]通电后，阴极线1和阳极管2之间形成电场，烟气粉尘、雾滴在电场作用下发生电离 而携带负电荷，负电离子在电场作用下逐向阳极管2靠近被阳极管2捕捉。在通电状态下，上 部板试电除雾层中的除雾器4带电，在其发挥机械式除雾器4固有除雾功能的基础上增加对 雾滴、微粒的吸附功能，除雾效果明显增强。
[0029]以100t/h锅炉除尘脱硫项目为例，从以下几方面将布袋除尘器与该设备进行比 较：
[0030] (1)粉尘排放量:锅炉烟气排放量为260000m3/h，粉尘含量按200mg/m3计算，则每小 时粉尘排放量为52Kg，而安装复合式管束电除雾后，预计在进入吸收塔之前烟气的粉尘含 量仅为3mg/m3，每小时排入空气中的粉尘不到0.6Kg。
[0031] (2)节能指标:安装布袋除尘器的项目，风机功率一般在450KW左右，按满负荷运转 计算，平均日耗电在450度左右，安装复合式管束电除雾的项目，风机功率一般在300KW左 右，平均日耗电300度左右，年节约用电约5.84万度。
[0032] (3)安装及运行维护方面:相对于传统除尘器，复合式管束电除雾模块体积小，拆 装方便，维护方便。布袋除尘器滤袋维护或更换时，滤仓必须停机，且普通滤袋的价格每条 在300-400元之间，平均使用两年后就要更换，设备运行维护费用大大增高。在项目工况稳 定时，复合式管束电除雾器部件正常使用寿命在5-10年，且部件造价相对较低，设备运行维 护费用低。
[0033] 综合分析，在项目投资方面，复合式管束电除雾无论是设备本身还是配套设施，以 及项目后期的运行维护，其经济指标均优于传统除尘器;复合式管束电除雾器对项目环境 及风机选型无特殊严格要求;在节能环保方面，产生废弃部件少，节约电能，经过复合式管 束电除雾器处理的烟气排放达到并远远高于国家标准。
[0034] 本发明结构合理，复合式管束电除雾设备进烟口接烟气出口，运行时打开电源，系 统自动开始对烟气进行脱硫除尘，内部系统有自动化控制系统，周期性的进行冲洗，无需人 工操作。烟气从设备底端进入依次进入旋流系统、静电吸附系统、带电板式电除雾系统，经 过三层净化后此设备出口处净烟气含尘量能达到3mg/m 3。
[0035]以上所述为本发明的实施例，并不用于限制本发明，对于本领域的技术人员来说， 本发明可以有各种改进和变化。凡在本发明的精神和原则之内所作的任何修改、等同替换、 改进等均应含在本发明的权利要求范围之内。
Claims (7)
1. 复合式管束电除雾器，它是由旋流系统、静电吸附系统、反冲洗系统、带电板式除雾 层和壳体(7)组成，其特征在于:旋流系统、静电吸附系统、反冲洗系统、带电板式除雾层在 壳体(7)内由下至上依次排列，旋流系统由外套桶（12)、管束（10)和旋流子（11)组成，管束 (1〇)内安装旋流子（11)，管束（10)外侧设有外套桶（12)，静电吸附系统由阴极线（1)、阳极 管（2)、阴极线固定件(8)、大小梁(9)组成，大小梁(9)上吊装阴极线（1)，阴极线（1)下端由 阴极线固定件(8)固定，支撑阳极管(2)安装在阴极线固定件(8)与大小梁(9)之间，反冲洗 系统由水管支撑梁(6)、反冲洗水管(3)、喷嘴(5)组成，水管支撑梁(6)上安装反冲洗水管 (3) ，反冲洗水管(3)安装喷嘴(5)，带电板式除雾层包括除雾器(4)和支撑梁（13)，除雾器 (4) 平铺于支撑梁(13)上。
2. 根据权利要求1所述复合式管束电除雾器，其烟气处理方法，其特征在于:烟气自下 而上进入复合式管束电除雾区域，烟气首先进入管束（10)内，经两层旋流子(11)的旋流作 用初步出去烟气中的大颗粒物，初步净化后的烟气继续向上进入静电吸附系统，电场中阴 极线（1)释放电子使烟气中的粉尘粒子带负电荷，阳极管(2)带正电，在电场力的作用下粉 尘粒子向阳极管(2)移动，最终被吸附在阳极管(2)内壁，净烟气自上而下进入除雾器(4)， 除雾器(4)是由新型导电复合材料制作的模块带正电荷，净烟气中被电离的粉尘粒子进入 除雾器(4)再次被吸附截留，使最终出口的净烟气含尘量<3mg/m 3,被吸附在阳极管(2)和 除雾器(4)上的粉尘粒子，可通过反冲洗水管(3)和喷嘴(5)清水冲洗，采用间歇式冲洗，冲 洗时间和周期可根据工况条件和吸收塔水平衡调控。
3. 根据权利要求1与2所述复合式管束电除雾器，其特征在于：阴极线（1)可采用双向 钢、钛合金、铅铺合金材质制作，根据不同的工况环境选择材质。
4. 根据权利要求1与2所述复合式管束电除雾器，其特征在于：阳极管(2)管束组由内切 圆賴_講35_03测征六边形阳极管⑵采用先进的层压粘接工艺复合成型，阳极管⑵ 管束组加工为蜂窝型，内表面含有碳纤维及阻燃剂的耐磨阻燃导电层。
5. 根据权利要求1与2所述复合式管束电除雾器，其特征在于:反冲洗水管(3)为FRPP材 质，通过电磁阀控制，间歇性冲洗，反冲洗水管(3)管径按1.25~2.8/s的液体流速设计，为 2m/s左右，以降低从一个冲洗联箱端口到另一个端口的阻力损失。
6. 根据权利要求1与2所述复合式管束电除雾器，其特征在于:外套桶（12)与阳极管(2) 材质相同，外套桶（12)与阳极管(2)均为圆形，外套桶（12)外径大小为阳极管(2)内切圆直 径，外套桶（12)与阳极管(2)下端无缝链接。
7. 根据权利要求1与2所述复合式管束电除雾器，其特征在于:除雾器(4)为新型导点复 合型材料，带正电荷。
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