湿式电除尘器的作用及发展现状
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<p class="solve-info">登陆阿里云官网->管理控制台-><a href="https://netcn.console.aliyun.com/core/host/list2?spm=5176.8048640.1002.1.6ALO62" target="_blank" class="golink">云虚拟主机</a>，在我的主机中找到要进行流量充值的主机，点击“管理”进入该主机管理界面点击“流量购买”链接，进行流量充值，补足流量后即可开通。</p>
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随着国家环保政策和标准的不断升级，湿式电除尘器将成为实现烟气排放标准的有效净化装置。
湿式电除尘器对酸雾、有毒重金属和PM10有很好的去除效果，尤其是PM2.5细粉尘，可以解决湿法脱硫后的石膏雨和蓝烟问题。它能有效捕获细颗粒物（由PM2.5和SO3酸雾形成的气溶胶）、重金属（汞、砷、硒、铅、铬）、有机物（多环芳烃、二恶英）等。烟气排放可达10mg/nm³甚至5mg/nm³以下，达到超低排放，天然气锅炉和燃气轮机机组的烟气排放标准（《火力发电厂大气污染物排放标准》GB 13223-2011）。
湿式电除尘器已在我国冶金和化工行业使用了很长时间，特别是在化工行业甚至作为生产设备，其技术已经成熟，但在电力行业的锅炉烟气处理尚处于起步阶段。随着《环境空气细颗粒物污染综合防治技术政策》出台，湿式电除尘器似乎成了空气污染控制的“宠儿”，业界也做出了一些“大动作”:一些企业率先迅速引进日本、美国、欧盟等国外技术；一些企业在基础测试的基础上，组织专业团队及时进行行业测试。截至目前，已有5-6家企业引进了国外技术，3-4家企业系统地进行了湿式电除尘器（WESP）测试，获得了完整的技术数据，近30家企业参与投标。从这些数据可以看出，半数以上的企业已经投入战斗，基本准备还不够充分。即使引进技术的企业已经很好地吸收和消化了它，自主开发是否积累了关键数据和经验还有待验证。
虽然湿式电除尘器（WESP）技术在业内并不陌生，但要想得体到位，仍需要时间总结和积累经验。特别是，我们现在参考湿式电除尘器（WESP），其安装在湿式脱硫塔之后，用于处理含有大量由SO3蒸汽和水形成的浆液液滴和气溶胶的烟气。由于对控制微粒和酸雾的要求越来越高，WESP已经成为一个更好的选择。WESP净化对象为饱和水蒸气，烟气温度约50℃，粉尘浓度低，技术难度相对较低。如果我们掌握了它的基本规律并充分发挥它的潜力，我们就能在控制微粒方面表现出良好的性价比。
湿式电除尘器可作为快速除尘的末端精处理设备，具有控制复合污染物的强大功能，可处理烟气中细小、粘稠或高比电阻的粉尘和酸雾、气溶胶、汞、重金属和二恶英，收集效果是理想的。因此，加强湿式静电除尘技术的研究、应用和推广是有必要的。
