燃煤电厂污染物的控制课件.ppt
《燃煤电厂污染物的控制课件.ppt》由会员分享,可在线阅读,更多相关《燃煤电厂污染物的控制课件.ppt(45页珍藏版)》请在三一办公上搜索。
1、电力规划设计总院Electric Power Planning&Engineering Institute,Pollutant Control in Chinas Coal-fired Power Generation Industry中国燃煤电厂污染物控制技术及应用,2015 年 1 月 山东省济南市Jan,2015Jinan,Shandong,China,内容 Contents,Pollutant emission control technologies for coal-fired power plants,超低排放典型工程,Typical Super low emission pro
2、jects,内容 Contents,Pollutant emission control technologies for coal-fired power plants,超低排放典型工程,Typical Super low emission projects,4,2003-2013年中国电力装机容量的变化Trend of Chinas total installed power generation capacity,2003-2013,中国电力行业总体概况Overview of Chinas power generation industry,5,中国发电装机容量的预测Forecast o
3、f Chinas installed power generation capacity,中国电力行业总体概况Overview of Chinas power generation industry,6,中国一次能源的结构特征决定了火电在中国仍占很大比重The energy structure determines fossil-fuel power plants still plays the dominant role in Chinas power generation industry.,2013年全国装机构成,总装机124738万千瓦Installed power structure
4、 at 2013total capacity 1247GW,预计2020年全国装机构成,总装机204000万千瓦Predicted Installed power structure at 2020total capacity 2040GW,中国电力行业总体概况Overview of Chinas power generation industry,内容 Contents,Pollutant emission control technologies for coal-fired power plants,超低排放典型工程,Typical Super low emission projects
5、,8,2013年,我国灰霾面积最高达143万平方公里,波及15%国土面积;全国平均灰霾日数35.9天,部分地区超过100天。,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,2013年全国霾日数分布示意图Haze day number distribution around China,2013,In Year 2013,the total area influenced by haze was up to 1,430,000 km2,occupied 15%of China.
6、The average haze day was 35.9,some regions even exceeded 100,9,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,2013年全国主要城市霾日数统计Total number of haze day in major cities,2013,10,研究表明,我国大气污染主要为煤烟型污染和机动车尾气污染的大气复合污染,燃煤污染为主;Research shows that air pollution in China is m
7、ainly the combination of coal gas and automobile emission,primarily coal gas.2012年,我国火电行业排放二氧化硫883万吨、氮氧化物948万吨、烟尘151万吨,分别占全国总排放量的41.7%、40.6%、12.2%。In 2012,the total emission from coal-fired industry is SO2 883104t,NOx 948104t,dust 151104t.That is 41.7%,40.6%,12.2%of the total pollutant emission,resp
8、ectively.,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,2012年火电和其它主要用能行业耗煤和污染物排放占全国比例Percentage of emission from coal-fired industry and other industries,2012,11,火电厂大气污染物排放标准GB13223-1996,该标准自1997年1月1日起实施;The“Pollutant emission standard”(GB13223-1996)was executed
9、on Jan 1st,1997.火电厂大气污染物排放标准GB13223-2003,该标准自2004年1月1日起实施,废止GB13223-1996标准;The“Pollutant emission standard”(GB13223-2003)was executed on Jan 1st,2004.火电厂大气污染物排放标准GB13223-2011,该标准自2012年1月1日起实施,废止GB13223-2003标准。The“Pollutant emission standard”(GB13223-2011)was executed on Jan 1st,2012.,中国环保现状及相关政策法规Th
10、e status of Chinas environmental protection&Relevant policies&rules,火电环保排放标准演变Development of emission standard in coal-fired industry,12,2011年7月29日,中国发布火电厂大气污染物排放标准(GB13223-2011)On July 29 2011,the“Pollutant emission standard”(GB13223-2011)has been published,and as a result,the pollutant emission de
11、crease tremendously.,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,13,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,),大幅降低了氮氧化物、二氧化硫和烟尘的排放限值;针对重点地区制定了更加严格的大气污染物特别排放限值,并增设了汞 的排放限值;The emission limits of NOx、SO2 and dust are sig
12、nificant reduced;the more restrictive emission standard was issued for crucial region,the emission standard for Hg was also issued;限值设置科学合理具有可操作性,新标准中的每一个控制限值均有对应的成熟、可靠的控制技术;The setting of the limiting values is scientific and reasonable,for each emission limit in new standard,there are suitable con
13、trol technologies which are mature and reliable.充分考虑了我国发展的阶段性特征和基本国情。The current features of development and the basic national conditions in China have been given adequateconsideration,重点区域排放标准(GB13223-2011)Emission criteria in crucial region(GB13223-2011),14,中国环保现状及相关政策法规The status of Chinas envir
14、onmental protection&Relevant policies&rules,15,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,16,中国环保现状及相关政策法规The status of Chinas environmental protection&Relevant policies&rules,内容 Contents,Pollutant emission control technologies for coal-fired power plants,超低排放
15、典型工程,Typical Super low emission projects,18,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,19,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,采用烟气全颗粒物捕捉技术(二级除尘)Overall particles capture technology(double-stage dust removal)
16、第一级除尘,选用适用的干式除尘器 first-stage dust removal,dry-type precipitator,第二级除尘,选用湿式静电除尘器 second-stage dust removal,wet electrostatic precipitator(WESP),20,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,采用烟气全颗粒物捕捉技术(二级除尘)Overall particles capture technology(double-stage
17、dust removal)第一级除尘,适用的干式除尘器 first-stage dust removal,dry-type precipitator.,五电场静电除尘器(包括旋转电极、高频电源);five-field ESP(including rotating electrode)布袋除尘器和电袋除尘器 baghouse precipitator and bag-electro static precipitator 静电除尘器同时结合低温省煤器方案以达到更高的除尘效率(即低低温除尘器技术),除尘效率 removal efficiency:99%采用低低温除尘器技术 lower-lower-
18、temperature ESP 除尘器出口含尘浓度 ESP outlet Concentration 20 mg/Nm3,21,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,第一级除尘:低低温除尘技术 first-stage dust removal:lower-lower-temperature ESP.,除尘效率/removal efficiency:99.95%,除尘器出口含尘浓度/ESP outlet Concentration15 mg/Nm3,22,中国燃煤
19、电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,第二级除尘,选用湿式静电除尘器 second-stage dust removal 置于脱硫塔出口;有效地除去烟气中的SO3、石膏和PM2.5等污染物微小 颗粒,脱除效 率约70%;可使WESP出口的含尘量不高于5 mg/Nm3。,effectively remove micro particles of pollutants such as SO3,plaster particle,and PM2.5.The removal ef
20、ficiency is about 70%.The dust emission at the outlet of WESP will be less than 5 mg/Nm3.,23,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,第二级除尘,湿式静电除尘器(引进技术)second-stage dust removal 特点:烟气采用水平流向,除尘器采用卧式;feature:Flue gas flow is in horizontal direction,Horizon
21、tal electrostatic precipitator 极板形式为板式,极板材料采用316L;polar plate,plate material is 316L;采用连续喷淋,在极板上形成均匀的水膜;Continuous spray,water films formed on the plate 采用闭式的水循环系统,同时设置一套化学加碱系统。Closedwater cycle system,Alkaline system is added,引进日立工业设备技术公司-代表性生产厂 浙江南源环境工程有限公司 投产业绩:浙江六横电厂21000MW 机组;嘉兴电厂三期21000MW 机组等。
22、以国华舟山电厂1350MW 机组为例,2014 年6 月25 日投产,性能测试湿式除尘器出口的粉尘排放数据为2.55 mg/Nm3。,引进日本三菱公司技术-代表性生产厂 菲达环保科技股份有限公司 投产业绩:浙能台州第二发电厂21000MW 机组合同业绩;上海漕泾电厂#2 机组(1000MW)合同业绩;国华舟山电厂1350MW 机组的投产业绩。,24,中国燃煤电厂污染物的控制技术及其应用Pollutant emission control technologies for coal-fired power plants,第二级除尘,湿式静电除尘器(自主技术)second-stage dust r
23、emoval 特点:烟气采用垂直流向,至上而下,除尘器采用立式;feature:Flue gas flow is in vertical direction,vertical electrostatic precipitator 极板形式为管式,极板材料采用柔性纤维;Tubularplates,the plate material is flexible fiber;正常运行时无需连续水喷淋,可停机冲洗;Continuous water spray is not necessary during the normal operation 无需一套化学加碱系统。Alkaline system i
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 燃煤 电厂 污染物 控制 课件
链接地址:https://www.31ppt.com/p-3621778.html