5静电除尘器.docx

1、5静电除尘器GNPower Mariveles Coal Plant输煤运行手册系统分册Material Handling System Operation Manual第1卷05号No.05 of Volume 1 Owner: GNPower Mariveles Coal Plant Ltd.CoPrepared by: CNEEC2012.02.20项目名称Project NameMariveles 项目2x300MW电厂项目Mariveles 2x300MW Power Plant Project文件编号File Number合同号Contract No.输煤手册输静电除尘系统ESP

2、Part of Material Handling Operation Manual 陕西西北发电运行集团有限责任公司SHAANXI NORTHWEST POWER GENERATION CO., LTD编制人Compiledby初审人InitialChecked by日期Date审核人Checked by日期Date翻译人Translatedby日期Date第一版First edition郭景彦Guojingyan孟佳Mengjia第二版Second edition最终提交版批准人Final edition approved by版本Edition 目录Table of Contents1

3、引用的规范及设计标准： 41 Reference Specifications & Design Standards 42 静电除尘器 52 ESP 52.1 简介 52.1 Overview 52.1.1 除尘器原理与结构 52.1.1 ESP principle and structure 52.1.2 除尘器设备规范 ESP 82.1.2 specification 82.1.3 运行参数 102.1.3 Operational parameters 102.2 运行防范措施和局限性 112.2 Precautionary Measures and Limitations in Oper

4、ation 112.3 运行要求 132.3 Operating Requirements 132.4 启动顺序 152.4 Startup Sequence 152.5 正常运行 202.5 Normal Operation 202.5.1 就地监视 202.5.1 Local Monitoring 202.5.2 (PLC监视) 222.5.2 (PLC monitoring) 222.5.3 系统监视 232.5.3 Systematic Inspection 232.5.4 定期运行 242.5.4 Periodic Operations 242.6 停止步骤 252.6 Shutdo

5、wn Procedures 252.7 特别步骤 272.7 Special Procedures 272.8 使用故障 642.8 Faults in Using 642.9 报警反应步骤 752.9 Alarm Response Procedure 751 引用的规范及设计标准：1 Reference Specifications & Design Standards (1) 中华人民共和国电力行业标准 DL/T 5142004(1) Industrial Standards for Electric Power of PRC DL/T 5142004(2) 中华人民共和国机械行业标准 J

6、B/T 8625-2008 (2) National Standard for Machinery Industry of PRC JB/T 8625-2008 (3) 燃煤电厂电除尘器 DL/T514(3) ESP of Coal-fired Power Plant DL/T514(4) 火电厂大气污染物排放标准 GB13223(4) Air Pollutant Discharge Standards for Coal-fired Power Plant GB13223(5) 电力工业安全规程(5) Safety code for Electric Power Industries(6) 电

7、气除尘器操作维护说明书(6) ESP Operation and Maintenance Manual(7) 除灰系统设计技术规范(7) Ash handling System Design Standard(8) DL/T 461-2004 燃煤电厂电除尘器运行维护导则(8) DL/T 461-2004 guide for coal fired power plant ESP operation and maintenance 2 静电除尘器2 ESP2.1 简介2.1 Overview DCY型系列高压静电除尘器是新型高效除尘装置，是一种抑制局部和分散扬尘点粉尘的飞扬，使含尘空气就地净化，

8、消除污染，保护环境，回收有用物料，发展综合利用的先进设备。该设备主要用于火力发电厂粮饲加工冶金矿山铸造化工水泥厂以及其它各类粉尘扬尘点的除尘。适用于无导电尘埃和无腐蚀性气体，无爆炸危险的含尘气体的除尘。DCY型系列小型高压静电除雾除尘器采用了如大功率恒流脉冲电源单电源变电子发射技术等一系列高精尖技术，具有除尘效率高，稳定性好耗电省阴极免震打维护少抗结露噪声小连续稳定运行等优点，相对布袋除尘器经常需要更换布袋，维护工作量大以及水浴除尘器设施庞大煤尘回收麻烦来说，本装置具有显著的优点。 DCY series high-voltage electrostatic precipitator is a

9、new efficient dust removal device developed by our company. It is also a kind of advanced equipment to inhibit flying dust at locally dispersed dust-generating points, to locally purify dusty air, to eliminate pollution, to protect the environment, to retrieve useful materials and to develop compreh

10、ensive utilization. This equipment is mainly used for dust removal at various dust-generating points such as thermal power plants, grain and feed processing, metallurgy, mines, casting, chemical industry and cement works. It is applicable to dust removal for dusty air without conductive dust, corros

11、ive gas and explosion risk. DCY series small-size high voltage electrostatic demister and precipitator adopts a series of advanced technologies like large-power constant-current pulse power supply, single power supply variable electron emitting technology. It features high dust removal efficiency, w

12、ell stability, low power consumption, rapping-free cathode, less maintenance, anti-dewing, low noise level as well as continuous and stable operation. This device has striking advantages, compared with bag-type dust removers where bags often needed to be replaced and workload on maintenance is large

13、 and with water bath deduster where the facility is large and it is inconvenient to retrieve coal dust. 2.1.1 除尘器原理与结构 2.1.1 ESP principle and structure A原理 A Principle(1)DCY系列小型高压静电除尘器的控制由控制箱，整流器之间电压电流反馈系统构成闭环自动调节系统，调节系统直接控制除尘器对粉尘的自动请求除尘处理。(1)DCY series small-size high voltage electrostatic precipi

14、tator is controlled by a closed-loop automatic regulation system composed of control box and voltage or current feedback system between rectifiers. This regulation system can directly control automatic dust removal by the ESP. (2)硅高压整流器的作用是将输入可控电压进行升压整流，向电场输送直流高压。(2)Silicon high-voltage rectifier is

15、 mainly used to increase and rectify the input controllable voltage and then transmits high DC voltage to the electric field. (3)除尘器本体为立式蜂窝方管道结构，多个并列的方管道为收尘极，方管道中心为电晕线在电除尘器本体的阳极板(收尘极)和阴极线(电晕线)间施加负高压直流电压时，便在阳极板和阴极线间产生一种不均匀高压电场，当施加电压足够时，阴极线附近产生电晕放电，形成大量的电子和正负离子，当含尘烟气通过电场时，粉尘吸附离子或电子而荷电，荷电粉尘在电场力作用下，向异极移

16、动，到达收尘极板(阳极板)的粉尘在电场力和粉尘粘力的作用下沉积在其上面，并向极板释放其电荷，收尘极板上的粉尘达到一定厚度时，通过定时振打阳极板的方式或粉尘堆积后的自重自动剥离落于集灰斗内，经电动液压锁气门自动排出。库顶式电除尘器无集灰斗，其收集粉尘直接落于煤仓内。上述过程不断进行，达到净化烟气的目的。(3)ESP body is vertical cellular structure made of square pipes. Several parallel square pipes form the dust collecting electrode. The center of the

17、square pipe is corona wire. When negative high DC voltage is applied between anode plate (dust collecting electrode)and cathode wire (corona wire)of ESP body, an uneven high-voltage electric field occurs between anode plate and cathode wire. When voltage applied is sufficient, corona discharge occur

18、s near the cathode wire to generate a large amount of electrons and cations and anions. When the dusty gas passes through the electric field, dust is charged due to adsorbing ions or electrons. The charged dust moves to the opposite electrode under the action of electric field force. Dust arriving a

19、t the dust collecting plate (anode plate)deposits on it under the action of electric force and dust cohesive force and releases its charges to the plate. When dust on the dust collecting plate reaches a certain thickness, it will automatically fall into the dust hopper through regular rapping at ano

20、de plate or by its weight after accumulation. Then it will be discharged automatically through electric hydraulic lock valve. Roof type ESP has no dust hopper and collected dust directly falls into the coal bunker. The above processes are repeated consistently to purify the gas. B设备组成 B Equipment co

21、mposition (1)主要设备组成 (1)Composition of main equipment 1)电除尘器本体 1)ESP body 2)电除尘器专用高压电源及控制模块 2)Special high-voltage power supply and control module for ESP 3)振打控制系统 3)Rapping control system (2)辅助设备(智能控制系统) (2)Auxiliary equipment (intelligent control system)智能控制系统是集计算机通讯等新技术研制开发的高科技产品。它适用于电除尘器在线监控和管理，可

22、实现电除尘器的高压硅整流设备低压振打及卸灰等设备的远程控制。本系统适用于电除尘扩展的各个领域，特别是电力行业，是提高电除尘器自动控制水平，达到保效节能运行目的的重要设备。Intelligent control system is a kind of high-tech product developed with new technologies on computer and communication. It is applicable to ESP on-line monitoring and management for and can realize remote control o

23、n high-voltage silicon rectifier, low-voltage rapping device and dust unloading device of ESP. This system is applicable to various extended fields of electrostatic precipitation. Especially, in electric power industry, it is the important equipment to improve automatic control level of ESPs and to

24、realize high efficiency and energy-saving. C.设备使用条件 C.Operation conditions of equipment 1.处理风量：3.3104m3/h；Air flow for handling: 3.3104m3/h; 2.入口粉尘浓度：30 g/m；Dust concentration at inlet: 30 g/m;3.烟气温度：75；Gas temperature: 75;4.接地电阻2；Grounding resistance: 2;5.电除尘器入口粉尘粒径0.3m。Dust size at ESP inlet 0.3m.

25、 D.结构 D.StructureDCY系列电除尘器可分为三种类型：(a)转运站式(立式或卧式)电除尘器，适用于转运站除尘，室外布置，一般采用水冲灰方式清灰；(b)输送带式(折返式或卧式)电除尘器，适用于输煤转运站，特别是煤仓间头部转运站，室内布置，所集粉尘直接落回皮带；(c)库顶式电除尘器，适用于煤仓间原煤斗除尘，所集粉尘直接落在煤仓里。DCY series ESPs can be classified into three types: (a)Transfer station type (vertical or horizontal)ESPs are applicable to dedus

26、ting in transfer station and are outdoors installed and generally adopt water washing method for dust cleaning; (b)Conveying belt type (zigzag-type or horizontal)ESPs are applicable to coal conveying transfer station, especially coal bunker bay head transfer station and are indoors installed and col

27、lected dust directly falls onto the belt; (c)Roof type ESPs are applicable to dedusting in raw coal scuttle of coal bunker bay and collected dust directly falls onto the coal bunker. DCY系列电除尘器本体主要结构包括：阳极系统阴极系统阳极系统振打装置进出风口喇叭气流均布装置高压进线装置壳体集灰斗等。Main structures of DCY series ESP body include: Anode syst

28、em, cathode system, rapping device of anode system, air inlet/outlet horn, air flow uniform distribution device, high-voltage incoming line device, shell and dust hopper. 2.1.2 除尘器设备规范 ESP 2.1.2 specification 序号No.名称 Name单位Unit123451布置位置Location3号(煤仓间头部)转运站 NO.3 Transfer Station of Silo Bay煤仓间煤斗 Sil

29、o Bay Boiler Bucker碎煤机室Coal crusher room2号转运站No. 2 transfer station2号转运站No. 2 transfer station2型号 ModelDCY-42GRDCY-56GRDCY-20RDCY-90GRDCY-12W/33数量 Quantity121114形式 Type折返式Zigzag-type折返式Zigzag-type折返式Zigzag-type折返式Zigzag-type卧式 Horizontal 5涂层颜色 Coating color亮灰色 Light gray亮灰色 Light gray亮灰色 Light gray亮

30、灰色 Light gray亮灰色 Light gray6处理风量 Air flow for handlingm3/h12000150002000025000320007运行重量 Operation weightkg9000110001500016000200008同极间距 Spacing between like electrodesmm2602602602602609气流通道 Air flow channel个 Piece4256809012风道 12 air channels10灰斗数量 Quantity of dust hoppers2222211设计效率 Designed efficiency99.799.799.799.799.712入口浓度 Concentration at inletg/m3202020202013比集尘面积 Specific dust collection aream252.455.9595352.314电场风速 Site wind speedm/s1.10/1.051.10/1.051.10/1.051.10/1.050.90/0.8515处理时间 Handling times5.55.55.55.55.516设备阻力 Equipment resistancePa25025025025025017噪声 Noised