DLT5196-2004火力发电厂烟气脱硫设计技术规程.pdf

'ICS13.020.40P61备案号:J37牙一2004OL中华人民共和国电力行业标准PDL/T5196一2004火力发电厂烟气脱硫设计技术规程Technicalcodefordesigningfluegasdesulfurizationplantsoffossilfuelpowerplants2004-10-20发布2005-04-01实施中华人民共和国国家发展和改革委员会发布 DL/T5196一2004目次前言·.......................................................................III1范围··············。···························‘。···················⋯⋯I2规范性引用文件·········，·，·，················，··················一23一般规定··················.......................................·一34总平面布置···································，··················⋯⋯64.1一般规定···················································⋯⋯64.2总平面布置········。·，·，···········。·························，⋯643竖向布置····‘··‘··甲········“·..····-·.，.，‘’’·⋯⋯74.4交通运输·········································。········⋯⋯84.5管线布置····················································。·⋯95吸收剂制备系统·········，·····。·······。·········。··············，··⋯106烟气及二氧化硫吸收系统···，············-················⋯⋯126.1二氧化硫吸收系统······，············.................·⋯⋯126.2烟气系统···················································⋯⋯137副产物处置系统·········‘·············。·······················⋯⋯巧8废水处理系统············，·，·····································一169热工自动化，··········‘二!’’·········.............................179.1热工自动化水平·..................................................179.2控制方式及控制室·········································⋯⋯17·9.3热工检测·················································⋯⋯189.4热工保护·······，··，·，··············，，..··········⋯189.5热工顺序控制及联锁····································一199.6热工模拟量控制·············································⋯⋯199.7热工报警.........................................................209.8脱硫装置分散控制系统·.........................................20t DL/T5196一20049.9热工电源.........................................................219.10厂级监控和管理信息系统·......................................219.11实验室设备·.....................................................2110电气设备及系统·..................................................2210.1供电系统·.....................................................2210.2直流系统·....................................................2310.3交流保安电源和交流不停电电源(UPS)·······..........2310.4二次线·........................................................2411建筑结构及暖通部分·............................................2511.1建筑·...........................................................2511.2结构·...........................................................2611.3采暖通风与空气调节·····。··························........27条文说明·.................................................................29 DL/T5196一2004nil舀根据原国家经贸委《关于确认1999年度电力行业标准制修订计划项目的通知》(电力[[2000]22号)安排制定的随着我国对火力发电厂SO,排放控制的日益严格，采用各种烟气脱硫装置愈来愈普遍，为了统一和规范火力发电厂烟气脱硫装置的设计和建设标准，贯彻“安全可靠、经济适用、符合国情”的基本方针，做到有章可循，结合近几年来火力发电厂烟气脱硫装置的设计和建设过程中遇到的工程实际问题和经验总结，特制定本标准。本标准由中国电力企业联合会提出。本标准由电力规划设计标准化技术委员会归口并解释。本标准起草单位:西南电力设计院。本标准主要起草人:李劲夫、罗永禄、张永全、周明清、彭勇、蒲皓、李承蓉、赵齐、叶丹琼、高元、孙卫民。 DL/T5196一2004范围本标准规定了烟气脱硫装置的设计要求。本标准适用于400t/h及以上锅炉的烟气脱硫装置。4000h以下锅炉的电厂烟气脱硫装置设计可以参照执行。 DL/T5196一20042规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GBJ87工业企业噪声控制设计规范GB8978污水综合排放标准GB50033建筑采光设计标准GB50160石油化工企业设计防火规范GB50229火力发电厂与变电所设计防火规范DL500〕火力发电厂设计技术规程DL/T5029火力发电厂建筑装修设计标准DL/T5035火力发电厂采暖通风与空气调节设计技术规定DL/T5046火力发电厂废水治理设计技术规程DL/T5120小型电力工程直流系统设计规程DL/T5136火力发电厂、变电所二次接线设计技术规程DL/T5153火力发电厂厂用电设计技术规定 DL/T5196一20043一般规定3.0.1脱硫工艺的选择应根据锅炉容量和调峰要求、燃煤煤质(特别是折算硫分)、二氧化硫控制规划和环评要求的脱硫效率、脱硫工艺成熟程度、脱硫剂的供应条件、水源情况、脱硫副产物和飞灰的综合利用条件、脱硫废水、废渣排放条件、厂址场地布置条件等因素，经全面技术经济比较后确定。3.0.2脱硫工艺的选择一般可按照以下原则:1燃用含硫量Sa,--2%煤的机组、或大容量机组(200MW及以上)的电厂锅炉建设烟气脱硫装置时，宜优先采用石灰石一石膏湿法脱硫工艺，脱硫率应保证在90%以上。2燃用含硫量S}<2%煤的中小电厂锅炉(200MW以下)，或是剩余寿命低于10年的老机组建设烟气脱硫装置时，在保证达标排放，并满足SOZ排放总量控制要求，且吸收剂来源和副产物处置条件充分落实的情况下，宜优先采用半干法、干法或其他费用较低的成熟技术，脱硫率应保证在75%以上。3燃用含硫量S=