【作者】 李磊；

【导师】 崔彦彬； 韩荣利；

【作者基本信息】 华北电力大学 ， 工业工程（专业学位）， 2014， 硕士

【摘要】 根据中国电力企业联合会（中电联）统计，截止到2009年底，我国全口径发电设备容量为87410万KW，其中火力发电65108万KW。约占总容量的74.49%。大量的燃煤和煤中较高的含硫量必然导致大量的SO2的排放，1995年我国SO2排放量达到2370万t，超过欧洲和美国，成为世界SO2排放第一大国，之后连续多年排放量超过2000万t，由此造成严重的环境污染，特别是SO2急酸雨的污染逐年加重。为适应在电力行业快速反战的情况下做好环境保护工作的需要，控制燃煤电厂大气污染物排放，改善我国空气质量和控制酸雨污染，对火力发电厂的大气污染物排放进行严格的控制已经刻不容缓。华电十里泉发电厂#6、#7机组装机容量为2×300MW。工程于1994年3月开工建设，1996年12月#6机组投产，1997年11月#7机组投产。两台机组脱硫改造工程建设两套脱硫装置，于2006年12月投入运行并于2007年4月通过环保验收。长期以来华电十里泉发电厂对环保工作非常重视，特别是SO2的污染问题。#6、#7机组脱硫技改工程建设了脱硫系统。但在脱硫装置投运以后由于煤炭市场供应不稳定，电厂有时燃用煤种硫份超过2.0%，而且燃煤发热量也比设计煤种低，造成脱硫装置入口SO2浓度远高于原设计入口SO2浓度，所以电厂对#6、#7机组实施脱硫装置改造项目。论文首先总结了十里泉发电厂脱硫技改项目综合评价课题的研究背景和意义，阐述了火电厂脱硫工艺以及综合评价的基本理论知识，介绍了十里泉发电厂脱硫技改项目的基本概况。然后在以上研究的基础上，从经济效益、社会和环境效益、技术性能以及风险等方面构建了科学、合理、全面的十里泉发电厂脱硫改造项目综合评价指标体系，并结合模糊综合层次分析法对十里泉发电厂脱硫改造项目进行综合评价，评价结果显示该项目总体效果处于良好水平，说明该项目对于十里泉发电厂是积极有益的。最后对火电厂脱硫项目提出问题和改进意见，为以后的火电厂脱硫项目提供参考和借鉴。更多还原

【Abstract】 According to China Electricity Council (CEC) statistics,by the end of2009,thecapacity of equipment overall power generation in China is874100000KW, thethermal power of651080000KW. Accounts for about74.49%of total capacity. Highcoal and coal in the sulfur content of a lot of will inevitably lead to a large number ofSO2emission,SO2emission in China in1995reached23700000T, more than Europeand the United States, to become the world’s SO2emissions superpower, after years ofemissions by more than20000000T,which caused serious pollution to theenvironment, especially the SO2acute acid rain pollution increase year by year. Inorder to adapt to the need to do a good job of environmental protection fast anti war inthe electric power industry conditions, control of coal-fired power plantemissions,improve air quality and control of acid rain pollution in China, airpollutants on the thermal power plant emissions to strictly control has been crunchtime.#6,#7units in Shiliquan Power Plant installed capacity of2×300MW. project in1994started construction in March, put into operation in1996December put intooperation in1997November,#6unit,#7units. Two generating units desulfurizationproject construction of two sets of desulfurization equipment put into operation inDecember, in2006and in2007April through the acceptance of environmentalprotection. For a long time in Shiliquan Power Plant attaches great importance toenvironmental protection work,especially the pollution problem of SO2.#6,#7unitsdesulfurization technical transformation project construction of desulfurization system.But in the desulfurization equipment put into operation after the unstable coal marketsupply, power plants burning coal sulfur is sometimes more than2%,and the quantityof heat than the designed coal desulfurization device caused by low, entrance SO2concentration is much higher than the original design entrance SO2concentration, sothe power plant on the#6,#7project implementation units desulfurization unittransformation.The paper first summarized the research project of Shiliquan fire power plantdesulfurization comprehensive evaluation of the research background and significance,elaborates the basic theory knowledge of thermal power plant desulfurization processand comprehensive evaluation, and introduces the basic situation of the thermal powerplant desulfurization renovation project shiliquan. Then based on the above research,from the aspects of economic, social and environmental benefits, technicalperformance and risk,the paper establishes the evaluation index system of ShiliquanPower plant desulfurization renovation project scientific, reasonable, comprehensive,and combined with fuzzy analytic hierarchy process to evaluate the ten spring firepower plant desulfurization renovation project, evaluation results display the overalleffect the project is good, the project for the Shiliquan Power Plant is positive. At the end of the thermal power plant desulfurization project put forward problems andsuggestions,and to provide reference for the thermal power plant desulfurizationproject for the future.更多还原