生活垃圾电厂节能技术的研究.docVIP

毕 毕 业 设 计(论文) 题 目 生活垃圾电厂系统节能技术的研究 系 别 动力工程系 专业班级 热能与动力工程专业08K2班 学生姓名 李怀贤 指导教师 尹水娥 二○一二年六月 华北电力大学科技学院本科毕业设计（论文） PAGE I PAGE III PAGE II 生活垃圾电厂系统节能技术的研究 摘 要 随着城市建设和经济发展，城市生活垃圾产量增长迅速，焚烧法是最有效的方法。焚烧垃圾发电是实现垃圾处置“无害化、减量化、资源化”的重要手段。然而垃圾发电热效率的利用率仅为火力发电效率的一半。这对于垃圾电厂系统节能研究来说意义非常重大。 本文在详细了解和分析城市生活垃圾电厂构成和运行原理基础上，对垃圾发电厂系统的各个子系统进行了节能潜力分析和研究。主要分析子系统包括：垃圾焚烧炉工艺；余热领用工艺；烟气净化工艺等。结果表明：焚烧炉的节能；锅炉排烟、排污水余热的利用；采用循环流化床锅炉焚烧；采用热循环利用；泵与风机的节能；锅炉除尘设备系统的节能；给水流量调节的节能等，而其中泵与风机的节能潜力巨大。 本文通过选取一台12NL-125型全容量立式凝结水泵进行节能计算，得出使用变频技术一年可节约38.203 吨标准煤。验证了对泵的变频调节方案是可行的。 关键词: 节能；垃圾发电厂；变频调速 THE STUDY OF ENERGY-SAVING TECHNOLOGY IN MSW POWER PLANT SYSTEMS Abstract With the urban construction and economic development，the rapid growth of municipal solid waste production，incineration is the most effective method．The incineration of waste generation is an important means of garbage disposal harmless，minimization，resource． However，the utilization of waste power generation thermal efficiency is only half of the thermal efficiency．This is of great significance for the MSW power plant systems，energy-saving research． On the basis of detailed understanding and analysis of municipal solid waste power plants, the composition and operation principle of, MSW power plant system, subsystem analysis and research of energy saving potential. The main analysis subsystem, including: waste incinerator technology recipients; waste heat process; flue gas purification process. The results showed that: energy conservation; incinerator boiler exhaust gas, sewage water waste heat utilization; circulating fluidized bed boiler burning; by thermal recycling; energy-saving pump and fan; energy-saving boiler dust removal equipment; energy-saving water flow regulation pump and fan energy saving potential is enormous. This article by selecting a full capacity of 12NL-125 Vertical Condensate Pump for energy calculation, and obtained the use of inverter technology can save 38.203 tons of coal a year. Verify that the pump inverter control scheme