PFBC-CC中试电站烟气旁路减温器模拟实验研究及设计应用  

Study and application on the attemperator of the gas by-pass in PFBC-CC pilot plant

作　　者：肖军[1] 章名耀[1] 蔡宁生[1] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,南京210096

出　　处：《东南大学学报（自然科学版）》2002年第3期431-436,共6页Journal of Southeast University：Natural Science Edition

基　　金：国家"九五"重点科技攻关资助项目 ( 972 2 6 )

摘　　要：采用冷态模拟实验与数值计算相结合的方法对贾汪PFBC CC中试电站旁路烟道的减温器进行了专门研究设计 .提出的高速文丘里雾化冷却器与小孔型节流降压消音器相结合的减温减压装置在中试电站的成功运行表明 ,采用高速文丘里雾化冷却方式能够充分利用高温高压烟气的能量雾化冷却水 ,既能使大气量的烟气快速降温 ,又能确保烟气的干度 ,安全地实现不同工况下含尘烟气的减温减压排放 .这种新方法解决了高温高压含尘气流的结构简单、紧凑、安全排放的问题 ,可应用于诸如燃煤联合循环发电系统以及石油。The attemperator of the gas by-pass of Jiawang PFBC-CC (prassutized fluidized bed combustion combined cycle) pilot plant was studied by simulating experiment and numerical calculation. The successful practical operation of the pilot plant shows that the venturi spray attemperator can atomize cooling water by using energy from high-temperature and high-pressure gas. It can make large numbers of gas attempered to the required temperature rapidly and ensure the cooling water to vapor and overheat completely, avoiding the depressurizer of minute orifice blocking. The attemperator combined with the depressurizer also can meet operation requirement under variant loads. This new method provides a compact, economic and reliable way to discharge the high-temperature and high-pressure gas with particles, and can be applied in coal-fired combined cycle power generation system and for petrochemical and chemical engineering.

关 键 词：PFBC-CC中试电站 减温器 文丘里雾化冷却器 模拟实验 数值计算 设计 旁路烟道 燃气-蒸汽联合循环发电系统 

分 类 号：TM621.2[电气工程—电力系统及自动化] TM611.31