9E燃机余热锅炉深度节能技术研究  

Research on Deep Energy Saving Technology of 9E Gas Turbine HRSG

作　　者：樊立安 张东明 徐立 FAN Li-an;ZHANG Dong-ming;XU Li

机构地区：[1]浙江浙能兴源节能科技有限公司 [2]浙江省能源集团有限公司科技工程与服务产业分公司

出　　处：《节能与环保》2023年第1期44-45,共2页

摘　　要：为有效降低9E燃机配套余热锅炉的排烟损失,实现机组更低的碳排放水平,选择某300MW燃气-蒸汽联合循环机组为研究对象,设计研究了两种深度节能技术方案。热力计算结果表明,两种方案均可将余热锅炉排烟温度降低至90℃左右,其中低压汽水系统方案解决了节点温差对中温烟气余热利用的限制,低压系统设计0.17MPa时,余热锅炉排烟温度可降低至90℃,此时可增加机组发电功率约2.8MW;低温余热发电方案则直接利用低温排烟余热,通过增加ORC膨胀发电装置以实现低温余热发电,发电装机可达约2.5MW。In order to effectively reduce the exhaust gas loss of waste heat boiler matched with 9E gas turbine and achieve lower carbon emission level of the unit,a 300MW gas steam combined cycle unit was selected as the research object,and two deep energysaving technical schemes were designed and studied.The thermodynamic calculation results show that both schemes can reduce the exhaust gas temperature of the waste heat boiler to about 90 ℃.The low pressure steam water system scheme solves the restriction of the node temperature difference on the utilization of the waste heat of the medium temperature flue gas.When the low pressure system is designed at 0.17MPa,the exhaust gas temperature of the waste heat boiler can be reduced to 90 ℃,and the generating power of the unit can be increased by about 2.8MW;Low temperature waste heat power generation scheme directly uses the waste heat of low temperature smoke exhaust,and realizes low temperature waste heat power generation by adding ORC expansion power generation device.The installed capacity of power generation can reach about 2.5MW.

关 键 词：9E燃机 余热锅炉 深度节能 排烟温度 

分 类 号：TM611.31[电气工程—电力系统及自动化]