化工进展2018，Vol.37Issue(3)：875-883,9.DOI:10.16085/j.issn.1000-6613.2017-1158
热负荷分配比例对抽凝-背压供热机组能耗影响
Impacts of heat load distribution ratio on energy consumption of extraction steam- high back pressure heating cogeneration unit
摘要
Abstract
Using extraction steam- high back pressure heating mode is an effective way to achieve energy cascade utilization and reduce the coal consumption rate in cogeneration units. In a cogeneration power plant,a key issue for energy saving is to determine the optimal value of heat load distribution ratio between heating condenser and peak load heater,based on the power plant energy consumption variation resulting from the heat load distribution ratio between heating condenser and peak load heater. The output power was simulated by using Ebsilon platform,and coal consumption were calculated under conditions with different heat load distribution ratios. Results showed that heat load distribution ratio greatly affects cogeneration unit energy consumption. The variation of coal rate range is from 2.02g/(kW·h) to 5.50g/(kW·h),due to the change of heat load distribution ratio between heating condenser and peak load heater. The relations between the output power and heating condenser heat load distribution ratio varies with heating stages.关键词
抽凝-背压供热/能量梯级利用/节能降耗/发电煤耗率/热负荷分配Key words
extraction steam- high back pressure heating/energy cascade utilization/energy saving/coal consumption/heat load distribution分类
信息技术与安全科学引用本文复制引用
杨志平,时斌,李晓恩,王宁玲..热负荷分配比例对抽凝-背压供热机组能耗影响[J].化工进展,2018,37(3):875-883,9.基金项目
国家科技支撑计划(2014BAA06B02)及国家重点基础研究发展计划(2015CB251505)项目. （2014BAA06B02）
