摘要
受溴化锂溶液质量浓度特性及腐蚀性的影响,楼宇式分布式能源系统烟气热水溴化锂机组在夏季制冷工况下排烟温度不能低于160℃。为降低系统的排烟温度,提出在溴化锂机组排烟出口设置烟气热水换热器,制取生活热水外供和增加热水流量进入溴化锂机组制冷的2种方案。以某分布式能源系统工程为例,计算2种方案的年均综合能源利用效率,结果显示,设置烟气热水换热器后可以降低系统排烟温度,大幅度提高年均综合能源利用效率。
Due to the influence of mass concentration characteristics and corrosivity of lithium bromide solution,the exhaust gas temperature of the flue gas hot water lithium bromide unit of building-type distributed energy system cannot be lower than 160℃ during cooling period in summer. In order to reduce the exhaust gas temperature of the system, it proposes 2 schemes which are setting up a flue gas hot water heat exchanger at the exhaust outlet of the lithium bromide unit and providing domestic hot water externally,or increasing hot water flow that flow into the lithium bromide unit. Taking a distributed energy system project as an example,the annual average energy utilization efficiency of the 2 schemes are calculated and the results show that setting up flue gas hot water heat exchanger can reduce the system exhaust gas temperature,and greatly improve the annual average energy utilization efficiency.
出处
《华电技术》
CAS
2018年第7期74-76,共3页
HUADIAN TECHNOLOGY
关键词
楼宇式天然气分布式能源系统
烟气热水溴化锂机组
排烟温度
烟气热水换热器
年均综合能源利用效率
building-type natural gas distributed energy system
flue gas hot water lithium bromide unit
exhaust gas temperature
flue gas hot water heat exchanger
annual average energy utilization efficiency
