热力发电Issue(12)：38-43,6.DOI:10.3969/j.issn.1002-3364.2014.12.038
溴化锂吸收式热泵回收循环水余热的模拟研究
Using lithium bromide absorption heat pump to recycle circulating water heat:a simulation
摘要
Abstract
Waste heat of circulating water emitted to the environment causes huge thermal pollution and los-ses lots of thermal energy.Thus,absorption heat pump is applied to recycle the heat.Taking a certain 200 MW extraction condensing unit and its heating system as the example,the Aspen Plus software was employed to establish the single/double effect lithium bromide absorption heat pump model.Moreover, comparative analysis for the system under variable conditions was performed.The results indicate that, with an increase in the heat pump outlet heating network water temperature or the heat pump driven steam source,the coefficient of performance (COP)of both the single and double effect cycle heat pump declined. For the same heating temperature,the double-effect cycle can save steam by about 30% more than the sin-gle-effect cycle.When the temperature of heat pump outlet heating network water exceeded 90 ℃,the heat-ing network return water can be heated to about 90 ℃ by heat pump first,and then to the required temper-ature by spike heater,thus to ensure the stable operation of system.关键词
吸收式热泵/循环水余热/单效循环/双效循环/热网水温度/驱动汽量/热力系数/蒸汽率Key words
absorption heat pump/circulating water heat/single effect cycle/double effect cycle/heating net-work water temperature/drive steam/thermodynamic coefficient/steam consumption rate分类
能源科技引用本文复制引用
车德勇,吕婧,高龙,李少华,白章..溴化锂吸收式热泵回收循环水余热的模拟研究[J].热力发电,2014,(12):38-43,6.基金项目
吉林省科技发展计划大学生创业资金项目(20130523004HJ) （20130523004HJ）
