摘要
研究了溴化锂吸收式热泵在电厂抽汽供热系统中的应用,根据吸收式热泵的特性,建立了溴化锂吸收式热泵的数学模型。在设计工况下,对系统的经济性进行了分析。计算得到热泵系统的热力系数为1.66,火用效率为67.73%,可节约25.1 kg/s的蒸汽。并分析了热泵加热之后的热网水出口温度、热网返回水温度和循环水入口温度等参数对系统经济性的影响。
This paper studied the application of lithium bromide absorption heat pump in steam extraction and heating system of power plant. The mathematical model of lithium bromide absorption heat pump was established according to the characteristics of absorption heat pump. The economy of the system was analyzed under the conditions designed. The COP of heat pump system was 1.66 and the energy efficiency was 67.73%, saving 25.1 kg/s of steam. Finally, the influences of the export temperature of heating water, the temperature of return water and the entrance temperature of the circulating water on the economy were analyzed in the paper.
作者
吉鸿斌
谢英柏
侯轶
薛晓东
JI Hongbin XIE Yingbai HOU Yi XUE Xiaodong(School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding,071003, Hebei, China)
出处
《能源与节能》
2017年第6期95-98,145,共5页
Energy and Energy Conservation
基金
河北省自然科学基金资助项目(E2014502085)
关键词
吸收式热泵
抽汽供热
经济性分析
变工况分析
absorption heat pump
steam extraction and heat supply
economical analysis
variable condition analysis
