饱和水蓄热器在太阳能热发电技术中的应用  

Application of saturated water storage device in solar thermal power technology

作　　者：颜飞龙[1] 

机构地区：[1]杭州锅炉集团股份有限公司,浙江杭州310021

出　　处：《能源工程》2014年第6期43-47,共5页Energy Engineering

摘　　要：饱和水蓄热器在以水/蒸汽为工质的太阳能热发电系统中发挥重要作用,当太阳辐射参数波动时,饱和水蓄热器通过闪蒸方式可以持续产生一定的蒸发量,以维持热力发电系统的正常运行。通过建模分析,得出饱和水蓄热器蒸发量、水位、压力等参数随蒸发温度的变化关系;并结合德令哈10 MW太阳能热发电工程实例进行分析。结果显示:在没有太阳能输入的条件下,该工程配置的饱和水蓄热装置,能够使系统在平均50%的额定负荷下持续工作0.5 h。Saturated water storage device（ SWS） takes an important role in solar thermal power system with water /steam as the heat transfer medium. When solar radiation fluctuates,the SWS generate continuous flow of saturated steam through flash evaporation,so the thermal power system can run stably and incessantly. A mathematical model was built and the consequent trends of the evaporating flow,water level,steam pressure and other parameters separately with the evaporating temperature was given. The SWS model was validated in the 10 MW solar thermal power project which had been operating in Delingha City. Results revealed that the SWS can support the thermal system operation for half an hour at 50%-rated power averagely without solar energy input.

关 键 词：太阳能热发电 饱和水蓄热 蒸发量 太阳辐射 

分 类 号：TK519[动力工程及工程热物理—热能工程]