太阳能辅助电加热联合热水供给系统节能控制  

Energy-Saving Control for Hot Water Delivery System with Solar Heating and Auxiliary Electric Heating

作　　者：刘文龙[1] 杨振东[1] 刘素娟[1] LIU Wenlong;YANG Zhendong;LIU Sujuan(Northeast Petroleum University,Qinhuangdao 066004,China)

机构地区：[1]东北石油大学,河北秦皇岛066004

出　　处：《自动化仪表》2020年第7期45-47,51,共4页Process Automation Instrumentation

摘　　要：太阳能热利用是可再生能源领域的热点技术。考虑到天气变化会导致太阳能供热的不确定性,为了实现全天候的热水供应,选择电能作为辅助能源,提出一种太阳能辅助电加热联合热水供给系统的节能控制方案。根据实际用水量确定储罐的上水量,以减少散热损失;将储罐水温的加热目标值柔化成一条递增形式的目标温度曲线,充分发挥太阳能的加热能力,降低电能消耗。实际应用表明,该控制方案既能确保系统水量与水温达到用户要求,又能有效节约电能。该研究结果能够为太阳能与辅助能源联合供热系统的节能设计提供有效方法。The solar heat utilization is one of the most popular technologies in the field of renewable energy.Considering the uncertainty of solar heating caused by changes in the weather,an energy- saving control scheme for the hot water delivery system with solar heating and auxiliary electric heating is proposed in order to achieve all- weather hot water supply by selecting electric energy as the auxiliary energy.The quantity of water entering in the tank is decided by the actual amount of used water to reduce heat loss.In order to make full use of solar energy and reduce the electric energy consumption,an incremental target temperature curve is given based on the target temperature value of water heated in the tank.The practical application shows that the quantity and temperature of water in the tank is able to satisfy the user requirements,and the electric energy is saved effectively.The research results are able to provide an effective method for the energy- saving design of solar energy and auxiliary energy heating system.

关 键 词：太阳能 电加热 热水供给 节能控制 电锅炉 供水量 供水温度 

分 类 号：TH-81[机械工程]