新型环形均流布水器性能模拟研究  

Performance Simulation Study of a New Annular Uniform Flow Water Distributor

作　　者：王菲 葛继焜 陈华洋 贾玉贵[1,2,3] WANG Fei;GE Jikun;CHEN Huayang;JIA Yugui(Hebei University of Architecture,Zhangjiakou 075024,China;Hebei Province Green Building Collaborative Innovation Center,Zhangjiakou 075024,China;Hebei Energy Storage Heating Technology Innovation Center,Zhangjiakou 075024,China)

机构地区：[1]河北建筑工程学院,河北张家口075024 [2]河北省绿色建筑协同创新中心,河北张家口075024 [3]河北省储能供热技术创新中心,河北张家口075024

出　　处：《仪表技术》2025年第2期79-82,共4页Instrumentation Technology

摘　　要：由于太阳能具有间歇性和不稳定性,其有效利用成为一大挑战。为充分利用太阳能并确保供热稳定,提出了在太阳光照充足时存储多余热量,光照不足时释放热量的策略。蓄热水箱被用于解决蓄放热过程中的温度掺混问题。为提高蓄热水箱热效率,设计了一种新型环形均流布水器。通过建立物理模型,在初始水温30℃、进水温度90℃的条件下,对比分析了4种不同开孔孔径下蓄热水箱的分层特性。结果显示,4 mm开孔孔径时,温度曲线斜率最大,升温速度最快。The effective utilization of solar energy has become a major challenge due to its intermittency and instability.To fully utilize solar energy and ensure stable heating,a strategy is proposed to store excess heat when there is sufficient sunlight and release heat when the sun is insufficient.The thermal storage water tank is used to solve the problem of temperature mixing during the process of heat storage and release.A new type of annular uniform flow water distributor is designed to improve the thermal efficiency of the thermal storage water tank.By establishing a physical model,the stratification characteristics of a thermal storage water tank are compared and analyzed under four different aperture sizes,with an initial water temperature of 30℃and an inlet water temperature of 90℃.The results show that when the aperture is 4 mm,the slope of the temperature curve is the largest and the heating rate is the fastest.

关 键 词：布水器 温度分层 斜温层 开孔孔径 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]