华电技术 ›› 2021, Vol. 43 ›› Issue (12): 72-78.doi: 10.3969/j.issn.1674-1951.2021.12.011

• 技术交流 • 上一篇    下一篇

基于建筑综合物性系数的换热站运行调节策略分析

郑刚1, 李金刚2, 刘依婷3,*()   

  1. 1.国能宁夏供热有限公司,银川 750001
    2.华电内蒙古能源有限公司卓资发电分公司 内蒙古 乌兰察布 012300
    3.河北工业大学 能源与环境工程学院,天津 300401
  • 收稿日期:2021-09-30 修回日期:2021-11-08 出版日期:2021-12-25 发布日期:2021-12-10
  • 通讯作者: 刘依婷
  • 作者简介:郑刚(1966—),男,山东日照人,工程师,从事供热公司的管理工作。
    李金刚(1970—),男,山西朔州人,工程师,从事供热公司生产管理工作。
  • 基金资助:
    河北省重大科技成果转化专项(20284501Z)

Analysis on operation regulation strategy for heat exchange stations based on building comprehensive physical property coefficients

ZHENG Gang1, LI Jingang2, LIU Yiting3,*()   

  1. 1. Guoneng Ningxia Heating Company Limited,Yinchuan 750001,China
    2. Zhuozi Power Generation Branch of Huadian Inner Mongolia Energy Company Limited,Ulanqab 012300,China
    3. School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401,China
  • Received:2021-09-30 Revised:2021-11-08 Online:2021-12-25 Published:2021-12-10
  • Contact: LIU Yiting

摘要:

集中供热系统的热力管网及换热站运行调节策略是实现整个系统优化运行的关键。将如何根据建筑热特性、室内温度以及室外气象参数的变化制定科学合理、简单易行的运行调节策略设为研究目标。根据热平衡理论,即散热设备的散热量与建筑耗热量近似,定义出建筑综合物性系数BC。在计算出换热站BC的基础上,提出补偿周期(Tb)的概念,利用BC结合建筑延迟时间以及供热系统Tb,提出了一种基于BC的热网运行调控策略。将提出的调控策略应用到某寒冷地区智慧供热系统中2个典型换热站的运行中,结果显示应用建筑综合物性系数指导供热系统运行调节取代了以往的盲目供热和经验供热,提高供热精准度同时能够达到很好的节能效果。

关键词: 智能热网, 建筑综合物性系数, 运行调节策略, 建筑延迟时间, 供热系统补偿周期, 智慧供热

Abstract:

The operation regulation strategy of heating pipe networks and heat exchange stations in central heating systems is the key to optimize the operation of the whole system. Formulating a scientific, reasonable and simple regulation strategy for the system according to the thermal characteristics, indoor temperature and outdoor meteorological parameters of buildings is the research goal. According to the heat balance theory, heat dissipation of radiating equipment is approximately equal to the heat consumption by buildings, the comprehensive physical property coefficient of buildings (BC) is defined. Based on the calculation results of BC value of a heat exchange station, the concept of "compensation period" is proposed. Using the BC, time lags and compensation period of the heating system, a heat network operation control strategy based on the BC is proposed. The proposed regulation strategy for the intelligent heating system has been applied in two typical heat exchange stations in a cold area. The results show that replacing the conventional aimless operation regulation for heating systems by BC-based operation regulation can improve the heating accuracy and energy-saving effect.

Key words: intelligent heat network, comprehensive physical property coefficient of buildings, operation regulation strategy, construction delay time, compensation period of heating system, intelligent heat supply

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