基于高密度复合相变储热材料电热锅炉的分时配比供热系统  

Investigation on a time-sharing heating system using a high-density composite phase change heat storage material-an electric boiler

作　　者：尹浩 唐志伟[2] 王昊 金翼 丁玉龙[4] YIN Hao;TANG Zhiwei;WANG Hao;JIN Yi;DING Yulong(Fengtai Branch of Beijing Thermal Power Group Co.,Ltd.,Beijing 100028,China;Key Laboratory of Heat Transfer Enhancement and Process Energy Conservation Ministry of Education,Beijing University of Technology,Beijing 100124,China;Nanjing Alloy Energy Materials Co.,Ltd.,Nanjing 210047,Jiangsu,China;Birmingham Centre for Energy Storage,University of Birmingham,Birmingham B152TT,Birmingham,UK)

机构地区：[1]北京市热力集团有限责任公司丰台分公司,北京100028 [2]北京工业大学传热强化与过程节能教育部重点实验室,北京100124 [3]南京金合能源材料有限公司,江苏南京210047 [4]英国伯明翰大学,英国伯明翰B152TT

出　　处：《储能科学与技术》2022年第9期3003-3010,共8页Energy Storage Science and Technology

摘　　要：本工作研究了基于高密度复合相变储热材料电热锅炉的分时配比供热系统,对高密度复合相变储热材料及其电热锅炉进行了描述。结合冬季供热的负荷系数随室外环境温度的变化规律,对分时配比供热系统蓄热设备进行了优化设计,提出了分时配比供热系统的优化原则。结合城市供热的示范工程,分时配比供热系统与全蓄热式供热系统比较,不仅能够节省锅炉房空间31%,节约初投资33%,与传统直热式电锅炉比较节省运行费用46%,同时减少了锅炉房的用电负荷,降低了电力增容压力。通过供热负荷分析说明了分时配比供热系统具备极寒天气的供热调峰能力和设备备用功能。This study explores a time-sharing heating system using an electric boiler,which is a high-density composite phase change material.By combining the variation law of the load coefficient of heating in winter with outdoor ambient temperature,the optimization design of the heat storage device of the time-sharing heating system was performed,and the optimization principle of the time-sharing heating system was proposed.Considering the demonstration project of urban heating as an example,the time-sharing and proportion heating system could save the boiler room’s space by 31%,initial investment by 33%,and operating cost by 46%.Furthermore,the power load of the boiler room can be reduced and pressure of power capacity can be increased,compared with the traditional direct-heat electric boiler.The heating load analysis revealed that the time-sharing heating system could heat peak regulation and equipment reserve function in extremely cold weather.

关 键 词：复合相变储热材料 分时配比供热系统 运行费用 供热保障 

分 类 号：TK02[动力工程及工程热物理]