熔盐单罐双盘管释热换热器布置方式优选

doi:10.19912/j.0254-0096.tynxb.2020-1388

太阳能学报 ›› 2022, Vol. 43 ›› Issue (8): 209-215.DOI: 10.19912/j.0254-0096.tynxb.2020-1388

熔盐单罐双盘管释热换热器布置方式优选

孔庆龙, 鹿院卫, 于强, 张灿灿, 吴玉庭

北京工业大学传热强化与过程节能教育部重点实验室暨传热与能源利用北京市重点实验室,北京 100124

收稿日期:2020-12-22 出版日期:2022-08-28 发布日期:2023-02-28
通讯作者: 鹿院卫（1971—）,女,博士、教授,主要从事可再生能源利用方面的研究。luyuanwei@bjut.edu.cn
基金资助:
国家自然科学基金（52076006）; 青海省科技计划（2017-GX-A3）

OPTIMUM LAYOUT OF MOLTEN SALT SINGLE TANK DOUBLE COIL HEAT RELEASING HEAT EXCHANGER

Kong Qinglong, Lu Yuanwei, Yu Qiang, Zhang Cancan, Wu Yuting

Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education and Key Laboratory of Heat Transfer and EnergyConversion of Beijing, Beijing University of Technology, Beijing 100124, China

Received:2020-12-22 Online:2022-08-28 Published:2023-02-28

摘要/Abstract

摘要： 为了获得单罐内盘管换热器最佳的布置方式,利用数值计算的方法研究相同换热器面积不同盘管换热器布置方式对单罐蓄热系统释热性能的影响规律。结果表明,叉排双螺旋盘管换热器的释热性能优于单排盘管换热器,且内盘管高外盘管低（hi=90 mm,ho=174 mm）的布置方式换热器其释热功率、出口温度以及累计释热量最大。

关键词: 对流, 传热, 熔盐, 单罐, 盘管换热器, 供热

Abstract: The molten salt single-tank thermal storage heating system is a low-cost clean energy heating mode that realizes heat storage by built-in electric heaters and heat release by built-in coil heat exchangers. The built-in coil heat exchanger area of this system increases with the increase of heating load, which leads to the arrangement of the coil heat exchanger directly affects the heat release performance of the single tank heat storage system. In order to obtain the best arrangement of coil heat exchanger in a single tank, this paper investigates the effect of different coil heat exchanger arrangements with the same heat exchanger area on the heat release performance of the single tank heat storage system by using numerical calculation method. The results show that the heat release performance of the staggered double spiral coil heat exchanger is better than that of the single row coil heat exchanger, and the capacity, discharge temperature and accumulated heat release are the largest for the arrangement with high inner coil and low outer coil （h_i=90 mm, h_o=174 mm）. The results of this paper provide a theoretical basis for the design of heat exchanger with electrically heating molten salt single tank heat storage.

Key words: convection, heat transfer, molten salt, single tank, coil heat exchanger, heating

中图分类号:

TK12

孔庆龙, 鹿院卫, 于强, 张灿灿, 吴玉庭. 熔盐单罐双盘管释热换热器布置方式优选[J]. 太阳能学报, 2022, 43(8): 209-215.

Kong Qinglong, Lu Yuanwei, Yu Qiang, Zhang Cancan, Wu Yuting. OPTIMUM LAYOUT OF MOLTEN SALT SINGLE TANK DOUBLE COIL HEAT RELEASING HEAT EXCHANGER[J]. Acta Energiae Solaris Sinica, 2022, 43(8): 209-215.

参考文献

[1] 李九如, 董喜欣, 陈巨辉, 等. 太阳能&谷电加热熔盐蓄热系统特性[J]. 哈尔滨理工大学学报, 2017, 22(1): 80-85.
LI J R, DONG X X, CHEN J H, et al.Characteristics of solar & valley current heated molten salt thermal storage system[J]. Journal of Harbin University of Technology, 2017, 22(1): 80-85.
[2] 吴玉庭, 张晓明, 王慧富, 等. 基于弃风弃光或低谷电加热的熔盐蓄热供热技术及其评价[J]. 中外能源, 2017, 22(2): 93-99.
WU Y T, ZHANG X M, WANG H F, et al.Molten salt heat storage heating technology and its evaluation based on abandoning wind and light or low valley electric heating[J]. Sino foreign energy, 2017, 22(2): 93-99.
[3] 马重芳, 吴玉庭, 任楠, 等. 熔盐蓄热式电加热集中供暖系统:CN103836703A[P].2014-06-04.
MA C F, WU Y T, REN N, et al. Molten salt regenerative electric heating central heating system: CN103836703a[P].2014-06-04.
[4] 鹿院卫, 吴玉庭, 杜文彬, 等. 一种单罐电能蓄热装置:CN203771692U[P].2014-08-13.
LU Y W, WU Y T, DU W B, et al. A single tank electric energy storage device: CN203771692U [P].2014-08-13.
[5] 姚俊彬, 赵峥峥. 单罐熔盐蓄热供暖系统研究及其应用[J]. 西部皮革, 2017, 39(2): 18-20, 39.
YAO J B, ZHAO Z Z.Research and application of single tank molten salt regenerative heating system[J]. Western leather, 2017, 39(2): 18-20, 39.
[6] 王辉涛, 王华, 刘泛函, 等. 一种新型蓄热换热罐:CN202582305U[P].2012-12-05.
WANG H T, WANG H, LIU F H, et al. A new type of heat storage heat exchanger: CN202582305U[P].2012-12-05.
[7] 孙晓丽, 鹿院卫, 崔锡民, 等. 单罐熔融盐释热传热规律实验研究[J]. 太阳能学报, 2018, 39(1): 8-13.
SUN X L, LU Y W, CUI X M, et al.Experimental study on heat release and heat transfer of molten salt in a single tank[J]. Acta solar energy, 2018, 39(1): 8-13.
[8] 崔锡民, 鹿院卫, 吴玉庭, 等. 温度分层对小型熔盐单罐释热过程影响[J]. 化工学报, 2018, 69(6): 2410-2416.
CUI X M, LU Y W, WU Y T, et al.Effect of temperature stratification on heat release process of small molten salt single tank[J]. Acta chem sinica, 2018, 69(6): 2410-2416.
[9] 施素丽, 鹿院卫, 于强, 等. 熔盐单罐释热过程换热器取热方式优选[J]. 化工学报, 2019, 70(3): 857-864.
SHI S L, LU Y W, YU Q, et al.Optimization of heat extraction mode of heat exchanger in molten salt single tank[J]. Acta sinica sinica, 2019,70(3): 857-864.
[10] 陈才星. 基于复合相变材料的螺旋盘管蓄热器的结构和性能的数值研究[D]. 广东: 华南理工大学, 2017.
CHEN C X.Numerical study on structure and performance of spiral coil regenerator based on composite phase change materials[D]. Guangdong: South China University of Technology, 2017.
[11] 孟锋. 双螺旋盘管相变蓄热器的实验与数值模拟研究[D]. 天津: 天津大学, 2017.
MENG F.Experimental and numerical simulation of double helix coil phase change regenerator[D]. Tianjin: Tianjin University, 2017.
[12] WU Y T, LI Y, LU Y W, et al.Novel low melting point binary nitrates for thermal energy storage applications[J]. Solar energy materials & solar cells, 2017, 164(10): 114-121.
[13] 李英. 低熔点二元混合熔盐传热蓄热介质的制备及热物性研究[D]. 北京: 北京工业大学, 2017.
LI Y.Preparation and thermophysical properties of binary mixed molten salt with low melting point[D]. Beijing: Beijing University of Technology, 2017.
[14] 李英, 吴玉庭, 鹿院卫, 等. 二元混合硝酸盐相图的预测及热物性实验研究[J]. 太阳能学报, 2018, 39(2): 435-440.
LI Y, WU Y T, LU Y W, et al.Phase diagram prediction and thermophysical properties of binary mixed nitrate[J]. Acta energiae solaris sinica, 2018, 39(2): 435-440.
[15] 任嘉, 张瑶, 沈正帆. 基于修正RNG k-ε模型的叶片泵非设计工况数值模拟[J]. 舰船科学技术, 2014, 36(10): 101-105.
REN J, ZHANG Y, SHEN Z F.Numerical simulation of vane pump off design condition based on modified RNG k-ε model[J]. Ship science and technology, 2014, 36(10): 101-105.
[16] 孙晓丽. 单罐熔融盐蓄热与释热传热规律研究[D]. 北京: 北京工业大学, 2016.
SUN X L.Study on heat storage and heat release of molten salt in a single tank[D]. Beijing: Beijing University of Technology, 2016.

熔盐单罐双盘管释热换热器布置方式优选

OPTIMUM LAYOUT OF MOLTEN SALT SINGLE TANK DOUBLE COIL HEAT RELEASING HEAT EXCHANGER

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