粮食平房仓“结构-隔热”一体化墙板热工性能研究
Study on thermal performance of "structure-insulation" integrated wall panels for bulk grain granary
关键词：
平房仓；“结构-隔热”一体化墙板(SIW)；热工性能；传热系数；适用性评价
Key words：
Granary; "Structural-insulation" integrated wall panel(SIW); Thermal performance; Heat transfer coefficient; Applicability evaluation
刊期：
2024年第1期
DOI：
10.19761/j.1000-4637.2024.01.067.07
文章编号：
基金项目：
国家重点研发计划课题项目（2016YFD0401601）；河南省粮油仓储建筑与安全重点实验室开放课题项目（2016KF-A01）。
作者：
赵金全1，刘 衡1，丁永刚1,*，周 龙2，孙 蕾3
单位：
1.河南工业大学 土木工程学院，河南 郑州 450001；2.河南工大设计研究院，河南 郑州 450001； 3.新乡职业技术学院 建筑学院，河南 新乡 453000
摘要
摘 要：为了提高散装粮食平房仓墙体保温隔热性能，提出了一种新型“结构-隔热”一体化墙板（SIW墙板）。通过试验和数值模拟，分析了保温板厚度、连接件等对SIW墙板热工性能的影响，揭示了内、外叶墙板温度、热流密度随时间的变化规律，得到了SIW墙板的传热系数，基于传热系数指标开展了SIW墙板在不同储粮生态区的适用性评价。结果表明：相较于传统平房仓砖砌墙体，保温板厚度为50 mm和80 mm的SIW墙板传热系数分别降低了45.81%和56.13%；GFRP连接件在SIW墙板中的热桥效应不显著，对墙板温度场的影响较小；相较于保温板厚度为50 mm的SIW墙板，80 mm厚的SIW墙板能满足3个储粮生态区对粮食平房仓墙体传热性能的要求。
Abstract: In order to improve the thermal insulation performance of granary walls, a new type of granary wall panel with "structural-insulation" integrated wall panels(SIW) was proposed. Through the experimental study and numerical simulation, the influence of thickness of insulation boards and connectors on the thermal performance of SIW wall panels was analyzed, the change rule of temperature and heat flux of interior and outer wall panels with time was analyzed, the heat transfer coefficients of SIW wall panels was obtained, and the evaluation of the applicability of SIW wall panels in different grain storage ecological zones was carried out based on the index of heat transfer coefficient. The results show that compared with the traditional granary walls, the heat transfer coefficients of SIW wall panels with insulation board thickness of 50 mm and 80 mm are reduced by 45.81% and 56.13%, respectively. The thermal bridging effect of GFRP connectors in SIW wall panels is not significant and has a small effect on the temperature field of the wall panels. Compared to SIW wall panels with a thickness of 50 mm, the 80 mm thickness SIW wall panels can satisfy the requirements of heat transfer performance of granary walls in three grain storage ecological zones.
结论
（1）相较于传统砖砌墙体，保温板厚度为50 mm和80 mm的SIW墙板的传热系数分别降低了45.81%和56.13%，保温隔热性能有了显著提高。
（2）GFRP连接件部位热桥效应较低，使用GFRP连接件对墙板温度场的影响较小。
（3） 使用同种保温材料时，通过增加保温板厚度可以提高墙体隔热性能、减少连接件处热量的传递、减缓热桥效应。
（4）保温板厚度为80 mm的SIW墙板能够满足第一、第二和第三储粮区对墙体传热系数要求，适合在高寒和低寒地区推广使用。
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引用本文
赵金全,刘衡,丁永刚,等.粮食平房仓“结构-隔热”一体化墙板热工性能研究[J].混凝土与水泥制品,2024(1):67-73.
ZHAO J Q,LIU H,DING Y G,et al.Study on thermal performance of "structure-insulation" integrated wall panels for bulk grain granary[J].China Concrete and Cement Products,2024(1):67-73.
上一个： 基于工程监测和数值模拟的混凝土竖向施工缝约束程度研究
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