| 热力管加热桥面抗冰融冰试验研究 |
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| 引用本文： | 张登春,章照宏,袁江雅,邹声华,李孔清,李文宇.热力管加热桥面抗冰融冰试验研究[J].中国安全生产科学技术,2017,13(12):179-185. |
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| 作者姓名： | 张登春 章照宏 袁江雅 邹声华 李孔清 李文宇 |
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| 作者单位： | (1. 湖南科技大学 土木工程学院，湖南 湘潭，411201；2. 湖南省高速公路管理局，湖南 长沙 410016) |
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| 摘 要： | 为了研究热力管加热桥面抗冰融冰对于公路交通安全的影响，制作了尺寸为600 mm×600 mm×380 mm的桥梁试件，在人工环境室对热力管融冰进行了模型试验。结果表明:试件上表面温升速率和融冰时间取决于热力管间距、隔热层、风速、环境温度和热力管外表面温度。在相同工况条件下，100 mm间距的热力管融冰能力要大于150 mm间距的热力管，无隔热层时，100 mm间距热力管向上传递的热量占总加热量的13.4%，融冰时间为211 min；150 mm间距热力管向上传递的热量占总加热量的18.3%，融冰时间为271 min。在热力管层下面铺设厚度为2 mm、导热系数为0.062 W/（m· K）的隔热材料后，100 mm间距热力管向上传递的热量占总加热量的46.9%，融冰时间为175 min；150 mm间距热力管向上传递的热量占总加热量的51.9%，融冰时间为161 min。热力管层铺设隔热材料可有效阻止热量向下传递，从而缩短融冰时间。
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| 关 键 词： | 热力管 桥面 防冰融冰 模型试验 |
Experimental research on anti icing and ice melting of bridge deck by heat pipe heating |
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| ZHANG Dengchun,ZHANG Zhaohong,YUAN Jiangya,ZOU Shenghua,LI Kongqing,LI Wenyu.Experimental research on anti icing and ice melting of bridge deck by heat pipe heating[J].Journal of Safety Science and Technology,2017,13(12):179-185. |
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| Authors: | ZHANG Dengchun ZHANG Zhaohong YUAN Jiangya ZOU Shenghua LI Kongqing LI Wenyu |
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| Affiliation: | (1. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan Hunan 411201, China;
2. Hunan Provincial Expressway Administration, Changsha Hunan 410016, China) |
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| Abstract: | To study the influence of anti icing and ice melting of bridge deck by the heating of heat pipe on the traffic safety of highway, the model tests of ice melting by the heat pipe were carried out in the artificial environment chamber through preparing the bridge samples with the size of 600 mm×600 mm×380 mm. The results showed that the temperature rise rate and ice melting time on the upper surface of the samples depended on the heat pipe spacing, heat insulation layer, air velocity, environment temperature and external surface temperature of heat pipe. Under the same working conditions, the ice melting capacity of the heat pipe with the spacing of 100 mm was greater than that of 150 mm. When without the heat insulation layer, the heat quantity transferring upward from the heat pipe with the spacing of 100 mm accounted for 13.4% of the total heat quantity, and the ice melting time was 211 min, while the heat quantity with 150 mm spacing accounted for 18.3% of the total heat quantity, and the ice melting time was 271 min. After laying the heat insulation material with the thickness of 2 mm and the thermal conductivity coefficient of 0.062 W/(m· K) under the heat pipe layer, the heat quantity transferring upward from the heat pipe with the spacing of 100 mm accounted for 46.9 % of the total heat quantity, and the ice melting time was 175 min, while the heat quantity with 150 mm spacing accounted for 51.9 % of the total heat quantity, and the ice melting time was 161 min. Laying the heat insulation material under the heat pipe layer can effectively prevent the downward heat transfer, so the ice melting time will be shortened. |
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| Keywords: | heat pipe bridge deck anti icing and ice melting model test |
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