| 低喷淋密度超亲水表面水平管降液膜温度分布 |
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| 引用本文： | 郑毅,李智临,赵祥迪,李昀,马学虎.低喷淋密度超亲水表面水平管降液膜温度分布[J].工程热物理学报,2020(3):728-733. |
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| 作者姓名： | 郑毅 李智临 赵祥迪 李昀 马学虎 |
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| 作者单位： | 中国石油化工股份有限公司青岛安全工程研究院;辽宁省化工资源清洁利用重点实验室 |
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| 基金项目： | 国家自然科学基金重点项目(No.51836002)。 |
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| 摘 要： | 水平管降液膜蒸发广泛应用在石油、化工、海水淡化等领域,对低喷淋密度温度演化规律的研究有助于拓宽其应用范围,理解其微观机理。本文在超亲水表面上结合红外热追踪技术,对水平管降液膜表面的温度演化规律进行了研究,分析了温度分区现象和温升规律。实验中首次发现了马鞍形液膜内部的高温环状结构,并结合三维数值模拟揭示了掺混作用导致的局部高温环状结构形成的内部机理。
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| 关 键 词： | 降液膜 超亲水 水平管 温度分布 |
The Temperature Distribution of Horizontal Falling-Film at Low Spray Densityfor Superhydrophilic Surface |
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| ZHENG Yi,LI Zhi-Lin,ZHAO Xiang-Di,LI Yun,MA Xue-Hu.The Temperature Distribution of Horizontal Falling-Film at Low Spray Densityfor Superhydrophilic Surface[J].Journal of Engineering Thermophysics,2020(3):728-733. |
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| Authors: | ZHENG Yi LI Zhi-Lin ZHAO Xiang-Di LI Yun MA Xue-Hu |
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| Institution: | (SINOPEC Research Institute of Safety Engineering,QingDao 266071,China;Institute of Chemical Engineering,DaLian University of Technology,DaLian 116024,China) |
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| Abstract: | Horizontal tube falling film was widely used in petroleum,chemical industry,desalination and other fields.The research on temperature evolution at low spray density has a great significance to broaden its application and illuminate its microscopic mechanism.In this paper,the infrared thermal tracer method was used to analyze the evolution regular of temperature on superhydrophilic surface at low spray density.The temperature partition effect and temperature increment regular was systemic analyzed.The local high-temperature zone on saddle liquid was first found.And the three-dimensional simulation was adopted to reveal the internal mechanism of the formation of local high-temperature structure by mixing effect. |
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| Keywords: | falling film superhydrophilic surface horizontal tube temperature distribution |
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