双腔冻结管温度场的试验与数值分析

孙强; 杨立云; 陈骏; 王千星; 刘巨

双腔冻结管温度场的试验与数值分析

中国矿业大学(北京)力学与建筑工程学院,北京100083

基金项目: 国家自然科学基金（51274203）

详细信息

作者简介:
孙强(1962—),男,浙江常山人,副教授,博士,从事矿山建设方面的研究。

中图分类号: TD265
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出版历程
- 收稿日期: 2016-04-21
- 刊出日期: 2016-10-29

Experimental and numerical study on temperature field by freezing pipe of double chambers

School of Mechanics and Civil Engineering,China University of Mining and Technology,Beijing100083,China

摘要

摘要: 基于控制冻结管径向冷能传播,提出了一种新型冻结器结构——双腔冻结器.采用模型试验和数值模拟,得到了新型冻结器的温度场时空分布特征,分析了新型冻结器的适用性.结果表明:在新型冻结管1.5圈径区域内,其温度场云图呈马蹄形,液氮腔侧较空气腔侧的温度变化剧烈,新型冻结器有效地改变了冷量的传递,具有明显的控制冻结效果;在新型冻结器1.5圈径区域外,其温度场云图近似呈圆形,新型冻结器在较大空间范围内控制作用不明显.最后,研究指出了新型冻结器——双腔冻结器在短时间内的控制冻结作用,可应用于市政抢险工程中.
- 双腔冻结器 /
- 液氮 /
- 温度场 /
- 模型试验 /
- 数值模拟
Abstract: In order to control the horizontal energy transfer of freezing pipe, a new type freezing pipe with two chambers was set up. The temperature field of this new freezing pipe was analyzed by model test and numerical simulation. The results show that the temperature field shape inside the 1.5 diameter of the new freezing pipe was Ushape and there was a remarkable temperature difference between the side of liquid nitrogen chamber and air chamber, which proved that the new freezing pipe would change the transfer of cool energy and have the effective capability of control freezing. On the other side, the temperature field shape outside the 1.5 diameter of the freezing pipe was circleshape, which indicated the new freezing pipe had less effective efficiency on the control freezing when it is used in a large space. In conclusion，the new freezing pipe can control the freezing effectively during short time period, and can be used in municipal rescue engineering.
- freezing pipe of double chambers /
- liquid nitrogen /
- temperature field /
- model test /
- numerical simulation

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参考文献(13)

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双腔冻结管温度场的试验与数值分析

作者简介:
孙强(1962—),男,浙江常山人,副教授,博士,从事矿山建设方面的研究。

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Experimental and numerical study on temperature field by freezing pipe of double chambers

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双腔冻结管温度场的试验与数值分析

作者简介: 孙强(1962—),男,浙江常山人,副教授,博士,从事矿山建设方面的研究。

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出版历程

Experimental and numerical study on temperature field by freezing pipe of double chambers

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出版历程

目录

作者简介:
孙强(1962—),男,浙江常山人,副教授,博士,从事矿山建设方面的研究。