二氧化碳爆破射流温度场演化规律实验研究

倪昊 杨仁树 谭卓英 丁晨曦 林海 王渝 吴浩天

倪昊, 杨仁树, 谭卓英, 丁晨曦, 林海, 王渝, 吴浩天. 二氧化碳爆破射流温度场演化规律实验研究[J]. 爆炸与冲击, 2023, 43(12): 123902. doi: 10.11883/bzycj-2023-0227
引用本文: 倪昊, 杨仁树, 谭卓英, 丁晨曦, 林海, 王渝, 吴浩天. 二氧化碳爆破射流温度场演化规律实验研究[J]. 爆炸与冲击, 2023, 43(12): 123902. doi: 10.11883/bzycj-2023-0227
NI Hao, YANG Renshu, TAN Zhuoying, DING Chenxi, LIN Hai, WANG Yu, WU Haotian. An experimental study on temperature field evolution of carbon dioxide blasting jets[J]. Explosion And Shock Waves, 2023, 43(12): 123902. doi: 10.11883/bzycj-2023-0227
Citation: NI Hao, YANG Renshu, TAN Zhuoying, DING Chenxi, LIN Hai, WANG Yu, WU Haotian. An experimental study on temperature field evolution of carbon dioxide blasting jets[J]. Explosion And Shock Waves, 2023, 43(12): 123902. doi: 10.11883/bzycj-2023-0227

二氧化碳爆破射流温度场演化规律实验研究

doi: 10.11883/bzycj-2023-0227
基金项目: 国家自然科学基金(51934001)
详细信息
    作者简介:

    倪 昊(1986- ),男,博士研究生,490614699@qq.com

    通讯作者:

    杨仁树(1963- ),男,博士,教授,博士生导师,yangrsustb@163.com

  • 中图分类号: O389

An experimental study on temperature field evolution of carbon dioxide blasting jets

  • 摘要: 为了研究二氧化碳爆破射流温度场的演化规律,构建了二氧化碳爆破红外热成像实验系统,开展了二氧化碳爆破实验,分析了二氧化碳爆破射流的空间发展和温度演变过程。研究结果表明:在出现超温现象之前,二氧化碳射流的温度梯度分别为外圈最高、内圈稍低,核心区域温度最低;当出现超温现象时,射流的温度梯度分别为外圈最低、内圈稍高,核心区域温度最高;射流周围的环境温度呈现先降低,后升高的现象。初始泄能压力越高,二氧化碳爆破射流的温度峰值越高,最高温度达到了133.7 ℃,到达温度峰值所需的时间越长;初始泄能压力越低,温度谷值越低,最低温度为−3.4 ℃,到达温度谷值所需的时间越短;射流温度的峰值基本出现在二氧化碳爆破器泄能的初始阶段,随后小幅度上升,再跌入谷值。射流升温的主要阶段在管内,二氧化碳爆破射流的温度总体呈现先上升后下降的趋势。
  • 图  1  二氧化碳压力-温度相图

    Figure  1.  Pressure-temperature phase diagram of carbon dioxide

    图  2  二氧化碳爆破器结构

    Figure  2.  Structure of a carbon dioxide blaster

    图  3  二氧化碳爆破射流红外热成像系统

    Figure  3.  Carbon dioxide blasting jet infrared shooting system

    图  4  pc=200 MPa时的二氧化碳爆破射流温度场云图

    Figure  4.  Cloud images of temperature field of carbon dioxide blasting jet at pc=200 MPa

    图  5  pc=250 MPa时的二氧化碳爆破射流温度场云图

    Figure  5.  Cloud images of temperature field of carbon dioxide blasting jet at pc=250 MPa

    图  6  pc=300 MPa时的二氧化碳爆破射流温度场云图

    Figure  6.  Cloud images of temperature field of carbon dioxide blasting jet at pc=300 MPa

    图  7  pc=200 MPa时二氧化碳爆破射流的温度-时间曲线

    Figure  7.  Temperature-time plots of the carbon dioxide blasting jet at pc=200 MPa

    图  8  pc=250 MPa时二氧化碳爆破射流的温度-时间曲线

    Figure  8.  Temperature-time plots of the carbon dioxide blasting jet at pc=200 MPa

    图  9  pc=300 MPa时二氧化碳爆破射流温度-时间曲线

    Figure  9.  Temperature-time plots of the carbon dioxide blasting jet at pc=300 MPa

    表  1  实验参数

    Table  1.   Experimental parameters

    实验
    二氧化碳爆破器
    爆破片
    材质
    爆破片厚度/
    mm
    爆破片抗剪
    强度/MPa
    额定液态二氧化碳
    充装压力/MPa
    额定液态二氧化
    碳充装量/g
    额定发热
    剂量/g
    1 MZL300-95/1300 Q235 4 200 10 1500 400
    2 MZL300-95/1300 Q235 5 250 10 1500 400
    3 MZL300-95/1300 Q235 6 300 10 1500 400
    下载: 导出CSV

    表  2  实验结果

    Table  2.   Experimental results

    实验 爆破片抗剪
    强度/MPa
    环境温度/℃ 峰值温度/℃ 峰值温度与环境
    温度之差/℃
    到达峰值温度
    的时间/ms
    谷值温度/
    谷值温度与峰值
    温度之差/℃
    到达谷值温度
    的时间/ms
    1 200 30.1 41.3 11.2 80.1 −3.4 44.7 129.5
    2 250 21.4 53.5 32.1 89.3 2.1 51.4 134.2
    3 300 20.5 133.7 113.2 97.4 10.2 123.5 133.7
    下载: 导出CSV
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  • 收稿日期:  2023-06-29
  • 修回日期:  2023-10-06
  • 网络出版日期:  2023-10-08
  • 刊出日期:  2023-12-12

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