带有内部热源的乳化炸药基质在环境压力和气泡含量耦合作用下的热安全研究

IF 2.8 4区 工程技术 Q2 ENGINEERING, CHEMICAL Processes Pub Date : 2024-08-10 DOI:10.3390/pr12081677
Yi-Bo Zhang, Qian Liu, Xiao-Cen Shi
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引用次数: 0

摘要

乳化炸药因其在不同环境压力下的爆炸燃烧特性和起爆性能而成为各种研究的热门话题。本研究以点火能量为表征,对乳化基质的热安全性进行了研究。本研究建立了乳化基质最小点火能量测试实验系统。该系统利用电热丝模拟了乳化基质内部热点的出现。通过在乳化基质中添加膨胀珍珠岩添加剂,研究了气泡对乳化基质热安全性的影响。本研究采用正交实验法研究了气泡和环境压力耦合作用下乳化基质最小点火能的变化趋势。研究了在不同热点温度下这两个因素对乳化基质热安全性的影响。在 1 个大气压、2 个大气压和 3 个大气压的压力环境下,对含有 0%、1.5% 和 3% 膨胀珍珠岩的乳液基质进行了耦合分析实验。直观分析和方差分析显示,在 1 atm 和 2 atm 压力下,乳液基质的临界热点温度随着气泡含量的增加而显著降低。然而,在 3 个大气压的压力下,乳液基质中的气泡含量对其临界热点温度没有明显影响。结果表明,乳化基质的热安全性随着膨胀珍珠岩含量和环境压力的增加而降低,且环境压力的影响比气泡含量的影响更为显著。本文的研究内容可作为安全乳化基质的参考,也可作为建立生产线开发新设备的实验依据。
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Thermal Safety Study of Emulsion Explosive Matrix under the Coupled Effects of Environmental Pressure and Bubble Content with Internal Heat Source
Emulsion explosives have become a hot topic in various studies due to their explosive combustion characteristics and detonation performance under different environmental pressures. The thermal safety of an emulsified matrix was studied with ignition energy as the characterization. A minimum ignition energy test experimental system for emulsion matrices was established in this research. The system simulated the occurrence of hot spots inside emulsion matrices using an electric heating wire. The effect of bubbles on the thermal safety of the emulsified matrix was studied by adding expanded perlite additive to the emulsified matrix. This study investigated the variation trend in the minimum ignition energy of the emulsion matrix under the coupled effect of bubbles and ambient pressure using the orthogonal experimental method. The impacts of two factors on the thermal safety of the emulsion matrix were studied at different hot-spot temperatures. Coupled analysis experiments were conducted on emulsion matrices containing 0%, 1.5%, and 3% expanded perlite under pressure environments of 1 atm, 2 atm, and 3 atm. The critical hot-spot temperature of the emulsion matrix significantly decreases with increasing bubble content at 1 atm and 2 atm pressures, as revealed by intuitive analysis and analysis of variance. However, at 3 atm of pressure, the bubble content in the emulsion matrix has no significant effect on its critical hot-spot temperature. The results show that the thermal safety of the emulsified matrix decreases with the increase in the content of expanded perlite and environmental pressure, and the influence of environmental pressure is more significant than that of the bubble content. This paper’s research content serves as a reference for a safe emulsified matrix and as an experimental basis for establishing a production line for developing new equipment.
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来源期刊
Processes
Processes Chemical Engineering-Bioengineering
CiteScore
5.10
自引率
11.40%
发文量
2239
审稿时长
14.11 days
期刊介绍: Processes (ISSN 2227-9717) provides an advanced forum for process related research in chemistry, biology and allied engineering fields. The journal publishes regular research papers, communications, letters, short notes and reviews. Our aim is to encourage researchers to publish their experimental, theoretical and computational results in as much detail as necessary. There is no restriction on paper length or number of figures and tables.
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