The explosion characteristics of diethyl ether-Al mixtures under different ambient pressure (57.4–101.3 kPa), temperature (263–333 K), and relative humidity (48.3–90%) were investigated in a 20 L explosion vessel. The explosion pressures and lower flammability mass concentration limits of diethyl ether-Al mixture under different ambient conditions were obtained after a series of experiments. The components of explosion exhaust gas and the morphologies of solid residues were examined by a gas detector and a scanning electron microscope, respectively. The results showed that the ambient pressure had a greater influence on the explosion pressure of diethyl ether-Al mixtures than ambient temperature and relative humidity, while the ambient temperature had a greater influence on the lower flammability mass concentration limit than ambient pressure and relative humidity. The explosion exhaust gases were mainly composed of CO and CO₂ with a small amount of NO and NO₂, and the solid residues were mainly composed of Al₂O₃ and unreacted Al. The effect mechanism of different ambient conditions on the explosion of diethyl ether-Al mixture was discussed based on these results.

在20 L爆炸容器中研究了在不同环境压力（57.4–101.3 kPa），温度（263–333 K）和相对湿度（48.3–90％）下二乙醚-铝混合物的爆炸特性。经过一系列实验，获得了不同环境条件下二乙醚-铝混合物的爆炸压力和较低的可燃质量浓度限值。通过气体检测仪和扫描电子显微镜分别检查了爆炸废气的成分和固体残留物的形态。结果表明，与环境温度和相对湿度相比，环境压力对乙醚-Al混合物爆炸压力的影响更大，环境温度对可燃物质浓度下限的影响大于环境压力和相对湿度。爆炸废气主要由CO和CO组成₂为少量的NO和NO ₂，固体残留物主要由Al ₂ O ₃和未反应的Al组成。基于这些结果，探讨了不同环境条件对二乙醚-铝混合物爆炸的影响机理。