典型盐粉及盐溶液对甲烷爆燃火焰传播特性的影响研究

doi:10.11799/ce202203029

Abstract

Abstract: To explore the suppression rules of gas explosion with typical salt powder and salt solution. In this paper, we researched the influence of NaCl, KCl powder and NaCl solution on the deflagration flame propagation characteristics of methane/air premixed gas and built a stainless steel flame equipped.The results show that laying NaCl and KCl salt powder can inhibit the propagation of methane deflagration flame, and the deflagration pressure and average flame propagation speed are lower than those of the blank control group. When the laying surface density of NaCl and KCl salt powder is 150 mg/cm2, the average flame propagation velocity of the two salt powders attenuates the most. With the increase of the powder laying length, the inhibition and promotion of flame propagation are enhanced, but the degree of inhibition of KCl is more evident than that of NaCl. When laying out the NaCl solution, the deflagration flame pressure are below the blank group. The velocity showed a continuous decreasing trend; as the laying length of the solution increased, the average flame propagation velocity and the peak pressure of deflagration decreased gradually.

CLC Number:

TD712

References

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The Influence of Typical Salt Powder and Salt Solution on the Flame Propagation Characteristics of Methane Deflagration

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