HFO-1243zf爆燃特性实验研究

doi:10.11949/0438-1157.20221576

摘要/Abstract

摘要：

3,3,3-三氟丙烯（HFO-1243zf）是一种热物性适宜、环境友好的新一代人工合成类制冷剂。然而在规模化应用前，其基础燃爆特性必须被探明。参考ASHRE 34标准和ISO—817标准方法，分别实测了HFO-1243zf的可燃极限范围与高浓度下的燃烧速度。结果显示：HFO-1243zf的可燃极限范围为4.45%±0.05%~15.8%±0.2%（浓度），并且随环境温度的升高而扩大，随环境湿度的升高而略微缩减。HFO-1243zf的燃烧速度随等效比的增大呈先逐渐增大，在达到极大值后又逐渐减小的现象。

关键词: 制冷剂, 氟代烯烃, R1243zf, 可燃性, 燃烧速度

Abstract:

3,3,3-Trifluoropropene (HFO-1243zf) is a kind of synthetic environmentally friendly refrigerants that has applicable thermophysical property. The flammability of HFO-1243zf should be ascertained before extending its usage. The flammability limits and burning velocity of HFO-1243zf are tested as per the ASHRAE 34 and ISO— 817 standards, respectively. The tested flammability limit range is 4.45%±0.05%~15.8%±0.2% in volume fraction, which is enlarged with the increase of the environmental temperature but slightly lessened with the increase of relative humidity. The burning velocity of HFO-1243zf is increased by increasing the equivalence ratio, until which increases to a peak value and then gradually decreases on a further increase of the fuel concentration.

Key words: refrigerant, hydrofluoroolefin, R1243zf, flammability, burning velocity

中图分类号:

TK 16

吴曦, 区祖迪, 张鑫杰, 徐士鸣, 朱晓静. HFO-1243zf爆燃特性实验研究[J]. 化工学报, 2023, 74(S1): 346-352.

Xi WU, Zudi OU, Xinjie ZHANG, Shiming XU, Xiaojing ZHU. Experimental study on the flammability of HFO-1243zf[J]. CIESC Journal, 2023, 74(S1): 346-352.

图/表 7

图1 四种阻燃剂对HFO-1243zf可燃性的抑制效果[23]

Fig.1 Inhibition effect of four retardants on HFO-1243zf[23]

图2 可燃极限测试系统

Fig.2 Flammability concentration limit test system

图3 HFO-1243zf燃烧速度测试系统

Fig.3 HFO-1243zf flame propagation velocity test system

图4 可燃极限范围随环境温度的变化关系

Fig.4 Variation of flammability limits with temperature

图5 可燃极限范围随环境湿度的变化关系

Fig.5 Variation of flammability limits with humidity

图6 HFO-1243zf的火焰传播图像(12.4%)

Fig.6 Flame propagation image of HFO-1243zf at 12.4%

图7 HFO-1243zf不同等效比时的燃烧速度

Fig.7 Burning velocity at different equivalent ratios of HFO-1243zf

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