不同磷酸氢盐作用下的乙烯抑爆特性及机制

doi:10.16265/j.cnki.issn1003-3033.2022.05.1564

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (5): 48-54.doi: 10.16265/j.cnki.issn1003-3033.2022.05.1564

不同磷酸氢盐作用下的乙烯抑爆特性及机制

王燕¹^,²^,³(), 李忠¹^,²^,³, 张一民¹^,²^,³, 王阳¹^,²^,³, 杨晶晶¹^,²^,³, 纪文涛¹^,²^,³

¹ 河南理工大学安全科学与工程学院,河南焦作 454000
² 河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地,河南焦作 454000
³ 煤炭安全生产与清洁利用省部共建协同创新中心,河南焦作 454000

收稿日期:2022-01-28 修回日期:2022-03-07 出版日期:2022-08-17 发布日期:2022-11-28
作者简介:
王燕 (1982—),女,河南周口人,博士,教授,主要从事气体与粉尘爆炸防治技术研究。E-mail: yanwang@hpu.edu.cn。
纪文涛, 讲师
基金资助:
国家自然科学基金资助(51874120); 国家自然科学基金资助(51904094); 中国博士后科学基金资助(2020M672228); 河南省重点研发与推广专项(科技攻关)资金项目(202102310292); 河南省优秀青年科学基金资助(212300410042)

Suppression characteristics and mechanism of different hydrogen phosphates on ethylene explosion

WANG Yan¹^,²^,³(), LI Zhong¹^,²^,³, ZHANG Yimin¹^,²^,³, WANG Yang¹^,²^,³, YANG Jingjing¹^,²^,³, JI Wentao¹^,²^,³

¹ College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China
² State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, Jiaozuo Henan 454000, China
³ Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo Henan 454000, China

Received:2022-01-28 Revised:2022-03-07 Online:2022-08-17 Published:2022-11-28

摘要/Abstract

摘要：

为有效减少乙烯爆炸事故的危害,选用磷酸二氢铵、磷酸二氢钾、磷酸二氢钙3种磷酸氢盐,使用20 L球形爆炸测试系统试验研究不同质量浓度磷酸氢盐作用下乙烯的最大爆炸压力、爆炸压力上升速率和爆炸压力峰值到达时间,并基于上述参数随磷酸氢盐质量浓度变化特征分析磷酸氢盐对乙烯爆炸的抑制特性和机制。结果表明:3种磷酸氢盐对乙烯爆炸均有一定抑制作用,最佳抑爆临界质量浓度均为0.4 g/L,高于或低于该质量浓度,抑爆效果均有所减弱;相同质量浓度条件下磷酸二氢钾的抑爆效果最佳,磷酸二氢钙次之,磷酸二氢铵最差。

关键词: 磷酸氢盐, 乙烯, 抑爆特性, 抑爆机制, 质量浓度

Abstract:

In order to effectively reduce harms caused by ethylene explosion, three different hydrogen phosphates, namely ammonium dihydrogen phosphate, potassium dihydrogen phosphate, and calcium dihydrogen phosphate, were selected, and maximum explosion pressure as well as its rise rate and peak value reach time of ethylene under different concentration of hydrogen phosphates were tested on a 20 L spherical explosion test system. Then, inhibitory characteristics and mechanism of hydrogen phosphates on ethylene explosion were analyzed based on the change features of above mentioned parameters along with concentration variance. The results show that all three kinds of hydrogen phosphates have a certain inhibitory effect on ethylene explosion, and their optimal critical concentration for suppression is all 0.4 g/L, which means the suppression effect will be weakened either higher or lower than the value. When at same mass concentration, potassium dihydrogen phosphate has the best suppression effect, followed by calcium dihydrogen phosphate, and then ammonium dihydrogen phosphate.

Key words: hydrogen phosphate, ethylene, explosion suppression characteristic, explosion suppression mechanism, mass concentration

王燕, 李忠, 张一民, 王阳, 杨晶晶, 纪文涛. 不同磷酸氢盐作用下的乙烯抑爆特性及机制[J]. 中国安全科学学报, 2022, 32(5): 48-54.

WANG Yan, LI Zhong, ZHANG Yimin, WANG Yang, YANG Jingjing, JI Wentao. Suppression characteristics and mechanism of different hydrogen phosphates on ethylene explosion[J]. China Safety Science Journal, 2022, 32(5): 48-54.

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质量浓度/ (g·L^-1)	KH₂PO₄	Ca(H₂PO₄)₂	NH₄H₂PO₄
0	0.100	0.100	0.100
0.10	0.103	0.101	0.101
0.15	0.107	0.106	0.103
0.20	0.116	0.114	0.110
0.25	0.122	0.116	0.115
0.30	0.128	0.124	0.119
0.35	0.140	0.135	0.128
0.40	0.141	0.139	0.133
0.45	0.139	0.133	0.130
0.50	0.136	0.132	0.129

不同磷酸氢盐作用下的乙烯抑爆特性及机制

Suppression characteristics and mechanism of different hydrogen phosphates on ethylene explosion

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