[1]赵京宇①,饶国宁①,周健②,等.泄压与隔爆联用的粉尘爆炸压力特性[J].爆破器材,2021,50(06):43-47.[doi:10.3969/j.issn.1001-8352.2021.06.007]
　ZHAO Jingyu,RAO Guoning,ZHOU Jian,et al.Pressure Characteristics of Dust Explosion in Combination of Pressure Relief and Explosion Isolation[J].EXPLOSIVE MATERIALS,2021,50(06):43-47.[doi:10.3969/j.issn.1001-8352.2021.06.007]
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泄压与隔爆联用的粉尘爆炸压力特性()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
50
期数:
2021年06
页码:
43-47
栏目:
爆炸材料
出版日期:
2021-11-26

文章信息/Info

Title:
Pressure Characteristics of Dust Explosion in Combination of Pressure Relief and Explosion Isolation
文章编号:
5632
作者:
赵京宇①; 饶国宁①; 周健②; 马盼②; 肖秋平②
①南京理工大学化学与化工学院（江苏南京，210094）
②上海化工研究院有限公司（上海，200062）
Author(s):
ZHAO Jingyu①;  RAO Guoning①;  ZHOU Jian②;  MA Pan②;  XIAO Qiuping②
①School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②Shanghai Research Institute of Chemical Industry Co., Ltd. (Shanghai, 200062)
关键词:
粉尘爆炸; 泄压; 隔爆; 隔爆翻板阀; 最大爆炸超压
Keywords:
dust explosion;  pressure relief;  explosion isolation;  explosion isolation flap valve;  maximum explosion overpressure
分类号:
O389
DOI:
10.3969/j.issn.1001-8352.2021.06.007
文献标志码:
A
摘要:
作为目前市场上运用最广泛的隔爆产品，隔爆翻板阀一般与泄压板联用，以防止粉尘爆炸传播。为了探究粉尘爆炸时泄压与隔爆联用对容器内压力及隔爆效果的影响，进行了工业规模的粉尘爆炸实验。实验结果表明：由于隔爆翻板阀的影响，容器内部出现了二次峰值压力；随着隔爆翻板阀安装距离的增加，容器内两个峰值压力的时间间隔从28.2 ms增加到62.3 ms，且到达隔爆翻板阀前的峰值压力从0.067 MPa上升至0.101 MPa；泄压面积的增大会导致容器内部和隔爆翻板阀前端峰值压力降低，并可能导致隔爆失败。
Abstract:
As the most widely used explosion isolation product on the market, explosion isolation flap valves are generally used in conjunction with explosion venting plates to prevent the dust explosion propagation. In order to explore influence of the combined use of pressure relief and explosion isolation on pressure in the container and effect of explosion isolation, an industrial scale dust explosion experiment was carried out. The experimental results show that, due to the influence of explosion isolation flap valve, the internal pressure of the container has a secondary peak. With the increase of installation distance of the explosion isolation flap valve, time interval between the two pressure peaks in the container increases from 28.2 ms to 62.3 ms, and the pressure peak at the front end of the explosion isolation flap valve increases from 0.067 MPa to 0.101 MPa. The increase of the explosion venting area will lead to the decrease of the pressure peak inside the container and at the front end of the flap valve, and it might also cause explosion isolation failure.

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备注/Memo

备注/Memo:
收稿日期：2021-07-19
基金项目：上海市科技人才计划项目（19QB1402800）
第一作者：赵京宇（1997－），男，硕士，主要从事粉尘爆炸的研究。E-mail: 504965237@qq.com
通信作者：肖秋平（1984－），男，博士，高级工程师，主要从事粉尘爆炸的研究。E-mail: xqp@ghs.com
更新日期/Last Update: 2021-11-22