Article(id=1320165855846060334, tenantId=1146029695717560320, journalId=1306274063662022745, issueId=1320165840046117035, articleNumber=null, orderNo=null, doi=10.20168/j.1009-0029.2026.05.0009.05, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1760284800000, receivedDateStr=2025-10-13, revisedDate=1765814400000, revisedDateStr=2025-12-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1792681667528, onlineDateStr=2026-10-22, pubDate=1778774400000, pubDateStr=2026-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792681667528, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792681667528, creator=13701087609, updateTime=1792681667528, updator=13701087609, issue=Issue{id=1320165840046117035, tenantId=1146029695717560320, journalId=1306274063662022745, year='2026', volume='45', issue='5', pageStart='1', pageEnd='148', issueExtLink='null', onlineDate='null', pubDate='1778774400000', pubDateStr='2026-05-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792681663762, creator='13701087609', updateTime=1792681663762, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=9, endPage=13, ext={EN=ArticleExt(id=1320165856076747055, articleId=1320165855846060334, tenantId=1146029695717560320, journalId=1306274063662022745, language=EN, title=Research on the mechanism of KHCO
3 in suppressing two-phase explosion of polypropylene/propylene, columnId=1307033097116086459, journalTitle=Fire Science and Technology, columnName=Fire theory study, runingTitle=null, highlight=null, articleAbstract=
To investigate the inhibition mechanism of KHCO₃ inhibitor on polypropylene/propylene two-phase explosion, the inhibition mechanism was analyzed from both physical and chemical aspects by examining flame propagation characteristics, pyrolysis characteristics and chemical reaction kinetic mechanism, revealing the interruption of the explosion reaction process. The results show that KHCO₃ exhibits an inhibitory effect on polypropylene/propylene two-phase explosions with different concentration ratios. KHCO₃ decomposes under heating and absorbs a large amount of heat, and the carbonate produced by decomposition adheres to the surface of PP dust, raising the melting point of PP dust from 160 ℃ to 222 ℃. Meanwhile, the maximum consumption rate of ·H by the reaction KOH + H K + H₂O reaches the highest value of -0.007 45 mol/(cm³·s). The maximum consumption rate of ·OH by the reaction KOH + OH KO + H₂O reaches the highest value of -0.011 34 mol/(cm³·s). At high temperatures, KHCO₃ generates gaseous K and KOH at the flame front, which continuously scavenge ·H and ·OH through the K KOH cycle and convert them into H₂O, thereby achieving explosion suppression.
, authors=Tingwei Chen
1, Yong Liu
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3抑制聚丙烯/丙烯两相爆炸机理研究, columnId=1307033099062243517, journalTitle=消防科学与技术, columnName=消防理论研究, runingTitle=null, highlight=null, articleAbstract=
为探究KHCO3抑制剂对聚丙烯/丙烯两相爆炸抑制机理,通过火焰传播特性、热解特性以及化学反应动力学机理分析,从物理作用和化学作用2个方面对抑制机理进行分析,揭示了阻断爆炸反应的进程。结果表明,KHCO3对不同浓度配比的聚丙烯/丙烯两相爆炸均具有抑制作用。KHCO3受热分解吸收大量的热量,分解产生的碳酸盐会附着在PP粉尘表面,使得PP粉尘熔点从160 ℃升高至222 ℃。同时,KOH+H K+H2O反应消耗·H的最大速率值最高,为-0.007 45 mol/(cm3·s)。反应KOH+OH KO+H2O消耗·OH的最大速率值最高,为-0.011 34 mol/(cm3·s)。高温下KHCO₃在火焰前缘生成气态 K 与 KOH,通过K KOH 循环持续捕获·H 与·OH,转化为 H₂O,实现爆炸抑制。
, authors=谌庭苇
1, 刘勇
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谌庭苇,湖南科技大学在读硕士研究生,主要从事抑制粉尘爆炸方面的研究,湖南省湘潭市雨湖区北二环路,411201。
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1School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan Hunan 411201, China), AuthorCompanyExt(id=1320165857939018049, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, companyId=1320165857922240831, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1湖南科技大学 资源环境与安全工程学院,湖南 湘潭 411201)]), AuthorCompany(id=1320165857997738306, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, xref=2, ext=[AuthorCompanyExt(id=1320165858006126915, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, companyId=1320165857997738306, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Hunan Engineering Research Center for Fire and Explosion Prevention Materials and Equipment, Xiangtan Hunan 411201, China), AuthorCompanyExt(id=1320165858010321220, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, companyId=1320165857997738306, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2地下空间防火防爆材料与装备湖南省工程研究中心,湖南 湘潭 411201)]), AuthorCompany(id=1320165858081624389, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, xref=3, ext=[AuthorCompanyExt(id=1320165858090012998, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, companyId=1320165858081624389, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3Hunan Provincial Key Laboratory of Fire and Explosion Control and Emergency Technology, Xiangtan Hunan 411201, China), AuthorCompanyExt(id=1320165858098401607, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, companyId=1320165858081624389, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3火灾爆炸防控与应急技术湖南省普通高等学校重点实验室,湖南 湘潭 411201)])], figs=[ArticleFig(id=1320165859524464990, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.1, caption=
Particle size distribution and SEM image ofKHCO₃ powder, figureFileSmall=FiEN6zm6JI52u0whYlX2xA==, figureFileBig=8wGejE8e8DWGz8xeUikBIA==, tableContent=null), ArticleFig(id=1320165859583185247, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图1, caption=
KHCO3粉末的粒度分布和SEM图像, figureFileSmall=FiEN6zm6JI52u0whYlX2xA==, figureFileBig=8wGejE8e8DWGz8xeUikBIA==, tableContent=null), ArticleFig(id=1320165859809677664, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.2, caption=
Schematic diagram of gas-particle two-phase explosion test system, figureFileSmall=p3bxZz8HbhGO9lx5NPZ50A==, figureFileBig=3qY6n4pOMneTUvoPYX+19g==, tableContent=null), ArticleFig(id=1320165859889369441, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图2, caption=
气粉两相爆炸试验系统示意图, figureFileSmall=p3bxZz8HbhGO9lx5NPZ50A==, figureFileBig=3qY6n4pOMneTUvoPYX+19g==, tableContent=null), ArticleFig(id=1320165859973255522, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.3, caption=
Propagation process of polypropylene/propylene two-phase explosion flame inhibited by KHCO₃, figureFileSmall=dVrb7rDjO6oYrWpBthHLNw==, figureFileBig=ErhR3NfTKTOfdGHGpBWYGg==, tableContent=null), ArticleFig(id=1320165860065530211, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图3, caption=
KHCO3抑制聚丙烯/丙烯两相爆炸火焰传播过程, figureFileSmall=dVrb7rDjO6oYrWpBthHLNw==, figureFileBig=ErhR3NfTKTOfdGHGpBWYGg==, tableContent=null), ArticleFig(id=1320165860157804900, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.4, caption=
Propagation rate of polypropylene/propylene two-phase explosion flame inhibited by KHCO₃, figureFileSmall=wAfpe2OJXetzZQgo7+hO4w==, figureFileBig=hd3BHTfotITY0QqS/cZg7Q==, tableContent=null), ArticleFig(id=1320165860258468197, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图4, caption=
KHCO3抑制聚丙烯/丙烯两相爆炸火焰传播速度, figureFileSmall=wAfpe2OJXetzZQgo7+hO4w==, figureFileBig=hd3BHTfotITY0QqS/cZg7Q==, tableContent=null), ArticleFig(id=1320165860333965670, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.5, caption=
Instantaneous flame temperature of polypropylene/propylene two-phase hybrid explosion inhibited by KHCO3, figureFileSmall=as0E+tqJOHk37swK46kuAw==, figureFileBig=pfsHNDqpKia9pN0I1oX5Og==, tableContent=null), ArticleFig(id=1320165860426240359, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图5, caption=
KHCO3抑制聚丙烯/丙烯两相爆炸火焰传播瞬时温度, figureFileSmall=as0E+tqJOHk37swK46kuAw==, figureFileBig=pfsHNDqpKia9pN0I1oX5Og==, tableContent=null), ArticleFig(id=1320165860489154920, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.6, caption=
Pyrolysis characteristic curves of PP, KHCO3,and PP/KHCO3, figureFileSmall=H6LM+YHQNDh9RCiL3xICoA==, figureFileBig=bF12/lGKrcarhR4u7/tvDw==, tableContent=null), ArticleFig(id=1320165860573041001, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图6, caption=
PP、KHCO3和PP/KHCO3的热解特性曲线, figureFileSmall=H6LM+YHQNDh9RCiL3xICoA==, figureFileBig=bF12/lGKrcarhR4u7/tvDw==, tableContent=null), ArticleFig(id=1320165860656927082, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Fig.7, caption=
Influence of KHCO3 on the maximum reactionrate of ·H and ·OH, figureFileSmall=wdKNMwWhcUFxl+tj5/bcOw==, figureFileBig=gJsKDuCaM9wai4KgEFbvbg==, tableContent=null), ArticleFig(id=1320165860736618859, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=图7, caption=
KHCO3对·H和·OH最大反应生成速率的影响, figureFileSmall=wdKNMwWhcUFxl+tj5/bcOw==, figureFileBig=gJsKDuCaM9wai4KgEFbvbg==, tableContent=null), ArticleFig(id=1320165860799533420, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=EN, label=Table 1, caption=
Experimental conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 1 | 2 | 3 | 4 | 5 | 6 |
|---|
| 丙烯体积分数 | 0% | 0% | 2% | 2% | 4% | 4% |
| KHCO₃质量浓度/g/m3 | 100 | 200 | 100 | 300 | 100 | 600 |
), ArticleFig(id=1320165860875030893, tenantId=1146029695717560320, journalId=1306274063662022745, articleId=1320165855846060334, language=CN, label=表1, caption=
试验工况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 1 | 2 | 3 | 4 | 5 | 6 |
|---|
| 丙烯体积分数 | 0% | 0% | 2% | 2% | 4% | 4% |
| KHCO₃质量浓度/g/m3 | 100 | 200 | 100 | 300 | 100 | 600 |
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