参数 | 典型单位 | 参数描述 | 参数的应用 |
Pmax | MPabar | 粉尘云爆炸压力(Maximum explosionpressure),系指在某一爆炸容器下测试所得的爆炸压力(20L球使用普遍) | 泄爆、通风、抑爆、隔离、部分惰化 |
align="center">(dP/dt)max | MPa/sbar/s | 粉尘云爆炸压力上升速率(Maximum rate of explosion pressurerise),系指在某一爆炸容器下测试所得的压力上升速率 |
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KSt | MPa·m/sbar·m/s | align="center">爆炸指数(Explosion index),压力上升速率和容器体积归一化处理后的结果 |
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MECLEL | g/m3 | 粉尘云小爆炸浓度(Minimum Explosion Concentration),也称:爆炸下限(LEL, LowerExplosion Limit) | 粉尘浓度控制 |
MIE | mJ | 粉尘云点火能量(Minimum Ignition Energy) | 消除点火源 |
MIT | ℃ | 粉尘云着火温度(Minimum Ignition Temperature of dust cloud) | 工业过程及表面温度的控制 |
LIT | 粉尘层着火温度(Minimum Ignition Temperature of dust layer) |
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LOC | 体积百分比 | 粉尘云极限氧浓度(Limiting Oxygen Concentration),粉尘云发生火焰传播所需的氧浓度 | 惰化处理 |
现行常用测试标准 |
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参数 | 标准号及名称 |
Pmax (dP/dt)maxKSt | GB/T 16426-1996 粉尘云爆炸压力和爆炸指数测定方法ISO 6184/1-1985 Determination ofexplosion indices of combustible dusts in airBS EN 14034-1:2004Determination of the maximum explosion pressure Pmax of dustcloudsBS EN 14034-2:2006 Determination of the maximum rate ofexplosion pressure (dp/dt)max of dust cloudsASTM E 1226-10 Standardtest method for explosibility of dust clouds |
MECLEL | GB/T 16425-1996 粉尘云爆炸下限浓度测定方法BS EN 14034-3:2006 Determination ofthe lower explosion limit LEL of dust cloudsASTM E 1515-07 Standardtest method for minimum explosible concentration of combustibledusts |
MIE | GB/T 16428-1996 粉尘云小着火能量测定方法IEC 61241-2-3-1994 Test methodsSection 3 Method for determining minimum ignition energy of dustair mixturesBS EN 13821-2002 Determination of minimum ignitionenergy of dust/air mixturesASTM E 2019-03(2007) Standard testmethod for minimum ignition energy of a dust cloud in air |
MIT | GB/T 16429-1996 粉尘云着火温度测定方法IEC 61241-2-1:1994 Test methods Section1 Methods for determining the minimum ignition temperatures ofdustBS EN 50281-2-1:1999 Electrical apparatus for use in thepresence of combustible dust-Part 2-1: Test methods-Methods ofdetermining minimum ignition temperaturesASTM E 1491-06 Standardtest method for minimum autoignition temperature of dustclouds |
LIT | GB/T 16430 1996 粉尘层着火温度测定方法IEC 61241-2-1:1994 Test methodsSection 1 Methods for determining the minimum ignition temperaturesof dustBS EN 50281-2-1:1999 Electrical apparatus for usein the presence of combustible dust-Part 2-1: Test methods-Methodsof determining minimum ignition temperaturesASTM E 2021-09 Standardtest method for hot surface ignition temperature of dustlayers |
LOC | BS EN 14034-3:2004 Determination of the limiting oxygenconcentration LOC of dust clouds |