资源描述
重要的粉尘爆炸测试参数有哪些?
参数
典型单位
参数描述
参数的应用
Pmax
MPa
bar
粉尘云最大爆炸压力(Maximum explosion pressure),系指在某一爆炸容器下测试所得的最大爆炸压力(20L球使用普遍)
泄爆、通风、抑爆、隔离、部分惰化
max
MPa/s
bar/s
粉尘云最大爆炸压力上升速率(Maximum rate of explosion pressure rise),系指在某一爆炸容器下测试所得的最大压力上升速率
KSt
MPa·m/s
bar·m/s
align="center">爆炸指数(Explosion index),最大压力上升速率和容器体积归一化处理后的结果
MEC
LEL
g/m3
粉尘云最小爆炸浓度(Minimum Explosion Concentration),也称:爆炸下限(LEL, Lower Explosion Limit)
粉尘浓度控制
MIE
mJ
粉尘云最小点火能量(Minimum Ignition Energy)
消除点火源
MIT
℃
粉尘云最低着火温度(Minimum Ignition Temperature of dust cloud)
工业过程及表面温度的控制
LIT
℃
粉尘层最低着火温度(Minimum Ignition Temperature of dust layer)
工业过程及表面温度的控制
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最低氧浓度
惰化处理
现行常用测试标准
参数
标准号及名称
Pmax (dP/dt)max
KSt
GB/T 16426-1996 粉尘云最大爆炸压力和爆炸指数测定方法
ISO 6184/1-1985 Determination of explosion indices of combustible dusts in air
BS EN 14034-1:2004 Determination of the maximum explosion pressure Pmax of dust clouds
BS EN 14034-2:2006 Determination of the maximum rate of explosion pressure (dp/dt)max of dust clouds
ASTM E 1226-10 Standard test method for explosibility of dust clouds
MEC
LEL
GB/T 16425-1996 粉尘云爆炸下限浓度测定方法
BS EN 14034-3:2006 Determination of the lower explosion limit LEL of dust clouds
ASTM E 1515-07 Standard test method for minimum explosible concentration of combustible dusts
MIE
GB/T 16428-1996 粉尘云最小着火能量测定方法
IEC 61241-2-3-1994 Test methods Section 3 Method for determining minimum ignition energy of dust air mixtures
BS EN 13821-2002 Determination of minimum ignition energy of dust/air mixtures
ASTM E 2019-03(2007) Standard test method for minimum ignition energy of a dust cloud in air
MIT
GB/T 16429-1996 粉尘云最低着火温度测定方法
IEC 61241-2-1:1994 Test methods Section 1 Methods for determining the minimum ignition temperatures of dust
BS EN 50281-2-1:1999 Electrical apparatus for use in the presence of combustible dust-Part 2-1: Test methods-Methods of determining minimum ignition temperatures
ASTM E 1491-06 Standard test method for minimum autoignition temperature of dust clouds
LIT
GB/T 16430 1996 粉尘层最低着火温度测定方法
IEC 61241-2-1:1994 Test methods Section 1 Methods for determining the minimum ignition temperatures of dust
BS EN 50281-2-1:1999 Electrical apparatus for use in the presence of combustible dust-Part 2-1: Test methods-Methods of determining minimum ignition temperatures
ASTM E 2021-09 Standard test method for hot surface ignition temperature of dust layers
LOC
BS EN 14034-3:2004 Determination of the limiting oxygen concentration LOC of dust clouds
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