http://www.esafety.cn/blog/wll/66030/index.html

附件1:危险化学品重大危险源分级方法

作者[孙锡云] 发表于[2011-10-14 23:36:00]

附件1

危险化学品重大危险源分级方法

 

一、分级指标

采用单元内各种危险化学品实际存在(在线)量与其在《危险化学品重大危险源辨识》(GB18218)中规定的临界量比值,经校正系数校正后的比值之和R作为分级指标。

二、R的计算方法

式中:

q1,q2,,qn —每种危险化学品实际存在(在线)量(单位:吨);

Q1,Q2,,Qn —与各危险化学品相对应的临界量(单位:吨);

β1β2,βn— 与各危险化学品相对应的校正系数;

α— 该危险化学品重大危险源厂区外暴露人员的校正系数。

三、校正系数β的取值

根据单元内危险化学品的类别不同,设定校正系数β值,见表1和表2


 

1 校正系数β取值表

危险化学品

类别

毒性气体

爆炸品

易燃气体

其他类

危险化学品

β

见表2

2

1.5

1

注:危险化学品类别依据《危险货物品名表》中分类标准确定。

 

2 常见毒性气体校正系数β取值表

毒性气体名称

一氧

化碳

二氧

化硫

环氧

乙烷

氯化氢

溴甲烷

β

2

2

2

2

3

3

4

毒性气体名称

硫化氢

氟化氢

二氧

化氮

氰化氢

碳酰氯

磷化氢

异氰酸甲酯

β

5

5

10

10

20

20

20

注:未在表2中列出的有毒气体可按β=2取值,剧毒气体可按β=4取值。

四、校正系数α的取值

根据重大危险源的厂区边界向外扩展500范围内常住人口数量,设定厂外暴露人员校正系数α值,见表3


 

3 校正系数α取值表

厂外可能暴露人员数量

α

100人以上

2.0

50人~99

1.5

30人~49

1.2

129

1.0

0

0.5

五、分级标准

根据计算出来的R值,按表4确定危险化学品重大危险源的级别。

4 危险化学品重大危险源级别和R值的对应关系

危险化学品重大危险源级别

R

一级

R≥100

二级

100>R≥50

三级

50>R≥10

四级

R<10

 

  • 圈子:注安之家 
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    原创

    作者[原创(游客)] 发表于[2016-9-30 10:09:28]
    原创(游客)http://rywydx.lofter.com/post/1e6a68e3_c80cc12 http://rywkdks.lofter.com/post/1e698063_c7f84af http://rywydx.lofter.com/post/1e6a68e3_c80c57b http://rywkdks.lofter.com/post/1e698063_c7f69e2 http://njryw168.lofter.com/post/1e6983e5_c7e8a90 http://njryw168.lofter.com/post/1e6983e5_c7ee434 http://rywydx.lofter.com/post/1e6a68e3_c80dd51 http://rywywj.lofter.com/post/1e6a80c3_c822c7f http://njryw168.lofter.com/post/1e6983e5_c7f06d4 http://rywywj.lofter.com/post/1e6a80c3_c82440a

    原创

    作者[原创(游客)] 发表于[2016-9-28 15:35:52]
    原创(游客)http://seogsywj.lofter.com/post/1e634756_c6ddffa http://wztgywj.lofter.com/post/1e65f473_c6eeacb http://ywjseo.lofter.com/post/1e634752_c652d99 http://ywjseo.lofter.com/post/1e634752_c64ff15 http://ywjseo.lofter.com/post/1e634752_c651b5e http://ywjseo.lofter.com/post/1e634752_c6518fd http://seogsywj.lofter.com/post/1e634756_c6dea10 http://seogsywj.lofter.com/post/1e634756_c6de8e9 http://bjseoywj.lofter.com/post/1e66bf3e_c70fcea http://njseoywj.lofter.com/post/1e634754_c69a3ed

    原创

    作者[原创(游客)] 发表于[2016-9-6 16:02:39]
    原创(游客)http://njryw2016.lofter.com/post/1e59a72f_c384cd3 http://njryw2016.lofter.com/post/1e59a72f_c384cd2 http://njryw2016.lofter.com/post/1e59a72f_c384cd1 http://njryw2016.lofter.com/post/1e59a72f_c384cd0 http://njryw2016.lofter.com/post/1e59a72f_c384ccf http://njryw2016.lofter.com/post/1e59a72f_c384cce http://njryw2016.lofter.com/post/1e59a72f_c384ccd http://njryw2016.lofter.com/post/1e59a72f_c384ccc http://njryw2016.lofter.com/post/1e59a72f_c384ccb http://njryw2016.lofter.com/post/1e59a72f_c384cca
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