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受限空间和氮气危害及防范精选
Customer Communication Package
受限空间及氮气的危害及防范受限空间及氮气的危害及防范
受限空间及氮气的危害及防范受限空间及氮气的危害及防范
CSE and N2 Hazards and Prevention
thth
May 10May 10 , 2010, 2010
Zhou Xingchen
Gasification, Global Solutions Upstream, Shell Projects Technology
Copyright of Shell Confidential April 2010 1
Agenda 内容内容
内容内容
1. Incident Sharing 1 ~ 5
事故案例分享
2. Key Learning
主要教训
3. N2 Hazards and Prevention
氮气危害与防范
4.4. CSE Best PracticesCSE Best Practices
受限空间管理良好实践分享
5. Personnel Gas Detectors
个人气体探测仪
CSE: confined space entry
JHA: job hazards analysis
PTW: permit to work
Copyright of Shell Confidential April 2010 2
CCR: central control roo
1.0
Incident Sharing 1-5 事故案例分享事故案例分享 1 ~5
事故案例分享事故案例分享
Incident Sharing -1
Incident Description 事故述事故述
事故述事故述
We were doing site visit at the gasifier. After client HSE staff checked the man hole A5 Shell
staff came closer to A5 as well. Suddenly his personnel gas detector vent off and indicated
low O2 content. He immediately escaped from the spot.
Site investigation indicated that N2 blowback into gasifier was not shut off before manholes
were opened. Steam ejector was started but without o
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