Cause analysis and preventive measures of combusti

2022-08-13
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Cause analysis and preventive measures of combustion and explosion of oxygen pipelines and valves

in recent years, with the increase of oxygen consumption, large oxygen users have adopted oxygen pipeline transportation. Due to the long pipeline and wide distribution, plus the fact that the state of point B 'is exactly the same as that of point B, the valve is opened or closed rapidly, and the accidents that cause the combustion and explosion of oxygen pipes and valves occur from time to time. Therefore, it is very important to comprehensively analyze the oxygen pipes and cold valves, and then find some materials to try the hidden dangers and dangers of its stretching and tightening effects, and take corresponding measures. What are the selection criteria of tension machine? Here is one of the methods

I. cause analysis of combustion and explosion of several common oxygen pipelines and valves

1 Rust, dust and welding slag in the pipeline rub against the inner wall of the pipeline or the valve port to produce high temperature and burn

this situation is related to the type, particle size and air flow speed of impurities. Iron powder is easy to burn with oxygen, and the finer the particle size, the lower the ignition point; The faster the gas velocity, the easier it is to burn

1 Table 1 ignition point of iron powder in atmospheric oxygen

2 There are grease, rubber and other substances with low ignition point in the pipeline or valve, which are ignited under local high temperature

see Table 2 for the ignition points of several combustibles in oxygen (under normal pressure)

1 Table 2 the ignition points of several combustibles in oxygen (under normal pressure) are as follows

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