Nitrogen replacement in the pipeline from the last cut-off valve of the natural gas pipeline to the burner
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I have a question. I heard from the manufacturer that the pipeline from the last cut-off valve of the natural gas pipeline to the burner does not require nitrogen replacement. Is this true? So how to ensure the safety of this pipeline? This problem has troubled me for a long time, and I hope you can help me.
It is safe if the ignition method is correct. You draw the flow chart, and then think about the ignition process and the gas flow process in the pipe during ignition to see if there are any hidden dangers.
Analyzing and judging according to the process principles and understanding the principles are necessary to solve the problem. The process is attached, you can look at the pictures to speak, which is more intuitive.
This process has insufficient protection and high risks.