[Q&A Question 287] 2017.11.1
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【Q&A Question 287】November 1, 2017: Why cannot it be assumed that a hydrogen-handling system is airtight if its pressure drop is within the specified limits? There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) For management purposes, if you need to view content from a few days ago, please go through the summary post below. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html (Source: Haichuan Chemical Industry Forum)
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.
Because the pressure does not rise to normal levels when airtight.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen will leak at those few locations after operation, posing a risk of explosion
Answer: There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking in those few areas after operation could lead to an explosion.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.
There are many reasons for pressure drop; it may be caused by leaks in multiple seals, or it may be due to severe leaks at a few seal points. If it is the former case, it meets the requirements, but the latter situation is absolutely unacceptable in hydrogen-handling systems, as otherwise, a large amount of hydrogen gas leaking from those few locations after operation could lead to an explosion.