[Q&A Question 240] 2018.09.03
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【Q&A Question 240】September 3, 2018: Briefly describe what considerations should be taken into account when sampling or draining fluid from high-pressure systems. When sampling or draining from areas with high pressure, it is essential to do so slowly; it is absolutely forbidden to increase the flow rate suddenly, and one must also avoid facing the stream directly or having others in its path, as this is extremely dangerous. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
Sampling in high-pressure systems mainly involves circulating hydrogen. When sampling circulating hydrogen before desulfurization, it is necessary to wear appropriate personal protective equipment, and there must be someone to supervise the process. Any closed-system emissions must be handled in a sealed manner before sampling, and no welding or other flame-based operations should take place in the vicinity. The sampling valve should be opened slowly; opening it quickly is strictly prohibited. During condensate drainage, it is also strictly prohibited to open valves quickly; in addition, the low-pressure pipelines downstream must be checked in advance to ensure they remain unobstructed.
Sampling in high-pressure systems mainly involves circulating hydrogen. When sampling circulating hydrogen before desulfurization, it is necessary to wear appropriate personal protective equipment, and there must be someone to supervise the process. Any closed-system emissions must be handled in a sealed manner before sampling, and no welding or other flame-based operations should take place in the vicinity. The sampling valve should be opened slowly; opening it quickly is strictly prohibited. During condensate drainage, it is also strictly prohibited to open valves quickly; in addition, the low-pressure pipelines downstream must be checked in advance to ensure they remain unobstructed.
Answer: When sampling or draining condensate from areas under high pressure, it is essential to do so slowly. Under no circumstances should the flow rate be increased suddenly, nor should one face directly at others, as this is extremely dangerous.
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one must never increase the flow rate abruptly, nor should one face others directly, as this is extremely dangerous.
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one must never increase the flow rate abruptly, nor should one face others directly, as this is extremely dangerous.
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one must never increase the flow rate abruptly, nor should one face others directly, as this is extremely dangerous.
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one must never increase the flow rate abruptly, nor should one face others directly, as this is extremely dangerous.