[Q&A Question 122] 2018.05.02
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【Q&A Question 122】May 2, 2018: Briefly describe what precautions should be taken 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 source directly or having others in that area, as this is extremely dangerous. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) The validity period for this question is 48 hours; within those 48 hours, 10 wealth points are awarded for correct answers and 2 wealth points for incorrect answers ； If the response is given after 48 hours, the score is halved, regardless of whether it is correct or not ； 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. The APP short-video skill competition has started! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
High-pressure sections usually have dual valves: the first valve is used to hold back the flow, while the second valve is opened slowly; once the medium has flowed out, the valves are operated according to actual needs
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one must never increase the flow rate suddenly, nor should one face directly at others, as this is extremely dangerous.
Sampling should be carried out slowly; under no circumstances should it be done at full speed, and one must never face other people directly, as this is extremely dangerous.
When sampling or draining condensate from areas under high pressure, it is essential to do so slowly; one should not increase the flow rate suddenly, nor should one face directly at others
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 and draining condensate from high-pressure systems, it is necessary to do so slowly; it is absolutely forbidden to increase the pressure suddenly, and it is also extremely dangerous to face the system directly or to have others do so.
High-pressure sections usually have dual valves: the first valve is used to hold back the flow, while the second valve is opened slowly; once the medium has flowed out, the valves are operated according to actual needs
It is mainly to prevent high-pressure materials from escaping in a way that is difficult to control or that could harm people； During liquid removal, first open the drain valve slightly; once liquid is visible, adjust the opening degree according to the liquid level. As the liquid level drops, gradually close the drain valve, and shut it off immediately once the liquid level is out of sight. During sampling, it is also necessary to maintain a low valve opening at first, allow the process to proceed at a moderate pace, and ensure that the valve opening is very low at the end.
When sampling or draining from high-pressure systems, it is essential to proceed slowly; one must not suddenly increase the pressure, nor should one face directly at the source or at other people, in order to avoid danger. It is best to use a dual-valve design for this position; the slow opening of the two valves together makes it safer.