【Q&A Question 178】2017.06.27
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This post was last edited by 955559 on 2017-7-21 23:05. [Q&A Question 178] On 2017.06.27, when shutting down a compressor, should the valve be opened wide regardless of the pressure level? Why? The reference answer can be seen after *responding*; points will be awarded for identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Note: For questions of the type \"one question per day,\" if a person replies continuously for a month, that is, posts more than 30 times, their score will be assigned as 2 points, which is the lowest possible score. Click once to reply; if multiple replies are made, points will be awarded as appropriate, as deleting posts is also a waste of time. When shutting down the system, regardless of the pressure level, the valve should not be opened too wide; it should be opened slowly to prevent gas from rushing out and causing severe vibrations in the pipes as well as fires. This is especially true for high-pressure sections, where the valve must not be opened too wide, otherwise static electricity could lead to fires or explosions. Scoring criteria: 2 points for incorrect answers; 3–8 points for partially correct answers; 10 points for correct answers accompanied by a detailed explanation; 15–20 points for correct answers with additional supplementary information. Please score according to these criteria. Note: If there are editing records after answering, only points will be awarded to those who participated. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings. 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
No, it should be opened slowly to prevent severe vibrations or fires in the pipes. The pressure on the high-pressure side should not be too high, otherwise it could lead to electrostatic ignition and explosions.
The last edit to this post was made by Peng Zuosen on 2017-6-27 at 07:59. When shutting down the system, regardless of the pressure level, the valve should not be opened too wide; it should be opened gradually to prevent gas from rushing out and causing severe vibrations in the pipes as well as fires. This is especially true for high-pressure sections, where the valve must not be opened too wide, otherwise static electricity could lead to fires and explosions
When stopping the machine to relieve pressure, do not release it too quickly or open the valve wide to do so; instead, relieve the pressure gradually. To prevent violent vibrations and static discharge fires caused by too high gas flow rates. (Gas flow speeds exceeding 25 meters per second can cause static electricity-induced ignition.) Additionally, it prevents the gas holder from maintaining a water column, posing significant difficulties in the gas production process; therefore, pressure release must be carried out slowly.
When stopping the machine to relieve pressure, do not release it too quickly or open the valve wide to do so; instead, relieve the pressure gradually. To prevent violent vibrations and static discharge fires caused by too high gas flow rates. (Gas flow speeds exceeding 25 meters per second can cause static electricity-induced ignition.) Additionally, it prevents the gas holder from maintaining a water column, posing significant difficulties in the gas production process; therefore, pressure release must be carried out slowly.
When stopping the machine to relieve pressure, do not release it too quickly or open the valve wide to do so; instead, relieve the pressure gradually. To prevent violent vibrations and static discharge fires caused by too high gas flow rates. (Gas flow speeds exceeding 25 meters per second can cause static electricity-induced ignition.) Additionally, it prevents the gas holder from maintaining a water column, posing significant difficulties in the gas production process; therefore, pressure release must be carried out slowly.
It shouldn’t be. The pressure is too high, which causes the valve to open wider and puts too much stress on it. It’s just a feeling; I’m not sure about it
During unloading, regardless of the pressure level, the valve should not be opened too wide; it must be opened slowly to prevent gas from rushing out and causing severe vibration in the pipes as well as fires. This is especially true in high-pressure sections, where the valve must not be opened too widely, otherwise static electricity could lead to fires and explosions.