One-key shutdown function for hydrogenation unit
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I would like to ask all fellow sailors: do hydrogenation units have a one-button shutdown function?
Hydrogenation units are typically equipped with a one-key shutdown function to quickly shut down the system in emergency situations. .
I learned about it for the first time; theoretically, it is possible to achieve this. Nash vacuum pumps produce a whistling sound. https://bbs.hcbbs.com/thread-5669444-1-1.html (Source: Haichuan Chemical Industry Forum)
Question: Is this function a cascading program? What function does it mainly serve?
The process should have an emergency shutdown interlock; by applying this logic to the one-click shutdown button, it can be activated
May I ask which company’s device has this feature?
The one-button shutdown function is not fully functional. If emergency pressure relief can be used to shut down the system, then it depends on the specific interlock scheme provided by the patent holder; for example, when emergency pressure relief is activated, the interlocks may shut down the cyclohydrogen compressor, the fresh hydrogen compressor, the feed pump, the heater, etc., which essentially means a complete shutdown of the system.
According to the shutdown procedures in your operating manual, you can write the relevant automatic control program step by step via the DCS or PLC. .
Prevent panic and misoperations during emergencies.
Chain parking is not difficult; what’s a bit troublesome is handling it on-site.
Typical hydrogenation units are equipped with emergency pressure relief systems operating at 7 bar, 14 bar, or 21 bar; however, the conditions that trigger these systems and their purposes differ, as do the interlocks that come into effect following a trigger. The key objective is to bring the unit back to a stable state.