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English Translations » 炼制(催化焦化深加工) » Are there emergency shut-off valves for the catalytic unit s

Are there emergency shut-off valves for the catalytic unit slurry and reprocessed oil extraction?

2017-08-20View Original

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Are there emergency shut-off valves for the catalytic unit slurry and the reprocessed oil? If so, what type are they: electric, pneumatic, or some other type?
Reply #22017-08-20
According to the new safety regulations, or rather the results of the HAZOP analysis, emergency shut-off valves with remote control are required to prevent the situation where it is not possible to shut off the flow in case of a fire, which could lead to more serious accidents.
Reply #32017-08-20
According to the new safety regulations, or rather the results of the HAZOP analysis, emergency shut-off valves with remote control are required to prevent the situation where it is not possible to shut off the flow in case of a fire, which could lead to more serious accidents.
Reply #42017-08-20
It should be installed to draw air from the tower, either electrically or pneumatically, and it can be shut off when no one is nearby. If the fire shut-off valves in Dalian fail or are not installed, fire accidents can be severe.
Reply #52017-08-20
If there is an automatic shut-off valve, that’s fine – it prevents accidents from worsening due to slow human reaction times – but it must be able to function at critical moments.
Reply #62017-08-20
It’s generally not designed for installation, right? But after the accident in Dalian, there must have been modifications or additions made. Modification is possible; if something is added, it creates an additional seal, which in turn introduces another potential hazard.
Reply #72017-08-21
Seal replacement: changed from a single seal to a high-temperature dual seal
Reply #82017-08-21
We installed this during the renovation in 2011; it was placed at the inlet of the pump, and an infrared fire monitor was also installed! It seems that all the heavy oil pumps in our facility have been modified accordingly; it’s essential to do so!
Reply #92017-08-21
You are really ahead of us; we only upgraded some of our pumps last year. However, the liquefied gas pumps in our gas separation unit all use dry gas seals
Reply #102017-08-22
It is said that modifications have been made to existing draw-off valves; I’m not sure how exactly they are carried out

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Translated at 2026-07-21 05:07:35

Original: https://bbs.hcbbs.com/thread-1828423-1-1.html

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