Is there a risk of human poisoning when draining liquids at the site of instrument inspection and maintenance in sulfur recovery units?
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What measures should be taken to address the risk of human poisoning during liquid drainage at the instrument inspection and maintenance site of sulfur recovery units? It has been suggested that the design institute should carry out the design of a sealed drainage process for instruments within the equipment. What is the design of a sealed liquid discharge process for instruments, and is such a design reasonable?
I remember that diaphragm types were commonly used on site, with a closed liquid discharge system – it’s definitely not possible to vent hydrogen sulfide casually, as its toxicity is very high; instead, it must be discharged centrally into low-pressure containers or through auxiliary pressure lines