Must the liquefied hydrocarbon spherical tank in a refinery be equipped with a low liquid level alarm interlock to cut off the outlet valve?
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Do the liquefied hydrocarbon spherical tanks (1,000 cubic meters, no longer entering the production system, only loaded into trucks for sale) in the refinery must be equipped with low and low liquid level alarm interlocks to cut off the outlet valves? There are only provisions for high and high liquid level alarm interlocks to cut off the feed in the petrochemical regulations. But experts say this must be installed. Could you please tell me which standard this comes from? Thanks!
Just ask the experts, what is the principle of loading a truck and what should be cut off?
“What is the professional title of "expert"? What position? What level? How about belonging? To untie the bell, you must also tie the bell. Experts say that it is best to find an expert.
A senior engineer in chemical engineering, the design institute said that adding it is better than not adding it, but it is still recommended to add it.
Tell him, it's fine, he just needs the design institute to issue a rectification document. It is not a big deal for such a large enterprise to add a valve. But there must be a final signature, which is very important. However, if those who are not responsible for this area know what is going on, it would be better not to participate.
I checked the risk assessment guide for oil and gas storage companies recently issued by the Ministry of Emergency Management, and there is no requirement to install low-low level interlocks. Although this guideline does not apply to production enterprise storage facilities, by its nature, this liquefied hydrocarbon tank functions similarly to the tank of a dedicated storage enterprise. But experts said there is a problem and it’s really hard to fix :L
I can’t remember the specification, it needs to be added to prevent me from taking too much time.