The vapor phase at the top of the tower is classified as Category A, while the liquid phase at the top is naphtha classified as Category A B. What is the fire hazard classification when operating this tower: Category A or Category A B?
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Which one will be stricter? O(∩_∩)O Thank you
The petrochemical regulations are meant solely to emphasize the hazards of liquefied hydrocarbons; hence categories A and AB are established. In fact, according to the construction regulations, they all fall under category A, so it is sufficient to follow the requirements for category A~
I took another close look; the petrochemical regulations do specify the fire separation distances for Class A and B. It depends on which regulations you follow in your design – generally, petrochemical projects recommend using the petrochemical regulations, so you should specify Class A or B. . . . I didn’t think things through properly before; I was rude~
It’s still not correct. I took another close look – process units are classified only into Category A and Category B. The so-called difference between A and AB lies only in terms of storage tanks and loading/unloading areas. If it’s just a tower, then it falls under process units and is not classified as A or B. So you still need to treat it as a Category A unit. In short, it’s simply a Category A device~;P I’m about to pass out. . . .
The classification of fire hazard can be divided into four types: fire hazard classification for manufactured products, stored items, combustible gases, and combustible liquids. The fire hazard classification for such products is divided into Classes A, B, C, D, and E. The fire hazard classification for stored items is divided into Classes A, B, C, D, and E. The fire hazard classification of combustible gases is divided into Class A and Class B. The fire hazard classification of flammable liquids is divided into Class A, Class B, and Class C. It seems that the fire hazard conditions referred to by the poster should belong to the production category, and it should be classified as Class A
Category A; if broken down further, it is A B, and these two are not contradictory. Building codes classify facilities into only Category A, while petrochemical codes further divide Category A into Subcategories A and B; it is very rare for a facility to reach Subcategory A. When implementing the provisions of the petrochemical regulations, it is necessary to clearly determine whether the requirement refers to Class A, Class A1, or Class A2
I read the reply on floor 2 and was misled. . . Put forward conditions; just specify Category A directly