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1. Is a heat transfer oil boiler a device that uses an open flame? 2. What fire category do dilute sulfuric acid and dilute nitric acid belong to? (Is it Category B, Item 3: strong oxidizers that do not belong to Category A?) 3. In the explanations of the building code provisions: Is the maximum allowable amount for determining the fire hazard category of a substance based on its fire hazards defined as the amount used per day or as the amount introduced at one time? 4. Can the feed processing workshop (Category C) be built adjacent to it?
Let me try to answer. 1. Is the heat transfer oil used in equipment that involves an open flame? According to Article 3.1 of the GB50016-2006 Code for Fire Protection Design – Classification of Fire Hazards, Category D: 1. Production processes that involve processing non-combustible materials, and which frequently generate intense radiant heat, sparks, or flames under high temperatures or in a molten state; 2. Various production processes that use gases, liquids, or solids as fuels, or that involve burning gases or liquids for other purposes; 3. Production processes that involve using or processing materials that are difficult to ignite at normal temperatures. The explanation provided in the relevant provisions is as follows: ② For Item 2 under “Category D”: Although combustion occurs using gases, liquids, or solids as raw materials, and it involves open flames, such combustion takes place within fixed equipment, making it less likely to cause fires. Although there are also some explosion incidents, they are generally of a physical nature, such as those that occur during production in boilers, lime calcination processes, and blast furnace facilities.
2. Fire classification of dilute sulfuric acid and dilute nitric acid: Dilute sulfuric acid does not possess strong oxidizing properties. As for dilute nitric acid, you can refer to http://bbs.hcbbs.com/thread-531454-1-1.html
1. Is a heat transfer oil boiler a device that uses an open flame? Based on years of experience, it involves an open flame, but its risk level is slightly lower than that of an open hot pot stove. (Learned from experts) 2. What fire classification do dilute sulfuric acid and dilute nitric acid belong to? (Is it Category B, Item 3: strong oxidizers that do not belong to Category A?) ) Yes. 3. In the explanations of the building code provisions: Is the maximum allowable amount for determining the fire hazard category based on the fire hazards of the substances the daily usage amount or the amount used in a single shipment? There is an explanation after Table 2, along with the calculation methods and criteria for determination. 4. Can a feed processing facility (Category C) be built adjacent to it? Minimum fire separation distance between Class C workshops (fire resistance ratings 1 and 2): 10 m, Table 3.4.1