I have a question: are there any standard regulations stating that liquid ammonia tanks cannot be buried under soil, and that the burial distance cannot be reduced by half?
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1 Square: There is a current project, and the design institute determines the spacing in accordance with code 4.3.7, taking into account burial under yellow sand; can 50% of this spacing be considered? Do you agree with the design institute’s view? Please state the basis. Counterargument 1: According to Note 2 of Article 6.3.3 of the Petrochemical Regulations, the fire separation requirements for liquid ammonia storage tanks should be the same as those for liquefied hydrocarbon storage tanks. Currently, Note 6 in Table 4.2.1 of the Code for Fire Protection Design of Buildings GB50016-2014 is being applied to flammable liquid storage tanks, which presents issues regarding the applicability of the code. 2. Liquid ammonia storage tanks shall comply with item 6 of Article 6.3.5 of the Petrochemical Regulations; the requirements regarding fire dikes and barriers for full-pressure and semi-refrigerated liquid ammonia storage tanks are the same as those for liquefied hydrocarbon storage tanks. Therefore, liquid ammonia storage tanks cannot be buried. Currently, Note 6 in Table 4.2.1 of the Code for Fire Protection Design of Buildings GB50016-2014 is being applied to flammable liquid storage tanks, which presents issues regarding the applicability of the code. 3. In accordance with the \"Regulations on Ammonia-Related Enterprises by the Fourth Department of the Work Safety Administration,\" safety measures in liquid ammonia storage areas, such as the installation of ammonia alarms, full-width water curtain sprayers, and interlocks, have not been effectively implemented. 4. Is there currently no regulatory basis for burying liquid ammonia liquefied hydrocarbon pressure vessels? How to implement the inspection specifications for pressure vessels: there is no precedent for burying liquid ammonia storage tanks without installation. Pressure vessel tanks are confused with flammable liquid storage tanks; therefore, there is no reliable basis for safety, and this design proposal is not approved. Which one do you support? Please explain the reason, and it would be best to list the relevant standards
Experts, please come and give some guidance. If you don’t know, could you help me by asking the experts in my company? Thank you!
Well, I’d like to ask again: based on the building design codes, specifically clauses 4.3.7 and 4.4.1, can it be concluded that liquid ammonia storage tanks can be installed underground?
The liquid ammonia storage tanks are buried underground; in the event of a leak, determining where the leak is and dealing with it can be a problematic issue. As for the rest, we’ll wait to hear what those downstairs have to say……
In that case, liquefied petroleum gas faces the same problem, but both regulations and practical considerations support burying liquefied petroleum gas underground
If it were me, I would choose the opposing side. Under the current circumstances regarding safety and environmental protection, it is beneficial to design regulations that are as practical and forward-thinking as possible; moreover, the regulations for the petrochemical industry serve as the fundamental standards for that sector
Liquid ammonia and liquefied petroleum gas have different properties; liquid ammonia is soluble in water. Burying it isn’t appropriate, is it?
It’s not a petrochemical company; it’s a supplier in the automotive industry
Moreover, liquid ammonia storage tanks require spray water systems; if they are buried, how can the spray water be installed?