Understanding of the relevant provisions in the design codes for oxygen stations

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The last edit to this post was made by touchskyyy on 2019-5-15 at 15:05. 1. According to GB50030-2013 Code for Design of Oxygen Stations, clause 3.0.8, the distance between oxygen storage tanks, nitrogen and inert gas storage tanks, process equipment installed outdoors, as well as buildings with a fire hazard classification of Class B such as oxygen station buildings, can be determined based on the requirements of the process layout”； 3.0.15 “Liquid oxygen storage tanks and cryogenic liquid storage tanks should be located outdoors, and the fire separation distances from various buildings and structures must be complied with. . . ” Understanding: “Does 3.0.8 refer to a gas storage tank?” Does 3.0.15 refer to the liquid storage tank? ” 2. GB16912-2008 Safety Technical Regulations for the Production of Oxygen and Related Gases by Deep Freezing Method, 4.3.2, Table 3, Note 11: “For air separation units or inert gas storage tanks installed outdoors in oxygen plants (stations, workshops), the minimum fire separation distances from other buildings should be determined based on whether they are classified as Class B production units (air separation units) with fire resistance ratings of level 1 or 2, or as Class E production buildings (inert gas storage tanks) with the same fire resistance ratings.” Understanding this: First, what are inert gases? Helium, neon, argon, krypton, xenon, radon? ? ? Does nitrogen, which is one of the air separation products, count? ”It was found that the liquid nitrogen storage tanks at several oxygen production stations were located very close to buildings, seemingly without any fire separation distances maintained from other buildings as required for Class E buildings. Building codes do not specify any requirements regarding the spacing between Class V storage tanks; however, higher requirements apply to oxygen production stations. Secondly, the air separation unit refers to a collective term for equipment such as distillation columns, heat exchangers, adsorbers, and cryogenic liquid pumps that are located within a cold box, including valves, instruments, etc. ”Then should I also consider deep-cold nitrogen production equipment that only produces liquid nitrogen or nitrogen as Category B production facilities, given that the remaining oxygen is not purified and remains as oxygen-enriched air, which is then vented as gas for molecular sieve regeneration? 3. The two standards, GB50030-2013 and GB16912-2008, are one detailed and the other less so; why not simply merge these two standards?