Questions about air separation
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1. Should there be a 3-meter distance between the liquid oxygen pipelines and the air compressor room (which contains equipment such as nitrogen compressors but no oxygen production equipment)? Is this distance requirement applicable? The standard specifies that oxygen pipelines should be kept at a distance of 3 meters from buildings. However, if the building is used for oxygen production or contains rooms where oxygen is used, then since it is already in contact with oxygen, no such distance requirement applies. Is the air compressor room considered a facility for oxygen production? It represents the first step in oxygen production, but no oxygen is produced there directly.2. Should the safety valves and discharge valves for liquid oxygen be set to discharge gas to the ground level or at a height of 200 mm above the ground? The standard requires discharge at a height of 4.5 meters, but in practice, many systems are set at a height of 200 mm. Is this still a mandatory requirement? What do you all think?
Air compressors probably don’t count, as there is no oxygen
First of all, I want to ask, are you in design? It doesn’t seem like it? For those in design, this shouldn’t be a problem, as it’s all part of the same project as a whole. The outer layer of liquid oxygen pipes is usually insulated, and their typical diameter is within DN80. As long as you are within the range of this oxygen generator, you can move around freely, trying to stay as far away as possible from areas with oil, high temperatures, and high pressures. There are relevant construction specifications for the design; if you just play around with the wording, by classifying everything under the oxygen production workshop, you won’t encounter any problems.
Generally, all the equipment and buildings involved in oxygen production are classified as part of the oxygen production workshop. The discharge of liquid oxygen is generally connected at a height of 200 mm above the ground, including the liquid-phase safety valve discharge pipe of the liquid pipeline