In air separation units that have been operating continuously for ten years, which equipment is most prone to malfunctions?
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Our air separation unit has been in operation for nearly a decade now. Due to contractual requirements that prevent any interruption in gas supply, the time available for major maintenance at the factory is very limited, and it’s also not possible to adjust the safety valves on some of the pipelines. Recently, the activation of these safety valves caused fluctuations in the production process. Equipment aging is an inevitable phenomenon; therefore, we would appreciate it if you could offer some advice on what actions we need to take to ensure continued stable operation. Or perhaps you can point out which aspects are likely to develop problems over time. Thank you
It’s better to stop the vehicle and turn on the heating; also check the safety valve – it’s too dangerous as there’s a risk of explosion
I don’t quite understand what it means to keep breathing Why can’t I stop breathing? It’s a bit strange, oh
Reply to 3# gaojian*n: Not stopping the supply means that the air separation equipment can be shut down, but the gas supply will continue as usual; it is necessary to use back-up supplies, though the reserves are limited
:)This requires time and the accumulation of experience! Please also have the seniors speak up. Learn* it a bit
One could consider buying liquid nitrogen for users to use; there can’t be just one storage tank, right?
Over a ten-year period, air separation equipment should be phased out and updated in line with its lifecycle; backup systems must be improved to ensure continuous operation. Indeed, since the existing units cannot be shut down, it is necessary to add more units to compensate and ensure the reliability of gas supply.
Reply to 1# gader: How can one still dare to use such equipment? It’s too dangerous. . . . . . 1. A globe valve should be installed in front of the safety valve to facilitate annual calibration ； 2. What are the wall thicknesses of the pipes and pressure vessels inside the cold box, especially at the elbows? ； 3. The components of each primary instrument need to be calibrated ； 4. Wear condition of molecular sieves ； The most important thing is that the main cooler needs to be regenerated. Safety is the top priority in everything. The nature of capitalists. . . . . Operators must always pay attention to safety, remember that!