Design service life of the damping check valve in the main air duct of the catalytic cracking unit

This post was last edited by lupg on 2020-6-17 at 22:02. 1. Whether it is the designer or the manufacturer, there are specified conditions, namely design conditions, for determining the service life of a product; operating under these design conditions will enable the product to reach the specified service life. 2. In reality, however, most users find it difficult to prove that the product has operated under the design conditions throughout its entire service life. 3. For certain types of wear and damage, such as fatigue, overheating, or overpressure, the extent of such conditions is related to the duration of abnormal operation; once these conditions reach a certain level, the product will fail even during its normal operational period. 4. Returning to the damping check valve in the main air duct of a catalytic cracking unit, it can function properly at temperatures below 200 degrees Celsius for an extended period. But for example, if overpressure occurs leading to leakage, or in severe cases, backflow of hot fluids, then the valve cannot withstand such abnormal conditions. 5. Of course, it is also possible that there are inherent safety issues, such as defects in the design, manufacturing, and installation processes. 6. The description is a bit off-topic

Was President Hu speaking in reaction to an accident that occurred recently?

More and more people are paying attention to issues related to long-term operation and safe operation. Civil engineering (structures) and equipment (static + dynamic) have defined design lifespans; does piping also have one? It seems that valves do not.

Relevant data measurements are taken every time the pipeline is inspected, and usually, more personnel are assigned for this task. Relevant adjustments are made to key valves before testing, but in my opinion the main things that are tested are whether they operate properly, whether their accuracy is sufficient, and whether their logic functions correctly; as for other aspects, my knowledge is limited and I am not aware of them.

Furthermore, this is definitely a systems engineering project; every component is related to the long-term operation of the device. Equipment is the foundation of everything, and other elements are also important. The sorting based on stability, longevity, and optimal performance makes good sense; only by fully understanding and implementing this approach can we ensure the proper functioning of all aspects, thereby guaranteeing the safety of the equipment, as well as its stable operation over extended periods, at full capacity, with optimized performance.

Ours has been in use for 15 years, and there are no plans to replace it; it will be inspected during routine maintenance, with any aged components being replaced