On pipeline vibration damping devices in the chemical industry
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That expert knows whether shock absorption devices need to be installed on the inlets and outlets of pumps, fans, pipes, and valves used in the chemical industry, and which standards or regulations specify whether such devices are required. Thank you! ! !
By the way, our steam and gas pipelines here are equipped with shock-absorbing devices. It’s not clear what the standard is
Are there shock absorbers or bellows expansion joints at the inlet and outlet of that pump?
In the petrochemical industry, are there any methods or standard requirements regarding the connections of pipes and pumps at their inlets and outlets, as well as those of storage tanks, that specify whether rigid or flexible connections should be used? Is the flexible connection a bellows expansion joint or a structure like a U-bend?
It depends specifically on the requirements of the design institute; it cannot be generalized. Adding it is beneficial for the equipment, but soft connections are generally a weak point; without it, even slight thermal stress or settlement can cause problems – in mild cases this leads to increased noise, while in severe cases it can cause the pipes to break or the equipment to crack. It’s better to add it
I’m not sure what the standards are; in any case, everything designed by our company’s design institute is available – there are options with shock absorption as well as those with flexible connections
Needed! Shock absorption devices are sometimes used as pipe fittings, such as expansion joints, π-bends, etc ； There are some auxiliary devices such as spring supports, hangers, and braces. You can refer to the chemical process design manual.