Seeking advice on pressure setting for rupture discs
Thread Content
First scenario: The reaction takes place at atmospheric pressure, with a nitrogen blanket of 0.09 Mpa applied. What should the setting for the burst disc be? Second scenario: The hydrogenation reaction takes place at a pressure of 0.5 Mpa; a burst disc and a safety valve are used in parallel. What should be the set pressures for each of them? Thank you to the expert who shared their experience
The design pressure of the relief device is determined by the design pressure of the container, as it is meant to protect the container
In the first case, it is 0.1 MPa, which is less than the design pressure of the container. In the second case, the burst disc operates at 0.58 MPa, while the safety valve operates at 0.52–0.64 MPa
I have processed the data you provided based on gauge pressure; both rupture disks and safety valves should correspond to the design pressure of the pressure vessel. The design pressure for hydrogenation reactors needs to be at least 0.68