Is a burst disc used to ensure the strength of equipment and pipelines, or to ensure the sealing of hazardous materials?
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Is a burst disc used to ensure the strength of equipment and pipelines, or to ensure the sealing of hazardous materials? Should the installation of a burst disc be considered from the perspective of strength, or from the perspective of leakage?
It’s mainly for safety reasons – safety accessories to release pressure in emergency situations.
First, understand what a rupture disc is: it is similar to a safety valve but is a disposable product. Since its function is to release pressure, it is not suitable for use with hazardous materials, as the substances released could cause harm. Therefore, attention must be paid to the location of installation, and operators should be well-versed in the conditions at the site, especially regarding how to evacuate in case of an accident
Most rupture discs are designed to ensure the safe pressure relief of equipment. In terms of engineering, the strength of pipelines is generally greater than the design pressure of the equipment, and medium leakage is also taken into account; for specific details, one can refer to the operating conditions under which the rupture disc is used.
Blowout valve safety devices cannot be used alone in situations where the toxicity of the medium is extremely high, highly hazardous, or where explosive substances and liquefied petroleum gas are involved...
Blowout valves are used to ensure that pressure is released from pipelines and equipment before damage occurs; they are disposable safety components that must be used in conjunction with valves, and leakage is not permitted under normal conditions
From a safety perspective regarding pipelines, it is necessary to install safety accessories; depending on the properties of the medium, rupture disks or safety valves are chosen, and of course they can also be installed in series or in parallel.
Blowout valves are used to ensure that pressure is released from the equipment before it is damaged; they are disposable safety components that are typically used in conjunction with valves
The owner still doesn’t understand the concept of safety accessories, right! Previously, safety valves, rupture discs, pressure gauges, and the like were referred to as safety accessories, with only safety valves and rupture discs being considered release devices. After the issuance of the major regulatory standards, safety valves and rupture discs are classified as safety accessories, while pressure gauges fall under the category of instruments. Relief devices are not limited to safety valves and rupture discs, but these two types are still primarily used. Safety valves can be reused, while rupture discs are disposable. Releasing the pressure inside the equipment when it is under overpressure is the last line of defense for equipment safety, aimed at minimizing the risk of safety accidents.
If sealing is taken into account, then a burst disc should not be necessary; the purpose of a burst disc is to prevent secondary disasters caused by sudden overpressure. A safety valve can return to its original position when subjected to overpressure, while a burst disc is essentially a one-time use item. Additionally, the application scenario must be considered – in some cases it needs to be used in conjunction with a safety valve