What design and changes are needed to install a bursting disc in front of the safety valve?
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What design and changes are required to install a bursting disc in front of the safety valve of the equipment?
Isn’t this statement wrong? ? ? It should be that the entrance of the bursting disc and the safety valve are at the same point, so the entrances are together. Why is it connected in series? "It is necessary to install a bursting disc in front of the safety valve,,,,,". Isn’t this “installing a bursting disc in front of the safety valve” correct? ? ? For reference.
The combination of safety valve and bursting disc can be used in series or parallel, depending on the application places. Issue a design liaison letter stating the design intention, and ask the design institute to issue a drawing and stamp it.
Read this GB/T 38599-2020 combination of safety valve and bursting disc safety device first.
First, the process needs to change the flow chart, the equipment major needs to provide a change data sheet for bursting discs, the piping major needs to modify the piping diagram, and the safety major needs to modify the safety design.
According to regulations, if there is a possibility of corrosion or blockage, a bursting disc must be installed.
When installing a series bursting disc in front of the safety valve, it is necessary to calculate the impact of the bursting disc on the relief capacity of the safety valve under accident conditions and whether it can still meet the required relief capacity. Generally, when a bursting disc is installed in series, the discharge capacity of the safety valve under accident conditions will be reduced by about 10% compared with that without a bursting disc.
Thank you, I am contacting the design institute now.
There is no need to change, just have the data sheet of the safety valve, and note that the bursting disc and the safety valve inlet are connected in series.