A flame arrester is installed behind the safety valve
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I’m seeking advice from fellow sailors: there is currently a safety valve outlet for atmospheric emissions, and according to expert reviews, a flame arrester should be installed at that outlet. May I ask if the size of this flame arrester matches the diameter of the safety valve outlet pipe? What principle is used for the calculation? Currently, I calculate the pipe diameter based on the condition that the Mach number at the outlet of the safety valve when it discharges to the atmosphere is no greater than 0.5. I’m not sure if this is right.
The size of the flame arrester should match the diameter of the pipe at the outlet of the safety valve, to ensure smooth airflow and prevent pressure losses. The selection of a flame arrester is typically based on parameters such as the type of fluid, pressure, temperature, and flow rate. It is reasonable for you to calculate that the Mach number of the flow exiting the safety valve into the atmosphere is no greater than 0.5, as this prevents damage to the pipeline caused by flow at the speed of sound. At the same time, it is also necessary to consider whether the flame arrester can withstand the highest pressure and temperature at the outlet of the safety valve, as well as whether it complies with relevant safety standards. You can refer to relevant industry standards or consult the manufacturer for specific selection advice. .
Why do experts ask for this? Should a flame arrester be installed behind the safety valve?
This safety valve is designed to function in the event of a rupture in the heat exchanger tubes, with its outlet leading to the atmosphere. Experts consider tempering.
“The pipe diameter is determined based on the condition that the Mach number at the outlet of the safety valve when it discharges to the atmosphere is not greater than 0.5 – a silencer is required as the noise level is too high
The explanations regarding the petrochemical pattern stripes state that it’s not necessary to include them; what’s the point of adding such things? Experts just follow the rules mechanically, which is meaningless, and it may even pose a risk to pressure relief
Could you tell me which specific standard it is? Thank you
The interpretation of Article 5.5.4 of the \"Code for Fire Protection Design of Petrochemical Enterprises\" (2018 edition) (GB50160-2008) states: \"...(4) A flame arrester is not required for the vent pipe at the outlet of the safety valve.\"”
The installation of a flame arrester indicates that the medium in question is flammable; direct discharge to the atmosphere is not allowed at present. It is usually directed to a flare stack. Moreover, installing a flame arrester after the safety valve can affect the discharge process
I’m learning*; there are too many opinions from experts.