How should a burst disc be understood when used alone?
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There are such requirements for rupture discs and rupture devices: when a rupture disc is used alone, a shut-off valve must be installed at the inlet. Does the phrase \"when used alone\" refer to the rupture disc alone, without including other vent valves in the pressure vessel?
Are there drain valves that are used together with rupture discs? So how do I clear my mind?
The use of a rupture disc here on its own means that no safety valve is installed in the pipeline; it is necessary to install a flame arrester, and of course this has nothing to do with the vent pipe
Use alone refers to the use of the blast disc as the sole safety relief device. A rupture disc cannot be used alone; a shut-off valve cannot be placed in front of it. Please discuss
I agree with the above opinion; generally, burst discs and safety valves are used together, as the safety valve alone is not capable of fully releasing pressure, and it is then that the burst disc comes into play
It makes sense to use a burst disc in combination with a shut-off valve; this allows the valve to be closed after the burst disc activates to release pressure, thereby reducing environmental pollution. Additionally, it facilitates the replacement of the burst disc.
Using it alone means that no safety valve is required; only a burst disc is needed as the sole release safety device.
Using it alone means: it is not used in conjunction with a safety valve; a stop valve is installed at the inlet: its purpose is the same as that of the root valve of a safety valve.
The rupture disc should act first, and the safety valve will then activate once it can no longer handle the pressure. This is precisely the purpose of using both a rupture disc and a safety valve together: to prevent the leakage of toxic, harmful, or valuable substances, which could lead to pollution, safety incidents, or financial losses.
Combined use of rupture discs and safety valves 1. Series connection of rupture discs and safety valves: A rupture disc is installed at the inlet of the safety valve. To prevent significant loss of process material due to the rupture of the rupture disc, in situations where the safety valve cannot be used directly (such as when the material is corrosive or leakage must be avoided), a rupture disc is generally installed at the inlet of the safety valve. The rated burst pressure of the rupture disc is the same as the set pressure of the safety valve, and its nominal diameter is not smaller than the diameter of the safety valve’s inlet pipe. The burst disc is installed at the outlet of the safety valve. If there is a risk of corrosive gases in the discharge pipeline, the burst disc should be placed at the outlet of the safety valve to protect it from corrosion. The maximum design burst pressure of the rupture disc shall not exceed 10% of the set pressure of the spring-loaded safety valve. The nominal diameter of the burst disc is the same as the outlet diameter of the safety valve. 2. Pressure relief discs are used in parallel with safety valves. To prevent a rapid increase in pressure inside the pressure vessel under abnormal operating conditions, or to increase the discharge area in case of a fire, one or several pressure relief discs are installed in parallel with the safety valves. The calibrated burst pressure of the rupture disc should be slightly higher than the set pressure of the safety valve, and must not exceed the design pressure of the container. The rupture disc must have sufficient discharge area to meet the requirements for protecting the container