Safety valve calculation
Thread Content
For a water collector with a design pressure of 1.1 Mpa and a design temperature of 80°C, how should its safety valve be calculated?
:Only the devil knows how to calculate it; P, you should go and look at the calculations related to safe venting, to see what parameters are involved. Only at temperatures and pressures that are almost 0
Hot water isn’t an issue; choosing the smallest safety valve will suffice for use
3# Birds that can’t fly – what’s the reason?
It’s probably because water is incompressible; as soon as it’s released, the pressure drops rapidly. We can observe this phenomenon during pressure tests.
As far as I know, safety valves are rarely installed on water distributors and collectors.
That must be during the pressure holding phase; what if the pressure source continues to apply pressure?
First, it is necessary to consider whether there is a gas phase space, whether there are any sudden pressure changes, and whether there is pressure source control in the pipelines.
If so, consider using the sw6 software for calculations, or perform manual calculations based on GB150 or relevant standards.
The conditions you’ve provided are not enough; we also need the flow rate of the inlet, as well as the diameter and length of the container. It’s necessary to calculate its safe discharge volume before a safety valve can be selected! ! ! Safety valves are designed to ensure safety; the safe discharge volume can be calculated according to the appendix of the Pressure Vessel Regulations. . .
If the medium contained in your container is entirely water, with no gas space, then there is no need to calculate for a safety valve; simply select a pressure relief valve on the water side with a DN20 size or similar. If there is a gas phase space, you need to add some additional parameters.