Pressure vessels operate on the fundamental principle of containing a fluid (gas or liquid) at a pressure different from the ambient pressure. The key aspects of their operation include:
Pressure Containment :
Structural Integrity : The vessel must be designed to withstand internal pressures without failing. This requires careful selection of materials and design parameters to handle the specific pressure and temperature conditions.
Stress Distribution : The shape and design of the vessel (often cylindrical or spherical) are chosen to evenly distribute stress, minimizing weak points where failures could occur.
Safety Mechanisms :
Pressure Relief Devices : These include pressure relief valves, rupture disks, and safety valves that release pressure if it exceeds safe levels, preventing catastrophic failure.
Monitoring Systems : Pressure vessels are often equipped with gauges, sensors, and alarms to monitor pressure, temperature, and other critical parameters in real-time.
Material Selection :
Compatibility : : The materials used must be compatible with the stored fluid to prevent chemical reactions that could weaken the vessel or contaminate the fluid.
Strength and Durability : Materials must be strong enough to handle the operational pressures and durable enough to resist wear and corrosion over time.