What are the basic requirements for the design of high-pressure vessels?

1. Name and category of the pressure vessel. 2. Design requirements (temperature, pressure, medium, corrosion margin, weld factor, natural foundation, etc.) 3. Material grades and requirements for the main pressure-bearing components. 4. Main characteristic parameters (volume, heat exchange area, and number of stages) 5. Manufacturing requirements. 6. Heat treatment requirements. 7. Corrosion resistance requirements. 8. Non-destructive testing requirements. 9. Withstand voltage test and airtightness test. 10. Specifications and special requirements for safety accessories. 11. Location of the nameplate on pressure vessels. 12. Requirements for packaging, transportation, on-site welding, and installation. 13. Other special requirements.

In terms of structural design, strength calculation, material selection, and technical specifications, the design of high-pressure pressure vessels must meet the following requirements: 1. Strength requirements – Strength refers to the capacity of a vessel’s pressure-bearing components to resist fracture without undergoing excessive plastic deformation under external forces. 2. Stiffness requirements: Stiffness refers to the ability of a container, under external forces, to prevent its pressure-bearing components from undergoing excessive elastic deformation. 3. Stability requirement refers to the ability of a container to maintain its geometric shape without change under external forces. 4. Sealing requirements: The media contained in pressure vessels are usually flammable, explosive, or toxic; a leak can lead to environmental pollution, property damage, and casualties. Therefore, the sealing performance is of utmost importance. 5. Service life: Pressure vessels should generally have a certain service life. The design service life of pressure vessels is generally 10 to 15 years, while that of important vessels is 20 years. 6. Structural requirements: The structure of pressure vessels must not only meet the process requirements and possess good load-bearing properties, but also be easy to manufacture, inspect, transport, install, operate, and maintain.