Pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. They are used in a variety of industries, including chemical processing, oil and gas, power generation, and aerospace.
Design and construction:
Pressure vessels must be designed to withstand high pressures and temperatures. They are typically made from strong materials like steel or titanium and are designed with safety margins to prevent failure. The design often includes features like thick walls, reinforcing structures, and safety valves.
There are different types of pressure vessel include:
• Storage Tanks:
Used for storing gases or liquids under pressure.
• Reactors:
Used in chemical processes to facilitate reactions under controlled pressure.
• Heat Exchangers:
Used to transfer heat between fluids under pressure.
Define Requirements
First of all understand the purpose of design vessels and their pressure details including its intended use, operating conditions i.e. pressure, temperature, contents, capacity, material properties and regulatory requirements.
Define Requirements
First of all understand the purpose of design vessels and their pressure details including its intended use, operating conditions i.e. pressure, temperature, contents, capacity, material properties and regulatory requirements.
Select Material
Material depend upon the strength of the vessel strong material have more pressure absorbing pressure as compare to low material strength. Commonly the basic factors that material properties, corrosion resistance, temperature resistance and cost. Mainly material which are used is carbon steel, stainless steel, Aluminum SA-GR-250 LF2, MS-GR 250 etc.
Determine Design Pressure and temperature
Calculate different aspects of pressure vessel that maximum pressure, temperature range, Volume of fluid, fluid behavior, properties of vessels, heat transfer analysis, analysis simulation, and working procedure.
Select design and codes
Choose codes and standards which provides the direction by client. Applicable design and codes standard that govern the design, fabrication, inspection and testing of pressure vessels. Common codes include ASME, ANSI, EN-1591-1, EN-13445, B31.1.B31.3, B31.8 etc.
Design Calculations
Perform design calculations to determine the vessel dimensions, wall thickness, reinforcement requirements, and other structural details. Consider factors such as internal pressure, external loads, thermal expansion, and seismic forces.
Pressure vessel components
Pressure vessel have various design components of the pressure vessel, including heads (e.g., hemispherical, tori spherical, ellipsoidal), shells, nozzles, flanges, walls, supports, cylindrical, manholes, and closures.
Welding and joining
Specify welding procedures that help to ensure the correction of welding and techniques for joining vessel components, ensuring weld quality and integrity. Consider factors such as material compatibility, joint efficiency, material strength, temperature range and non-destructive testing requirements.
Fatigue Analysis
Fatigue life of critical components subjected to cyclic loading, such as pressure fluctuations, material hardening, over loading, pressure failed and thermal cycling.
Documentations and certifications
Prepare documentation, including design calculations, dimensions, and properties of material, fabrication drawings, inspection reports, analysis parameters and material certificates. Obtain necessary certifications and approvals from regulatory authorities that manage your desire pressure vessel.
Operation and maintenance
Provide guidelines for safe operation that help to secure from unseen dangers and maintenance of the pressure vessel, including inspection intervals, repair procedures, and emergency response protocols.
