Pressure Piping Code (ASME B31)
Introduction
Within industry, pipes are a system of pipes used to transport fluids (liquids and gases) from one place to another. Pipe design engineering studies the efficient transport of fluids.[1][2].
Industrial process piping (and accompanying in-line components) can be made from wood, fiberglass, glass, steel, aluminum, plastic, copper, and concrete. In-line components, known as fittings, valves and other devices, typically sense and control the pressure, flow rate and temperature of the transmitted fluid, and generally fall within the field of piping design (or piping engineering), although sensors and automatic control devices may, alternatively, be treated as part of instrumentation and control design. Piping systems are documented in piping and instrumentation diagrams (P&ID). If necessary, pipes can be cleaned by the cleaning process. tubes").
Piping sometimes refers to piping design, the detailed specification of the physical layout of piping within a process plant or commercial building. In earlier days, this was sometimes called drafting), technical drawing, engineering drawing and layout, but today it is commonly performed by designers who have learned to use automated computer-aided drafting or computer-aided design (CAD) software.
Plumbing is a piping system that most people are familiar with, as it is the form of fluid transportation used to provide drinking water and fuel to your homes and businesses. Plumbing pipes also remove waste in the form of sewage and allow the venting of sewage gases to the outside. Fire sprinkler systems also use pipes and can carry potable or non-potable water or other firefighting fluids.
Pipelines also have many other industrial applications, which are crucial for moving raw and semi-processed fluids to refine them into more useful products. Some of the more exotic materials used in pipe construction are Inconel, titanium, chrome-molybdenum and various other steel alloys.
Engineering subfields
In general, industrial piping engineering has three main subfields:.
Stress analysis
Process piping and power piping are generally checked by pipe stress engineers to verify that routing, nozzle loads, hangers and supports are properly placed and selected so that the allowable pipe stress is not exceeded under different loads, such as sustained loads, operating loads, pressure test loads, etc., as stipulated by ASME B31, EN 13480, GOST 32388, RD 10-249 or any other applicable code and standard. It is necessary to evaluate the mechanical behavior of the pipeline under regular loads (internal pressure and thermal stresses) as well as under cases of occasional and intermittent loading such as earthquake, strong wind or special vibration and water hammer.[4] This evaluation is generally carried out with the help of specialized computer programs (finite elements) for stress analysis") of pipelines such as AutoPIPE,[5] CAEPIPE,[6] CAESAR,[7] PASS/START-PROF,[8] ROHR2.[9].