beredit.blogg.se - Drawing pipe in autocad

Lay out the piping system as shown on the study drawing. This procedure will allow the designer to explore all requirements necessary for design, operation, and maintenance prior to the final layout.Ĩ. Prepare a study drawing of each individual piping configuration in the facility.

Show all piping and instrumentation connections (nozzles, couplings, etc.) on equipment.ħ.

Represent equipment centerlines, outlines, and foundations with thin dark lines.

Show only enough detail on equipment outlines to provide a generalized description.Locate foundations for buildings, pipe rack columns, and mechanical equipment from the coordinates used to develop the foundation location drawing and dimensions provided on the equipment foundation drawing. Place a north arrow in upper right-hand corner of the drawing.Ĥ. Fill in drawing number and title block information.ģ. Define proposed area outline or drawing match lines.Ģ. The following are the recommended procedures for layout of piping arrangement drawings.ġ. Therefore a systematic layout procedure is recommended to ensure all necessary items are included. Piping arrangement drawings are quite complex and congested. Many different layout and design techniques can be used depending on client requirements, company policy, budget limitations, manpower, and available computer software. To develop a piping arrangement drawing, the designer must be familiar with company and client job specifications and requirements of the current project.

list of special requirements, if any, for the project LAYOUT PROCEDURES.

equipment (vendor) drawings and foundation drawings.

INFORMATION SOURCES FOR PIPING ARRANGEMENT DRAWINGSĪ piping designer must assemble the various reference drawings and documents needed to lay out the piping arrangement drawing. How can the drawing be simplified? How will construction, repairs, and routine maintenance be performed in this unit? Has enough room been provided for access between equipment? Foremost on a designer's mind should be the safety and protection of plant operators and maintenance personnel. The time invested in learning company specifications, layout procedures, and equipment requirements makes the designer a valuable employee.Īs the arrangement drawing is being developed, a piping designer should consider the following: Only after many years of experience does the drafter become a piping designer. With so much required information on a drawing, it is easy to understand why the piping arrangement drawing must be neat, accurate, and legible. Information such as nozzle number, size and pound rating, orientation, elevation, and projection is also included. A nozzle schedule is included that contains detailed information about all piping and instrument connections for every piece of equipment. Ladders and platforms are also shown on equipment and structures that have them.

Instrumentation symbols are included to indicate type, position, and orientation for accessibility by plant personnel. Written information placed on the arrangement drawing includes equipment coordinates, identification numbers, elevation callouts, line numbers, flow arrows, and dimensions establishing pipe locations. Once locations for foundations and equipment have been established, piping configurations are added to the drawing with the aid of symbols that represent fittings, flanges, and valves. It identifies all structural supports such as pipe racks, equipment structures, columns, braces and any fireproofing they may have.

It shows all mechanical equipment and vessels in the unit and the pipes connecting them, including manholes, ladders, platforms, and davits. The piping arrangement drawing evolves from the foundation location and equipment location drawings. Information on the arrangement drawing aids in the development of the piping model and isometric drawings. This plan view drawing is a major source of information used in the fabrication and erection of the piping facility. The arrangement drawing is the most significant drawing developed by a piping designer.