Piping & Instrument Diagrams - AIChE
Piping & Instrument DiagramsBarry M Barkel PE
Communication for Engineers VerbalAssignments, Instructions, updates WrittenReports, Procedures, Specifications MathematicalCalculations, data, Performance statistics SymbolicDesigns, Process Documentation
Drawings are Engineering’sINTERNATIONAL LANGUAGEengineers all over the world can understand them
TYPES of DRAWINGS Process Flow Diagrams: What a Process Does Piping & Instrument Diagrams: How it works Layout Drawings: How it looks Mechanical Drawings: How to build itConstruction Drawings:
dwg1
Uses of P&IDs Develop Operational methodology Develop Safety Philosophy and Design Develop Control Philosophy Basis for Control Programming Communication Document for Project
Uses of P&IDs Serves as Design Basis for:Equipment DesignPiping DesignEstimatingPurchasing Used to evaluate construction progress Training basis for Operational Personnel
Characteristics of P&IDs Grouped by specific sections of the process Schematic; NOT a scaled layout Clear; uncluttered Systematic; uniform Usually confidential Revised often with Revisons clearly identified
Elements of a P&ID Equipment & valves identified Instrumentation type & location identified Path between instruments & control devices indicated Piping size and type identified for all lines
Identification of Equipment Identification by typew/ specific code designation.ie TKw/ a specific standardized shape Identification by numberw/ specific item number ie TK 101 Identification by namew/ what the unit is called. ie methanol tank
Valve Identification Identification by type
Instruments Instruments may be: Indicatorsor Part of a control system Instruments often have several components:sensing elementstransmitterscontrol elements
Some Instrument DesignationsP pressureT TemperatureF FlowL LevelI indicatorC controllerS switchE elementT transmitterG gage ISA designations usually used
Instrument ConfigurationTT1101PI106TE101
Control Paths Hardwired “Computer program”
Piping Designations Line Codes Spec breaks
Line Codes SizeServiceMat’l of Constr or Piping SpecInsulation amount and Spec
Pipe size“Nominal diameter”1”, 2 1/2”, 4” etc.
Pipe ServiceCoded to a designation shown on P&IDsExamples: Methanol- MeReactor Product Stream- RxP
Material of Construction GenericExamples- PVC316L S/S Company or Project SpecificationExamples- PP1( a specification covering the materials andjoining methods for PVC plastic pipe)
Insulation Code Thickness of insulation ( inches) Type or Insulation SpecificationExample- F ( fiberglass)- IN 9 ( Project Specification forCalcium Silicate System) Tracing CodeExamples- S (steam)E (electric)
Total Line CodeExample2” dia., Type 304 s/s pipe in acetic acidreactor discharge service, insulated with1” of fiberglass insulation2”AARX-304S/S-1”F
Spec Breaks A Line /Code changes every time ANYELEMENT in the code changesIE3”AARX-304L S/S-1”F -- 3”AARX-304L S/Sat the point where the fluid has cooled enough toeliminate the insulation.3”AARX-304L S/S-1”F3”AARX-304L S/SSpec Breaks are shown as --------------]-------------
Notes on P&IDs Normally read LEFT to RIGHTTOP to BOTTOM The Stream No.s, Ts, Ps and Flowsfrom the PFD do NOT appear on aP& ID Equipment numbers are the same as onthe corresponding PFD
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Drawings are Engineering’s INTERNATIONAL LANGUAGE engineers all over the world can understand them. TYPES of DRAWINGS Process Flow Diagrams: What a Process Does Piping & Instrument Diagrams: How it works Layout Drawings: How it looks Mechanical Drawings: How to build it Construction Drawings: dwg1. Uses of P&IDs Develop Operational methodology Develop Safety .
a time period. There are seven behavioral diagrams: Use Case Diagrams, Activity Diagrams, State Machine Diagrams, Communication Diagrams, Sequence Diagrams, Timing Diagrams and Interaction Overview Diagrams. UML 2 has introduced Composite Structure, Object, Timing and Interaction Overview diagrams.
node diagrams (N diagrams), node-link diagrams (NL diagrams) and node-link-groups diagrams (NLG diagrams). Each of these diagrams extends the previous one by making more explicit a characteristic of the input data. In N diagrams, a set of objects is depicted as points in a two or three dimensional space; see Figure1a. Clusters are typically .
piping classes and the numerous piping specifications necessary to fabricate, test, insulate, and paint the piping systems, is titled either the piping material engineer or the piping spec(ification) writer. 1.2. Job Scope Whatever the title, the piping material engineer (PME) is a very important person within the Piping Design Group and .
liquid process piping systems, engineering calculations and requirements for all piping systems, basics of metal piping systems and thermoplastic piping systems. In Part 2 - the course will continue from Part 1 and review the basics of Rubber and Elastomer Piping Systems, Thermoset Piping Systems, Double Containment
2.0.3 Process Flow Diagrams versus Piping and Instrumentation Diagrams Piping and instrumentation diagrams diverge from process flow diagrams (PFD) through many facets. Provided by the International Society of Automation, “[A process flow diagram is a] drawing the shows the general proc
American Institute of Chemical Engineers ( AIChE ): . PROCESS TECHNOLOGY CONFEREN. CE. AICHE SOUTHWEST. 12TH 2020. Held 1-2 October 2020, Online. Softcover 30 pages 9781713821229 . CONFERENCE AT THE 2020 AICHE SPRING MEETING AND 16TH GLOBAL CONGRESS ON PROCESS SAFETY .
AIChE Catalysis and Reaction Engineering Practice Award T he Catalysis and Reaction Engineering (CRE) Division of the American Institute of Chemical Engineers (AIChE) is delighted to announce that Rostam J. Madon of BASF Catalysts, LLC has been selected as the recipient of the AIChE CRE Division Practice Award for 2009. This award recognizes .
Leadership is a new requirement and is defined in its own section within the new ISO 14001:2015 standard. This means that top management throughout the organisation are expected to take a more hands on approach to the EMS. This will ensure companywide motivation and commitment towards goals, a continued focus on improvement, and the effectiveness of the EMS. Clause 6. ‘Planning’ - Risk and .
