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Process Control Instrumentation I - Session 3. Most Common Control Elements.

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Presentation on theme: "Process Control Instrumentation I - Session 3. Most Common Control Elements."— Presentation transcript:

1 Process Control Instrumentation I - Session 3

2 Most Common Control Elements

3 Instrumentation I - Session 3 Chapter 3 – Objectives (page 1) 1. Define terms associated with level and level instruments: n level n ullage (outage) n inage n direct/indirect measurement n interface level n meniscus n density n hydrostatic head pressure

4 Instrumentation I - Session 3 Chapter 3 – Objectives (page 2) 2. Identify the most common types of level- sensing/measuring devices used in the process industry: n gauge/sight glass n float n tape gauge n differential pressure cell n bubbler n displacer n ultrasonic device n nuclear device 3. Describe the purpose and operation of various types of level-sensing/measuring devices. 4. Describe the relationship between temperature and level control as it relates to the density of liquid. 5. Describe the relationship between temperature and level control as it relates to the volume of a liquid.

5 Instrumentation I - Session 3 Level?

6 Instrumentation I - Session 3 Percent Level Measurement, Ullage(Outage) and Inage

7 Instrumentation I - Session 3 Point and Continuous Level Measurement

8 Instrumentation I - Session 3 Direct and Indirect Level Measurement

9 Instrumentation I - Session 3 Interface

10 Separator Instrumentation I - Session 3 www.emersonprocessxperts.com

11 Instrumentation I - Session 3 Meniscus

12 Instrumentation I - Session 3 Liquid Head Pressure

13 Instrumentation I - Session 3 Gauge/Sight Glass: Tubular Type

14 Instrumentation I - Session 3 Gauge/Sight Glass: Flat Glass Level Gauges

15 Instrumentation I - Session 3 Float

16 Instrumentation I - Session 3 Tape/Tape Gauge

17 Instrumentation I - Session 3 Differential Pressure (d/p) Cell

18 Instrumentation I - Session 3

19 Bubbler http://apcs.net.au/

20 Instrumentation I - Session 3 Displacer

21 Instrumentation I - Session 3 Ultrasonic/Radar Device

22 Instrumentation I - Session 3 Nuclear Device

23 Instrumentation I - Session 3 Load Cell

24 Instrumentation I - Session 3 Level, Temperature, Density and Volume

25 Instrumentation I - Session 3 Chapter 5 – Objectives (page 1) 1. Define flow and terms associated with flow: n fluids (gases and liquids) n laminar n turbulent 2. Define terms associated with flow measurement: n direct and indirect flow measurement n positive displacement flow measurement n percent flow rate n volumetric flow units n mass flow units.

26 Instrumentation I - Session 3 Chapter 5 – Objectives (page 2) 3. Identify the most common types of flow sensing/measuring devices used in the process industry: n orifice plate n venturi tube n Flow nozzle n pitot tube n annubar tube n rotameter n electromagnetic meter (Magmeter) n turbine meter n mass flow meter 4. Describe the purpose and operation of flow sensing/measurement devices used in process industry. 5. Explain the difference between total volume flow, flow rate and volumetric flow.

27 Instrumentation I - Session 3 Flow and Fluids

28 Instrumentation I - Session 3 Laminar and Turbulent Flow

29 Instrumentation I - Session 3 Flow Measurement n Direct and indirect flow measurement n Positive displacement flow measurement n Percentage flow rate n Volumetric flow units n Mass flow units

30 Flow – Primary Flow Sensing and Measurement Instruments n Orifice plates n Venturi tubes n Flow nozzles n Pitot tubes n Annubr tubes (multiport pitot tubes) n Rotameters n Electromagnetic meters n Turbine meters n Mass flow meters Instrumentation I - Session 3

31 Orifice Plate

32 Conical orifice plates Instrumentation I - Session 3

33 Flow Nozzle

34 Instrumentation I - Session 3 Venturi Tube

35 Instrumentation I - Session 3 Pitot Tube

36 Instrumentation I - Session 3 Annubar Tube or multiport pitot tubes TM

37 Instrumentation I - Session 3 Rotameter

38 Instrumentation I - Session 3 Electromagnetic Meter (Magmeter)

39 Instrumentation I - Session 3 Turbine Meter

40 Instrumentation I - Session 3 Mass Flow Meter

41 Instrumentation I - Session 3 Differential Pressure (D/P) Transmitter


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