instrument training presentation[1].ppt
TRANSCRIPT
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Training/Orientation Instrumentation Section
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General Overview of CompanyCHAIRMAN
MD PARCO CEO PAPCO
DMD
COR. AFFAIRS
DMD
OPERATIONS
G.M
Pipe Line
G.M
Refinery
Manager
Pipe Line
Manager
T/Scada
Manager
S&T(Maint)
Manager
S & T
Manager
C & ES
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Parco Approved Organogram for Instrumentation Section
MANAGER
S&T (MAINT) P. A
C .E MECH C .E INSTRUMENTATION C .E ELECT
PS-1 Sr. Engineer INST – South
PS-1
INST. Engineer
TS-1 / PS-1 / PQ
TechPS-2
TechPS-3
TechPS-4
InstMech
Inst Mech + Helper
InstMech
PS-3
INST. Engineer
PS-2 / PS-3 / PS-4
TechTS-1 Tech
PS-1TechPQ
Inst Mech Inst Mech
TS-2 Sr. Engineer INST – North
TechTS-2
TechTS-3
TechTS-4
InstMech
Inst Mech
TS-2
INST. Engineer
TS-2 / TS-3 / TS-4
Inst Mech + Helper
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Role Of Instrumentation & Control:
To provide the services to maintain the equipment & systems in order and their safe operations by application of field mounted protective devices such as sensors e.g Pressure, Temperature, Level switches & transmitters etc.
INSTRUMENTATION
Instrumentation is a technique which is used to operate / control any system automatically by means of collective/ integrated action of Instruments.
WHY WE USE INSTRUMENTATION:
For System Safety.
Any system / Process operation can be performed manually, but operator can make a mistake due to human error. However Automatic controlled system due to built-in control logic / interlocking ensure the system operation in safe manner.
TYPES OF CONTROLS:
Open Loop Control (Without Feedback)
Close Loop Control (With Feedback)
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Definition of Instrument:
Instrument is a device which is used to determine the quality / quantity of any Substance or Material.
Types of Instruments:
1. Analytical Instruments
1.1 Laboratory Equipments
1.2 Analyzers
1.3 Hydrometer
1.4 PH. Measurement etc.
2. Industrial Instruments
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2.1 Pressure Instruments Pressure IndicatorsPressure TransmittersPressure Switches
Differential Pressure IndicatorsDifferential Pressure SwitchesPressure / Vacuum Air BreatherPressure Control Valve.
Pressure Safety Valves
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2.2 Temperature Instruments
Temperature Indicator
Temperature Transmitter
Temperature Switches
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2.3 Flow InstrumentsFlow IndicatorFlow TransmitterFlow Switches
ULTRASONIC FLOWMETER
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2.4 Level InstrumentsLevel IndicatorLevel TransmitterLevel Switches
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2.5 Types Of Control Valves
Ball Valve
Butterfly Valve
Globe Valve
Needle Valve
Diverting / slit Valve
Converging / Combining Valve
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2.6 Types of Actuators
PneumaticElectro HydraulicMotorized
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Pumping Station Control Philosophy
In Case of Low Suction Pressure:
As per given set parameters controller performs its function accordingly.
Suction pressure should not be less than its set pressure SV-1. If it decreases further, as per logical function PCV should start its closure to maintain the suction pressure MV1. If controller fails to maintain the suction pressure MV-1, the station Low Suction Pressure alarm will be appeared at 2.5 Kg/cm2 resulting in Station Shutdown (SSD).
In Case of High Discharge Pressure:
As per given set parameters controller performs its function accordingly.
High discharge pressure MV-2 should not be greater that its set pressure SV-2. If it increases further, as per logical function PCV should starts its closure to control / maintain the discharge pressure MV-2. If controller fails to maintain the discharge pressure MV-2 the High Discharge Pressure alarm will be appeared resulting in Station Shutdown (SSD).
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GENERAL OVERVIEW OF STATIONS / TERMINALS
Station & Terminals location along Mainline are fully equipped with sophisticated control system and field instrumentation.
Generally Station / Terminal comprises upon the following setup.
1. Control Building
i. Control Room
ii. MV Room
iii. LV Room
iv. MCC (Motor Control Centre)
v. Battery Charger & UPS Room
2. Main Line Pumps / Manifold
3. Storage Tanks
4. Spillage Tanks
i. Slop Tank
ii. Sump Tank
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INSTRUMENT & CONTROL REFERENCE TECHNICAL DOCUMENTS
1.P&IDS
2.Field Wiring Diagram
3.Junction Box Location Plan
4.Area Plot Plan
5.Marshalling Terminal Wiring Diagram (I/O Chart)
6.Hook-up Diagram
7.Equipment Tag List
8. Instrument & Control Cable Trench Details.
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P&ID MAINLINE PUMPS PS-1, KORANGI