Comp Interlocks
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Transcript of Comp Interlocks
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COMPRESSOR SCHEMATIC
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VIBRATION MONITORING
![Page 3: Comp Interlocks](https://reader033.fdocuments.us/reader033/viewer/2022052402/56d6bdb01a28ab30168eef74/html5/thumbnails/3.jpg)
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TEMP MONITORING
![Page 4: Comp Interlocks](https://reader033.fdocuments.us/reader033/viewer/2022052402/56d6bdb01a28ab30168eef74/html5/thumbnails/4.jpg)
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DCS
PLC
GOVERNOR
CONTROL
OVER SPEED
DETECTION
VIBRATION
TEMP
SYSTEM
ANTISURGE
SYSTEM
ESD
MCC
LOCAL
PANEL
LOCAL
PANEL
CONTROL SYSTEMS BLOCK DIAGRAM
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LO SYSTEM
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LEVEL GAUGE
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PRESSURE SWITCH
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TRANSMITTER
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TEMP SWITCH
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PRESSURE GAUGE WITH SWITCH
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RTD MOUNTED ON BEARING PAD
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VIBRATION PROBE
SPEED PROBE
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SEAL SYSTEM
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PLC
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+ 24 Vdc
RELAY
NO CONTACT
NC CONTACT- 24 Vdc
SWITCH
PRESSURE
TEMP
TRIP RELAY
LEVEL
TRIP
SOV
ALAR
RELAY LOGIC DCS
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Surge control Diagram:
The diagram below shows the performance map of a compressor with the surge
control lines .
1. SURGE L!T L"E #.SURGE $%"TR%L L"E
&.'ER(%R!)"$E $UR*ES +.%'ER)T"G '%"T
Pd
------
Ps
2
3
FLOW
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A!"s#$%& C'!$'( S)s!&*
Compressor
Antisurge Valve
(T'T'T(TTT TT
ANTI SURGE
CONTROLLER
(,