Caterpillar TAURUS 70 - Manual (Page 50)

Turbomachinery Package Specification Taurus 70 Compressor Set and Mechanical Drive
The intent of the enclosure design is to comply with U.S. Occupational Safety and Health
Administration (OSHA) standards for eight-hour employee exposure. Transmission loss
of the panels in decibels is available upon request. Further information is available in
Solar’s publication SPNP, “Noise Prediction Guidelines for Industrial Gas Turbines.”
12.2.8 Exterior Connections
Connections for oil vent line, fire and gas suppression systems, and gas turbine air inlet
and exhaust are terminated outside the enclosure.
12.2.9 Fire and Gas Detection System
Enclosed packages must include a fire and gas control system. The fire and gas system
supplied by Solar (Figure 21) provides gas monitoring, fire detection, and extinguishing
agent release using an advanced distributed architecture to monitor gas, heat, and
optical flame detectors. The system communicates with the Turbotronic 4 control system
to initiate a shutdown if a fire or a high gas level is detected. On the package exterior,
indicator lights, strobe lights, and an alarm horn provide system status. A keyswitch is
provided to inhibit the system and a push button switch is provided to manually release
the fire-extinguishing agent.
The primary fire detection system uses multi-spectrum infrared (MIR) flame detectors.
The system includes an automatic optical integrity feature to provide a continuous check
of the optical surfaces, detector sensitivity, electronic circuitry of the detector-controller
system, and automatic fault identification with digital display of system status in numerical
code. The secondary detection system consists of rate-compensated thermal detectors.
The two detection systems act independently in detecting and reporting a fire.
OPERATOR PANEL
EQP
DCIO
MIR MIR
MIR MIR
IR IR
TD TD
TD TD
Turbotronic 4
Control
Processor
Turbotronic 4
Back-up
Shutdown
System
Turbomachinery Package
To / From Customer
Supervisory System
STROBES / HORN
FIRE
SUPPRESSION
SYSTEM
AUTO
INHIBIT
DISCHARGED
AUTO / INHIBIT
MANUAL RELEASE
LON
DCIO
MIR = Multi-spectrum IR Flame Detector
TD = Thermal Detector
IR = IR Gas Detector
LON = Local Operating Network
ControlNet
Figure 21. Typical Fire and Gas System
© 2009 Solar Turbines Incorporated. All rights reserved. TPS70CSMD/309
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