Seven Star L.L.C

Fire & Gas Detector

Flame Detection Sensors
Petrochemical plants and other industrial environments utilizing explosive or combustible gas and liquids have a heightened risk of fire and other catastrophic events.
Flame detection sensors prevent catastrophic fires by detecting flames resulting from vapors from gasoline, hydrogen, solvents, alcohols, ethylene, and other gases and substances. Detection occurs at the exact moment of ignition, which allows for a faster response than standard fire detection devices.
The sensors work by using ultraviolet, multi-spectrum infrared, ultraviolet/infrared, and visual imaging to detect the electromagnetic radiation emitted by flames. Based on the configuration you select, the flame detection sensors react by sounding a warning signal, shutting off a fuel line, or activating a fire suppression system.

Frequently Asked Questions

What are the primary types of industrial fire and gas detectors?
Industrial facilities rely on a combination of catalytic bead and infrared sensors for combustible gases, electrochemical sensors for toxic gases, and multi-spectrum infrared (IR) or ultraviolet (UV) detectors for flame recognition. This multi-layered approach ensures comprehensive detection across various hazardous scenarios.
How do infrared (IR) point gas detectors operate?
IR point gas detectors measure the absorption of specific infrared light wavelengths by hydrocarbon gas molecules passing through the optical path. They offer significant advantages over catalytic sensors, including immunity to chemical poisons, fail-safe operation, and the ability to operate in oxygen-depleted environments.
What is the advantage of using ultrasonic gas leak detectors (UGLD)?
Ultrasonic gas leak detectors detect the high-frequency acoustic noise generated by escaping pressurized gas, responding instantly regardless of wind direction or gas dilution. They provide highly reliable, early warning of leaks in open, well-ventilated areas where traditional point detectors may be ineffective.
Why are multi-spectrum IR flame detectors preferred in harsh industrial environments?
Multi-spectrum IR flame detectors analyze multiple infrared wavelengths to distinguish actual flames from false alarm sources like hot machinery, sunlight, or welding arcs. They provide exceptional sensitivity and a long detection range even in the presence of heavy smoke, oil films, or severe weather conditions.
What testing frequency is recommended for safety-critical fire and gas detectors?
Safety-critical detectors should undergo regular functional bump tests to verify sensor response, along with periodic full calibrations using certified test gases or flame simulators. The exact frequency is typically dictated by site-specific risk assessments, manufacturer recommendations, and regulatory compliance requirements.