When evaluating advanced flame detection technologies, the debate between ultraviolet (UV) and infrared (IR) sensors has become increasingly critical. At Shanghai Gewei Electronic Safety Equipment Co., we specialize in precision flame detection systems using cutting-edge UV/IR and multi-spectral technologies integrated with AI analysis. Our solutions ensure accurate flame identification while minimizing false alarms – a crucial balance for industrial environments where safety is non-negotiable.
UV flame detection excels in early warning capabilities by identifying the unique UV radiation emitted during hydrocarbon fuel combustion. This technology responds almost instantaneously to open flames, making it ideal for rapid intervention scenarios. Our UV-based flame detectors utilize 32-bit high-precision processing chips with imported low-noise UV sensors, achieving axial detection distances exceeding 40 meters while operating at -40°C to 70°C. Despite their sensitivity, UV systems require periodic maintenance due to lens fouling risks, especially in dust-prone industrial facilities.
In contrast, IR technology detects infrared radiation signatures produced by the heat of flames. Our dual-spectrum IR models incorporate pyroelectric sensors that distinguish between actual flames and heat sources from steam, engines, or hot surfaces. This selective filtering reduces false trigger rates dramatically. The GW800IR2 series exemplifies this advantage with its 110° detection angle and 50-meter range capability, thanks to advanced algorithms that ignore non-flammable IR signatures. For specialized applications like chemical plants, the triple-spectrum GW810IR3 combines UV and IR channels for unparallelled accuracy.
The synergy of UV and IR technologies addresses individual limitations effectively. While UV sensors excel in speed but struggle with sunlight interference, IR compensates with superior daylight performance and weather resistance. Our flagstone GW820UVIR3 series leverages this complementary approach, using multi-spectral processing to detect flickering UV signatures matched by intense IR radiation patterns. This hybrid methodology achieves SIL3-certified reliability, with false alarm rates reduced to less than 1 occurrence per year.
Environmental adaptation marks another critical differentiator. Our flame detectors incorporate self-compensating algorithms that adjust sensitivity parameters automatically, responding to humidity, ambient temperature fluctuations, or gradual contamination of optical elements. The GW100UVIR2 model exemplifies this resilience in harsh conditions, maintaining operational precision within 0-95% humidity ranges. For tunnel applications where particulate accumulation occurs, the lens-fouling detection system in the GW300UVIR3 series triggers maintenance alerts before detection capabilities deteriorate.
Installation flexibility represents another decisive factor. Our product range accommodates diverse industrial requirements: compact 60mmx60mm units for space-constrained machinery enclosures, industrial-grade stainless steel variants for corrosive environments, and explosion-proof Ex d IIC T6 Gb housings for hazardous zones. The modular interface designs support both relay and 4-20mA output configurations, enabling seamless integration with existing PLC systems and IoT cloud platforms.
Operational longevity underscores our technological commitment. With corrosion-resistant cast aluminum housings rated IP66/IP67 and operating temperatures spanning from arctic (-40°C) to desert conditions (70°C), our detectors minimize lifecycle costs through minimal maintenance requirements. The GW820 series offers the most extended reach at 60 meters, while maintaining sub-second response times in high-speed火焰 emergency scenarios.
Ultimately, the UV versus IR debate hinges on specific application parameters. For hydrocarbon-rich environments like petroleum refineries, UV detection provides rapid response to small flare-ups. Conversely, facilities with infrared oven processes benefit from IR systems’ immunity to hot surface interference. The optimal solution emerges through spectral integration – demonstrated by our GW810UVIR3 model designed for chemical plants, where multi-spectral technology prevents boiler false triggers while detecting actual combustion events.
At Gewei, we engineer solutions rather than sell products. Our flame detection ecosystem combines sensors with machine learning algorithms that continuously adapt to hazard profiles. Each detector undergoes rigorous testing – from SIL2/SIL3 functional validation to environmental simulation chambers – ensuring compliance with international standards while maintaining operational integrity across product lifecycles. As industries evolve toward smarter fire safety systems, our UV/IR hybrid philosophy represents not just technology, but strategic risk mitigation.