Sobre a tecnologia de detecção de chamas
Como determinar os produtos ideais para suas necessidades de monitoramento de risco de incêndio.
Como determinar os produtos ideais para suas necessidades de monitoramento de risco de incêndio.
As chamas emitem radiação eletromagnética nos comprimentos de onda infravermelha (IV), luz visível e ultravioleta (UV), dependendo da fonte do combustível. Como algumas chamas são invisíveis a olho nu, os detectores de chamas modernos utilizam tecnologias óticas para detectar as chamas. As tecnologias de detecção ótica de chamas foram desenvolvidas utilizando UV, UV/IV e infravermelho multiespectro para detectar chamas de diferentes fontes de combustíveis. Esses detectores de chama contam com a detecção na linha de visão da radiação emitida nas faixas do espectro para determinar se a chama é real.
Considere se a chama potencial que você está tentando detectar será de hidrocarboneto ou não orgânica. Com chamas de hidrocarboneto, uma combinação de metano e oxigênio produz dióxido de carbono e água. Esse tipo de incêndio cria uma leitura de sinal UV a 0,2 mícrons e leitura de sinal IR a 2,7 mícrons e 4,5 mícrons. As chamas de hidrogênio produzem somente moléculas de água e, portanto, não vemos o mesmo pico de CO2 que uma chama de hidrocarboneto produz.
Condições ambientais como luz solar, raios, objetos quentes e outras fontes não inflamáveis podem causar alarmes falsos. É fundamental que o detector de chamas seja capaz de distinguir entre um incêndio real e uma fonte de radiação falsa.
As tecnologias de detecção de chamas reconhecem com eficácia uma chama a diferentes distâncias. É importante utilizar um detector que possa operar dentro da sua faixa de detecção.
Os detectores de chamas ópticos apresentam um intervalo de "campo de visão", semelhante às lentes em uma câmera. Levar em consideração o intervalo do campo de visão ajudará a determinar quantos detectores são necessários para atender a uma instalação ou a uma área específica dentro da instalação.
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Optical Flame Detection for the Process Industry
There's no such thing as "too safe" when operating storage tank farms, especially when these tank farms are located near urban areas. Next generation Rosemount 975 Flame Detectors help detect fires in tank farms to keep your operation running smoothly and safely. A full fire prevention solution helps ensure more uptime, extended asset life and minimized operating costs. Avoid devastating results of personnel injuries and equipment damage.
Oil wells have the potential to create flammable vapors and gases, increasing the risk of fire or explosions which can occur without warning. Next generation Rosemount 975 Flame Detectors provide continuous flame detection even in extreme temperatures and harsh winds to keep personnel and equipment safe.
Various hazards are associated with loading and unloading flammable and toxic products, including accidental release and potential of ignition. Next generation Rosemount 975 Flame Detectors continuously provide ultra-fast flame detection response speeds - as low as 20 ms – to help protect personnel and equipment
Due to the constant high stress on compressor machinery and potential for fires, compressor stations require continuous flame monitoring. Next generation Rosemount 975 Flame Detectors detect fires with ultra-fast response speeds as low as 20 milliseconds.
Aircraft hangars come with unique challenges as highly combustible aviation fuel leaks can occur. Next generation Rosemount 975 Flame Detectors help protect personnel and costly equipment, by detecting fuel and gas fires at long distances and over wide areas. Flame detectors are installed at the structure's corner and at ground level to help ensure the detectors' field of view covers any area where fire may occur.
Food and beverage processing and storage facilities present unique safety risks. Next generation Rosemount 975 Flame Detectors protect personnel and equipment, detecting fires with a high immunity to false alarms. With a durable stainless steel body and heated optics to eliminate condensation and icing, operating temperatures range from -76 °F to +185 °F (-60 °C to +85 °C) and cover areas up to 300 ft. (90 m).
Fire is a constant possibility at waste management sites as many types of waste are readily combustible. Next generation Rosemount 975 Flame Detectors continuously monitor and quickly detect fires, while protecting personnel and equipment. Rosemount 975 Flame Detectors detect fires at long distances and over wide areas with a high immunity to false alarms and ultra-fast response speeds - as low as 20 milliseconds. Flame detectors are strategically installed in multiple locations, ensuring the detectors' field of view covers any area where a fire may occur.
