Guardian of Industrial Safety: Composite Explosion-proof Integrated Flame Detector

Guardian of Industrial Safety: Infrared and Ultraviolet Composite Explosion-proof 

Integrated Flame Detector

The purple and infrared composite explosion - proof integrated flame detector skillfully combines ultraviolet (UV) and infrared (IR) detection technologies, as if endowing it with "double intelligent eyes", enabling it to capture flame characteristic signals.

For the ultraviolet detection part, a high - sensitivity imported ultraviolet phototube is usually used, such as a common phototube that responds to ultraviolet light in the narrow band of 185 - 260nm. Ultraviolet light in this band is a typical product of flame combustion, while interference sources such as sunlight and high - temperature furnace radiation have almost no output in this band. When the specific ultraviolet light generated by the flame irradiates the ultraviolet phototube, the photoelectric effect will occur, generating an electrical signal, which is amplified and processed to determine the presence and intensity of the flame.

In terms of infrared detection, multiple infrared sensors with different wavelength bands are generally equipped. For example, some sensors operate in the 4.3 - 5.0μm wavelength band. This band is sensitive to the emission spectrum of carbon dioxide generated by the combustion of substances and can detect the combustion of hydrocarbons in the flame.

Flame combustion is not continuous and stable, but has a flickering characteristic, and its flickering frequency is usually in the range of 2 - 25 Hz. The purple and infrared composite flame detector utilizes this characteristic, combines the proprietary dual - band infrared and ultraviolet composite detection circuit and advanced software algorithms, and conducts in - depth data analysis and operation processing on the signal change ratio and corresponding relationship collected by the sensors.

Application scenarios: Flame combustion scenarios such as various gas - fired heating furnaces, heat - transfer oil furnaces, roasters, industrial incinerators, drying kilns, and oil - field water jacket furnaces.