The burner ultraviolet flame detection bulb is a flame detection device specially designed for the burner. It determines whether the flame exists by detecting the ultraviolet (UV) radiation emitted by the flame (usually in the 185~260nm band). It is widely used in the safety control system of gas-fired boilers, industrial burners, heat treatment furnaces and other equipment.

operational principle

Ultraviolet detection: When a burning flame (such as natural gas, liquefied gas, fuel oil, etc.) is burning, it will emit ultraviolet light of a specific band. The UV sensitive element (such as photoelectric tube or solid state sensor) in the bulb detects this signal.

Signal conversion: When a sufficient intensity of UV radiation is detected, the detection bulb outputs an electrical signal (switching or analog) that triggers the burner's safety control circuit (such as maintaining ignition or cutting off fuel supply).

Core features

High sensitivity: fast response to flame UV signal (millisecond level), to ensure combustion safety.

Strong anti-interference ability: only sensitive to flame UV radiation, not affected by visible light, infrared or high temperature radiation.

Strong environmental adaptability: high temperature resistant, dustproof, corrosion resistant, suitable for industrial combustion environment.

Long life design: high quality models can work stably for tens of thousands of hours, reducing maintenance requirements.