Knowledge of dry goods in flame detectors

Recently, many children have paid more attention to the knowledge of flame detectors. Today, the editor has compiled relevant information for everyone, hoping to bring help.

1. First of all, what is a flame detection device?

Flame detectors are important machinery and equipment in the boiler furnace safety management system. Their role is to conduct real-time monitoring of the combustion operation based on the ignition characteristics of the flame. Once the flame ignition does not meet normal standards or breaks out, data signals are obtained using a certain method, and the fuel supply is terminated when the heating furnace fires. It generally consists of two components: a camera and a signal converter.

2. So what is the basic principle of its testing?

Igniting flames has various characteristics. Xuzhou Jieneng Electric Power Equipment Co., Ltd. introduces that such as heat generation levels, hydrolysis conditions, radiation sources at different parts of the flame, spectrometers, pulse or flicker conditions of the flame, gas pressure, speakers, etc., can be used to test the "yes" or "no" of the flame. However, gasoline, diesel, coal, or fossil fuels used in industrial production can radiate a certain amount of ultraviolet and a large amount of infrared rays, and the spectral range involves infrared, visible, and ultraviolet rays.

Therefore, in industry, the "presence" or "absence" of flame is detected based on a spectrometer. Spectrometers with different energy sources are characterized by the fact that the flame contains a large amount of infrared light, a portion of visible light, and a small amount of ultraviolet light, while the raw coal flame contains a small amount of ultraviolet light, a rich variety of visible light, and a small amount of infrared light. Vapor flames are rich in ultraviolet, infrared, and less visible light. Users can choose a suitable flame detector based on their own energy characteristics.

3. Types of flame detectors

From the perspective of detection methods, it can be divided into touch flame detectors and non-contact flame detectors. Most touch flame detectors are hydrolytic flame detectors, while non-contact flame detectors can be divided into ultraviolet flame detectors, infrared flame detectors, and red ultraviolet composite flame detectors.

In addition to being able to use a single flame monitoring device, you can also find manufacturers to customize matching flameout protection devices. The function of the flameout protection device is to disconnect the relay automatically when the flame is accidentally extinguished, and the sensing probe of the flameout protection device cannot magnetically sense the flame data signal. If the control panel cannot obtain the data signal, the relay will be turned off, resulting in the disconnection of the natural gas safety channel.