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Composition and Principle Analysis of Boiler Ignition System

发布日期: 2018.08.16 Back to list source: Release date: 2018.08.16

Analysis of the composition and principle of the automatic ignition control system for industrial furnaces: The boiler ignition system is composed of a high-energy ignition device, an ultraviolet flame detector , a fire detection cooling air system, an ignition gun propulsion device, and a quick shut-off valve. Among them, high-energy ignition devices and ultraviolet flame detectors are particularly important.

High-energy ignition device:

The boiler ignition system uses a high-energy ignition device, which belongs to a low-voltage capacitor discharge device. Its main structure consists of a high-energy igniter, a high-energy ignition gun and a high-voltage shielded ignition cable.

Its working principle is that the AC power frequency 220v is converted into a DC pulsating current through boost rectification to charge the energy storage capacitor. When the capacitor is full, the discharge current is transmitted to the semiconductor gun nozzle of the ignition gun through the discharge tube, choke coil, shielded cable, etc., forming a high-energy arc spark. When the ignition is stopped, the residual charge on the capacitor is discharged through the bleeder resistor.

RXGD-12高能点火器

UV flame detector:

The ultraviolet flame detector can continuously detect the flames of various gas boilers for long-term continuous monitoring of the boiler safety. Its main structure consists of a probe and a processor, and the probe and the processor are connected by a two-core twisted shielded cable. Its working principle is that a quartz dust-proof lens is installed in front of the probe of the ultraviolet flame detector, and the light signal emitted by the flame is transmitted to the UV photosensitive tube at the tail of the probe, and the photoelectric conversion is completed by the UV photosensitive tube. The signal transmission between the probe and the processor adopts a current transmission method to improve the anti-interference ability, and is transmitted to the processor through a two-core twisted pair shielded cable. The processor processes the signal from the probe through a matching circuit, a Schmitt trigger, and a monostable trigger circuit, then determines whether there is fire or not, and gives corresponding instructions and outputs.

RXZJ-102紫外线火焰监测器

The automatic ignition control system is mainly used to control the ignition operation of the boiler ignition equipment. It can realize the automatic ignition of the boiler (accepts the program-controlled ignition instruction of the centralized control room), and can also perform single-step operation on the spot of the ignition equipment, and feedback the working position and working condition signals of each unit equipment to the control room.

Xi'an Combustion Thermal Energy has a technical team with many years of practical experience in the combustion, electrical, mechanical, and automation industries, and cooperates with many universities and research institutes in the field of thermal automation in the country to explore and continuously absorb domestic and foreign technologies to provide users with energy. Comprehensive solutions for different fields of use. Xi'an Ranxin Thermal Energy Service Hotline: 029-68822180

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Xi'an Ranxin Thermal Energy Engineering Technology Co., Ltd., located in Xi'an, is a high-tech company engaged in the design, development, production, sales, installation and commissioning of electronic ignition equipment, flame detection equipment, and automatic control systems for ignition and combustion processes. .

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