An explosion-proof safety industrial furnace

Abstract

An explosion-proof and safe industrial furnace, including a furnace bottom, a furnace wall, a furnace roof, a furnace door, a thermal storage combustion system hanging on the furnace wall, and a central control system; wherein, the thermal storage combustion system includes a fuel delivery pipeline, An igniter and an explosion-proof safety guarantee system; the explosion-proof safety guarantee system includes a flame probe that is close to the fuel delivery pipeline and forms a certain angle with the fuel delivery pipeline, and the detection point of the flame probe is located at the fuel outlet of the fuel delivery pipeline. The explosion-proof safe industrial kiln of the invention overcomes the safety weakness of the combustion system of the diffused regenerative combustion industrial furnace, can accurately judge the flame state of the system, and ensure the safe operation of the system.

Description

technical field [0001] The invention belongs to the field of industrial furnaces, in particular to a safe industrial furnace with an explosion-proof system. Background technique [0002] In my country's industrial furnaces, premixed regenerative combustion technology is widely used. However, in recent years, diffuse regenerative combustion technology has been rapidly popularized and applied due to its better energy-saving effect and lower pollutant emissions. However, the diffuse regenerative combustion system uses the furnace as a combustion chamber, and the fuel is sent into the furnace through the fuel delivery pipe, and then entrained with the combustion-supporting air entering the furnace on the left or right (the other side exhausts the smoke) and gradually mixes and burns to form a diffuse flame. . The direction or position of the flame in the entire furnace is uncertain. Therefore, the explosion-proof safety system using a traditional single-point detection of a fi...

AI Technical Summary

Problems solved by technology

The direction or position of the flame in the entire furnace is uncertain. Therefore, the explosion-proof safety system using the traditional single-point detection of the flame at a fixed position cannot accurately determine whether the flame exists in the furnace, which may cause frequent misjudgments by the system

When the flame in the furnace is extinguished and the system fails to judge correctly, it will inevitably cause the fuel to be continuously supplied and mixed with air to form a mixed gas that meets the explosion limit ratio, resulting in a major safety hazard

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