Fire cover for burner

Abstract

The invention discloses a fire cover for a burner. The fire cover comprises an outer ring fire cover body. An annular gas cavity with a downward opening is defined by an annular outer side wall body, an annular upper wall body and an annular inner side wall body of the outer ring fire cover body. The annular upper wall body is connected with the annular outer side wall body through multiple connecting ribs. Multiple slot type outward fire hole channels communicating with the annular gas cavity are formed between the annular upper wall body and the annular outer side wall body. The slot type outward fire hole channels are obliquely and upwardly arranged in the direction from the annular gas cavity to the outer side wall of the outer ring fire cover body, and outward openings of the slot type outward fire hole channels are formed in the outer side wall of the outer ring fire cover body. According to the scheme, the slot type outward fire hole channels are obliquely and upwardly arranged in the direction from the annular gas cavity to the outer side wall of the outer ring fire cover body, and the outward openings of the slot type outward fire hole channels are formed in the outer side wall of the outer ring fire cover body; and more uniform burning and heating of gas are facilitated, the construction is convenient, the channels are not likely to be blocked, and secondary air supplementing is easy.

Description

[0001] [technical field] [0002] The invention relates to a fire cap for use on a burner. [0003] [Background technique] [0004] The fire holes of the existing atmospheric burner generally include: round fire holes, square fire holes, and strip-shaped fire holes. Both the round fire holes and the strip-shaped fire holes are machined. Dozens of fire holes are required on the fire cover, and there are problems such as low production efficiency, a large amount of material waste, and high processing costs; square fire holes are generally made by forging, but due to the large number of fire holes and tolerance requirements, the mold accuracy requirements High, complex mold and short life. [0005] In addition, the above-mentioned fire holes are all independent small holes, and there is still a pain point that it is not easy to clean after being blocked. [0006] A certain burner adopts annular flame holes, which solves the problem of high processing costs of round flame holes, ...

AI Technical Summary

Problems solved by technology

[0004] The fire holes of the existing atmospheric burner generally include: round fire holes, square fire holes, and strip-shaped fire holes. Both the round fire holes and the strip-shaped fire holes are machined. Dozens of fire holes are required on the fire cover, and there are problems such as low production efficiency, a large amount of material waste, and high processing costs; square fire holes are generally made by forging, but due to the large number of fire holes and tolerance requirements, the mold accuracy requirements High, complex mold and short life

[0005] In addition, the above-mentioned fire holes are all independent small holes, and there is still a pain point that it is not easy to clean after being blocked

[0006] A certain burner adopts annular flame holes, which solves the problem of high processing costs of round flame holes, square flame holes, and strip flame holes. The secondary air is difficult to replenish, and the technical defects of the flames between adjacent annular fire holes are easy to cross interference, which will cause problems such as yellow flames, unqualified CO content, and low thermal efficiency, and the structure also has the problem that stolen goods are easy to block the fire holes

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