Combustor fire cover

Abstract

A combustor fire cover comprises an annular inner ring wall face, an annular outer ring wall face and a cover body located above the inner ring wall face and the outer ring wall face, wherein the inner ring wall face and the outer ring wall face are concentrically arranged in a spaced mode. The outer ring wall face is provided with fire holes and small fire holes, wherein the fire holes are evenly distributed in the circumferential direction of the outer ring wall face at intervals and penetrate through the outer ring wall face in the thickness direction, and the small fire holes and the fire holes are arranged in a vertical spaced mode. A partition plate is arranged between the inner ring wall face and the outer ring wall face, the space defined by the inner ring wall face, the outer ring wall face and the cover body is partitioned into a first cavity and a second cavity, the fire holes are located in the first cavity, the small fire holes are located in the second cavity, the partition plate is provided with holes to enable the first cavity and the second cavity to be communicated, the first cavity is communicated with an external gas mixing room, and fuel gas enters the second cavity from the first cavity through the holes. By means of the combustor fire cover, extinction caused when big fire and small fire are switched or detonation caused when fire is extinguished or the like can be prevented, the phenomena of floating flames and blow-off of the fire holes of the fire cover can be prevented, and the combustor fire cover is of a detachable structure and is convenient to clean.

Description

technical field [0001] The invention relates to a burner fire cover. Background technique [0002] In the burner, in order to stabilize the burning flame, a flame-stabilizing groove is usually provided on the fire cover. The flame-stabilizing groove is similar to the fire hole of the fire cover, and is connected to the air mixing chamber in the fire cover, and is generally located on the fire cover. Above or below the fire hole. For example, Chinese patent CN204132345A discloses a "flame-stabilizing burner suitable for gas cookers" and discloses a ring-shaped flame-stabilizing groove. Although it plays a certain role in stabilizing the flame, it is easy to cause overflow during use and block the flame-stabilizing groove. The tank is not easy to clean, and when the burner is turned on and off or when the fire is switched, that is, when the pressure in the air-mixing chamber changes significantly, it will cause the fire to explode and so on. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN204132345A discloses a "flame-stabilizing burner suitable for gas cookers" and discloses a ring-shaped flame-stabilizing groove. Although it plays a certain role in stabilizing the flame, it is easy to cause overflow during use and block the flame-stabilizing groove. The groove is not easy to clean, and when the burner is turned on and off or when the fire is switched, that is, when the pressure in the air-mixing chamber changes significantly, it will cause the fire to be shut down, etc.

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