Outer ring fire cover, burner and gas stove

Abstract

This utility model provides an outer ring burner cap, a burner, and a gas stove. The outer ring burner cap includes an outer ring burner cap body, which has an outer ring mixing chamber and an outer ring flame hole. The two ends of the outer ring flame hole are located on the wall of the outer ring mixing chamber and the outer side of the outer ring burner cap body, respectively. The upper edge of the outer ring burner cap body has an eaves structure, which includes an upper guide surface and a side guide surface that gradually extend upwards along a predetermined direction. The upper end of the side guide surface forms an acute angle with the upper end of the upper guide surface, and the end of the side guide surface protrudes beyond the outer ring flame hole. A guide groove is provided on the side guide surface, which is recessed towards the central axis of the outer ring burner cap body and extends circumferentially. By setting the eaves structure and the guide groove, the overflow liquid is blocked from flowing to the outer ring flame hole, preventing the outer ring flame hole from becoming blocked. It also gathers the flue gas and disrupts the flow direction of the flue gas, increasing the residence time of the flue gas, thereby improving energy efficiency while preventing the outer ring flame hole from becoming blocked.

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