A fire cover for a gas stove

Abstract

The invention relates to a fire cover for a gas stove. The fire cover includes a ring-shaped body and a gas mixing chamber, and is arranged on the outer ring wall and arranged at least two main fire holes at intervals along the circumferential direction. Below the hole, there are at least two flame-stabilizing holes arranged at intervals in the circumferential direction, and a first flow divider, which can divide the gas mixing chamber into a first gas mixing chamber and a second gas mixing chamber. The first gas mixing chamber It communicates with the flame stabilizing hole, and the second gas mixing chamber communicates with the main flame hole. Compared with the prior art, the advantage of the present invention is that the gas mixing chamber is connected to a corresponding one by the first flow divider arranged in the gas mixing chamber It is divided into two parts, so that the velocity of the mixed gas flow in the mixed gas chamber is low, and at the same time, double insurance is added to the flame stabilization of the main flame hole. One is to use the flame stabilization hole located below the main flame hole to pull its root to stabilize the flame In addition, an independent first air mixing chamber is added to stabilize the flame at the flame-stabilizing hole itself, and the flame-stabilizing effect is good, and the firepower of the main flame hole and the flame-stabilizing hole of the fire cover can also be realized to be the same size and the same size.

Description

technical field [0001] The invention relates to the field of household gas stoves, in particular to a fire cover adapted to a combustion stove. Background technique [0002] Tempering and flame stabilization have always been the focus of research and development of gas burners. Existing burners rely on the fire hole of the fire cover to control the strength of the fire hole, and set the flame stabilization hole to avoid backfire, but the general opening diameter of the fire hole is relatively small. If the gas outlet speed is too high, the flame stabilization effect cannot be achieved only through the flame stabilization hole; or the gas outlet speed appears, when the load required by the combustion device is small, if the gas is in Supply under low pressure, because the injection velocity into the combustion chamber is lower than the combustion velocity of the mixture in the combustion chamber, the flame will be generated on the inner surface of the fire cover facing the co...

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Problems solved by technology

[0003] In another case, the fire cover usually includes an inner ring fire cover and an outer ring fire cover, and the heating method for the pot body is basically a combination of the outer ring flame and the inner ring flame, but the center of the fire cover is still If there is no flame, the heating effect of the central position of the bottom of the pot will be poor. For this reason, the applicant provides a Chinese utility model patent "One Piece" as the patent No. ZL201420412292. A fire cover for a domestic gas stove and a burner using the fire cover" It discloses an inner ring fire cover that can integrate the inner ring and the middle ring and the combustion flame can be sprayed vertically upwards. The fire cover body has The inner ring wall and the outer ring wall, the central through hole is formed in the center of the inner ring wall, the ring channel is formed between the inner ring wall and the outer ring wall, there is a through hole at the bottom of the ring channel, and the upper cover is in the form of a sheet full of mesh holes This structure can make the combustion of the inner ring fire cover concentrated, and the heat loss taken away by the secondary air is less, so the combustion temperature is higher and the thermal efficiency is better; If the gas is released too quickly, it is easy to cause the flame to be separated. After the gas is released, the buffer partition or other technical means used in the above-mentioned fire cover are not used to achieve the effect of stabilizing the flame. Therefore, it is necessary to stabilize the fire cover. Improve the adaptability of the flame and the phenomenon of easy tempering

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