High-efficiency burner of blast type gas cooking appliance

Abstract

The invention discloses a high-efficiency burner of a blast type gas cooking appliance. The high-efficiency burner comprises a main burning torch (1), an eternal torch (2) and an air ring (3). The air ring, which is in the shape of an annular groove and surrounds the outer wall of the lower part of the main burning torch, is arranged between the main burning torch and the eternal torch; when the burner works, air flow supplied by a fan enters the air ring through an auxiliary air hole in the lower part of the main burning torch, and then is guided by the air ring to form air jet flow which surrounds the outer wall of the main burning torch, is positioned between the main burning torch and the eternal torch and is jetted upwards; when no iron pan is erected on the gas cooking appliance, the air jet flow does not interfere the normal burning of main burning torch flames and eternal torch flames; when the iron pan is erected, the air jet flow automatically participates in pan bottom mixed torch flames consisting of the main burning torch flames and the eternal torch flames to help burning, so that incomplete burning of the pan bottom mixed torch flames due to oxygen insufficiency is avoided according to the technical scheme. Therefore, the blast type gas cooking appliance achieves the aims of enhancing the burning rate, stabilizing the burning and lowering the content of CO in waste gas.

Description

technical field [0001] The invention relates to a burner for a gas cooker, in particular to a high-efficiency burner for a blast-type gas cooker used in restaurants, canteens, food stalls, and family kitchens for burning gas. Background technique [0002] The burner is the part of the gas cooker that burns gas. The burner of the blast gas cooker is composed of the main torch in the center and the ring-shaped long-burning torch around the main torch. After the iron pot, open the gas valve of the main torch, and the main torch is ignited by the torch flame of the everlasting torch; the key factor that determines whether the gas can be fully burned is the mixing ratio of air and gas. The mixing ratio is adjusted by the damper located at the lower part of the main torch and the air inlet valve and gas valve located at the air inlet of the blower. Among them, the damper has been adjusted in the factory, and the air inlet valve and gas valve can be adjusted by the user, that is, ...

AI Technical Summary

Problems solved by technology

[0002] The burner is the part of the gas cooker that burns gas. The burner of the blast gas cooker is composed of the main torch in the center and the ring-shaped long-burning torch around the main torch. After the iron pot, open the gas valve of the main torch, and the main torch is ignited by the torch flame of the everlasting torch; the key factor that determines whether the gas can be fully burned is the mixing ratio of air and gas. The mixing ratio is adjusted by the damper located at the lower part of the main torch and the air inlet valve and gas valve located at the air inlet of the blower. Among them, the damper has been adjusted in the factory, and the air inlet valve and gas valve can be adjusted by the user, that is, The gas flow ejected from the gas nozzle and the air flow provided by the blower through the damper are mixed in the mixing chamber at the lower part of the main torch, and the mixed gas is burned on the main burner through the main burner to form the main torch flame; if the damper is too large, The main torch flame will be far away from the main burner and extinguished when it leaves the flame. If the damper is too small, the main torch flame will retract into the main torch and flashback will occur, and then burn the main torch;

[0003] Usually, when the gas cooker is in an empty state without an iron pot, adjust the damper so that the main torch flame can burn normally and fully on the main burner; The mixed torch flame formed by flame 07 is incompletely combusted due to lack of oxygen due to the reduction of the contact surface with the external atmosphere. However, when the chef picks up the iron pan for frying, the air inlet door is required to be reset immediately, otherwise the main torch flame will be extinguished when the flame is removed. In fact, it is difficult for the chefs to adjust the air inlet door as needed. , based on this, the combustion rate of the existing gas cooker is less than 20%, which is difficult to improve; the CO content in the exhaust gas is greater than 3000ppm, far exceeding the national standard of 1000ppm; Problems and deficiencies of low and excessive CO content in exhaust gas

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