Burner and gas stove

Abstract

The invention provides a burner and a gas stove comprising the same. The burner comprises a stove head, an air distribution plate assembly, a burner cap and a cooling element; the air distribution plate assembly covers above the stove head; the burner cap covers above the air distribution plate assembly and is provided with a fire hole; the cooling element is located at the position of the fire outlet of the fire hole and used for cooling the flame formed at the position of the fire hole. According to the burner, the burner cap is provided with the cooling element and accordingly the temperature of the flame particularly the outer flame is reduced, the generation of the high temperature oxide nitrogen oxide is inhibited, and the low nitrogen requirement of an energy-saving environment-friendly burner is achieved; the cooling element is provided with a ventilation hole or a ventilation groove and accordingly the secondary air required by burning of the burner can be supplied to enable the gas to be fully burned and accordingly the heating efficiency of the burner is improved and the generation of the carbonic oxide is reduced; meanwhile the structure is simple and the maintenance and the cleaning are convenient.

Description

technical field [0001] The invention relates to the field of home appliances, more specifically, to a burner capable of suppressing the generation of NOx and a gas range including the burner. Background technique [0002] During the combustion of fuel, nitrogen oxides will be generated, mainly NO and NO2, collectively referred to as NOx. On the one hand, NOx in the atmosphere will form nitric acid rain after being dissolved in water. Nitric acid rain will bring extensive harm to the environment. Cause huge economic losses; on the other hand, NOx also has direct damage to human health. [0003] There is a partially premixed burner on the market. Due to the insufficient oxygen content in the mixture, the gas cannot be burned out on the inner flame surface, and the unburned gas can only complete the combustion process on the outer flame surface by relying on the secondary air entering. Because of the high temperature of the outer flame of the flame, this kind of burner is bene...

AI Technical Summary

Problems solved by technology

[0003] There is a partially premixed burner on the market. Due to insufficient oxygen content in the mixture, the gas cannot be burned out on the inner flame surface, and the unburned gas can only complete the combustion process on the outer flame surface by relying on the secondary air entering.

Because of the high temperature of the outer flame of the flame, this kind of burner is beneficial to the N in the air. 2 Oxidation to NO X , causing harm to the environment and human

[0004] There is also an infrared burner on the market. The gas is burned without flame, which reduces the amount of NOx. However, on the one hand, due to the excessive premixed air, it is easy to flash back when the gas pressure or the calorific value of the gas is low. On the other hand, since the head of the infrared burner is usually a ceramic plate or a metal mesh, thousands of fire holes are arranged on it, when soup flows into the fire hole, it is very easy to block the fire hole, and at the same time the fire hole The diameter is small, and it is very inconvenient to clean. In addition, the manufacturing process of the burner is complicated, and the maintenance cost is high; The radiation is also very large, which can easily make people feel chest tightness

Images