Combustion radiator of blast rotation pre-mixed porous medium gas stove and combustion method thereof

Abstract

The invention relates to a combustion radiator of a blast rotation pre-mixed porous medium gas stove and a combustion method thereof. A traditional gas stove is low in combustion efficiency and high in emission concentration of CO, NOx and other pollutants. The combustion radiator of the blast rotation pre-mixed porous medium gas stove comprises a fan and a gas rotation mixer. A gas injection device and an air injection device are arranged at the lower middle end of the gas rotation mixer in the side direction, the upper stream of the air injection device is connected with an outlet of the fan, an air flow even distributor is arranged above the gas rotation mixer, a porous medium pre-mixer is arranged above the air flow even distributor, a gas flow stabilizing chamber is formed above the porous medium pre-mixer and a porous medium combustion radiator is arranged above the gas flow stabilizing chamber. The combustion radiator of the blast rotation pre-mixed porous medium gas stove is simple in structure, high in combustion efficiency and heat efficiency, low in emission of CO, NOx and other pollutants and larger in combustion load change range.

Description

technical field [0001] The invention belongs to the technical field of porous medium combustion, and relates to a rotary premixed porous medium combustion radiator, which is suitable for use as a burner for civil gas stoves. Background technique [0002] At present, in the burners of civil gas stoves, the main way of gas stoves to mix air and gas is still to adopt the method of natural injection of primary air, using the natural mixing structure of air and gas, and in order to enhance the injection effect and reduce the resistance loss , there is usually no pre-mixing chamber, which will inevitably lead to the difficulty of fully mixing the gas before entering the stove for combustion. At the same time, the amount of air introduced by the ejection method is prone to excess and shortage, which will easily cause incomplete combustion, generate more CO, and reduce Combustion efficiency and thermal efficiency, therefore, how to provide a more accurate amount of air and enhance t...

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Problems solved by technology

[0002] At present, in the burners of civil gas stoves, the main way of gas stoves to mix air and gas is still to adopt the method of natural injection of primary air, using the natural mixing structure of air and gas, and in order to enhance the injection effect and reduce the resistance loss , there is usually no pre-mixing chamber, which will inevitably lead to the difficulty of fully mixing the gas before entering the stove for combustion. At the same time, the amount of air introduced by the ejection method is prone to excess and shortage, which will easily cause incomplete combustion, generate more CO, and reduce Combustion efficiency and thermal efficiency, therefore, how to provide a more accurate amount of air and enhance the premixing effect of air and gas is crucial to improving the combustion efficiency of gas stoves; secondly, most gas stoves use air nozzles Stove head, this kind of gas stove head basically adopts the diffusion combustion flame method of high-speed jet. In order to ensure full combustion and absorb more surrounding air, not only the gas stove head must have a certain combustion height and enough space, but also the gas nozzle must have a certain The complex structure of the gas stove complicates the production process and increases the cost, and the height and space of the combustion stove will cause more heat to be transferred to the surrounding space, resulting in a large amount of heat loss and reducing the thermal efficiency of the gas stove

In addition, the combustion effect of this traditional free space diffusion combustion method is closely related to the uniform effect of the surrounding suction and mixing, and it is easy to generate more CO and NOx

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