Blast-injecting forced-advancing full pre-mixing energy-saving combustor

Abstract

The invention provides a blast-injecting forced-advancing full pre-mixing energy-saving combustor which comprises a main cavity, a blast pipe, a fuel gas pipe, a nozzle, a fire distributor and a firing needle, wherein the blast pipe and the fuel gas pipe are connected with the main cavity; the nozzle is connected with the fuel gas pipe; and the fire distributor and the firing needle are arranged at the top of the main cavity. The blast-injecting forced-advancing full pre-mixing energy-saving combustor is characterized in that a screen, a flow fixer and a gas flow mixer are sequentially arranged between the fire distributor and the nozzle in the main cavity; the caliber of the gas outlet end of the flow fixer is smaller than the caliber of a gas inlet end of the flow fixer; the flow mixer is a cylinder of which the diameter corresponds to the internal diameter of the main cavity; and a plurality of gas mixing holes are arranged vertically along the cylinder and the calibers of all gas outlet ends of the gas mixing holes are smaller than the calibers of all gas inlet ends of the gas mixing holes. By adopting the structure, the effects of the high efficiency, the energy conservation and the environment protection are achieved.

Description

Technical field: [0001] The invention relates to a gas burner, in particular to a full premixed energy-saving burner with blowing injection and forced entry. Background technique: [0002] There are generally two types of burners for existing gas stoves. The first type is an atmospheric burner with an ejector tube. The kinetic energy ejected from the nozzle inhales a certain amount of air, forms a mixed gas, and ignites and burns on the flame distribution cover on the burner to generate a Bunsen flame. To achieve complete combustion, a large amount of secondary air must be supplemented, otherwise smoke emissions will occur It is too high and the thermal efficiency is low. The second is an infrared burner with an ejector type. The diameter of the burner head is about Φ140mm. If the primary air is too much, although the smoke emission and thermal efficiency are improved compared with the former, the heat flow is limited, the heat intensity of the burning flame is low, the adj...

AI Technical Summary

Problems solved by technology

[0002] There are generally two types of burners for existing gas stoves. The first type is an atmospheric burner with an ejector tube. The kinetic energy ejected from the nozzle inhales a certain amount of air, forms a mixed gas, and ignites and burns on the flame distribution cover on the burner to generate a Bunsen flame. To achieve complete combustion, a large amount of secondary air must be supplemented, otherwise smoke emissions will occur It is too high and the thermal efficiency is low. The second is an infrared burner with an ejector type. The diameter of the burner head is about Φ140mm. If the primary air is too much, although the smoke emission and thermal efficiency are improved compared with the former, the heat flow is limited, the heat intensity of the burning flame is low, the adjustment range is relatively small, and its stability is relatively poor. Measures are needed to prevent cold Tempering, thermal tempering and defireing, because the combustion methods of the two are natural, the mixing of gas and air is passive, the mixed gas formed by gas and air has a low degree of mixing, and the flow rate of the mixed gas It shows a deceleration trend, and the mixing gas passage between the gas injection and the fire distributor is open, and there are no devices that facilitate the mixed gas to strengthen remixing. At the same time, because the pressure of the gas injection is limited, the nozzles are mostly single holes. , the holes will reduce the pressure of the gas injection body, and after adding some devices, it will affect the flow rate process of the mixed gas, thus affecting the combustion conditions

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