hydrogen burner

Abstract

The invention relates to a hydrogen gas combustor, which comprises a central channel, an intermediate channel and an outer ring channel. The hydrogen gas combustor is characterized in that a flame stabilizing disk is arranged at the front part of the outer ring channel; the flame stabilizing disk comprises a closing section and a flaring section; a plurality of ventilation holes are formed at thesmall end part of the flaring section; a plurality of vortex guiding cutting grooves are arranged at the large end part of the flaring section; the central channel and the front end of the intermediate channel are arranged in the flame stabilizing disk and are communicated with the flame stabilizing disk; the front part of the central channel is connected with a plurality of spray pipes; spouts of the spray pipes are attached to the outer wall of the flaring section on the flame stabilizing section; and an ignition device is arranged in the outer ring channel. According to the hydrogen gas combustor disclosed by the invention, by using a flame stabilizing disk structure, small part of hydrogen gas and air transmitting through the ventilation ports of the flame stabilizing disk and the vortex guiding cutting grooves are fully mixed inside the flame stabilizing disk; the most of hydrogen gas is sprayed out through the spray pipe and is paved and dispersed in the flame stabilizing disk; a fluid field structure is reasonably organized; the mixing of air and hydrogen gas is reasonably controlled; the hydrogen gas can be ensured to be completely combusted; the flame length is controlledwithin a reasonable range; and safe and stable operation of the boiler is ensured.

Description

technical field [0001] The present invention relates to a burner, in particular to a hydrogen burner for burning hydrogen. Background technique [0002] The ignition point of hydrogen is high, but its ignition energy is very small, so it is easy to catch fire and the flame spreads quickly. At the same time, the density of hydrogen is very small. It is difficult to ensure that hydrogen and oxygen in the air are fully mixed with a burner of general structure. Carried by the airflow, it quickly flows to the furnace outlet before complete combustion. The flame of hydrogen combustion is very long, which causes hydrogen to burn in the middle and rear of the furnace, resulting in excessively high flue gas outlet temperature, which is easy to burn the heating surface at the rear of the boiler. [0003] At present, there are few hydrogen burners in industrial applications. Due to the low density of hydrogen, when hydrogen enters the furnace for combustion, the hydrogen is carried by ...

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Problems solved by technology

[0002] The ignition point of hydrogen is high, but its ignition energy is very small, so it is easy to catch fire and the flame spreads quickly. At the same time, the density of hydrogen is very small. It is difficult to ensure that hydrogen and oxygen in the air are fully mixed with a burner of general structure. Carried by the air flow, it quickly flows to the furnace outlet before complete combustion. The flame of hydrogen combustion is very long, which causes hydrogen to burn in the middle and rear of the furnace, resulting in excessive temperature of the flue gas outlet, which is easy to burn the heating surface of the boiler tail

[0003] At present, there are few hydrogen burners in industrial applications. Due to the low density of hydrogen, when hydrogen enters the furnace for combustion, the hydrogen is carried by the jet and quickly flows to the furnace outlet without complete combustion. Therefore, the flame of hydrogen combustion is very small. In severe cases, it may cause burning of the heating surface at the rear of the furnace

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