Regenerative radiant tube burner with flue gas recirculation

Abstract

The invention discloses a regenerative radiant tube burner with flue gas recirculation. The regenerative radiant tube burner comprises a first burner body and a second burner body; the first burner body comprises a first regenerative body, a first burner core penetrating through the first regenerative body and a first air conduit located at the front end of the first burner core, one end of the first burner core is connected with a first gas pipeline, and the first air conduit is connected with a first air pipeline; the second burner body comprises a second regenerative body, a second burner core penetrating through the second regenerative body and a second air conduit located at the front end of the second burner core, one end of the second burner core is connected with a second gas pipeline, and the second air conduit is connected with a second air pipeline; the first air pipeline and the second air pipeline are mutually communicated to form a circulating pipeline which is provided with an air inlet and a flue gas outlet. By means of the regenerative radiant tube burner with flue gas recirculation, the oxygen content of burning supporting air can be decreased, the flame temperature during burning can be decreased, emission of NOx is greatly reduced, and pollution to the atmosphere in the burning process is reduced.

Description

technical field [0001] The invention relates to a radiant tube burner, in particular to a regenerative radiant tube burner with flue gas backflow. Background technique [0002] As early as the mid-nineteenth century, the regenerative combustion technology was applied, but due to its large area occupied by the regenerator, long reversing time, and complicated operation, it was gradually replaced by other combustion technologies. It was not until the 1980s that the miniaturization of the regenerator and the shortening of the reversing time made the regenerative combustion technology develop to a certain extent. The working principle of the regenerative combustion technology is: the regenerative burners are arranged in pairs, using the regenerator as the carrier, alternately heated by the heat of the exhaust gas, and then the heat stored in the regenerator is used to heat the air or gas. The heating body periodically heats and releases heat to preheat the air or gas to a high ...

AI Technical Summary

Problems solved by technology

Since the radiant tube combustion process generally only adopts simple heat exchange technology, the exhaust gas temperature is high, the energy consumption is large, and the energy saving effect is poor.

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