Double-rotational-flow single-heat-storage flat flame burner

Abstract

The utility model discloses a double-rotational-flow single-heat-storage flat flame burner including a shell. An air flue gas cavity and a combustion cavity which are communicated are arranged in theshell, an upper part of the air flue gas cavity is connected with an air flue gas pipeline, a bottom end of the air flue gas cavity is tangent to the circumference of the combustion cavity, a fuel gasinlet channel is arranged at a bottom of the air flue gas cavity on the shell, the fuel gas inlet channel is tangent to the circumference of the combustion cavity, and an ignition burner extending into the combustion cavity is arranged on the shell. According to the burner, the rotational flow of gas in an inner cavity of the burner is achieved through a built structure in the burner, accessoriessuch as a rotational flow piece which is generally used are reduced, and the manufacturing and maintaining cost of the burner is reduced. By means of the double-helix structure design in the burner,air and fuel gas flow into the combustion cavity in a double-rotation mode, the rotating speed of airflow in the combustion cavity is increased, meanwhile, air and fuel gas are better mixed evenly, the combustion efficiency of the fuel gas is improved, the flame length in the furnace cavity is reduced, the interior of the furnace cavity is evenly heated, and the design size of a furnace body can be reduced.

Description

technical field [0001] The invention relates to a single heat storage flat flame burner, which belongs to the technical field of burners. Background technique [0002] At present, the single regenerative flat flame burner mainly utilizes the installation of an axial vane type or a volute type swirler to make the air and gas swirl out. The internal structure of the burner is complex and the accessories are cumbersome. Another type of burner, the fuel is injected at high speed through the constricted nozzle hole, and only the tangential air entering the combustion chamber is used to form swirling gas. The gas enters from the axial direction of the combustion chamber, and the gas and air are not mixed evenly. Gas combustion efficiency is low. [0003] CN201715514U discloses the regenerative double swirl flow flat flame burner, is to be provided with heat accumulator in circular thermal insulation heat storage box body, is provided with loading and unloading heat storage body c...

AI Technical Summary

Problems solved by technology

Paragraph 0009 of its description records that "one end of the double-swirl burner 3 is provided with a cold air pipe 5 and a cold air inlet 4", but there is no detailed description of the structure of the double-swirl burner 3, which is attached figure 2 It can be seen that the double swirl flow is realized by arranging the swirl vanes (swirl device) in the air and gas pipes, the structure is complex and the maintenance is inconvenient

Still do not substantially solve the problems existing in the existing flat flame burner

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