Double-cyclone combustor with primary air distribution structure

Abstract

The invention discloses a double-cyclone combustor with a primary air distribution structure; and the double-cyclone combustor consists of a fan, an outer cylinder, an ignition mechanism, an inner cylinder, a cyclone piece, an oil nozzle and an oil way. The double-cyclone combustor is characterized in that cyclone piece blades are set as an inner cyclone blade and an outer cyclone blade; an air stabilizing cylinder penetrating through the inner cylinder along the axis of the inner cylinder is arranged at the top of the inner cylinder; the outer cyclone blade coats the air stabilizing cylinder, and is connected with the outer cylinder through support legs; the inner cyclone blade is arranged in the air stabilizing cylinder; a hole is formed in the center of the inner cyclone blade; and the oil nozzle is positioned rightly above the hole of the inner cyclone blade. The double-cyclone combustor has the following beneficial effects: the fuel and air mixing effect is intensified to improve the combustion efficiency; cyclone air currents are formed in a combustion chamber to form rotating flame so as to improve the combustion stability; and the carbon formation on the wall surface of the combustion chamber is prevented.

Description

technical field [0001] The invention belongs to the technical field of air distribution structure of a combustion chamber of a burner. Background technique [0002] In order to reduce the heat required for ignition, the fuel is heated rapidly so that the fuel reaches the ignition temperature as soon as possible to achieve ignition as soon as possible. Therefore, the amount of air required for fuel combustion is divided into primary air, secondary air, and tertiary air. The role of the primary air is to send the fuel into the combustion chamber and provide the amount of oxygen required for the initial ignition of the fuel. After the fuel is ignited, the secondary air and tertiary air are fed into the rear section of the combustion chamber to supply the oxygen required for the subsequent combustion of the fuel to ensure the complete combustion of the fuel. [0003] At present, in the graded air distribution structure of the burners on the market, the primary air distribution...

AI Technical Summary

Problems solved by technology

[0003] At present, in the graded air distribution structure of the burners on the market, the primary air distribution is directly blown to the combustion chamber or the single cyclone air distribution, the mixing effect of fuel and air is poor, the flame is too long, the afterburn is serious, the combustion is insufficient, and it is easy to burn. Carbon formation, easy to emit black smoke

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