The working principle of tube burner

The burner of the tubular furnace includes the outer wall, the intake pipe group, the intake air and the ignition nozzle. A pneumatic propeller is arranged at the bottom of the burner; A stable combustion hood is arranged on the top of the burner; The bottom or side of the burner is provided with a fire detector mounting tube; The burner is also provided with a fire hole at the bottom. Compact structure, stable combustion, large adjustment ratio, low noise, internal flame detection and alarm system; The flame spreads well, the combustion is complete, the combustion is easy to control. To meet the requirements of today's environmental protection, but also to save fuel, improve combustion efficiency. A premix air channel extending along the axis of the burner through which combustion air can be fed. An eddy current device is arranged in the air passage so that the combustion air can present an eddy current. An injection device for low heat combustion gas is provided downstream of the vortex device.

The injection device has an inlet hole for the combustion gas to prevent the formation of a follow-up area in the air passage. The combustion air presents an eddy, and the low-heat combustion gas is injected into the eddy combustion air and mixed with it, and the mixture is then burned. The device comprises a bracket and a number of burners mounted on the bracket, wherein the mixing section length L in the venturi tube of the burner is 72-84 mm, and the suction inlet section area of the venturi tube is 285-380 mm square. Because the mixing section length in the venturi tube is increased and the suction inlet section area is increased, the power of a single burner is large. In addition, to achieve a high-power gas water heater, there is no need to increase the number of burners and increase the size of heat exchangers, thus greatly reducing the cost. The primary and secondary burner has a secondary burner cover and a circular primary burner cover surrounding the secondary burner cover. The secondary burner cover has the secondary burner fire hole, and the main burner cover has the main burner fire hole. On the upper wall of the main burner cover between the fire hole of the main burner and the fire hole of the secondary burner, a hollow convex part is protruded; The center of the main burner cover is taken as the cutting rotation axis to make it rotate, and the thick part between the longitudinal wall of the auxiliary burner's firehole side of the convex part and the longitudinal wall side of the main burner's firehole side is cut through the lathe, so as to form a pair of transmitting fireholes on the convex part. The burner housing is contained in the upstream and downstream ends opposite the axial direction.